Dust control method for cement production

Abstract

The invention relates to the technical field of cement preparation, and discloses a dust control method for cement production, when cement raw materials are crushed, cement dust in air is filtered through a dust control system, a control filtering structure and a dust falling assembly in a dust treatment device, then the filtered cement dust is collected in a centralized manner, and the crushed cement raw materials are recycled. The dust treatment device comprises a drainage pipe and a dust control system, and a dust falling assembly is fixed to the top of the drainage pipe. According to the dust control method for cement production, air enters the drainage pipe through an exhaust fan and a servo motor, dust is filtered and removed through a movable filter plate and a filter plate, and atomization dust falling is conducted through an atomization nozzle; and meanwhile, the anode plate is adopted to perform electrostatic dust removal on air, the filtered cement dust is collected at the top of the water filtering bottom plate, and under the action of water flow, the cement dust contains moisture and is condensed into blocks, so that the cement dust filtering efficiency is improved, the cement dust is collected and recycled, and the cement production consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cement preparation, in particular to a dust control method for cement production. Background Art

[0002] Cement is a powdery hydraulic inorganic gelling material, which becomes a slurry after adding water and stirring. It can harden in the air or in water, and can firmly bond sand, stone and other materials together to form walls or buildings. The cement production process can generally be divided into raw material preparation, clinker calcination and cement grinding.

[0003] The preparation of raw cement usually involves mixing various cement raw materials and then crushing and grinding them to a certain particle size. Cement grinding involves grinding cement clinker to a more standard particle size through equipment such as roller presses or ball mills. Dust will be generated during the preparation of raw cement and cement grinding processes. The emission of dust will affect the air and cause environmental pollution. Therefore, dust treatment equipment is generally required in the cement production process.

[0004] The common cement dust control method on the market generally adopts bag dust collector. By installing bag dust collector in cement production equipment, dust-containing air is sucked into the dust collector through the dust control system, and the dust-containing air passes through one or more layers of filter bags. The filter bags filter the cement dust in the dust-containing air, and then use pulse blowing equipment to clean the filter bags, remove the dust from the surface of the filter bags into the ash hopper, and then transport and discharge the cement dust through the ash discharge device, so as to achieve the purpose of purifying the air.

[0005] However, although this dust control method can filter and purify dust in dusty air, the dust caused by cement production is different from conventional harmful dust. Cement dust is produced during the transportation or grinding of cement raw materials. It is still considered cement raw materials, but its form has changed from block to granular and mixed in the air. General dust collectors only purify and discharge cement dust, but do not reuse the collected dust, which will cause a large amount of cement dust resources to be wasted. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a dust control method for cement production, which solves the problems raised in the above-mentioned background technology.

[0007] The present invention provides the following technical solution: a dust control method for cement production, which is used for controlling dust in the cement production process, comprising the following steps:

[0008] S1: According to the weight of cement produced by construction requirements, select the corresponding proportion of cement raw materials, and mix the corresponding proportion of mixed materials. Through the transportation device, transport each cement raw material to the crushing device, and the crushing device performs preliminary mixing and crushing on the cement raw materials;

[0009] S2: When the cement raw materials are crushed, the dust control system in the dust treatment device is used to control the exhaust fan to start, so that the cement dust enters the dust treatment device. The dust control system is used to control the filter structure and dust reduction components in the dust treatment device to filter the cement dust in the air in the dust treatment device, and then the filtered cement dust is collected centrally;

[0010] S3: After the cement raw materials are crushed, the dust control system is used to suspend the operation of the exhaust fan, the filter structure and the dust reduction component, and then the dust treatment device is opened to take out the collected cement dust.

[0011] Optionally, the dust treatment device mentioned in S2 includes a drainage pipe and a dust control system, an exhaust fan is fixed to the outside of one side of the drainage pipe, the exhaust fan is controlled by the dust control system, a filter plate is fixed to the side of the drainage pipe close to the exhaust fan, an air inlet pipe is fixed to the end of the drainage pipe away from the exhaust fan, and a dust reduction component is fixed to the top of the drainage pipe, and the dust reduction component is used to concentrate cement dust;

[0012] The dust reduction assembly includes a top frame, the top frame is fixed to the top of the drainage pipe, a servo motor is fixed to the outside of the top frame, the servo motor is controlled by a dust control system, the output shaft of the servo motor passes through the top frame, and a lead screw is fixed to the outside of the servo motor output shaft, the external thread of the lead screw is connected to a movable filter plate, the movable filter plate is slidably connected to the drainage pipe, both sides of the surface of the movable filter plate are provided with entry and exit grooves, water storage chambers are provided inside the two sides of the top frame, an atomizing nozzle is fixed to the bottom of the water storage chamber, and the atomizing nozzle passes through the drainage pipe;

[0013] A material receiving box is fixed on one side of the bottom of the drainage pipe close to the exhaust fan, the drainage pipe and the material receiving box are communicated with each other, and a water filtering bottom plate is fixed inside the material receiving box.

[0014] Optionally, a limiting frame is fixed to the inner wall of the drainage tube close to the filter plate, the limiting frame is rotatably connected to a swivel inside, a rotating shaft is fixed inside the swivel, the rotating shaft is rotatably connected to the limiting frame, a cleaning plate is fixed to the end of the rotating shaft close to the filter plate, and the cleaning plate and the filter plate are abutted against each other, and a spiral shaft is fixed to the end of the rotating shaft away from the filter plate, and the spiral shaft is threadedly connected to the movable filter plate.

[0015] Optionally, a mounting frame is fixed to the outside of the rotating shaft on one side close to the filter plate, an anode plate is fixed to the outside of the mounting frame on one end away from the filter plate, and plastic top plates are fixed to the outside of both ends of the anode plate;

[0016] A first support plate is fixed to the outside of the end of the spiral shaft away from the exhaust fan, a first spring is fixed to the outside of the first support plate close to the servo motor, a first scraper is fixed to the outside of the first spring close to the servo motor, a second support plate is fixed to the outside of the end of the rotating shaft close to the spiral shaft, a second spring is fixed to the outside of the second support plate away from the plastic top plate, and a second scraper is fixed to the outside of the end of the second spring away from the second support plate.

[0017] Optionally, embedded grooves are provided inside both ends of the limiting frame, a third spring is fixed inside the embedded groove, a telescopic rod is fixed to one end of the third spring, and the telescopic rod is slidably connected to the embedded groove.

[0018] Optionally, a top rod is slidably connected to the interior of the water filtering bottom plate, and a floating plate is fixed to the bottom of the top rod.

[0019] Optionally, a seesaw is rotatably connected inside the material receiving box, and the bottom of the seesaw near the top rod is in contact with the top of the top rod, and the top of the seesaw near the top rod is in contact with the plastic top plate, a bottom rod is fixed to the bottom of the seesaw away from the top rod, a first extension rod is fixed to the side of the bottom rod away from the seesaw, and a first pressure rod is fixed to one end of the first extension rod away from the bottom rod;

[0020] A second extension rod is fixed to one side of the bottom of the bottom rod away from the seesaw, a second pressure rod is fixed to one end of the second extension rod away from the bottom rod, and a material-moving rod is fixed to the outside of the second pressure rod.

[0021] Optionally, a sealing door is hinged inside the material receiving box near the exhaust fan, an overflow pipe is fixed to the inner wall of the material receiving box below the water filter bottom plate, and a drain outlet is opened at the bottom of the inner wall of the material receiving box.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The dust control method for cement production first starts the exhaust fan and the servo motor through the dust control system, so that the dust-containing air enters the interior of the drainage pipe, is filtered and dusted through the mobile filter plate and the filter plate, and is atomized and dusted through the atomizing nozzle. At the same time, the dust-containing air is electrostatically removed by the anode plate, and the cement dust after the final filtration is collected on the top of the water filter bottom plate, and under the action of the water mist of the atomizing nozzle condensing into a water flow, the cement dust in the water filter bottom plate contains moisture, so that the cement dust is re-condensed from particles into blocks, which not only improves the efficiency of cement dust filtration, but also collects and reuses cement dust, and reduces the consumption of cement production.

[0024] 2. The dust control method for cement production drives a screw-driven movable filter plate to slide in the inner cavity of a drainage tube through a servo motor. During the sliding process, the movable filter plate drives the spiral shaft and the rotating shaft to rotate, and drives the first scraper to rotate through the spiral shaft, and the rotating shaft drives the second scraper and the anode plate to rotate. During the rotation process, the first scraper and the second scraper perform self-cleaning on the movable filter plate, and during the rotation process, the anode plate utilizes centrifugal force to throw off cement dust. At the same time, the anode plate drives the plastic top plate to contact the rocker and the telescopic rod to generate vibration, thereby enhancing the effect of cement dust separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0027] Figure 3 It is a structural cross-sectional view of the top rack of the present invention;

[0028] Figure 4 It is a structural cross-sectional view of the material receiving box and the drainage pipe of the present invention;

[0029] Figure 5 It is a schematic diagram of the positional relationship among the limiting frame, the rotating shaft, the spiral shaft and the cleaning plate of the present invention;

[0030] Figure 6 It is a structural cross-sectional view of the water filter bottom plate and the top rod of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the seesaw of the present invention;

[0032] Figure 8 It is a schematic diagram of the positional relationship among the rotating shaft, the second supporting plate and the anode plate of the present invention;

[0033] Fig. 9 It is a structural cross-sectional view of the limiting frame of the present invention.

[0034] In the figure: 1. drainage pipe; 11. exhaust fan; 12. filter plate; 13. air inlet pipe; 2. top rack; 21. servo motor; 22. lead screw; 23. movable filter plate; 24. inlet and outlet slot; 25. water storage chamber; 26. atomizing nozzle; 3. material collecting box; 31. water filter bottom plate; 32. sealing door; 33. overflow pipe; 34. drain outlet; 4. limit rack; 41. swivel; 42. rotating shaft; 43. cleaning plate; 44. spiral shaft; 5. mounting rack; 51 , anode plate; 52, plastic top plate; 53, first support plate; 54, first spring; 55, first scraper; 56, second support plate; 57, second spring; 58, second scraper; 59, cathode plate; 6, embedded groove; 61, third spring; 62, telescopic rod; 7, top rod; 71, floating plate; 8, seesaw; 81, bottom rod; 82, first extension rod; 83, first pressure rod; 84, second extension rod; 85, second pressure rod; 86, material removal rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1-9 A dust control method for cement production is used for controlling dust in the cement production process, comprising the following steps:

[0038] S1: According to the weight of cement produced by construction requirements, select the corresponding proportion of cement raw materials, and mix the corresponding proportion of mixed materials. Through the transportation device, transport each cement raw material to the crushing device, and the crushing device performs preliminary mixing and crushing on the cement raw materials;

[0039] S2: When the cement raw materials are crushed, the dust control system is used to control the exhaust fan to start, so that the cement dust enters the dust treatment device. The dust control system is used to control the filter structure and dust reduction components in the dust treatment device to filter the cement dust in the air in the dust treatment device, and then the filtered cement dust is collected centrally;

[0040] S3: After the cement raw materials are crushed, the dust control system is used to suspend the operation of the exhaust fan, the filter structure and the dust reduction component, and then the dust treatment device is opened to take out the collected cement dust;

[0041] The dust treatment device mentioned in S2 includes a drainage pipe 1 and a controller. An exhaust fan 11 is fixed to the outside of one side of the drainage pipe 1. The exhaust fan 11 is controlled by a dust control system. A filter plate 12 is fixed to the side of the drainage pipe 1 close to the exhaust fan 11. An air inlet pipe 13 is fixed to the end of the drainage pipe 1 away from the exhaust fan 11. A dust reduction component is fixed to the top of the drainage pipe 1. The dust reduction component is used to concentrate cement dust.

[0042] The dust suppression component includes a top frame 2, the top frame 2 is fixed to the top of the drainage pipe 1, a servo motor 21 is fixed to the outside of the top frame 2, the servo motor 21 is controlled by the dust control system, the output shaft of the servo motor 21 passes through the top frame 2, and a lead screw 22 is fixed to the outside of the output shaft of the servo motor 21, and a movable filter plate 23 is connected to the outer thread of the lead screw 22, the movable filter plate 23 is slidably connected to the drainage pipe 1, and inlet and outlet grooves 24 are provided on both sides of the surface of the movable filter plate 23, and water storage chambers 25 are provided inside the two sides of the top frame 2, and an atomizing nozzle 26 is fixed to the bottom of the water storage chamber 25, and the atomizing nozzle 26 passes through the drainage pipe 1;

[0043] A material receiving box 3 is fixed on one side of the bottom of the drainage pipe 1 close to the exhaust fan 11, the drainage pipe 1 and the material receiving box 3 are connected to each other, a water filtering bottom plate 31 is fixed inside the material receiving box 3, a sealing door 32 is hinged inside the material receiving box 3 close to the exhaust fan 11, an overflow pipe 33 is fixed on the inner wall of the material receiving box 3 below the water filtering bottom plate 31, and a drainage port 34 is opened at the bottom of the inner wall of the material receiving box 3;

[0044] During the specific operation, the exhaust fan 11 is started through the dust control system, so that the cement dust enters the interior of the drainage pipe 1 through 13. After entering the interior of the drainage pipe 1, the cement dust passes through the mobile filter plate 23, and the drainage pipe 1 is initially filtered by the mobile filter plate 23, so that part of the cement dust is intercepted on one side of the mobile filter plate 23. At the same time, the remaining cement dust moves toward the filter plate 12 under the action of the exhaust fan 11 until it contacts the filter plate 12 and is finally filtered by the filter plate 12. The cement dust finally filtered by the filter plate 12 falls into the interior of the material receiving box 3 and is collected on the top of the water filter bottom plate 31.

[0045] Specifically, after the cement dust passes through the movable filter plate 23, it moves along the drainage pipe 1 toward the filter plate 12. During the movement of the cement dust, the dust control system controls the atomizing nozzle 26, so that the clean water stored in the water storage chamber 25 is sprayed into the interior of the drainage pipe 1 through the atomizing nozzle 26, so that the clean water is sprayed like a mist onto the cement dust, and then the cement dust is captured by the water mist and falls to the bottom of the inner cavity of the drainage pipe 1;

[0046] The remaining cement dust that has penetrated the water mist continues to move toward the filter plate 12 and is finally filtered by the filter plate 12. The cement dust accumulated at the bottom of the inner cavity of the drainage pipe 1 is re-condensed into water droplets at the bottom of the inner cavity of the drainage pipe 1 as the atomizing nozzle 26 continues to spray, until a water flow is formed. Then the water flow carries the cement dust along the drainage pipe 1 toward the material receiving box 3 until the water flow drives the cement dust to fall to the bottom of the water filter bottom plate 31 and is intercepted by the water filter bottom plate 31. The dust in the water flow is filtered and intercepted at the bottom of the water filter bottom plate 31, and the water flow passes through the water filter bottom plate 31 and falls to the bottom of the inner cavity of the material receiving box 3 and continues to accumulate.

[0047] Furthermore, when the atomizing nozzle 26 is started and begins to capture cement dust for atomization and dust reduction, the servo motor 21 can be started simultaneously through the dust control system, and the servo motor 21 drives the lead screw 22 to rotate, and the lead screw 22 drives the movable filter plate 23 to move back and forth inside the drainage pipe 1 along the drainage pipe 1. During the reciprocating movement of the movable filter plate 23, the speed of air flowing inside the drainage pipe 1 is slowed down, and the time for the air to be contacted with the water mist of the atomizing nozzle 26 is prolonged, and the effect of atomization and dust reduction is enhanced, thereby improving the efficiency of cement dust capture;

[0048] At the same time, during the reciprocating movement of the mobile filter plate 23, the cement dust accumulated at the bottom of the inner cavity of the drainage pipe 1 can be pushed, which accelerates the time for the dust at the bottom of the inner cavity of the drainage pipe 1 to enter the material collecting box 3, thereby improving the efficiency of collecting dust in the material collecting box 3. In addition, during the movement of the mobile filter plate 23, the cement dust adhered to the inner wall of the drainage pipe 1 can be scraped off synchronously, thereby increasing the collection amount of cement dust, avoiding the waste of cement dust, and improving the efficiency of cement dust recycling.

[0049] Furthermore, when the mobile filter plate 23 reciprocates, it passes through the atomizing nozzle 26 under the action of the water storage chamber 25. When the mobile filter plate 23 passes under the atomizing nozzle 26, the water mist sprayed by the atomizing nozzle 26 is blocked by the mobile filter plate 23 and splashed, thereby increasing the range of water mist diffusion, and then increasing the range of water mist capture, thereby further improving the effect of atomization dust reduction;

[0050] At the same time, when the mobile filter plate 23 passes under the atomizing nozzle 26, the water mist sprayed by the atomizing nozzle 26 can clean the mobile filter plate 23, thereby playing a role in unblocking the mobile filter plate 23, avoiding the mobile filter plate 23 from being blocked by cement dust, and thus improving the dust filtering effect of the mobile filter plate 23.

[0051] It should be noted that the flow rate of the spray from the atomizing nozzle 26 can be adjusted through the dust control system, and a water inlet pipe is provided on the top of the top frame 2, which can be used to replenish the clean water in the water storage chamber 25. At the same time, under the action of the water filtering bottom plate 31, part of the dust in the water flow is filtered, and the water flow entering the collecting box 3 has completed the preliminary filtration. The water flow after the preliminary filtration can be discharged through the drain port 34, and after subsequent purification, it will continue to be replenished to the inside of the water storage chamber 25 with circulating water for subsequent atomization dust reduction, and the dust control system is composed of a microcomputer and a controller.

[0052] Embodiment 2:

[0053] A limiting frame 4 is fixed to the inner wall of the drainage tube 1 on the side close to the filter plate 12, a rotating ring 41 is rotatably connected inside the limiting frame 4, a rotating shaft 42 is fixed inside the rotating ring 41, the rotating shaft 42 is rotatably connected to the limiting frame 4, a cleaning plate 43 is fixed to the end of the rotating shaft 42 close to the filter plate 12, and the cleaning plate 43 and the filter plate 12 are against each other, a spiral shaft 44 is fixed to the end of the rotating shaft 42 away from the filter plate 12, and the spiral shaft 44 is threadedly connected to the movable filter plate 23, a mounting frame 5 is fixed to the outside of the rotating shaft 42 close to the filter plate 12, an anode plate 51 is fixed to the outside of the mounting frame 5 away from the filter plate 12, and plastic top plates 52 are fixed to the outside of both ends of the anode plate 51;

[0054] A first support plate 53 is fixed to the outside of the end of the spiral shaft 44 away from the exhaust fan 11, a first spring 54 is fixed to the outside of the first support plate 53 close to the servo motor 21, a first scraper 55 is fixed to the outside of the first spring 54 close to the servo motor 21, a second support plate 56 is fixed to the outside of the end of the rotating shaft 42 close to the spiral shaft 44, a second spring 57 is fixed to the outside of the second support plate 56 away from the plastic top plate 52, a second scraper 58 is fixed to the outside of the second spring 57 away from the second support plate 56, both ends of the limiting frame 4 are provided with embedded grooves 6, a third spring 61 is fixed to the inside of the embedded groove 6, one end of the third spring 61 is fixed to a telescopic rod 62, and the telescopic rod 62 is slidably connected to the embedded groove 6;

[0055] During the specific operation, based on the first embodiment, the cement dust is firstly filtered through the mobile filter plate 23, and then atomized and captured by the water mist of the atomizing nozzle 26. In the process of the cement dust passing through the mobile filter plate 23 and moving toward the filter plate 12, the anode plate 51 and the cathode plate 59 can be started by the dust control system, so that the cement dust is charged after passing through the cathode plate 59. When the charged dust moves toward the anode plate 51, it can be captured by the anode plate 51, so that the cement dust is adsorbed and dusted by the anode plate 51 again before being finally filtered by the filter plate 12. Then, the cement dust passing through the anode plate 51 is finally filtered by the filter plate 12, thereby further improving the efficiency of cement dust capture.

[0056] Furthermore, since the movable filter plate 23 is slidably connected to the inner cavity of the drainage tube 1, and the movable filter plate 23 is threadedly connected to the spiral shaft 44, when the servo motor 21 is started, the servo motor 21 drives the lead screw 22 to drive the movable filter plate 23 to slide in the inner cavity of the drainage tube 1, and since the spiral shaft 44 and the rotating shaft 42 are limited by the limiting frame 4, when the movable filter plate 23 moves toward the filter plate 12 along the direction of the drainage tube 1, the spiral shaft 44 is driven by the movable filter plate 23 to rotate, and during the rotation process, the spiral shaft 44 drives the rotating shaft 42 to rotate synchronously, and the rotating shaft 42 drives the cleaning plate 43 to rotate synchronously, and during the rotation process, the cleaning plate 43 cleans and scrapes the filter plate 12, thereby improving the effect of the filter plate 12 in filtering cement dust;

[0057] At the same time, during the rotation of the spiral shaft 44, the first support plate 53 is driven to rotate, the first support plate 53 drives the first spring 54 to rotate, the first spring 54 drives the first scraper 55 to rotate, and during the rotation of the shaft 42, the second support plate 56 is also driven to rotate, the second support plate 56 drives the second spring 57 to rotate, and the second spring 57 drives the second scraper 58 to rotate, that is, during the movement of the mobile filter plate 23 inside the drainage pipe 1, the cleaning plate 43, the first scraper 55 and the second scraper 58 are driven to rotate synchronously respectively;

[0058] Furthermore, during the movement of the mobile filter plate 23 in the inner cavity of the drainage tube 1, when the mobile filter plate 23 moves toward the filter plate 12, the mobile filter plate 23 gradually approaches the second scraper 58 until the mobile filter plate 23 contacts the second scraper 58. At this time, the mobile filter plate 23 is controlled to continue to move, and then the second scraper 58 rotates in a state of being in contact with the mobile filter plate 23, and then the second scraper 58 cleans one side of the mobile filter plate 23, thereby further improving the self-cleaning effect of the mobile filter plate 23 and enhancing the effect of filtering cement dust.

[0059] On the contrary, when the mobile filter plate 23 moves toward the air intake pipe 13, the mobile filter plate 23 gradually approaches the first scraper 55 until the other side of the mobile filter plate 23 contacts the first scraper 55, and as the mobile filter plate 23 continues to move toward the air intake pipe 13, the first scraper 55 is attached to the surface of the mobile filter plate 23 and rotates, so that the first scraper 55 cleans the other side of the mobile filter plate 23, further improving the self-cleaning effect of the mobile filter plate 23 and enhancing the filtering effect of cement dust;

[0060] Additionally, during the rotation of the rotating shaft 42, it drives the mounting frame 5 and the anode plate 51 to rotate synchronously, and the anode plate 51 drives the plastic top plate 52 to rotate synchronously. When the anode plate 51 rotates, it increases the speed of contact with cement dust in the air, and also increases the range of capturing cement dust, thereby further enhancing the effect of capturing dust.

[0061] It should be noted that an arc-shaped notch is provided at the bottom of the movable filter plate 23, and the notch here is used to match the cathode plate 59, thereby ensuring the smooth movement of the movable filter plate 23 in the inner cavity of the drainage tube 1. The function of the first spring 54 and the second spring 57 is to shorten the distance between the first scraper 55 and the second scraper 58 and the movable filter plate 23, thereby ensuring that the first scraper 55 and the second scraper 58 can maintain a rotating state before the movable filter plate 23 stops moving, thereby reserving sufficient time for the cleaning of the movable filter plate 23. After the cement dust in the air is finally filtered by the filter plate 12, it can be directly discharged to the outside through the exhaust pipe at the top of the drainage tube 1.

[0062] Embodiment three:

[0063] The interior of the water filtering bottom plate 31 is slidably connected with a top rod 7, a floating plate 71 is fixed to the bottom of the top rod 7, a seesaw 8 is rotatably connected to the interior of the material receiving box 3, and the bottom of the seesaw 8 close to the top rod 7 contacts the top of the top rod 7, the top of the seesaw 8 close to the top rod 7 contacts the plastic top plate 52, a bottom rod 81 is fixed to the bottom of the seesaw 8 away from the top rod 7, a first extension rod 82 is fixed to the side of the bottom rod 81 away from the seesaw 8, and a first pressing rod 83 is fixed to the end of the first extension rod 82 away from the bottom rod 81;

[0064] A second extension rod 84 is fixed to the bottom of the bottom rod 81 at one side away from the seesaw 8, a second pressure rod 85 is fixed to one end of the second extension rod 84 away from the bottom rod 81, and a material-moving rod 86 is fixed to the outside of the second pressure rod 85;

[0065] During the specific operation, the cement filtered and dusted in the inner cavity of the drainage pipe 1 falls to the top of the water filter bottom plate 31 under the scraping of the mobile filter plate 23, and the remaining cement dust also falls to the top of the water filter bottom plate 31 under the interception of the filter plate 12. On the basis of the second embodiment, the mobile filter plate 23 drives the spiral shaft 44 and the rotating shaft 42 to rotate during the movement, and the rotating shaft 42 drives the mounting frame 5 and the anode plate 51 to rotate during the rotation, and the anode plate 51 drives the plastic top plate 52 to rotate synchronously;

[0066] During the rotation of the plastic top plate 52, the distance between the plastic top plate 52 and the seesaw 8 changes from far to near and then from near to far, that is, during the rotation, the plastic top plate 52 gradually approaches the seesaw 8 until it contacts the seesaw 8. When the plastic top plate 52 contacts the seesaw 8, the seesaw 8 is driven to flip. During the flipping process, the seesaw 8 drives the bottom rod 81, the first extension rod 82 and the second extension rod 84 to flip synchronously. During the flipping process, the first extension rod 82 drives the first pressure rod 83 to flip synchronously. During the flipping process, the second extension rod 84 drives the second pressure rod 85 to flip synchronously, and the second pressure rod 85 drives the material-moving rod 86 to flip synchronously.

[0067] When cement dust falls from the inner cavity of the drainage pipe 1 to the top of the water filter bottom plate 31, most of the cement dust is concentrated on one side of the material removal rod 86. Therefore, when the first pressure rod 83, the second pressure rod 85 and the material removal rod 86 are turned over, the accumulated cement dust can be turned over, thereby avoiding the cement dust from unilateral accumulation and increasing the total amount of cement dust collected by the water filter bottom plate 31.

[0068] Furthermore, when the cement dust and water flow in the inner cavity of the drainage pipe 1 fall into the material collecting box 3, the cement dust is intercepted at the top of the water filtering bottom plate 31, while the water flow passes through the water filtering bottom plate 31 and gathers at the bottom of the inner cavity of the material collecting box 3. When the water level at the bottom of the inner cavity of the material collecting box 3 gradually rises, the floating plate 71 can be driven to float, and then the floating plate 71 drives the top rod 7 to slide up and down inside the water filtering bottom plate 31. As the water level gradually rises, the floating plate 71 drives the top rod 7 to float higher, so that the distance between the top rod 7 and the seesaw 8 gradually approaches;

[0069] When cement dust accumulates on the top of the water filter bottom plate 31, the resistance of the seesaw 8 to flip and reset will increase, thereby shortening the distance between the plastic top plate 52 and the seesaw 8, thereby reducing the thrust of the plastic top plate 52 on the seesaw 8. Therefore, when the top rod 7 gradually floats up, the top rod 7 contacts the seesaw 8, and under the action of buoyancy, the seesaw 8 is driven to reset, and the initial distance between the seesaw 8 and the plastic top plate 52 is restored, ensuring that the plastic top plate 52 has enough space to push the seesaw 8 to flip the cement dust.

[0070] At the same time, when the plastic top plate 52 contacts the seesaw 8, the plastic top plate 52 vibrates, driving the anode plate 51 to rotate synchronously, that is, the anode plate 51 can absorb cement dust when working normally, and after stopping working, under the influence of gravity and rotational centrifugal force, the anode plate 51 throws the cement dust outside it to the top of the water filter bottom plate 31. At the same time, under the vibration of the plastic top plate 52, the anode plate 51 vibrates, which accelerates the speed and efficiency of cement dust detaching from the surface of the anode plate 51, and improves the efficiency of subsequent electrostatic dust removal. The plastic top plate 52 is made of flexible material, so it plays a role in protecting the anode plate 51 during the vibration process to prevent the anode plate 51 from being damaged;

[0071] Furthermore, when the anode plate 51 is rotating, the plastic top plates 52 at both ends thereof are in contact with the telescopic rod 62 respectively, and when the plastic top plate 52 is in contact with the telescopic rod 62, the plastic top plate 52 will also drive the anode plate 51 to vibrate, further improving the efficiency of the anode plate 51 in shaking off cement dust after power failure. At the same time, after the telescopic rod 62 is in contact with the plastic top plate 52, it can be retracted into the inner groove 6 until the anode plate 51 continues to rotate away from the inner groove 6, and the telescopic rod 62 is reset under the reset action of the third spring 61, ensuring the sustainable and regular vibration of the plastic top plate 52.

[0072] The cement dust separated from the surface of the anode plate 51 will eventually be collected on the top of the water filter bottom plate 31. When all the cement dust is filtered and captured, it will fall on the top of the water filter bottom plate 31. Since there is a continuous flow of water in the inner cavity of the drainage tube 1 into the interior of the collecting box 3, the water will then filter the cement dust on the top of the water filter bottom plate 31. As a result, the cement dust that was not originally captured by the water mist contains moisture. The cement dust is produced from cement raw materials. After encountering water, the cement dust on the top of the water filter bottom plate 31 will re-condense from particles to blocks. Therefore, when the cement dust is captured, the sealing door 32 can be opened to reuse the cement dust in blocks, that is, the cement raw materials.

[0073] It should be noted that the seesaw 8 is rotatably connected to the inside of the material receiving box 3, and the initial state of the seesaw 8 is an inclined state. The seesaw 8 at one end away from the exhaust fan 11 is inclined downward, while the seesaw 8 at one end close to the exhaust fan 11 is inclined upward. The drain port 34 is in a closed state when controlling cement dust. When the present invention is in working state, water is discharged to the outside only through the overflow pipe 33, so as to ensure that the float 71 has sufficient buoyancy.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust control method for cement production, used for controlling dust in cement production process, characterized by: The following steps are involved: S1: According to the weight of cement produced by construction requirements, select the corresponding proportion of cement raw materials, and mix the corresponding proportion of mixed materials. Through the transportation device, transport each cement raw material to the crushing device, and the crushing device performs preliminary mixing and crushing on the cement raw materials; S2: When the cement raw materials are crushed, the dust control system in the dust treatment device is used to control the exhaust fan to start, so that the cement dust enters the dust treatment device. The dust control system is used to control the filter structure and dust reduction components in the dust treatment device to filter the cement dust in the air in the dust treatment device, and then the filtered cement dust is collected centrally; S3: After the cement raw materials are crushed, the dust control system is used to suspend the operation of the exhaust fan, the filter structure and the dust reduction component, and then the dust treatment device is opened to take out the collected cement dust.

2. A dust control method for cement production according to claim 1, characterized in that: The dust treatment device described in S2 comprises a drainage pipe (1) and a dust control system, wherein an exhaust fan (11) is fixed to the outside of one side of the drainage pipe (1), and the exhaust fan (11) is controlled by the dust control system, a filter plate (12) is fixed to the inside of the drainage pipe (1) on the side close to the exhaust fan (11), an air inlet pipe (13) is fixed to the end of the drainage pipe (1) away from the exhaust fan (11), and a dust reduction component is fixed to the top of the drainage pipe (1), and the dust reduction component is used to collect cement dust; The dust reduction component comprises a top frame (2), the top frame (2) is fixed to the top of the drainage pipe (1), a servo motor (21) is fixed to the outside of the top frame (2), the servo motor (21) is controlled by a dust control system, the output shaft of the servo motor (21) passes through the top frame (2), and a lead screw (22) is fixed to the outside of the output shaft of the servo motor (21), the external thread of the lead screw (22) is connected to a movable filter plate (23), the movable filter plate (23) is slidably connected to the drainage pipe (1), both sides of the surface of the movable filter plate (23) are provided with entry and exit grooves (24), the inside of both sides of the top frame (2) is provided with a water storage chamber (25), the bottom of the water storage chamber (25) is fixed with an atomizing nozzle (26), and the atomizing nozzle (26) passes through the drainage pipe (1); A material receiving box (3) is fixed to one side of the bottom of the drainage pipe (1) close to the exhaust fan (11); the drainage pipe (1) and the material receiving box (3) are connected to each other; and a water filtering bottom plate (31) is fixed inside the material receiving box (3).

3. A dust control method for cement production according to claim 2, characterized in that: A limiting frame (4) is fixed to the inner wall of the drainage pipe (1) on one side close to the filter plate (12); a rotating ring (41) is rotatably connected to the inside of the limiting frame (4); a rotating shaft (42) is fixed to the inside of the rotating ring (41); the rotating shaft (42) is rotatably connected to the limiting frame (4); a cleaning plate (43) is fixed to one end of the rotating shaft (42) close to the filter plate (12), and the cleaning plate (43) and the filter plate (12) are in contact with each other; a spiral shaft (44) is fixed to one end of the rotating shaft (42) away from the filter plate (12), and the spiral shaft (44) is threadedly connected to the movable filter plate (23).

4. A dust control method for cement production according to claim 3, characterized in that: A mounting frame (5) is fixed to the outside of the rotating shaft (42) on one side close to the filter plate (12), an anode plate (51) is fixed to the outside of one end of the mounting frame (5) away from the filter plate (12), and plastic top plates (52) are fixed to the outside of both ends of the anode plate (51); A first support plate (53) is fixed to the outside of the end of the spiral shaft (44) away from the exhaust fan (11), a first spring (54) is fixed to the outside of the first support plate (53) close to the servo motor (21), a first scraper (55) is fixed to the outside of the end of the first spring (54) close to the servo motor (21), a second support plate (56) is fixed to the outside of the end of the rotating shaft (42) close to the spiral shaft (44), a second spring (57) is fixed to the outside of the second support plate (56) away from the plastic top plate (52), and a second scraper (58) is fixed to the outside of the end of the second spring (57) away from the second support plate (56).

5. A dust control method for cement production according to claim 4, characterized in that: An embedded groove (6) is provided inside both ends of the limit frame (4), a third spring (61) is fixed inside the embedded groove (6), a telescopic rod (62) is fixed to one end of the third spring (61), and the telescopic rod (62) is slidably connected to the embedded groove (6).

6. A dust control method for cement production according to claim 5, characterized in that: A top rod (7) is slidably connected inside the water filtering bottom plate (31), and a floating plate (71) is fixed at the bottom of the top rod (7).

7. A dust control method for cement production according to claim 6, characterized in that: The inside of the material receiving box (3) is rotatably connected with a seesaw (8), and the bottom of the seesaw (8) close to the top rod (7) contacts the top of the top rod (7), and the top of the seesaw (8) close to the top rod (7) contacts the plastic top plate (52). The bottom of the seesaw (8) away from the top rod (7) is fixed with a bottom rod (81), and the side of the bottom rod (81) away from the seesaw (8) is fixed with a first extension rod (82), and the end of the first extension rod (82) away from the bottom rod (81) is fixed with a first pressure rod (83); A second extension rod (84) is fixed to the side of the bottom of the bottom rod (81) away from the seesaw (8), a second pressure rod (85) is fixed to the end of the second extension rod (84) away from the bottom rod (81), and a material removal rod (86) is fixed to the outside of the second pressure rod (85).

8. A dust control method for cement production according to claim 7, characterized in that: A sealing door (32) is hingedly connected to the inside of the material receiving box (3) on the side close to the exhaust fan (11), an overflow pipe (33) is fixed to the inner wall of the material receiving box (3) below the water filtering bottom plate (31), and a drainage outlet (34) is provided at the bottom of the inner wall of the material receiving box (3).

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