A baking soda vibrating screen

Abstract

The present invention discloses a baking soda vibrating screen, belonging to the technical field of screening. It includes a base, with support piles arranged on both sides of the base and a support plate arranged at the top of the support piles. A feeding hopper is arranged in the middle of the support plate. A rotary vibration power mechanism is connected to one side of the support ring. A sieve frame is inserted into the support ring and a sieve mesh plate is arranged inside the sieve frame. The walking strip is evenly provided with through holes which are communicated with the collection cavity, and air-permeable plug heads are arranged in the through holes. An air-permeable mechanism is arranged on the mounting plate; a powder receiving pipe is arranged on the support plate, the upper end of the powder receiving pipe is connected with a rotary rubbing mechanism, one end of the rotary rubbing 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. By controlling the operation of the rotary rubbing mechanism through the control mechanism, the baking soda can be effectively broken and pulverized before contacting the sieve mesh plate, and under the control of the control mechanism for the air-permeable mechanism, the sieve holes of the sieve mesh plate can be more conveniently and effectively cleaned, which is a baking soda vibrating screen.

Description

Technical Field

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

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

[0003] The purpose of using a vibrating screen for screening is as follows: The baking soda is squeezed under high weight in the raised storage bin for a long time, and coupled with the trace moisture carried by the baking soda when it is discharged into the raised storage bin, this causes the baking soda powder in some areas to form a certain degree of caking. Through the setting of the vibrating screen, under the action of a high-frequency vibrating screen, the caked baking soda can be pulverized, thus effectively ensuring the quality of the packaged products.

[0004] Secondly, the advantage of choosing a vibrating screen compared to the air cyclone screen on the market is that: the amount of baking soda powder refined per unit time is more, and the equipment procurement cost is lower.

[0005] Currently, vibrating screens are mostly divided into two styles. The first one is that the screen frame is supported by an elastic base, and a feed hopper is arranged at the top of the screen frame. This feed hopper is used to connect to the bottom discharge pipe of the raised storage bin through a pipeline, and the high-frequency vibrator on the side of the screen frame plate runs, causing high-frequency vibration in the screen frame. The baking soda powder in the screen frame is vibrated and quickly discharged downward, and the caked baking soda is pulverized 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 amount per unit time is not much; the second one is different from the first one in that its bottom uses a fixed base, powered by a motor, and is supported on the screen frame in a wobbling manner. The motor drives the coupling mechanism to drive the screen frame to swing horizontally at a high speed, forming a horizontal swing vibration of the screen plate within a certain amplitude. This type of vibrating screen is suitable for use when the discharge amount per unit time is large, and compared with the first one, it has a better pulverizing effect on the caked baking soda, so it is also commonly used for the discharge screening work of large raised storage bins in factories.

[0006] However, this kind of vibrating screen with lateral oscillation also has certain problems: due to the limitation of the direction of driving the sieve plate, it cannot cause the sieve plate to vibrate in multiple dimensions like an exciter. Some baking soda powder lumps that are not effectively broken are likely to block the sieve holes of the sieve plate. Especially when there is a large amount of baking soda caking in the elevated storage bin, the amount of sieve hole blockage is large, reducing its fine screening efficiency. Therefore, it is necessary to regularly detach the sieve plate from the sieve frame, and then use an air blowing gun to clean the baking soda powder lumps in the sieve holes. After cleaning, the sieve plate needs to be reinstalled in the sieve frame, and the whole disassembly, installation and cleaning process is inconvenient.

[0007] Therefore, it is necessary to set up a baking soda vibrating screen that can effectively break and pulverize baking soda before contacting the sieve mesh and can more conveniently clean the sieve holes of the sieve mesh plate. Summary of the Invention

[0008] The purpose of the present invention is to provide a baking soda vibrating screen to solve the problems existing in the prior art.

[0009] To achieve the above purpose, the present invention provides the following technical solution: a baking soda vibrating screen, including a base, on both sides of the base are provided with support piles, and at the top of the support piles are provided with support discs. In the middle of the support disc is provided with a feeding hopper, and the lower end of the feeding hopper is connected with a powder discharge pipe;

[0010] On the front and back sides of the support disc are connected with connecting bars, and at the top of the connecting bars is provided with a top disc. The top disc is connected with a support ring through a soft cover, and the support ring is connected with the feeding hopper through a soft cover;

[0011] On one side of the support disc is provided with a rotary vibration power mechanism, which is connected to one side of the support ring. The rotary vibration power mechanism is used to drive the sieve mesh plate to vibrate horizontally. A sieve frame is inserted into the support ring, and a sieve mesh plate is arranged in the sieve frame. On one side of the support ring is provided with an installation groove, and in the installation groove is provided with an installation plate, which is connected to one side of the sieve frame. On the upper and lower parts of one side of the installation plate are provided with strip grooves, and in the strip grooves are inserted moving strips. The upper and lower parts of the installation plate are inserted with air connection pipes. The moving strip is provided with a collection cavity, and the air connection pipe is communicated with the collection cavity. The moving strip is evenly provided with through holes, which are communicated with the collection cavity. In the through holes are provided air permeable plug heads. An air permeable mechanism is arranged on the installation plate, which is used to push the moving strip to move along the sieve mesh plate, cooperate with the first strip to detect the air permeability of the mesh holes of the sieve mesh plate, and conduct air cleaning on the mesh holes of the sieve mesh plate;

[0012] On the support disc is provided with an upper powder receiving pipe, and the upper end of the upper powder receiving pipe is connected with a rotary rubbing mechanism, which is used to multi-layer rub and disperse the baking soda powder discharged downward to the upper powder receiving pipe; One end of the rotary rubbing mechanism is connected with a flap valve, and one end of the flap valve is connected with a top connecting pipe;

[0013] One side of the base is provided with a control mechanism for controlling the operation of the rotary vibration power mechanism, the ventilation mechanism, and the rotary rubbing mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the baking soda vibrating screen of the present invention, by controlling the operation of the rotary rubbing mechanism through the control mechanism, the baking soda can be effectively broken and pulverized before contacting the screen plate, and under the control of the control mechanism for the ventilation mechanism, the baking soda vibrating screen can more conveniently and effectively clean the screen holes of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view schematic diagram of the present invention;

[0017] Figure 2 is Figure 1 the partial sectional schematic diagram of

[0018] Figure 3 is Figure 2 the enlarged structural schematic diagram at position a of

[0019] Figure 4 is Figure 2 the enlarged structural schematic diagram at position b of

[0020] Figure 5 is Figure 2 the enlarged structural schematic diagram at position c of

[0021] Figure 6 is Figure 1 the enlarged structural schematic diagram at position d of

[0022] Figure 7 is Figure 2 the enlarged structural schematic diagram at position e of

[0023] Figure 8 is Figure 2 the enlarged structural schematic diagram at the control box in

[0024] Figure 9 is the distribution schematic diagram of the air permeable plugs of the present invention;

[0025] Figure 10 is the distribution schematic diagram of the rotary dispersing rods and the stacking plates in the present invention;

[0026] Figure 11 is the connection schematic diagram of each module in the cleaning control module of the present invention;

[0027] Figure 12 is the connection schematic diagram of each module in the crushing control module of the present invention;

[0028] In the figure: 1 base, 2 support piles, 3 support plates, 4 blanking hopper, 5 powder discharge pipe, 6 connecting rods, 7 top plates, 8 soft covers, 9 support rings, 10 support frames, 11 top plates, 12 first motor, 13 rotating plates, 14 rotating connecting shafts, 15 first support ring, 16 connecting rods, 17 fixing frames, 18 fixing shafts, 19 second support ring, 20 side shafts, 21 sieve frames, 22 sieve plates, 23 mounting plates, 24 connecting gas pipes, 25 running bars, 26 collecting chambers, 27 air permeable plug heads, 28 second motor, 29 lead screws, 30 receiving plates, 31 gas flow rate detectors, 32 middle connecting pipes, 33 electromagnetic reversing valves, 34 connecting pipes, 35 flexible connecting pipes, 36 upper powder connecting pipes, 37 rotating covers, 38 sealing bearings, 39 third motor, 40 gears, 41 toothed rings, 42 upper connecting pipes, 43 fixed dispersing rods, 44 rotating dispersing rods, 45 stacking plates, 46 side connecting plates, 47 fixed support rods, 48 flap valves, 49 top connecting pipes, 50 connecting columns, 51 control boxes, 52 industrial control computers, 53 drivers, 54 development boards, 101 ultrasonic vibrators, 102 powder concentration detection heads. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 , a baking soda vibrating screen, including a base 1, support piles 2 are bolted to the left and right sides of the base 1, and a support plate 3 is bolted to the top of the support piles 2. A blanking hopper 4 is bolted to the middle of the support plate 3. The lower end of the blanking hopper 4 is fixed with a powder discharge pipe 5 by a hose clamp. The powder discharge pipe 5 is a stainless steel iron sheet square pipe;

[0031] Connecting rods 6 are bolted to the front and rear sides of the support plate 3, and a top plate 7 is bolted to the top of the connecting rods 6. With such a setting, the support plate 3 fixes the top plate 7 together through the connecting rods 6. A soft cover 8 is riveted to the lower part of the top plate 7, and a support ring 9 is riveted to the lower end of the soft cover 8. The top plate 7 is communicated with the support ring 9 through the soft cover 8; the material of the soft cover 8 is fluororubber. The support ring 9 is riveted to the lower end of the soft cover 8, and the lower end of the soft cover 8 is riveted to the blanking hopper 4;

[0032] Through the soft cover 8 arranged in the up and down positions, without affecting the lateral swing of the support ring 9, the baking soda powder discharged from the upper part of the top plate 7 can be effectively discharged into the blanking hopper 4.

[0033] On one side of the support plate 3, a rotary vibration power mechanism is provided. The rotary vibration power mechanism is connected to the left side of the support ring 9. The rotary vibration power mechanism is used to drive the screen plate 22 to vibrate horizontally. The screen frame 21 is slidably inserted into the support ring 9, and the screen plate 22 is welded inside the screen frame 21. The mesh diameter of the screen plate 22 is 0.5 mm. An installation groove is provided on the right side of the support ring 9, and the installation plate 23 is slidably inserted and fixed with screws in the installation groove. The screen frame 21 is integrally provided on the left side of the installation plate 23. Strip grooves are provided in the upper and lower parts on the left side of the installation plate 23, and the running strip 25 is slidably inserted into the strip grooves. The connecting air pipes 24 are slidably inserted into the upper and lower parts of the installation plate 23. A collecting cavity 26 is provided in the running strip 25, and the connecting air pipes 24 communicate with the collecting cavity 26. The left end of the connecting air pipe 24 is threadedly and hermetically fixed to the right side of the running strip 25. Through holes are evenly provided on the running strip 25, and the through holes communicate with the collecting cavity 26. The front and rear adjacent through holes are the same as the mesh holes of the screen plate 22. An air permeable plug 27 is adhesively bonded in the through hole with sealant. The material of the air permeable plug 27 is fluororubber, and its size is set to meet the requirement that when the running strip 25 moves horizontally on the screen plate 22, the air permeable plug 27 effectively abuts against the screen plate 22, ensuring that the air permeable plug 27 is aligned with the mesh holes of the screen plate 22. An air permeable mechanism is provided on the installation plate 23. The air permeable mechanism is used to push the running strip 25 to move along the screen plate 22, cooperate with the running strip 25 to detect the air permeability of the mesh holes of the screen plate 22, and ventilate and clean the mesh holes of the screen plate 22;

[0034] Therefore, when the rotary vibration power mechanism stops running, when the air permeable mechanism drives the running strip 25 to move on the screen plate 22, the air permeability of each row of mesh holes of the screen plate 22 is detected, and the sodium bicarbonate powder blocks stored in the mesh holes can be blown and removed by air.

[0035] An upper powder receiving pipe 36 is integrally provided on the support plate 3. The upper powder receiving pipe 36 communicates with the soft cover 8; the upper end of the upper powder receiving pipe 36 is connected to a rotary rubbing mechanism. The rotary rubbing mechanism is used to rub and disperse the sodium bicarbonate powder from the lower row to the upper powder receiving pipe 36 in multiple layers; the upper end of the rotary rubbing mechanism is flange-connected to a flap valve 48. The upper end of the flap valve 48 is flange-connected to a top connection pipe 49. The top connection pipe 49 is used to flange-connect to the bottom discharge pipe of the elevated storage bin;

[0036] When the flap valve 48 is opened, the sodium bicarbonate powder in the elevated storage bin is discharged to the screen frame 21 through the top connection pipe 49, the rotary rubbing mechanism, and the upper powder receiving pipe 36. During this process, the rotary rubbing mechanism can effectively rub and break the discharged sodium bicarbonate powder, reducing the amount of agglomerates in the sodium bicarbonate powder.

[0037] A control mechanism is installed on the right side of the base 1. The control mechanism is used to control the operation of the rotary vibration power mechanism, the air permeable mechanism, and the rotary rubbing mechanism.

[0038] Refer to Figure 1 、 Figure 2 and Figure 3, the rotary vibration power mechanism includes a support frame 10 bolted to the left side of the support plate 3. The top of the support frame 10 is bolted with a top plate 11. The bottom of the top plate 11 is bolted with a first motor 12. The first motor 12 is a high-speed motor. The rotor shaft of the first motor 12 passes through the top plate 11 and is flange-connected to the center position at the bottom of the rotary plate 13. The right side of the rotary plate 13 is press-fitted into a bearing. The inner ring of the bearing is press-fitted into the rotary shaft 14. A top bearing is press-fitted onto the rotary shaft 14. A first support ring 15 is press-fitted onto the top bearing. A connecting rod 16 is bolted to the right side of the first support ring 15. A fixed frame 17 is integrally provided at the right end of the fixed connecting rod 16. A fixed shaft 18 is bolted to the fixed frame 17. A bearing for rotation is press-fitted onto the fixed shaft 18. The outer ring of the bearing for rotation is press-fitted onto a second support ring 19. A side shaft 20 is bolted to the right side of the second support ring 19. The right end of the side shaft 20 is bolted to the middle part on the left side of the support ring 9.

[0039] When the first motor 12 operates, it drives the rotary plate 13 to rotate, causing the rotary shaft 14 to rotate with the center of the rotary plate 13 as the radius. Under the linkage of the first support ring 15, the connecting rod 16, the fixed frame 17, the second support ring 19 and the side shaft 20, it drives the support ring 9 to swing horizontally at high speed, causing the sieve frame 21 and the sieve plate 22 to swing horizontally. As a result, the baking soda falling on the sieve plate 22 quickly drains through the mesh holes under the action of the horizontal swing. The caked powder particles in the baking soda powder are pulverized under the impact and rolling of the materials during the horizontal swing process.

[0040] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10 , the air permeability mechanism includes a second motor 28 bolted to the right side of the mounting plate 23. The second motor 28 is a stepper motor. The rotor shaft of the second motor 28 is press-fitted and key-connected to a lead screw 29. The right end of the lead screw 29 is screwed to a receiving plate 30. Air holes are provided in the upper and lower parts of the receiving plate 30, and an air pipe 24 is seamlessly welded to the left end of the air holes, so that the air pipe 24 is communicated with the air holes. A joint is screwed to the right end of the air hole. The joint is flange-connected to a gas flow rate detector 31. The right air connection end of the gas flow rate detector 31 is connected to the left air connection end of an electromagnetic reversing valve 33 through a middle pipe 32. The control position input end of the electromagnetic reversing valve 33 is connected to the potential output end of an integrated relay through a cable. The right air connection end of the electromagnetic reversing valve 33 is connected to a connecting pipe 34, and the connecting pipe 34 is connected to a flexible pipe 35. One of the flexible pipes 35 is connected to a compressed gas station. The electromagnetic reversing valve 33 is a four-way three-way valve.

[0041] The operation of the second motor 28 drives the lead screw 29 to rotate, thereby driving the strip 25 at the upper and lower positions to move left and right in cooperation with the air intake pipe 24, so as to align the air-permeable plug 27 on the strip 25 with each row of mesh holes; by controlling the electromagnetic reversing valve 33, the air intake and exhaust directions of the air intake pipes 24 at the upper and lower positions are swapped. When the lower air intake pipe 24 intakes air, the upper air intake pipe 24 exhausts air, which is the action of removing the baking soda powder blocks in the mesh holes. When the lower air intake pipe 24 discharges air, the upper air intake pipe 24 intakes air, which is the action of gas flow rate detection.

[0042] The ultrasonic vibrators 101 are evenly screwed at the front and rear parts of the support ring 9, and the ultrasonic vibrators 101 at the front and rear positions are staggered by 5 cm from each other. The transmission lines of the ultrasonic vibrators 101 are connected to the high-frequency electrical signal output terminals of the external ultrasonic transducer station. The control connection terminals of each ultrasonic transducer of the ultrasonic transducer station are connected to the potential output posts of the external integrated relay through cables. The power input posts of the integrated relay are connected to the external power supply through cables. The vibration transmission ends of the ultrasonic vibrators 101 are all in contact with the side parts of the sieve frame 21.

[0043] By controlling the operation of the ultrasonic transducers in the ultrasonic transducer station, the ultrasonic vibrators 101 can be turned on and off according to the position of the strip 25. Specifically, when the strip 25 moves between the adjacent ultrasonic vibrators 101 on the left and right, the adjacent ultrasonic vibrators 101 operate, and the ultrasonic vibrators 101 at other positions are turned off.

[0044] With such a setting, the ultrasonic waves generated by the operation of the ultrasonic vibrators 101 in other areas are prevented from weakening the ultrasonic waves in the area of the strip 25, and secondly, the operating energy consumption can be reduced.

[0045] Through the operation of the ultrasonic vibrators 101 with staggered front and rear positions, the baking soda powder blocks in the mesh holes of the sieve plate 22 can be accelerated to break away, which is conducive to being quickly blown out by means of air blowing.

[0046] Refer to Figure 1 、 Figure 2 、 Figure 7 As shown in

[0047] 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;

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] See also Figure 11, the cleaning 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 control computer 52. The signal input pin of the control signal receiving module is connected to the signal output end of the industrial control computer 52 through a signal line;

[0053] The gas flow rate signal receiving module and the control signal receiving module are connected to the analysis and processing module in a transmission manner. The analysis and processing module is connected to the steering and rotation numerical control output module, the relay signal control output module, and the switch signal control output module in a transmission manner. The analysis and processing module is used to receive the start instruction of the industrial control computer 52, analyze the gas flow rate data in real time, and control the operation of the steering and rotation numerical control output module, the relay signal control output module, and the switch signal control output module when the real-time gas flow rate data is lower than the standard gas flow rate value;

[0054] First, the industrial control computer 52 issues a cleaning control instruction. The analysis and processing module issues an operation instruction to the steering and rotation numerical control output module, so that the motor two 28 drives the lead screw 29 to run, and the moving bar 25 moves according to the pitch between two adjacent rows of mesh holes on the sieve plate 22 horizontally and then stops. Therefore, the through holes in one row of the moving bar 25 are aligned with one row of mesh holes on the sieve plate 22 one by one, and an operation instruction is issued to the relay signal control output module to make the electromagnetic reversing valve 33 change its direction. The compressed air from the compressed air station enters through the upper air intake pipe 24 and then is discharged through the lower air intake pipe 24. During the process of the analysis and processing module analyzing 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 sieve plate 22 are not blocked. When the difference is greater than the normal range, it indicates that the mesh holes of the sieve plate 22 are blocked. The analysis and processing module issues an operation instruction to the relay signal control output module to make the electromagnetic reversing valve 33 change its direction. The compressed air from the compressed air station enters through the lower air intake pipe 24 and then is discharged through the upper air intake pipe 24. The instantaneous air blowing force effectively blows the baking soda powder blocks blocked in the mesh holes upward and discharges them through the flexible connecting 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 and rotation numerical control output module to make the motor two 28 drive the lead screw 29 to run, so that the through holes of the moving bar 25 are aligned with the left lower row of mesh holes until the air blowing cleaning of the leftmost row of mesh holes is completed. The analysis and processing module issues an operation instruction to the steering and rotation numerical control output module to make the motor two 28 drive the lead screw 29 to run, so that the moving bar 25 moves to the right and resets to stop in the strip groove.

[0055] Among them, the steering rotation numerical control input module is used to control the operation of the second motor 28. The signal output pin of the steering rotation numerical control input module is connected to the signal input end of the driver that drives the operation of the second 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 vibrators 101. 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 signal lines.

[0056] It should be noted that the analysis and processing module monitors the steering rotation speed of the steering rotation numerical control input module, and conducts standard control guidance on the steering rotation speed instruction modulus when the strip 25 reaches between each adjacent left and right ultrasonic vibrators 101. Each standard control guidance corresponds to a set of start instructions for the operation of adjacent ultrasonic vibrators 101 in the switch signal control input module. Therefore, when the strip 25 reaches between the adjacent left and right ultrasonic vibrators 101, the analysis and processing module will send this standard control guidance to the switch signal control input module. The switch signal control input module issues an order to start the ultrasonic generators connected to these two ultrasonic vibrators, and the adjacent left and right ultrasonic vibrators 101 operate. When the strip 25 leaves between the adjacent left and right ultrasonic vibrators 101, this standard control guidance is lost, and the next standard control guidance is obtained; when the strip 25 moves to the right for the reset action, the analysis and processing module does not send the standard control guidance to the switch signal control input module.

[0057] Refer to Figure 12 , the crushing control module includes a powder concentration signal receiving module and a control signal receiving module. The powder concentration signal 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 a transmission manner. The analysis and processing module is connected to the first rotation speed control module and the second rotation speed control module in a transmission manner. The analysis and processing module is used to receive the control information issued by the industrial control computer 52, and is also used to analyze the real-time input powder concentration value and control the first rotation speed control module and the second rotation speed control module to perform rotation speed control operations;

[0058] The first rotation speed control module is used to control the rotation speed of the first motor 12. The signal output pin of the first rotation speed control module is connected to the signal input end of the driver 53 that drives the first motor 12 through a signal line. The second rotation speed control module is used to control the rotation speed of the third motor 39. The signal output pin of the second rotation speed control module is connected to the signal input end of the driver 53 that drives the third motor 39 through a signal line.

[0059] Set the basic powder concentration to Eg / m 3, the base speed of Motor 1 is 1500 r / min, and the base speed of Motor 3 is 2000 r / min. When the powder concentration F input in real time is ≥ E, the first speed control module and the second speed control module control Motor 1 and Motor 3 to maintain their running speeds unchanged; when the powder concentration F input in real time is < E, and it is lower than 20 g / m each time 3 , the first speed control module increases the base speed control instruction by 50 r / min, and the second speed control module increases the base speed control instruction by 80 r / min. Among them, the instruction upper limit of the first speed control module is 2000 r / min, and the instruction upper limit of the second speed control module is 2800 r / min.

[0060] By accelerating Motor 1, the lateral swing speed of the screen plate 22 is increased, thereby improving the effect of screening and removing blocks. By accelerating Motor 3, the rotating speeds of the swirling rod 44 and the stacking plate 45 are made faster, and the powder blocks in the baking soda powder are more effectively crushed.

[0061] The working principle of this embodiment is as follows:

[0062] Rotary rubbing mechanism: The rubbing mechanism can effectively rub the baking soda powder in the lower row, reducing the amount of agglomerates in the baking soda powder;

[0063] Ventilation mechanism: When the ventilation mechanism drives the moving strip 25 to move on the screen plate 22, the ventilation of each row of mesh holes of the screen plate 22 is detected, and the baking soda powder blocks stored in the mesh holes can be removed by air blowing;

[0064] Control mechanism, rotary vibration power mechanism and rotary rubbing mechanism: The control mechanism determines the agglomeration situation according to the powder concentration in the lower row of the rotary rubbing mechanism, and controls the acceleration of the operation of the rotary vibration power mechanism and the rotary rubbing mechanism, so as to ensure the processing efficiency.

[0065] Control mechanism, ventilation mechanism: After the flap valve 48 runs and closes the valve, and when no baking soda powder is discharged from the powder discharge pipe 5, the industrial control computer 52 issues a running instruction, and Motor 2 drives the lead screw 29 to run, so that the moving strip 25 moves and stops on the screen plate 22 at a moving amount of the distance between two rows of mesh holes, and controls the electromagnetic reversing valve 33 to reverse. First, the gas flow rate is detected, and then the powder blocks are removed by air blowing. During this process, the ultrasonic oscillator 101 is controlled to open and close according to the position of the moving strip 25 until it is completed. Under the operation of the ultrasonic oscillator 101 with front and rear position misalignment, the baking soda powder blocks in the mesh holes of the screen plate 22 can be accelerated to break away, which is beneficial to quickly blowing out by air blowing.

[0066] The above is only a preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention.

Claims

1. A baking soda vibrating screen, characterized in that: It includes a base (1), support piles (2) are arranged on both sides of the base (1), and a support plate (3) is arranged at the top of the support piles (2). A blanking 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 blanking hopper (4). Connecting bars (6) are connected to the front and rear sides of the support plate (3), and a top plate (7) is arranged at the top of the connecting bars (6). A support ring (9) is connected to the top plate (7) through a flexible cover (8), and the support ring (9) is connected to the blanking hopper (4) through the flexible cover (8). A rotary vibration power mechanism is arranged on one side of the support plate (3). The rotary vibration power mechanism is connected to one side of the support ring (9). The rotary vibration power mechanism is used to drive the sieve plate (22) to vibrate horizontally. A sieve frame (21) is inserted into the support ring (9), and a sieve plate (22) is arranged in the sieve frame (21). An installation groove is opened on one side of the support ring (9), and an installation plate (23) is arranged in the installation groove. The installation plate (23) is connected to one side of the sieve frame (21). Strip grooves are opened at the upper and lower parts on one side of the installation plate (23), and a running strip (25) is inserted into the strip grooves. Connecting air pipes (24) are inserted into the upper and lower parts of the installation plate (23). A collecting cavity (26) is arranged in the running strip (25), and the connecting air pipes (24) are communicated with the collecting cavity (26). Through holes are evenly arranged on the running strip (25), and the through holes are communicated with the collecting cavity (26). Air permeable plug heads (27) are arranged in the through holes. An air permeable mechanism is arranged on the installation plate (23). The air permeable mechanism is used to push the running strip (25) to move along the sieve plate (22), cooperate with the running strip (25) to detect the air permeability of the mesh holes of the sieve plate (22), and ventilate and clean the mesh holes of the sieve plate (22). An upper powder receiving pipe (36) is arranged on the support plate (3). The upper end of the upper powder receiving pipe (36) is connected with a rotary rubbing mechanism. The rotary rubbing mechanism is used to rub and disperse the baking soda powder discharged to the upper powder receiving pipe (36) in multiple layers. One end of the rotary rubbing mechanism is connected with a flap valve (48), and one end of the flap valve (48) is connected with a top connecting pipe (49). A control mechanism is arranged on one side of the base (1). The control mechanism is used to control the operation of the rotary vibration power mechanism, the air permeable mechanism and the rotary rubbing mechanism.

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

3. A baking soda vibrating screen according to claim 2, characterized in that: The air-permeable mechanism includes a second motor (28) on the mounting plate (23). The 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). The upper and lower parts of the receiving plate (30) are provided with air holes, and the air connecting pipe (24) is communicated with the air holes. One end of the air hole is connected to a gas flow rate detector (31). One air connection end of the gas flow rate detector (31) is connected to an electromagnetic reversing valve (33) through an intermediate connecting pipe (32). One side air connection end of the electromagnetic reversing valve (33) is connected to a connecting pipe (34), and the connecting pipe (34) is connected to a flexible connecting pipe (35). One of the flexible connecting pipes (35) is connected to a compressed gas station. Ultrasonic vibrators (101) are uniformly arranged at the front and rear parts of the support ring (9).

4. The baking soda vibrating screen according to claim 3, characterized in that: The rotating and rubbing mechanism includes a powder concentration detection head (102) installed on one side of the bottom of the upper powder receiving pipe (36). The powder concentration detection head (102) is used to detect the concentration of baking soda powder discharged from the upper part of the upper powder receiving pipe (36). A sealing bearing (38) is arranged on the upper powder receiving pipe (36). A rotating cover (37) is sleeved on the outer ring of the sealing bearing (38). A sealing bearing (38) is arranged in the upper part of the rotating cover (37), and an upper connecting pipe (42) is arranged on the inner ring of the sealing bearing (38); Fixed dispersion rods (43) are uniformly arranged at the inner bottom of the upper connecting pipe (42) and the inner upper part of the upper powder receiving pipe (36). Rotating dispersion rods (44) are uniformly arranged at the upper and lower parts in the rotating cover (37). Stacking plates (45) are circumferentially and uniformly arranged in the rotating cover (37) and between the rotating dispersion rods (44). Both sides of the upper connecting pipe (42) are connected to side connecting plates (46). The bottom of the side connecting plates (46) is connected to the top plate (7) through fixed support rods (47); A third motor (39) is arranged on one side of the support disc (3). A gear (40) is arranged on the rotor shaft of the third motor (39). A toothed ring (41) is arranged in the middle of the rotating cover (37), and the toothed ring (41) meshes with the gear (40); One end of the upper connecting pipe (42) is connected to a flap valve (48).

5. A baking soda vibrating screen according to claim 3 or 4, characterized in that: The control mechanism includes a connecting column (50) connected to one side of the base (1). A control box (51) is arranged at the top of the connecting column (50). An industrial control computer (52) is installed on the panel of the control box (51). A driver (53) is arranged on one side in the control box (51). A development board (54) is arranged at a position below the driver (53) in the control box (51). 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 air-permeable mechanism. The crushing control module is used to control the operation of the rotary vibration power mechanism and the rotating and rubbing mechanism.

6. A baking soda vibrating screen according to claim 5, characterized in that: The cleaning 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 control signal receiving module is used to receive the control signal input by the industrial control computer (52); The gas flow rate signal receiving module and the control signal receiving module are connected to an analysis and processing module in a transmission manner. The analysis and processing module is connected to a steering and rotation numerical control output module, a relay signal control output module, and a switch signal control output module in a transmission manner. The analysis and processing module is used to receive the startup instruction of the industrial control computer (52), analyze the gas flow rate data in real time, and control the operation of the steering and rotation numerical control output module, the relay signal control output module, and the switch signal control output module when the real-time gas flow rate data is lower than the standard gas flow rate value; Among them, the steering and rotation numerical control output module is used to control the operation of the second motor (28), the relay signal control output module is used to control the operation of the electromagnetic reversing valve (33), and the switch signal control output module is used to control the alternating operation of the ultrasonic oscillator (101).

7. A baking soda vibrating screen according to claim 6, characterized in that: The crushing control module includes a powder concentration signal receiving module and a control signal receiving module. The powder concentration signal 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 an analysis and processing module in a transmission manner. The analysis and processing module is connected to a first rotation speed control module and a second rotation speed control module in a transmission manner. The analysis and processing module is used to receive the control information issued by the industrial control computer (52), and is also used to analyze the real-time input powder concentration value and control the first rotation speed control module and the second rotation speed control module to perform rotation speed control operations; The first rotation speed control module is used to control the rotation speed of the first motor (12), and the second rotation speed control module is used to control the rotation speed of the third motor (39).

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