A nano-suspension agent grinding temperature control device

Abstract

The utility model relates to related technical field of grinding temperature control equipment especially, a kind of nanometer suspension agent grinding temperature control equipment, including base, the upper surface both ends of base are fixedly installed with support frame, the inner ring of support frame is fixedly installed with grinding cylinder, spiral groove is opened in the inside partition layer of grinding cylinder, the upper end opening of spiral groove is fixedly connected with first interface, one end of first interface is fixedly connected with liquid return pipe.The nanometer suspension agent grinding temperature control equipment, through the double cooling structure of spiral groove and heat pipe, cooperate with the temperature detecting element detection cylinder in corresponding, realize synchronous heat dissipation inside and outside grinding cylinder, cooling liquid is delivered to liquid inlet pipe and first connecting pipe by delivery pump, then flow through heat pipe and spiral groove, then cooling liquid that absorbs heat is returned to cooling liquid tank by second connecting pipe and liquid return pipe, continuous circulation, carry out efficient heat dissipation to grinding cylinder.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding temperature control equipment, and in particular to a grinding temperature control equipment for nano-suspension agents. Background Technology

[0002] Nano-suspensions are formulations in which pesticide active ingredients are nano-sized and dispersed in water. They offer advantages such as enhanced efficacy, reduced dosage, and extended duration of action. The processing requires grinding to the nanoscale particle size, primarily using equipment such as sand mills. These mills can also assist in improving the efficiency of nano-dispersants. Grinding is the core step in preparing nano-suspensions; the active ingredient is pulverized to the nanoscale particle size using a sand mill to ensure uniform dispersion in water. During grinding, parameters such as temperature and flow rate must be controlled to prevent particle agglomeration or equipment wear. Therefore, a temperature control device for nano-suspension grinding is needed.

[0003] In most existing nano-suspension grinding temperature control equipment, the high-speed rotation and collision of the grinding media generate a lot of frictional heat in the grinding chamber during use. The heat dissipation method is to open spiral structure slots during the processing of the cylinder and then circulate the coolant for heat dissipation. However, the heat dissipation efficiency is low, and the heat is highest at the center of the cylinder, and the heat cannot be dissipated in time.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN220514340U that discloses a horizontal sand mill. The patent states that "during the grinding process, the temperature inside the casing rises. After prolonged operation, a temperature sensing element detects that the temperature inside the casing exceeds a threshold and transmits this signal to the controller. The controller then controls the water pump to operate. Water from the tank flows through the outlet pipe into the heat exchange tube. The water flowing in the heat exchange tube absorbs and carries away the heat released from the grinding cylinder. The hot water then flows from the inlet pipe into the water tank, ultimately cooling the casing. When the temperature sensing element detects that the temperature inside the casing is below the threshold of 15 degrees Celsius, the water pump stops operating, saving energy and significantly increasing the lifespan of the components inside the casing." Although heat dissipation can be achieved through the heat exchange tube, it is located on the outer ring of the grinding cylinder, meaning it can only absorb and dissipate heat from the inside out. However, the high heat in the center of the cylinder will still persist.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a temperature control device for grinding nano-suspension agents, in order to solve the problem mentioned in the background art of existing temperature control devices for grinding nano-suspension agents. In most sand mills, when in use, the high-speed rotation and collision of the grinding media generate a large amount of frictional heat in the grinding chamber. The heat dissipation method is to open spiral structure slots during the processing of the cylinder and then circulate the coolant for heat dissipation. However, the heat dissipation efficiency is low, and the heat is highest at the center of the cylinder, and the heat cannot be dissipated in time.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a nano-suspension grinding temperature control device, comprising a base, with support frames fixedly installed at both ends of the upper surface of the base, a grinding cylinder fixedly installed in the inner ring of the support frames, a spiral groove formed in the inner partition of the grinding cylinder, a first interface fixedly connected to the upper opening of the spiral groove, a return pipe fixedly connected to one end of the first interface, a second interface fixedly installed in the lower opening of the spiral groove, an inlet pipe fixedly connected to one end of the second interface, a coolant tank fixedly placed on one side of the upper surface of the base, a delivery pump connected to the lower side of the coolant tank via a pipe, an inner liner provided in the inner ring of the grinding cylinder, a heat-conducting pipe fixedly attached to the inner wall of the inner liner, a first connecting pipe connected to the inlet of one end of the heat-conducting pipe through the grinding cylinder cover plate, and a second connecting pipe connected to the outlet of the other end of the heat-conducting pipe through the grinding cylinder cover plate.

[0008] Preferably, a discharge pipe is fixedly connected to one end of the grinding cylinder cover plate, and a tubular centrifugal filter screen is fixedly installed on the inner side of the grinding cylinder at a position corresponding to the discharge pipe.

[0009] Preferably, a support base is fixedly installed on one side of the upper surface of the base, a drive motor is fixedly installed on the upper surface of the support base, a connecting shaft is fixedly connected to the output end of the drive motor, a feed pipe is fixedly installed through the end cap of the other end of the grinding cylinder, and the connecting shaft is connected to the bearing of the end cap of the grinding cylinder.

[0010] Preferably, a connecting frame is fixedly fitted around one end of the connecting shaft, a mounting frame is fixedly connected to one end of the connecting frame, a connecting plate is fixedly mounted on the upper surface of the mounting frame, and diffusers are evenly distributed on the surface of the connecting plate.

[0011] Preferably, the outer ring of the inner liner has grooves at both ends, and the inner liner is rotatably connected to the inner rings at both ends of the connecting frame through the grooves.

[0012] Preferably, one end of the return pipe is connected to the upper side of the coolant tank, and one end of the second connecting pipe is fixedly connected to one side of the return pipe.

[0013] Preferably, one end of the inlet pipe is fixedly connected to the outlet end of the delivery pump, and the first connecting pipe is fixedly connected to one side of the inlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This nano-suspension grinding temperature control device, through the dual cooling structure of spiral groove and heat conduction pipe, and in conjunction with the corresponding temperature measuring element to detect the temperature inside the cylinder, achieves synchronous heat dissipation inside and outside the grinding cylinder. The delivery pump delivers coolant to the inlet pipe and the first connecting pipe, and then through the flow of heat conduction pipe and spiral groove, and then through the second connecting pipe and return pipe, the coolant that has absorbed heat is returned to the coolant tank, continuously circulating, and efficiently dissipating heat from the grinding cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the grinding cylinder of this utility model; Figure 3 This is a schematic diagram of the distribution structure of the disperser of this utility model; Figure 4 This is a schematic diagram of the mutual cooperation between the mounting bracket and the inner liner of this utility model; Figure 5 This is a schematic diagram of the coolant circulation structure of this utility model.

[0016] In the diagram: 1. Base; 2. Support frame; 3. Grinding cylinder; 4. Discharge pipe; 5. Tubular centrifugal filter screen; 6. Support base; 7. Drive motor; 8. Connecting shaft; 9. Feed pipe; 10. Connecting frame; 11. Mounting frame; 12. Connecting plate; 13. Disperser; 14. Spiral groove; 15. First interface; 16. Return pipe; 17. Second interface; 18. Inlet pipe; 19. Coolant tank; 20. Inner liner; 21. Heat conduction pipe; 22. First connecting pipe; 23. Second connecting pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5This utility model provides a technical solution: a nano-suspension grinding temperature control device, including a base 1, with support frames 2 fixedly installed at both ends of the upper surface of the base 1, a grinding cylinder 3 fixedly installed in the inner ring of the support frame 2, a spiral groove 14 opened in the inner partition of the grinding cylinder 3, a first interface 15 fixedly connected to the upper opening of the spiral groove 14, a return pipe 16 fixedly connected to one end of the first interface 15, a second interface 17 fixedly installed in the lower opening of the spiral groove 14, an inlet pipe 18 fixedly connected to one end of the second interface 17, a coolant tank 19 fixedly placed on one side of the upper surface of the base 1, a delivery pump connected to a pipe on one side of the coolant tank 19 near the lower position, an inner liner 20 provided in the inner ring of the grinding cylinder 3, a heat-conducting pipe 21 fixedly attached to the inner wall of the inner liner 20, a first connecting pipe 22 connected to one end of the inlet of the heat-conducting pipe 21 through the cover plate of the grinding cylinder 3, and a second connecting pipe 23 connected to the other end of the heat-conducting pipe 21 through the cover plate of the grinding cylinder 3.

[0019] Furthermore, a discharge pipe 4 is fixedly installed through one end of the cover plate of the grinding cylinder 3. A tubular centrifugal filter 5 is fixedly installed on the inner side of the grinding cylinder 3 at the position corresponding to the discharge pipe 4. With the setting of the tubular centrifugal filter 5, under the action of centrifugal force generated by high-speed rotation, only nanoparticles that reach the specified particle size can pass through the tubular centrifugal filter 5. Particles that do not meet the standard are blocked and returned to the grinding area for further crushing.

[0020] Furthermore, a support base 6 is fixedly installed on one side of the upper surface of the base 1, and a drive motor 7 is fixedly installed on the upper surface of the support base 6. A connecting shaft 8 is fixedly connected to the output end of the drive motor 7. A feed pipe 9 is fixedly installed through the end cap of the other end of the grinding cylinder 3. The connecting shaft 8 is connected to the bearing of the end cap of the grinding cylinder 3. Through the setting of the connecting shaft 8, the connection between the connecting shaft 8 and the bearing of the grinding cylinder 3 adopts a double sealing design, which ensures smooth rotation and prevents material leakage. The overall structure has low vibration and low noise, and is suitable for long-term continuous operation.

[0021] Furthermore, a connecting frame 10 is fixedly fitted around one end of the connecting shaft 8, and a mounting frame 11 is fixedly connected to one end of the connecting frame 10. A connecting plate 12 is fixedly installed on the upper surface of the mounting frame 11, and dispersers 13 are evenly distributed on the surface of the connecting plate 12. The dispersers 13 are made of zirconia ceramic material, which has ultra-high wear resistance. The synchronous operation of multiple dispersers 13 can drive the material to disperse quickly.

[0022] Furthermore, the inner liner 20 has grooves at both ends of its outer ring. The inner liner 20 is rotatably connected to the inner rings at both ends of the connecting frame 10 via these grooves. The inner liner 20's outer ring has precisely machined annular grooves at both ends, with self-lubricating graphite bearings embedded within these grooves. The inner rings at both ends of the connecting frame 10 have precision-ground flanges at corresponding positions, forming a tight fit with the grooves. This rotary connection structure allows the inner liner 20 to rotate synchronously with the connecting frame 10 while maintaining precise concentricity. The self-lubricating properties of the graphite bearings eliminate the need for additional lubrication, avoiding the risk of lubricant contamination of the product. This precisely fitted structure ensures that the heat pipe 21 and the inner liner 20 always maintain optimal contact, improving heat transfer efficiency.

[0023] Furthermore, one end of the return pipe 16 is connected to the upper side of the coolant tank 19, and one end of the second connecting pipe 23 is fixedly connected to one side of the return pipe 16. Through the setting of the return pipe 16, the return pipe 16 adopts a double-layer insulation design. One end is connected to the upper side of the coolant tank 19 through a quick-release connector. The second connecting pipe 23 adopts a coaxial sleeve structure. The inner tube carries the coolant, and the outer tube is vacuum-insulated. One end of it is connected to the return pipe 16 through a three-way valve. The coolant tank 19 has a built-in temperature sensor and a liquid level alarm device to monitor the system status in real time.

[0024] Furthermore, one end of the inlet pipe 18 is fixedly connected to the outlet end of the delivery pump, and the first connecting pipe 22 is fixedly connected to one side of the inlet pipe 18. The inlet pipe 18 is made of high-pressure resistant stainless steel corrugated pipe. One end is connected to the outlet end of the delivery pump through a flange, and the other end is divided into two paths: the main path is connected to the second interface 17, and the branch path is connected to the first connecting pipe 22 through a flow control valve. The delivery pump is a magnetically driven centrifugal pump.

[0025] Working principle: First, after the drive motor 7 starts, it drives the entire grinding system through the connecting shaft 8 connected to its output end. The connecting frame 10 sleeved on the outer ring of the connecting shaft 8 rotates accordingly, thereby driving the mounting frame 11 and the connecting plate 12 and the disperser 13 fixed on it to rotate at high speed. The material is transported into the grinding cylinder 3 through the feed pipe 9. Under the action of the high-speed rotating disperser 13, the material and the grinding media undergo strong collision and shearing, achieving a nano-level pulverization effect. Next, the delivery pump draws coolant from the coolant tank 19 and delivers the coolant to two paths through the inlet pipe 18. One path enters the spiral groove 14 of the inner partition of the grinding cylinder 3 through the second interface 17, rising along the spiral path to absorb heat from the cylinder. The other path enters the guide tube attached to the inner wall of the inner liner 20 through the first connecting pipe 22. Heat pipe 21 directly absorbs heat from the grinding center area. The two coolant streams eventually converge into return pipe 16 through first interface 15 and second connecting pipe 23, returning to coolant tank 19 to complete the circulation and heat dissipation. Inner liner 20 is rotatably connected to inner ring of connecting frame 10 through grooves at both ends of its outer ring to ensure stability during high-speed rotation. The design of heat pipe 21 directly adhering to the inner wall of inner liner 20 can efficiently conduct and dissipate the frictional heat generated during grinding. At the same time, the spiral groove 14 cooling structure on the outside of grinding cylinder 3 provides secondary cooling to the cylinder, forming a dual cooling mechanism inside and outside. Materials with nanoscale particle size pass through tubular centrifugal filter 5 under centrifugal force, while particles that do not meet the standard continue to remain in the grinding area for further crushing. Qualified products are discharged through discharge pipe 4, completing the entire grinding temperature control process.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature control device for grinding nano-suspension agents, comprising a base (1), characterized in that: Support frames (2) are fixedly installed at both ends of the upper surface of the base (1). A grinding cylinder (3) is fixedly installed on the inner ring of the support frame (2). A spiral groove (14) is opened in the inner partition of the grinding cylinder (3). A first interface (15) is fixedly connected to the upper opening of the spiral groove (14). A return pipe (16) is fixedly connected to one end of the first interface (15). A second interface (17) is fixedly installed at the lower opening of the spiral groove (14). An inlet pipe is fixedly connected to one end of the second interface (17). (18) A coolant tank (19) is fixedly placed on one side of the upper surface of the base (1). A delivery pump is connected to the lower side of the coolant tank (19). An inner liner (20) is provided in the inner ring of the grinding cylinder (3). A heat-conducting pipe (21) is attached to the inner wall of the inner liner (20). A first connecting pipe (22) is connected to the inlet of one end of the heat-conducting pipe (21) through the cover plate of the grinding cylinder (3). A second connecting pipe (23) is connected to the outlet of the other end of the heat-conducting pipe (21) through the cover plate of the grinding cylinder (3).

2. The nano-suspension grinding temperature control device according to claim 1, characterized in that: The end cover plate of the grinding cylinder (3) is fixedly connected to the discharge pipe (4), and a tubular centrifugal filter screen (5) is fixedly installed on the inner side of the grinding cylinder (3) at the position corresponding to the discharge pipe (4).

3. The nano-suspension grinding temperature control device according to claim 1, characterized in that: A support base (6) is fixedly installed on one side of the upper surface of the base (1). A drive motor (7) is fixedly installed on the upper surface of the support base (6). A connecting shaft (8) is fixedly connected to the output end of the drive motor (7). A feed pipe (9) is fixedly installed through the end cap of the other end of the grinding cylinder (3). The connecting shaft (8) is connected to the bearing of the end cap of the grinding cylinder (3).

4. The nano-suspension grinding temperature control device according to claim 3, characterized in that: A connecting frame (10) is fixedly fitted around one end of the connecting shaft (8). A mounting frame (11) is fixedly connected to one end of the connecting frame (10). A connecting plate (12) is fixedly installed on the upper surface of the mounting frame (11). Dispersants (13) are evenly distributed on the surface of the connecting plate (12).

5. The nano-suspension grinding temperature control device according to claim 1, characterized in that: The inner liner (20) has grooves at both ends of its outer ring, and the inner liner (20) is rotatably connected to the inner rings at both ends of the connecting frame (10) through the grooves.

6. The nano-suspension grinding temperature control device according to claim 1, characterized in that: One end of the return pipe (16) is connected to the upper side of the coolant tank (19), and one end of the second connecting pipe (23) is fixedly connected to one side of the return pipe (16).

7. The nano-suspension grinding temperature control device according to claim 1, characterized in that: One end of the inlet pipe (18) is fixedly connected to the outlet end of the delivery pump, and the first connecting pipe (22) is fixedly connected to one side of the inlet pipe (18).

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