Intelligent dust removal device and method for premixed concrete production

Abstract

The invention relates to the technical field of dust removal, in particular to an intelligent dust removal device and method for premixed concrete production.The intelligent dust removal device comprises a dust removal tank and a conical filter cylinder arranged in the dust removal tank and used for removing dust, a plurality of filter bags are fixedly connected to the interior of the conical filter cylinder, and a waste gas inlet pipe allowing waste gas to be guided in is connected to one side of the dust removal tank; the dust removal device further comprises a lifting guide plate which is fixedly connected to the interior of the dust removal tank, located below the waste gas inlet pipe and used for receiving waste gas, a plurality of lifting assemblies used for spraying gas are arranged at the top of the lifting guide plate, and the lifting assemblies are used for exciting dust to move upwards to be filtered through the filter bags. A dust collection assembly for sharing the filter load of the filter bag is arranged in the dust supporting backflow plate; and the branch pipe is fixedly connected to the interior of the dust removal tank, one end of the branch pipe is connected with a pulse assembly capable of cleaning the filter bag, and a dust collection box matched with the pulse assembly and used for collecting dust is arranged below the conical filter cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust removal, in particular to an intelligent dust removal device and method for pre-mixed concrete production. BACKGROUND

[0002] As an indispensable basic material in the field of modern construction, pre-mixed concrete plays a key role in many fields such as infrastructure construction, real estate development, and industrial construction. In recent years, with the acceleration of urbanization process and the continuous promotion of large-scale infrastructure construction in China, the pre-mixed concrete industry has shown a vigorous development trend. According to relevant statistical data, the output of pre-mixed concrete has been steadily increasing year by year, and the market size has been expanding. It has become one of the important pillar industries in the construction industry. The production process of pre-mixed concrete involves multiple links, and each link may produce dust. In the raw material storage link, when powdery materials such as cement and fly ash are stored in the silo, if the sealing performance of the silo is poor, a large amount of dust will be generated under the action of material entering and exiting and wind. During the conveying process, the use of screw conveyors, pneumatic conveyors and other equipment to convey powdery materials to the mixer will also cause dust to fly due to material leakage and air flow disturbance. The aggregate handling link cannot be ignored, and sand, stone and other aggregates will generate a large amount of dust during unloading, screening and conveying due to the collision, friction between materials and contact with equipment, especially in open-air storage or simple closed yards, dust pollution is more serious.

[0003] For example, the patent document with the publication number CN214389351U relates to a dust removal device for producing pre-mixed concrete, which belongs to the technical field of concrete production. It includes a shell, an adsorption assembly, and a backflushing assembly. The adsorption assembly is installed on the shell. The shell includes an air inlet, an air outlet, and a collection hopper installed on the shell. The backflushing assembly includes a pulse solenoid valve. The adsorption assembly includes a plastic-burning pipe and a sleeve that is sleeved on the plastic-burning pipe. One end of the sleeve is open, and the gas in the shell can enter the gap between the plastic-burning pipe and the sleeve through the side wall of the sleeve. This patent document solves the problem of concrete dust on the plastic-burning plate easily overflowing into the dust removal chamber during backflushing and escaping into the external environment with the air flow, reducing environmental pollution.

[0004] The prior art realizes periodic cleaning of dust on the surface of the adsorption assembly by setting the back-blowing assembly to maintain the air permeability of the adsorption assembly. However, in actual operation, as the dusting process continues, the amount of dust accumulated on the surface of the adsorption assembly gradually increases, causing the system pressure difference to rise, triggering a significant increase in the back-blowing frequency. Frequent back-blowing operations generate high-pressure airflow pulses in the opposite direction of the main exhaust gas flow, forming strong reverse disturbances that seriously interfere with or even temporarily block the continuity of the normal dust removal airflow. The dynamic conflict between the reverse airflow and the main airflow not only causes vortexes, short circuits, or stagnation of exhaust gas in the filter chamber, but also causes some dust that has been stably attached to be re-raised, resulting in “secondary dust raising” and reducing the overall filtration efficiency. At the same time, high-frequency back-blowing causes the system to be in an unstable cycle of “dust removal-dust accumulation-dust removal again”, shortening the effective filtration time and forcing the exhaust gas flow through the filter material per unit time to decrease. Therefore, the present application proposes an intelligent dust removal device and method for ready-mixed concrete production. SUMMARY

[0005] The present application aims to provide an intelligent dust removal device and method for ready-mixed concrete production to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: an intelligent dust removal device for ready-mixed concrete production, comprising a dust removal tank and a conical filter cartridge arranged inside the dust removal tank for dust removal, and a plurality of filter bags are fixedly connected inside the conical filter cartridge, one side of the dust removal tank is connected with an exhaust gas inlet pipe for guiding exhaust gas into the dust removal tank, and further comprising: a lifting guide plate fixedly connected inside the dust removal tank and located below the exhaust gas inlet pipe for receiving exhaust gas, and a plurality of lifting assemblies for blowing air are arranged on the top of the lifting guide plate, the lifting assemblies are used to raise the dust upward to pass through the filter bags for filtration, a dust holding backflow plate is fixedly connected inside the dust removal tank, and a dust suction assembly for sharing the filtration load of the filter bags is arranged inside the dust holding backflow plate; a distribution pipe fixedly connected inside the dust removal tank, one end of the distribution pipe is connected with a pulse assembly for cleaning the filter bags, a dust collection box is arranged below the conical filter cartridge and is adapted to the pulse assembly for collecting dust, and a cleaning assembly is arranged on the inner wall of the dust removal tank to drive the conical filter cartridge to rotate and cooperate with the pulse assembly to clean the plurality of filter bags comprehensively.

[0007] Preferably, the lifting assembly comprises a plurality of lifting air outlets arranged on the top of the lifting guide plate, a centrifugal pump is fixedly connected to the surface of the dust removal tank, the output end of the centrifugal pump is connected with a gas conveying pipe, and the gas conveying pipe is connected with the lifting guide plate to convey gas into the inside of the lifting guide plate.

[0008] Preferably, the dust suction assembly comprises a dust blocking plate fixedly connected to the top of the dust holding return plate, a plurality of dust holding holes are formed in the interior of the dust holding return plate, the surface of the gas conveying pipe is connected with a gas distribution pipe, the gas distribution pipe is connected with the dust holding return plate, and the dust holding return plate is connected with a plurality of blowing pipes located below the dust holding holes.

[0009] Preferably, the pulse assembly comprises a sliding rod connected to one end of the branch pipe, the sliding rod is communicated with the gas conveying pipe, the outer surface of the branch pipe is fixedly connected with a support frame, one end of the dust collecting box is fixedly connected with a dust falling pipe, the bottom of the dust falling pipe is fixedly connected with a discharge port, one end of the branch pipe is connected with a pulse flow distribution plate, and the bottom of the pulse flow distribution plate is connected with a plurality of punches facing the conical filter cartridge.

[0010] Preferably, the cleaning assembly comprises a idler wheel rotationally connected to the inner wall of the dust removal tank, the inner wall of the dust removal tank is rotationally connected with a gear ring engaged with the idler wheel, the outer surface of the conical filter cartridge is fixedly connected with a support frame, and the inner portion of the support frame is fixedly connected with a plurality of sliding rods slidingly connected with the gear ring.

[0011] Preferably, one side of the dust removal tank is fixedly connected with a side frame, the side frame is rotationally connected with a driving gear engaged with the idler wheel, and the top of the side frame is fixedly connected with a driving motor for driving the driving gear to rotate.

[0012] Preferably, the inner portion of the dust removal tank is fixedly connected with a plurality of top wheels, the inner portion of the support frame is fixedly connected with a plurality of ball bearings matched with the top wheels, and the outer surface of the sliding rod is sleeved with a sleeve spring for self-resetting.

[0013] Preferably, the top of the dust removal tank is provided with a clean gas discharge port, the bottom of the dust removal tank is provided with a recovery hopper, the top of the waste gas inlet pipe is fixedly connected with a connecting narrow port, the inner portion of the connecting narrow port is spirally provided with a spiral guide plate, and the bottom of the waste gas inlet pipe is fixedly connected with an electrostatic generator.

[0014] Preferably, the inner portion of the dust removal tank is fixedly connected with a plurality of top wheels, the inner portion of the support frame is fixedly connected with a plurality of ball bearings matched with the top wheels, and the outer surface of the sliding rod is sleeved with a sleeve spring for self-resetting.

[0015] The application also provides an intelligent dust removal method for pre-mixed concrete production, comprising the following steps: S1, the waste gas enters the dust removal tank through the waste gas inlet pipe; S2, simultaneously open the lifting assembly to run, the exhaust gas is lifted through the multiple filter bags, part of the dust is blocked and adsorbed by the filter bag, and the remaining dust falls to the surface of the dust holding backflow plate under the push of the gas, and then the dust suction assembly runs to share the load of the filter bag; S3, the filter bag is cleaned by the pulse assembly, so that the impurities attached to the surface of the filter bag are flushed into the dust collecting box, and the cleaning assembly is opened to drive the conical filter drum to rotate slowly, thereby changing the position of the multiple filter bags.

[0016] Compared with the prior art, the beneficial effects of the present application are: 1. Through the three-stage synergistic pretreatment mechanism of cyclone separation, electrostatic agglomeration and pneumatic disturbance, most of the dust in the exhaust gas can be effectively removed. The exhaust gas forms a high-speed rotating gas flow under the cooperation of the connecting narrow mouth and the internal spiral guide vane, and the inertial separation of large particle dust is realized by using centrifugal force; then the fine dust is ionized by the electrostatic generator and charged and agglomerated by heteroattraction, forming larger dust groups, which are conducive to gravity settling, and the multiple lifting air outlets on the lifting guide plate spray compressed gas, forming a counterflow turbulent zone with the rising exhaust gas, enhancing the collision frequency between dust particles; in combination with the charge effect of the electrostatic generator, the charged particles are more likely to adhere and agglomerate under the action of Coulomb force, further increasing the particle size, which is conducive to subsequent gravity settling or being efficiently captured by the filter bag, significantly improving the removal efficiency of micron-sized dust. The pretreatment process can remove dust in advance, greatly reducing the filtering pressure of the filter bag, and the dust holding backflow plate and the dust blocking plate cooperate to collect the dust that falls off or naturally settles from the filter bag, and the height of the dust blocking plate is adjusted to control the accumulation thickness, realizing the orderly sliding of the dust.

[0017] 2. By setting the pulse distribution plate and multiple punches connected by the branch pipe, and under the support of the gas supply pipe, high-pressure gas flow can be periodically injected into the filter bag, forming a reverse pulse impact, effectively shaking off the dust layer attached to the surface of the filter bag, preventing clogging, and maintaining high ventilation efficiency. The cleaning assembly composed of a driving motor, a driving gear, an idler and a gear ring can drive the conical filter drum to rotate slowly, and the multiple filter bags inside the conical filter drum enter the pulse assembly action area in turn. The support frame is provided with a ball, which cooperates with the top wheel fixed to the inner wall of the dust removal tank. During the rotation of the conical filter drum, the ball periodically hits the top wheel, causing the support frame to vibrate at a high frequency and a small amplitude, thereby driving the filter bag to vibrate and make the attached dust loose and fall off, significantly improving the dust removal effect and reducing the dust removal frequency. The inner pipe is provided with a recessed groove and multiple dust separation grooves at the top, which can guide the dust from the dust holding backflow plate and the dust collecting box to the inner pipe area; the motor drives the rotating rod to rotate, and the scattering pieces stir and scatter the accumulated dust to prevent clogging of the discharge channel due to moisture or fine powder. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a sectional structure schematic diagram of the dust removal tank in the present application; Figure 3 is a whole sectional structure schematic diagram of the present application; Figure 4 is a sectional structure schematic diagram of the branch pipe in the present application; Figure 5 is a sectional structure schematic diagram of the conical filter cartridge in the present application; Figure 6 is a structure schematic diagram of the dust collection box in the present application; Figure 7 is a structure schematic diagram of the dust holding backflow plate in the present application; Figure 8 is a sectional structure schematic diagram of the recovery hopper in the present application; Figure 9 is a sectional structure schematic diagram of the side frame in the present application; Figure 10 is a structure enlarged schematic diagram of A in the present application; Figure 9

[0019] In the figure: 100, dust removal tank; 101, clean gas discharge port; 102, recovery hopper; 103, conical filter cartridge; 104, waste gas inlet pipe; 105, connecting collection narrow port; 106, spiral guide vane; 107, electrostatic generator; 108, filter bag; 109, supporting leg; 200, lifting guide plate; 201, centrifugal pump; 202, gas conveying pipe; 203, lifting air port; 204, dust holding backflow plate; 205, dust blocking plate; 206, dust stringing hole; 207, branch pipe; 208, purging pipe; 209, grounding plate; 300, branch pipe; 301, pulse shunt plate; 302, punch; 303, dust collection box; 304, dust falling pipe; 305, discharge port; 306, side frame; 307, driving gear; 308, driving motor; 309, idler; 310, gear ring; 311, supporting frame; 312, sliding rod; 313, top wheel; 314, ball bearing; 315, sleeve spring; 400, inner pipe; 401, recessed groove; 402, dust separating groove; 403, rotating rod; 404, motor; 405, guide cone; 406, air suction piece; 407, dispersing piece. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] Embodiment one: please refer to Figure 1 - Figure 10 ​The application provides a technical scheme: an intelligent dust removal device for ready-mixed concrete production, which comprises a dust removal tank 100 and a conical filter cartridge 103 arranged in the dust removal tank 100 for dust removal, a plurality of filter bags 108 are fixedly connected in the conical filter cartridge 103, a waste gas inlet pipe 104 for guiding waste gas is connected to one side of the dust removal tank 100, a clean gas outlet 101 is formed in the top of the dust removal tank 100, a recovery hopper 102 is formed in the bottom of the dust removal tank 100, a connecting narrow mouth 105 is fixedly connected to the top of the waste gas inlet pipe 104, and a spiral guide plate 106 is spirally arranged in the connecting narrow mouth 105, the connecting narrow mouth 105 is in a tapered structure, and is matched with the spiral guide plate 106 which is spirally arranged along the inner wall, so that the entering waste gas forms a high-speed rotating gas flow in the channel, the design not only improves the airflow passing speed per unit time, but also uses the centrifugal force effect to promote the larger particles of dust to gather to the outer wall surface, so as to realize preliminary inertial separation, a static electricity generator 107 is fixedly connected to the bottom of the waste gas inlet pipe 104, the static electricity generator 107 can release a high-voltage direct-current electric field, so that the passing dust particles are charged, the charged aerosol particles have a dynamic agglomeration behavior of attracting opposite sex and repelling same sex due to the coulomb force, and a dust group with a larger particle size is formed, wherein the waste gas is guided into the waste gas inlet pipe 104 and filtered through the filter bags 108, the filter bags 108 are used to block the dust, the conical conical filter cartridge 103 can increase the number of filter bags 108 and obtain higher waste gas filtration efficiency, the connecting narrow mouth 105 can guide the waste gas to rotate and obtain a larger flow rate while quickly passing through the waste gas inlet pipe 104, and the static electricity generator 107 can provide static electricity for the dust in the waste gas, so that the dust is adsorbed and agglomerated to increase the size and separate from the waste gas.

[0022] The application also comprises a lifting guide plate 200 which is fixedly connected to the inside of the dust removal tank 100 and located below the waste gas inlet pipe 104 for receiving waste gas, a plurality of lifting assemblies for spraying are arranged in the top of the lifting guide plate 200, the lifting assemblies are used to make the dust move upward and pass through the filter bags 108 for filtration, a dust holding backflow plate 204 is fixedly connected in the dust removal tank 100, and a dust suction assembly for sharing the filtration load of the filter bags 108 is arranged in the dust holding backflow plate 204, the waste gas discharged from the waste gas inlet pipe 104 can be received by the lifting guide plate 200, so that the flow direction of the waste gas is changed by being blocked by the lifting guide plate 200, and the flow direction of the waste gas can be further adjusted in cooperation with the lifting assemblies, so as to realize upward movement and impact on the conical filter cartridge 103, wherein the agglomerated dust falls under the action of gravity and does not need to pass through the filter bags 108 for filtration, and the fine dust is filtered by the plurality of filter bags 108 to realize dust removal, and the further arranged dust suction assembly can receive a part of the scattered dust or the dust blocked by the filter bags 108 and move downward on the slope surface of the dust holding backflow plate 204.

[0023] Further, the lifting assembly comprises a plurality of lifting air outlets 203 arranged on the top of the lifting guide plate 200, the surface of the dust removal tank 100 is fixedly connected with a centrifugal pump 201, the output end of the centrifugal pump 201 is connected with a gas conveying pipe 202, and the gas conveying pipe 202 is connected with the lifting guide plate 200 for conveying gas into the lifting guide plate 200. The gas can be discharged through the lifting air outlets 203 to make the exhaust gas rise upward. The gas discharged from the lifting air outlets 203 collides with the exhaust gas to form more turbulent gas for mutual collision between dust particles. The dust particles are adhered to each other under the electrostatic force generated by the electrostatic generator 107.

[0024] Further, the dust suction assembly comprises a dust blocking plate 205 fixedly connected to the top of the dust holding backflow plate 204, a plurality of dust holding holes 206 are arranged in the dust holding backflow plate 204, the surface of the gas conveying pipe 202 is connected with a gas distribution pipe 207, the dust holding backflow plate 204 is connected with the gas distribution pipe 207, and a plurality of blowing pipes 208 are arranged on one side of the dust holding backflow plate 204 and located below the dust holding holes 206. The dust blocking plate 205 can be arranged to discharge the falling dust particles. The dust blocking plate 205 can effectively block the dust to accumulate and then discharge. The gas distribution pipe 207 can convey gas into the dust holding backflow plate 204 and then discharge the gas through the blowing pipes 208 to form a negative pressure in the dust holding holes 206 to adsorb the dust and move downward. The grounding plate 209 is grounded to discharge the static electricity in the dust.

[0025] Specifically, in use, the exhaust gas generated during the production of premixed concrete is introduced into the connecting narrow opening 105, the exhaust gas is guided by the spiral guide vane 106 to spiral into the exhaust gas inlet pipe 104, and then discharged by the electrostatic generator 107 to impact on the surface of the lifting guide plate 200. The dust in the exhaust gas is charged when passing through the electrostatic generator 107 and then adsorbed. At the same time, the centrifugal pump 201 is started to convey gas into the gas conveying pipe 202. The gas is discharged from the plurality of lifting air outlets 203 after passing through the lifting guide plate 200 to form an upward gas flow mixed with the exhaust gas. The exhaust gas is blown upward to pass through the plurality of filter bags 108 for filtration. Part of the dust is blocked and adsorbed by the filter bags 108. The remaining dust falls to the surface of the dust holding backflow plate 204 after being pushed by the gas, and then is blocked by the dust blocking plate 205. The dust accumulates and then passes through the plurality of dust holding holes 206 to be discharged.

[0026] In summary, through the three-stage synergistic pretreatment mechanism of cyclone separation, electrostatic agglomeration, and pneumatic disturbance, most of the dust in the exhaust gas is effectively removed. The exhaust gas forms a high-speed rotating gas flow under the cooperation of the connecting narrow opening 105 and the internal spiral guide vane 106, and the centrifugal force is used to realize the inertial separation of large particle dust; then ionized by the electrostatic generator 107, the fine dust is charged and inhomogeneous adsorption agglomeration occurs, forming larger particle size dust groups, which are conducive to gravity settling, and the multiple lifting air outlets 203 on the lifting plate 200 blow out compressed gas, forming a counterflow turbulent flow area with the rising exhaust gas, enhancing the collision frequency between dust particles; combined with the charge effect of the electrostatic generator 107, charged particles are more likely to occur under the action of Coulomb force driven adhesion agglomeration, further increasing the particle size, which is conducive to subsequent gravity settling or being efficiently captured by the filter bag 108, significantly improving the removal efficiency of micron-sized dust. The pretreatment process can remove dust in advance, greatly reducing the filtration pressure of the filter bag 108, and the dust collection backflow plate 204 cooperates with the dust blocking plate 205 to collect the dust that falls off or naturally settles from the filter bag 108, and adjusts the height of the dust blocking plate 205 to control the accumulation thickness, realizing the orderly sliding of the dust.

[0027] Embodiment two: please refer to Figure 1 Figure 10 The present application also provides a technical solution, which is different from the technical solution of embodiment one: an intelligent dust removal device for ready-mixed concrete production, further comprising a branch pipe 300 fixedly connected to the inside of the dust removal tank 100, one end of the branch pipe 300 being connected with a pulse assembly capable of cleaning the filter bag 108, and a dust collection box 303 for collecting dust being arranged below the conical filter cartridge 103 and being adapted to the pulse assembly, the inner wall of the dust removal tank 100 being provided with a cleaning assembly for driving the conical filter cartridge 103 to rotate and cooperating with the pulse assembly to comprehensively clean the multiple filter bags 108. By arranging the pulse assembly, the dust adhered to the filter bag 108 can be effectively impacted and separated, and the dust treated by the pulse assembly can be collected by the dust collection box 303, and the cleaning assembly can effectively drive the rotation of the conical filter cartridge 103 to change the filter bag 108 located in the pulse assembly, thereby achieving comprehensive cleaning.

[0028] ​Further, the pulse assembly comprises a slide rod 312 connected to one end of the branch pipe 300, and the slide rod 312 is communicated with the gas conveying pipe 202, the outer surface of the branch pipe 300 is fixedly connected with a support frame 311, one end of the dust collecting box 303 is fixedly connected with a dust falling pipe 304, the bottom of the dust falling pipe 304 is fixedly connected with a discharge port 305, one end of the branch pipe 300 is connected with a pulse flow dividing plate 301, the bottom of the pulse flow dividing plate 301 is connected with a plurality of punches 302 towards the conical filter cartridge 103, the support frame 311 is arranged to open the channel between the branch pipe 300 and the slide rod 312, so that the gas can quickly flow into the pulse flow dividing plate 301 to generate impact force to clean the filter bag 108, and the dust collecting box 303 can absorb the dust impacted by the filter bag 108, and the dust is discharged through the discharge port 305 for recycling and reuse.

[0029] Further, the cleaning assembly comprises a idler gear 309 rotationally connected to the inner wall of the dust removal tank 100, the inner wall of the dust removal tank 100 is rotationally connected with a gear ring 310 engaged with the idler gear 309, the outer surface of the conical filter cartridge 103 is fixedly connected with a support frame 311, the inside of the support frame 311 is fixedly connected with a plurality of slide rods 312 slidingly connected with the gear ring 310, the cooperation of the driving gear 307 and the idler gear 309 can effectively drive the conical filter cartridge 103 to rotate, so that the conical filter cartridge 103 can receive the exhaust gas at different angles to maintain high dust removal efficiency, wherein the support frame 311 and the gear ring 310 are connected through the slide rod 312, and the two are live connected to produce small displacement under the impact of the exhaust gas to reduce the damage of the direct impact of the exhaust gas.

[0030] Further, one side of the dust removal tank 100 is fixedly connected with a side frame 306, the inside of the side frame 306 is rotationally connected with a driving gear 307 engaged with the idler gear 309, the top of the side frame 306 is fixedly connected with a driving motor 308 for driving the driving gear 307 to rotate, the inside of the support frame 311 is fixedly connected with a plurality of top wheels 313, the inside of the support frame 311 is fixedly connected with a plurality of ball bearings 314 matched with the top wheels 313, the outer surface of the slide rod 312 is sleeved with a sleeve spring 315 for self-resetting, and when the support frame 311 rotates, the ball bearings 314 are constantly contacted by the top wheels 313, further driving the conical filter cartridge 103 to vibrate to drive the dust attached to the surface of the filter bag 108 to separate, reducing the blockage.

[0031] Further comprising an inner tube 400 arranged in the interior of the recovery hopper 102, a recessed groove 401 is arranged at the top of the inner tube 400, a rotating rod 403 is rotatably connected to the interior of the inner tube 400, a plurality of air suction fins 406 are fixedly connected to the outer surface of the rotating rod 403, a plurality of scattering fins 407 are fixedly connected to the top of the rotating rod 403, a plurality of dust separation grooves 402 communicating with the recovery hopper 102 are arranged in the interior of the recessed groove 401, a motor 404 for driving the rotating rod 403 to rotate is fixedly connected to the bottom of the inner tube 400, and a guide cone 405 is fixedly connected to the outer surface of the rotating rod 403. The scattering fins 407 arranged therein can push the dust to move on the inner wall of the recessed groove 401 and then be discharged through the plurality of dust separation grooves 402, so that the dust is discharged, and a small amount of dust that is not discharged is discharged from the interior of the inner tube 400. At this time, the dust has been bonded with each other and separated from the gas, and then further separated from the gas when impacting the surface of the guide cone 405, facilitating recovery.

[0032] Specifically, with the driving motor 308 being turned on to drive the driving gear 307 to rotate, the driving gear 307 drives the toothed ring 310 to rotate through the idler gear 309, and then drives the conical filter cartridge 103 to rotate slowly to change the positions of the plurality of filter bags 108. At the same time, when the support frame 311 rotates, the top wheel 313 will constantly collide with the ball 314 to drive the support frame 311 to shake in the toothed ring 310, and then shake off the dust adhered to the filter bag 108. The intermittent opening of the support frame 311 will make the gas output by the centrifugal pump 201 flow into the branch pipe 300, and then flow through the support frame 311 to be discharged through the plurality of punches 302 to backflush the filter bag 108, so that the impurities adhered to the surface of the filter bag 108 are flushed into the dust collection box 303 for collection, and finally discharged through the discharge port 305. The communication between the gas distribution pipe 207 and the gas conveying pipe 202 makes part of the gas flow into the dust holding return plate 204 and then be discharged through the plurality of blowing pipes 208, so that the dust passing hole 206 forms a negative pressure to further guide the dust to pass through. The dust finally falls into the recessed groove 401 and is scattered by the scattering fins 407 to make the fine particles be discharged through the dust separation groove 402, and the agglomerated particles are discharged through the inner tube 400 and fall on the guide cone 405 to be dispersed by the centrifugal force.

[0033] In summary, by setting the pipe 300 connecting the pulse shunt plate 301 and multiple punches 302, and under the support of the gas supply pipe 202, the high-pressure gas flow can be periodically injected into the inside of the filter bag 108, forming a reverse pulse impact, effectively shaking off the dust layer attached to the surface of the filter bag 108, preventing clogging, and maintaining high ventilation efficiency. The cleaning assembly composed of a driving motor 308, a driving gear 307, an idler gear 309 and a gear ring 310 can drive the conical filter cartridge 103 to rotate slowly, driving multiple filter bags 108 inside it to enter the pulse assembly action area in turn. The ball 314 is arranged on the support frame 311 and cooperates with the top wheel 313 fixed to the inner wall of the dust removal tank 100. During the rotation of the conical filter cartridge 103, the ball 314 periodically impacts the top wheel 313, causing the support frame 311 to vibrate at a high frequency and a small amplitude, thereby driving the filter bag 108 to vibrate and make the attached dust loose and fall off, significantly improving the dust removal effect and reducing the dust removal frequency. The inner tube 400 is arranged in the recovery hopper 102, and the top of the inner tube 400 is provided with a recess groove 401 and multiple dust separation grooves 402, which can guide the dust from the dust holding return plate 204 and the dust collection box 303 to the area of the inner tube 400. The motor 404 drives the rotating rod 403 to rotate, driving the dispersing sheet 407 to stir and disperse the accumulated dust, preventing damp or fine powder from blocking the discharge channel.

[0034] Example three: please refer to Figure 1 Figure 10 The present application also provides a technical solution, which is different from the technical solution of example one: an intelligent dust removal method for pre-mixed concrete production, comprising the following steps: S1, in use, the waste gas generated during pre-mixed concrete production is introduced into the connecting narrow inlet 105, the waste gas is guided by the spiral guide vane 106 and spirally enters the waste gas inlet pipe 104, and then is discharged by the electrostatic generator 107 to impact the surface of the lifting guide plate 200, wherein the dust in the waste gas is charged when passing through the electrostatic generator 107 and then is adsorbed by each other; S2, simultaneously open the centrifugal pump 201 to supply gas to the gas supply pipe 202, the gas is discharged from multiple lifting air outlets 203 after passing through the lifting guide plate 200, mixed with the waste gas to form an upward gas flow, thereby blowing the waste gas upward to move through multiple filter bags 108 for filtering, part of the dust is blocked and adsorbed by the filter bag 108, and the remaining dust falls to the surface of the dust holding return plate 204 after being pushed by the gas, and then is blocked by the dust blocking plate 205, and as the dust accumulates, it will pass through multiple dust string holes 206; ​S3, with the opening of the drive motor 308 to drive the pinion 307 rotation, the pinion 307 through the idler gear 309 and drive gear ring 310 rotation, in turn, drive the tapered filter cartridge 103 slowly rotating and changing the position of the plurality of filter bags 108, while the support frame 311 rotation will make the top wheel 313 constantly with the ball 314 from the touch to drive the support frame 311 inside the gear ring 310 shaking, in turn, shake off the dust attached to the filter bag 108, and intermittent opening of the support frame 311 will make the centrifugal pump 201 output gas shunt to the pipe 300, then through the support frame 311 shunt and through the plurality of punch 302 discharge backflush filter bag 108, so that the surface of the impurities attached to the dust collection box 303, finally through the exhaust port 305 discharge; S4, while the gas pipe 207 and gas pipe 202 communication makes part of the gas into the dust holding backflow plate 204 and through the plurality of purge pipe 208 discharge, in turn, so that the string dust hole 206 form negative pressure, further guide dust through, dust eventually fall into the recessed groove 401 and be hit by the dispersion piece 407 to disperse so that small particles through the dust separation groove 402 discharge, while the granular particles through the inner tube 400 discharge and fall into the guide cone 405 by centrifugal force dispersed.

[0035] It should be noted that in this text, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0036] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. An intelligent dust removal device for ready-mixed concrete production, comprising a dust removal tank (100) and a conical filter cartridge (103) arranged inside the dust removal tank (100) for dust removal, and a plurality of filter bags (108) fixedly connected inside the conical filter cartridge (103), one side of the dust removal tank (100) being connected with a waste gas inlet pipe (104) for guiding waste gas into the dust removal tank (100), characterized in that, Also include: The lifting guide plate (200) is fixedly connected to the inside of the dust removal tank (100) and located below the waste gas inlet pipe (104) for receiving waste gas, and the top of the lifting guide plate (200) is provided with a plurality of lifting components for jetting, which is used to stir the dust upward to pass through the filter bag (108) for filtering, and the dust removal tank (100) is fixedly connected with a dust holding backflow plate (204), and the dust holding backflow plate (204) is provided with a dust suction component for sharing the filtering load of the filter bag (108); The branch pipe (300) is fixedly connected to the inside of the dust removal tank (100), one end of the branch pipe (300) is connected with a pulse component capable of cleaning the filter bag (108), and a dust collecting box (303) is arranged below the conical filter cylinder (103) and is adapted with the pulse component and used for collecting dust, and the inner wall of the dust removal tank (100) is provided with a cleaning component for driving the conical filter cylinder (103) to rotate to cooperate with the pulse component to clean the plurality of filter bags (108).

2. The intelligent dust removal device for ready-mixed concrete production according to claim 1, characterized in that: The lifting component includes a plurality of lifting air outlets (203) opened at the top of the lifting guide plate (200), the surface of the dust removal tank (100) is fixedly connected with a centrifugal pump (201), the output end of the centrifugal pump (201) is connected with a gas conveying pipe (202), and the gas conveying pipe (202) is connected with the lifting guide plate (200) for conveying gas to the inside of the lifting guide plate (200).

3. The intelligent dust removal device for ready-mixed concrete production according to claim 2, characterized in that: The dust suction component includes a dust blocking plate (205) fixedly connected to the top of the dust holding backflow plate (204), a plurality of dust stringing holes (206) are opened in the inside of the dust holding backflow plate (204), the surface of the gas conveying pipe (202) is connected with a gas distribution pipe (207), and the gas distribution pipe (207) is connected with the dust holding backflow plate (204), one side of the dust holding backflow plate (204) is connected with a plurality of purge pipes (208) located below the dust stringing holes (206).

4. The intelligent dust removal device for ready-mixed concrete production according to claim 1, characterized in that: The pulse component includes a sliding rod (312) connected to one end of the branch pipe (300), and the sliding rod (312) is in communication with the gas conveying pipe (202), the outer surface of the branch pipe (300) is fixedly connected with a support frame (311), one end of the dust collecting box (303) is fixedly connected with a dust falling pipe (304), the bottom of the dust falling pipe (304) is fixedly connected with a discharge port (305), one end of the branch pipe (300) is connected with a pulse flow dividing plate (301), and the bottom of the pulse flow dividing plate (301) is connected with a plurality of punches (302) facing the conical filter cylinder (103).

5. The intelligent dust removal device for ready-mixed concrete production according to claim 1, characterized in that: The cleaning component includes a idler (309) rotationally connected to the inner wall of the dust removal tank (100), the inner wall of the dust removal tank (100) is rotationally connected with a gear ring (310) engaged with the idler (309), the outer surface of the conical filter cylinder (103) is fixedly connected with a support frame (311), and the inside of the support frame (311) is fixedly connected with a plurality of sliding rods (312) slidingly connected with the gear ring (310).

6. The intelligent dust removal device for ready-mixed concrete production according to claim 5, characterized in that: The side of the dust removal tank (100) is fixedly connected with a side frame (306), the inside of the side frame (306) is rotatably connected with a driving gear (307) engaged with a idler gear (309), and the top of the side frame (306) is fixedly connected with a driving motor (308) for driving the driving gear (307) to rotate.

7. The intelligent dust removal device for ready-mixed concrete production according to claim 5, characterized in that: The inside of the dust removal tank (100) is fixedly connected with a plurality of top wheels (313), the inside of the supporting frame (311) is fixedly connected with a plurality of ball bearings (314) matched with the top wheels (313), and the outer surface of the sliding rod (312) is sleeved with a sleeve spring (315) for self-resetting.

8. The intelligent dust removal device for ready-mixed concrete production of claim 1, characterized in that: The top of the dust removal tank (100) is provided with a clean gas discharge port (101), the bottom of the dust removal tank (100) is provided with a recycling hopper (102), the top of the waste gas inlet pipe (104) is fixedly connected with a connecting narrow mouth (105), the inside of the connecting narrow mouth (105) is spirally provided with a spiral guide plate (106), and the bottom of the waste gas inlet pipe (104) is fixedly connected with an electrostatic generator (107).

9. The intelligent dust removal device for ready-mixed concrete production according to claim 8, characterized in that: Further comprising an inner tube (400) arranged in the inside of the recycling hopper (102), the top of the inner tube (400) is provided with a recessed groove (401), the inside of the inner tube (400) is rotatably connected with a rotating rod (403), the outer surface of the rotating rod (403) is fixedly connected with a plurality of air suction blades (406), the top of the rotating rod (403) is fixedly connected with a plurality of scattering blades (407), the inside of the recessed groove (401) is provided with a plurality of dust separation grooves (402) in communication with the recycling hopper (102), and the bottom of the inner tube (400) is fixedly connected with a motor (404) for driving the rotating rod (403) to rotate, and the outer surface of the rotating rod (403) is fixedly connected with a guide cone (405).

10. An intelligent dust removal method for ready-mixed concrete production, an intelligent dust removal device for ready-mixed concrete production according to any one of claims 1-9, characterized in that, The steps include: S1, the waste gas enters the dust removal tank (100) through the waste gas inlet pipe (104); S2, the lifting assembly is started to run at the same time, the waste gas is lifted to pass through the plurality of filter bags (108) for filtration, part of the dust is blocked and adsorbed by the filter bags (108), and the remaining dust falls onto the surface of the dust holding backflow plate (204) after being pushed by the gas, and then the dust suction assembly is started to run to share the load of the filter bags (108); S3, the filter bags (108) are cleaned by the pulse assembly, and the impurities attached to the surface of the filter bags (108) are flushed into the dust collection box (303) for collection, and the cleaning assembly is started to drive the conical filter cartridge (103) to rotate slowly, thereby changing the positions of the plurality of filter bags (108).

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