Sodium bicarbonate vibrating screen

Abstract

The invention discloses a baking soda vibrating screen, which belongs to the technical field of screening and comprises a base, supporting piles are arranged on two sides of the base, a supporting disc is arranged at the tops of the supporting piles, a discharging hopper is arranged in the middle of the supporting disc, a rotary vibrating power mechanism is connected to one side of a supporting ring, a screen frame is inserted into the supporting ring, and a screen mesh plate is arranged in the screen frame. Through holes are evenly formed in the walking strip and communicate with the collecting cavity, ventilation plugs are arranged in the through holes, and a ventilation mechanism is arranged on the mounting plate. An upper powder receiving pipe is arranged on the supporting disc, the upper end of the upper powder receiving pipe is connected with a rotary twisting mechanism, one end of the rotary twisting mechanism is connected with a flap valve, and one end of the flap valve is connected with a top connecting pipe; a control mechanism is arranged on one side of the base. According to the baking soda vibrating screen, operation of the rotary rubbing mechanism is controlled through the control mechanism, baking soda can be effectively broken and pulverized before making contact with the screen mesh plate, and screening holes of the screen mesh plate can be more conveniently and effectively cleaned under the control of the ventilation mechanism through the control mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of screening, and in particular relates to a baking soda vibrating screen. Background Art

[0002] Sodium bicarbonate, also known as baking soda, is mostly prepared by gas phase carbonization in industry. After preparation, those that need to be shipped immediately can be blown to packaging equipment through air blowing equipment; the part that is not shipped needs to be gas-phase dried and then sealed and stored in elevated storage bins. When packaging is required, the baking soda stored in the elevated storage bins needs to be discharged to a vibrating screen for fine screening, and then discharged to a centrifugal drying equipment for drying. The dried baking soda gas discharged from the centrifugal drying equipment is sent to the packaging equipment by the air blowing equipment for equal packaging.

[0003] The purpose of using a vibrating screen for screening is that the baking soda is squeezed at high weight in the elevated storage bin for a long time, and the baking soda carries a small amount of moisture when it is discharged into the elevated storage bin, which causes the baking soda powder to form a certain amount of agglomeration in some areas. The setting of the vibrating screen can make the agglomerated baking soda powder be powdered under the action of high-frequency vibration, thereby effectively ensuring the quality of the packaging product.

[0004] Secondly, the advantage of using a vibrating screen over the cyclone screen on the market is that it can refine more baking soda powder per unit time and the equipment procurement cost is lower.

[0005] At present, vibrating screens are mostly divided into two styles. The first type is that the screen frame is supported by an elastic base, and a feed hopper is arranged on the top of the screen frame. The feed hopper is used to connect the bottom discharge pipe of the elevated storage bin through a pipeline, and is operated by a high-frequency exciter on the side of the screen frame plate, so that the high-frequency vibration in the screen frame causes the baking soda powder in the screen frame to be excited and discharged quickly, and the agglomerated baking soda is powdered and discharged under the action of the high-frequency vibrating screen plate. Due to its structural limitations, this type of vibrating screen is more suitable for use when the discharge volume per unit time is not large; the second type is different from the first type in that its bottom adopts a fixed base, which is powered by a motor and supported on the screen frame by a swingable setting. The motor drives the coupling mechanism to drive the screen frame to swing horizontally at high speed, forming a horizontal swing of the screen plate at a certain amplitude. This type of vibrating screen is suitable for use when the discharge volume per unit time is large, and compared with the first type, it has a better effect on destroying and powdering agglomerated baking soda, so it is also often used for discharging and screening work in large-scale high-rise storage bins in factories.

[0006] However, this type of transversely oscillating vibrating screen also has certain problems: due to the limitation of the direction of the screen plate, it cannot cause the screen plate to vibrate in multiple dimensions like an exciter, and some baking soda blocks that have not been effectively destroyed are easy to block the screen holes of the screen plate, especially when there are a lot of baking soda blocks in the elevated storage bin, the screen holes are blocked a lot, and the fine screening efficiency is reduced; therefore, the screen plate needs to be disassembled from the screen frame regularly, and then the baking soda blocks in the screen holes are cleaned with an air gun. After cleaning, the screen plate needs to be reinstalled in the screen frame, and the whole disassembly and cleaning process is inconvenient; For this reason, it is necessary to provide a baking soda vibrating screen which can effectively break up the baking soda into powder before contacting the screen and can more conveniently and effectively clean the sieve holes of the screen plate. Summary of the invention

[0007] The purpose of the present invention is to provide a baking soda vibrating screen to solve the problems existing in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solution: a baking soda vibrating screen, comprising a base, support piles are arranged on both sides of the base and a support plate is arranged on the top of the support piles, a lower hopper is arranged in the middle of the support plate, and a powder discharge pipe is connected to the lower end of the lower hopper; The front and rear sides of the support plate are connected with connecting rods, and a top plate is arranged on the top of the connecting rod. The top plate is connected with a support ring through a soft cover, and the support ring is connected with the lower hopper through the soft cover. The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts. The support plate is provided with an upper powder connecting pipe, the upper end of which is connected to a rubbing mechanism, and the rubbing mechanism is used to rub the baking soda powder discharged from the lower end to the upper powder connecting pipe in multiple layers; one end of the rubbing mechanism is connected to a flap valve, and one end of the flap valve is connected to a top connecting pipe; A control mechanism is arranged on one side of the base, and the control mechanism is used to control the operation of the rotational vibration force mechanism, the ventilation mechanism and the rotation and rubbing mechanism.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The baking soda vibrating screen in the present invention can effectively break up and powderize the baking soda before it contacts the screen plate by controlling the operation of the rotating and rubbing mechanism through the control mechanism. The baking soda vibrating screen can more conveniently and effectively clean the sieve holes of the screen plate when the ventilation mechanism is controlled by the control mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view schematic diagram of the present invention; Figure 2 for Figure 1 A partial cutaway diagram of Figure 3 for Figure 2 A schematic diagram of the structure at a is enlarged; Figure 4 for Figure 2 A schematic diagram of the structure at point b is enlarged; Figure 5 for Figure 2 The enlarged structural diagram at c; Figure 6 for Figure 1 The enlarged structural diagram at d; Figure 7 for Figure 2 The enlarged structural diagram at e; Figure 8 for Figure 2 Enlarged structural diagram of the middle control box; Fig. 9 This is a schematic diagram of the distribution of the vent plugs of the present invention; Fig.10 This is a schematic diagram of the distribution of the rotating loose rods and the stacking plates in the present invention; Fig.11 It is a schematic diagram of the connection of each module in the cleaning and control module of the present invention; Fig.12 This is a schematic diagram of the connection of each module in the crushing control module of the present invention; In the figure: 1 base, 2 support pile, 3 support plate, 4 lower hopper, 5 powder pipe, 6 connecting rod, 7 top plate, 8 soft cover, 9 support ring, 10 support frame, 11 top plate, 12 motor 1, 13 rotating plate, 14 rotating shaft, 15 support ring 1, 16 connecting rod, 17 fixed frame, 18 fixed shaft, 19 support ring 2, 20 side shaft, 21 screen frame, 22 screen plate, 23 mounting plate, 24 air pipe, 25 strip, 26 collection chamber, 27 breathable plug, 28 motor 2, 29 screw, 30 receiving plate, 31 gas Flow rate detector, 32 middle pipe, 33 electromagnetic reversing valve, 34 pipe, 35 flexible pipe, 36 upper powder pipe, 37 rotary cover, 38 sealed bearing, 39 motor three, 40 gear, 41 gear ring, 42 upper pipe, 43 fixed loose rod, 44 rotating loose rod, 45 stacking plate, 46 side connecting plate, 47 fixed support rod, 48 flap valve, 49 top connecting pipe, 50 connecting column, 51 control box, 52 industrial computer, 53 driver, 54 development board, 101 ultrasonic vibrator, 102 powder concentration detection head. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0012] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 A baking soda vibrating screen comprises a base 1, support piles 2 are fixed by bolts on the left and right sides of the base 1, and a support plate 3 is fixed by bolts on the top of the support piles 2, a lower hopper 4 is fixed by bolts in the middle of the support plate 3, and a powder discharge pipe 5 is fixed to the lower end of the lower hopper 4 by a throat clamp, and the powder discharge pipe 5 is a stainless steel iron square tube; The front and rear side bolts of the support plate 3 are fixed to the connecting rod 6, and the top bolts of the connecting rod 6 are fixed to the top plate 7. Under such a setting, the support plate 3 is fixed to the top plate 7 through the connecting rod 6, the lower part of the top plate 7 is riveted to the soft cover 8, the lower end of the soft cover 8 is riveted to the support ring 9, and the top plate 7 is connected to the support ring 9 through the soft cover 8; the material of the soft cover 8 is fluororubber, the lower end of the support ring 9 is riveted to the soft cover 8, and the lower end of the soft cover 8 is riveted to the lower hopper 4; By setting the soft cover 8 at the upper and lower positions, the baking soda powder discharged from the upper lower part of the top plate 7 can be effectively discharged into the lower hopper 4 without affecting the lateral swing of the support ring 9.

[0013] A rotational vibration force mechanism is arranged on one side of the support disk 3, and the rotational vibration force mechanism is connected to the left side of the support ring 9. The rotational vibration force mechanism is used to drive the screen plate 22 to shake laterally. A screen frame 21 is slidably inserted in the support ring 9, and a screen plate 22 is welded in the screen frame 21. The mesh diameter of the screen plate 22 is 0.5 mm. A mounting groove is arranged on the right side of the support ring 9, and a mounting plate 23 is slidably inserted into the mounting groove and fixed with screws. The screen frame 21 is arranged integrally on the left side of the mounting plate 23. A strip groove is arranged on the upper and lower parts of the left side of the mounting plate 23, and a strip 25 is slidably inserted in the strip groove. An air inlet is slidably inserted in the upper and lower parts of the mounting plate 23. Tube 24, a collecting chamber 26 is arranged in the running strip 25 and the air connection pipe 24 is connected with the collecting chamber 26, the left end of the air connection pipe 24 is threaded and sealed and fixed on the right side of the running strip 25, through holes are evenly arranged on the running strip 25 and are connected with the collecting chamber 26, the front and rear adjacent through holes are the same as the mesh of the screen plate 22, and the air plug 27 is bonded with a sealant in the through hole, and the material of the air plug 27 is fluororubber, and its size is set to meet the following requirements: when the running strip 25 moves laterally on the screen plate 22, the air plug 27 effectively abuts against the screen plate 22 to ensure that the air plug 27 is connected with the mesh of the screen plate 22. A ventilation mechanism is arranged on the mounting plate 23, and the ventilation mechanism is used to push the running strip 25 to move along the screen plate 22, cooperate with the head strip 25 to detect the air permeability of the mesh of the screen plate 22, and ventilate and clean the mesh of the screen plate 22; Therefore, when the rotary vibration force mechanism stops running, when the strip 25 is driven by the ventilation mechanism to move on the screen plate 22, the ventilation of each row of meshes of the screen plate 22 is detected, and the baking soda lumps in the meshes can be cleared by air blowing.

[0014] An upper powder pipe 36 is integrally arranged on the support plate 3, and the upper powder pipe 36 is connected to the soft cover 8; the upper end of the upper powder pipe 36 is connected to a rotary rubbing mechanism, and the rotary rubbing mechanism is used to rub and disperse the baking soda powder discharged from the lower end to the upper powder pipe 36 in multiple layers; the upper end flange of the rotary rubbing mechanism is connected to a flap valve 48, and the upper end flange of the flap valve 48 is connected to a top connecting pipe 49, and the top connecting pipe 49 is used to flange-connect the discharge pipe at the bottom of the elevated storage bin; When the flap valve 48 is opened, the baking soda in the elevated storage bin is discharged into the screen frame 21 through the top connecting pipe 49, the rotary rubbing mechanism, and the upper powder connecting pipe 36. During this process, the rotary rubbing mechanism can effectively crush the baking soda in the lower discharge to reduce the amount of lumps in the baking soda.

[0015] A control mechanism is installed on the right side of the base 1, and the control mechanism is used to control the operation of the rotational vibration force mechanism, the ventilation mechanism and the rotation and rubbing mechanism.

[0016] See also Figure 1 , Figure 2 and Figure 3The rotary vibration force mechanism includes a support frame 10 fixed to the left side of the support plate 3 by bolts, the top of the support frame 10 is bolted to the top plate 11, and the bottom of the top plate 11 is bolted to the motor 12. The motor 12 is a high-speed motor. The rotor shaft of the motor 12 passes through the top plate 11 and is flange-connected to the bottom center of the rotary plate 13. The right side of the rotary plate 13 is inserted into the receiving bearing by interference, and the inner ring of the receiving bearing is inserted into the rotating shaft 14 by interference, and the top bearing is inserted into the rotating shaft 14 by interference, and the top bearing is inserted into the support ring 15 by interference, and the right side of the support ring 15 is bolted to fix the connecting rod 16, and the right end of the fixed connecting rod 16 is integrally provided with a fixed frame 17, and the fixed shaft 18 is bolted to the fixed frame 17. The fixed shaft 18 is inserted into the rotating bearing by interference, and the outer ring of the rotating bearing is inserted into the support ring 19 by interference, and the right side of the support ring 19 is bolted to fix the side shaft 20, and the right end of the side shaft 20 is bolted to the middle part of the left side of the support ring 9.

[0017] When the motor 12 is running, it drives the rotary plate 13 to rotate, so that the rotating shaft 14 rotates with the center of the rotary plate 13 as the radius, and under the linkage of the support ring 15, the connecting rod 16, the fixed frame 17, the support ring 2 19 and the side shaft 20, the support ring 9 is driven to swing horizontally at a high speed, so that the screen frame 21 and the screen plate 22 swing horizontally, so that the baking soda falling on the screen plate 22 quickly passes through the mesh holes and is discharged downward due to the lateral swinging action, and the agglomerated powder particles in the baking soda powder are pulverized by the impact and rolling of the materials in the lateral swinging process.

[0018] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Fig. 9 and Fig.10 The ventilation mechanism includes a motor 28 fixed to the right side of the mounting plate 23 by bolts. The motor 28 is a stepping motor. The rotor shaft of the motor 28 is connected to the screw 29 by an interference key. The right end of the screw 29 is screwed to the receiving plate 30. The upper and lower parts of the receiving plate 30 are provided with air holes, and the air pipe 24 is seamlessly welded to the left end of the air hole, so that the air pipe 24 is connected to the air hole. The right end of the air hole is screwed to a joint, and the joint flange is connected to a gas flow rate detector 31. The right gas connection end of the gas flow rate detector 31 is connected to the left gas connection end of the electromagnetic reversing valve 33 through a middle pipe 32. The control input end of the electromagnetic reversing valve 33 is connected to the potential output end of the integrated relay through a cable. The right gas connection end of the electromagnetic reversing valve 33 is connected to the pipe 34 and the pipe 34 is connected to the flexible pipe 35. One of the flexible pipes 35 is connected to the compressed gas station. The electromagnetic reversing valve 33 is a four-position three-way valve.

[0019] The operation of the motor 28 drives the lead screw 29 to rotate, thereby driving the upper and lower air strips 25 to cooperate with the air connecting pipe 24 to move left and right, so that the air permeable plug 27 on the air strip 25 is aligned with each row of mesh holes; and by controlling the electromagnetic reversing valve 33, the inlet and outlet directions of the upper and lower air connecting pipes 24 are switched. When the lower air connecting pipe 24 is inletting air, the upper air connecting pipe 24 is exhausted. This is an action to remove baking soda lumps in the mesh holes. When the lower air connecting pipe 24 is exhausting air, the upper air connecting pipe 24 is inletting air. This is an action to detect the gas flow rate.

[0020] The front and rear parts of the support ring 9 are evenly screwed with ultrasonic vibrators 101, and the ultrasonic vibrators 101 at the front and rear positions are staggered by 5 cm. The transmission line of the ultrasonic vibrator 101 is connected to the high-frequency electrical signal output end of the external ultrasonic transducer station. The control terminals of each ultrasonic transducer of the ultrasonic transducer station are connected to the potential output pile of the external integrated relay through a cable. The power input pile of the integrated relay is connected to the external power supply through a cable. The transmission ends of the ultrasonic vibrators 101 are in contact with the side of the screen frame 21.

[0021] By controlling the operation of the ultrasonic transducer in the ultrasonic transducer station, the ultrasonic vibrator 101 can be turned on and off according to the position of the conveyor 25. Specifically, when the conveyor 25 moves between the adjacent ultrasonic vibrators 101 on the left and right, the adjacent ultrasonic vibrators 101 are operated, and the ultrasonic vibrators 101 at other positions are turned off.

[0022] Under such a setting, it is prevented that the ultrasonic waves generated by the ultrasonic vibrators 101 in other areas weaken the ultrasonic waves in the strip 25 area, and secondly, the operating energy consumption can be reduced.

[0023] By operating the ultrasonic vibrator 101 with the front and rear positions offset, the baking soda powder lumps in the mesh of the screen plate 22 can be accelerated to separate, which is beneficial for rapid blowing out by air blowing.

[0024] See also Figure 1 , Figure 2 , Figure 7 The rotary rubbing mechanism includes a powder concentration detection head 102 screwed to the right side of the bottom of the upper powder connecting tube 36, and the powder concentration detection head 102 is used to detect the concentration of baking soda discharged from the upper part of the upper powder connecting tube 36. The upper powder connecting tube 36 is inserted into the sealing bearing 38 by interference, and the outer ring of the sealing bearing 38 is inserted into the rotary cover 37 by interference, and the upper part of the rotary cover 37 is inserted into the sealing bearing 38 by interference, and the inner ring of the sealing bearing 38 is inserted into the upper pipe 42 by interference; The inner bottom of the upper pipe 42 and the inner upper part of the upper powder pipe 36 are uniformly welded with fixed loose rods 43, and the upper and lower parts of the rotary cover 37 are uniformly welded with rotating loose rods 44, and the fixed loose rods 43 are in sliding contact with the rotating loose rods 44; the stacking plates 45 are uniformly welded in the circumferential direction between the rotating loose rods 44 in the rotary cover 37, and the side connecting plates 46 are fixed by bolts on the left and right sides of the upper pipe 42, and the bottom of the side connecting plates 46 is welded with support rods 47, and the lower end of the support rods 47 is bolted to the top plate 7; The right side of the support plate 3 is bolted to fix the motor 3 39, which is a stepping motor. The rotor shaft of the motor 3 39 is connected to the gear 40 by an interference key. A gear ring 41 is integrally provided in the middle of the rotary cover 37 and the gear ring 41 is meshed with the gear 40. The motor 39 is operated to drive the gear 40 to rotate, and the gear 40 and the gear ring 41 cooperate to drive the rotary cover 37 to rotate. When the baking soda powder passes through the double-layer fixed scattering rod 43 and the rotating scattering rod 44, the rotating rotating scattering rod 44 cooperates with the fixed scattering rod 43 to effectively break up the baking soda powder blocks, and the baking soda powder blocks are powdered under the lateral spinning action; in this process, the rotating stacking plate 45 stacks and scatters the baking soda powder, so that the baking soda powder blocks are more effectively powdered.

[0025] The upper end flange of the upper pipe 42 is connected to the discharge end of the flap valve 48, the control terminal of the flap valve 48 is connected to the power output post of the relay through a cable, the power input post of the relay is connected to the external power supply through a cable, and the coil output end of the relay is connected in series with the button switch and the external DC power supply through a cable. Therefore, the opening and closing operation of the flap valve 48 can be controlled by operating the button switch, thereby controlling the release of baking soda in the elevated storage bin.

[0026] See also Figure 1 , Figure 2 , Figure 8 The control mechanism includes a connecting column 50 fixed to the right side of the base 1 by screws, the top of the connecting column 50 is screwed to fix a control box 51, the panel of the control box 51 is embedded with an industrial computer 52, and the left side of the control box 51 is screwed to fix a driver 53. There are three drivers 53. The main power input end of the driver 53 is connected to the external power supply through a cable, and the power control output ends of the three drivers 53 are respectively connected to the power controlled ends of motor 1 12, motor 28 and motor 3 39 through cables, and the main power input end of the driver 53 is connected to the external power supply through a cable; the control box 51 is located below the driver 53 and is fixed to a development board 54 with insulating pad screws. A clear control module and a broken control module are set on the development board 54. The clear control module is used to control the operation of the ventilation mechanism, and the broken control module is used to control the operation of the rotational vibration force mechanism and the rotation and rubbing mechanism.

[0027] See also Fig.11The air cleaning and control module includes a gas flow rate signal receiving module and a control signal receiving module. The gas flow rate signal receiving module is used to receive the gas flow rate data input by the gas flow rate detector 31 in real time. The signal line of the gas flow rate detector 31 is connected to the signal receiving pin of the gas flow rate signal receiving module. The control signal receiving module is used to receive the control signal input by the industrial computer 52. The signal input pin of the control signal receiving module is connected to the signal output end of the industrial computer 52 through the signal line. The gas flow rate signal receiving module and the control signal receiving module are connected to the analysis and processing module, and the analysis and processing module is connected to the steering digital control module, the relay signal control module and the switch signal control module. The analysis and processing module is used to receive the start-up instruction of the industrial computer 52, and analyze the gas flow rate data in real time, and when the real-time gas flow rate data is lower than the standard gas flow rate value, control the steering digital control module, the relay signal control module and the switch signal control module to operate; First, the industrial computer 52 issues an operation and clearing control instruction, and the analysis and processing module issues an operation instruction to the steering CNC input module, so that the motor 28 drives the screw 29 to operate and the strip 25 moves according to the spacing between two adjacent rows of mesh holes on the screen plate 22 and then stops, so that a row of through holes in the strip 25 corresponds to a row of mesh holes on the screen plate 22 one by one, and an operation instruction is issued to the relay signal control input module to make the electromagnetic reversing valve 33 reverse, and the compressed air of the compressed gas station enters from the upper air connecting pipe 24 and is then discharged through the lower air connecting pipe 24. During the analysis and processing module analyzes the gas flow rate, the difference in gas flow rate between the upper and lower positions is calculated. When the difference is within the normal range, it indicates that the mesh holes of the screen plate 22 are not blocked. When the difference is greater than the normal range, it indicates that the mesh holes of the screen plate 22 are blocked. The analysis and processing module issues an operation instruction to the relay signal control module, so that the electromagnetic reversing valve 33 is reversed, and the compressed air of the compressed air station is taken in from the lower air connecting pipe 24, and then discharged through the upper air connecting pipe 24. The instantaneous air blowing force effectively flushes the baking soda powder blocks blocked in the mesh upward and discharges them through the flexible pipe 35 until the difference in gas flow rate between the upper and lower positions is within the normal range. The analysis and processing module issues an operation instruction to the steering CNC input module, so that the motor 28 drives the screw 29 to operate and the through holes of the strip 25 are aligned with the next row of meshes on the left, until the air blowing and cleaning of the leftmost row of meshes is completed. The analysis and processing module issues an operation instruction to the steering CNC input module, so that the motor 28 drives the screw 29 to operate and the strip 25 moves to the right and resets to the strip groove to stop.

[0028] Among them, the steering digital control input module is used to control the operation of motor 28, and the signal output pin of the steering digital control input module is connected to the driver signal input end of the driving motor 28 through a signal line; the relay signal control input module is used to control the operation of the electromagnetic reversing valve 33; the switch signal control input module is used to control the alternating operation of the ultrasonic vibrator 101, and the signal output pins of the switch signal output module and the relay signal control input module are connected to the signal input end of the integrated relay through a signal line.

[0029] It is worth noting that the analysis and processing module monitors the steering speed of the steering speed control module, and performs standard control instructions on the steering speed instruction module when the conveyor 25 reaches each adjacent ultrasonic vibrator 101 on the left and right. Each standard control instruction corresponds to a group of adjacent ultrasonic vibrators 101 operation start instructions in the switch signal control module. Therefore, when the conveyor 25 reaches between the adjacent ultrasonic vibrators 101 on the left and right, the analysis and processing module will send the standard control instruction to the switch signal control module, and the switch signal control module will start the ultrasonic generator corresponding to the two ultrasonic vibrators, and the two adjacent ultrasonic vibrators 101 on the left and right will operate. When the conveyor 25 leaves between the adjacent ultrasonic vibrators 101 on the left and right, the standard control instruction is lost, and the next standard control instruction is obtained. When the conveyor 25 resets to the right, the analysis and processing module does not send a standard control instruction to the switch signal control module.

[0030] See also Fig.12 The powder control module includes a powder concentration signal receiving module and a control signal receiving module. The powder concentration receiving module is used to receive the powder concentration value uploaded by the powder concentration detection head 102 in real time. The powder concentration signal receiving module and the control signal receiving module are connected to the analysis and processing module. The analysis and processing module is connected to the speed control module 1 and the speed control module 2. The analysis and processing module is used to receive the control information issued by the industrial control meter 52, and is also used to analyze the real-time input powder concentration value to control the speed control module 1 and the speed control module 2 to perform speed control operation; The speed control module 1 is used to control the speed of motor 12, and the signal output pin of the speed control module 1 is connected to the signal input end of the driver 53 that drives motor 12 through a signal line. The speed control module 2 is used to control the speed of motor 39, and the signal output pin of the speed control module 2 is connected to the signal input end of the driver 53 that drives motor 39 through a signal line.

[0031] Set the basic powder concentration to Eg / m 3 The basic speed of motor 12 is 1500r / min, and the basic speed of motor 39 is 2000r / min. When the real-time input powder concentration F≥E, the speed control module 1 and the speed control module 2 control the motor 12 and the motor 39 to keep the running speed unchanged; the real-time input powder concentration F<E, and every time it is lower than 20g / m3 The speed control module 1 increases the original basic speed control instruction by 50r / min, and the speed control module 2 increases the original basic speed control instruction by 80r / min. The upper limit of the speed control module 1 instruction is 2000r / min, and the upper limit of the speed control module 2 instruction is 2800r / min.

[0032] By speeding up the motor 12, the lateral swing speed of the screen plate 22 is increased, thereby improving the effect of screening and removing blocks, and by speeding up the motor 39, the spinning rod 44 and the stacking plate 45 rotate faster, and the powder blocks in the baking soda powder are broken up more effectively.

[0033] The working principle of this embodiment is as follows: Rotating and rubbing mechanism: The rubbing mechanism can effectively crush and rub the baking soda in the lower row to reduce the amount of lumps in the baking soda; Breathing mechanism: When the strip 25 is driven to move on the screen plate 22 by the breathing mechanism, the air permeability of each row of meshes of the screen plate 22 is detected, and the baking soda lumps in the meshes can be blown away by air; Control mechanism, rotary vibration force mechanism and rotary rubbing mechanism: The control mechanism determines the agglomeration situation according to the powder concentration of the lower row of the rotary rubbing mechanism, and controls the speed-up of the rotary vibration force mechanism and the rotary rubbing mechanism, so as to ensure the processing efficiency.

[0034] Control mechanism, ventilation mechanism: After the flap valve 48 is closed and no baking soda is discharged from the powder discharge pipe 5, the industrial computer 52 issues an operation command, and the motor 28 drives the lead screw 29 to move and stop the feed strip 25 at the upper and lower positions of the screen plate 22 with the spacing between two rows of mesh holes as the movement amount, and controls the electromagnetic reversing valve 33 to reverse, firstly performs gas flow rate detection, and then performs air blowing to remove powder blocks. During this process, the ultrasonic vibrator 101 is controlled to open and close according to the position of the feed strip 25 until completion. Through the operation of the ultrasonic vibrator 101 with front and rear position dislocation, the baking soda blocks in the mesh holes of the screen plate 22 can be accelerated to separate, which is conducive to rapid blowing out by air blowing.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A baking soda vibrating screen, characterized in that: It comprises a base (1), support piles (2) are arranged on both sides of the base (1), a support plate (3) is arranged on the top of the support pile (2), a lower hopper (4) is arranged in the middle of the support plate (3), and a powder discharge pipe (5) is connected to the lower end of the lower hopper (4); The front and rear sides of the support plate (3) are connected with connecting rods (6), and a top plate (7) is arranged on the top of the connecting rod (6); the top plate (7) is connected with a support ring (9) through a soft cover (8), and the support ring (9) is connected with the lower hopper (4) through the soft cover (8); A rotational vibration mechanism is provided on one side of the support plate (3), the rotational vibration mechanism is connected to one side of the support ring (9), and the rotational vibration mechanism is used to drive the screen plate (22) to shake laterally. A screen frame (21) is inserted into the support ring (9), and a screen plate (22) is arranged in the screen frame (21). A mounting groove is provided on one side of the support ring (9), and a mounting plate (23) is arranged in the mounting groove. The mounting plate (23) is connected to one side of the screen frame (21). A strip groove is provided on the upper and lower parts of one side of the mounting plate (23), and a running strip (25) is inserted in the strip groove. An air connection pipe (24) is inserted into the upper and lower parts of the plate (23); a collecting chamber (26) is provided in the running strip (25) and the air connection pipe (24) is communicated with the collecting chamber (26); through holes are evenly provided on the running strip (25) and are communicated with the collecting chamber (26); a ventilating plug (27) is provided in the through hole; a ventilating mechanism is provided on the mounting plate (23); the ventilating mechanism is used to push the running strip (25) to move along the screen plate (22), cooperate with the head strip (25) to detect the air permeability of the mesh of the screen plate (22), and ventilate and clean the mesh of the screen plate (22); An upper powder connecting pipe (36) is provided on the support plate (3), and an upper end of the upper powder connecting pipe (36) is connected to a rubbing mechanism, and the rubbing mechanism is used to rub the baking soda powder discharged from the lower end to the upper powder connecting pipe (36) in multiple layers; one end of the rubbing mechanism is connected to a flap valve (48), and one end of the flap valve (48) is connected to a top connecting pipe (49); A control mechanism is provided on one side of the base (1), and the control mechanism is used to control the operation of the rotational vibration force mechanism, the ventilation mechanism and the rotational rubbing mechanism.

2. A baking soda vibrating screen according to claim 1, characterized in that: The rotary vibration dynamic mechanism comprises a support frame (10) fixedly arranged on one side of a support plate (3); a top plate (11) is arranged on the top of the support frame (10); a motor (12) is arranged on the bottom of the top plate (11); a rotor shaft of the motor (12) passes through the top plate (11) and is connected to a rotary plate (13); a rotary shaft (14) is rotatably arranged on one side of the rotary plate (13); a support ring (15) is rotatably arranged on the rotary shaft (14); one side of the support ring (15) is connected to a fixed frame (17) via a connecting rod (16); a fixed shaft (18) is fixedly arranged on the fixed frame (17); and a support ring (19) is rotatably arranged on the fixed shaft (18); one side of the support ring (19) is connected to one side of the support ring (9) via a side shaft (20).

3. A baking soda vibrating screen according to claim 2, characterized in that: The ventilation mechanism comprises a second motor (28) on a mounting plate (23); a rotor shaft of the second motor (28) is connected to a lead screw (29); one end of the lead screw (29) is screwed to a receiving plate (30); upper and lower portions of the receiving plate (30) are provided with air holes, and an air connection pipe (24) is connected to the air hole; one end of the air hole is connected to a gas flow rate detector (31); one gas connection end of the gas flow rate detector (31) is connected to an electromagnetic reversing valve (33) via a middle connection pipe (32); one side gas connection end of the electromagnetic reversing valve (33) is connected to a connection pipe (34), and the connection pipe (34) is connected to a flexible connection pipe (35); one of the flexible connection pipes (35) is connected to a compressed gas station; and ultrasonic vibrators (101) are evenly arranged at the front and rear portions of the support ring (9).

4. A baking soda vibrating screen according to claim 3, characterized in that: The rotary rubbing mechanism comprises a powder concentration detection head (102) mounted on one side of the bottom of the upper powder receiving tube (36), the powder concentration detection head (102) being used to detect the concentration of baking soda discharged from the upper part of the upper powder receiving tube (36), the upper powder receiving tube (36) being provided with a sealed bearing (38), the outer ring of the sealed bearing (38) being provided with a rotary cover (37), the upper inner part of the rotary cover (37) being provided with a sealed bearing (38), and the inner ring of the sealed bearing (38) being provided with an upper pipe (42); Fixed scattering rods (43) are evenly arranged at the inner bottom of the upper pipe (42) and the inner upper part of the upper powder connecting pipe (36); rotating scattering rods (44) are evenly arranged at the upper and lower parts of the rotary cover (37); stacking plates (45) are evenly arranged in the circumferential direction in the rotary cover (37) and between the rotating scattering rods (44); side connecting plates (46) are connected to both sides of the upper pipe (42); and the bottom of the side connecting plates (46) is connected to the top plate (7) via a fixed support rod (47); A motor three (39) is disposed on one side of the support plate (3), a rotor shaft of the motor three (39) is provided with a gear (40), a gear ring (41) is disposed in the middle of the rotary cover (37), and the gear ring (41) is meshed with the gear (40); One end of the upper connecting pipe (42) is connected to the flap valve (48).

5. A baking soda vibrating screen according to any one of claims 1 to 4, characterized in that: The control mechanism comprises a connecting column (50) connected to one side of the base (1); a control box (51) is arranged on the top of the connecting column (50); an industrial computer (52) is installed on the panel of the control box (51); a driver (53) is arranged on one side of the control box (51); a development board (54) is arranged on the control box (51) and below the driver (53); a cleaning control module and a crushing control module are arranged on the development board (54); the cleaning control module is used to control the operation of the ventilation mechanism; and the crushing control module is used to control the operation of the rotational vibration force mechanism and the rotational rubbing mechanism.

6. A baking soda vibrating screen according to claim 5, characterized in that: The cleaning and control module comprises a gas flow rate signal receiving module and a control signal receiving module, wherein the gas flow rate signal receiving module is used to receive gas flow rate data input in real time by a gas flow rate detector (31), and the control signal receiving module is used to receive a control signal input by an industrial computer (52); The gas flow rate signal receiving module and the control signal receiving module are connected to the analysis and processing module, and the analysis and processing module is connected to the steering digital control module, the relay signal control module and the switch signal control module. The analysis and processing module is used to receive the start-up instruction of the industrial control computer (52), and analyze the gas flow rate data in real time, and when the real-time gas flow rate data is lower than the standard gas flow rate value, control the steering digital control module, the relay signal control module and the switch signal control module to operate; The steering digital control module is used to control the operation of the second motor (28), the relay signal control module is used to control the operation of the electromagnetic reversing valve (33), and the switch signal control module is used to control the alternating operation of the ultrasonic vibrator (101).

7. A baking soda vibrating screen according to claim 6, characterized in that: The powder control module comprises a powder concentration signal receiving module and a control signal receiving module, the powder concentration receiving module is used to receive the powder concentration value uploaded by the powder concentration detection head (102) in real time, the powder concentration signal receiving module and the control signal receiving module are connected to the analysis and processing module in transmission, the analysis and processing module is connected to the speed control module 1 and the speed control module 2 in transmission, the analysis and processing module is used to receive the control information issued by the industrial control meter (52), and is also used to analyze the powder concentration value input in real time to control the speed control module 1 and the speed control module 2 to perform speed control operation; The speed control module 1 is used to control the speed of the motor 1 (12), and the speed control module 2 is used to control the speed of the motor 3 (39).

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