Granulation cooling assembly for chemical fertilizer production

Abstract

The utility model discloses a chemical fertilizer production granulation cooling assembly, which belongs to the technical field of chemical fertilizer production equipment and comprises a heat absorption pipe communicated with the inside of a granulator, a filter box fixed at one end of the heat absorption pipe and used for dust filtration, and a filter plate detachably mounted in the filter box and used for dust filtration, the air guide pipe and the heat absorption branch pipe are fixed on the filter box, the air guide pipe and the heat absorption branch pipe are oppositely distributed on the filter box, and the blowing and sucking dual-purpose pump is fixed at one end of the air guide pipe and is used for extracting heat in the granulator. The cleaning roller, the blocking plate, the dust discharging pipe, the electromagnetic valve and other structures are used in cooperation, the operation state of the blowing and sucking dual-purpose pump and the heat evacuation path in the granulator are switched, on the premise that operation and cooling of the granulator are not affected, the effect of cleaning the blocking face of the filter plate through back flushing is achieved, two purposes are achieved, and the production efficiency is improved. The period of dismounting, cleaning or replacing the filter plate is prolonged, and manpower and material resource cost for cleaning is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production equipment, in particular to a fertilizer production granulation cooling component. Background Art

[0002] Fertilizer is a kind of fertilizer made by physical or chemical methods that contains nutrients suitable for the growth of crop plants. It is also called inorganic fertilizer. Fertilizer is generally in granular form. Granular fertilizer is easy to transport and store, and it is also easy to dissolve in water quickly when used. A large amount of heat will be released during the granulation process of fertilizer production. A cooling device is needed to dissipate the heat inside to prevent high temperature from affecting the normal granulation of fertilizer. When the existing cooling device cools the inside of the granulator, the filter plate inside it will be blocked by the dust generated by the fertilizer granulation. Frequent shutdowns are required to disassemble, clean or replace the filter plate, which has a great impact on the production capacity of fertilizer granulation and will also accelerate the wear of the seals at the filter installation site.

[0003] The existing patent application number: 202121459342.1 discloses a granulation cooling device for agricultural fertilizer production. When the filter needs to be cleaned, the device can quickly disassemble or install the filter, so as to regularly clean the filter, ensure the filtering effect and permeability of the filter, and avoid blockage affecting the heat dissipation effect. In the above-mentioned prior art, in order to ensure the filtering effect and permeability of the filter, the device needs to stop frequently to disassemble the filter for cleaning, and the above-mentioned technical problems still exist. Utility Model Content

[0004] The utility model aims to provide a fertilizer production granulation cooling assembly to solve the problem that the above-mentioned background technology requires frequent shutdowns to disassemble, clean or replace the filter plate, which has a significant impact on the production capacity of fertilizer granulation and also accelerates the wear of the seal at the filter installation location.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a fertilizer production granulation cooling component, which comprises a heat absorbing pipe used for communicating with the inside of a granulator.

[0007] A filter box fixed to one end of the heat absorbing tube is used for dust filtering.

[0008] A filter plate for dust filtering can be detachably mounted in the filter box.

[0009] The air guide pipe and the heat absorption branch pipe are fixed on the filter box, and the air guide pipe and the heat absorption pipe are distributed on the filter box relatively.

[0010] A blowing and suction dual-purpose pump is fixed to one end of the air guide pipe to extract the heat inside the granulator.

[0011] The fertilizer production granulation cooling assembly also includes:

[0012] A three-way valve for switching the passage is arranged at one of the air inlet and outlet ports of the blowing and suction dual-purpose pump.

[0013] An air outlet pipe is fixed in another port on the three-way valve, and one end of the heat absorption branch pipe is fixed in the remaining port on the three-way valve.

[0014] A dust exhaust pipe is fixedly plugged into the filter box.

[0015] A solenoid valve is fixed on the dust exhaust pipe and is used to control the on-off of the dust exhaust pipe.

[0016] A blocking plate is relatively hinged to the filter box.

[0017] Two groups of limit blocks are fixed in the filter box and are used to limit the deflection angle of the blocking plate.

[0018] A cleaning part is relatively rotatably arranged in the filter box for cleaning the blocked surface of the filter plate.

[0019] A driving unit for driving the cleaning unit.

[0020] Furthermore, the cleaning unit comprises:

[0021] The reciprocating screws arranged in the filter box rotate relative to each other, and the threads on the two reciprocating screws are in opposite directions.

[0022] A nut seat is threadedly mounted on the reciprocating screw.

[0023] A cleaning roller disposed between the two nut seats and used for cleaning the filter plate is rotatably provided.

[0024] Flat gears are fixed to both ends of the cleaning roller.

[0025] A vertical rack is fixed in the filter box, and the vertical rack is meshed with the flat gear.

[0026] Furthermore, the cleaning roller is located between the filter plate and the sealing plate, and the sealing plate is located between the air outlet end of the heat absorption pipe and the cleaning roller.

[0027] Furthermore, the air inlet end of the heat absorbing branch pipe is located between the air outlet end of the heat absorbing pipe and the sealing plate.

[0028] Furthermore, the driving unit comprises:

[0029] A double-headed motor is fixed on the filter box.

[0030] A transmission gear rod arranged on the filter box is rotated, and one end of the transmission gear rod is fixed on the output shaft of the double-headed motor.

[0031] A bevel gear is fixed to the top end of the reciprocating screw, and the bevel gear is meshed with the tooth surface of one end of the transmission gear rod.

[0032] Furthermore, the fertilizer production granulation cooling assembly also includes a limiting ring fixedly mounted on the filter box, and the filter plate is plugged into a slot provided on the limiting ring.

[0033] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0034] 1. The utility model cooperates with the cleaning roller, the blocking plate, the dust exhaust pipe and the electromagnetic valve to start the driving part to drive the cleaning roller to operate and clean the blocked surface of the filter plate, then open the electromagnetic valve and switch the three-way valve, and switch the operation state of the blowing and suction dual-purpose pump to blow high-speed airflow into the filter box, which can not only use the airflow to push the blocking plate to close and block between the dust exhaust pipe and the heat absorption pipe, but also use the airflow to discharge the cleaned dust through the dust exhaust pipe. At the same time, it can also connect the heat absorption pipe through the heat absorption branch pipe to maintain the operation of the granulator and the cooling and heat dissipation effect inside it, so as to realize the cleaning of the filter plate without stopping the machine, and avoid the filter plate cleaning operation affecting the production capacity of the granulator;

[0035] 2. The utility model switches the operating state of the blowing and suction dual-purpose pump and switches the heat dissipation path in the granulator, thereby achieving the heat dissipation cooling of the granulator and the filter plate blockage cleaning operation without stopping the granulator, thus killing two birds with one stone. After the filter plate cleaning operation is completed, the operating state of the blowing and suction dual-purpose pump is switched again to restore the heat dissipation path in the granulator, and then the dust collection bag is installed on the air outlet pipe to prevent dust leakage from polluting the environment, greatly extending the cycle of filter plate disassembly, cleaning or replacement, and saving manpower and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an axonometric drawing of the utility model;

[0037] Figure 2 It is an axonometric drawing of the filter box of the utility model;

[0038] Figure 3 It is a partial cross-sectional view of the filter box of the utility model;

[0039] Figure 4 for Figure 3 Top view of the .

[0040] In the figure: 1. heat absorption pipe; 2. filter box; 3. air guide pipe; 4. blowing and suction dual-purpose pump; 5. dust exhaust pipe; 6. solenoid valve; 7. limit ring; 8. drive unit; 81. double-headed motor; 82. transmission gear rod; 83. bevel gear; 9. slot; 10. filter plate; 11. sealing plate; 12. cleaning unit; 121. reciprocating screw; 122. nut seat; 123. cleaning roller; 124. flat gear; 125. vertical rack; 13. limit block; 14. heat absorption branch pipe; 15. three-way valve; 16. outlet pipe. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0042] like Figures 1 to 4 As shown, a fertilizer production granulation cooling component includes a heat absorption pipe 1 for communicating with the interior of a granulator.

[0043] A filter box 2 is fixed to one end of the heat absorbing tube 1 for dust filtering.

[0044] A filter plate 10 is detachably mounted in the filter box 2 for dust filtering.

[0045] The air guide pipe 3 and the heat absorption branch pipe 14 are fixed on the filter box 2. The air guide pipe 3 and the heat absorption pipe 1 are distributed on the filter box 2 relatively.

[0046] A blowing and suction dual-purpose pump 4 is fixed to one end of the air guide pipe 3 to extract the heat inside the granulator.

[0047] Fertilizer production granulation cooling components also include:

[0048] A three-way valve 15 is provided at one of the air inlet and outlet ports of the blowing and suction dual-purpose pump 4 for switching the passage.

[0049] An air outlet pipe 16 is fixed in another port of the three-way valve 15 , and one end of the heat absorption branch pipe 14 is fixed in the remaining port of the three-way valve 15 .

[0050] A dust exhaust pipe 5 is fixedly plugged into the filter box 2 .

[0051] A solenoid valve 6 is fixed on the dust exhaust pipe 5 to control the on-off state of the dust exhaust pipe.

[0052] A sealing plate 11 is hinged relative to the filter box 2 .

[0053] Two groups of limit blocks 13 are fixed in the filter box 2 and are used to limit the deflection angle of the blocking plate 11 .

[0054] A cleaning portion 12 is relatively rotatably disposed in the filter box 2 for cleaning the clogged surface of the filter plate.

[0055] The driving unit 8 is used to drive the cleaning unit 12 to operate.

[0056] Start the suction state of the blowing and suction dual-purpose pump 4, and now pump the space near the air duct in the filter box 2 into a negative pressure state. Under the action of the air pressure difference, the blocking plate 11 can open a certain opening to connect the filter box 2, the heat absorption pipe 1 and the inside of the granulator. The air in the granulator and the heat and dust generated by granulation can be sucked away and discharged through the three-way valve 15 and the air outlet pipe 16 to achieve a cooling effect on the inside of the granulator. When the mixed air flow passes through the inside of the filter box 2, the filter plate 10 will filter out the dust in the mixed air flow and make When the dust is adsorbed on the side of the filter plate 10 facing the heat absorption pipe 1 or falls into the filter box 2, and the dust accumulated on the filter plate 10 affects its ventilation, heat dissipation and filtering effect, the three-way valve 15 can be adjusted to close the air outlet pipe 16, open the heat absorption branch pipe 14, and switch the blowing and suction dual-purpose pump 4 to the blowing state, set the dust collection bag at the outlet of the dust exhaust pipe 5, open the solenoid valve 6, and the blowing and suction dual-purpose pump 4 can transfer the air in the granulator and the heat and dust generated by granulation through the heat absorption pipe 1, the heat absorption branch pipe 14 and the three-way valve 15. The dust is continuously sucked away and blown to the filter plate 10 in the filter box 2 through the air guide pipe 3, and the driving part 8 is started synchronously to drive the cleaning part 12 to operate, and the side of the filter plate 10 facing the heat absorption pipe 1 is fully cleaned, and the high-speed airflow blown in by the blowing and suction dual-purpose pump 4 is used to close the sealing plate 11 to isolate the heat absorption pipe 1 and the filter plate 10. Under the blowing of the airflow, the dust swept down and the dust in the filter box 2 flow into the dust exhaust pipe 5 and finally enter the dust collection bag, so that the filter plate 10 is cleaned. Only the blowing and suction are needed. The dust attached to the filter plate 10 can be cleaned by running the pump 4 in the blowing state for a short period of time, and then the state of the blowing and suction dual-purpose pump 4, the three-way valve 15, and the solenoid valve 6 are switched back, so that the inside of the granulator can be cooled normally, and the dust accumulated on the filter plate 10 facing the air guide pipe 3 during the cleaning process of the filter plate 10 and the dust remaining in the blowing and suction dual-purpose pump 4 are extracted, and the cleanliness of the side of the filter plate 10 facing the air guide pipe 3 and the blowing and suction dual-purpose pump 4 is maintained to prevent dust residue from affecting the filtering and ventilation and heat dissipation effects of the filter plate 10.

[0057] In this embodiment, the cleaning unit 12 includes:

[0058] The reciprocating screws 121 disposed in the filter box 2 rotate relative to each other, and the threads on the two reciprocating screws 121 are in opposite directions.

[0059] The nut seat 122 is threadedly mounted on the reciprocating screw 121 .

[0060] A cleaning roller 123 disposed between the two nut seats 122 is rotatably provided to clean the filter plate 10 .

[0061] The flat gears 124 are fixed to both ends of the cleaning roller 123 .

[0062] A vertical rack 125 fixed in the filter box 2 is meshed with the flat gear 124 .

[0063] Driven by the driving unit 8, the two reciprocating screws 121 rotate in opposite directions. Since the threads on the two reciprocating screws 121 are in opposite directions, the two nut seats 122 can be lifted and lowered synchronously, and the cleaning roller 123 and the flat gear 124 can be driven to move up and down synchronously. At the same time, when the flat gear 124 moves up and down, it engages with the vertical rack 125, so that the cleaning roller 123 can rotate synchronously when moving up and down, thereby cleaning the dust attached to the filter plate 10, so that the high-speed airflow blown into the filter box 2 by the blowing and suction dual-purpose pump 4 can blow the dust out through the dust exhaust pipe 5, thereby completing the self-cleaning effect of the filter plate 10, extending the service life of the filter plate 10, and greatly reducing the frequency of stopping the granulator and disassembling and cleaning the filter plate 10, thereby avoiding affecting the production capacity of the granulator.

[0064] In this embodiment, the cleaning roller 123 is located between the filter plate 10 and the sealing plate 11, and the sealing plate 11 is located between the air outlet end of the heat absorption tube 1 and the cleaning roller 123, so that when the filter plate 10 is cleaned, the air flow blown into the filter box 2 by the dual-purpose blowing and suction pump 4 can be used to close the sealing plate 11, so as to isolate the heat absorption tube 1 and the filter plate 10, so that the mixed air flow in the granulator flows to another branch, thereby achieving the effect of cleaning the filter plate 10 without stopping the machine.

[0065] In this embodiment, the air inlet end of the heat absorption branch pipe 14 is located between the air outlet end of the heat absorption pipe 1 and the sealing plate 11. When the sealing plate 11 isolates the heat absorption pipe 1 and the filter plate 10, the heat absorption pipe 1 can be connected to change the route of the mixed airflow in the granulator and blow it back into the filter box 2, thereby achieving the effect of backflow cleaning of the filter plate 10, and cooperating with the cleaning part 12 to further improve the cleaning effect of the filter plate 10.

[0066] In this embodiment, the driving unit includes:

[0067] A double-headed motor 81 is fixed on the filter box 2.

[0068] The transmission gear rod 82 disposed on the filter box 2 is rotated, and one end of the transmission gear rod 82 is fixed on the output shaft of the double-headed motor 81.

[0069] The bevel gear 83 fixed to the top of the reciprocating screw 121 meshes with the tooth surface at one end of the transmission gear rod 82. When the filter plate 10 needs to be cleaned, the double-headed motor 81 is started to drive the two reciprocating screws 121 to rotate synchronously in opposite directions through the two sets of transmission gear rods 82 and the bevel gear 83. In conjunction with the design of the opposite directions of the threads on the two reciprocating screws 121, the two nut seats 122 can be raised and lowered synchronously, thereby achieving reciprocating cleaning of the surface of the filter plate 10 and improving the cleaning efficiency and comprehensiveness of the filter plate 10.

[0070] In this embodiment, the fertilizer production granulation cooling component also includes a limiting ring 7 fixedly mounted on the filter box 2, and the filter plate 10 is plugged into the slot 9 provided on the limiting ring 7. Through the self-cleaning operation of the filter plate 10, the frequency of disassembly and cleaning of the filter plate 10 can be greatly reduced, so that the filter plate 10 can be disassembled by simple plug-in and interference fit. The operation is simple and convenient, and can effectively reduce the wear between the filter plate 10 and the inner wall of the slot 9.

[0071] The above description is only the preferred embodiment of the utility model, and the parts not described in the utility model can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. The changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the utility model should also fall within the protection scope of the utility model.

Claims

1. A fertilizer production granulation cooling assembly, comprising a heat absorbing pipe (1) for communicating with the interior of a granulator; A filter box (2) fixed to one end of the heat absorption tube (1) and used for dust filtering; A filter plate (10) detachably mounted in the filter box (2) for filtering dust; an air guide pipe (3) and a heat absorption branch pipe (14) fixed on the filter box (2), wherein the air guide pipe (3) and the heat absorption pipe (1) are distributed on the filter box (2) relative to each other; A blowing and suction dual-purpose pump (4) fixed to one end of the air guide pipe (3) for extracting heat from inside the granulator; It is characterized in that The fertilizer production granulation cooling assembly also includes: A three-way valve (15) provided at one of the air inlet and outlet ports of the dual-purpose blowing and suction pump (4) for switching the passage; An air outlet pipe (16) is fixed in another port on the three-way valve (15), and one end of the heat absorption branch pipe (14) is fixed in the remaining port on the three-way valve (15); A dust exhaust pipe (5) fixedly plugged into the filter box (2); A solenoid valve (6) fixed to the dust exhaust pipe (5) and used for controlling the on / off state of the dust exhaust pipe; A blocking plate (11) relatively hingedly connected to the filter box (2); Two sets of limit blocks (13) fixed in the filter box (2) and used to limit the deflection angle of the blocking plate (11); A cleaning portion (12) relatively rotatably disposed in the filter box (2) for cleaning a clogged surface of a filter plate; A driving unit (8) for driving the cleaning unit (12) to operate.

2. The fertilizer production granulation cooling assembly according to claim 1, characterized in that: The cleaning unit (12) comprises: Reciprocating screws (121) disposed in the filter box (2) rotate relative to each other, the threads on the two reciprocating screws (121) being in opposite directions; A nut seat (122) threadably mounted on the reciprocating screw (121); Rotating a cleaning roller (123) disposed between the two nut seats (122) for cleaning the filter plate (10); Flat gears (124) fixed to both ends of the cleaning roller (123); A vertical rack (125) is fixed in the filter box (2), and the vertical rack (125) is meshed with the flat gear (124).

3. The fertilizer production granulation cooling assembly according to claim 2, characterized in that: The cleaning roller (123) is located between the filter plate (10) and the sealing plate (11), and the sealing plate (11) is located between the air outlet end of the heat absorption pipe (1) and the cleaning roller (123).

4. The fertilizer production granulation cooling assembly according to claim 3, characterized in that: The air inlet end of the heat absorbing branch pipe (14) is located between the air outlet end of the heat absorbing pipe (1) and the sealing plate (11).

5. The fertilizer production granulation cooling assembly according to claim 4, characterized in that: The driving unit comprises: A double-headed motor (81) fixed on the filter box (2); Rotating a transmission gear rod (82) provided on the filter box (2), wherein one end of the transmission gear rod (82) is fixed to the output shaft of the double-headed motor (81); A bevel gear (83) is fixed to the top end of the reciprocating screw (121), and the bevel gear (83) is meshed with a tooth surface at one end of the transmission gear rod (82).

6. The fertilizer production granulation cooling assembly according to claim 1, characterized in that: The fertilizer production granulation cooling assembly further comprises a limiting ring (7) fixedly mounted on the filter box (2), and the filter plate (10) is plugged into a slot (9) provided on the limiting ring (7).

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