Spraying device of granulator
By designing a spray device with a high-pressure hose and a water spray pipe on the granulator, combined with a control box and drive mechanism, the problem of uneven wetting in traditional granulators is solved, achieving uniform wetting of granules and production stability, and adapting to the simultaneous operation of multiple granulators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-27
AI Technical Summary
When multiple sets of equipment in a traditional granulator are operating simultaneously, it is difficult to add cooling water and powdered materials evenly, resulting in uneven wetting of the materials and affecting production stability.
A spraying device for a granulator was designed, which uses a high-pressure hose and a water spray pipe. The control box controls the solenoid valve and drive mechanism to precisely control the water spray volume and spray position, ensuring that the granules are evenly wetted. The rotation of the granulation chamber drives the water spray pipe to move, achieving full wetting.
It achieves uniform wetting of particles inside the granulator, ensures consistent particle size, improves production efficiency and particle stability, adapts to different particle weight requirements, and reduces energy waste.
Smart Images
Figure CN224044266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the field of plastic particle production, in particular to a granulator spraying device. BACKGROUND
[0002] A granulator is a forming machine capable of forming materials into specific shapes. It can be widely applied in the fields of chemical industry, petroleum chemical industry, pharmaceutical industry, food industry, building material industry, mining industry, environmental protection, printing and dyeing, ceramics, rubber, plastics and the like. In the processing process, the working performance of the granulator directly affects the stability of material production.
[0003] A granulator is a commonly used processing equipment which can form sheet or particles into small balls or particles suitable for forming. When the granulator is running, small seeds are first put into the granulator, then cooling water is put into the granulator to wet the surface of the seeds, then powder material is put in, so that the powder material is uniformly adhered to the surface of the seeds, and then drying is performed, and the process is repeated until particles of appropriate size are obtained.
[0004] In the granulation process, cooling water and powder material need to be repeatedly added to the granulator. The traditional method of adding cooling water and powder material by using a water pipe cannot meet the simultaneous operation of multiple granulators. In the process of adding cooling water by using a water pipe, the seeds are easily unevenly wetted, which affects the stability of the material performance. CONTENT OF THE INVENTION
[0005] In order to improve the problem of uneven wetting during material processing, the application provides a granulator spraying device.
[0006] The application provides a granulator spraying device which adopts the following technical scheme:
[0007] A granulator spraying device comprises a machine body and a granulation chamber rotatably connected with the machine body, characterized in that: the granulation chamber is provided with an inlet hole and an outlet hole at two ends respectively, a support frame is fixedly connected to the machine body close to one end of the inlet hole, a water supply pipeline is arranged on the support frame, an electromagnetic valve is communicated with the water supply pipeline, first manual ball valves are communicated with the water supply pipeline at two ends of the electromagnetic valve, a control box electrically connected with the electromagnetic valve is fixedly connected to the machine body, a pressure gauge is arranged on one end of the water supply pipeline close to the inlet hole, a high-pressure hose is communicated with the water outlet end of the water supply pipeline, the other end of the high-pressure hose is connected with a water spraying pipe, the water spraying pipe extends into the interior of the granulation chamber, and a driving mechanism for driving the water spraying pipe to move is arranged on the support frame.
[0008] By adopting the technical scheme, when the granulator rotates, the powder material is put into the granulation chamber through the feeding hole, the control box controls the electromagnetic valve to open, the water supply pipeline starts to supply water, the water supply pipeline is connected with the high-pressure hose, the high-pressure hose is connected with the water spraying pipe, the driving mechanism drives the water spraying pipe to move and adjusts the position of the water spraying pipe in the granulation chamber, the pressure gauge arranged on the water supply pipeline can observe the water pressure in the water supply pipeline, the electromagnetic valve starting time is determined by observing the water pressure in the water supply pipeline and the size of the granules in the granulator, and the opening degree of the electromagnetic valve is adjusted according to the wetting condition of the granules in the granulation chamber and through the control box. When the device operates, the water injection amount can be accurately controlled, the granules are uniformly wetted, the size consistency of the produced granules is ensured, and the stability of the granules is ensured.
[0009] Optionally, the driving mechanism comprises a gear ring fixed to the hole wall of the feeding hole, an electric telescopic rod fixed to the support frame, a gear rotatably connected to the output end of the electric telescopic rod, a connecting rod rotatably connected to one end of the gear close to the hole wall of the feeding hole, a lifting assembly for controlling the lifting of the water spraying pipe, and an adjusting assembly for controlling the horizontal moving range of the water spraying pipe. One end of the connecting rod away from the gear is rotatably arranged on the water spraying pipe, the gear and the gear ring are meshingly connected, and the water spraying pipe is arranged on the lifting assembly.
[0010] By adopting the technical scheme, when the granules in the granulation chamber need to be wetted by water, the electric telescopic rod is started to move the gear fixed to the output end of the electric telescopic rod, and the gear is meshed with the gear ring on the hole wall of the feeding hole. The gear ring drives the gear to rotate, the gear drives the connecting rod to rotate, the connecting rod drives the lifting assembly to move left and right, the lifting assembly can adjust the height of the water spraying pipe in the granulation chamber, and the adjusting assembly can change the moving range of the water spraying pipe in the granulation chamber left and right. By rotating the gear ring and the gear, the position of the water spraying pipe is changed, the water mist sprayed by the water spraying pipe fully contacts the material, the kinetic energy of the rotating granulation chamber is used to drive the water spraying pipe to move, the granules are more fully wetted, and the energy is reused.
[0011] Optionally, the adjusting assembly comprises a sliding rail fixed to the end face of the gear, a lead screw rotatably connected in the sliding rail, and a sliding block screwedly connected to the lead screw, and the sliding block is rotatably connected with the connecting rod.
[0012] By adopting the technical scheme, when it is necessary to adjust the moving range of the water spraying pipe left and right, the lead screw is rotated, the sliding block screwedly connected to the lead screw moves along the lead screw, the distance from the connecting rod to the gear center is changed, and when the gear rotates, the moving range of the connecting rod changes with the position of the sliding block on the lead screw.
[0013] Optionally, the lifting assembly comprises a sliding rod connected to the support frame and a straight rod connected to the sliding rod, the straight rod extends into the granulation chamber, a plurality of adjusting holes are formed in the sliding rod, the connecting position of the straight rod and the sliding rod is also provided with an adjusting hole, and a pin is inserted into the adjusting hole.
[0014] By adopting the above technical scheme, when the gear drives the connecting rod to move, the connecting rod drives the sliding rod to move on the support frame, the sliding rod drives the straight rod to move in the granulation chamber, the position of the straight rod on the sliding rod is adjusted, the adjusting hole on the straight rod is aligned with the adjusting hole on the sliding rod, and the pin is fixed, the water spraying pipe is arranged on the straight rod, the water spraying pipe reciprocates in the granulation chamber along with the straight rod, the height of the water spraying pipe to the bottom of the granulation chamber is adjusted according to the amount of materials in the granulation chamber and the mixing condition of the materials in the granulation chamber, and the requirement for wetting due to different amounts of particles in the granulation chamber is met.
[0015] Optionally, the machine body is provided with two maintenance pipelines connected to the water supply pipeline, the two ends of the maintenance pipeline are located on the side, away from the electromagnetic valve, of the two first manual ball valves, and the maintenance pipeline is connected with a second manual ball valve.
[0016] By adopting the above technical scheme, when the electromagnetic valve fails or needs to be replaced, the first manual ball valve is closed, the second manual ball valve is opened, the water supply pipeline is connected to the maintenance pipeline, the maintenance pipeline supplies water to the granulation chamber, after the maintenance of the electromagnetic valve is completed, the first manual ball valve is opened and the second manual ball valve is closed, and the water supply pipeline normally supplies water; the maintenance pipeline ensures the normal operation of the granulation chamber when the electromagnetic valve fails.
[0017] Optionally, the electric telescopic rod is electrically connected to the electromagnetic valve.
[0018] By adopting the above technical scheme, when the control box controls the electromagnetic valve to be opened, the water supply pipeline starts to supply water, the electric telescopic rod makes the gear and the gear ring mesh with each other, and the water spraying pipe uniformly wets the materials in the material chamber, when the electromagnetic valve is closed, the water supply pipeline stops supplying water, the gear and the gear ring are separated from each other, and the water spraying pipe stops moving; the water spraying pipe stops moving when the electromagnetic valve is closed, and the influence of the rotation of the gear on the working efficiency of the granulation chamber is reduced.
[0019] Optionally, a plurality of atomizing nozzles are fixed to the water spraying pipe.
[0020] By adopting the above technical scheme, the water spraying pipe is fixed with a plurality of atomizing nozzles, and the materials can be fully wetted.
[0021] Optionally, the support frame is fixed with a shielding plate.
[0022] By adopting the technical scheme, the feeding hole is provided with a shielding plate, which prevents water mist from spraying outside the granulation chamber and causing material splashing when the water spraying pipe sprays and when the powder material is put into the granulation chamber.
[0023] To sum up, the present application has at least one of the following beneficial technical effects:
[0024] 1. When the particles in the granulation chamber need to be wetted, the control box controls the electromagnetic valve to open, the water supply pipeline supplies water, the high-pressure hose is connected to the water supply pipeline, the water spraying pipe is connected to the high-pressure hose, and the water spraying pipe wets the particles in the granulation chamber. When the control box controls the electromagnetic valve to close, the powder material is put into the granulation chamber, the granulation chamber rotates to mix the particles and the powder material, and after the mixture is uniformly mixed, the control box controls the electromagnetic valve to open, and the water spraying pipe continues to wet the particles until the particle size reaches the production requirement. The opening time of the electromagnetic valve can be set by the pressure gauge provided on the water supply pipeline and the amount of the powder material put in, so as to accurately control the water requirement of the particle wetting and ensure the performance of the particle production.
[0025] 2. When the electromagnetic valve is opened, the electric telescopic rod is started at the same time, the electric telescopic rod makes the gear mesh with the gear ring, the gear ring drives the gear to rotate, the gear drives the connecting rod to move, the connecting rod drives the sliding rod to slide on the support frame, and the sliding rod drives the straight rod to move in the granulation chamber, so as to make the water spraying pipe reciprocate in the granulation chamber and make the water spraying pipe fully contact with the particles in the granulation chamber, thereby avoiding the phenomenon that the production particle size is not uniform due to insufficient wetting.
[0026] 3. When the amount of the particles put into the granulation chamber changes, the screw rod is rotated, the screw rod drives the sliding rod to move on the screw rod, the position of the connecting rod on the gear changes, the gear drives the connecting rod to rotate, the connecting rod drives the sliding rod to move on the support frame, and when the position of the sliding block changes, the range of the sliding rod moving on the support frame changes, the position of the straight rod on the sliding rod is adjusted and fixed by the bolt, the height of the water spraying pipe to the bottom of the granulation chamber can be adjusted, the moving range of the water spraying pipe and the height of the water spraying pipe to the bottom of the granulation chamber can be adjusted to adapt to the wetting requirement of the particles of different amounts in the granulation chamber, so as to make the performance of the produced particles stable. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;
[0028] Figure 2 is Figure 1 an enlarged schematic diagram of part A in
[0029] Figure 3 is Figure 2 an enlarged schematic diagram of part B in
[0030] Figure 4is a structural schematic diagram of a machine body provided with multiple granulation chambers in the embodiment of the present application.
[0031] Fig. 1, machine body; 2, water supply pipeline; 3, high-pressure hose; 4, water spraying pipe; 51, gear ring; 52, gear; 53, electric telescopic rod; 54, connecting rod; 55, adjusting assembly; 551, screw rod; 552, sliding block; 553, sliding rail; 56, lifting assembly; 561, sliding rod; 562, straight rod; 563, adjusting hole; 6, electromagnetic valve; 7, first manual ball valve; 8, maintenance pipeline; 9, second manual ball valve; 10, support frame; 11, feeding hole; 12, shielding plate; 13, control box. DETAILED DESCRIPTION
[0032] The following will be described in detail with reference to the accompanying drawings. Figures 1-3 The present application is further described in detail.
[0033] The embodiment of the present application discloses a spraying device of a granulator. Referring to Figures 1-4 , the spraying device of the granulator comprises a machine body 1 and a granulation chamber rotatably connected to the machine body 1. The granulation chamber can have multiple ones. The granulation chamber is provided with a feeding hole 11 and a discharging hole at two ends. The machine body 1 is fixedly connected with a support frame 10 near the feeding hole 11. The machine body 1 is provided with a water supply pipeline 2. The water supply pipeline 2 is communicated with an electromagnetic valve 6. The water supply pipeline 2 is communicated with a first manual ball valve 7 on both sides of the electromagnetic valve 6. The water outlet end of the water supply pipeline 2 is communicated with a high-pressure hose 3. The other end of the high-pressure hose 3 is communicated with a water spraying pipe 4. The other end of the water spraying pipe 4 extends into the granulation chamber. The support frame 10 is provided with a control mechanism for controlling the movement of the water spraying pipe 4. The machine body 1 is fixedly connected with a control box 13 electrically connected with the electromagnetic valve 6.
[0034] The machine body 1 drives the rotation of the granulation chamber. When water spraying and wetting are needed in the granulation chamber, the control box 13 controls the electromagnetic valve 6 to open the water supply pipeline 2. The water outlet end of the water supply pipeline 2 is connected with a pressure gauge, so that the water pressure in the water supply pipeline 2 can be observed. The water supply pipeline 2 is communicated with the high-pressure hose 3. The high-pressure hose 3 can be stretched and bent. The high-pressure hose 3 is communicated with the water spraying pipe 4. The water spraying pipe 4 extends into the granulation chamber. The water spraying pipe 4 wets the particles in the granulation chamber. After the seeds in the granulation chamber are fully wetted, the control box 13 controls the electromagnetic valve 6 to be closed, and powdery materials are put into the granulation chamber. The granulation chamber fully mixes the seed particles and the powdery materials, so that the volume of the seed particles is increased. The process is repeated until the seed particles are stirred into particles with appropriate size. According to the water pressure and the amount of materials in the granulation chamber, the opening time of the electromagnetic valve 6 is controlled by the control box 13, so that the water demand of the granulation chamber is accurately controlled. The water supply pipeline 2 is connected in series and supplies water to the granulation chamber. Multiple granulators can be simultaneously operated, and the production efficiency of the particles is improved.
[0035] Reference Figure 1 , Figure 2 andFigure 3 The driving mechanism comprises a gear ring 51 fixed to the hole wall of the feeding hole 11, an electric telescopic rod 53 fixed to the machine body 1, a gear 52 rotatably connected to the output end of the electric telescopic rod 53, a connecting rod 54 rotatably connected to the end surface of the gear 52, an adjusting assembly 55 for controlling the moving range of the water spraying pipe 4, and a lifting assembly 56 for controlling the lifting of the water spraying pipe 4, the electric telescopic rod 53 is electrically connected with the electromagnetic valve 6; the lifting assembly 56 comprises a sliding rod 561 rotatably connected to the end of the connecting rod 54 away from the gear 52 and a straight rod 562 slidably connected with the sliding rod 561, the sliding rod 561 is slidably connected with the supporting frame 10, the straight rod 562 extends into the inside of the granulating chamber, a plurality of adjusting holes 563 are formed in the sliding rod 561, the adjusting hole 563 is also formed in the connecting position of the straight rod 562 and the sliding rod 561, and a plug is inserted into the connecting position of the straight rod 562 and the sliding rod 561, the water spraying pipe 4 can be fixed on the straight rod 562 by pipe clamps, threaded connection or self-locking screw thread.
[0036] When the electromagnetic valve 6 is opened, the output end of the electric telescopic rod 53 moves, the gear 52 is engaged with the gear ring 51, the granulating chamber rotates to drive the gear ring 51 to rotate, the gear ring 51 drives the gear 52 to rotate, one end of the connecting rod 54 fixed to the end surface of the gear 52 rotates with the gear 52, the connecting rod 54 drives the sliding rod 561 rotatably connected to the other end of the connecting rod 54 to move on the supporting frame 10, the sliding rod 561 drives the straight rod 562 to move in the inside of the granulating chamber, so that the water spraying pipe 4 reciprocally moves in the granulating chamber; the position of the straight rod 562 on the sliding rod 561 is adjusted, and the sliding rod 561 and the straight rod 562 are fixed by the plug, so that the height of the water spraying pipe 4 to the bottom of the granulating chamber can be adjusted, the height of the water spraying pipe 4 to the bottom of the granulating chamber is adjusted according to the mixing condition of the particles in the granulating chamber and the particle amount in the granulating chamber, the gear 52 drives the water spraying pipe 4 to reciprocally move in the granulating chamber, so that the particles in the inside of the granulating chamber are fully wetted, and the reciprocally moving of the water spraying pipe 4 driven by the rotation of the granulating chamber strengthens the secondary utilization of energy.
[0037] Reference Figure 1 , Figure 2 and Figure 3 The adjusting assembly 55 comprises a sliding rail 553 fixed to the end surface of the gear 52, a lead screw 551 rotatably connected in the sliding rail 553 and a sliding block 552 threadedly connected on the lead screw 551, the connecting rod 54 is rotatably connected with the sliding block 552, the sliding block 552 drives the sliding rod 561 to move on the supporting frame 10, so that the water spraying pipe 4 on the straight rod 562 reciprocally moves in the granulating chamber; the position of the sliding block 552 on the gear 52 is changed by twisting the lead screw 551, when the sliding block 552 is close to the center of the gear 52, the moving range of the connecting rod 54 driven by the gear 52 is smaller, when the sliding block 552 is away from the center of the gear 52, the moving range of the connecting rod 54 driven by the gear 52 is larger; the position of the sliding block 552 on the lead screw 551 is adjusted according to the amount of the particles in the inside of the granulating chamber, so that the water spraying pipe 4 is opposite to the particles in the granulating chamber, and the particles in the granulating chamber are fully wetted when the granulating chamber is granulated.
[0038] With reference to Figure 1 And Figure 3 , the body 1 is provided with a maintenance pipeline 8 connected with the water supply pipeline 2 at both ends, the maintenance pipeline 8 is located at the side away from the electromagnetic valve 6 of the two first manual ball valves 7 at both ends respectively, and the maintenance pipeline 8 is communicated with a second manual ball valve 9; when the electromagnetic valve 6 needs to be repaired and replaced due to failure, the two first manual ball valves 7 are closed, the second manual ball valve 9 is opened, the electromagnetic valve 6 can be disassembled for repair, and the maintenance pipeline 8 can supply water into the granulation chamber. The opening and closing of the maintenance pipeline 8 needs to be manually operated and is not controlled by the control box 13, so that the operation of the granulation chamber is not affected when the electromagnetic valve 6 fails.
[0039] With reference to Figure 1 And Figure 2 , the water spraying pipe 4 is fixedly connected with a plurality of atomizing nozzles facing the bottom of the granulation chamber, the atomizing nozzles can make the water fully form water mist, and the particles in the granulation chamber are uniformly wetted; the supporting frame 10 is fixedly connected with a baffle 12, the baffle 12 is a semicircular waterproof plate matched with the feeding hole 11, which can prevent the powdery material from splashing out when feeding into the granulation chamber, and prevent water mist from splashing out when the water spraying pipe 4 is wetted.
[0040] The implementation principle of the granulator spraying device is as follows: when the granules in the granulating chamber need to be moistened, the control box 13 controls the electromagnetic valve 6 to open, and the water supply pipeline 2 supplies water, the water supply pipeline 2 is communicated with the high-pressure hose 3, the high-pressure hose 3 is communicated with the water spraying pipe 4, a plurality of atomizing nozzles are fixed on the water spraying pipe 4, the atomizing nozzles form water mist to moisten the granules in the granulating chamber, the water supply pipeline 2 is communicated with the maintenance pipeline 8, when the electromagnetic valve 6 fails, the first manual ball valve 7 is closed and the second manual ball valve 9 is opened, the electromagnetic valve 6 can be disassembled and repaired, and the opening time of the electromagnetic valve 6 can be controlled according to the amount of granules in the granulating chamber and the water pressure of the water supply pipeline 2; at the same time that the electromagnetic valve 6 is opened, the electric telescopic rod 53 makes the gear 52 engage with the gear ring 51 fixed to the hole wall of the feeding hole 11, the gear 52 drives the connecting rod 54 to rotate, the connecting rod 54 drives the sliding rod 561 to slide on the support frame 10, the sliding rod 561 drives the straight rod 562 to move in the granulating chamber, and the water spraying pipe 4 is arranged on the straight rod 562, so that the water spraying pipe 4 moistens the granules in the granulating chamber; adjusting the position of the straight rod 562 on the sliding rod 561 and fixing it by means of the bolt can adjust the height of the water spraying pipe 4 from the bottom of the granulating chamber, rotating the lead screw 551 can adjust the position of the sliding block 552 on the lead screw 551, the connecting rod 54 is rotationally connected with the sliding block 552, the other end of the connecting rod 54 is rotationally connected with the sliding rod 561, the sliding rod 561 slides on the support frame 10, rotating the lead screw 551 changes the range of movement of the connecting rod 54 and the sliding rod 561, and the water spraying range of the water spraying pipe 4 can be adjusted according to the amount of granules in the granulating chamber; the device can accurately control the water supply amount for moistening the granules in the granulating chamber, and fully utilizes the kinetic energy generated by the rotation of the granulating chamber to drive the water spraying pipe 4 to move to moisten the granules, so that the stability of the granulator in producing granules is ensured while meeting the simultaneous operation of multiple granulators.
[0041] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A granulator spraying device comprising a machine body (1) and a granulation chamber rotatably connected to the machine body (1), characterized in that: The granulating chamber is provided with an inlet hole (11) and an outlet hole at two ends respectively, a support frame (10) is fixedly connected to the machine body (1) near the inlet hole (11), a water supply pipeline (2) is arranged on the machine body (1), the water supply pipeline (2) is communicated with an electromagnetic valve (6), the water supply pipeline (2) is communicated with a first manual ball valve (7) at two ends of the electromagnetic valve (6), a control box (13) electrically connected with the electromagnetic valve (6) is fixedly connected to the machine body (1), a pressure gauge is arranged on one end of the water supply pipeline (2) near the inlet hole (11), a high-pressure hose (3) is communicated with a water outlet end of the water supply pipeline (2), the other end of the high-pressure hose (3) is connected with a water spraying pipe (4), the water spraying pipe (4) extends into the granulating chamber, a driving mechanism for driving the water spraying pipe (4) to move is arranged on the support frame (10).
2. A granulator spraying device according to claim 1, characterised in that: The driving mechanism comprises a gear ring (51) fixedly connected to the hole wall of the inlet hole (11), an electric telescopic rod (53) fixedly connected to the machine body (1), a gear (52) rotationally connected to the output end of the electric telescopic rod (53), a connecting rod (54) rotationally arranged on the end face of the gear (52), a lifting assembly (56) for controlling the lifting of the water spraying pipe (4), and an adjusting assembly (55) for controlling the horizontal movement range of the water spraying pipe (4), one end of the connecting rod (54) away from the gear (52) is rotationally arranged on the water spraying pipe (4), the gear (52) and the gear ring (51) are meshingly connected, and the water spraying pipe (4) is arranged on the lifting assembly (56).
3. A granulator spraying device according to claim 2, characterised in that: The adjusting assembly (55) comprises a sliding rail (553) fixedly connected to the end face of the gear (52), a lead screw (551) rotationally connected in the sliding rail (553), and a sliding block (552) threadedly connected on the lead screw (551), and the sliding block (552) is rotationally connected with the connecting rod (54).
4. A granulator spraying device according to claim 2, characterised in that: The lifting assembly (56) comprises a sliding rod (561) slidingly connected with the support frame (10) and a straight rod (562) slidingly connected with the sliding rod (561), the straight rod (562) extends into the granulating chamber, a plurality of adjusting holes (563) are formed in the sliding rod (561), the connecting position of the straight rod (562) and the sliding rod (561) is also provided with an adjusting hole (563), a bolt is inserted into the connecting position of the straight rod (562) and the sliding rod (561), the sliding rod (561) is rotationally connected with one end of the connecting rod (54) away from the gear (52), and the water spraying pipe (4) is arranged on the straight rod (562).
5. A granulator spraying device according to claim 1, characterized in that: Two maintenance pipelines (8) which are both communicated with the water supply pipeline (2) are arranged on the machine body (1), two ends of the maintenance pipeline (8) are located on the sides of the two first manual ball valves (7) away from the electromagnetic valve (6), and the maintenance pipeline (8) is communicated with a second manual ball valve (9).
6. A granulator spraying device according to claim 2, characterised in that: The electric telescopic rod (53) is electrically connected with the electromagnetic valve (6).
7. A granulator spraying device according to claim 1, characterized in that: A plurality of atomizing nozzles are fixedly connected to the water spraying pipe (4).
8. A granulator spraying device according to claim 1, characterized in that: The support frame (10) is fixed with a shielding plate (12).