Flour mill dust falling equipment and use method thereof

Abstract

The invention relates to the technical field of flour dust falling, in particular to flour mill dust falling equipment and a using method thereof.The flour mill dust falling equipment comprises a middle shell, dust falling boxes are fixedly connected to the two sides of the middle shell, and dust collection bins used for alternately collecting dust and compressing are arranged on the surfaces of the outer sides of the dust falling boxes; the top surface of the dust falling box is provided with a dust falling nozzle for increasing the weight of sucked dust mist, the inner side surface of the middle shell is provided with a driven trigger piece for synchronizing the movement process of each component, and the outer side surface of the dust falling box is provided with a dust collection baffle for guiding airflow to enhance the adsorption range; according to the dust falling device for the flourmill, suspended dust is rapidly converted into settleable particles through a closed-loop process of double-side alternate dust collection, compression granulation and synchronous spraying weight increment in function, and the suspension condition required by dust explosion is cut off from the source; the whole process is closed, secondary diffusion is avoided, additional pump valves and electric control elements are not needed, energy consumption is low, and fault points are few.

Description

Technical Field

[0001] This invention relates to the field of flour dust suppression technology, specifically to a dust suppression device for flour mills and its usage method. Background Technology

[0002] Flour mills generate a large amount of fine dust during the conveying, grinding, sieving, and packaging processes. When the concentration reaches 30 g / m³, it can explode upon contact with static electricity or a spark. Dust also reduces visibility, clogs equipment, accelerates bearing wear, and harms workers' respiratory health. Therefore, flour mills must continuously reduce dust to: prevent explosions, extend equipment lifespan, and ensure food safety and employee health.

[0003] Existing technology uses active adsorption to filter flour particles and adsorb them into the device container. The device container has a large capacity, and during the adsorption process, flour particles may still fill the container, which still poses a risk of secondary diffusion inside and an explosion hazard when exposed to an open flame.

[0004] In view of this, we propose a dust suppression device for flour mills and its usage method. Summary of the Invention

[0005] The purpose of this invention is to provide a dust suppression device for flour mills and its usage method, to solve the problem mentioned in the background art where the dust suppression devices for flour mills still have the potential for dust diffusion inside the container, causing a dust explosion hazard. To achieve the above objective, this invention provides the following technical solution: A dust suppression device for flour mills includes an inner shell, a water tank fixedly connected to the top surface of the inner shell, dust suppression boxes fixedly connected to both sides of the inner shell, a dust collection chamber provided on the outer surface of the dust suppression box, a dust suppression nozzle provided on the top surface of the dust suppression box, a driven trigger provided on the inner surface of the inner shell, a dust collection baffle provided on the outer surface of the dust suppression box, and a recovery flap provided on the bottom surface of the dust suppression box.

[0006] Preferably, an inlet pipe is fixedly connected to the outer surface of the water tank, and a recycling bin is fixedly connected to the bottom surface of the dust collection box. The dust collection box and the recycling bin are symmetrically distributed on both sides of the outer shell.

[0007] Preferably, the dust collection chamber includes an air inlet, which is fixedly connected to the outer surface of the dust collection box. A piston rod is slidably connected to the inner surface of the dust collection box. Piston flaps are fixedly connected to both ends of the piston rod. A connecting slider is fixedly connected to the outer surface of the piston rod. A cam rod is slidably connected to the inner surface of the connecting slider. A drive motor is fixedly connected to the inner surface of the inner shell.

[0008] Preferably, the piston rod passes through the inner outer shell and the dust collection boxes on both sides, the piston disc is slidably connected to the inner surface of the dust collection box, the connecting slider is slidably connected to the inner surface of the inner outer shell, the cam rod is rotatably connected to the inner surface of the inner outer shell, the output end of the drive motor is fixedly connected to the cam rod, and the groove on the cam rod contacts the protrusion in the connecting slider.

[0009] Preferably, the dust suppression nozzle includes a buffer box, the buffer box is fixedly connected to the top surface of the dust suppression box, a connecting pipe is fixedly connected to the top surface of the buffer box, a one-way liquid inlet valve is fixedly connected to the inner surface of the buffer box, a delay rod is slidably connected to the inner surface of the buffer box, a compression spring is fixedly connected to the inner surface of the delay rod, a nozzle piston is fixedly connected to one end of the delay rod, a fixed magnet is fixedly connected to the inner surface of the buffer box, a movable magnet is fixedly connected to the top surface of the nozzle piston, a one-way nozzle is fixedly connected to the bottom surface of the buffer box, and a nozzle pipe is fixedly connected to the inner surface of the buffer box.

[0010] Preferably, the dust suppression nozzles are symmetrically distributed on both sides of the water tank, the two ends of the connecting pipe are fixedly connected to the one-way liquid inlet valve and the water tank respectively, the nozzle piston is slidably connected to the inner surface of the buffer tank, the fixed magnet and the movable magnet are both arranged in a Heilbeck array, the strong magnetic surface of the fixed magnet and the strong magnetic surface of the movable magnet are in contact with each other, the one-way nozzles are equidistantly distributed on the inner surface of the buffer tank, and the nozzle pipe is fixedly connected to the one-way nozzles.

[0011] Preferably, the driven trigger includes an upper driven frame, which is fixedly connected to the top surface of the piston rod. An actuating rod is rotatably connected to the inner surface of the middle housing. A connecting groove is provided on the outer surface of the actuating rod. A reverse movable seat is slidably connected to the inner surface of the connecting groove. Driven linear rods are fixedly connected to both ends of the reverse movable seat. A lower driven rod is fixedly connected to the outer surface of the upper driven frame.

[0012] Preferably, the actuating rod is slidably connected to the inner surface of the upper driven frame, the connecting groove is slidably connected to the outer surface of the upper driven frame, the driven linear rod is slidably connected to the inner surface of the delay rod, the two ends of the compression spring are fixedly connected to the driven linear rod and the delay rod respectively, and the lower driven rod is slidably connected to the inner surface of the middle housing.

[0013] Preferably, the dust collection baffle includes a baffle bracket, the baffle bracket is fixedly connected to the outer surface of the dust collection box, the outer surface of the inner shell is fixedly connected to a connecting rod bracket, the outer surface of the baffle bracket is rotatably connected to two side baffles, the two ends of the two side baffles are fixedly connected to connecting rod connecting blocks, the outer surface of the connecting rod connecting blocks is rotatably connected to a baffle connecting rod, and the outer surface of the baffle connecting rod is fixedly connected to symmetrically distributed connecting rod push blocks.

[0014] Preferably, the two side baffles are symmetrically distributed on both sides of the inner shell, the two ends of the baffle connecting rod are rotatably connected to the connecting rod connecting blocks on both sides, and the connecting rod push block is in contact with the lower driven rod.

[0015] Preferably, the recycling flap includes an L-shaped block, which is rotatably connected to the inner surface of the recycling bin, a drop groove is provided on the bottom surface of the dust collection bin, and a transverse push rod is slidably connected to the inner surface of the outer shell.

[0016] Preferably, the L-shaped block is slidably connected to the inner surface of the lower drop trough, the transverse push rod is slidably connected to the bottom surface of the L-shaped block, and the transverse push rod is in contact with the lower driven rod.

[0017] A dust suppression device for a flour mill and its method of use include the following steps: S1, drive motor 35, cam rod 34, connecting slider 33, piston rod 32 reciprocate; piston rod 32 is equipped with "upper driven frame 51", which divides the movement into three paths through lever, reverse moving seat 52, and lower driven rod 53, respectively controlling spray, baffle and flap, to ensure that each action is strictly synchronized with the intake / exhaust rhythm; S2. When the piston rod 32 moves to the right, the left piston disc 321 moves away from the air inlet 31 to draw in air, drawing dust-laden air into the left dust collection box 2. During the air intake process, the piston rod 32 pushes the reverse movable seat 52 in the opposite direction to the piston via the driven trigger 5, causing the nozzle piston 432 in the air intake buffer box 41 to be started with a delay. The magnetic sticker and compression spring 431 first store force and then release it instantly, atomizing water into droplets at high speed and spraying them into the air intake dust collection box 2, causing the dust to become heavier and fall earlier. S3. The right piston valve 321 is close to the intake port 31 to exhaust the air and squeeze the dust that has been sucked in and sprayed with water to suppress the dust into a clump, increasing its volume and weight, making it easier to clean. S4. The lower driven rod 53 pushes the baffle connecting rod 64 at the end of the piston rod 32's stroke, causing the exhaust side baffle to close and the intake side baffle to open, guiding the high-speed airflow that is being drawn in to the intake port, forming "jet suction enhancement" and expanding the effective dust collection range. S5. The horizontal push rod 72 is pushed down by the driven rod 53 to the bottom of the L-shaped block 71, the flap closes, ensuring the compression area is sealed, the piston rod 32 reverses, the push rod leaves the L-shaped block 71, the flap swings down due to gravity, and the flour that has been pressed into granules falls into the recycling box 21 along the drop trough 711. Before the next cycle begins, the push rod enters the support position again, and the flap closes again.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, by setting up a dust collection chamber, a closed-loop process of alternating dust collection on both sides, compression into granules and synchronous spraying for weight enhancement is used to quickly convert suspended dust into settleable particles, cutting off the suspension conditions required for dust explosion at the source; the entire process is sealed to avoid secondary diffusion and keep the dust concentration in the workshop below the safe threshold.

[0019] In this invention, by setting up a dust suction baffle, the exhaust side baffle is closed and the suction side baffle is opened, which guides the exhaust high-speed airflow to the intake port that is currently suctioning, forming a "jet suction enhancement" and expanding the effective dust suction range.

[0020] In this invention, by setting the dust suppression nozzle, the magnetic sticker-spring delayed spray mechanism only supplies water momentarily on the suction side, saving about two-thirds of the water compared to continuous spraying; a single motor and a single piston rod synchronously drive all actuators, without additional pumps, valves and electrical control components, resulting in low energy consumption and fewer points of failure. Attached Figure Description

[0021] Figure 1 This is a top view of the overall structure of the present invention; Figure 2 This is a side view diagram of the overall structure of the present invention (A). Figure 3 This is a side view schematic diagram of the overall structure of the present invention (B). Figure 4 This is a front view schematic diagram of the overall structure of the present invention; Figure 5 This is a front view schematic diagram of the internal structure of the present invention; Figure 6 The present invention comprises the outer casing, dust collection box, and piston rod; Figure 7 These are the components of the dust collection chamber of the present invention; Figure 8 The dust suppression nozzle and dust suppression box of the present invention; Figure 9 These are the components of the dust suppression nozzle of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of point A in the middle; Figure 11 These are the components of the driven trigger of the present invention; Figure 12 For the present invention Figure 11 Enlarged view at point B in the middle; Figure 13 The present invention comprises an upper driven frame, a lever, and a reverse movable seat; Figure 14 Diagram A shows the motion relationship between the piston rod, piston disc, reverse moving seat, and nozzle piston of this invention. Figure 15 Diagram B shows the motion relationship between the piston rod, piston disc, reverse moving seat, and nozzle piston of this invention. Figure 16 Diagram C shows the motion relationship between the piston rod, piston disc, reverse moving seat, and nozzle piston of this invention. Figure 17 The present invention comprises a piston rod, a piston disc, and two side baffles; Figure 18 This is an exploded flowchart of the two side baffles and connecting rod support of the present invention; Figure 19 The components of this invention are the lower driven rod, the baffle connecting rod, and the transverse push rod. Figure 20 The present invention comprises an outer shell, a recycling bin, and a lateral push rod; Figure 21 For the present invention Figure 21 Enlarged view at point C; Figure 22 This is an exploded view of the L-shaped block and the transverse push rod of the present invention; In the diagram: 1. Outer shell; 11. Water tank; 12. Water inlet pipe; 2. Dust settling box; 21. Recycling box; 3. Suction chamber; 31. Air inlet; 32. Piston rod; 321. Piston disc; 33. Connecting slider; 34. Cam rod; 35. Drive motor; 4. Dust settling nozzle; 41. Buffer box; 42. Connecting pipe; 421. One-way liquid inlet valve; 43. Delay rod; 431. Compression spring; 432. Nozzle piston; 44. Fixed magnet; 441. Movable magnet; 4 5. One-way nozzle; 451. Nozzle pipe; 5. Driven trigger; 51. Upper driven frame; 511. Actuating rod; 512. Connecting groove; 52. Reverse moving seat; 521. Driven direct rod; 53. Lower driven rod; 6. Dust suction baffle; 61. Baffle bracket; 62. Linkage bracket; 63. Side baffles; 631. Linkage connecting block; 64. Baffle linkage; 641. Linkage push block; 7. Recycling flap; 71. L-shaped block; 711. Drop chute; 72. Lateral push rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 22 The present invention provides a technical solution: a dust suppression device for a flour mill, comprising an outer shell 1, a water tank 11 fixedly connected to the top surface of the outer shell 1, dust suppression boxes 2 fixedly connected to both sides of the outer shell 1, a dust collection chamber 3 provided on the outer surface of the dust suppression box 2, a dust suppression nozzle 4 provided on the top surface of the dust suppression box 2, a driven trigger 5 provided on the inner surface of the outer shell 1, a dust collection baffle 6 provided on the outer surface of the dust suppression box 2, and a recycling flap 7 provided on the bottom surface of the dust suppression box 2.

[0024] A water inlet pipe 12 is fixedly connected to the outer surface of the water tank 11, and a recycling box 21 is fixedly connected to the bottom surface of the dust settling box 2. The dust settling box 2 and the recycling box 21 are symmetrically distributed on both sides of the inner shell 1.

[0025] The outer shell 1 is separated from the dust collection box 2. The dust collection box 2 is kept sealed. The recycling box 21 is used to collect flour dust after dust collection. The water tank 11 stores water for the dust collection nozzle 4 to spray flour powder for dust collection. Water is added to the water tank 11 through the rear water inlet pipe 12.

[0026] The dust collection chamber 3 includes an air inlet 31, which is fixedly connected to the outer surface of the dust settling box 2. A piston rod 32 is slidably connected to the inner surface of the dust settling box 2. Piston discs 321 are fixedly connected to both ends of the piston rod 32. A connecting slider 33 is fixedly connected to the outer surface of the piston rod 32. A cam rod 34 is slidably connected to the inner surface of the connecting slider 33. A drive motor 35 is fixedly connected to the inner surface of the outer shell 1.

[0027] The piston rod 32 passes through the inner shell 1 and the dust collection boxes 2 on both sides. The piston disc 321 is slidably connected to the inner surface of the dust collection box 2. The connecting slider 33 is slidably connected to the inner surface of the inner shell 1. The cam rod 34 is rotatably connected to the inner surface of the inner shell 1. The output end of the drive motor 35 is fixedly connected to the cam rod 34. The groove on the cam rod 34 contacts the protrusion in the connecting slider 33.

[0028] With the dust collection chamber 3 set up, it alternately sucks in and exhausts air on both sides. When sucking in air, it collects flour dust, and when exhausting air, it compresses the flour dust into a ball for easy collection. During use, the drive motor 35 drives the cam rod 34 to rotate. The surface of the cam rod 34 has a double helical cam groove connected end to end, which is used to contact the protrusion in the connecting slider 33. When the cam rod 34 rotates at a constant speed, the connecting slider 33 will move back and forth on the surface of the cam rod 34, thereby driving the piston rod 32 to move back and forth. During the movement of piston rod 32, piston discs 321 at both ends move within dust collection chamber 2. The surface of piston discs 321 is covered with a coating to prevent flour from sticking. As piston discs 321 reciprocate, they draw air into or exhaust air from dust collection chamber 2 through air inlet 31. When piston discs 321 move away from air inlet 31, a negative pressure is generated to draw air from outside air inlet 31 into dust collection chamber 2, thereby actively adsorbing dust particles in the air. When piston discs 321 approach air inlet 31, they expel the air inside dust collection chamber 2 and compress the dust particles adsorbed inside, squeezing them into clumps. These clumps will fall due to gravity, preventing the dust from dispersing inside dust collection chamber 2 and posing a risk of dust explosion. Since the piston rod 32 simultaneously drives the piston discs 321 on both sides to move, and the air inlet 31 is located at both ends, the piston rod 32 moves closer to one side of the air inlet 31 while moving away from the other side of the air inlet 31, so that the air intake of the two air inlets 31 is opposite to the air intake, thereby alternately sucking in dust and expelling gas and compressing dust.

[0029] The dust suppression nozzle 4 includes a buffer box 41, which is fixedly connected to the top surface of the dust suppression box 2. A connecting pipe 42 is fixedly connected to the top surface of the buffer box 41. A one-way liquid inlet valve 421 is fixedly connected to the inner surface of the buffer box 41. A delay rod 43 is slidably connected to the inner surface of the buffer box 41. A compression spring 431 is fixedly connected to the inner surface of the delay rod 43. A nozzle piston 432 is fixedly connected to one end of the delay rod 43. A fixed magnet 44 is fixedly connected to the inner surface of the buffer box 41. A movable magnet 441 is fixedly connected to the top surface of the nozzle piston 432. A one-way nozzle 45 is fixedly connected to the bottom surface of the buffer box 41. A nozzle pipe 451 is fixedly connected to the inner surface of the buffer box 41.

[0030] Dust suppression nozzles 4 are symmetrically distributed on both sides of water tank 11. The two ends of connecting pipe 42 are fixedly connected to one-way liquid inlet valve 421 and water tank 11 respectively. Nozzle piston 432 is slidably connected to the inner surface of buffer tank 41. Fixed magnet 44 and movable magnet 441 are both arranged in a Heilbeck array. The strong magnetic surface of fixed magnet 44 and the strong magnetic surface of movable magnet 441 are in contact with each other. One-way nozzles 45 are equidistantly distributed on the inner surface of buffer tank 41. Nozzle pipe 451 is fixedly connected to one-way nozzles 45.

[0031] By setting up the dust-suppressing nozzle 4, the flour is sprayed during the process of adsorbing flour dust. After absorbing water, the flour will become heavier and fall. During use, the buffer box 41 serves to install and protect the internal components. At the same time, the internal cavity is used to store water. It is connected to the top of the dust-suppressing box 2. The sprayed water mist enters the interior from the top of the dust-suppressing box 2. During the movement of the piston rod 32, the driven trigger 5 drives the driven linear rod 521 to move the delay rod 43, so that the movement direction of the delay rod 43 on the same side is opposite to the direction of the piston petal 321. In this way, when the piston petal 321 on this side moves away from the air inlet 31 to adsorb dust, the delay rod 43 will move closer to the air inlet 31, squeezing out the water inside the buffer box 41 through the one-way nozzle 45 for spraying. The driven direct rod 521 will not directly push the delay rod 43. Since the nozzle piston 432 is attracted to the strong magnetic surface of the fixed magnet 44 in the buffer box 41 through the contact of the movable magnet 441, the driven direct rod 521 will first squeeze the compression spring 431 inside the delay rod 43. The compression spring 431 cannot overcome the attraction between the movable magnet 441 and the fixed magnet 44 temporarily, so the delay rod 43 stays in place. The compression spring 431 stores force until it can no longer be compressed. Then the driven direct rod 521 pushes the delay rod 43, so that the nozzle piston 432 moves forward and squeezes water out of the one-way nozzle 45. The magnetic directions on the movable magnet 441 and the fixed magnet 44 are arranged in a Hellbeck array. When the strong magnetic surfaces come into contact with each other and move, they will alternately repel and attract each other. The size of the movable magnet 441 is the same as the length of a complete Hellbeck cycle of the fixed magnet 44, that is, a complete NSN unit. The fluctuations of attraction and repulsion are the greatest. Thus, when the driven linear rod 521 pushes the delay rod 43, it will push it out of the attractive area. At this time, the movable magnet 441 and the nozzle piston 432 are in the repulsive area and are pushed apart. The compression spring 431 returns to its original position and pushes the nozzle piston 432 to the next attractive area. In this way, the movement of the delay rod 43 and the nozzle piston 432 is intermittent, and the movement is faster due to the repulsive force and spring reset, thus having greater kinetic energy to squeeze water out of the one-way nozzle 45. The spray speed is fast, which breaks the water column into droplets and achieves the spray effect. Both the nozzle piston 432 and the one-way inlet valve 421 are one-way valves. Water can only be sprayed out from the buffer tank 41 through the nozzle piston 432. The nozzle piston 432 outlet is equipped with a valve structure. When there is no external force, the valve is closed. The nozzle piston 432 needs to squeeze the water inside to open it. The one-way inlet valve 421 allows water to enter only into the buffer tank 41. When the nozzle piston 432 has finished squeezing, the piston rod 32 moves to the farthest distance and then returns. The nozzle piston 432 also moves in the opposite direction, thereby generating negative pressure to draw water from the water tank 11 through the connecting pipe 42 and the one-way inlet valve 421, refilling the buffer tank 41, and waiting for the next dust adsorption to spray and suppress dust.

[0032] The driven trigger 5 includes an upper driven frame 51, which is fixedly connected to the top surface of the piston rod 32. An actuating rod 511 is rotatably connected to the inner surface of the middle housing 1. A connecting groove 512 is provided on the outer surface of the actuating rod 511. A reverse movable seat 52 is slidably connected to the inner surface of the connecting groove 512. A driven linear rod 521 is fixedly connected to both ends of the reverse movable seat 52. A lower driven rod 53 is fixedly connected to the outer surface of the upper driven frame 51.

[0033] The actuating lever 511 is slidably connected to the inner surface of the upper driven frame 51, the connecting groove 512 is slidably connected to the outer surface of the upper driven frame 51, the driven linear lever 521 is slidably connected to the inner surface of the delay lever 43, the two ends of the compression spring 431 are fixedly connected to the driven linear lever 521 and the delay lever 43 respectively, and the lower driven lever 53 is slidably connected to the inner surface of the middle outer shell 1.

[0034] By setting the driven trigger 5, the reciprocating movement of the piston rod 32 drives the dust suppression nozzle 4, the dust suction baffle 6, and the recovery flap 7 to work in turn after reversing or delaying. During use, the upper driven frame 51 is fixed above the piston rod 32 and moves synchronously with the piston rod 32. The surface is provided with a protrusion that fits into the connecting groove 512 below the actuating rod 511, while the connecting groove 512 above the actuating rod 511 is fitted onto the reverse movable seat 52. The actuating lever 511 can rotate around the rotation center. When the upper driven frame 51 moves laterally, it will actuate the actuating lever 511 to rotate around the rotation center, thereby causing the upper reverse movable seat 52 to be actuated by the actuating lever 511. Since the reverse movable seat 52 and the upper driven frame 51 are located at opposite ends of the rotation center of the actuating lever 511 and move in opposite directions, the reverse movable seat 52 moves in opposite directions to the piston rod 32. The reverse movable seat 52 will drive the driven linear rods 521 on both sides to move laterally, thereby pushing the delay rod 43 to trigger the spray. Since it is opposite to the direction of the piston rod 32, the spray is generated when air is drawn on this side to suppress flour dust. The lower driven rod 53 is mounted on the upper driven frame 51 and moves with the piston rod 32 at the same speed and in the same direction.

[0035] The dust collection baffle 6 includes a baffle bracket 61, which is fixedly connected to the outer surface of the dust collection box 2. A connecting rod bracket 62 is fixedly connected to the outer surface of the inner shell 1. Two side baffles 63 are rotatably connected to the outer surface of the baffle bracket 61. Connecting rod connecting blocks 631 are fixedly connected to both ends of the two side baffles 63. Baffle connecting rods 64 are rotatably connected to the outer surface of the connecting rod connecting blocks 631. Symmetrically distributed connecting rod push blocks 641 are fixedly connected to the outer surface of the baffle connecting rods 64.

[0036] The two side baffles 63 are symmetrically distributed on both sides of the inner shell 1. The two ends of the baffle connecting rod 64 are rotatably connected to the connecting rod connecting blocks 631 on both sides, and the connecting rod push block 641 is in contact with the lower driven rod 53.

[0037] By setting up the suction baffle 6, the airflow direction is controlled to guide the gas discharged from the dust collection box 2 to the suction dust collection box 2 on the other side, so that more air enters the suction air inlet 31. During use, the two side baffles 63 are distributed outside the two side air inlets 31 to guide the gas flow. The two side baffles 63 can rotate on the baffle bracket 61. By controlling the rotation angle, the two side baffles 63 are close to the air inlet 31 on the side of the exhaust dust collection box 2. When the discharged gas comes into contact with the two side baffles 63, it will change its flow direction to the suction dust collection box 2 on the other side. The two side baffles 63 of the suction dust collection box 2 will be away from the air inlet 31 and will not come into contact with the two side baffles 63, thus increasing the suction range. By directing the exhaust back to the intake, it is equivalent to adding an auxiliary jet in the same direction in front of the intake. The jet speed is much higher than the surrounding air, and the turbulent vortex draws in the surrounding still air, thereby increasing the extra flow rate that is drawn in. This allows a large flow rate to be transported with a small flow rate, thereby expanding the effective intake range and adsorbing more flour dust. The two side baffles 63 at both ends are connected by a connecting rod connecting block 631 and a baffle connecting rod 64 to form a parallel four-bar structure. The two side baffles 63 are regarded as double cranks to achieve the effect of synchronous rotation. That is, when one side rotates, the other side will rotate synchronously. In the initial state, one side is closer to the other side and the other side is further away. At this time, it is only necessary to adjust the state of one side, and the other side will be adjusted synchronously. The baffle connecting rod 64 can move laterally with the support of the connecting rod bracket 62. During the reciprocating movement of the lower driven rod 53, it will push the connecting rod push block 641, causing the baffle connecting rod 64 to move laterally, which can drive the connecting rod connecting block 631 to rotate, and finally drive the baffles 63 on both sides to rotate to achieve the switching effect. The connecting rod push blocks 641 are located on both sides of the connecting rod bracket 62 and are far apart. The lower driven rod 53 needs to move to the farthest point to push the connecting rod push block 641. During the return process, the lower driven rod 53 needs to move to the other side to push the connecting rod push block 641 on the other side. In this way, the lower driven rod 53 will not push any connecting rod push block 641 during the middle movement, so that the baffles 63 on both sides maintain the current state. During the exhaust / intake process of the dust settling box 2, the state of the baffles 63 on both sides remains unchanged. When the dust settling box 2 is about to complete the exhaust / intake, the lower driven rod 53 contacts and pushes the connecting rod push block 641 on both sides, causing the baffles 63 on both sides to reverse. In this way, the angle of the baffles 63 on both sides has been adjusted in advance before the next exhaust / intake of the dust settling box 2.

[0038] The recycling flap 7 includes an L-shaped block 71, which is rotatably connected to the inner surface of the recycling box 21. A drop groove 711 is provided on the bottom surface of the dust collection box 2, and a transverse push rod 72 is slidably connected to the inner surface of the outer shell 1.

[0039] The L-shaped block 71 is slidably connected to the inner surface of the lower drop trough 711, the transverse push rod 72 is slidably connected to the bottom surface of the L-shaped block 71, and the transverse push rod 72 is in contact with the lower driven rod 53.

[0040] By setting up the recycling flap 7, the flour particles after dust suppression and compression are output to the dust suppression box 2. During use, the dust suppression box 2 has a drop trough 711 for connection with the recycling box 21, and the L-shaped block 71 rotates inside. The L-shaped block 71 can block the drop trough 711 by rotating, but it will be affected by gravity and flip downward. If the horizontal push rod 72 is not at the bottom at this time, the drop trough 711 opens. If it is at the bottom, the L-shaped block 71 is supported and cannot flip downward, and the drop trough 711 closes. During its movement, the lower driven rod 53 will contact and push the transverse push rod 72. Since the movable parts are on both sides, it will not have any effect when in the middle position. Thus, before the suction, the movement of the transverse push rod 72 during the previous exhaust will block the L-shaped block 71 so that it cannot fall down and block the dust settling box 2. Thus, during the suction, only the air inlet 31 can suck in air. After the suction is completed, the L-shaped block 71 opens. After squeezing the flour dust, the compressed flour dust will fall into the dust settling box 2 through the drop trough 711 for recycling.

[0041] The entire equipment completes the "suction-spray-pressure-exhaust-guide" cycle in one reciprocating cycle of piston rod 32, with both sides alternating without stopping, achieving efficient, continuous and safe dust suppression and recovery of flour.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 3As shown, the top view and front and rear side views of the entire device demonstrate the overall external structure of the device, with the two side baffles 63 covering the air intake interface 31. In this embodiment, as Figure 4 , Figure 5 The image shown is a front view of the entire device, but the side panels 63 have been removed to show the positions of the air intake ports 31, which are located on both sides. In this embodiment, as Figure 5 , Figure 6 As shown, Figure 5 This is an internal view of the upper part of the device, showing the positional relationship between the piston rod 32 and piston disc 321 and the intake port 31. Air intake and exhaust are achieved through the piston disc 321 and the intake port 31. Figure 6 This is an internal side view showing the structure, with the buffer box 41 positioned on top of the dust settling box 2 and extending into the interior for spraying. In this embodiment, as Figure 7 As shown, the reciprocating movement of the piston rod 32 and the piston disc 321 is achieved by the cam rod 34; In this embodiment, as Figure 8 , Figure 9 As shown, the positional relationship between the dust collection chamber 3 and the dust suppression nozzle 4 is shown. The interior of the dust suppression nozzle 4 is cut open and displayed, including the water storage area inside the buffer box 41, the nozzle piston 432 and the one-way nozzle 45. The nozzle direction is towards the inside of the dust collection chamber 2. A compression spring 431 is installed inside the delay rod 43 for storing force. Intermittent acceleration and stopping are achieved by the fixed magnet 44 and the movable magnet 441. In this embodiment, as Figure 10 As shown, the positional relationship and magnetic pole direction of the fixed magnet 44 and the movable magnet 441 are represented by solid and hollow, respectively, and are arranged in a Halebeck array. The strong magnetic surfaces face each other. The size of the movable magnet 441 is the same as the length of a complete Halebeck cycle on the fixed magnet 44. In this embodiment, as Figure 11 , Figure 12 , Figure 13 As shown, the upper driven frame 51 is fixed above the piston rod 32 and moves synchronously with the piston rod 32. The lower driven rod 53 is installed on the upper driven frame 51 and moves with the piston rod 32 at the same speed and in the same direction. The movable magnet 441 is installed inside the nozzle piston 432 and moves with it. The up and down movements are reversed by the actuating rod 511. The upper driven frame 51 has a groove for the actuating rod 511 to pass through when it rotates. The bottom of the water tank 11 has the same groove for the actuating rod 511 to pass through when it rotates. In this embodiment, as Figure 14 , Figure 15 , Figure 16As shown, during the movement of piston rod 32, nozzle piston 432 moves in the opposite direction to it, realizing the workflow of spraying when inhaling and pumping water when exhausting, and the two sides alternately perform the opposite workflow. In this embodiment, as Figure 17 As shown, after the dust collection box 2 is cut open, the positions of the piston plate 321 and the two side baffles 63 are displayed. At this time, the right side is about to start suction, and the two side baffles 63 on this side are moving away. The other side is about to start exhaust, and the two side baffles 63 are moving closer together. In this embodiment, as Figure 18 As shown, the two side baffles 63 and the baffle connecting rods 64 form a parallel four-bar structure. The two sides rotate synchronously, and when one side of the two side baffles 63 moves closer, the other side will inevitably move away. In this embodiment, as Figure 19 As shown, the lower driven rod 53 is used to actuate the connecting rod push block 641 and the transverse push rod 72; In this embodiment, as Figure 20 , Figure 21 As shown, the L-shaped block 71 can be rotated to block the falling groove 711, or rotated downwards to empty the falling groove 711; In this embodiment, as Figure 22 As shown, the rotation of the L-shaped block 71 is controlled by the horizontal push rod 72. The two ends of the horizontal push rod 72 are inclined surfaces, which will generate an upward force when pushing the L-shaped block 71.

[0043] A dust suppression device for a flour mill and its method of use include the following steps: S1, drive motor 35, cam rod 34, connecting slider 33, piston rod 32 reciprocate; piston rod 32 is equipped with "upper driven frame 51", which divides the movement into three paths through lever, reverse moving seat 52, and lower driven rod 53, respectively controlling spray, baffle and flap, to ensure that each action is strictly synchronized with the intake / exhaust rhythm; S2. When the piston rod 32 moves to the right, the left piston disc 321 moves away from the air inlet 31 to draw in air, drawing dust-laden air into the left dust collection box 2. During the air intake process, the piston rod 32 pushes the reverse movable seat 52 in the opposite direction to the piston via the driven trigger 5, causing the nozzle piston 432 in the air intake buffer box 41 to be started with a delay. The magnetic sticker and compression spring 431 first store force and then release it instantly, atomizing water into droplets at high speed and spraying them into the air intake dust collection box 2, causing the dust to become heavier and fall earlier. S3. The right piston valve 321 is close to the intake port 31 to exhaust the air and squeeze the dust that has been sucked in and sprayed with water to suppress the dust into a clump, increasing its volume and weight, making it easier to clean. S4. The lower driven rod 53 pushes the baffle connecting rod 64 at the end of the piston rod 32's stroke, causing the exhaust side baffle to close and the intake side baffle to open, guiding the high-speed airflow that is being drawn in to the intake port, forming "jet suction enhancement" and expanding the effective dust collection range. S5. The horizontal push rod 72 is pushed down by the driven rod 53 to the bottom of the L-shaped block 71, the flap closes, ensuring the compression area is sealed, the piston rod 32 reverses, the push rod leaves the L-shaped block 71, the flap swings down due to gravity, and the flour that has been pressed into granules falls into the recycling box 21 along the drop trough 711. Before the next cycle begins, the push rod enters the support position again, and the flap closes again.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for a flour mill, comprising an inner shell (1), wherein a water tank (11) is fixedly connected to the top surface of the inner shell (1), and dust suppression boxes (2) are fixedly connected to both sides of the inner shell (1), characterized in that: The outer surface of the dust collection box (2) is provided with a dust collection chamber (3) for alternating dust collection and compression. The top surface of the dust collection box (2) is provided with a dust collection nozzle (4) for increasing the weight of the inhaled dust spray. The inner surface of the middle shell (1) is provided with a driven trigger (5) for synchronizing the movement of each component. The outer surface of the dust collection box (2) is provided with a dust collection baffle (6) for guiding airflow to enhance the adsorption range. The bottom surface of the dust collection box (2) is provided with a recovery flap (7) for timed recovery of compressed dust.

2. The dust suppression equipment for a flour mill according to claim 1, characterized in that: The water tank (11) is fixedly connected to the outer surface of the water tank (12), and the bottom surface of the dust settling box (2) is fixedly connected to the recycling box (21). The dust settling box (2) and the recycling box (21) are symmetrically distributed on both sides of the inner shell (1).

3. The dust suppression equipment for a flour mill according to claim 2, characterized in that: The dust collection chamber (3) includes an air inlet (31), which is fixedly connected to the outer surface of the dust collection box (2) for dust collection and exhaust. The inner surface of the dust collection box (2) is slidably connected to a piston rod (32), and the two ends of the piston rod (32) are fixedly connected to piston flaps (321). By moving, air is squeezed out to exhaust or negative pressure is generated to adsorb dust. The outer surface of the piston rod (32) is fixedly connected to a connecting slider (33), and the inner surface of the connecting slider (33) is slidably connected to a cam rod (34). The connecting slider (33) moves back and forth by the contact between the protrusion inside the connecting slider (33) and the cam groove on the cam rod (34). The inner surface of the inner shell (1) is fixedly connected to a drive motor (35).

4. The dust suppression equipment for a flour mill according to claim 3, characterized in that: The dust suppression nozzle (4) includes a buffer box (41), which is fixedly connected to the top surface of the dust suppression box (2). A connecting pipe (42) is fixedly connected to the top surface of the buffer box (41). A one-way liquid inlet valve (421) is fixedly connected to the inner surface of the buffer box (41) to allow liquid to enter from the water tank (11). A one-way nozzle (45) is fixedly connected to the bottom surface of the buffer box (41) for spraying water mist only. A nozzle pipe (451) is fixedly connected to the inner surface of the buffer box (41).

5. A dust suppression device for a flour mill according to claim 4, characterized in that: A delay rod (43) is slidably connected to the inner surface of the buffer box (41). A compression spring (431) is fixedly connected to the inner surface of the delay rod (43). A nozzle piston (432) is fixedly connected to one end of the delay rod (43). A fixed magnet (44) is fixedly connected to the inner surface of the buffer box (41). A movable magnet (441) is fixedly connected to the top surface of the nozzle piston (432). The strong magnetic surfaces of the fixed magnet (44) and the movable magnet (441) face each other, and the length of the movable magnet (441) is the same as the length of a complete repeating unit of one NSN of the fixed magnet (44).

6. A dust suppression device for a flour mill according to claim 5, characterized in that: The driven trigger (5) includes an upper driven frame (51), which is fixedly connected to the top surface of the piston rod (32). The inner surface of the middle outer shell (1) is rotatably connected to a lever (511). The outer surface of the lever (511) is provided with a connecting groove (512) for sliding at the connection point to match arc-shaped movement and linear movement. The inner surface of the connecting groove (512) is slidably connected to a reverse moving seat (52). Both ends of the reverse moving seat (52) are fixedly connected to driven linear rods (521). The outer surface of the upper driven frame (51) is fixedly connected to a lower driven rod (53), which penetrates into the middle outer shell (1) and is slidably connected.

7. A dust suppression device for a flour mill according to claim 6, characterized in that: The dust suction baffle (6) includes a baffle bracket (61), which is fixedly connected to the outer surface of the dust settling box (2). A connecting rod bracket (62) is fixedly connected to the outer surface of the inner shell (1). Two side baffles (63) are rotatably connected to the outer surface of the baffle bracket (61). An inclined surface is opened on the inner side to guide the airflow direction. Connecting rod connecting blocks (631) are fixedly connected to both ends of the two side baffles (63). Baffle connecting rods (64) are rotatably connected to the outer surface of the connecting rod connecting blocks (631), forming a parallel four-bar structure with the two side baffles (63). Symmetrically distributed connecting rod push blocks (641) are fixedly connected to the outer surface of the baffle connecting rods (64).

8. A dust suppression device for a flour mill according to claim 7, characterized in that: The recycling flap (7) includes an L-shaped block (71), which is rotatably connected to the inner surface of the recycling box (21). The bottom surface of the dust collection box (2) is provided with a drop groove (711), and the inner surface of the outer shell (1) is slidably connected with a transverse push rod (72).

9. A dust suppression device for a flour mill and its method of use, comprising using the dust suppression device for a flour mill as described in any one of claims 1-8, characterized in that, The steps include: S1, the drive motor (35), cam rod (34), and connecting slider (33) control the reciprocating motion of the piston rod (32). The driven frame (51) is mounted on the piston rod (32). The motion is divided into three paths through the lever, the reverse moving seat (52), and the lower driven rod (53), which respectively control the spray, the baffle, and the flap, ensuring that each action is strictly synchronized with the suction / exhaust rhythm; S2, when the piston rod (32) moves to the right, the left piston valve (321) moves away from the air inlet (31) to draw in air, and draws the dust-laden air into the left dust collection box (2). The suction side performs During the suction process, the piston rod (32) pushes the reverse moving seat (52) in the opposite direction to the piston via the driven trigger (5), so that the nozzle piston (432) in the suction side buffer box (41) is delayed to start. The magnet and the compression spring (431) first store force and then release it instantly, atomizing water into droplets at high speed and spraying them into the suction side dust settling box (2), so that the dust increases in weight and falls down in advance; S3, the right piston petal (321) approaches the air inlet (31) to exhaust, and squeezes the dust that has been sucked in and sprayed with water to settle the dust into a clump, increasing its volume and weight, making it easier to clean; S4. The lower driven rod (53) pushes the baffle connecting rod (64) at the end of the piston rod (32) stroke, so that the exhaust side baffle closes and the suction side baffle opens, and guides the high-speed airflow that is being discharged to the intake port that is being sucked in, forming "jet suction" and expanding the effective dust collection range; S5. The horizontal push rod (72) is pushed to the bottom of the L-shaped block (71) by the lower driven rod (53), the flap closes, ensuring the compression area is sealed, the piston rod (32) reverses, the push rod leaves the L-shaped block (71), the flap swings down due to gravity, and the flour that has been pressed into granules falls into the recycling box (21) along the drop trough (711). Before the start of the next cycle, the push rod enters the support position again, and the flap closes again.

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