Processing equipment for high-performance insulating powder coating and use method of processing equipment

By using liquid nitrogen cooling components and an automated control system, the problem of adhesion of insulating powder coatings in high-temperature environments has been solved, enabling an efficient and safe powder processing process that improves the quality of powder coatings and the cleanliness of the production environment.

CN120900770APending Publication Date: 2025-11-07ANHUI SUNROAD ENVIRONMENT PROTECTIVE NEW MATERIALS
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Patent Information

Application Number
CN202511352866.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing grinding equipment lacks temperature control, which may cause insulating powder coatings to soften and stick together in high-temperature environments, forming hard lumps, affecting physical properties and chemical stability, increasing defect rates, and posing safety risks.

Method used

The liquid nitrogen cooling system utilizes the extremely low temperature and phase change endothermic properties of liquid nitrogen to achieve efficient cooling. Combined with the powder filter box, weighing sensor, and bag clamping assembly, it enables automated control and powder collection, reducing dust and improving safety and cleanliness.

Benefits of technology

It effectively reduces the temperature of the grinding chamber, prevents material adhesion, improves grinding efficiency and powder quality, and ensures a safe and environmentally friendly production environment.

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Abstract

The invention discloses high-performance insulating powder coating processing equipment and a using method thereof, and relates to the technical field of powder coating processing.The high-performance insulating powder coating processing equipment comprises a bottom plate, grinding equipment and a discharging tower, the grinding equipment and the discharging tower are fixed to the bottom plate, the outer wall of a grinding chamber of the grinding equipment is thin, and a liquid nitrogen cooling assembly is additionally arranged; and a powder filtering box is arranged on one side of the grinding equipment, and a filtering bag is fixed in the powder filtering box. The liquid nitrogen cooling assembly is arranged, the extremely low temperature and phase change heat absorption characteristics of liquid nitrogen are utilized, efficient and rapid cooling is achieved, the temperature of the grinding chamber is reduced, blocky materials can be ground in a low-temperature environment, the problems of material adhesion and low grinding efficiency caused by high temperature are avoided, and the grinding efficiency can be improved through real-time data. And the two electromagnetic valves are correspondingly and automatically regulated and controlled, the cooling function is achieved, frequency conversion regulation and control according to the actual situation and the nitrogen waste gas discharging function are achieved, and the grinding efficiency and the powder quality are improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder coating processing, in particular to a high-performance insulation powder coating processing equipment and a use method thereof. BACKGROUND

[0002] Powder coating is a solid powder synthetic resin coating composed of solid resin and pigment, filler and additive, etc. Unlike ordinary solvent-based coating and water-based coating, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film forming and low energy consumption. Powder coating has thermoplasticity and thermosetting. Due to its pollution-free, resource-saving and high efficiency, powder coating is widely used at home and abroad. With the increasing demand for powder coating board and coating performance, powder coating has different properties. The international electrical epoxy coating technology is widely used in busbars, copper bars, circuit breakers, switch cabinets, insulators, bus ducts and 12-40.5kV switch cabinet bus insulation and other electrical components that require high-voltage insulation.

[0003] In the prior art, a powder coating processing equipment is disclosed in Chinese Patent No. CN109926159B, which comprises a hopper, a crushing box, a cylinder, a motor, a transmission shaft, a crushing rod and a sieve plate. The hopper is arranged on a support, the crushing box is provided with a sliding block, the cylinder is arranged on the hopper, the motor is arranged on the hopper, the transmission shaft is arranged on the motor, the crushing rod is arranged on the connecting block, and the sieve plate is arranged in the hopper.

[0004] However, the grinding chamber of the existing grinding equipment usually does not have a temperature control function. When the coating material after rough crushing is ground, the mechanical energy conversion and material friction of the grinding equipment will cause the temperature of the material to rise. Due to the raw material of the insulation powder, the premature reaction of the resin and curing agent in the powder may be triggered in a high-temperature environment, so that the powder particles will soften and adhere, forming hard blocks that are difficult to disperse, resulting in difficulty in stabilizing the physical properties and chemical stability of the powder, increasing the performance degradation and safety risk of the insulation powder coating. If the friction heat of the grinding chamber continues to increase, the insulation powder coating produced is also prone to softening and adhesion, resulting in a high rejection rate of the insulation powder coating.

[0005] Therefore, we propose a high-performance insulation powder coating processing equipment and a use method thereof to solve the problems mentioned above. SUMMARY

[0006] The application aims to provide a high-performance insulating powder coating processing device and a use method thereof.

[0007] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-performance insulating powder coating processing device, comprising a base plate, a powder grinding device and a discharge tower fixed on the base plate respectively, wherein the grinding chamber of the powder grinding device has a thin outer wall and is additionally provided with a liquid nitrogen cooling assembly, one side of the powder grinding device is provided with a powder filtering box, a filter bag is fixed in the powder filtering box, a support is fixed on the top of the base plate, a connecting plate is fixed on the top of the support, four weighing sensors are symmetrically fixed on the bottom of the powder filtering box, the bottom of the four weighing sensors is fixed on the top of the connecting plate, a discharging pipe is fixed in communication with the bottom of the powder filtering box, a bag clamping assembly for clamping the bag opening of a collecting bag is arranged on the bottom of the connecting plate, the top end of the filter bag is fixed to the inner wall of the top of the powder filtering box, and the bottom end of the filter bag is fixed to the top end of the discharging pipe. The liquid nitrogen cooling assembly comprises a heat preservation shell fixed on the outer wall of the grinding chamber, and a temperature sensor is fixed on the outer wall of the grinding chamber, with a detection needle located in the grinding chamber.

[0008] The bag clamping assembly comprises two arc-shaped double lug plates symmetrically arranged on both sides of the bottom end of the discharging pipe, and an L-shaped rod is fixed on both sides of each arc-shaped double lug plate.

[0009] Preferably, the liquid nitrogen cooling assembly further comprises a nitrogen inlet pipe and a nitrogen outlet pipe fixed in communication with the surface wall of the heat preservation shell respectively, and an electromagnetic valve is fixed on the surface of each of the nitrogen inlet pipe and the nitrogen outlet pipe.

[0010] Preferably, the bag clamping assembly further comprises an electric push rod, a first U-shaped piece is rotatably connected to the top end of each of the four L-shaped rods through a pin shaft, and the top of each first U-shaped piece is fixed to the bottom of the connecting plate.

[0011] Preferably, a second U-shaped piece is rotatably connected to the two ends of the electric push rod through a pin shaft, and the second U-shaped piece is fixed to one of the L-shaped rods on each of the two arc-shaped double lug plates.

[0012] Preferably, the two arc-shaped double lug plates are matched with the discharging pipe, a rubber pad is fixed to the inner wall of each arc-shaped double lug plate, and a pad block is fixed to the two ends of each arc-shaped double lug plate, so that the two pad blocks can be in contact with each other when the arc-shaped double lug plates are in close contact with the surface of the discharging pipe, thereby filling the gap between the arc-shaped double lug plates.

[0013] Preferably, the surface of the feeding pipe is mounted with a feeding valve, and the bottom end of the feeding pipe penetrates through the bottom of the connecting plate, the middle part of the connecting plate is provided with a avoiding opening, and the feeding pipe and the feeding valve are located in the avoiding opening.

[0014] Preferably, the surface of the feeding pipe is fixedly communicated with an airflow pipe, the airflow pipe is located below the feeding valve, the bottom end of a sidewall of the filter box is fixedly communicated with a hose, the surface of the hose is mounted with a check valve, and a filter core is detachably mounted between one end of the airflow pipe and the bottom end of the hose.

[0015] Preferably, the filter bag is a bucket shape with a large upper diameter and a small lower diameter, the top of the filter box is fixedly communicated with a feeding pipe for conveying powder into the filter bag, the feeding pipe is fixedly communicated with a discharge port of a sorting cavity of the grinding device, and a sidewall of the filter box is fixedly communicated with an air outlet pipe.

[0016] Preferably, the air inlet of the discharge tower is fixedly communicated with a three-way pipe, and the other two ends of the three-way pipe are fixedly communicated with a nitrogen outlet pipe and the air outlet pipe respectively.

[0017] A kind of inspection method for high-performance insulation powder coating processing equipment, comprising the following steps: Step one: initially introduce the data of each electrical device into the relevant module of electrical control device, including the grinding chamber temperature threshold of grinding device, the maximum powder storage value of filter box and the single opening time of feeding valve when powder is discharged, mainly used for subsequent identification and review of equipment.

[0018] Step two: the liquid nitrogen cooling assembly utilizes its extremely low temperature and phase change endothermic characteristics to achieve efficient and rapid cooling, reduces the temperature of grinding chamber, so that block material can be ground in low temperature environment, and the temperature in grinding chamber can be monitored in real time, the data is shared with the relevant module of electrical control device, compared with the temperature threshold, whether the measured temperature meets the operation standard is quickly reviewed, and the flow of nitrogen is timely regulated to maintain the low temperature environment in grinding chamber.

[0019] Step three: the ground powder in grinding chamber is upward along with the airflow in grinding device, enters sorting chamber to be screened, qualified powder enters filter box along with gas from feeding pipe, the powder in airflow is retained in filter bag to be collected, and the excess gas is discharged from filter box through air outlet pipe.

[0020] Step four: the weighing sensor monitors the powder storage in filter box in real time, the data is shared with the relevant module of electrical control device, compared with the standard data, whether the powder storage in filter box meets the maximum storage standard is quickly reviewed, if the result is correct, the unloading prompt is sent to the corresponding worker, the powder in filter bag is single discharged and bagged according to the set quality, otherwise, the unloading prompt is not triggered.

[0021] Step five: when discharging, the bag clamping assembly clamps the bag opening of the collecting bag on the discharging pipe, reduces the dust generated by the falling powder, and the excess gas in the collecting bag flows upward, passes through the secondary filtration of the airflow pipe and filter core, and then returns to the filter powder box after the overflow powder is filtered out, and is discharged together with the gas in the filter powder box.

[0022] Step six: the excess gas in the filter powder box, the backflow gas during powder discharging and packaging, and the used nitrogen gas are all transported to the exhaust tower for separate discharge, so that the waste gas is discharged in compliance.

[0023] Compared with the prior art, the beneficial effects of the present application are: 1、The liquid nitrogen cooling assembly is provided, the extremely low temperature and phase change heat absorption characteristics of liquid nitrogen are used, efficient and rapid cooling is realized, the temperature of the grinding chamber is reduced, blocky materials can be ground into powder in a low-temperature environment, the problems of material adhesion and low grinding efficiency caused by high temperature are avoided, and the grinding efficiency and powder quality are improved.

[0024] 2、The filter powder box and the weighing sensor are provided, the storage of qualified powder is monitored in real time, automatic collection and metering of the powder are realized, in addition, the bag clamping assembly, the airflow pipe, the check valve and the filter core structure are provided, the powder can be smoothly unloaded, the dust generated by the falling powder is effectively reduced during the unloading of the powder, the cleanliness and safety of the working environment are improved, the backflow gas containing powder can be filtered by the filter core for secondary collection and returned to the filter powder box, and the waste nitrogen gas flowing out of the grinding device is discharged together with the gas in the filter powder box and the exhaust tower after treatment, the tediousness and error of manual operation are reduced, the environment is protected, and the health and safety of workers are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure perspective view of the present application of a high-performance insulating powder coating processing equipment and a method for using the same. Figure 2 It is a liquid nitrogen cooling assembly structure perspective view of the present application of a high-performance insulating powder coating processing equipment and a method for using the same. Figure 3 It is a filter powder box and support installation structure perspective view of the present application of a high-performance insulating powder coating processing equipment and a method for using the same. Figure 4 It is a filter powder box and filter bag part cut open first view structure perspective view of the present application of a high-performance insulating powder coating processing equipment and a method for using the same. Figure 5It is a second perspective view of the filter bag part of the powder filter box and the filter bag part of the high-performance insulating powder coating processing equipment and its use method according to the present application; Figure 6 It is a perspective view of the structure of the filter bag part of the powder filter box and the filter bag part of the high-performance insulating powder coating processing equipment and its use method according to the present application, which is cut open and the bag clamping assembly is in the clamping state; Figure 7 It is an enlarged perspective view of the structure at A of the high-performance insulating powder coating processing equipment and its use method according to the present application; Figure 8 It is a separated perspective view of the structure of the airflow pipe, the hose, the check valve and the filter element of the high-performance insulating powder coating processing equipment and its use method according to the present application.

[0026] In the figure: 1, bottom plate; 2, grinding device; 3, discharge tower; 4, liquid nitrogen cooling assembly; 401, heat preservation shell; 402, temperature sensor; 403, nitrogen inlet pipe; 404, nitrogen outlet pipe; 405, electromagnetic valve; 5, powder filter box; 6, filter bag; 7, support; 8, connecting plate; 9, weighing sensor; 10, feeding pipe; 11, bag clamping assembly; 1101, arc double lug plate; 1102, L-shaped rod; 1103, electric push rod; 1104, first U-shaped piece; 1105, second U-shaped piece; 12, feeding valve; 13, avoiding opening; 14, airflow pipe; 15, hose; 16, check valve; 17, filter element; 18, feeding pipe; 19, air outlet pipe; 20, three-way pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to the accompanying drawings Figures 1-8As shown, the present application provides a technical scheme: a kind of high-performance insulating powder coating processing equipment, including bottom plate 1 and respectively fixed on bottom plate 1 powder grinding equipment 2, discharge tower 3, the grinding chamber outer wall of powder grinding equipment 2 is thinner, and another liquid nitrogen cooling assembly 4 is provided, one side of powder grinding equipment 2 is provided with filter powder box 5, filter bag 6 is fixed in filter powder box 5, support 7 is fixed on the top of bottom plate 1, the top of support 7 is fixed with connecting plate 8, four weighing sensors 9 are fixed on the bottom of filter powder box 5, the bottom of four weighing sensors 9 is fixed on the top of connecting plate 8, the bottom of filter powder box 5 is fixed with the communication of discharge pipe 10, the bottom of connecting plate 8 is provided with bag clamping assembly 11 for clamping the bag mouth of material receiving bag, the top end of filter bag 6 is fixed in the top inner wall of filter powder box 5, and the bottom end of filter bag 6 is fixed with the top end of discharge pipe 10.

[0029] Example 1, according to Figure 1 And Figure 2 As shown, liquid nitrogen cooling assembly 4 includes heat preservation shell 401 fixed on the grinding chamber outer wall, temperature sensor 402 is fixed on the grinding chamber outer wall, and the detection needle of temperature sensor 402 is located in the grinding chamber; Liquid nitrogen cooling assembly 4 further includes nitrogen inlet pipe 403 and nitrogen outlet pipe 404 fixedly connected to the surface wall of heat preservation shell 401 respectively, and electromagnetic valve 405 is fixed on the surface of nitrogen inlet pipe 403 and nitrogen outlet pipe 404.

[0030] The effect achieved by the whole embodiment 1 is: by using the extremely low temperature of liquid nitrogen and the heat absorption characteristics of phase change, the temperature of the grinding chamber can be quickly reduced, so that the block material can be ground in a low temperature environment, and by using the real-time data fed back by temperature sensor 402, the system can automatically control the two electromagnetic valves 405, so that the cooling function can be frequency-controlled according to the actual temperature of the grinding chamber, and the exhaust of waste nitrogen.

[0031] Example 2, according to Figure 1 And Figures 3-7As shown, the bag clamping assembly 11 includes two arc-shaped double-ear plates 1101 symmetrically arranged at both sides of the bottom end of the downcomer 10, and each of the two arc-shaped double-ear plates 1101 is fixed with an L-shaped rod 1102; the bag clamping assembly 11 further includes an electric push rod 1103, the top end of each of the four L-shaped rods 1102 is rotatably connected with a first U-shaped piece 1104 through a pin shaft, and the top of each of the first U-shaped pieces 1104 is fixed to the bottom of the connecting plate 8; both ends of the electric push rod 1103 are rotatably connected with a second U-shaped piece 1105 through a pin shaft, and each of the two second U-shaped pieces 1105 is fixed with one of the L-shaped rods 1102 on the two arc-shaped double-ear plates 1101; the two arc-shaped double-ear plates 1101 are matched with the downcomer 10, the inner wall of each of the arc-shaped double-ear plates 1101 is fixed with a rubber pad, and both ends are respectively fixed with a pad block, when the arc-shaped double-ear plates 1101 are in close contact with the surface of the downcomer 10, the opposite pad blocks can be in contact, filling the gap between the arc-shaped double-ear plates 1101.

[0032] The effect achieved by the whole embodiment 2 is that the arc-shaped double-ear plates 1101 tightly close the bag opening of the collecting bag on the surface of the downcomer 10, so that the collecting bag is sealed, the dust raising during downflow is reduced, the cleanliness and safety of the working environment are improved, and the rubber pads and pad blocks of the arc-shaped double-ear plates 1101 are used to tightly press the bag opening on the downcomer 10 to avoid the bag opening from being pulled off during downflow.

[0033] Embodiment 3, according to Figures 1-8 As shown, the surface of the downcomer 10 is mounted with a downflow valve 12, the bottom end of the downcomer 10 penetrates through the bottom of the connecting plate 8, the middle part of the connecting plate 8 is provided with an avoiding opening 13, and the downcomer 10 and the downflow valve 12 are located in the avoiding opening 13; the surface of the downcomer 10 is fixedly communicated with an airflow pipe 14, the airflow pipe 14 is located below the downflow valve 12, one side wall of the filter box 5 is fixedly communicated with a hose 15 at the bottom end, the surface of the hose 15 is mounted with a check valve 16, and a filter core 17 is detachably installed between one end of the airflow pipe 14 and the bottom end of the hose 15; the filter bag 6 is a bucket shape with a large upper diameter and a small lower diameter, the top of the filter box 5 is fixedly communicated with a feeding pipe 18 for conveying powder into the filter bag 6, the feeding pipe 18 is fixedly communicated with the discharge port of the sorting cavity of the grinding equipment 2, and one side wall of the filter box 5 is fixedly communicated with an air outlet pipe 19; the air inlet of the discharge tower 3 is fixed with a three-way pipe 20, the other two ends of the three-way pipe 20 are respectively fixedly communicated with a nitrogen outlet pipe 404 and the air outlet pipe 19.

[0034] The effect achieved by the whole embodiment 3 is that the air flow pipe 14 can make the excess gas flow in the relatively sealed material receiving environment, effectively achieve the purpose of receiving material, the check valve 16 can only make the gas flow unidirectionally, so that the excess gas in the filter powder box 5 cannot flow into the working environment of the personnel through the hose 15 and the air flow pipe 14, the detachable filter element 17 can facilitate the personnel to clean and replace it, the waste nitrogen and the waste gas in the filter powder box 5 will be discharged from the nitrogen outlet pipe 404 and the gas outlet pipe 19, and then be sent to the discharge tower 3 for harmless treatment and discharge, the harmful components in the waste gas are filtered out, and environmental pollution is avoided.

[0035] The complete working principle of the device is that in the preparation stage, the peripheral numerical control device imports the related data into the related modules of the electrical control device for storage, which are the temperature range of the grinding chamber of the grinding device 2, the mass of the powder storage in the filter powder box 5 when the powder storage is the lowest and the highest, and the single time discharging duration of the filter powder box 5 corresponding to the specification of the material receiving bag.

[0036] When the device starts to work, the temperature sensor 402 and the weighing sensor 9 act in time, the temperature sensor 402 detects the temperature in the grinding chamber, and the weighing sensor 9 detects the weight of the filter powder box 5, and the data are transmitted to the numerical control system in real time for real-time monitoring, analysis, and display on the display. If the temperature in the grinding chamber does not exceed the set maximum standard, the liquid nitrogen cooling assembly 4 does not need to be started, otherwise, the system sends an instruction to the electromagnetic valve 405 on the nitrogen inlet pipe 403, so that the electromagnetic valve 405 is opened, and the nitrogen in the nitrogen storage tank connected to the other end can enter the cavity between the heat preservation shell 401 and the grinding chamber through the nitrogen inlet pipe 403. Through the temperature of the nitrogen base and the characteristics of phase change heat absorption, the hot gas in the grinding chamber can be quickly exchanged, so that the temperature in the grinding chamber is efficiently and quickly reduced. The numerical control system can automatically control the two electromagnetic valves 405 according to the data transmitted by the temperature sensor 402 in real time, so as to realize the frequency regulation control of the cooling function according to the actual situation and the discharge function of the nitrogen waste gas.

[0037] The ground powder in the grinding chamber is carried upward by the airflow in the grinding device 2 and enters the sorting chamber for screening. The qualified powder is discharged from the grinding device 2 along with the gas through the feeding pipe 18 and enters the filter box 5. The filter bag 6 filters the gas containing the powder, and the qualified powder is collected in the filter bag 6. The excess gas is discharged from the filter bag 6 and enters the exhaust tower 3 through the gas outlet pipe 19. When the system detects that the powder storage in the filter box 5 reaches the maximum value through the weighing sensor 9, a discharging prompt is immediately sent to the terminal of the worker. Then, the worker puts the bag opening of the collecting bag on the lower end of the discharging pipe 10, folds the bag opening on the surface of the discharging pipe 10, and starts the bag clamping assembly 11 to clamp the bag. The output end of the electric push rod 1103 retracts, which drives the L-shaped rods 1102 on both sides to rotate in the bottom box of the connecting plate 8, so that the arc-shaped double-ear plates 1101 move towards the middle. When the arc-shaped double-ear plates 1101 tightly press the bag opening on the surface of the discharging pipe 10, the worker starts the discharging program, and the system sends a discharging instruction to the discharging valve 12 to open the discharging valve 12 for a certain time. When the set time is reached, the discharging valve 12 automatically closes, and the single discharging is completed. When the discharging pipe 10 is filled with the collecting bag, the air in the collecting bag flows upward, carrying a part of the powder to flow upward. At this time, the backflow gas containing the powder flows out of the discharging pipe 10 through the airflow pipe 14, so that the powder can be effectively filled into the collecting bag. This part of the gas containing the powder is filtered by the filter element 17, and then is transported to the filter box 5 through the soft pipe 15 and the check valve 16, and is discharged from the gas outlet pipe 19 along with the gas in the filter box 5. When the powder storage in the filter bag 6 reaches the minimum standard, the electrical control device suspends the use of the discharging function to enable the powder to be filled into the bag at one time as much as possible, so as to avoid dust caused by repeated bagging.

[0038] The waste nitrogen and the waste gas in the filter box 5 are separately sent to the exhaust tower 3 for harmless treatment and discharge.

[0039] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features, as long as the modifications, equivalent replacements, improvements, etc. are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present application.

Claims

1. A high performance insulation powder coating processing apparatus comprising: The bottom plate (1) and the grinding device (2) and the discharge tower (3) fixed on the bottom plate (1) respectively, characterized by: the grinding chamber outer wall of the grinding device (2) is thin, and a liquid nitrogen cooling assembly (4) is further arranged, one side of the grinding device (2) is provided with a filter box (5), the filter box (5) is fixedly provided with a filter bag (6) inside, the top of the bottom plate (1) is fixedly provided with a support (7), the top of the support (7) is fixedly provided with a connecting plate (8), the bottom of the filter box (5) is fixedly provided with four weighing sensors (9) in a symmetrical manner, the bottom of the four weighing sensors (9) is fixedly arranged on the top of the connecting plate (8), the bottom of the filter box (5) is fixedly and communicatively provided with a discharge pipe (10), the bottom of the connecting plate (8) is provided with a bag clamping assembly (11) for clamping the bag opening of a collecting bag, the top end of the filter bag (6) is fixedly arranged on the inner wall of the top of the filter box (5), and the bottom end of the filter bag (6) is fixedly arranged with the top end of the discharge pipe (10); The liquid nitrogen cooling assembly (4) comprises a heat preservation shell (401) fixed on the grinding chamber outer wall, and a temperature sensor (402) fixed on the grinding chamber outer wall, wherein the detection needle of the temperature sensor (402) is located in the grinding chamber. The bag clamping assembly (11) comprises two arc-shaped double lug plates (1101) symmetrically arranged at the bottom end of the discharge pipe (10), and two L-shaped rods (1102) are fixedly arranged on the two sides of the two arc-shaped double lug plates (1101).

2. A high performance insulating powder coating processing apparatus as claimed in claim 1, wherein: The liquid nitrogen cooling assembly (4) further comprises a nitrogen inlet pipe (403) and a nitrogen outlet pipe (404) fixedly and communicatively arranged on the surface wall of the heat preservation shell (401), and an electromagnetic valve (405) is fixedly arranged on the surface of the nitrogen inlet pipe (403) and the nitrogen outlet pipe (404).

3. A high performance, insulating, powder coating processing apparatus as defined in claim 2, wherein: The bag clamping assembly (11) further comprises an electric push rod (1103), and a first U-shaped piece (1104) is rotatably connected to the top end of each of the four L-shaped rods (1102) through a pin shaft, and the top of the first U-shaped piece (1104) is fixedly arranged on the bottom of the connecting plate (8).

4. A high performance, insulating, powder coating processing apparatus as defined in claim 3, wherein: Both ends of the electric push rod (1103) are rotatably connected to a second U-shaped piece (1105) through a pin shaft, and the second U-shaped piece (1105) is fixedly arranged with one of the L-shaped rods (1102) on the two arc-shaped double lug plates (1101).

5. A high performance, insulating, powder coating processing apparatus as defined in claim 4, wherein: The two arc-shaped double lug plates (1101) are matched with the discharge pipe (10), the inner wall of the arc-shaped double lug plate (1101) is fixedly provided with a rubber pad, and the two ends are respectively fixedly provided with a pad block, when the arc-shaped double lug plate (1101) is in close contact with the surface of the discharge pipe (10), the two pad blocks can be in contact, and the gap between the arc-shaped double lug plates (1101) is filled.

6. A high performance, insulating, powder coating processing apparatus as defined in claim 5, wherein: The surface of the discharge pipe (10) is provided with a discharge valve (12), and the bottom end of the discharge pipe (10) penetrates through the bottom of the connecting plate (8), the middle part of the connecting plate (8) is provided with an avoiding opening (13), and the discharge pipe (10) and the discharge valve (12) are located in the avoiding opening (13).

7. A high performance, insulating, powder coating processing apparatus as defined in claim 6, wherein: The surface of the blanking pipe (10) is fixedly communicated with an airflow pipe (14), the airflow pipe (14) is located below the blanking valve (12), one side wall bottom end of the filter box (5) is fixedly communicated with a hose (15), the surface of the hose (15) is mounted with a check valve (16), and the filter core (17) is detachably installed between one end of the airflow pipe (14) and the bottom end of the hose (15).

8. A high performance, insulating, powder coating processing apparatus as defined in claim 7, wherein: The filter bag (6) is a bucket shape with a large upper diameter and a small lower diameter, the top of the filter box (5) is fixedly communicated with a feeding pipe (18) for conveying powder into the filter bag (6), the feeding pipe (18) is fixedly communicated with a discharge port of the grinding device (2) sorting chamber, and one side wall of the filter box (5) is fixedly communicated with an air outlet pipe (19).

9. A high performance, insulating, powder coating processing apparatus as defined in claim 8, wherein: The air inlet of the discharge tower (3) is fixedly communicated with a three-way pipe (20), and the other two ends of the three-way pipe (20) are respectively fixedly communicated with a nitrogen outlet pipe (404) and the air outlet pipe (19).

10. A method of use for a high performance insulation powder coating processing apparatus, characterized by: The high-performance insulating powder coating processing device of claim 9 is used, including the following steps: S1: initially, the data of each electrical device is introduced into the relevant module of the electrical control device, including the grinding chamber temperature threshold value of the grinding device (2), the maximum powder storage value of the filter box (5), and the single opening time of the blanking valve (12) when the powder is discharged, which is mainly used for subsequent identification and review of the device; S2: the liquid nitrogen cooling assembly (4) utilizes its extremely low temperature and phase change endothermic characteristics to achieve efficient and rapid cooling, reduces the temperature of the grinding chamber, enables the blocky material to be ground into powder in a low-temperature environment, and can monitor the temperature in the grinding chamber in real time. The data is shared with the relevant module of the electrical control device, compared with the temperature threshold value, and then the measured temperature is quickly reviewed to see whether it meets the operating standard, and the flow of nitrogen is adjusted in a timely manner to maintain the low-temperature environment in the grinding chamber; S3: the ground powder in the grinding chamber will be upward along with the airflow in the grinding device (2) and enter the sorting chamber for screening. The qualified powder will enter the filter box (5) along with the gas from the feeding pipe (18), and the powder in the airflow will be retained in the filter bag (6) for collection. The excess gas will be discharged from the filter box (5) through the air outlet pipe (19); S4: the weighing sensor (9) monitors the powder storage in the filter box (5) in real time, and the data is shared with the relevant module of the electrical control device. After comparison with the standard data, it is quickly reviewed whether the powder storage in the filter box (5) meets the maximum storage standard. If the result is correct, a discharging prompt is sent to the corresponding staff, the powder in the filter bag (6) is single-discharged and bagged according to the set quality, otherwise the discharging prompt is not triggered; S5: during the blanking, the bag clamping assembly (11) clamps the bag opening of the receiving bag on the blanking pipe (10), reduces the dust generated by the falling of the powder, and the excess gas in the receiving bag goes upward, passes through the secondary filtration of the airflow pipe (14) and the filter core (17), and then returns to the filter box (5) after the overflow powder is filtered out, and is discharged together with the gas in the filter box (5). S6: The excess gas in the powder filter box (5), the backflow gas during powder discharging and bagging, and the used nitrogen gas will all be transported to the exhaust tower (3) for separate exhaust, so that the exhaust gas can be discharged in compliance with the regulations.

Citation Information

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