Granular powder adjusting device and process based on monoammonium phosphate production

Abstract

The invention provides a particle powder adjusting device based on monoammonium phosphate production. The particle powder adjusting device comprises a fixed cover, the bottom of the powder receiving cover is communicated with a powder conduction pipe; the top of the powder adjusting cover is communicated with the bottom of the powder conduction pipe, and the bottom of the powder adjusting cover is vertically communicated with a first powder discharging pipe and a second powder discharging pipe; the middle material receiving cover is in a cover shape with an upward opening; the top of the medium material adjusting cover is communicated with the bottom of the medium material receiving cover, and the bottom of the medium material adjusting cover is communicated with a first medium material discharging pipe and a second medium material discharging pipe; the bottom of the large material receiving cover is communicated with a large material discharging pipe; the bottom of the first powder discharging pipe is located above the returned material conveying mechanism, the bottom of the second powder discharging pipe and the bottom of the first middle material discharging pipe are located above the finished product discharging hopper, and the bottom of the second middle material discharging pipe and the bottom of the large material discharging pipe are both located above the outward conveying mechanism. The particle powder adjusting device based on monoammonium phosphate production provided by the invention can be used for producing granular or powdery monoammonium phosphate according to actual requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of monoammonium phosphate production, and relates to a particle powder regulating device and a process thereof in the production of monoammonium phosphate. Background Art

[0002] Monoammonium phosphate, also known as diammonium phosphate, is an inorganic compound with the chemical formula NH4H2PO4. It is a white crystalline powder, slightly soluble in ethanol and insoluble in acetone. It is mainly used as a fire retardant for wood, fabric, and paper. It can also be used as a fertilizer, bread improver, and food additive.

[0003] At present, one of the common processes for producing monoammonium phosphate in the market is the spray granulation process; the slurry entering the granulation section is pumped into the granulation spray gun by the granular finished product pump for atomization, and the atomized slurry contacts the material curtain formed by the return material raised by the granulator (also called rotary kiln) to form granules, and the material is directly in contact with the hot air to transfer mass and heat, and the material is dried. The material out of the dryer goes to the bucket elevator, screened by the cylindrical screen, and the qualified particles (usually with a diameter of 2-4mm) are packaged and stored. The unqualified small particles are used as return materials and enter the granulator for re-granulation (directly passed to the granulator inlet, forming a material curtain in the granulator, which can directly participate in granulation, that is, the diameter can be increased to the required value), and the large particles enter the dissolution tank for dissolution and return to the neutralization and concentration section (by mixing with the raw materials after dissolution, starting from the source again). The granulator drying exhaust is cyclone dust removed and then goes to the exhaust gas washing system. Summary of the invention

[0004] The object of the present invention is to provide a granule-powder regulating device and a process thereof in the production of monoammonium phosphate, aiming to achieve the purpose of producing granular or powdered monoammonium phosphate according to actual needs.

[0005] In order to achieve the above technical effects, the present invention provides a particle powder regulating device based on monoammonium phosphate production, comprising:

[0006] A fixed cover, wherein the fixed cover is inclined, and each longitudinal section of the fixed cover is an arc shape with an opening upward, and a powder discharge port is provided at the bottom of the fixed cover;

[0007] A powder receiving cover, the powder receiving cover is in the shape of a trumpet with an opening facing upward, the top of the powder receiving cover is connected to the periphery of the powder discharge port, and the bottom is connected to a powder conducting pipe;

[0008] A powder regulating cover, wherein the top of the powder regulating cover is connected to the bottom of the powder conducting pipe, the bottom is vertically connected with a first powder discharging pipe, and the side is connected with a second powder discharging pipe;

[0009] a first regulating mechanism, the first regulating mechanism being located in the powder regulating cover and being used for guiding the material in the powder conducting pipe into the first powder discharging pipe or the second powder discharging pipe;

[0010] a first screening cylinder and a second screening cylinder located outside the first screening cylinder, the first screening cylinder, the second screening cylinder and the fixed cover are all coaxial, the second screening cylinder is separated from the fixed cover and the first screening cylinder, a plurality of screening holes are provided on the first screening cylinder and the second screening cylinder, and the diameter of the screening holes on the first screening cylinder is larger than the diameter of the screening holes on the second screening cylinder, the downstream end of the second screening cylinder is located outside the fixed cover, and the downstream end of the first screening cylinder is located outside the second screening cylinder;

[0011] A driving mechanism, the driving mechanism is used to drive the first screening drum and the second screening drum to rotate;

[0012] A middle material receiving cover, the middle material receiving cover is in the shape of a cover with an opening upward;

[0013] A middle material regulating cover, wherein the top of the middle material regulating cover is connected to the bottom of the middle material receiving cover, the bottom is connected to be provided with a first middle material discharging pipe, and the side is connected to be provided with a second middle material discharging pipe;

[0014] a second regulating mechanism, the second regulating mechanism being located in the middle material regulating cover and being used for guiding the material in the middle material regulating cover into the first middle material discharging pipe or the second middle material discharging pipe;

[0015] A large material receiving cover, the bottom of which is connected to a large material discharging pipe;

[0016] The return material conveying mechanism, the finished product hopper and the external delivery conveying mechanism are distributed in sequence, the bottom of the first powder material discharge pipe is located above the return material conveying mechanism, the finished product hopper is through-through from top to bottom, the bottom of the second powder material discharge pipe and the bottom of the first medium material discharge pipe are both located above the finished product hopper, the bottom of the second medium material discharge pipe and the bottom of the large material discharge pipe are both located above the external delivery conveying mechanism.

[0017] The present invention is further configured such that the powder adjustment cover is in the shape of a hollow cylinder, the first adjustment mechanism comprises a first adjustment column coaxially arranged in the powder adjustment cover, a plurality of first adjustment sheets are divergently arranged on the outer wall of the first adjustment column, a set gap or movable fit is formed between the free end and both sides of the first adjustment sheet and the inner wall of the powder adjustment cover, when the top of the first adjustment column rotates along the X direction, the first adjustment column and the first adjustment sheet deliver the material in the powder conduction tube into the second powder discharge tube, and when the top of the first adjustment column rotates along the -X direction, the first adjustment column and the first adjustment sheet deliver the material in the powder conduction tube into the first powder discharge tube.

[0018] The present invention is further configured such that first integral disks are provided on the outer walls at both ends of the first adjusting column, ends of all the first adjusting sheets are fixedly connected to the first integral disks, a groove matching the first integral disks is provided on the powder adjusting cover, and a set gap is provided between the free end of the first adjusting sheet and the inner wall of the powder adjusting cover.

[0019] The present invention is further configured as follows: the middle material adjustment cover is in the shape of a hollow cylinder; the second adjustment mechanism comprises a second adjustment column coaxially arranged in the powder material adjustment cover; a plurality of second adjustment sheets are divergently arranged on the outer wall of the second adjustment column; a set gap or movable fit is provided between the free end and both sides of the second adjustment sheet and the inner wall of the middle material adjustment cover; when the top of the second adjustment column rotates along the X direction, the second adjustment column and the second adjustment sheet deliver the material in the middle material receiving cover into the second middle material discharge pipe; and when the top of the second adjustment column rotates along the -X direction, the second adjustment column and the second adjustment sheet deliver the material in the middle material receiving cover into the second powder material discharge pipe.

[0020] The present invention is further configured such that the outer walls at both ends of the second adjusting column are provided with a second integrated disk, the ends of all the second adjusting sheets are fixedly connected to the second integrated disk, a groove matching the second integrated disk is provided on the middle material adjusting cover, and a set gap is provided between the free end of the second adjusting sheet and the inner wall of the powder material adjusting cover.

[0021] The present invention is further configured such that an integral ring is provided between the tops of the first screening cylinder and the second screening cylinder, and the inner side and the outer side of the integral ring are fixedly connected to the upstream ends of the first screening cylinder and the second screening cylinder respectively.

[0022] The present invention is further configured as follows: a passive ring is arranged on the outside of the one-piece ring, an internal tooth body is arranged on the inside of the passive ring, and an external tooth body is arranged on the outside; an upper end plate with a fixed position is arranged on the upstream end of the fixed cover, a feed pipe is provided through the middle of the upper end plate, a trumpet-shaped feed hopper with an opening upward is arranged on the outer end of the feed pipe, the inner end of the feed pipe is communicated with the inner cavity of the first screening cylinder, a driving gear and a plurality of supporting gears are rotatably arranged on the inner wall of the upper end plate, all of the supporting gears are meshed with the internal tooth body, the driving gear is meshed with the external tooth body, a transmission column is coaxially arranged on the outer side of the driving gear and is rotatably connected to the upper end plate through the transmission column, and a rotating passive wheel is arranged on the outer end of the transmission column;

[0023] A power frame is provided at the bottom of the fixed cover, a power motor is provided on the power frame, a power rod is provided on the output shaft of the power motor, a rotating driving wheel is provided on the power rod, and a rotating transmission member is provided between the rotating driving wheel and the rotating driven wheel;

[0024] An annular support ring is also provided on the inner wall of the downstream end of the fixed cover, and a plurality of U-shaped support frames are evenly distributed in a circle on the support ring, and a first support wheel and a second support wheel are rotatably provided on each of the support frames. An annular stabilizing ring is provided on the outer wall of the second screening cylinder, and all the first support wheels are movable against the outer wall of the second screening cylinder, and all the second support wheels are movable against the downstream side of the stabilizing ring.

[0025] The present invention is further configured such that a plurality of stabilizing rods are arranged at intervals between the inner wall of the downstream end of the second screening cylinder and the outer wall of the first screening cylinder.

[0026] The present invention is further configured such that a first linkage column is coaxially arranged on the first adjusting column, the first linkage column movably passes through the powder receiving cover, and a first linkage disk and a second linkage disk are arranged on the outer wall of the first linkage column, a second linkage column is coaxially arranged on the second adjusting column, the second linkage column movably passes through the medium material receiving cover, and a third linkage disk is arranged on the second adjusting column;

[0027] The power rod is also provided with a material unloading driving wheel, and a transmission rod and an adjusting rod are rotatably provided at the bottom of the power frame. A material unloading passive wheel is provided at one end of the transmission rod, and a driving bevel gear is provided at the other end. A material unloading transmission member is movably sleeved on the outer wall of the material unloading passive wheel and the material unloading driving wheel;

[0028] The adjusting rod is provided with a first passive bevel gear and a second passive bevel gear, the first passive bevel gear and the second passive bevel gear are located on both sides of the active bevel gear, and the active bevel gear is meshed with the first passive bevel gear or the second passive bevel gear;

[0029] The adjusting rod comprises a first smooth portion, a rectangular portion and a second smooth portion which are connected in sequence, a support cylinder is horizontally arranged on the outer side of the power frame, the first smooth portion is rotatably and movably connected to the power frame, the second smooth portion is rotatably and movably connected to the power frame and the support cylinder, the first passive bevel gear and the second passive bevel gear are both located on the first smooth portion, a driving cylinder or an electric push rod for driving the first smooth portion to move is arranged on the power frame, the driving cylinder or the electric push rod is used to drive the first smooth portion to move along the length direction of the first smooth portion, and the first smooth portion is rotatably connected to the output shaft of the driving cylinder or the electric push rod;

[0030] The longitudinal cross-section of the rectangular portion is a rectangle, and the two end edges of the rectangular portion are respectively located on the inner sides of the edges of the first smooth portion and the second smooth portion. A transmission wheel is rotatably arranged on the power frame, and a hole is opened in the middle of the transmission wheel to flexibly cooperate with the rectangular portion. A first transmission belt is arranged between the outer wall of the transmission wheel and the outer wall of the first linkage disk, and a second transmission belt is arranged between the outside of the second linkage disk and the outer wall of the third linkage disk.

[0031] The present invention also provides a process for adjusting using the particle powder adjusting device in monoammonium phosphate production as described in any one of the above items, comprising the following steps:

[0032] S1, adding monoammonium phosphate material to the upstream end of the first screening cylinder, and the driving mechanism drives the first screening cylinder and the second screening cylinder to rotate;

[0033] S2, the material with a particle size smaller than the diameter of the sieve hole on the first screening cylinder passes through the first screening cylinder into the second screening cylinder, the material with a particle size smaller than the diameter of the sieve hole on the second screening cylinder passes through the second screening cylinder through the powder material outlet and falls into the powder receiving cover, the material in the second screening cylinder falls into the medium material receiving cover, and the material in the first screening cylinder falls into the large material receiving cover;

[0034] S3, depending on whether the desired finished product is granular or powdered material, select one of the following:

[0035] S3-1, if granular monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover and the powder conducting pipe into the first powder discharging pipe, and then the materials fall onto the return material conveying mechanism and are sent back to the granulator; the second regulating mechanism guides the materials in the intermediate material receiving cover into the first intermediate material discharging pipe, and then the materials fall into the finished product hopper, and are introduced into the ton bag or finished product warehouse through the finished product hopper; the materials in the large material discharging pipe fall onto the external delivery conveying mechanism and are sent out to the dissolving tank for dissolution;

[0036] S3-2, if powdered monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover and the powder conducting pipe into the second powder discharging pipe, and then the materials fall into the finished product hopper, and are introduced into the ton bag or finished product warehouse through the finished product hopper; the second regulating mechanism guides the materials in the medium material receiving cover into the second medium material discharging pipe, and then the materials fall onto the external delivery conveying mechanism, and the materials in the large material discharging pipe fall onto the external delivery conveying mechanism, and the external delivery conveying mechanism sends all the materials outward to the dissolution tank for dissolution.

[0037] Compared with the prior art, the present invention provides a particle-powder regulating device based on the production of monoammonium phosphate. In today's society, there is an overcapacity of granular monoammonium phosphate, and at the same time, the market demand at home and abroad varies greatly. Therefore, in order to adapt to market demand and enhance the comprehensive competitiveness of enterprises, the production equipment of monoammonium phosphate is currently being transformed, and the current production equipment can produce both granular monoammonium phosphate and powdered monoammonium phosphate according to market needs. Among them, the common production equipment of monoammonium phosphate mainly includes a granulator (or rotary kiln), a material pipe for adding materials to the feeding port of the granulator and a hot air furnace for injecting high-temperature air, an elevator, a double-layer cylindrical screen, a powder scraper conveyor, a large particle material scraper conveyor and a finished product warehouse; during the production process, the material is sprayed into the feeding port of the granulator through a granulating spray gun to spray the monoammonium phosphate slurry into the feeding port of the granulator, and at the same time, the hot air furnace generates high-temperature air, and the role of the internal copying plate of the granulator makes the monoammonium phosphate granulate, and finally enters the feeding port of the elevator after being guided out from the end of the granulator; the elevator lifts the material and sends it into the cylindrical screen, and the cylinder The mesh inside the sieve is larger, which is used to directly guide the oversized materials to the large particle scraper conveyor and then send them out to the dissolving tank (because the particles are too large to form a material curtain, even if they are sent back to the granulator, the diameter will only be larger, so they are sent to the dissolving tank for dissolution, and then sent back to the neutralization and concentration kettle. At the same time, the neutralization and concentration kettle contains phosphoric acid and ammonia gas, which is the raw material; then heated and concentrated to form a slurry and then sent to the granulator again). The powdered material that has passed through the two layers of cylindrical screens is transported back to the material pipe through the powder scraper conveyor, and then directly sent to the granulator to form a material curtain for granulation again. At the same time, the material between the two layers of cylindrical screens is granular monoammonium phosphate, which is the product object, and its usual particle size is 2-4mm.

[0038] The structure of the present application is also used in conjunction with the above structure when in use, that is, the present application is used in conjunction with an elevator, a granulator, a hot air furnace, etc. At the same time, the return material conveying mechanism and the external conveying mechanism in the present application are also preferably conventional structures such as a scraper or a conveyor belt.

[0039] When the present application is used, firstly, the monoammonium phosphate material is added to the upstream end of the first screening cylinder, and the driving mechanism drives the first screening cylinder and the second screening cylinder to rotate; the material with a particle size smaller than the diameter of the sieve hole on the first screening cylinder passes through the first screening cylinder and enters the second screening cylinder, and the material with a particle size smaller than the diameter of the sieve hole on the second screening cylinder passes through the second screening cylinder through the powder material discharge port and falls into the powder material receiving cover, the material in the second screening cylinder falls into the medium material receiving cover, and the material in the first screening cylinder falls into the large material receiving cover;

[0040] Depending on whether the desired finished product is a granular material or a powdered material, select one of the following:

[0041] If granular monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover and the powder conducting pipe into the first powder discharging pipe, and then the materials fall onto the return material conveying mechanism and are sent back to the granulator; the second regulating mechanism guides the materials in the medium material receiving cover into the first medium material discharging pipe, and then the materials fall into the finished product hopper, and are introduced into the ton bag or finished product warehouse through the finished product hopper; the materials in the large material discharging pipe fall onto the external delivery conveying mechanism and are sent out to the dissolving tank for dissolution;

[0042] If powdered monoammonium phosphate is produced, the first regulating mechanism guides the material in the powder receiving cover and the powder conducting pipe into the second powder discharging pipe, and the material drops into the finished product hopper, and is introduced into the ton bag or the finished product warehouse through the finished product hopper; the second regulating mechanism guides the material in the medium material receiving cover into the second medium material discharging pipe, and the material drops onto the external delivery conveying mechanism, and the material in the large material discharging pipe falls onto the external delivery conveying mechanism, and the external delivery conveying mechanism sends all the material outward to the dissolution tank for dissolution.

[0043] That is, if the product is granular monoammonium phosphate, the powdered monoammonium phosphate is sent back to the granulator by the return material conveying mechanism, the granular material is loaded into the ton bag or finished product bin (which is a common container), and the large-particle material is sent back to the dissolving tank for dissolution; if the product is powdered monoammonium phosphate, the powdered monoammonium phosphate is sent into the ton bag or finished product bin, and the granular and over-diameter monoammonium phosphate are sent into the dissolving tank for dissolution, and then sent into the granulator again as a raw material. At the same time, the present application can also be connected to the side of the granulation spray gun to set a compressed air pipe, so that when producing powdered monoammonium phosphate, compressed air is injected into the compressed air pipe, and the slurry is blown away and then enters the granulator (if the product is granular monoammonium phosphate, compressed air is not blown in). At the same time, if the product is powdered monoammonium phosphate, the return material conveying mechanism does not need to be started and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a schematic diagram of the particle powder regulating device in the production of monoammonium phosphate according to the present invention when in use;

[0045] Figure 2 The present invention is a schematic diagram of a particle powder regulating device in monoammonium phosphate production. Figure 1 ;

[0046] Figure 3 yes Figure 2 A magnified view of part A;

[0047] Figure 4 yes Figure 2 A magnified view of part B;

[0048] Figure 5 yes Figure 2 Enlarged view of part C;

[0049] Figure 6 The present invention is a schematic diagram of a particle powder regulating device in monoammonium phosphate production. Figure 2 ;

[0050] Figure 7 yes Figure 6 A magnified view of part D in the middle;

[0051] Figure 8 is a cross-sectional view of a particle powder regulating device in monoammonium phosphate production according to the present invention;

[0052] Fig. 9 yes Figure 8 Enlarged view of part E in the middle;

[0053] Fig.10 yes Figure 8 Enlarged view of part F;

[0054] Fig.11 yes Figure 8 Enlarged view of section G;

[0055] Fig.12 yes Figure 8 Enlarged view of section H;

[0056] Fig.13 It is a cross-sectional view of the regulating rod part of the granular powder regulating device in the production of monoammonium phosphate according to the present invention;

[0057] Fig.14 It is a cross-sectional view of a supporting gear portion in a granular powder regulating device in monoammonium phosphate production according to the present invention;

[0058] Fig.15It is a schematic diagram of the second regulating column in the granular powder regulating device in the production of monoammonium phosphate according to the present invention.

[0059] Among them, 1. fixed cover; 2. powder receiving cover; 3. powder conducting pipe; 4. powder regulating cover; 5. first powder discharging pipe; 6. second powder discharging pipe; 7. first screening cylinder; 8. second screening cylinder; 9. medium material receiving cover; 10. medium material regulating cover; 11. first medium material discharging pipe; 12. second medium material discharging pipe; 13. large material receiving cover; 14. large material discharging pipe; 15. return material conveying mechanism; 16. finished product discharge hopper; 17. external delivery conveying mechanism; 18. first regulating column; 19. first regulating sheet; 20. first integrated disk; 21. second regulating column; 22. second regulating sheet; 23. second integrated disk; 24. integrated ring; 25. passive ring; 26. internal gear body; 27. external gear body; 28. upper end plate; 29a. feed pipe; 29b. feed hopper; 30. driving gear; 31. supporting gear; 32. Transmission column; 33, rotating passive wheel; 34, power frame; 35, power motor; 36, power rod; 37, rotating active wheel; 38, rotating transmission member; 39, support ring; 40, support frame; 41, first support wheel; 42, second support wheel; 43, stabilizing ring; 44, stabilizing rod; 45, first linkage column; 46, first linkage disk; 47, second linkage disk; 48, second linkage column; 49, third linkage disk; 50, unloading active wheel; 51, transmission rod; 52, adjustment rod; 52a, first smooth part; 52b, rectangular part; 52c, second smooth part; 53, unloading passive wheel; 54, active bevel gear; 55, unloading transmission member; 56, first passive bevel gear; 57, second passive bevel gear; 58, support cylinder; 59, driving cylinder; 60, transmission wheel; 61, first transmission belt; 62, second transmission belt. DETAILED DESCRIPTION

[0060] The following is a further detailed description of the particle powder regulating device and process for monoammonium phosphate production proposed by the present invention in combination with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar reference numerals in the accompanying drawings represent the same or similar components.

[0061] A particle powder regulating device based on monoammonium phosphate production, such as Figures 1 to 15 Shown include:

[0062] A fixed cover 1, wherein the fixed cover 1 is inclined, and each longitudinal section of the fixed cover 1 is an arc shape with an opening upward, and a powder discharge port is provided at the bottom of the fixed cover 1;

[0063] A powder receiving cover 2, the powder receiving cover 2 is in a trumpet shape with an opening facing upward, the top of the powder receiving cover 2 is connected to the periphery of the powder discharge port, and the bottom is connected to a powder conducting pipe 3;

[0064] A powder regulating cover 4, the top of which is in communication with the bottom of the powder conducting pipe 3, the bottom of which is vertically connected with a first powder discharging pipe 5, and the side of which is connected with a second powder discharging pipe 6;

[0065] A first regulating mechanism, which is located in the powder regulating cover 4 and is used to guide the material in the powder conducting pipe 3 into the first powder discharging pipe 5 or the second powder discharging pipe 6;

[0066] A first screening drum 7 and a second screening drum 8 located outside the first screening drum 7, the first screening drum 7, the second screening drum 8 and the fixed cover 1 are all coaxial, the second screening drum 8 is separated from the fixed cover 1 and the first screening drum 7, the first screening drum 7 and the second screening drum 8 are both provided with a plurality of screening holes, and the diameter of the screening holes on the first screening drum 7 is greater than the diameter of the screening holes on the second screening drum 8 (for example, the diameter of the screening holes on the first screening drum 7 is 4 mm, and the diameter of the screening holes on the second screening drum 8 is 2 mm), the downstream end of the second screening drum 8 is located outside the fixed cover 1, and the downstream end of the first screening drum 7 is located outside the second screening drum 8;

[0067] A driving mechanism, the driving mechanism is used to drive the first screening drum 7 and the second screening drum 8 to rotate;

[0068] A middle material receiving cover 9, wherein the middle material receiving cover 9 is in the shape of a cover with an opening upward;

[0069] A middle material regulating cover 10, the top of which is connected to the bottom of the middle material receiving cover 9, the bottom of which is connected to a first middle material discharging pipe 11, and the side of which is connected to a second middle material discharging pipe 12;

[0070] A second regulating mechanism, which is located in the middle material regulating cover 10 and is used to guide the material in the middle material regulating cover 10 into the first middle material discharging pipe 11 or the second middle material discharging pipe 12;

[0071] The bottom of the large material receiving cover 13 is connected to a large material discharging pipe 14;

[0072] The return material conveying mechanism 15, the finished product hopper 16 and the external delivery conveying mechanism 17 are distributed in sequence, the bottom of the first powder material discharge pipe 5 is located above the return material conveying mechanism 15, the finished product hopper 16 is through-through, the bottom of the second powder material discharge pipe 6 and the bottom of the first medium material discharge pipe 11 are both located above the finished product hopper 16, the bottom of the second medium material discharge pipe 12 and the bottom of the large material discharge pipe 14 are both located above the external delivery conveying mechanism 17.

[0073] The powder regulating cover 4 is in the shape of a hollow cylinder, and the first regulating mechanism includes a first regulating column 18 coaxially arranged in the powder regulating cover 4, and a plurality of first regulating sheets 19 are divergently arranged on the outer wall of the first regulating column 18, and a set gap or movable fit is formed between the free end and both sides of the first regulating sheet 19 and the inner wall of the powder regulating cover 4. When the top of the first regulating column 18 rotates along the X direction, the first regulating column 18 and the first regulating sheet 19 send the material in the powder conducting tube 3 into the second powder discharging tube 6, and when the top of the first regulating column 18 rotates along the -X direction, the first regulating column 18 and the first regulating sheet 19 send the material in the powder conducting tube 3 into the first powder discharging tube 5.

[0074] The outer walls at both ends of the first adjustment column 18 are provided with a first integrated disk 20, and the ends of all the first adjustment pieces 19 are fixedly connected to the first integrated disk 20. A groove matching the first integrated disk 20 is opened on the powder adjustment cover 4, and a set gap is provided between the free end of the first adjustment piece 19 and the inner wall of the powder adjustment cover 4.

[0075] The middle material adjustment cover 10 is in the shape of a hollow cylinder, and the second adjustment mechanism includes a second adjustment column 21 coaxially arranged in the powder adjustment cover 4, and a plurality of second adjustment sheets 22 are divergently arranged on the outer wall of the second adjustment column 21, and a set gap or movable fit is formed between the free end and both sides of the second adjustment sheet 22 and the inner wall of the middle material adjustment cover 10. When the top of the second adjustment column 21 rotates along the X direction, the second adjustment column 21 and the second adjustment sheet 22 deliver the material in the middle material receiving cover 9 into the second middle material discharge pipe 12; when the top of the second adjustment column 21 rotates along the -X direction, the second adjustment column 21 and the second adjustment sheet 22 deliver the material in the middle material receiving cover 9 into the second powder discharge pipe 6.

[0076] The outer walls at both ends of the second adjustment column 21 are provided with a second integrated disk 23, and the ends of all the second adjustment pieces 22 are fixedly connected to the second integrated disk 23. A groove matching the second integrated disk 23 is provided on the middle material adjustment cover 10, and a set gap is provided between the free end of the second adjustment piece 22 and the inner wall of the powder adjustment cover 4.

[0077] An integral ring 24 is provided between the tops of the first screening cylinder 7 and the second screening cylinder 8 , and the inner side and the outer side of the integral ring 24 are fixedly connected to the upstream ends of the first screening cylinder 7 and the second screening cylinder 8 , respectively.

[0078] A passive ring 25 is arranged outside the one-piece ring 24, an internal tooth body 26 is arranged inside the passive ring 25, and an external tooth body 27 is arranged outside the passive ring 25, a fixed upper end plate 28 is arranged at the upstream end of the fixed cover 1, a feed pipe 29a is opened through the middle of the upper end plate 28, a trumpet-shaped feed hopper 29b with an opening upward is arranged at the outer end of the feed pipe 29a, the inner end of the feed pipe 29a is communicated with the inner cavity of the first screening cylinder 7, a driving gear 30 and a plurality of supporting gears 31 are rotatably arranged on the inner wall of the upper end plate 28, all of the supporting gears 31 are meshed with the internal tooth body 26, the driving gear 30 is meshed with the external tooth body 27, a transmission column 32 is coaxially arranged on the outer side of the driving gear 30 and is rotatably connected to the upper end plate 28 through the transmission column 32, and a rotating passive wheel 33 is arranged at the outer end of the transmission column 32;

[0079] A power frame 34 is provided at the bottom of the fixed cover 1, a power motor 35 is provided on the power frame 34, a power rod 36 is provided on the output shaft of the power motor 35, a rotating driving wheel 37 is provided on the power rod 36, and a rotating transmission member 38 is provided between the rotating driving wheel 37 and the rotating driven wheel 33;

[0080] An annular support ring 39 is also provided on the inner wall of the downstream end of the fixed cover 1, and a plurality of U-shaped support frames 40 are evenly distributed in a circular shape on the support ring 39, and a first support wheel 41 and a second support wheel 42 are rotatably provided on each of the support frames 40. An annular stabilizing ring 43 is provided on the outer wall of the second screening drum 8, and all the first support wheels 41 are movable against the outer wall of the second screening drum 8, and all the second support wheels 42 are movable against the downstream side of the stabilizing ring 43.

[0081] A plurality of stabilizing rods 44 are disposed between the inner wall of the downstream end of the second screening drum 8 and the outer wall of the first screening drum 7 .

[0082] A first linkage column 45 is coaxially arranged on the first adjustment column 18, and the first linkage column 45 movably passes through the powder receiving cover 2, and a first linkage disk 46 and a second linkage disk 47 are arranged on the outer wall of the first linkage column 45; a second linkage column 48 is coaxially arranged on the second adjustment column 21, and the second linkage column 48 movably passes through the medium material receiving cover 9; a third linkage disk 49 is arranged on the second adjustment column 21;

[0083] The power rod 36 is also provided with a material unloading driving wheel 50, and the bottom of the power frame 34 is also rotatably provided with a transmission rod 51 and an adjustment rod 52, one end of the transmission rod 51 is provided with a material unloading passive wheel 53, and the other end is provided with an active bevel gear 54, and a material unloading transmission member 55 is movably sleeved on the outer wall of the material unloading passive wheel 53 and the material unloading driving wheel 50;

[0084] The adjusting rod 52 is provided with a first passive bevel gear 56 and a second passive bevel gear 57, the first passive bevel gear 56 and the second passive bevel gear 57 are located on both sides of the active bevel gear 54, and the active bevel gear 54 is meshed with the first passive bevel gear 56 or the second passive bevel gear 57;

[0085] The adjusting rod 52 includes a first smooth portion 52a, a rectangular portion 52b and a second smooth portion 52c which are connected in sequence. A support tube 58 is horizontally arranged on the outer side of the power frame 34. The first smooth portion 52a is rotatable and movably connected to the power frame 34. The second smooth portion 52c is rotatable and movably connected to the power frame 34 and the support tube 58. The first passive bevel gear 56 and the second passive bevel gear 57 are both located on the first smooth portion 52a. A driving cylinder 59 or an electric push rod for driving the first smooth portion 52a to move is arranged on the power frame 34. The driving cylinder 59 or the electric push rod is used to drive the first smooth portion 52a to move along the length direction of the first smooth portion 52a. The first smooth portion 52a is rotatably connected to the output shaft of the driving cylinder 59 or the electric push rod.

[0086] The longitudinal section of the rectangular portion 52b is rectangular, and the two end edges of the rectangular portion 52b are respectively located on the inner sides of the edges of the first smooth portion 52a and the second smooth portion 52c. A transmission wheel 60 is rotatably arranged on the power frame 34, and a hole is opened in the middle of the transmission wheel 60 to flexibly cooperate with the rectangular portion 52b. A first transmission belt 61 is arranged between the outer wall of the transmission wheel 60 and the outer wall of the first linkage disk 46, and a second transmission belt 62 is arranged between the outside of the second linkage disk 47 and the outer wall of the third linkage disk 49.

[0087] The present invention also provides a process for adjusting using the particle powder adjusting device in monoammonium phosphate production as described in any one of the above items, comprising the following steps:

[0088] S1, adding monoammonium phosphate material to the upstream end of the first screening drum 7, and the driving mechanism drives the first screening drum 7 and the second screening drum 8 to rotate;

[0089] S2, the material with a particle size smaller than the diameter of the sieve hole on the first screening cylinder 7 enters the second screening cylinder 8 through the first screening cylinder 7, and the material with a particle size smaller than the diameter of the sieve hole on the second screening cylinder 8 passes through the second screening cylinder 8 through the powder material discharge port and falls into the powder receiving cover 2, the material in the second screening cylinder 8 falls into the medium material receiving cover 9, and the material in the first screening cylinder 7 falls into the large material receiving cover 13;

[0090] S3, depending on whether the desired finished product is granular or powdered material, select one of the following:

[0091] S3-1, if granular monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover 2 and the powder conducting pipe 3 into the first powder discharge pipe 5, and then the materials fall onto the return material conveying mechanism 15 and are sent back to the granulator; the second regulating mechanism guides the materials in the intermediate material receiving cover 9 into the first intermediate material discharge pipe 11, and then the materials fall into the finished product discharge hopper 16, and are introduced into the ton bag or the finished product warehouse through the finished product discharge hopper 16; the materials in the large material discharge pipe 14 fall onto the external delivery conveying mechanism 17 and are sent out to the dissolution tank for dissolution;

[0092] S3-2, if powdered monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover 2 and the powder conducting tube 3 into the second powder discharge tube 6, and then drops into the finished product hopper 16, and is introduced into the ton bag or the finished product warehouse through the finished product hopper 16; the second regulating mechanism guides the materials in the medium material receiving cover 9 into the second medium material discharge tube 12, and then drops onto the external delivery conveying mechanism 17, and the materials in the large material discharge tube 14 fall onto the external delivery conveying mechanism 17, and the external delivery conveying mechanism 17 sends all the materials outward to the dissolution tank for dissolution.

[0093] The present invention provides a particle-powder regulating device based on the production of monoammonium phosphate. In today's society, there is an overcapacity of granular monoammonium phosphate. At the same time, the market demand at home and abroad varies greatly. Therefore, in order to adapt to market demand and enhance the comprehensive competitiveness of enterprises, the production equipment of monoammonium phosphate is currently being transformed, and the current production equipment can produce both granular monoammonium phosphate and powdered monoammonium phosphate according to market needs. Among them, the common production equipment of monoammonium phosphate mainly includes a granulator (or rotary kiln), a material pipe for adding materials to the feeding port of the granulator and a hot air furnace for injecting high-temperature air, an elevator, a double-layer cylindrical screen, a powder scraper conveyor, a large-particle material scraper conveyor and a finished product warehouse; during the production process, the material is sprayed into the feeding port of the granulator through a granulating spray gun to spray the monoammonium phosphate slurry into the feeding port of the granulator, and at the same time, the hot air furnace generates high-temperature air, and the role of the internal copying plate of the granulator makes the monoammonium phosphate granulate, and finally enters the feeding port of the elevator after being guided out from the end of the granulator; the elevator lifts the material and sends it into the cylindrical screen, and the cylinder The mesh inside the sieve is larger, which is used to directly guide the oversized materials to the large particle scraper conveyor and then send them out to the dissolving tank (because the particles are too large to form a material curtain, even if they are sent back to the granulator, the diameter will only be larger, so they are sent to the dissolving tank for dissolution, and then sent back to the neutralization and concentration kettle. At the same time, the neutralization and concentration kettle contains phosphoric acid and ammonia gas, which is the raw material; then heated and concentrated to form a slurry and then sent to the granulator again). The powdered material that has passed through the two layers of cylindrical screens is transported back to the material pipe through the powder scraper conveyor, and then directly sent to the granulator to form a material curtain for granulation again. At the same time, the material between the two layers of cylindrical screens is granular monoammonium phosphate, which is the product object, and its usual particle size is 2-4mm.

[0094] The structure of the present application is also used in conjunction with the above structure when in use, that is, the present application is used in conjunction with an elevator, a granulator, a hot air furnace, etc. At the same time, the return conveying mechanism 15 and the external conveying mechanism 17 in the present application are also preferably conventional structures such as scrapers or conveyor belts.

[0095] When the present application is used, firstly, the monoammonium phosphate material is added to the upstream end of the first screening cylinder 7, and the driving mechanism drives the first screening cylinder 7 and the second screening cylinder 8 to rotate; the material with a particle size smaller than the diameter of the sieve hole on the first screening cylinder 7 enters the second screening cylinder 8 through the first screening cylinder 7, and the material with a particle size smaller than the diameter of the sieve hole on the second screening cylinder 8 passes through the second screening cylinder 8 through the powder material discharge port and falls into the powder material receiving cover 2, the material in the second screening cylinder 8 falls into the medium material receiving cover 9, and the material in the first screening cylinder 7 falls into the large material receiving cover 13;

[0096] Depending on whether the desired finished product is a granular material or a powdered material, select one of the following:

[0097] If granular monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover 2 and the powder conducting pipe 3 into the first powder discharging pipe 5, and then the materials fall onto the return material conveying mechanism 15 and are sent back to the granulator; the second regulating mechanism guides the materials in the medium material receiving cover 9 into the first medium material discharging pipe 11, and then the materials fall into the finished product discharge hopper 16, and are introduced into the ton bag or the finished product warehouse through the finished product discharge hopper 16; the materials in the large material discharge pipe 14 fall onto the external delivery conveying mechanism 17 and are sent out to the dissolving tank for dissolution;

[0098] If powdered monoammonium phosphate is produced, the first regulating mechanism guides the materials in the powder receiving cover 2 and the powder conducting tube 3 into the second powder discharge tube 6, and then the materials fall into the finished product hopper 16, and are introduced into the ton bag or the finished product warehouse through the finished product hopper 16; the second regulating mechanism guides the materials in the medium material receiving cover 9 into the second medium material discharge tube 12, and then the materials fall onto the external delivery conveying mechanism 17, and the materials in the large material discharge tube 14 fall onto the external delivery conveying mechanism 17, and the external delivery conveying mechanism 17 sends all the materials outward to the dissolution tank for dissolution.

[0099] That is, if the product is granular monoammonium phosphate, the powdered monoammonium phosphate is sent back to the granulator by the return material conveying mechanism 15, the granular material is loaded into the ton bag or the finished product bin (which is a common container), and the large-particle material is sent back to the dissolving tank for dissolution; if the product is powdered monoammonium phosphate, the powdered monoammonium phosphate is sent into the ton bag or the finished product bin, and the granular and over-diameter monoammonium phosphate are sent into the dissolving tank for dissolution, and then sent into the granulator again as a raw material. At the same time, the present application can also be connected to the side of the granulation spray gun to set a compressed air pipe, so that when producing powdered monoammonium phosphate, compressed air is injected into the compressed air pipe, and the slurry is blown away and then enters the granulator (if the product is granular monoammonium phosphate, compressed air is not blown in). At the same time, if the product is powdered monoammonium phosphate, the return material conveying mechanism 15 does not need to be started and used.

[0100] In the actual production process, the elevator lifts the material into the feed hopper 29b, and directly feeds it into the inner cavity of the first screening drum 7 through the feed pipe 29a; at the same time, the power motor 35 drives the power rod 36 to rotate, and the power rod 36 drives the transmission column 32 and the driving gear 30 to rotate by rotating the active wheel 37, the transmission member 38 and the passive wheel 33, so that the driving gear 30 can drive the passive ring 25 and the integral ring 24 to rotate through the external tooth body 27, so that the first screening drum 7 and the second screening drum 8 can be driven to rotate at the same time. At the same time, since the first screening drum 7 and the second screening drum 8 are both inclined, the material can naturally move downstream and screen the material at the same time.

[0101] When the power rod 36 rotates, it also drives the active bevel gear 54, the first passive bevel gear 56 or the second passive bevel gear 57, the adjusting rod 52, the transmission wheel 60, the first linkage disk 46, the second linkage disk 47, the third linkage disk 49, the first linkage column 45, the second linkage column 48, the first adjustment column 18, the first adjustment plate 19, the second adjustment column 21 and the second adjustment plate 22 to rotate in sequence through the unloading active wheel 50 and the unloading transmission member 55. In addition, at this time, the first adjustment column 18 and the second adjustment column 21 The rotation direction is still the same, that is, if granular monoammonium phosphate is needed at this time, the tops of the first adjustment column 18 and the second adjustment column 21 are both moved toward the -X direction (that is, both rotate counterclockwise), so that the first adjustment column 18 and the more first adjustment pieces 19 can introduce all the powdered monoammonium phosphate into the first powder material discharge pipe 5, and the second adjustment column 21 and the more second adjustment pieces 22 can introduce all the medium-sized monoammonium phosphate into the first medium material discharge pipe 11, and fall into the finished product lower hopper 16. Since the first passive bevel gear 56 and the second passive bevel gear 57 are located on both sides of the active bevel gear 54, the first passive bevel gear 56 or the second passive bevel gear 57 can be meshed with the active bevel gear 54 by only driving the cylinder body 59 or the electric push rod to drive the first smooth part 52a to move, and the first adjustment column 18 and the second adjustment column 21 can be adjusted to rotate clockwise or counterclockwise at the same time, and the operation effect is better and the convenience is high. The piston rod of the driving cylinder 59 or the electric push rod and the first smooth portion 52a are rotationally connected (for example, there is a bearing between the two, or the end of the piston rod has a spherical shell, the end of the first smooth portion 52a has a spherical body, the spherical body is rotatably sleeved on the inner wall of the spherical shell, and the first smooth portion 52a passes through the spherical shell), so that the first smooth portion 52a can rotate without affecting the driving cylinder 59 or the electric push rod.

[0102] During the whole process of the electric push rod or the drive cylinder 59 driving the first smooth part 52a to move, the power frame 34 and the support cylinder 58 respectively continue to support the first smooth part 52a and the second smooth part 52c, so that the adjustment rod 52 can rotate stably; at the same time, since the longitudinal section of the rectangular part 52b is rectangular, and the hole in the middle of the transmission wheel 60 matches the longitudinal section of the rectangular part 52b, no matter where the rectangular part 52b moves, the rectangular part 52b can normally drive the transmission wheel 60 to rotate, and at the same time, the first linkage disk 46, the second linkage disk 47 and the third linkage disk 49 are driven to rotate through the first transmission belt 61 and the second transmission belt 62. All the transmission members (i.e., the rotating transmission member 38, etc.) in this application can be either belts or chains, and other structures that cooperate with the transmission members are also compatible structures. For example, if the first transmission belt 61 is a chain, the transmission wheel 60 and the first linkage disk 46 are both sprockets.

[0103] The inner side of the passive ring 25 is supported by a plurality of supporting gears 31, so the position of the integral ring 24 can be ensured; at the same time, the first supporting wheel 41 and the second supporting wheel 42 on the supporting frame 40 on the supporting ring 39 respectively support the outer wall of the second screening cylinder 8 and the downstream side of the stabilizing ring 43, so the positions of the first screening cylinder 7 and the second screening cylinder 8 can be well maintained, so that screening can be carried out smoothly. At the same time, the existence of the stabilizing rod 44 can well prevent the first screening cylinder 7 from deformation, etc.

[0104] It should also be understood that the fixed cover 1, powder receiving cover 2, medium material receiving cover 9, large material receiving cover 13, return material conveying mechanism 15 (which is a conventional conveying mechanism such as a scraper conveyor or a conveyor belt), finished product discharge hopper 16, external delivery conveying mechanism 17 (which is a conventional conveying mechanism such as a scraper conveyor or a conveyor belt), upper end plate 28, etc. in the present application are not in a suspended state, that is, they all have their own corresponding brackets (the figure is only for illustration and does not represent the actual structure. For example, the length of the return material conveying mechanism 15 is longer in actual production).

[0105] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A particle powder regulating device in the production of monoammonium phosphate, characterized in that: include: A fixed cover (1), the fixed cover (1) is inclined, and the longitudinal section of each part of the fixed cover (1) is an arc shape with an opening facing upward, and a powder discharge port is provided at the bottom of the fixed cover (1); A powder receiving cover (2), the powder receiving cover (2) is in the shape of a trumpet with its opening facing upward, the top of the powder receiving cover (2) is connected to the periphery of the powder discharge port, and the bottom is connected to a powder conducting pipe (3); A powder regulating cover (4), wherein the top of the powder regulating cover (4) is connected to the bottom of the powder conducting pipe (3), a first powder discharging pipe (5) is vertically connected to the bottom, and a second powder discharging pipe (6) is connected to the side; a first regulating mechanism, the first regulating mechanism being located in the powder regulating cover (4) and being used for guiding the material in the powder conducting pipe (3) into the first powder discharging pipe (5) or the second powder discharging pipe (6); a first screening cylinder (7) and a second screening cylinder (8) located outside the first screening cylinder (7); the first screening cylinder (7), the second screening cylinder (8) and the fixed cover (1) are all coaxial; the second screening cylinder (8) is separated from the fixed cover (1) and the first screening cylinder (7); a plurality of screening holes are provided on the first screening cylinder (7) and the second screening cylinder (8); the diameter of the screening holes on the first screening cylinder (7) is larger than the diameter of the screening holes on the second screening cylinder (8); the downstream end of the second screening cylinder (8) is located outside the fixed cover (1); and the downstream end of the first screening cylinder (7) is located outside the second screening cylinder (8); A driving mechanism, the driving mechanism is used to drive the first screening drum (7) and the second screening drum (8) to rotate; A middle material receiving cover (9), wherein the middle material receiving cover (9) is in the shape of a cover with an opening facing upward; A middle material regulating cover (10), wherein the top of the middle material regulating cover (10) is connected to the bottom of the middle material receiving cover (9), the bottom is connected to a first middle material discharging pipe (11), and the side is connected to a second middle material discharging pipe (12); a second regulating mechanism, the second regulating mechanism being located in the middle material regulating cover (10) and being used for guiding the material in the middle material regulating cover (10) into the first middle material discharging pipe (11) or the second middle material discharging pipe (12); A large material receiving cover (13), the bottom of which is connected to a large material discharging pipe (14); A return material conveying mechanism (15), a finished product discharge hopper (16) and an external delivery conveying mechanism (17) are sequentially arranged, the bottom of the first powder material discharge pipe (5) is located above the return material conveying mechanism (15), the finished product discharge hopper (16) is through-connected from top to bottom, the bottom of the second powder material discharge pipe (6) and the bottom of the first medium material discharge pipe (11) are both located above the finished product discharge hopper (16), and the bottom of the second medium material discharge pipe (12) and the bottom of the large material discharge pipe (14) are both located above the external delivery conveying mechanism (17).

2. The particle powder regulating device in the production of monoammonium phosphate according to claim 1, characterized in that: The powder regulating cover (4) is in the shape of a hollow cylinder. The first regulating mechanism comprises a first regulating column (18) coaxially arranged in the powder regulating cover (4). A plurality of first regulating plates (19) are arranged in a divergent manner on the outer wall of the first regulating column (18). A set gap or movable fit is formed between the free end and both sides of the first regulating plate (19) and the inner wall of the powder regulating cover (4). When the top of the first regulating column (18) rotates along the X direction, the first regulating column (18) and the first regulating plate (19) deliver the material in the powder conducting tube (3) into the second powder discharging tube (6). When the top of the first regulating column (18) rotates along the -X direction, the first regulating column (18) and the first regulating plate (19) deliver the material in the powder conducting tube (3) into the first powder discharging tube (5).

3. The particle powder regulating device in the production of monoammonium phosphate according to claim 2, characterized in that: The outer walls at both ends of the first adjustment column (18) are provided with a first integral disk (20), the ends of all the first adjustment pieces (19) are fixedly connected to the first integral disk (20), a groove matching the first integral disk (20) is provided on the powder adjustment cover (4), and a set gap is provided between the free end of the first adjustment piece (19) and the inner wall of the powder adjustment cover (4).

4. The particle powder regulating device in the production of monoammonium phosphate according to claim 2, characterized in that: The middle material adjustment cover (10) is in the shape of a hollow cylinder. The second adjustment mechanism comprises a second adjustment column (21) coaxially arranged in the powder material adjustment cover (4). A plurality of second adjustment sheets (22) are divergently arranged on the outer wall of the second adjustment column (21). A set gap or movable fit is formed between the free end and both sides of the second adjustment sheet (22) and the inner wall of the middle material adjustment cover (10). When the top of the second adjustment column (21) rotates along the X direction, the second adjustment column (21) and the second adjustment sheet (22) deliver the material in the middle material receiving cover (9) into the second middle material discharge pipe (12). When the top of the second adjustment column (21) rotates along the -X direction, the second adjustment column (21) and the second adjustment sheet (22) deliver the material in the middle material receiving cover (9) into the second powder material discharge pipe (6).

5. The particle powder regulating device in the production of monoammonium phosphate according to claim 4, characterized in that: The outer walls at both ends of the second adjustment column (21) are provided with a second integrated disk (23), the ends of all the second adjustment pieces (22) are fixedly connected to the second integrated disk (23), the middle material adjustment cover (10) is provided with a groove matching the second integrated disk (23), and a set gap is provided between the free end of the second adjustment piece (22) and the inner wall of the powder material adjustment cover (4).

6. The particle powder regulating device in the production of monoammonium phosphate according to claim 4 or 5, characterized in that: An integral ring (24) is provided between the tops of the first screening cylinder (7) and the second screening cylinder (8), and the inner side and the outer side of the integral ring (24) are respectively fixedly connected to the upstream ends of the first screening cylinder (7) and the second screening cylinder (8).

7. The particle powder regulating device in the production of monoammonium phosphate according to claim 6, characterized in that: A passive ring (25) is arranged outside the integral ring (24), an internal tooth body (26) is arranged inside the passive ring (25), and an external tooth body (27) is arranged outside the passive ring (25); an upper end plate (28) with a fixed position is arranged at the upstream end of the fixed cover (1), a feed pipe (29a) is opened through the middle of the upper end plate (28), a trumpet-shaped feed hopper (29b) with an opening upward is arranged at the outer end of the feed pipe (29a), and the inner end of the feed pipe (29a) is connected to the first screening cylinder (7). The inner cavities are communicated with each other, a driving gear (30) and a plurality of supporting gears (31) are rotatably arranged on the inner wall of the upper end plate (28), all the supporting gears (31) are meshed with the internal gear body (26), the driving gear (30) is meshed with the external gear body (27), a transmission column (32) is coaxially arranged on the outer side of the driving gear (30) and is rotatably connected to the upper end plate (28) through the transmission column (32), and a rotating driven wheel (33) is arranged at the outer end of the transmission column (32); A power frame (34) is provided at the bottom of the fixed cover (1), a power motor (35) is provided on the power frame (34), a power rod (36) is provided on the output shaft of the power motor (35), a rotating driving wheel (37) is provided on the power rod (36), and a rotating transmission member (38) is provided between the rotating driving wheel (37) and the rotating driven wheel (33); An annular support ring (39) is also provided on the inner wall of the downstream end of the fixed cover (1), and a plurality of U-shaped support frames (40) are evenly distributed on the support ring (39) in a circumferential shape, and a first support wheel (41) and a second support wheel (42) are rotatably provided on each of the support frames (40). An annular stabilizing ring (43) is provided on the outer wall of the second screening cylinder (8), and all the first support wheels (41) are movably in contact with the outer wall of the second screening cylinder (8), and all the second support wheels (42) are movably in contact with the downstream side of the stabilizing ring (43).

8. The particle powder regulating device in the production of monoammonium phosphate according to claim 7, characterized in that: A plurality of stabilizing rods (44) are arranged at intervals between the inner wall of the downstream end of the second screening cylinder (8) and the outer wall of the first screening cylinder (7).

9. The particle powder regulating device in the production of monoammonium phosphate according to claim 7, characterized in that: A first linkage column (45) is coaxially arranged on the first adjusting column (18), the first linkage column (45) movably passes through the powder receiving cover (2), and a first linkage disk (46) and a second linkage disk (47) are arranged on the outer wall of the first linkage column (45); a second linkage column (48) is coaxially arranged on the second adjusting column (21), the second linkage column (48) movably passes through the medium material receiving cover (9), and a third linkage disk (49) is arranged on the second adjusting column (21); The power rod (36) is also provided with a material unloading driving wheel (50), and the bottom of the power frame (34) is also rotatably provided with a transmission rod (51) and an adjustment rod (52), one end of the transmission rod (51) is provided with a material unloading passive wheel (53), and the other end is provided with an active bevel gear (54), and a material unloading transmission member (55) is movably sleeved on the outer wall of the material unloading passive wheel (53) and the material unloading driving wheel (50); The adjusting rod (52) is provided with a first passive bevel tooth (56) and a second passive bevel tooth (57), the first passive bevel tooth (56) and the second passive bevel tooth (57) are located on both sides of the active bevel tooth (54), and the active bevel tooth (54) is meshed with the first passive bevel tooth (56) or the second passive bevel tooth (57); The adjusting rod (52) comprises a first smooth portion (52a), a rectangular portion (52b) and a second smooth portion (52c) which are connected in sequence. A support tube (58) is horizontally arranged on the outer side of the power frame (34). The first smooth portion (52a) is rotatable and movably connected to the power frame (34). The second smooth portion (52c) is rotatable and movably connected to the power frame (34) and the support tube (58). The first passive bevel gear (56) and the second passive bevel gear (57) are both located on the first smooth portion (52a). A driving cylinder (59) or an electric push rod for driving the first smooth portion (52a) to move is arranged on the power frame (34). The driving cylinder (59) or the electric push rod is used to drive the first smooth portion (52a) to move along the length direction of the first smooth portion (52a). The first smooth portion (52a) is rotatably connected to the output shaft of the driving cylinder (59) or the electric push rod. The longitudinal section of the rectangular portion (52b) is rectangular, and the two end edges of the rectangular portion (52b) are respectively located on the inner sides of the edges of the first smooth portion (52a) and the second smooth portion (52c). A transmission wheel (60) is rotatably arranged on the power frame (34), and a hole is opened in the middle of the transmission wheel (60) for movably cooperating with the rectangular portion (52b). A first transmission belt (61) is arranged between the outer wall of the transmission wheel (60) and the outer wall of the first linkage disk (46), and a second transmission belt (62) is arranged between the outside of the second linkage disk (47) and the outer wall of the third linkage disk (49).

10. A process for regulating using the particle powder regulating device in monoammonium phosphate production according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, adding monoammonium phosphate material to the upstream end of the first screening cylinder (7), and the driving mechanism drives the first screening cylinder (7) and the second screening cylinder (8) to rotate; S2, materials with a particle size smaller than the diameter of the sieve holes on the first sieving cylinder (7) enter the second sieving cylinder (8) through the first sieving cylinder (7), materials with a particle size smaller than the diameter of the sieve holes on the second sieving cylinder (8) pass through the second sieving cylinder (8) through the powder material outlet and fall into the powder material receiving cover (2), materials in the second sieving cylinder (8) fall into the medium material receiving cover (9), and materials in the first sieving cylinder (7) fall into the large material receiving cover (13); S3, depending on whether the desired finished product is granular or powdered material, select one of the following: S3-1, if granular monoammonium phosphate is to be produced, the first regulating mechanism guides the material in the powder receiving cover (2) and the powder conducting pipe (3) into the first powder discharge pipe (5), and then the material falls onto the return material conveying mechanism (15) and is sent back to the granulator; the second regulating mechanism guides the material in the medium material receiving cover (9) into the first medium material discharge pipe (11), and then the material falls into the finished product discharge hopper (16), and then is guided into a ton bag or a finished product warehouse through the finished product discharge hopper (16); the material in the large material discharge pipe (14) falls onto the external delivery conveying mechanism (17) and is sent out to the dissolving tank for dissolution; S3-2, if powdered monoammonium phosphate is to be produced, the first regulating mechanism guides the materials in the powder receiving cover (2) and the powder conducting pipe (3) into the second powder discharge pipe (6), and then the materials fall into the finished product discharge hopper (16), and then are guided into the ton bag or the finished product warehouse through the finished product discharge hopper (16); the second regulating mechanism guides the materials in the medium material receiving cover (9) into the second medium material discharge pipe (12), and then the materials fall onto the external delivery conveying mechanism (17), and the materials in the large material discharge pipe (14) fall onto the external delivery conveying mechanism (17), and the external delivery conveying mechanism (17) delivers all the materials to the dissolution tank for dissolution.

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