A dust water film dust removal and separation device for granular threonine production

Abstract

The present invention discloses a dust water film dust removal and separation device for granular threonine production, comprising an air suction device, a centrifugal dust removal device, a water film dust removal device and a wastewater treatment device, wherein the air suction device comprises an air suction pipe, an air collecting hood is fixedly arranged at the lower end of the air suction pipe, a first fan is fixedly arranged in the air suction pipe through a first connecting rod, the centrifugal dust removal device comprises a cylinder, an end of the air suction pipe away from the air collecting hood is fixedly connected to one side of the upper end of the cylinder, a dust collecting hopper is fixedly arranged at the lower end of the cylinder, an air outlet pipe is fixedly arranged at the middle part of the upper wall of the cylinder, and the water film dust removal device comprises a box body. Beneficial effects: large particles of dust can be removed by centrifugation first, and finer dust can be removed by water film, and bacteria in the air can be removed by ultraviolet sterilization lamp, and water can be recycled and threonine solution can be recovered, thereby saving a large amount of water and threonine.

Description

Technical Field

[0001] The invention relates to the field of dust treatment devices, and in particular to a dust water film dust removal and separation device for granular threonine production. Background Art

[0002] Threonine is an essential amino acid. It is mainly used in medicine, chemical reagents, food fortifiers, feed additives, etc. In particular, the amount of feed additives has increased rapidly. It is often added to the feed of underage piglets and poultry. It is the second limiting amino acid in pig feed and the third limiting amino acid in poultry feed. Adding L-threonine to compound feed has the following characteristics: 1. It can adjust the amino acid balance of feed and promote the growth of poultry and livestock; 2. It can improve meat quality; 2. It can improve the nutritional value of feed with low amino acid digestibility; 4. It can reduce the cost of feed raw materials; therefore, it has been widely used in the feed industry in EU countries (mainly Germany, Belgium, Denmark, etc.) and American countries.

[0003] In the production of granular threonine, due to the extraction method and material properties, a certain amount of dust will be generated in the packaging workshop. Once the dust concentration reaches a certain concentration, it will cause safety hazards. At present, according to the different properties of dust, China has developed dust removal technologies such as bag dust removal, cyclone dust removal, gravity sedimentation and inertial dust removal, wet dust removal, and electrostatic dust removal.

[0004] However, the existing dust removal device has a poor dust removal effect, and the equipment is difficult to maintain during use. Although the existing water film dust removal device has a good dust removal effect, it requires a large amount of water resources to be wasted. Threonine is soluble in water. If the water is directly recycled, the threonine dust removal effect will become worse. However, directly discharging the threonine aqueous solution will waste a large amount of water and threonine, and the environmental pollution is also relatively serious. Summary of the invention

[0005] The object of the present invention is to provide a dust water film dust removal and separation device for granular threonine production to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dust water film dust removal and separation device for granular threonine production comprises an air suction device, a centrifugal dust removal device, a water film dust removal device and a wastewater treatment device, the air suction device comprises an air suction pipe, an air collecting hood is fixedly provided at one end of the air suction pipe, a first fan is fixedly provided in the air suction pipe through a first connecting rod, the centrifugal dust removal device comprises a cylinder, an end of the air suction pipe away from the air collecting hood is fixedly connected to one side of the upper end of the cylinder, a dust collecting hopper is fixedly provided under the cylinder, an air outlet pipe is fixedly provided in the middle of the upper wall of the cylinder, and the water film dust removal device comprises The box body includes a housing, the end of the air outlet pipe away from the cylinder is connected to one side of the upper end of the box body, the inner wall of the box body near the upper end is fixedly embedded with a plurality of atomizing nozzles, the inner wall of the upper end of the box body is fixedly provided with an ultraviolet sterilization lamp, the inner wall of the box body near the lower end is fixedly provided with a fine filter, the inner wall of one side of the box body is fixedly provided with a water immersion sensor, the middle side of the box body is fixedly provided with an exhaust pipe, the exhaust pipe is fixedly provided with a waterproof breathable membrane in the inner wall near one end of the box, the exhaust pipe is fixedly provided with a second fan near the inner wall of the upper end through a second connecting rod, and the outer wall of the box body is fixedly provided with a controller, a display screen, a control panel and an alarm A first water pump is connected to one side of the lower end of the box body through a first water pipe, and the first water pipe is connected to the input end of the first water pump. The wastewater treatment device includes a support plate, a clean water discharge pipe and a concentrated liquid discharge pipe are fixedly embedded in the middle of the support plate, and a plurality of ultrafiltration membrane devices are installed between the clean water discharge pipe and the concentrated liquid discharge pipe. The input ends of the ultrafiltration membrane devices are connected to the output ends of the first water pump through second water pipes. A clean water storage box and a concentrated liquid storage box are fixedly provided on the outer wall of one side of the support plate. The clean water discharge pipe extends into the clean water storage box at one end away from the ultrafiltration membrane device. The concentrated liquid discharge pipe One end away from the ultrafiltration membrane device extends into the concentrate storage tank, a drain pipe is fixedly provided on one side of the lower end of the concentrate storage tank, a first valve is installed in the middle of the drain pipe, a second water pump is fixedly provided on one side of the upper end of the support plate, the input end of the second water pump is connected to the clean water storage tank through a third water pipe, the atomizing nozzles are connected to the output end of the second water pump through a fourth water pipe, the first fan, the ultraviolet sterilization lamp, the second fan, the first water pump, the second water pump, the water immersion sensor, the display screen, the control panel and the alarm are all electrically connected to the controller.

[0007] Furthermore, a circular ring is fixedly provided on the outer wall of the middle part of the dust collecting hopper, and three supporting columns are fixedly provided at the lower end of the circular ring at equal intervals along the circumferential direction.

[0008] Furthermore, a visual window is provided on the front side of the cylinder, a dust exhaust pipe is fixedly provided under the dust collecting hopper, and a second valve is installed in the middle of the dust exhaust pipe.

[0009] Furthermore, the water immersion sensor is located above the fine filter and below the exhaust pipe.

[0010] Furthermore, a placement net is fixedly provided near the upper inner wall of the exhaust pipe, and the placement net is located above the second water pump. Granular activated carbon is provided on the placement net. A limiting cover is threadedly connected to the upper end of the exhaust pipe, and a limiting net is fixedly embedded on the upper wall of the limiting cover.

[0011] Furthermore, a mounting plate is fixedly provided under the support plate, and mounting holes are provided under four corners of the mounting plate.

[0012] Furthermore, a cleaning port is opened on one side of the middle portion of the box body, a cover plate is fixedly provided on the outer wall of the cleaning port by bolts, and a sealing gasket is fixedly provided on the inner wall of the cover plate.

[0013] Furthermore, a first float type liquid level sensor is installed in the clean water storage tank, the first float type liquid level sensor is electrically connected to the controller, a water inlet is fixedly provided on the clean water storage tank, and a sealing cover is threadedly connected to the water inlet.

[0014] Furthermore, a second float type liquid level sensor is installed in the concentrated liquid storage tank, and the second float type liquid level sensor is electrically connected to the controller.

[0015] Furthermore, the ultrafiltration membrane device includes a shell, an ultrafiltration membrane is arranged in the shell, a clean water outlet is opened at the upper end of the shell, and the clean water outlets are connected to the clean water discharge pipe, a concentrate outlet is opened at the lower end of the shell, and the concentrate outlets are connected to the concentrate discharge pipe, a water inlet is arranged on one side near the upper end of the shell, and the water inlet is connected to the output end of the first water pump through a second water pipe, and an ultrasonic generator is fixedly provided on the outer wall of one side in the middle of the shell, and the ultrasonic generator is electrically connected to the controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention is provided with a dust suction device, a centrifugal dust removal device, a water film dust removal device and a wastewater treatment device, which can first use centrifugal to remove larger dust particles, and then use a water film to remove finer dust. It can also use an ultraviolet sterilization lamp to remove bacteria in the air, and can recycle water and recover threonine solution, thereby saving a large amount of water and threonine.

[0018] (2) The present invention can support the dust hopper by providing a circular ring and a support column.

[0019] (3) The present invention provides a visual window, a dust exhaust pipe and a second valve, so that the dust accumulation in the cylinder can be observed through the visual window. When the dust accumulation is large, the second valve can be opened to discharge the dust for purification and recovery of threonine.

[0020] (4) The present invention can purify the gas in the exhaust duct by using the granular activated carbon, by providing a placement net, granular activated carbon, a limiting cover and a limiting net, so that the exhausted air has a higher purity, and the granular activated carbon can be regularly replaced by opening the limiting cover.

[0021] (5) The present invention can be used for installation and fixation of the support plate by providing the installation plate and the installation hole.

[0022] (6) The present invention provides a cleaning port, a cover plate and a sealing gasket, so that when the fine filter is clogged, the cover plate can be opened to clean the fine filter, and the sealing gasket can increase the sealing between the cover plate and the cleaning port.

[0023] (7) The present invention can use the first float type liquid level sensor to detect the liquid level in the clean water storage tank by setting a first float type liquid level sensor, a water filling port and a sealing cover. When the liquid level in the clean water storage tank is low, the controller can automatically control the alarm to sound an alarm to remind the staff to add water from the water filling port.

[0024] (8) The present invention can use the second float type liquid level sensor to detect the liquid level in the concentrate storage tank. When the liquid level in the concentrate storage tank is high, the controller can automatically control the alarm to sound an alarm, reminding the staff to open the first valve in time to recover the concentrate in the concentrate storage tank and purify threonine.

[0025] (9) The present invention provides an ultrafiltration membrane device, which can utilize the ultrafiltration membrane to filter and purify the solution discharged from the box body. The clean water after filtration flows into the clean water storage tank for recycling, and the concentrated solution after filtration flows into the concentrated solution storage tank. When the ultrafiltration membrane is cleaned, the dirt that has penetrated into the pores of the ultrafiltration membrane can be knocked down due to the effect of ultrasonic vibration and carried away by the concentrated solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1The present invention is a schematic structural diagram of a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0028] Figure 2 It is a cross-sectional view of a box in a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0029] Figure 3 It is a cross-sectional view of an exhaust duct in a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0030] Figure 4 It is a cross-sectional view of an air intake duct in a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0031] Figure 5 The figure is a top view of a cylinder in a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0032] Figure 6 It is a schematic structural diagram of an ultrafiltration membrane device in a dust water film dust removal and separation device for granular threonine production according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1. Air intake duct; 2. Air collecting hood; 3. First connecting rod; 4. First fan; 5. Cylinder; 6. Dust hopper; 7. Exhaust pipe; 8. Box; 9. Atomizing nozzle; 10. Ultraviolet sterilization lamp; 11. Fine filter; 12. Water immersion sensor; 13. Exhaust duct; 14. Waterproof breathable membrane; 15. Second connecting rod; 16. Second fan; 17. Controller; 18. Display screen; 19. Control panel; 20. Alarm; 21. First water pipe; 22. First water pump; 23. Support plate; 24. Clean water discharge pipe; 25. Concentrate discharge pipe; 26. Second water pipe; 27. Clean water Water storage tank; 28, concentrate storage tank; 29, drain pipe; 30, first valve; 31, second water pump; 32, third water pipe; 33, fourth water pipe; 34, ring; 35, support column; 36, visual window; 37, second valve; 38, placement net; 39, granular activated carbon; 40, limit cover; 41, mounting plate; 42, cover plate; 43, first float type liquid level sensor; 44, water inlet; 45, second float type liquid level sensor; 46, shell; 47, ultrafiltration membrane; 48, clean water outlet; 49, concentrate outlet; 50, water inlet; 51, ultrasonic generator. DETAILED DESCRIPTION

[0035] The following will be combined with the attached Figure 1 To Attachment Figure 6The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1-6According to an embodiment of the present invention, a dust water film dust removal and separation device for granular threonine production includes an air intake device, a centrifugal dust removal device, a water film dust removal device and a wastewater treatment device. The air intake device includes an air intake pipe 1, an air collecting hood 2 is fixedly provided at one end of the air intake pipe 1, a first fan 4 is fixedly provided in the air intake pipe 1 through a first connecting rod 3, the centrifugal dust removal device includes a cylinder 5, the end of the air intake pipe 1 away from the air collecting hood 2 is fixedly connected to one side of the upper end of the cylinder 5, a dust collecting hopper 6 is fixedly provided under the cylinder 5, an air outlet pipe 7 is fixedly provided in the middle of the upper wall of the cylinder 5, the water film dust removal device includes a box 8, and the air outlet pipe 7 is connected to the box 8 at one end away from the cylinder 5. The upper end side is connected, the box body 8 is fixedly embedded with a plurality of atomizing nozzles 9 near the upper inner wall, the upper inner wall of the box body 8 is fixedly provided with an ultraviolet sterilization lamp 10, the box body 8 is fixedly provided with a fine filter 11 near the lower inner wall, the inner wall of one side of the box body 8 is fixedly provided with a water immersion sensor 12, the middle side of the box body 8 is fixedly provided with an exhaust pipe 13, the exhaust pipe 13 is fixedly provided with a waterproof breathable membrane 14 near one end of the box body 8, the exhaust pipe 13 is fixedly provided with a second fan 16 near the upper inner wall through a second connecting rod 15, the outer wall of the box body 8 is fixedly provided with a controller 17, a display screen 18, a control panel 19 and an alarm 20, and the lower end side of the box body 8 is connected through a first water pipe 21 There is a first water pump 22 and the first water pipe 21 is connected to the input end of the first water pump 22, the wastewater treatment device includes a support plate 23, a clean water discharge pipe 24 and a concentrated liquid discharge pipe 25 are fixedly embedded in the middle of the support plate 23, a plurality of ultrafiltration membrane 47 devices are installed between the clean water discharge pipe 24 and the concentrated liquid discharge pipe 25, the input end of the ultrafiltration membrane device is connected to the output end of the first water pump 22 through a second water pipe 26, a clean water storage tank 27 and a concentrated liquid storage tank 28 are fixedly provided on the outer wall of one side of the support plate 23, the clean water discharge pipe 24 extends into the clean water storage tank 27 away from the end of the ultrafiltration membrane device, and the concentrated liquid discharge pipe 25 extends into the end away from the end of the ultrafiltration membrane device Inside the concentrate storage tank 28, a drain pipe 29 is fixedly provided on one side of the lower end of the concentrate storage tank 28, and a first valve 30 is installed in the middle of the drain pipe 29. A second water pump 31 is fixedly provided on one side of the upper end of the support plate 23. The input end of the second water pump 31 is connected to the clean water storage tank 27 through a third water pipe 32. The atomizing nozzles 9 are connected to the output end of the second water pump 31 through a fourth water pipe 33. The first fan 4, the ultraviolet sterilization lamp 10, the second fan 16, the first water pump 22, the second water pump 31, the water immersion sensor 12, the display screen 18, the control panel 19 and the alarm 20 are all electrically connected to the controller 17.

[0038] Through the above scheme of the present invention, larger dust particles can be removed by centrifugation first, and then finer dust can be removed by water film. In addition, the ultraviolet sterilization lamp 10 can be used to remove bacteria in the air, and water can be recycled and the threonine solution can be recovered, thereby saving a large amount of water and threonine.

[0039] Embodiment 2:

[0040] See also Figure 1-2 For the dust hopper 6, a ring 34 is fixedly provided on the outer wall in the middle of the dust hopper 6, and three support columns 35 are fixedly provided at the lower end of the ring 34 at equal intervals along the circumferential direction; for the cylinder 5, a visual window 36 is provided on the front of the cylinder 5, and a dust exhaust pipe is fixedly provided under the dust hopper 6, and a second valve 37 is installed in the middle of the dust exhaust pipe; for the water immersion sensor 12, the water immersion sensor 12 is located above the fine filter 11 and the water immersion sensor 12 is located below the exhaust pipe 13.

[0041] Through the above scheme of the present invention, the dust collecting hopper 6 can be supported by the support column 35, and the dust accumulation in the cylinder 5 can be observed through the visual window 36. When there is a lot of dust accumulation, the second valve 37 can be opened to discharge the dust for purification and recovery of threonine.

[0042] Embodiment three:

[0043] See also Figure 1-3 For the exhaust pipe 13, a placement net 38 is fixedly provided near the inner wall of the upper end of the exhaust pipe 13, and the placement net 38 is located above the second water pump 31, and granular activated carbon 39 is provided on the placement net 38. A limiting cover 40 is threadedly connected to the upper end of the exhaust pipe 13, and a limiting net is fixedly embedded on the upper wall of the limiting cover 40; for the support plate 23, a mounting plate 41 is fixedly provided under the support plate 23, and mounting holes are provided under the four corners of the mounting plate 41; for the box body 8, a cleaning port is provided on one side of the middle part of the box body 8, and a cover plate 42 is fixedly provided on the outer wall of the cleaning port by bolts, and a sealing gasket is fixedly provided on the inner wall of the cover plate 42.

[0044] Through the above-mentioned scheme of the present invention, the granular activated carbon 39 can be used to purify the gas in the exhaust duct 13, so that the exhausted air has a higher purity, and the granular activated carbon 39 can be regularly replaced by opening the limit cover 40, the mounting plate 41 and the mounting hole can be used for the installation and fixation of the support plate 23, and when the fine filter 11 is blocked, the cover plate 42 can be opened to clean the fine filter 11, and the sealing gasket can increase the sealing between the cover plate 42 and the cleaning port.

[0045] Embodiment 4:

[0046] See also Figure 1 and 6 For the clean water storage tank 27, a first float type liquid level sensor 43 is installed in the clean water storage tank 27, and the first float type liquid level sensor 43 is electrically connected to the controller 17. A water inlet 44 is fixedly provided on the clean water storage tank 27, and a sealing cover is threadedly connected to the water inlet 44; for the concentrated liquid storage tank 28, a second float type liquid level sensor 45 is installed in the concentrated liquid storage tank 28, and the second float type liquid level sensor 45 is electrically connected to the controller 17; for the ultrafiltration membrane device, the ultrafiltration membrane device includes a shell 46, An ultrafiltration membrane 47 is provided in the shell 46, a clean water outlet 48 is provided at the upper end of the shell 46, and the clean water outlet 48 is connected to the clean water discharge pipe 24, a concentrate outlet 49 is provided at the lower end of the shell 46, and the concentrate outlet 49 is connected to the concentrate discharge pipe 25, a water inlet 50 is provided on one side near the upper end of the shell 46, and the water inlet 50 is connected to the output end of the first water pump 22 through the second water pipe 26, an ultrasonic generator 51 is fixedly provided on the outer wall of one side in the middle part of the shell 46, and the ultrasonic generator 51 is electrically connected to the controller 17.

[0047] Through the above scheme of the present invention, the first float type liquid level sensor 43 can be used to detect the liquid level in the clean water storage tank 27. When the liquid level in the clean water storage tank 27 is low, the controller 17 can automatically control the alarm 20 to sound an alarm to remind the staff to add water from the water inlet 44. The second float type liquid level sensor 45 can be used to detect the liquid level in the concentrate storage tank 28. When the liquid level in the concentrate storage tank 28 is high, the controller 17 can automatically control the alarm 20 to sound an alarm to remind the staff to open the first valve 30 in time to recover the concentrate in the concentrate storage tank 28 and purify threonine. The ultrafiltration membrane 47 can be used to filter and purify the solution discharged from the box body 8. The filtered clean water flows into the clean water storage tank 27 for recycling, and the filtered concentrate flows into the concentrate storage tank 28. When the ultrafiltration membrane 47 is cleaned, due to the effect of ultrasonic vibration, the dirt that has penetrated into the holes of the ultrafiltration membrane 47 can be knocked down and carried away by the concentrate.

[0048] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0049] In actual application, the first fan 4 can suck the air in the working environment into the cylinder 5 under the action of centrifugal force, and the larger particles of dust are rotated into the dust collecting hopper 6 along the inner wall of the cylinder 5, and the air carries the smaller particles of dust into the box body 8. The atomizing nozzle 9 can spray water mist under the action of the second water pump 31, and the water mist contacts with the dust so that the dust can be dissolved in the water to form an aqueous solution. At the same time, the ultraviolet sterilization lamp 10 can perform ultraviolet sterilization on the air entering the box body 8. After the aqueous solution is filtered by the fine filter 11, it enters the ultrafiltration membrane device for filtration under the action of the first water pump 22. The filtered clean water enters the clean water storage tank 27 for recycling, thereby saving a lot of water resources. The filtered concentrate enters the concentrate storage tank 28, which can be used for the concentrate. The threonine can be purified, thereby saving a large amount of threonine. When the fine filter 11 is blocked and the liquid level overflows the water immersion sensor 12, the water immersion sensor 12 can send an electrical signal to the controller 17. The controller 17 controls the alarm 20 to sound an alarm to remind the staff to clean the fine filter 11, thereby facilitating the maintenance of the fine filter 11. The air in the box 8 is finally drawn out from the exhaust duct 13 by the second fan 16, thereby greatly increasing the air dust removal effect, and can perform ultraviolet sterilization on the air, so that the purified air is purer, and the waterproof and breathable membrane 14 can prevent the water in the box 8 from being drawn out by the second fan 16. The dust hopper 6 can be supported by the support column 35, and the cylinder 5 can be observed through the visual window 36. The dust accumulation in the exhaust pipe 13 can be checked by opening the second valve 37 when there is a lot of dust accumulation, so as to purify and recover the threonine. The granular activated carbon 39 can be used to purify the gas in the exhaust pipe 13, so that the discharged air purity is higher. The granular activated carbon 39 can be regularly replaced by opening the limit cover 40. The mounting plate 41 and the mounting hole can be used for the installation and fixation of the support plate 23. When the fine filter 11 is blocked, the cover plate 42 can be opened to clean the fine filter 11. The sealing gasket can increase the sealing between the cover plate 42 and the cleaning port. The first float type liquid level sensor 43 can be used to detect the liquid level in the clean water storage tank 27. When the liquid level in the clean water storage tank 27 is low, the controller 17 can automatically control the alarm. 20 sounds an alarm to remind the staff to add water from the water inlet 44, and the second float type liquid level sensor 45 can be used to detect the liquid level in the concentrated liquid storage tank 28. When the liquid level in the concentrated liquid storage tank 28 is high, the controller 17 can automatically control the alarm 20 to sound an alarm to remind the staff to open the first valve 30 in time to recover the concentrated liquid in the concentrated liquid storage tank 28 and purify the threonine, and the ultrafiltration membrane 47 can be used to filter and purify the solution discharged from the box body 8, and the filtered clean water flows into the clean water storage tank 27 for recycling, and the filtered concentrated liquid flows into the concentrated liquid storage tank 28. When the ultrafiltration membrane 47 is cleaned, due to the effect of ultrasonic vibration, the dirt that has penetrated into the pores of the ultrafiltration membrane 47 can be knocked down and taken away by the concentrated liquid.The display screen 18 can be used to display the data detected by the first float type liquid level sensor 43 and the second float type liquid level sensor 45, and the control panel 19 can control the operation of the first fan 4, the ultraviolet sterilization lamp 10, the second fan 16, the first water pump 22, the second water pump 31, the ultrasonic generator 51 and the alarm 20 respectively.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust water film dust removal and separation device for granular threonine production, characterized in that: The invention comprises an air suction device, a centrifugal dust removal device, a water film dust removal device and a wastewater treatment device, wherein the air suction device comprises an air suction pipe (1), an air collecting hood (2) is fixedly provided at one end of the air suction pipe (1), a first fan (4) is fixedly provided in the air suction pipe (1) via a first connecting rod (3), the centrifugal dust removal device comprises a cylinder (5), an end of the air suction pipe (1) away from the air collecting hood (2) is fixedly connected to one side of the upper end of the cylinder (5), a dust collecting hopper (6) is fixedly provided at the bottom of the cylinder (5), an air outlet pipe (7) is fixedly provided at the middle part of the upper wall of the cylinder (5), and the water film dust removal device comprises a box body (8), an end of the air outlet pipe (7) away from the cylinder (5) is connected to the box body (8) The box (8) is connected to one side of the upper end, a plurality of atomizing nozzles (9) are fixedly embedded in the inner wall near the upper end of the box (8), an ultraviolet sterilization lamp (10) is fixedly provided on the inner wall of the upper end of the box (8), a fine filter (11) is fixedly provided on the inner wall near the lower end of the box (8), a water immersion sensor (12) is fixedly provided on the inner wall of one side of the box (8), an exhaust pipe (13) is fixedly provided on one side of the middle part of the box (8), a waterproof and breathable membrane (14) is fixedly provided in the exhaust pipe (13) near one end of the box (8), a second fan (16) is fixedly provided on the inner wall near the upper end of the exhaust pipe (13) through a second connecting rod (15), and a controller (17) and a display screen (17) are fixedly provided on the outer wall of the box (8). 8), a control panel (19) and an alarm (20), one side of the lower end of the box body (8) is connected to a first water pump (22) through a first water pipe (21), and the first water pipe (21) is connected to the input end of the first water pump (22), the wastewater treatment device comprises a support plate (23), a clean water discharge pipe (24) and a concentrated liquid discharge pipe (25) are fixedly embedded in the middle of the support plate (23), a plurality of ultrafiltration membrane devices are installed between the clean water discharge pipe (24) and the concentrated liquid discharge pipe (25), the input ends of the ultrafiltration membrane devices are connected to the output end of the first water pump (22) through a second water pipe (26), and a clean water storage box (27) is fixedly provided on the outer wall of one side of the support plate (23) and a concentrate storage tank (28), the clean water discharge pipe (24) extends into the clean water storage tank (27) at one end away from the ultrafiltration membrane device, the concentrate discharge pipe (25) extends into the concentrate storage tank (28) at one end away from the ultrafiltration membrane device, a discharge pipe (29) is fixedly provided on one side of the lower end of the concentrate storage tank (28), a first valve (30) is installed in the middle of the discharge pipe (29), a second water pump (31) is fixedly provided on one side of the upper end of the support plate (23), an input end of the second water pump (31) is connected to the clean water storage tank (27) through a third water pipe (32), and the atomizing nozzles (9) are connected to the output end of the second water pump (31) through a fourth water pipe (33),The first fan (4), the ultraviolet sterilization lamp (10), the second fan (16), the first water pump (22), the second water pump (31), the water immersion sensor (12), the display screen (18), the control panel (19) and the alarm (20) are all electrically connected to the controller (17); The water immersion sensor (12) is located above the fine filter (11) and the water immersion sensor (12) is located below the exhaust pipe (13); A placement net (38) is fixedly provided near the inner wall of the upper end of the exhaust duct (13), and the placement net (38) is located above the second fan (16). Granular activated carbon (39) is provided on the placement net (38). A limit cover (40) is threadedly connected to the upper end of the exhaust duct (13), and a limit net is fixedly embedded on the upper wall of the limit cover (40); A cleaning port is provided on one side of the middle of the box body (8), a cover plate (42) is fixedly provided on the outer wall of the cleaning port by bolts, and a sealing gasket is fixedly provided on the inner wall of the cover plate (42); A first float type liquid level sensor (43) is installed in the clean water storage tank (27), the first float type liquid level sensor (43) is electrically connected to the controller (17), a water inlet (44) is fixedly provided on the clean water storage tank (27), and a sealing cover is threadedly connected to the water inlet (44); A second float type liquid level sensor (45) is installed in the concentrated liquid storage tank (28), and the second float type liquid level sensor (45) is electrically connected to the controller (17); The ultrafiltration membrane device comprises a shell (46), an ultrafiltration membrane (47) is arranged in the shell (46), a clean water outlet (48) is provided at the upper end of the shell (46), and the clean water outlet (48) is connected to the clean water discharge pipe (24), a concentrated liquid outlet (49) is provided at the lower end of the shell (46), and the concentrated liquid outlet (49) is connected to the concentrated liquid discharge pipe (25), a water inlet (50) is provided on one side near the upper end of the shell (46), and the water inlet (50) is connected to the output end of the first water pump (22) through a second water pipe (26), and an ultrasonic generator (51) is fixedly provided on the outer wall of one side of the middle part of the shell (46), and the ultrasonic generator (51) is electrically connected to the controller (17).

2. The dust water film dust removal and separation device for granular threonine production according to claim 1 is characterized in that: A circular ring (34) is fixedly sleeved on the outer wall of the middle part of the dust collecting hopper (6), and three supporting columns (35) are fixedly sleeved at the lower end of the circular ring (34) at equal intervals along the circumferential direction.

3. The dust water film dust removal and separation device for granular threonine production according to claim 2 is characterized in that: A visual window (36) is provided on the front of the cylinder (5), a dust exhaust pipe is fixedly provided under the dust collecting hopper (6), and a second valve (37) is installed in the middle of the dust exhaust pipe.

4. The dust water film dust removal and separation device for granular threonine production according to claim 1 is characterized in that: A mounting plate (41) is fixedly provided under the support plate (23), and mounting holes are provided under the four corners of the mounting plate (41).

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