Moisture conditioning device for grain powder-making type powdery particles

Abstract

The utility model provides a grain pulverization type powdery particle moisture conditioning device which comprises a rack, a box body arranged on the rack and a hopper communicated with the box body, feeding boxes communicated with the box body are arranged on the front side and the rear side of the top of the box body respectively, and feeding ports are formed in the tops of the feeding boxes. An air inlet is formed in the top, located between the two feeding boxes, of the box body, first material uniformizing assemblies corresponding to the bottoms of the feeding boxes are arranged on the front side and the rear side of the interior of the box body respectively, second material uniformizing assemblies are arranged on the front side and the rear side of the interior of the box body respectively, and the second material uniformizing assemblies are located below the first material uniformizing assemblies; and a spraying assembly is arranged in the box body. The device is applied to the flour milling process of cereals such as wheat and the like, and meets the requirements of on-line moisture adjustment, rising of moisture of low-moisture powdery particles and falling of moisture of high-moisture on-line powdery particles, so that the product precision is improved, the product input-output rate is increased, the storage conditions of finished products can be met, and the shelf life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of food machinery, in particular to a moisture conditioning device for powdery particles of grain flour-making type. Background Art

[0002] In modern wheat milling, wheat is tempered with water before being ground, sieved, and graded in successive stages to produce various in-process and finished products. The in-process products undergo further grinding, sieving (purifying), and grading. Flour of similar quality from each stage is collected through conveying equipment and, after inspection and sieving, is either stored in a temporary silo or packaged directly for storage. Due to varying moisture loss in different flour stages, the moisture content of the flour in the flour stages, midstream, and downstream, and in by-products, varies significantly. The moisture content of the finished product in the flour stages, particularly in the downstream, falls below national standards. Currently, none of the in-process systems have moisture control devices. Therefore, a moisture conditioning device, integrated into the existing process, is being developed to adjust the moisture quality of the in-process products to national standards. This not only meets storage requirements and shelf life, but also increases yield and improves the company's economic efficiency. Summary of the Invention

[0003] The utility model provides a moisture conditioning device for powdery particles of grain flour milling, which is applied to the flour milling process of wheat and other grains, and meets the requirements of online moisture regulation, so that the moisture content of low-moisture powdery particles can be increased, and the moisture content of high-moisture online powdery particles can be reduced, so as to improve product precision and product input-output rate, meet the storage conditions of finished products, and extend the shelf life.

[0004] The technical solution adopted by this utility model is:

[0005] The bag is connected with the bag filter screen, and the bag filter screen is connected with the bottom of the bag filter screen.

[0006] Preferably, the first material mixing assembly includes a first fixed plate and a first adjusting plate, the first fixed plate is arranged on the inner side of the top of the box body, the first fixed plate has a first vertical plate and a first inclined plate connected at an obtuse angle, the first vertical plate is aligned up and down with the inner plate of the feed box, and the first inclined plate is inclined toward the first adjusting plate; the first adjusting plate has a second vertical plate and a second inclined plate connected at an obtuse angle, the second vertical plate is arranged on the inner wall of the box body, the second inclined plate is inclined toward one side of the first fixed plate, and its lower end is close to but not close to the first inclined plate, and the lower end of the second inclined plate cooperates with the surface of the first inclined plate to form a first material mixing channel.

[0007] Preferably, the second vertical plate of the first adjustment plate is adjustably arranged on the inner side wall of the box through a plurality of star-shaped handles, and a plurality of first oblong through holes are opened at positions corresponding to the star-shaped handles. The star-shaped handles pass through the first oblong through holes and are threadedly connected to the second vertical plate. Loosening the star-shaped handles can drive the second vertical plate to move up and down along the first oblong through holes.

[0008] Preferably, the second material leveling assembly includes a second fixed plate and a second adjustment plate. The second fixed plate is arranged on the inner wall of the box body and has an inclined plate pointing downward at an obtuse angle. The second adjustment plate is vertically arranged in the box body, and its lower end is close to but not close to the inclined surface of the second fixed plate. The lower end of the second adjustment plate cooperates with the inclined plate surface of the second fixed plate to form a second material leveling channel.

[0009] Preferably, the second material refining assembly further comprises a dispersion plate, which is arranged on the lower surface of the inclined plate of the second fixed plate, the dispersion plate being parallel to the inclined edge and extending out of the inclined edge, and a plurality of dispersion columns being arranged along the length direction of the lower part of the dispersion plate, and the dispersion columns being arranged perpendicular to the dispersion plate.

[0010] Preferably, a horizontal adjustment component for adjusting the second adjustment plate is provided on the outside of the box body, and the horizontal adjustment component includes a first baffle and a horizontal screw arranged on the left and right sides of the box body, the first baffle is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body, two groups of threaded sleeves are provided on the upper and lower outer surfaces of the first baffle, and a vertical arm is provided between the two groups of threaded sleeves, one end of the horizontal screw is provided on a fixed plate on one side of the box body, and the other end is threadedly connected to the vertical arm; the two ends of the second adjusting plate are fixed on the mounting plate, and two second elongated through holes are provided at the upper and lower positions corresponding to the side walls of the box body and the mounting plate, and the bolts pass through the threaded sleeves and the second elongated through holes of the first baffle and are fixed to the mounting plate, and the horizontal screw rotates to move the first baffle, and then drives the second adjusting plate to move back and forth along the second elongated through hole through the mounting plate, approaching or moving away from the inclined plate of the second fixed plate, thereby reducing or increasing the width of the second material mixing channel.

[0011] Preferably, the spray assembly includes a high-pressure pipe and a plurality of atomizing nozzles arranged in a box body, and the high-pressure pipe is located between the two second sizing assemblies. One end of the high-pressure pipe passes through the box body to form an inlet, and the other end is closed with a plug. A plurality of atomizing nozzles are arranged at intervals on the high-pressure pipe in the box body, and the nozzles of the atomizing nozzles are facing downward.

[0012] Preferably, a first vertical adjustment component and a second vertical adjustment component are respectively provided on the left and right outer sides of the box body. The high-pressure pipe located on the outside of the box body near the inlet is provided on the first vertical adjustment component and can move up and down with it. The plug at the other end of the high-pressure pipe is provided outside the box body, and the plug located on the outside of the box body is provided on the second vertical adjustment component and can move up and down with it.

[0013] Preferably, the first vertical adjustment assembly includes a first vertical screw and an adjustment box, the first vertical screw is arranged on a fixed plate on one side of the box body, and the lower end thereof is threadedly connected to the adjustment box, and a second baffle is provided on the side of the adjustment box close to the box body, the second baffle is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body, and the high-pressure pipe located outside the box body passes through the second baffle and is fixed to the bottom of the adjustment box; the second vertical adjustment assembly includes a second vertical screw, the second vertical screw is arranged on a fixed plate on the other side of the box body, and the lower end thereof is threadedly connected to the plug, and the plug located on the inner side of the box body is provided with a third baffle, and the third baffle is close to the inner wall of the box body and is movably arranged relative to the outer wall of the box body.

[0014] Preferably, a plurality of third oblong through holes are provided on the second baffle plate, and a plurality of first bolts are provided on the corresponding side walls of the box body. The first bolts are passed through the third oblong through holes and are provided with nuts. By loosening the nuts, the upper and lower positions of the second baffle plate can be adjusted; a plurality of second bolts are provided on the third baffle plate, and a plurality of fourth oblong through holes are provided on the corresponding side walls of the box body. The second bolts are passed through the fourth oblong through holes and are provided with nuts. By loosening the nuts, the upper and lower positions of the third baffle plate can be adjusted.

[0015] Preferably, the top of the box body located between the two feed boxes is concave to form a groove, the air inlet is arranged at the bottom of the groove, a pull-out box body is arranged in the groove at the top of the box body, the top and bottom of the pull-out box body are open, and the inside of the pull-out box body is filled with an air filter.

[0016] Preferably, at least one feed box on the top of the box body is provided with a rotary paddle level meter, and the hopper is also provided with a rotary paddle level meter.

[0017] Preferably, an inverted V-shaped diverter plate is provided inside the feed box, and the inverted V-shaped diverter plate is provided at the lower part of the feed box and corresponds to the feed port.

[0018] Preferably, the left and right side walls of the box are respectively installed with observation glass plates.

[0019] Preferably, a hand inspection hole is opened at the lower part of the front and rear side walls of the box body, and a hand inspection hole is opened on the side walls of the feed box and the discharge hopper, and a hand inspection hole cover is detachably provided on the hand inspection hole.

[0020] Preferably, a mounting opening is provided at the lower portion of the left and right side walls of the box body, and a mounting opening blocking plate is detachably provided on the mounting opening.

[0021] Compared with the prior art, the beneficial effect of the present invention is that: the present device can make the powdered granular material enter the symmetrical box relatively evenly through the arrangement of two feed boxes, and form two relative and dispersed material waterfalls through the arrangement of the first sparging component and the second sparging component arranged at the lower side of the feed box. The two material waterfalls form an angle and meet, and a spray component that can be adjusted up and down is provided above the two angles. When the material needs to increase moisture, high-humidity air or high-pressure water enters through the high-pressure pipe inlet and is fully mixed with the material under the action of negative pressure; when the material needs to be dried to reduce moisture, high-pressure superheated steam enters from the high-pressure pipe inlet; the mixed material enters the negative pressure pipe through the discharge pipe and enters the next process, thereby To meet the needs of online moisture regulation, the moisture content of low-moisture powdery particles can be increased, and the moisture content of high-moisture powdery particles can be decreased. In addition, a rotary paddle level meter is installed on the feed box to detect whether material blockage occurs. If material blockage occurs, it is necessary to cut off the entry of high-pressure superheated steam, high-humidity air or high-pressure water in time, and promptly inspect the front section of the feed box pipeline, adjust the first and second material mixing channels, and clean the material after it falls into the hopper. At the same time, a rotary paddle level meter is installed on the hopper to detect whether the material is accumulated. If material blockage occurs in the hopper, the signal will be transmitted to the automatic control system, and the high-pressure superheated steam, high-humidity air or high-pressure water in the high-pressure pipeline will be stopped, and the discharge pipe will be removed to clean the material. The entire equipment is reasonably designed and easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 for Figure 1 Enlarged view of part A in .

[0024] Figure 3 This is a structural diagram of the utility model from another angle.

[0025] Figure 4 for Figure 3 Enlarged view of part B in .

[0026] Figure 5 for Figure 1main view.

[0027] Figure 6 for Figure 5 AA cross-section of the .

[0028] Figure 7 for Figure 6 Enlarged view of part C.

[0029] Figure 8 for Figure 1 Right view of .

[0030] Figure 9 for Figure 8 BB cross-section diagram.

[0031] Figure 10 for Figure 9 Enlarged view of part D in .

[0032] Figure 11 for Figure 9 Enlarged view of part E in .

[0033] Figure 12 for Figure 8 CC cross-section of the middle feed box.

[0034] In the figure: 1. frame; 2. box; 3. hopper; 4. feed box; 5. spray assembly; 6. first sparging assembly; 7. second sparging assembly; 8. horizontal adjustment assembly; 9. first vertical adjustment assembly; 10. second vertical screw; 11. discharge pipe; 12. star-shaped handle; 13. first oblong through hole; 14. second oblong through hole; 15. second baffle; 16. third baffle; 17. third oblong through hole; 18. first bolt; 19. second bolt; 20. fourth oblong through hole; 21. pull-out box; 22. air filter; 23. paddle level gauge; 24. observation glass Glass plate; 25. Manual inspection hole cover; 26. Mounting port plug; 27. Mounting plate; 28. Inverted V-shaped manifold; 41. Feed port; 51. High-pressure pipeline; 52. Atomizing nozzle; 53. Plug; 61. First fixed plate; 611. First vertical plate; 612. First inclined plate; 62. First adjusting plate; 621. Second vertical plate; 622. Second inclined plate; 71. Second fixed plate; 72. Second adjusting plate; 73. Dispersing plate; 74. Dispersing column; 81. First baffle; 82. Horizontal screw; 83. Threaded sleeve; 84. Vertical arm; 91. First vertical screw; 92. Adjusting box. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] like Figure 1As shown, the utility model provides a moisture conditioning device for grain flour-making powdery particles, including a frame 1, a box body 2 arranged on the frame, and a hopper 3 arranged at the bottom of the box body 2 and connected to the box body 2. Feed boxes 4 are respectively provided on the front and rear sides of the top of the box body 2, and the bottom of the feed box 4 is connected to the box body 2. The top of the feed box 4 is provided with a feed port 41, and the top of the box body located between the two feed boxes 4 is provided with an air inlet. The first mixing assembly 6 corresponding to the bottom of the feed box is provided on the front and rear sides of the interior of the box body 2. The first mixing assembly 6 divides the material into thin layers. The second mixing assembly 7 is respectively provided on the front and rear sides of the interior of the box body 2. The second mixing assembly 7 is located below the first mixing assembly 6, and is used to receive the material from the first mixing assembly 6, divide it into thin layers and further disperse it; a spray assembly 5 is provided inside the box body 2, and the lower end of the hopper 3 is detachably connected to a discharge pipe 11. In this embodiment, in order to reduce the load-bearing capacity of the box body, the hopper is welded to the frame, and the box body is detachably fixed to the frame by the surrounding steel sections.

[0037] Among them, such as Figure 12 As shown, the feed box is internally provided with an inverted V-shaped diverter plate 28, which is located at the bottom of the feed box and corresponds to the feed port. Specifically, the inverted V-shaped diverter plate 28 is welded between the front and rear inner walls of the feed box. The inverted V-shaped diverter plate is used to divide the material entering the feed box, causing it to flow in from both sides of the feed box. This allows the material to be spread flat above the first screed assembly, rather than accumulating into a cone shape. This causes uneven force on the first screed assembly and reduces the impact force of the material on the first screed assembly during feeding.

[0038] During use, the material enters the three-way pipe through the conveying pipe and is relatively evenly divided into two parts, which enter two symmetrical feed boxes respectively. During the falling process, the two parts of material pass through the first and second sparging components below the feed boxes respectively to form a dispersed material thin layer waterfall. The two thin material waterfalls will form an angle with each other. After a certain delay, the spray component will work, spraying superheated steam, high-humidity air, or high-pressure water towards the cross material waterfall to fully mix with the material. The mixed material falls into the hopper and enters the negative pressure pipeline through the discharge pipe to flow into the next process. Because the discharge pipe is connected to the negative pressure pipe of the negative pressure lifting system during use, air continuously enters the box from the air inlet under the action of negative pressure. Under the action of air, the material can be fully mixed and discharged through the discharge pipe.

[0039] like Figure 6 、 Figure 7As shown, the first material refining assembly 6 includes a first fixed plate 61 and a first adjustment plate 62. The first fixed plate 61 is arranged at the top of the box body through its horizontal plate. The first fixed plate 61 has a first vertical plate 611 and a first inclined plate 612 connected at an obtuse angle. The first vertical plate 611 is aligned with the inner plate of the feed box 4, and the first inclined plate 612 is inclined toward the first adjustment plate 62. The first adjustment plate 62 has a second vertical plate 621 and a second inclined plate 622 connected at an obtuse angle. The first adjustment plate 62 is arranged on the inner wall of the box body 2 through its second vertical plate 621. The second inclined plate 622 is inclined toward the first fixed plate 61, and its lower end is close to but not close to the first inclined plate 612. The lower end of the second inclined plate 622 cooperates with the surface of the first inclined plate 612 to form a first material refining channel. Material passes through the first material refining channel, forming a thin layer of material.

[0040] Due to the size of different powder particles, the width of the first material sparging channel corresponding to different materials varies. In order to be suitable for use with a variety of materials, the first material sparging channel is configured to be adjustable. Specifically, the second vertical plate 621 of the first adjustment plate 62 is adjustably arranged on the inner side wall of the box body via a plurality of star-shaped handles 12. The plurality of star-shaped handles 12 are spaced apart along the length of the second vertical plate 621. The side wall of the box body 2 is provided with a plurality of first oblong through-holes 13 at positions corresponding to the star-shaped handles. The first oblong through-holes 13 are vertically provided, and the star-shaped handles 12 are threadedly connected to the second vertical plate 621 through the first oblong through-holes 13. Loosening the star-shaped handles allows the second vertical plates to move relative to each other. The upward and downward movement of the star-shaped handles can drive the second vertical plates to move up and down along the first oblong through-holes, thereby driving the second inclined plate away from or closer to the first inclined plate through the second vertical plate, thereby increasing or decreasing the width of the first material sparging channel.

[0041] In this embodiment, the second material sparging assembly 7 includes a second fixed plate 71 and a second adjustment plate 72. The second fixed plate 71 is arranged on the inner wall of the housing 2 and has an obtuse downward inclined plate. The second adjustment plate 72 is vertically arranged in the housing 2, and its lower end is close to but not close to the inclined surface of the second fixed plate 71. The lower end of the second adjustment plate 72 cooperates with the inclined plate surface of the second fixed plate 71 to form a second material sparging channel. The material flowing out of the first material sparging channel enters between the second fixed plate and the second adjustment plate, and is then evenly divided into thin layers and flows out through the second material sparging channel. The first material sparging channel can only ensure that the material flows relatively flat, but cannot ensure the uniformity of the falling thin layer. The setting of the second material sparging channel ensures that the material flows out as evenly as possible, thereby making the material more evenly mixed with the superheated steam, high-humidity air, or high-pressure water.

[0042] In order to better combine the thin layers of material on both sides without affecting the material's descent into the hopper, it is necessary to further increase the dispersion of the thin layers of material. Specifically, the second material refining assembly 7 also includes a dispersion plate 73, which is disposed on the lower surface of the inclined plate of the second fixed plate 71. The dispersion plate 73 is parallel to the hypotenuse of the second fixed plate and extends beyond the hypotenuse. The lower portion of the upper surface of the dispersion plate 73 is provided with a plurality of dispersion columns 74 along its length, and the dispersion columns 74 are arranged perpendicular to the dispersion plate 73. After the material emerges from the second material refining channel in a thin layer, it will fall along the second fixed plate onto the dispersion plate. Under the action of the dispersion columns on the lower surface of the dispersion plate, a small portion of the material flows out from the middle of the dispersion columns, while the majority of the material hits the dispersion columns and rises outward in a parabolic trajectory. This increases the dispersion of the material, allowing the thin layers of material on both sides to better cross-mix, thereby ensuring a more uniform mixing of the superheated steam, high-humidity air, or high-pressure water sprayed by the spray assembly with the material.

[0043] Due to the sizes of different powder particles, the widths of the first material-sparing channels corresponding to different materials are different. In order to be suitable for use with a variety of materials, the second material-sparing channel also needs to be set to be adjustable. Specifically, a horizontal adjustment component 8 is respectively provided on the left and right outer sides of the box body 2, which is used to adjust the relative distance between the second adjustment plate 72 and the second fixed plate 71, thereby adjusting the size of the second material mixing channel. The horizontal adjustment component 8 includes a first baffle 81 and a horizontal screw 82 arranged on the left and right sides of the box body. The first baffle 81 is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body. Two groups of threaded sleeves 83 are provided on the upper and lower outer surfaces of the first baffle 81, and a vertical arm 84 is provided between the two groups of threaded sleeves 83. One end of the horizontal screw 82 is provided on the fixed plate on one side of the box body, and the other end is threadedly connected to the vertical arm 84; the two ends of the second adjustment plate 72 are fixed on the mounting plate 27, and two second oblong through holes 14 are provided at the upper and lower positions corresponding to the side walls of the box body and the mounting plate 27. The second oblong through holes 14 are opened horizontally, and the bolts are passed through the threaded sleeves 83 of the first baffle 81 and the second oblong through holes 14 and fixed to the mounting plate 27. The horizontal screw rotates to move the first baffle back and forth, thereby driving the second adjustment plate to move back and forth along the second oblong through hole through the mounting plate, approaching or moving away from the inclined plate of the second fixed plate, thereby reducing or increasing the width of the second material distribution channel.

[0044] In this embodiment, the spray assembly 5 is designed as follows. The spray assembly 5 comprises a high-pressure pipe 51 disposed within the housing and a plurality of atomizing nozzles 52. The high-pressure pipe 51 is positioned between the two second sparging assemblies 7. One end of the high-pressure pipe 51 extends through the housing to form an inlet, while the other end is sealed with a plug 53. A plurality of atomizing nozzles 52 are spaced apart within the housing, with the nozzles of the atomizing nozzles 52 facing downward. During operation, the solenoid valve connected to the high-pressure pipe inlet is opened, allowing high-pressure superheated steam (or high-humidity air or high-pressure water) to enter the high-pressure pipe within the housing. The atomizing nozzles then spray the gas (or liquid) toward the confluence of the two material waterfalls, thoroughly mixing the materials.

[0045] Due to the varying sizes and weights of different powdered particles, the height of the material waterfall formed after dispersion through the second sparging assembly varies. To better achieve mixing of the gas (or liquid) ejected from the atomizing nozzle with the material, a vertical adjustment assembly is provided to adjust the spray assembly's position up and down. Specifically, a first vertical adjustment assembly 9 and a second vertical adjustment assembly are provided on the left and right exterior sides of the housing 2, respectively. The high-pressure pipe 5, located outside the housing near the inlet, is mounted on the first vertical adjustment assembly 9 and can move up and down with it. A plug 53 at the other end of the high-pressure pipe 5 extends beyond the housing 2. The plug 53, also located outside the housing, is mounted on the second vertical adjustment assembly and can move up and down with it. The first and second vertical adjustment assemblies, arranged at either end of the high-pressure pipe, control the upward or downward movement of the pipe. Correspondingly, through-holes are provided in the housing's sidewalls at either end of the pipe, allowing the pipe and plug to pass through and move up and down.

[0046] Furthermore, the first vertical adjustment component 9 includes a first vertical screw 91 and an adjustment box 92. The first vertical screw 91 is arranged on a fixed plate on one side of the box body, and its lower end is threadedly connected to the adjustment box 92. The adjustment box 92 is provided with a second baffle 15 on one side close to the box body. The second baffle 15 is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body. The second baffle is used to seal the through hole on the box body for the high-pressure pipe to pass through. The high-pressure pipe 51 located on the outside of the box body near the inlet passes through the second baffle 15 and is fixed to the bottom of the adjustment box 92. The high-pressure pipe is sealed with the second baffle; the second vertical adjustment component includes a second vertical screw 10. The second vertical screw 10 is arranged on the fixed plate on the other side of the box body, and its lower end is threadedly connected to the plug 53. The plug 53 located on the inside of the box body is sleeved with a third baffle 16, and the third baffle 16 is close to the inner wall of the box body and is movably arranged relative to the inner wall of the box body. The third baffle 16 is used to seal the through hole on the box body for the plug to pass through. The first vertical screw rotates, and the regulating box moves up and down along the first vertical screw, driving the high-pressure pipeline fixed at the inlet end to move up and down. The second vertical screw rotates, and the plug moves up and down along the second vertical screw, driving the closed end of the high-pressure pipeline to move up and down, thereby causing the entire high-pressure pipeline to move up and down.

[0047] In order to ensure that the box body has a good sealing effect, the second baffle and the third baffle are locked when not adjusted. Specifically, a plurality of third oblong through holes 17 are opened on the second baffle 15, and the third oblong through holes are opened vertically. A plurality of first bolts 18 are provided on the corresponding side wall of the box body 2, and the first bolts 18 are provided with nuts through the third oblong through holes 17. After the bolts are tightened, the second baffle is fixed, and the nuts are loosened, and the first vertical screw is rotated to adjust the upper and lower positions of the second baffle; a plurality of second bolts 19 are provided on the third baffle 16, and a plurality of fourth oblong through holes 20 are opened on the corresponding side wall of the box body 2, and the fourth oblong through holes 20 are opened vertically. The second bolts 19 are provided with nuts through the fourth oblong through holes 20. After the bolts are tightened, the third baffle is fixed, and the nuts are loosened to adjust the upper and lower positions of the third baffle. After the high-pressure pipeline is adjusted up and down, the second baffle and the third baffle can be fixed to the side wall of the box by tightening the bolts and nuts. When the high-pressure pipeline needs to be adjusted, the nuts are loosened to make the second baffle and the third baffle move relative to each other. At this time, the second baffle and the third baffle can be driven to move up and down by rotating the first vertical screw and the second vertical screw.

[0048] To ensure that incoming air is clean, free of dust and particulate matter, a filter device is required at the air inlet. Specifically, the top of the box body, located between the two feed boxes, is concave to form a groove, with the air inlet located at the bottom of the groove. A pull-out box body 21 is located within the groove at the top of the box body. The pull-out box body 21 has openings at the top and bottom, and is filled with an air filter element 22. This air filter element is preferably air filter cotton. Air enters through the top opening of the pull-out box body, is filtered by the air filter element, and then enters the box body through the bottom opening of the pull-out box body and the air inlet at the bottom of the groove.

[0049] Furthermore, a rotary paddle level meter 23 is provided on at least one feed box 4 at the top of the box body 2, and the rotary paddle level meter 23 is used to detect whether there is a blockage in the feed box. A rotary paddle level meter 23 is also provided on the hopper 3, and the rotary paddle level meter 23 is used to detect whether there is a blockage in the hopper.

[0050] Because the first sparging channel is relatively narrow, material can accumulate. In some cases, there can be a momentary overfeed, causing the feed box to overflow and even fill the tee pipe above it. In this case, a paddle-rotor level gauge can effectively monitor the feed box for blockage. When the level gauge on the feed box detects material inside, it defaults to a blockage and sends a signal to the control system. The control system issues an alarm and a command to cut off the flow of superheated steam, high-humidity air, or high-pressure water into the feed box, simultaneously cutting off material flow and shutting off the negative pressure system. Upon receiving the alarm, personnel arrive on-site to inspect the feed box and the tee pipe above it for blockage and remove the blocked material. The control system then activates the negative pressure system to control the flow of material into the feed box, delaying the flow of superheated steam, high-humidity air, or high-pressure water into the box and ensuring normal operation of the equipment. Since the material entering through the tee pipe is relatively evenly divided into two portions, entering the two symmetrical feed boxes, installing a paddle-rotor level gauge in only one feed box can also achieve the desired effect to reduce equipment costs.

[0051] In addition, the device's discharge pipe is connected to the negative pressure pipe of the negative pressure material lifting system, allowing the material to be drawn out of the discharge pipe under the action of negative pressure. Since the material's falling speed after passing through the first and second sizing assemblies is constant, if the negative pressure material lifting system malfunctions, causing the conveying speed to decrease or stop, the material lifting speed will be less than the material's falling speed, which will cause material accumulation in the hopper. When material becomes blocked in the hopper, the paddle-rotor level meter in the hopper transmits information to the control system, which will stop feeding, stop the spray assembly, shut down the negative pressure system, manually remove the discharge pipe, clean up the blocked material, and enable the equipment to operate normally. The negative pressure is then turned on again to control the feeding, and the spray assembly is turned on for a delay to allow it to operate.

[0052] In order to facilitate observation of the mixing state of the materials on the left and right sides, as well as the mixing state of the steam or water sprayed by the spray assembly with the materials, observation glass plates 24 are respectively installed on the left and right side walls of the box body 2.

[0053] Furthermore, in order to detect the real-time status of the materials in the feed box, the box body, and the hopper, the lower part of the front and rear side walls of the box body 2 is provided with a hand inspection hole, and the side walls of the feed box and the discharge hopper are also provided with a hand inspection hole, and the hand inspection hole is detachably provided with a hand inspection hole cover 25. By opening the hand inspection hole cover, you can reach out to receive and take out the materials and inspect them.

[0054] In addition, to facilitate the installation, maintenance and replacement of components within the box, installation openings are provided at the lower portion of the left and right side walls of the box 2, and removable installation opening plugs 26 are provided on the installation openings. At the same time, a reserved hole is provided on the side wall of the feed box where the paddle level meter is not installed, and a plug is installed on the reserved hole to facilitate the subsequent installation of the paddle level meter.

[0055] The operation process of this device is as follows: powdered particulate material enters through the conveying pipe and the three-way pipe, wherein the conveying pipe is connected between the distributor and the three-way pipe, and the distributor controls whether the material is coming in. The material is divided into two paths through the three-way pipe, and enters the feed box symmetrically from the feed port, and falls onto the first sizing component. After passing through the first sizing channel, it falls into a thin layer to the second sizing component. After passing through the second sizing layer, it is still evenly divided into thin layers and dispersed to form a material waterfall; by adjusting the height of the high-pressure pipe above the waterfall material angle, the gas or liquid sprayed by the nozzle is mixed with the material to achieve the best state. When the material needs to be dried to reduce moisture, high-pressure superheated steam enters from the high-pressure pipe inlet. When the material needs to increase moisture, high-humidity air or high-pressure water enters through the high-pressure pipe inlet; under the action of negative pressure, air enters from the air inlet on the top of the device, and the material is fully mixed under the action of air, enters the hopper, and then enters the negative pressure pipe through the discharge port, and then enters the next process.

[0056] When a blockage occurs in the feed box, the control system will alarm and issue a command, halting feed and air (or liquid) intake, and cutting off material flow. Workers will then arrive on-site to detect blockages in the feed box and the tee pipe above it, clearing the blocked material and restoring normal operation. When a blockage occurs in the hopper, the paddle level meter transmits information to the control system, which will alarm and halt feed and air (or liquid) intake. Workers will then arrive on-site, remove the discharge pipe, and clear the blocked material, restoring normal operation. The control system refers to the original process control system. All electronic control devices used with this device are integrated into the original process control system.

[0057] The equipment is carefully designed and easy to manufacture. With the cooperation of the automatic control system, it can adjust the moisture content of powder particles, especially in the flour milling process of wheat and other grains.

Claims

1. A device for conditioning moisture in powdery particles of cereal flour, characterized by: The hopper comprises a frame, a box body arranged on the frame, and a hopper arranged at the bottom of the box body and connected with the box body, wherein feed boxes are respectively arranged on the front and rear sides of the top of the box body, and the bottom of the feed box is connected with the box body, a feed port is provided on the top of the feed box, and an air inlet is provided on the top of the box body located between the two feed boxes, and a first sparging assembly corresponding to the bottom of the feed box is respectively provided on the front and rear sides inside the box body, the first sparging assembly divides the material into thin layers, and a second sparging assembly is respectively provided on the front and rear sides inside the box body, the second sparging assembly is located below the first sparging assembly, and is used for receiving the material from the first sparging assembly, dividing it into thin layers and further dispersing it; a spray assembly is provided inside the box body, and the lower end of the hopper is detachably connected to a discharge pipe.

2. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The first material mixing assembly includes a first fixed plate and a first adjusting plate. The first fixed plate is arranged on the inner side of the top of the box body. The first fixed plate has a first vertical plate and a first inclined plate connected at an obtuse angle. The first vertical plate is aligned up and down with the inner plate of the feed box, and the first inclined plate is inclined toward the first adjusting plate; the first adjusting plate has a second vertical plate and a second inclined plate connected at an obtuse angle. The second vertical plate is arranged on the inner wall of the box body. The second inclined plate is inclined toward one side of the first fixed plate, and its lower end is close to but not close to the first inclined plate. The lower end of the second inclined plate cooperates with the surface of the first inclined plate to form a first material mixing channel.

3. The device for moisture conditioning of grain flour-like powdery particles according to claim 2, characterized in that: The second vertical plate of the first adjustment plate is adjustably arranged on the inner side wall of the box through a plurality of star-shaped handles. A plurality of first oblong through holes are opened at positions corresponding to the star-shaped handles. The star-shaped handles pass through the first oblong through holes and are threadedly connected to the second vertical plate. Loosening the star-shaped handles can drive the second vertical plate to move up and down along the first oblong through holes.

4. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The second material leveling assembly includes a second fixed plate and a second adjustment plate. The second fixed plate is arranged on the inner wall of the box body and has an inclined plate with an obtuse angle downward. The second adjustment plate is vertically arranged in the box body, and its lower end is close to but not close to the inclined surface of the second fixed plate. The lower end of the second adjustment plate cooperates with the inclined plate surface of the second fixed plate to form a second material leveling channel.

5. The device for moisture conditioning of grain flour-like powdery particles according to claim 4, characterized in that: The second material leveling assembly also includes a dispersion plate, which is arranged on the lower surface of the inclined plate of the second fixed plate. The dispersion plate is parallel to the inclined edge and extends out of the inclined edge. A plurality of dispersion columns are arranged on the lower part of the dispersion plate along its length direction, and the dispersion columns are arranged perpendicular to the dispersion plate.

6. The device for moisture conditioning of grain flour-like powdery particles according to claim 4, characterized in that: The outer side of the box body is provided with a horizontal adjustment component for adjusting the second adjustment plate, and the horizontal adjustment component includes a first baffle and a horizontal screw arranged on the left and right sides of the box body, the first baffle is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body, two groups of threaded sleeves are provided on the upper and lower outer surfaces of the first baffle, and a vertical arm is provided between the two groups of threaded sleeves; one end of the horizontal screw is provided on a fixed plate on one side of the box body, and the other end is threadedly connected to the vertical arm; the two ends of the second adjusting plate are fixed to the mounting plate, and two second elongated through holes are provided at the upper and lower positions corresponding to the side walls of the box body and the mounting plate, and the bolts pass through the threaded sleeves and the second elongated through holes of the first baffle and are fixed to the mounting plate. The horizontal screw rotates to move the first baffle, and then drives the second adjusting plate to move back and forth along the second elongated through holes through the mounting plate, approaching or moving away from the inclined plate of the second fixed plate, thereby reducing or increasing the width of the second material mixing channel.

7. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The spray assembly includes a high-pressure pipe and a plurality of atomizing nozzles arranged in a box body, and the high-pressure pipe is located between two second sparging assemblies. One end of the high-pressure pipe passes through the box body to form an inlet, and the other end is closed with a plug. A plurality of atomizing nozzles are arranged at intervals on the high-pressure pipe in the box body, and the nozzles of the atomizing nozzles are downward.

8. The device for moisture conditioning of grain flour-like powdery particles according to claim 7, characterized in that: The left and right outer sides of the box body are respectively provided with a first vertical adjustment component and a second vertical adjustment component. The high-pressure pipe located on the outside of the box body near the inlet is arranged on the first vertical adjustment component and can move up and down with it. The plug at the other end of the high-pressure pipe passes through the box body, and the plug located on the outside of the box body is arranged on the second vertical adjustment component and can move up and down with it.

9. The device for moisture conditioning of grain flour-like powdery particles according to claim 8, characterized in that: The first vertical adjustment assembly includes a first vertical screw and an adjustment box. The first vertical screw is arranged on a fixed plate on one side of the box body, and the lower end of the first vertical screw is threadedly connected to the adjustment box. A second baffle is provided on the side of the adjustment box close to the box body, and the second baffle is close to the outer wall of the box body and is movably arranged relative to the outer wall of the box body. The high-pressure pipe located on the outside of the box body near the inlet passes through the second baffle and is fixed to the bottom of the adjustment box; the second vertical adjustment assembly includes a second vertical screw, and the second vertical screw is arranged on the fixed plate on the other side of the box body, and the lower end of the first vertical screw is threadedly connected to the plug. The plug located on the inside of the box body is provided with a third baffle, and the third baffle is close to the inner wall of the box body and is movably arranged relative to the outer wall of the box body.

10. The device for moisture conditioning of grain flour-like powdery particles according to claim 9, characterized in that: A plurality of third oblong through holes are provided on the second baffle plate, and a plurality of first bolts are provided on the corresponding side walls of the box body. The first bolts are passed through the third oblong through holes and are provided with nuts. By loosening the nuts, the upper and lower positions of the second baffle plate can be adjusted; a plurality of second bolts are provided on the third baffle plate, and a plurality of fourth oblong through holes are provided on the corresponding side walls of the box body. The second bolts are passed through the fourth oblong through holes and are provided with nuts. By loosening the nuts, the upper and lower positions of the third baffle plate can be adjusted.

11. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The top of the box body located between the two feed boxes is concave to form a groove, the air inlet is arranged at the bottom of the groove, a pull-out box body is arranged in the groove at the top of the box body, the top and bottom of the pull-out box body are open, and the inside of the pull-out box body is filled with an air filter.

12. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: At least one feed box on the top of the box body is provided with a rotary paddle level meter, and the hopper is also provided with a rotary paddle level meter.

13. The device for moisture conditioning of grain flour-like powdery particles according to claim 1 or 12, characterized in that: An inverted V-shaped diverter plate is provided inside the feed box, and the inverted V-shaped diverter plate is provided at the lower part of the feed box and corresponds to the feed port.

14. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The left and right side walls of the box are respectively equipped with observation glass plates.

15. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: Hand inspection holes are provided at the lower parts of the front and rear side walls of the box body, and hand inspection holes are provided on the side walls of the feed box and the discharge hopper. Hand inspection hole covers are detachably provided on the hand inspection holes.

16. The device for moisture conditioning of grain flour-like powdery particles according to claim 1, characterized in that: The lower parts of the left and right side walls of the box body are provided with mounting openings, and mounting opening blocking plates are detachably provided on the mounting openings.

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