Plate type water cooling device suitable for granular fertilizer

Abstract

The invention belongs to the technical field of fertilizer manufacturing, and particularly relates to a plate type water cooling device suitable for granular fertilizer, which comprises a shell, a group of heat exchange plates are uniformly distributed in the shell; a group of channels are formed between the shell and the heat exchange plate; the channel is divided into a heat absorption channel and a heat release channel; the outer side of the shell is fixedly connected with a water inlet pipe and a water outlet pipe; the water inlet pipe is communicated with the bottom of each heat absorption channel; and the water outlet pipe is communicated with the top of each heat absorption channel. The cooling water and the fertilizer move reversely, heat of the fertilizer is transferred to the cooling water through the heat exchange plate, the fertilizer is in a tiled state and rolls downwards when moving on the surface of the inclined heat exchange plate, and even if the fertilizer has a certain thickness, the distance between particles with different thicknesses and the heat exchange plate is easy to change in the moving process of the fertilizer; mutual attachment and contact between the fertilizer and the heat exchange plate are facilitated, the flying phenomenon of the fertilizer is reduced, and the efficiency of transferring heat to the heat exchange plate is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fertilizer manufacturing, and specifically relates to a plate-type water-cooled cooling device applicable to granular fertilizers. Background Art

[0002] With the continuous development of agricultural production, the use of fertilizers has become an important means to improve the yield and quality of crops. Granular fertilizers are widely used in the agricultural field and are mainly favored for their advantages such as convenient transportation, storage, and application. However, during the manufacturing process of granular fertilizers, relatively high temperatures often occur. If not cooled in time, it may affect the quality of the fertilizers and even the stability and strength of the granules. Therefore, timely and effective cooling treatment of granular fertilizers is a key link in fertilizer production.

[0003] A patent of Chinese Patent Application CN102898220A discloses a plate-type water-cooled cooling device applicable to granular fertilizers. The key points of its technical solution are as follows: The upper and lower ends of the outer shell are constricted, and the middle part of the outer shell is a cylindrical body with a rectangular cross-section. The fertilizer inlet is located at the upper constricted part of the outer shell, and the fertilizer outlet is located at the lower constricted part of the outer shell; An electronic belt discharger is arranged at the fertilizer outlet, and the discharge of the electronic belt discharger is controlled by a level control sensor at the upper constricted part of the outer shell; The circulating water inlet is arranged at the bottom of the cylindrical body, and the circulating water outlet is arranged at the top of the cylindrical body; A number of stainless steel water cooling plates are arranged inside the cylindrical body, and a number of stainless steel water cooling plates are all connected to the circulating water inlet and the circulating water outlet. A number of flow guiding plates are arranged inside the stainless steel water cooling plates.

[0004] However, the above technology often has the following defects: Both its cylindrical body and the cooling plates are designed to be in a vertical state, and it is difficult to grasp the distance between the cooling plates during implementation. For example, if the distance between the cooling plates is too small, the fertilizer is likely to be blocked when passing through; if the distance between the cooling plates is too large, when the fertilizer moves downward between adjacent cooling plates, some fertilizers are likely to be in a suspended state, that is, they fall vertically downward without contacting the cooling plates, making it difficult to fully exchange heat with the cooling plates to reduce the temperature; In addition, the inside of the cooling plate is a hollow structure for introducing cooling water, and a large number of flow guiding fins are provided. Therefore, when the cooling water is heated, scale is easily generated inside the cooling plate, and due to the complex structure inside the cooling plate, the scale is difficult to clean, which will not only reduce the heat exchange efficiency but also easily cause the phenomenon of blockage of the cooling plate in the long run.

[0005] Therefore, the present invention provides a plate-type water-cooled cooling device applicable to granular fertilizers. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A plate-type water-cooled cooling device applicable to granular fertilizers according to the present invention includes a housing; a feed inlet is provided at the top of the housing;

[0008] A group of heat exchange plates are evenly distributed inside the housing, and both the housing and the heat exchange plates are inclined; the heat exchange plates are made of a good heat-conducting material; a group of channels are formed between the housing and the heat exchange plates; the channels are divided into a heat absorption channel and a heat release channel, and the heat absorption channel and the heat release channel are alternately distributed;

[0009] The top of the heat release channel is communicated with the feed inlet, and discharge ports are provided at the bottom of the heat release channel; the top and bottom of the heat absorption channel are in a sealed state; a water inlet pipe and a water outlet pipe are fixedly connected to the outside of the housing; the water inlet pipe is communicated with the bottom of each heat absorption channel; the water outlet pipe is communicated with the top of each heat absorption channel.

[0010] Preferably, a group of partition plates are evenly distributed on the inner circumference of the bottom of the feed inlet; a group of bins are formed between the bottom of the feed inlet and the partition plates; the number of bins is the same as that of the heat release channels and they are respectively communicated with each other through discharge pipes.

[0011] Preferably, a trough plate is fixedly connected inside the top of the heat release channel, and the middle of the trough plate is lower than both sides; overflow troughs are provided on both sides of the trough plate.

[0012] Preferably, a flow disturbing plate is arranged inside each heat absorption channel; the flow disturbing plate is in close contact with the inner wall of the heat absorption channel; a group of water passing holes are evenly distributed on the surface of the flow disturbing plate; drive rods are rotatably connected to the top and bottom of the heat absorption channel, and the drive rods are driven by a motor; the drive rods penetrate through the flow disturbing plate and are connected to it through a screw-nut pair.

[0013] Preferably, a bent guide plate is arranged inside the top of the heat release channel; the guide plate is made of a good heat-conducting material; the lower end of the guide plate is close to the heat exchange plate at the bottom of the heat release channel and there is a gap between them.

[0014] Preferably, the upper end of the guide plate is hinged to the heat exchange plate at the top of the heat release channel; an elastic member is fixedly connected between the guide plate and the heat exchange plate; a groove block is arranged at the corresponding position of the heat exchange plate for the guide plate; a control ball is slidably connected inside the groove block; a first spring is fixedly connected between the control ball and the groove block; the top of the control ball protrudes from the surface of the heat exchange plate and extends into the heat absorption channel; a connecting rod is fixedly connected to the bottom of the control ball, and the connecting rod is in sliding and sealing cooperation with the groove block; the lower end of the connecting rod is close to the guide plate and is rotatably connected with a guide wheel.

[0015] Preferably, slag storage boxes are arranged at both sides of the bottom of the heat absorption channel; a collection port is arranged at the top of the slag storage box; a slag discharge port is arranged at the bottom of the slag storage box.

[0016] Preferably, both sides of the bottom of the spoiler are rotatably connected with rolling rollers through brackets, and the rolling rollers are attached to the inner wall of the bottom of the heat absorption channel; a group of convex points are evenly distributed on the surface of the rolling rollers.

[0017] Preferably, a chute is opened at the top of the slag storage box; an outer extension block is slidably connected inside the chute; a second spring is fixedly connected between the outer extension block and the chute; a top rod is fixedly connected to the lower side of the outer extension block, and the top rod is slidably matched with the bottom of the chute; a baffle is hinged inside the slag storage box at a position below the collection port and the chute, and a torsion spring is arranged at the hinge of the baffle.

[0018] Preferably, a "T"-shaped guide hole is opened inside the top rod; the lower end of the guide hole inclines towards the free end of the baffle.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. For the plate-type water-cooled cooling device applicable to granular fertilizers of the present invention, cooling water is injected into the bottoms of multiple heat absorption channels through a water inlet pipe. The cooling water flows upward inside the heat absorption channels and finally converges and flows out through the water outlet pipe at the top. The fertilizers are introduced into multiple heat release channels through a feed port, move along the heat release channels to the bottom and are discharged outward through a discharge port. The cooling water and the fertilizers move in opposite directions, and the two are separated by a heat exchange plate. The heat of the fertilizers is transferred to the cooling water through the heat exchange plate. Since both the heat absorption channels and the heat release channels are designed to be inclined, the fertilizers are in a flat state and roll downward when moving on the inclined surface of the heat exchange plate. Even if the fertilizers have a certain thickness, the distances between particles of different thicknesses and the heat exchange plate are likely to change during the movement process, which is conducive to the mutual adhesion and contact between the fertilizers and the heat exchange plate, reduces the phenomenon of the fertilizers being airborne, and improves the efficiency of heat transfer from the fertilizers to the heat exchange plate.

[0021] 2. For the plate-type water-cooled cooling device applicable to granular fertilizers of the present invention, after the fertilizers enter the heat release channels through a discharge pipe, they first fall on the surface of the trough plate. Then, the fertilizers converge in the middle of the trough plate and extend and move along the length direction of the trough plate, gradually filling the concave part in the middle of the trough plate. When the fertilizers reach a certain height on the surface of the trough plate, they fall downward through the overflow troughs on both sides and are discharged into the heat release channels. Through this structure, it is beneficial to promote the fertilizers to be evenly distributed and laid flat in the horizontal front-back direction first when entering the heat release channels, improve the evenness of the fertilizers laid flat on the surface of the heat exchange plate, and increase the utilization area and heat exchange efficiency of the heat exchange plate.

[0022] 3. A plate - type water - cooled cooling device for granular fertilizers according to the present invention, during the cooling process, the driving rod is intermittently driven by the motor to continuously rotate forward and backward, controlling each flow - disturbing plate to slowly reciprocate inside the corresponding heat - absorbing channel. Thus, the cooling water flows laterally through the water - passing holes on the surface of the flow - disturbing plate, making the water flow upward while flowing horizontally back and forth, extending the heat - absorption path of the cooling water, enhancing its turbulent flow effect, further improving the heat - exchange efficiency between the cooling water and the fertilizer. Moreover, during the movement of the flow - disturbing plate, it rubs and scrapes against the inner wall of the heat - absorbing channel, capable of removing the scale attached inside it, reducing the shielding of the heat - exchange plate by the scale, and ensuring that heat is smoothly transferred through the heat - exchange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is a perspective view of the present invention;

[0025] Figure 2 is a schematic structural view of the feed inlet in the present invention;

[0026] Figure 3 is a schematic structural view of the housing and the heat - exchange plate in the present invention;

[0027] Figure 4 is a schematic structural view of the flow - disturbing plate in the present invention;

[0028] Figure 5 is Figure 4 a partial enlarged view at A in;

[0029] Figure 6 is a cross - sectional view of the present invention;

[0030] Figure 7 is Figure 6 a partial enlarged view at B in;

[0031] Figure 8 is Figure 6 a cross - sectional view taken along C - C in;

[0032] Figure 9 is Figure 8 a partial enlarged view at D in.

[0033] In the figure: housing 1, feed inlet 2, heat - exchange plate 3, heat - absorbing channel 4, heat - releasing channel 5, discharge outlet 6, water inlet pipe 7, water outlet pipe 8, partition plate 9, discharge pipe 10, trough plate 11, overflow trough 12, flow - disturbing plate 13, water - passing hole 14, driving rod 15, motor 16, guiding piece 17, elastic member 18, groove block 19, control ball 20, spring one 21, connecting rod 22, slag storage box 23, collection port 24, slag discharge port 25, rolling roller 26, bump 27, sliding groove 28, outer - extending block 29, spring two 30, ejector rod 31, retaining piece 32, guiding hole 33. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] like Figures 1 to 9 As shown, the plate-type water-cooling cooling device for granular fertilizers according to the present invention comprises a shell 1; a feed port 2 is provided on the top of the shell 1;

[0036] A group of heat exchange plates 3 are evenly distributed inside the housing 1, and both the housing 1 and the heat exchange plates 3 are designed to be inclined; the heat exchange plates 3 are made of a good thermal conductive material; a group of channels are formed between the housing 1 and the heat exchange plates 3; the channels are divided into heat absorption channels 4 and heat release channels 5, and the heat absorption channels 4 and heat release channels 5 are staggered.

[0037] The top of the heat release channel 5 is connected to the feed port 2, and the bottom of the heat release channel 5 is provided with a discharge port 6; the top and bottom of the heat absorption channel 4 are both blocked; the outside of the shell 1 is fixedly connected to a water inlet pipe 7 and a water outlet pipe 8; the water inlet pipe 7 is connected to the bottom of each heat absorption channel 4; the water outlet pipe 8 is connected to the top of each heat absorption channel 4.

[0038] In the prior art, the cylinder and cooling plates of the fertilizer particle cooling device are designed to be in a vertical state, and the spacing between the cooling plates is difficult to grasp during implementation. For example, if the spacing between the cooling plates is too small, the fertilizer is prone to blockage when passing through. If the spacing between the cooling plates is too large, when the fertilizer moves from top to bottom between adjacent cooling plates, part of the fertilizer is prone to be in an airborne state, that is, it falls vertically downward without contacting the cooling plates, making it difficult to fully exchange heat and cool down with the cooling plates. In addition, the interior of the cooling plate is a hollow structure for passing cooling water, and is provided with a large number of guide vanes. Therefore, when the cooling water is heated, scale is easily generated inside the cooling plate, and based on the complex structure inside the cooling plate, the scale is difficult to clean, which not only reduces the heat exchange efficiency, but also easily causes the cooling plate to be blocked over time.

[0039] In the present invention, cooling water is injected into the bottoms of multiple heat absorption channels 4 through a water inlet pipe 7. The cooling water flows upward inside the heat absorption channels 4 and finally converges and flows out through a water outlet pipe 8 at the top. Fertilizer is introduced into the interiors of multiple heat release channels 5 through a feed inlet 2, moves downward along the heat release channels 5 to the bottom and is then discharged outward through a discharge outlet 6. The cooling water and the fertilizer move in opposite directions, and the heat transfer between them is bounded by a heat exchange plate 3. The heat of the fertilizer is transferred to the cooling water through the heat exchange plate 3. Since both the heat absorption channels 4 and the heat release channels 5 are designed to be inclined, the fertilizer is in a flat state and rolls downward when moving on the surface of the inclined heat exchange plate 3. Even if the fertilizer has a certain thickness, the distances between particles of different thicknesses and the heat exchange plate 3 are likely to change during the movement, which is beneficial for the fertilizer to fit and contact with the heat exchange plate 3, reducing the phenomenon of the fertilizer being airborne and improving the efficiency of heat transfer from the fertilizer to the heat exchange plate 3.

[0040] It should be noted that the distance between adjacent heat exchange plates 3 is L, the particle size of the fertilizer particles is D, and the particle size range of conventional compound fertilizers and slow-release fertilizers is 2 - 5 mm. In the present invention, L ≥ 20*D. Such a design makes it difficult for the fertilizer particles to be blocked between adjacent heat exchange plates 3. In addition, the cooling water flows inside the relatively wide heat absorption channels 4, and if scale forms on the inner wall surface of the heat absorption channels 4, it is easier to clean.

[0041] As another embodiment of the present invention, a group of partition plates 9 are evenly distributed on the inner circumference of the bottom of the feed inlet 2; a group of bins are formed between the bottom of the feed inlet 2 and the partition plates 9; the number of the bins is the same as that of the heat release channels 5 and they are respectively communicated with each other through discharge pipes 10. After the fertilizer is put into the feed inlet 2, due to the equalizing effect of the multiple partition plates 9, the amount of fertilizer entering different bins is relatively uniform. Then, the fertilizer in each bin enters the corresponding heat release channel 5 through the discharge pipe 10 respectively, so that the amount of fertilizer obtained by each heat release channel 5 is roughly the same.

[0042] A trough plate 11 is fixedly connected inside the top of each heat release channel 5, and the middle part of the trough plate 11 is lower than both sides; overflow grooves 12 are formed on both sides of the trough plate 11. After the fertilizer enters the heat release channel 5 through the discharge pipe 10, it first lands on the surface of the trough plate 11. Then, the fertilizer converges in the middle part of the trough plate 11 and extends and moves along the length direction of the trough plate 11, gradually filling the concave part in the middle of the trough plate 11. When the fertilizer reaches a certain height on the surface of the trough plate 11, it drops downward through the overflow grooves 12 on both sides and is discharged into the heat release channel 5. Through this structure, it is beneficial to promote the fertilizer to be evenly distributed and laid flat in the horizontal front-back direction when entering the heat release channel 5, improving the evenness of the fertilizer laid flat on the surface of the heat exchange plate 3, increasing the utilization area of the heat exchange plate 3 and the heat exchange efficiency.

[0043] As another embodiment of the present invention, turbulators 13 are provided inside the heat absorption channels 4; the turbulators 13 are in close contact with the inner walls of the heat absorption channels 4; a group of water passing holes 14 are evenly distributed on the surfaces of the turbulators 13; drive rods 15 are rotatably connected to the top and bottom of the heat absorption channels 4, and the drive rods 15 are driven by motors 16; the drive rods 15 penetrate through the turbulators 13 and are connected thereto through a lead screw-nut pair.

[0044] During the cooling process, the drive rods 15 are intermittently driven by the motors 16 to continuously rotate forward and backward, controlling the slow reciprocating movement of the respective turbulators 13 inside the corresponding heat absorption channels 4. Thus, the cooling water flows laterally through the water passing holes 14 on the surfaces of the turbulators 13, causing the water flow to flow upward while horizontally reciprocating, extending the heat absorption path of the cooling water, enhancing its turbulent flow effect, further improving the heat exchange efficiency between the cooling water and the fertilizer, and during the movement of the turbulators 13, friction and scraping against the inner walls of the heat absorption channels 4 can remove the scale adhering inside, reducing the shielding of the heat exchange plate 3 by the scale and ensuring that heat is smoothly transferred through the heat exchange plate 3.

[0045] As another embodiment of the present invention, a bent guide piece 17 is provided inside the top of the heat release channel 5; the guide piece 17 is made of a good heat-conducting material; the lower end of the guide piece 17 is close to the heat exchange plate 3 at the bottom of the heat release channel 5 and there is a gap S therebetween, and 5*D ≤ S ≤ L / 2; the materials of the heat exchange plate 3 and the guide piece 17 can both be copper alloy, aluminum alloy, stainless steel, etc.

[0046] By providing the guide piece 17, on the one hand, it can guide the fertilizer entering the heat release channel 5, preventing the fertilizer particles from bouncing continuously after falling on the surface of the heat exchange plate 3 and making it difficult to contact the heat exchange plate 3. Then the fertilizer moves along the gap between the bottom of the guide piece 17 and the heat exchange plate 3 below it, which can reduce the flat thickness of the fertilizer on the surface of the heat exchange plate 3 and further improve the contact and heat exchange efficiency between the fertilizer and the heat exchange plate 3. On the other hand, since the guide piece 17 is easy to conduct heat and is connected to the heat exchange plate 3, the guide piece 17 can absorb a certain amount of heat from the surface of the fertilizer during the process of guiding and contacting the fertilizer, and the heat is conducted along the guide piece 17 and the heat exchange plate 3 to the water flow.

[0047] The upper end of the material guiding piece 17 is hinged to the heat exchange plate 3 at the top of the heat release channel 5; an elastic member 18 is fixedly connected between the material guiding piece 17 and the heat exchange plate 3; a groove block 19 is arranged at the position of the heat exchange plate 3 corresponding to the material guiding piece 17; a control ball 20 is slidably connected inside the groove block 19; a first spring 21 is fixedly connected between the control ball 20 and the groove block 19; the top of the control ball 20 protrudes from the surface of the heat exchange plate 3 and extends into the heat absorption channel 4; a connecting rod 22 is fixedly connected to the bottom of the control ball 20, and the connecting rod 22 is slidably and sealingly matched with the groove block 19; the lower end of the connecting rod 22 is close to the material guiding piece 17 and is rotatably connected with a guide wheel.

[0048] When the spoiler 13 moves inside the heat absorption channel 4 to the position of the control ball 20, it can squeeze the control ball 20 into the groove block 19, press the bottom of the material guiding piece 17 through the connecting rod 22 and make it deflect by a certain angle. When the spoiler 13 passes over the control ball 20, the first spring 21 pushes the control ball 20 to reset, and then the elastic member 18 pulls the material guiding piece 17 to rotate and reset. Through the mutual cooperation between the connecting rod 22 and the elastic member 18, the material guiding piece 17 can deflect and vibrate intermittently, thereby promoting the downward movement of the fertilizer particles on its lower side and avoiding fertilizer blockage between the material guiding piece 17 and the heat exchange plate 3.

[0049] As another embodiment of the present invention, slag storage boxes 23 are arranged at both sides of the bottom of the heat absorption channel 4; a collection port 24 is arranged at the top of the slag storage box 23; a slag discharge port 25 is arranged at the bottom of the slag storage box 23, and the slag discharge port 25 is equipped with a sealing cover. After the scale attached to the inner wall of the heat absorption channel 4 is scraped off by the spoiler 13, it sinks downward to the bottom of the heat absorption channel 4 and is gradually dialed to both sides by the bottom of the spoiler 13, and enters the slag storage box 23 through the collection port 24 for storage. After the storage amount reaches a certain level, the slag discharge port 25 can be opened regularly to clean the scale deposits.

[0050] Rolling rollers 26 are rotatably connected to both sides of the bottom of the spoiler 13 through brackets, and the rolling rollers 26 are in contact with the inner wall of the bottom of the heat absorption channel 4; a group of convex points 27 are evenly distributed on the surface of the rolling rollers 26. During the reciprocating movement of the spoiler 13, it can drive the rolling rollers 26 to roll and crush on the inner wall of the bottom of the heat absorption channel 4, so as to crush the scale falling on the bottom of the heat absorption channel 4 by using the convex points 27. Since the scale is usually scraped off in flakes, this operation first breaks it, and then uses the bottom of the spoiler 13 to scrape the scale into the collection port 24, preventing the flaky scale from being too large to enter the slag storage box 23 through the collection port 24, and the crushed scale is also more conducive to storage, which can increase the actual storage upper limit of the slag storage box 23.

[0051] As another embodiment of the present invention, a chute 28 is provided on the top of the slag storage box 23; an overhanging block 29 is slidably connected to the inside of the chute 28; a spring 230 is fixedly connected between the overhanging block 29 and the chute 28; a top rod 31 is fixedly connected to the lower side of the overhanging block 29, and the top rod 31 slides in cooperation with the bottom of the chute 28; a baffle 32 is hingedly connected to the inside of the slag storage box 23 at a position below the collecting port 24 and the chute 28, and a torsion spring is provided at the hinge of the baffle 32.

[0052] As the spoiler 13 moves toward the slag storage box 23 and passes over it, the bottom of the spoiler 13 can first scrape the scale into the inside of the collection port 24 and fall on the surface of the baffle 32 for temporary storage. Then the rolling roller 26 moves to the chute 28 and squeezes the overhanging block 29, causing the overhanging block 29 and the push rod 31 to move downward. The lower end of the push rod 31 abuts against the surface of the baffle 32 and pushes it to rotate downward, so that the baffle 32 is in an inclined state, and the scale inside the collection port 24 can flow smoothly. The inclined surface of the baffle 32 slides into the slag storage box 23 to achieve smooth collection of scale. After that, after the rolling roller 26 leaves the overhanging block 29, the spring 2 30 pushes the overhanging block 29 and the push rod 31 to return upward, and the torsion spring drives the baffle 32 to rotate upward and re-seal the collection port 24, so that the slag storage box 23 remains in a closed state, preventing the lighter powdered scale inside from overflowing and rising upward under the action of water flow, thereby improving the collection and storage efficiency of the slag storage box 23 for scale.

[0053] A T-shaped guide hole 33 is defined within the top rod 31; the lower end of the guide hole 33 is inclined toward the free end of the baffle 32. When the extension block 29 moves upward within the chute 28, the guide hole 33 draws water from the outside into the chute 28. When the extension block 29 moves downward, the water within the chute 28 is squeezed outward through the guide hole 33, washing away scale along the inclined surface of the baffle 32. This further encourages the scale to slide quickly into the slag storage box 23, reducing the amount of scale remaining on the surface of the baffle 32.

[0054] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0056] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A plate-type water-cooling cooling device suitable for granular fertilizer, comprising a housing (1); a feed inlet (2) is provided at the top of the housing (1); It is characterized in that: A group of heat exchange plates (3) are evenly distributed inside the shell (1), and the shell (1) and the heat exchange plates (3) are both designed to be inclined; a group of channels are formed between the shell (1) and the heat exchange plates (3); the channels are divided into heat absorption channels (4) and heat release channels (5), and the heat absorption channels (4) and the heat release channels (5) are staggered; The top of the heat release channel (5) is connected to the feed port (2), and the bottom of each heat release channel (5) is provided with a discharge port (6); the outer side of the shell (1) is fixedly connected to a water inlet pipe (7) and a water outlet pipe (8); the water inlet pipe (7) is connected to the bottom of each heat absorption channel (4); and the water outlet pipe (8) is connected to the top of each heat absorption channel (4).

2. The plate-type water-cooled cooling device applicable to granular fertilizers according to claim 1, wherein: A group of partitions (9) are evenly distributed on the inner circumference of the bottom of the feed port (2); a group of silos are formed between the bottom of the feed port (2) and the partitions (9); the number of the silos and the heat release channels (5) is the same and they are connected to each other through discharge pipes (10).

3. A plate-type water-cooled cooling device applicable to granular fertilizers according to claim 2, characterized in that: A slot plate (11) is fixedly connected to the top of each heat release channel (5), and the middle of the slot plate (11) is lower than the two sides; overflow slots (12) are provided on both sides of the slot plate (11).

4. A plate-type water-cooled cooling device applicable to granular fertilizers according to claim 1, characterized in that: A spoiler (13) is provided inside the heat absorption channel (4); a group of water holes (14) are uniformly distributed on the surface of the spoiler (13); the top and bottom of the heat absorption channel (4) are rotatably connected to a transmission rod (15), and the transmission rod (15) is driven by a motor (16); the transmission rod (15) passes through the spoiler (13) and is connected to the spoiler (13) through a screw nut pair.

5. The plate-type water-cooling cooling device applicable to granular fertilizers according to claim 4, characterized in that: A bent guide sheet (17) is provided in the top of the heat release channel (5); the lower end of the guide sheet (17) is close to the heat exchange plate (3) at the bottom of the heat release channel (5) and there is a gap therebetween.

6. The plate-type water-cooled cooling device applicable to granular fertilizers according to claim 5, characterized in that: The upper end of the guide piece (17) is hinged to the heat exchange plate (3) at the top of the heat release channel (5); an elastic member (18) is fixedly connected between the guide piece (17) and the heat exchange plate (3); a groove block (19) is provided on the heat exchange plate (3) at a position corresponding to the guide piece (17); a control ball (20) is slidably connected inside the groove block (19); a spring (21) is fixedly connected between the control ball (20) and the groove block (19); a connecting rod (22) is fixedly connected to the bottom of the control ball (20), and the connecting rod (22) and the groove block (19) are slidably sealed; the lower end of the connecting rod (22) is close to the guide piece (17) and is rotatably connected to a guide wheel.

7. The plate-type water-cooled cooling device applicable to granular fertilizers according to claim 4, characterized in that: Slag storage boxes (23) are provided at both sides of the bottom of the heat absorption channel (4); a collecting port (24) is provided at the top of the slag storage box (23); and a slag discharge port (25) is provided at the bottom of the slag storage box (23).

8. A plate-type water-cooled cooling device applicable to granular fertilizers according to claim 7, characterized in that: Both sides of the bottom of the spoiler (13) are rotatably connected to a rolling roller (26) through a bracket; a group of convex points (27) are evenly distributed on the surface of the rolling roller (26).

9. A plate-type water-cooled cooling device applicable to granular fertilizers according to claim 8, characterized in that: A chute (28) is formed at the top of the slag storage box (23); an extension block (29) is slidably connected inside the chute (28); a second spring (30) is fixedly connected between the extension block (29) and the chute (28); a push rod (31) is fixedly connected to the lower side of the extension block (29), and the push rod (31) is slidably matched with the bottom of the chute (28); a baffle (32) is hinged inside the slag storage box (23), and a torsion spring is arranged at the hinge of the baffle (32).

10. A plate-type water-cooled cooling device applicable to granular fertilizers according to claim 9, characterized in that: A "T"-shaped guide hole (33) is formed inside the push rod (31); the lower end of the guide hole (33) inclines towards the free end of the baffle (32).

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