Eutectic slurry preparation device

Abstract

The invention discloses a co-melting slurry preparation device, and relates to the technical field of compound fertilizer production, the co-melting slurry preparation device comprises a first-stage co-melting tank with a hollow inner cavity, and the top of the first-stage co-melting tank is integrally provided with a first feeding pipe and a second feeding pipe which are communicated with the inner cavity of the first-stage co-melting tank and used for feeding; a first discharging pipe which communicates with an inner cavity of the first-stage eutectic melting tank and is used for discharging eutectic melting slurry is integrally arranged on the lower portion of the side wall of the first-stage eutectic melting tank, and a first stirring assembly for stirring the slurry is arranged in the first-stage eutectic melting tank. The possibility that the suspended powder dough cannot be completely melted is reduced, the melting efficiency of the co-melted slurry is further improved, the co-melted slurry which is fully and uniformly mixed is obtained, and the quality of finished product particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of compound fertilizer production, in particular to a eutectic slurry preparation device. Background Art

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrients. Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops.

[0003] At present, the main processes for producing compound fertilizers at home and abroad are: drum spray granulation and drum ammonia granulation based on the reaction of extracted phosphoric acid and sulfuric acid with synthetic ammonia. In recent years, the compound fertilizer market has higher and higher requirements for product quality, and the supply of raw materials has become worse and worse (mainly due to the decline in the agglomeration of MAP). As a result, the products of steam drum agglomeration process are gradually not adapted to the current compound fertilizer market demand. In order to ensure the healthy development of the enterprise, it is urgently necessary to upgrade the old process.

[0004] In order to better meet the needs of high-concentration production, we have introduced and developed eutectic slurry (towerless) spray granulation technology, which effectively combines high-tower melt granulation technology and solid agglomeration method, improves the granulation rate of drum granulation, improves quality, and achieves the goal of reducing costs and increasing efficiency.

[0005] In the eutectic slurry spraying granulation technology, phosphate ammonium, urea and other raw materials involved in slurry making need to be metered and sent into the eutectic tank, mixed and melted in the tank, and then pumped into the slurry spray gun. The slurry spray gun atomizes the slurry into fine droplets and sprays it onto the granulation bed. The fine atomized droplets evenly agglomerate the raw materials and return materials into granules.

[0006] In this process, if the pulping process is not ideal, it is easy to produce powder clumps that are not fully mixed. Large powder clumps will cause the nozzle of the spray gun to be blocked. Although small powder clumps can be sprayed out of the nozzle with the melt, they cannot form a homogeneous melt with the melt, so they cannot shrink into a dense sphere during the landing process, affecting the quality of the finished particles. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides a eutectic slurry preparation device, which solves the problem that the prior slurry making device cannot evenly melt the material, easily produces powder clumps that are not fully mixed, and large powder clumps will cause the spray gun nozzle to be blocked. Although small powder clumps can be sprayed out of the nozzle with the melt, they cannot form a homogeneous melt with the melt and therefore cannot shrink into a dense sphere during the falling process, affecting the quality of the finished particles.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a eutectic slurry preparation device, comprising a first-level eutectic tank with a hollow inner cavity, the top of the first-level eutectic tank is integrated with a first feeding pipe and a second feeding pipe that are connected to the inner cavity of the first-level eutectic tank and are used for feeding, the lower part of the side wall of the first-level eutectic tank is integrated with a first discharge pipe that is connected to the inner cavity of the first-level eutectic tank and is used for discharging the eutectic slurry, the first-level eutectic tank is provided with a first stirring component for stirring the slurry, the inner cavity of the first-level eutectic tank is provided with a rocker arm, one end of the rocker arm is fixed with a beater board that contacts with a suspended powder mass, and the first-level eutectic tank is provided with a control component for controlling the movement of the beater board to knock the suspended powder mass.

[0011] Through the above technical scheme, the tail washing liquid and other raw materials involved in pulping enter the inner cavity of the first eutectic tank through the first feed pipe and the second feed pipe, and the tail washing liquid and other raw materials involved in pulping in the inner cavity of the first eutectic tank are stirred and mixed through the first stirring component, so as to improve the mixed melting efficiency of the pulping raw materials and reduce the possibility of agglomeration during the mixed melting of the pulping raw materials. The control component provides power to drive the beater to move and knock on the suspended powder agglomerates, thereby reducing the possibility that the suspended powder agglomerates cannot be completely melted, further improving the melting efficiency of the eutectic slurry, so as to obtain a fully mixed and uniform eutectic slurry and improve the quality of the finished particles.

[0012] Preferably, the first stirring component includes a stirring shaft arranged in the middle position of the inner cavity of the first-level eutectic tank, and a plurality of cross bars are radially fixed to the circumferential outer wall of the stirring shaft, and a scraper close to the inner cavity wall of the first-level eutectic tank is fixed at one end of the cross bars away from the stirring shaft, and a stirring blade located between the scraper and the stirring shaft is also fixed on each of the cross bars, and a motor for driving the stirring shaft to rotate is fixed on the top of the first-level eutectic tank, and the first stirring component, the second stirring component and the third stirring component have the same structure.

[0013] Through the above technical solution, the motor provides power to drive the stirring shaft coaxially fixed with its output shaft to rotate. The rotation of the stirring shaft will drive the cross bar, stirring blades and scrapers of the integrated structure with the stirring shaft to rotate, stirring the slurry raw materials in the primary eutectic tank while preventing the slurry from agglomerating and adhering to the inner wall of the primary eutectic tank, thereby improving the uniformity of slurry mixing.

[0014] Preferably, a power box with a hollow inner cavity is fixed to the top of the inner cavity of the primary eutectic tank, a bracket is fixed to the top of the inner cavity of the power box, the stirring shaft passes through the power box and the bracket and is rotatably connected with the power box and the bracket, a movable groove is opened on the power box, one end of the rocker arm away from the paddle board is inserted into the power box, and the control component is located in the inner cavity of the power box.

[0015] Through the above technical solution, by setting up a power box, the control component and the swing rod are supported while preparing the eutectic slurry in the first-level eutectic tank, so as to achieve the work of knocking the suspended powder mass to improve the melting efficiency of the eutectic slurry.

[0016] Preferably, the control component includes an ear seat arranged in the inner cavity of the power box and fixed to the top of the inner cavity groove of the power box, the ear seat is provided with a connecting block, both ends of the connecting block are integrated with short shafts arranged relatively, the connecting block and the ear seat are rotatably connected through the short shaft, the part of the swing arm entering the inner cavity of the power box passes through the connecting block and is rotatably connected to the connecting block through a bearing, the end of the swing arm passing through the connecting block is coaxially fixed with a limiting ball, a transmission shaft located next to the limiting ball is fixed to the bottom of the inner cavity groove of the power box, a limiting turntable coaxially fixed with the transmission shaft is nested on the transmission shaft, the limiting turntable is located above the limiting ball, an arc plate is integrated with the bottom of the limiting turntable, both sides of the arc plate are inclined and smoothly transitioned with the bottom of the limiting turntable, and a power component for controlling the rotation of the limiting turntable so that the arc plate contacts the limiting ball is provided in the power box.

[0017] Through the above technical scheme, power is provided by the power component to drive the limiting turntable and the arc plate of the integrated structure to rotate. When the arc plate rotates until it contacts the limiting ball, the limiting ball is compressed, driving the pendulum and the paddle plate of the integrated structure with the limiting ball to rotate without contacting the liquid surface. When the arc plate rotates until it does not contact the limiting ball, the limiting ball is not compressed, the pendulum and the paddle plate rotate and contact the liquid surface, thereby beating the suspended powder on the liquid surface.

[0018] Preferably, the power assembly includes an A synchronous wheel nested outside the transmission shaft and coaxially fixed with the transmission shaft, the part of the stirring rod entering the inner cavity of the power box is nested with a B synchronous wheel coaxially fixed with the stirring shaft, the bracket is rotatably connected with a C synchronous wheel that plays a tensioning role, the outer sleeves of the A synchronous wheel, B synchronous wheel and C synchronous wheel are provided with synchronous belts that cooperate with the A synchronous wheel, B synchronous wheel and C synchronous wheel, and the inner cavity of the power box is provided with a limit assembly for limiting the rocker arm.

[0019] Through the above technical solution, the A synchronous wheel, the transmission shaft and the limit turntable are an integrated structure. The stirring shaft rotates to provide power, and the power is transmitted through the B synchronous wheel, the belt and the A synchronous wheel to drive the limit turntable to rotate, which saves costs. When the arc plate rotates to no longer contact the limit ball, the limit assembly is set to control the rotation of the pendulum and the paddle plate to beat and knock the suspended powder mass, and it will not shake in the rotating eutectic slurry.

[0020] Preferably, the limiting assembly includes a support fixed to the bottom of the inner cavity groove of the power box, a short connecting rod is fixed on the support, the short shaft close to the short connecting rod passes through the ear seat and is rotatably connected to the ear seat, a U-shaped rod is fixed to one end of the short shaft passing through the ear seat, a sleeve block is movably connected to the U-shaped rod, and the sleeve block is fixedly connected to the short connecting rod by a spring.

[0021] Through the above technical solution, the short connecting rod and the sleeve block are connected by a spring, so that the rotation of the short shaft is limited, thereby limiting the connection block of the integrated structure with the short shaft.

[0022] Preferably, a flipping assembly for controlling the flipping of the paddle board is provided in the power box.

[0023] Through the above technical solution, by setting up a flipping component, the beater board is easily flipped, so that the clean part of the beater board is in contact with the dough.

[0024] Preferably, the flip assembly includes a follower turntable nested outside the transmission shaft and coaxially fixed with the transmission shaft, the follower turntable is rotatably connected to the bottom of the inner groove of the power box, a plurality of evenly arranged gear teeth are integrated on the follower turntable, and a follower gear located between the limiting ball and the connecting block is coaxially fixed on the rocker arm, and the follower gear is meshed with the gear teeth.

[0025] Through the above technical solution, when the arc plate rotates and moves to contact the limiting ball, the swing arm is pressed downward, and after the swing arm moves downward, the follower gear will contact the gear teeth, and the follower gear will mesh with the gear teeth, which will drive the swing arm and the paddle board to flip over.

[0026] Preferably, two hoppers A and B for storing phosphate ammonium and urea respectively are provided on the side of the primary eutectic tank, a bucket elevator is provided between the hoppers A and B, and screw conveyors A and B for transporting the phosphate ammonium and urea in the hoppers A and B into the bucket elevator are provided below the hoppers A and B, the discharge port of the A hopper is connected with the feed port of the A screw conveyor, the discharge port of the B hopper is connected with the feed port of the B screw conveyor, the discharge ports of the A screw conveyor and the B screw conveyor are both connected with the feed port of the bucket elevator, the discharge port of the bucket elevator is connected with the second feed pipe through a feeding pipe, and a deceleration component for slowing down the feeding is provided on the feeding pipe.

[0027] Through the above technical scheme, the ammonium phosphate and urea in the A hopper and the B hopper are fed into the bucket elevator through the A screw conveyor and the B screw conveyor, and the bucket elevator feeds the ammonium phosphate and urea into the primary eutectic tank through the feeding pipe to realize feeding.

[0028] Preferably, the deceleration assembly includes a support block fixed to the outer wall of the feed tube, guide rods are fixed on the left and right sides of the support block, and sliders are sleeved outside the two guide rods and are slidably connected to the guide rods, one of the sliders is fixed with a first baffle with an L-shaped cross-section, and the other slider is fixed with a second baffle with an L-shaped cross-section, and the left and right sides of the feed tube are respectively provided with a first slot and a second slot adapted to the first baffle and the second baffle, and the two sliders are fixed by a connecting plate, and the feed tube is provided with an electric push rod for driving the slider to move.

[0029] Through the above technical solution, the electric push rod provides power to drive the slider fixedly connected to the extended end of the electric push rod to move. The movement of one slider will drive the movement of the other slider, thereby driving the movement of the first baffle and the second baffle to control the feed rate of phosphate ammonium and urea.

[0030] (III) Beneficial effects

[0031] The present invention provides a eutectic slurry preparation device having the following beneficial effects:

[0032] (1) In the eutectic slurry preparation device, the tail wash liquid and other raw materials involved in slurrying enter the first-level eutectic tank cavity through the first feeding pipe and the second feeding pipe, and the tail wash liquid and other raw materials involved in slurrying in the first-level eutectic tank cavity are stirred and mixed by the first stirring component to improve the mixing and melting efficiency of the slurrying raw materials and reduce the possibility of agglomeration during the mixing and melting of the slurrying raw materials. The control component provides power to drive the slurry beating plate to knock the suspended powder agglomerates to reduce the possibility that the suspended powder agglomerates cannot be completely melted, further improve the melting efficiency of the eutectic slurry, so as to obtain a fully mixed and uniform eutectic slurry and improve the quality of the finished particles.

[0033] (2) The eutectic slurry preparation device is powered by a motor to drive a stirring shaft coaxially fixed with its output shaft to rotate. The rotation of the stirring shaft drives the cross bar, stirring blades and scrapers of the integrated structure with the stirring shaft to rotate, stirring the slurry-making raw materials in the primary eutectic tank while preventing the slurry from agglomerating and adhering to the inner wall of the primary eutectic tank, thereby improving the uniformity of slurry mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the feeding pipe used to embody the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the A hopper used to embody the present invention;

[0037] Figure 4It is a schematic diagram of a partial cross-sectional structure of a primary eutectic tank of the present invention;

[0038] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0039] Figure 6 This is a schematic diagram of the structure of a paddle board used to embody the present invention;

[0040] Figure 7 This is a schematic diagram of the swing rod structure used in the present invention;

[0041] Figure 8 This is a schematic diagram of a spring structure used to embody the present invention;

[0042] Fig. 9 This is a schematic diagram of the structure of the second baffle used to embody the present invention;

[0043] Fig.10 It is a schematic diagram of the partial cross-sectional structure of the feeding tube of the present invention.

[0044] In the figure: 1, preheating tank; 2, metering pump; 3, primary eutectic tank; 4, first slurry pump; 5, secondary eutectic tank; 6, second slurry pump; 7, tertiary eutectic tank; 8, third slurry pump; 9, slurry spray gun; 10, first feed pipe; 11, second feed pipe; 12, first discharge pipe; 13, first stirring assembly; 1301, stirring shaft; 1302, cross bar; 1303, scraper; 1304, stirring blade; 1305, motor; 14, swing rod; 15, paddle board; 16, power box; 17, movable tank; 18, bracket; 19, control assembly; 1901, ear seat; 1902, connecting block; 1903, short shaft; 1904, limit ball; 1905, transmission shaft; 1906 , limit turntable; 1907, arc plate; 1908, A synchronous wheel; 1909, B synchronous wheel; 1910, C synchronous wheel; 1911, synchronous belt; 1912, short connecting rod; 1913, U-shaped rod; 1914, sleeve block; 1915, spring; 1916, follow-up turntable; 1917, gear; 20, A hopper; 21, B hopper; 22, bucket elevator; 23, A screw conveyor; 24, B screw conveyor; 25, feeding pipe; 26, speed reduction assembly; 2601, support block; 2602, guide rod; 2603, slider; 2604, first baffle; 2605, second baffle; 2606, first slot; 2607, second slot; 2608, connecting plate. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] like Figure 1-10 As shown, the present invention provides a technical solution: a eutectic slurry preparation device, comprising a preheating tank 1, a metering pump 2, a primary eutectic tank 3, a first slurry pump 4, a secondary eutectic tank 5, a second slurry pump 6, a tertiary eutectic tank 7, a third slurry pump 8, and a slurry spray gun 9, wherein the discharge port of the preheating tank 1 is connected to the feed port of the metering pump 2 through a pipeline, the discharge port of the metering pump 2 is connected to the feed port of the primary eutectic tank 3 through a pipeline, and the discharge port of the primary eutectic tank 3 is connected to the feed port of the first eutectic tank 3. The feed port of the slurry pump 4 is connected through a pipeline, the discharge port of the first slurry pump 4 is connected to the feed port of the secondary eutectic tank 5 through a pipeline, the discharge port of the secondary eutectic tank 5 is connected to the feed port of the second slurry pump 6 through a pipeline, the discharge port of the second slurry pump 6 is connected to the feed port of the tertiary eutectic tank 7 through a pipeline, the discharge port of the tertiary eutectic tank 7 is connected to the feed port of the third slurry pump 8 through a pipeline, and the discharge port of the third slurry pump 8 is connected to the feed port of the slurry spray gun 9 through a pipeline.

[0047] like Figure 1 and Figure 2 The preheating tank 1 is used to contain the tail washing liquid and heat the tail washing liquid. The metering pump 2 provides power so that the tail washing liquid heated in the preheating tank 1 enters the primary eutectic tank 3. The pulping raw material enters the primary eutectic tank 3 and is mixed and melted with the tail washing liquid preheated in the preheating tank 1 in the tank to prepare the primary eutectic slurry. After that, the first slurry pump 4 provides power to input the primary eutectic slurry in the primary eutectic tank 3 into the secondary eutectic tank 5. The primary eutectic slurry is evenly stirred in the secondary eutectic tank 5. Then, the second slurry pump 6 provides power to pump the secondary eutectic tank 5. The eutectic slurry in 5 is sent into the three-stage eutectic tank 7, and the eutectic slurry entering the three-stage eutectic tank 7 is stirred again. The eutectic slurry is mixed and melted completely. The third slurry pump 8 provides power, so that the eutectic slurry that is mixed and melted completely in the three-stage eutectic tank 7 enters the slurry spray gun 9 and is sprayed out by the slurry spray gun 9. The slurry spray gun 9 atomizes the slurry into fine droplets and sprays it onto the granulation bed. The fine atomized droplets uniformly agglomerate the raw materials and the return materials into granules. At the same time, the granulator is also equipped with a steam distributor to introduce steam into the granulator to adjust the granulation.

[0048] like Figure 1 and Figure 2Through the cooperation of the primary eutectic tank 3, the first slurry pump 4, the secondary eutectic tank 5, the second slurry pump 6, the tertiary eutectic tank 7, and the third slurry pump 8, the tail wash liquid and the pulping raw materials are mixed evenly, reducing the possibility of powder agglomeration due to insufficient mixing of the eutectic slurry, thereby improving the quality of the finished particles.

[0049] like Figure 2 and Figure 4 and Figure 5 The top of the hollow primary eutectic tank 3 is integrated with a first feed pipe 10 and a second feed pipe 11 which are connected to the inner cavity of the primary eutectic tank 3 and are used for feeding. The first feed pipe 10 is connected to the preheating tank 1 to supply tail washing liquid into the primary eutectic tank 3. The second feed pipe 11 supplies ammonium phosphate and urea into the primary eutectic tank 3. The lower part of the side wall of the primary eutectic tank 3 is integrated with a first discharge pipe 12 which is connected to the inner cavity of the primary eutectic tank 3 and is used for discharging the eutectic slurry. The first discharge pipe 12 is connected to the secondary eutectic tank 5.

[0050] like Figure 2 and Figure 4 and Figure 5 The first eutectic tank 3, the second eutectic tank 5 and the third eutectic tank 7 are respectively provided with a first stirring component 13, a second stirring component and a third stirring component for stirring the slurry entering their inner cavities.

[0051] like Figure 2 and Figure 4 and Figure 5 The first stirring component 13 includes a stirring shaft 1301 arranged in the middle position of the inner cavity of the first-level eutectic tank 3, and a plurality of cross bars 1302 are radially fixed to the circumferential outer wall of the stirring shaft 1301. A scraper 1303 close to the inner cavity wall of the first-level eutectic tank 3 is fixed at one end of the plurality of cross bars 1302 away from the stirring shaft 1301, and each cross bar 1302 is also fixed with a stirring blade 1304 located between the scraper 1303 and the stirring shaft 1301. A motor 1305 for driving the stirring shaft 1301 to rotate is fixed on the top of the first-level eutectic tank 3. The first stirring component 13, the second stirring component and the third stirring component have the same structure.

[0052] like Figure 2 and Figure 4 and Figure 5 The motor 1305 provides power to drive the stirring shaft 1301 coaxially fixed with its output shaft to rotate. The rotation of the stirring shaft 1301 will drive the cross bar 1302, stirring blades 1304 and scrapers 1303 of the integrated structure with the stirring shaft 1301 to rotate, stirring the pulping raw materials in the primary eutectic tank 3 while preventing the slurry from agglomerating and adhering to the inner wall of the primary eutectic tank 3, thereby improving the uniformity of the slurry mixing.

[0053] like Figure 5 and Figure 6 and Figure 7 and Figure 8 A hollow power box 16 is fixed to the top of the inner cavity of the primary eutectic tank 3. The power box 16 is located above the liquid surface to reduce the possibility of materials entering the inner cavity of the power box 16 during stirring. A bracket 18 is fixed to the inner cavity of the power box 16. The stirring shaft 1301 passes through the power box 16 and the bracket 18 and is rotatably connected to the power box 16 and the bracket 18 through a bearing. An active groove 17 connecting the inner cavity of the power box 16 and the inner cavity of the primary eutectic tank 3 is provided on the power box 16. A swing rod 14 is provided in the inner cavity of the power box 16. One end of the swing rod 14 passes through the power box 16 through the active groove 17. The part of the swing rod 14 passing through the power box 16 is fixed with a paddle 15 in contact with the slurry liquid surface and the powder mass suspended on the liquid surface. The first feeding pipe 10 and the second feeding pipe 11 They are both located obliquely above the paddle board 15 and the power box 16, without affecting the movement of the paddle board 15 and being blocked by the power box 16. The inner cavity of the power box 16 is provided with a control component 19 for controlling the movement of the paddle board 15 to strike the suspended powder mass. The control component 19 provides power to drive the paddle board 15 to move and strike the suspended powder mass, thereby reducing the possibility that the suspended powder mass cannot be completely melted, further improving the melting efficiency of the eutectic slurry, so as to obtain a fully mixed and uniform eutectic slurry, and improving the quality of the finished particles. The powder will not enter the inner cavity of the power box 16 through the gap between the power box 16 and the stirring shaft 1301. A brush is fixed on the movable groove 17, which will not affect the movement of the swing arm 14 and further reduce the possibility of the material entering the inside of the power box 16 through the movable groove 17.

[0054] like Figure 5 and Figure 6 and Figure 7 and Figure 8 The control assembly 19 includes an ear seat 1901 which is arranged in the inner cavity of the power box 16 and fixed to the bracket 18. A connecting block 1902 is arranged on the ear seat 1901. Both ends of the connecting block 1902 are integrated with short shafts 1903 arranged relatively. The connecting block 1902 is rotatably connected to the ear seat 1901 through the short shaft 1903. The part of the swing rod 14 entering the inner cavity of the power box 16 passes through the connecting block 1902 and is rotatably connected to the connecting block 1902 through a bearing. One end of the swing rod 14 passing through the connecting block 1902 is coaxially fixed with a limiting ball 1904. The bottom of the inner cavity groove of the power box 16 is fixed with a limiting ball 1904. The transmission shaft 1905 on the side, the top of the transmission shaft 1905 is fixed to the bracket 18, and a limit turntable 1906 coaxially fixed with the transmission shaft 1905 is nested on the transmission shaft 1905, the limit turntable 1906 is located above the limit ball 1904, and an arc plate 1907 is integrated at the bottom of the limit turntable 1906. The center of the arc plate 1907 coincides with the center of the transmission shaft 1905, and the two sides of the arc plate 1907 are smoothly inclined with the bottom of the limit turntable 1906. A power component for controlling the rotation of the limit turntable 1906 so that the arc plate 1907 contacts the limit ball 1904 is provided in the power box 16.

[0055] like Figure 5 and Figure 6 and Figure 7 and Figure 8 The power component provides power to drive the integrated structure of the limiting turntable 1906 and the arc plate 1907 to rotate. When the arc plate 1907 rotates to contact the limiting ball 1904, the limiting ball 1904 is compressed, driving the pendulum 14 and the paddle board 15 of the integrated structure with the limiting ball 1904 to rotate without contacting the liquid surface. When the arc plate 1907 rotates to not contact the limiting ball 1904, the limiting ball 1904 is not compressed, the pendulum 14 and the paddle board 15 rotate and contact the liquid surface, thereby beating the suspended powder on the liquid surface.

[0056] like Figure 5 and Figure 6 and Figure 7 and Figure 8 The power assembly includes an A synchronous wheel 1908 nested outside the transmission shaft 1905 and coaxially fixed with the transmission shaft 1905, a B synchronous wheel 1909 coaxially fixed with the stirring shaft 1301 is nested in the part where the stirring rod enters the inner cavity of the power box 16, and a C synchronous wheel 1910 is rotatably connected to the bracket 18 for tensioning. The A synchronous wheel 1908, the B synchronous wheel 1909 and the C synchronous wheel 1910 are provided with a synchronous belt 1911 matched with the A synchronous wheel 1908, the B synchronous wheel 1909 and the C synchronous wheel 1910. The A synchronous wheel 1908, the transmission shaft 1905 and the limit turntable 1906 are an integrated structure. The stirring shaft 1301 rotates to provide power, and the power is transmitted through the B synchronous wheel 1909, the belt, the C synchronous wheel 1910 and the A synchronous wheel 1908 to drive the limit turntable 1906 to rotate, thereby saving costs.

[0057] like Figure 5 and Figure 6 and Figure 7 and Figure 8 A limiting component for limiting the position of the swing arm 14 is provided in the inner cavity of the power box 16, and the limiting component includes a support fixed at the bottom of the inner cavity groove of the power box 16, and a short connecting rod 1912 is fixed on the support, and a short shaft 1903 close to the short connecting rod 1912 passes through the ear seat 1901 and is rotatably connected to the ear seat 1901. A U-shaped rod 1913 is fixed to one end of the short shaft 1903 passing through the ear seat 1901, and a sleeve block 1914 is movably connected to the U-shaped rod 1913. The sleeve block 1914 is connected to the short connecting rod 1912 by a spring 1915, and the short connecting rod 1912 and the sleeve block 1914 are connected by the spring 1915, so as to limit the rotation of the short shaft 1903, thereby limiting the connecting block 1902 with the integrated structure of the short shaft 1903.

[0058] like Figure 5 and Figure 6 and Figure 7 and Figure 8 A flipping assembly for controlling the flipping of the paddle board 15 is provided in the power box 16, and the flipping assembly includes a follower turntable 1916 nested outside the transmission shaft 1905 and coaxially fixed with the transmission shaft 1905, the follower turntable 1916 is rotatably connected to the bottom of the inner cavity groove of the power box 16, and a plurality of evenly arranged gear teeth 1917 are integrated on the follower turntable 1916, and a follower gear located between the limiting ball 1904 and the connecting block 1902 is coaxially fixed on the swing rod 14, and the follower gear and the gear teeth 1917 are meshed with each other. When the arc plate 1907 rotates and moves to contact with the limiting ball 1904, the swing rod 14 is pressed to move downward, and the swing rod 14 will make the follower gear contact with the gear teeth 1917 after moving downward, and the follower gear will mesh with the gear teeth 1917, which will drive the swing rod 14 and the paddle board 15 to flip.

[0059] like Figure 2 and Figure 3 Two hoppers A 20 and B 21 for storing phosphate ammonium and urea respectively are provided on the side of the primary eutectic tank 3, a bucket elevator 22 is provided between the hopper A 20 and the hopper B 21, and a screw conveyor A 23 and a screw conveyor B 24 for transporting the phosphate ammonium and urea in the hopper A 20 and the hopper B 21 into the bucket elevator 22 are provided below the hopper A 20 and the hopper B 21. The discharge port of the hopper A 20 is connected with the feed port of the screw conveyor A 23, the discharge port of the hopper B 21 is connected with the feed port of the screw conveyor B 24, the discharge ports of the screw conveyors A 23 and B 24 are both connected with the feed port of the bucket elevator 22, and the discharge port of the bucket elevator 22 is connected with the second feed pipe 11 through the feeding pipe 25.

[0060] like Figure 2 and Figure 3 The ammonium phosphate and urea in the A hopper 20 and the B hopper 21 are fed into the bucket elevator 22 through the A screw conveyor 23 and the B screw conveyor 24, and the bucket elevator 22 feeds the ammonium phosphate and urea into the primary eutectic tank 3 through the feeding pipe 25 to realize feeding.

[0061] like Fig. 9 and Fig.10The feeding tube 25 is provided with a deceleration assembly 26 for slowing down the feeding, and the deceleration assembly 26 includes a support block 2601 fixed to the outer wall of the feeding tube 25, and guide rods 2602 are fixed on both the left and right sides of the support block 2601. Slide blocks 2603 that are slidably connected to the guide rods 2602 are sleeved on the two guide rods 2602, and a first baffle 2604 with an L-shaped cross section is fixed on one of the slide blocks 2603, and a second baffle 2605 with an L-shaped cross section is fixed on the other slide block 2603. The left and right sides of the feeding tube 25 are respectively provided with first slots 2606 that are adapted to the first baffle 2604 and the second baffle 2605. and the second slot 2607, the first baffle 2604 penetrates into the feeding tube 25 through the first slot 2606 and is slidably connected to the feeding tube 25, the second baffle 2605 penetrates into the feeding tube 25 through the second slot 2607 and is slidably connected to the feeding tube 25, the first slot 2606 is provided with a sealing ring for closing the gap between the first baffle 2604 and the first slot 2606, the second slot 2607 is provided with a sealing ring for closing the gap between the second slot 2607 and the second baffle 2605, the two sliders 2603 are fixed by a connecting plate 2608, and the feeding tube 25 is provided with an electric push rod for driving the slider 2603 to move.

[0062] like Fig. 9 and Fig.10 The electric push rod provides power to drive the slider 2603 fixedly connected to the extended end of the electric push rod to move. The movement of one slider 2603 will drive the movement of the other slider 2603, thereby driving the movement of the first baffle 2604 and the second baffle 2605 to control the feeding speed of phosphate ammonium and urea.

[0063] When in use, the tail wash liquid in the preheating tank 1 enters the primary eutectic tank 3 through the first feeding pipe 10, and the ammonium phosphate and urea in the A hopper 20 and the B hopper 21 are sent to the bucket elevator 22 through the A screw conveyor 23 and the B screw conveyor 24, and the bucket elevator 22 sends the ammonium phosphate and urea into the primary eutectic tank 3 through the feeding pipe 25. The electric push rod is turned on, and the electric push rod provides power to drive the slider 2603 fixed to the extended end of the electric push rod to move on the guide rod 2602. The two sliders 2603 are fixed by the connecting plate 2608. The movement of the two sliders 2603 will drive the first baffle 2604 and the second baffle to slide. When the first baffle When 2604 slides and contacts the wall of the first slot 2606 of the feeding tube 25, the second baffle 2605 does not affect the material in the feeding tube 25, and the material in the feeding tube 25 is stopped by the first baffle 2604. When the first baffle 2604 moves in the opposite direction and does not affect the movement of the material in the feeding tube 25, the second baffle 2605 contacts the wall of the second slot 2607 of the feeding tube 25, and the second baffle 2605 stops the material, and only the material between the first baffle 2604 and the second baffle 2605 enters the primary eutectic tank 3, so as to realize feeding, slow down the speed of the material entering the primary eutectic tank 3, and reduce the possibility that the material cannot be mixed evenly.

[0064] When the tail wash liquid, ammonium phosphate and urea enter the primary eutectic tank 3, the motor 1305 is turned on, and the motor 1305 provides power to drive the stirring shaft 1301 coaxially fixed with its output shaft to rotate. The rotation of the stirring shaft 1301 will drive the cross bar 1302, the stirring blade 1304 and the scraper 1303 of the integrated structure with the stirring shaft 1301 to rotate, stirring the pulping raw materials in the primary eutectic tank 3 while preventing the slurry from agglomerating and adhering to the inner wall of the primary eutectic tank 3, thereby improving the uniformity of the slurry mixing;

[0065] At the same time, the stirring shaft 1301 rotates to provide power, driving the B synchronous wheel 1909 coaxially fixed with the stirring shaft 1301 to rotate, and the power is transmitted through the B synchronous wheel 1909, the belt, the C synchronous wheel 1910 and the A synchronous wheel 1908 to drive the limit turntable 1906 to rotate. The rotation of the limit turntable 1906 will drive the transmission shaft 1905 coaxially fixed with the limit turntable 1906, the follower turntable 1916, and the limit turntable 1906 to rotate;

[0066] The positioning turntable and the arc plate 1907 rotate. When the arc plate 1907 rotates to contact the limiting ball 1904, the limiting ball 1904 is compressed, driving the swing rod 14 and the paddle plate 15 of the integrated structure with the limiting ball 1904 to rotate without contacting the liquid surface. When the arc plate 1907 rotates to not contact the limiting ball 1904, the limiting ball 1904 is not compressed, and the swing rod 14 and the paddle plate 15 rotate and contact the liquid surface to beat the suspended powder mass on the liquid surface.

[0067] At the same time, when the arc plate 1907 rotates and moves to contact the limiting ball 1904, the swing rod 14 is pressed to move downward. After the swing rod 14 moves downward, the follower gear will contact the gear 1917. The follower gear and the gear 1917 are meshed, which will drive the swing rod 14 and the paddle board 15 to flip. When the paddle board 15 is inactive, the suspended powder mass and foam on the liquid surface are piled together. The paddle board 15 flips so that the clean side beats the suspended powder mass and foam to improve the uniformity of the slurry. At the same time, the paddle board 15 rotates so that the side in contact with the powder mass is cleanly in contact with the liquid, thereby improving the beating efficiency.

[0068] Afterwards, the slurry in the first-stage eutectic tank 3 enters the second-stage eutectic tank 5 and the third-stage eutectic tank 7 in turn. The eutectic slurries are mixed and melted completely. The third slurry pump 8 provides power so that the eutectic slurry that is mixed and melted completely in the third-stage eutectic tank 7 enters the slurry spray gun 9 and is sprayed out by the slurry spray gun 9. The slurry spray gun 9 atomizes the slurry into fine droplets and sprays it onto the granulation bed. The fine atomized droplets evenly agglomerate the raw materials and return materials into granules. At the same time, the granulator is also equipped with a steam distributor to introduce steam into the granulator to regulate the granulation.

[0069] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A eutectic slurry preparation device, characterized in that: The invention comprises a primary eutectic tank (3) with a hollow inner cavity, wherein a first feeding pipe (10) and a second feeding pipe (11) which are connected to the inner cavity of the primary eutectic tank (3) and used for feeding are integrated at the top of the primary eutectic tank (3), a first discharge pipe (12) which is connected to the inner cavity of the primary eutectic tank (3) and used for discharging eutectic slurry is integrated at the lower part of the side wall of the primary eutectic tank (3), and a first stirring component (13) for stirring the slurry is provided in the primary eutectic tank (3); The inner cavity of the primary eutectic tank (3) is provided with a swing rod (14), one end of which is fixed with a paddle board (15) in contact with the suspended powder mass, and the primary eutectic tank (3) is provided with a control component (19) for controlling the movement of the paddle board (15) to strike the suspended powder mass.

2. A eutectic slurry preparation device according to claim 1, characterized in that: The first stirring component (13) comprises a stirring shaft (1301) arranged in the middle of the inner cavity of the primary eutectic tank (3); a plurality of cross bars (1302) are radially fixed to the circumferential outer wall of the stirring shaft (1301); a scraper (1303) close to the inner cavity wall of the primary eutectic tank (3) is fixed to one end of the cross bars (1302) away from the stirring shaft (1301); a stirring blade (1304) located between the scraper (1303) and the stirring shaft (1301) is also fixed to each of the cross bars (1302); a motor (1305) for driving the stirring shaft (1301) to rotate is fixed to the top of the primary eutectic tank (3); the first stirring component (13), the second stirring component and the third stirring component have the same structure.

3. A eutectic slurry preparation device according to claim 2, characterized in that: A power box (16) with a hollow inner cavity is fixed to the top of the inner cavity of the primary eutectic tank (3), a bracket (18) is fixed to the top of the inner cavity of the power box (16), the stirring shaft (1301) passes through the power box (16) and the bracket (18) and is rotatably connected to the power box (16) and the bracket (18), a movable groove (17) is provided on the power box (16), one end of the swing rod (14) away from the paddle board (15) penetrates into the power box (16), and the control component (19) is located in the inner cavity of the power box (16).

4. The eutectic slurry preparation device according to claim 3, characterized in that: The control component (19) comprises an ear seat (1901) arranged in the inner cavity of the power box (16) and fixed to the top of the inner cavity groove of the power box (16); a connecting block (1902) is arranged on the ear seat (1901); both ends of the connecting block (1902) are integrated with short shafts (1903) arranged opposite to each other; the connecting block (1902) and the ear seat (1901) are rotatably connected via the short shaft (1903); the part of the swing rod (14) entering the inner cavity of the power box (16) passes through the connecting block (1902) and is rotatably connected to the connecting block (1902) via a bearing; and a limiting ball (1904) is coaxially fixed to one end of the swing rod (14) passing through the connecting block (1902); A transmission shaft (1905) located beside the limiting ball (1904) is fixed at the bottom of the inner cavity groove of the power box (16); a limiting turntable (1906) coaxially fixed with the transmission shaft (1905) is nested on the transmission shaft (1905); the limiting turntable (1906) is located above the limiting ball (1904); an arc plate (1907) is integrated at the bottom of the limiting turntable (1906); both sides of the arc plate (1907) are inclined and smoothly transitioned with the bottom of the limiting turntable (1906); a power component for controlling the rotation of the limiting turntable (1906) so that the arc plate (1907) contacts the limiting ball (1904) is provided in the power box (16).

5. The eutectic slurry preparation device according to claim 1, characterized in that: The power assembly comprises an A synchronous wheel (1908) nested outside the transmission shaft (1905) and coaxially fixed with the transmission shaft (1905); a B synchronous wheel (1909) coaxially fixed with the stirring shaft (1301) is nested in the portion of the stirring rod entering the inner cavity of the power box (16); a C synchronous wheel (1910) for tensioning is rotatably connected to the bracket (18); the A synchronous wheel (1908), the B synchronous wheel (1909) and the C synchronous wheel (1910) are provided with a synchronous belt (1911) matched with the A synchronous wheel (1908), the B synchronous wheel (1909) and the C synchronous wheel (1910); and a limit assembly for limiting the position of the swing arm (14) is provided in the inner cavity of the power box (16).

6. A eutectic slurry preparation device according to claim 5, characterized in that: The limit assembly comprises a support fixed to the bottom of the inner cavity groove of the power box (16), a short connecting rod (1912) is fixed on the support, the short shaft (1903) close to the short connecting rod (1912) passes through the ear seat (1901) and is rotatably connected to the ear seat (1901), a U-shaped rod (1913) is fixed to one end of the short shaft (1903) passing through the ear seat (1901), a sleeve block (1914) is movably connected to the U-shaped rod (1913), and the sleeve block (1914) is fixedly connected to the short connecting rod (1912) via a spring (1915).

7. The eutectic slurry preparation device according to claim 6, characterized in that: A turning assembly for controlling the turning of the paddle board (15) is arranged in the power box (16).

8. The eutectic slurry preparation device according to claim 7, characterized in that: The flip assembly includes a follower turntable (1916) nested outside the transmission shaft (1905) and coaxially fixed to the transmission shaft (1905), the follower turntable (1916) is rotatably connected to the bottom of the inner cavity groove of the power box (16), a plurality of evenly arranged gear teeth (1917) are integrated on the follower turntable (1916), and a follower gear located between the limiting ball (1904) and the connecting block (1902) is coaxially fixed on the swing rod (14), and the follower gear and the gear teeth (1917) are meshed with each other.

9. The eutectic slurry preparation device according to claim 1, characterized in that: Two hoppers A (20) and B (21) for storing ammonium phosphate and urea respectively are arranged on the side of the primary eutectic tank (3); a bucket elevator (22) is arranged between the hoppers A (20) and B (21); and screw conveyors A (23) and B (24) are arranged below the hoppers A (20) and B (21) for transporting ammonium phosphate and urea in the hoppers A (20) and B (21) to the bucket elevator (22). The discharge port of the A screw conveyor (20) is connected to the feed port of the A screw conveyor (23), the discharge port of the B hopper (21) is connected to the feed port of the B screw conveyor (24), the discharge ports of the A screw conveyor (23) and the B screw conveyor (24) are both connected to the feed port of the bucket elevator (22), the discharge port of the bucket elevator (22) is connected to the second feed pipe (11) through a feed pipe (25), and a deceleration component (26) for slowing down the feeding is provided on the feed pipe (25).

10. The eutectic slurry preparation device according to claim 9, characterized in that: The deceleration assembly (26) comprises a support block (2601) fixed to the outer wall of the feeding tube (25), guide rods (2602) are fixed on the left and right sides of the support block (2601), and sliders (2603) are sleeved on the outside of the two guide rods (2602) and are slidably connected to the guide rods (2602), one of the sliders (2603) is fixed with a first baffle (2604) with an L-shaped cross-section, and the other slider (2603) is fixed with a second baffle (2605) with an L-shaped cross-section, and the left and right sides of the feeding tube (25) are respectively provided with a first slot (2606) and a second slot (2607) adapted to the first baffle (2604) and the second baffle (2605), and the two sliders (2603) are fixed by a connecting plate (2608), and the feeding tube (25) is provided with an electric push rod for driving the slider (2603) to move.

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