Low-temperature pressurization noise reduction equipment

Abstract

A noise reduction cover is arranged at the upper end of a cylinder, a damping base is arranged at the lower end of the cylinder, a sound insulation cover is arranged on the outer side of the cylinder, a sound insulation pipe is arranged on the inner wall of the cylinder, is of a multi-layer noise reduction structure and comprises sound absorption materials, a foam layer and a sound insulation structure. The isolation pipe is arranged in the grinding machine cylinder, the noise generated by the grinding machine is absorbed by the sound absorption material and the foam layer of the isolation pipe, and the noise generated by collision between a grinding object and the inner wall of the grinding machine cylinder is reduced by arranging the noise reduction strip. And multiple noise reduction effects are achieved from inside to outside at the same time, so that noise is reduced from the source. The low-temperature pressurization noise reduction equipment further comprises a pressure sensor, a pressure regulating valve and a vacuum pump. The pressure sensor monitors the pressure value in the grinding cavity in real time and feeds back a signal to the control system. When the pressure deviates from a set value, the pressure regulating valve is automatically opened and closed, and the stability and safety of a high-pressure environment are ensured by regulating the pressure in the cavity through the vacuum pump.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grinding equipment, especially relates to a low-temperature pressure-increasing noise reduction equipment. BACKGROUND

[0002] In recent years, people have gradually realized the benefits of coarse cereals, in order to maximize the nutritional value and users can easily take coarse cereals, the food industry now produces special processing of coarse cereals, grinding into powder or grinding into small particles, easy to intake, flush with water, but now the production of grinding coarse cereals in the machine, the noise of the grinding machine running and rubbing with the sample material is very large, which will cause noise pollution to the operating workshop and surrounding residents, in addition, the machine runs in the process of grinding, resulting in high temperature, so there is room for improvement.

[0003] Therefore, there is an urgent need for a grinding machine noise reduction pipe that effectively reduces noise and has good cooling effect. UTILITY MODEL CONTENTS

[0004] To overcome the technical problems in the prior art, the utility model provides a grinding machine noise reduction pipe which is simple in structure, convenient to use, can efficiently reduce noise and cool down.

[0005] To achieve the above technical purposes, the utility model adopts the following technical scheme:

[0006] A low-temperature pressure-increasing noise reduction equipment, including cylinder, motor, cutter assembly, support leg, sound insulation pipe. The upper end of the cylinder is provided with a noise reduction cover, and the motor is arranged at the lower end of the inner side of the cylinder. One side of the motor is provided with a cutter assembly, and the motor drives the cutter assembly to rotate and work through a rotating shaft. The motor is fixedly connected with the base, the upper end of the base is provided with the cylinder, and the lower end of the base is provided with a support leg. The base is a damping base including a rubber damping pad and a spring shock absorber, which can effectively reduce the noise transmission caused by vibration during equipment operation. The rubber damping pad is arranged below the lower support leg, and the spring shock absorber is arranged at the middle end of the surrounding support leg. The lower support leg is placed above the rubber damping pad. The lower support leg includes four energy-absorbing legs, and the four corners of the base are provided with the energy-absorbing legs.

[0007] Further, the inner wall of the cylinder is provided with a sound insulation pipe, and the sound insulation pipe is a multi-layer noise reduction structure including sound-absorbing material, foam layer and sound insulation structure.

[0008] Further, the sound-absorbing material is sound-absorbing wool one, which is arranged on one side of the inner wall of the sound insulation pipe, and the sound insulation pipe and the inner wall of the cylinder form a sound-absorbing gap. The foam layer is a polyurethane foam layer, which is arranged on the inner wall of the sound-absorbing wool one.

[0009] Further, the sound insulation structure comprises a noise reduction strip fixedly arranged on the inner side wall of the polyurethane foam layer, and the noise reduction strips are uniformly arranged on the inner wall of the polyurethane foam layer.

[0010] Further, the surface of the noise reduction strip is provided with sound absorption holes, and the sound absorption holes are provided with a plurality of sound absorption holes on the noise reduction strip, and the sound absorption holes are provided as threaded sound absorption holes.

[0011] Further, the noise reduction cover is provided with a sealing rubber ring close to the lower end of the cylinder, the noise reduction cover is closed on the cylinder, the sealing rubber ring is clamped and connected with the cylinder, and the inner wall of the bottom of the noise reduction cover is provided with sound absorption material.

[0012] Further, the protruding part at the symmetrical position of the two sides of the cylinder is provided with a cooling assembly. The cooling assembly comprises a temperature monitor and a cooling fan. The temperature monitor is arranged at the front end of the cooling fan, and the temperature monitor is electrically connected with the cooling fan. When the temperature inside the cylinder reaches the set temperature, the cooling fan operates to release cold air, so as to reduce the internal environment temperature. The cold air flows along the inner wall of the cylinder.

[0013] Further, the inside of the cylinder further comprises a pressure adjusting device comprising a pressure sensor, a pressure regulating valve and a vacuum pump and the like. The pressure sensor monitors the pressure value in the grinding cavity in real time, and feeds back the signal to the control system. When the pressure deviates from the set value, the pressure regulating valve is automatically opened or closed, and the pressure in the cavity is adjusted by the vacuum pump or the air inlet valve, so as to ensure the stability and safety of the high-pressure environment.

[0014] Further, the isolation pipe and the cylinder are detachably connected, and the isolation pipe is bonded to the inner wall of the cylinder. The isolation pipe is provided with a first sound insulation pipe and a second sound insulation pipe symmetrically arranged on one side of the first sound insulation pipe. The first sound insulation pipe is provided with clamping plates on both sides, and the second sound insulation pipe is provided with clamping grooves on both sides. The first sound insulation pipe clamping plate and the second sound insulation pipe clamping groove are clamped and connected.

[0015] Further, the outer wall of the cylinder is provided with a sound insulation cover, and the sound insulation cover is made of multiple layers of sound insulation material. From the outside to the inside, the outer layer is a metal plate, the middle layer is sound absorption cotton, and the inner layer is a damping sound insulation layer. The sound insulation cover is arranged outside the cylinder, and the sound insulation cover can effectively block the noise generated in the grinding process from spreading outward, and can reduce the noise by 20-30 decibels.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By arranging the isolation pipe in the grinding machine cylinder, the sound absorption material and the foam layer of the isolation pipe can absorb the noise generated by the high-speed operation of the grinding machine, and by arranging the noise reduction strip, the noise generated by the impact of the grinding material on the inner wall of the grinding machine cylinder can be reduced, thereby realizing the reduction of noise from the source and achieving the effect of noise reduction.

[0018] By setting the sound-absorbing layer on the inner wall of the noise reduction cover bottom and setting the damping base, the rubber damping pad and the spring damper, the noise caused by the friction between the cutter and the sample material during the operation of the grinder is greatly reduced, meanwhile, the sound insulation cover body is arranged on the outer surface of the barrel, and a plurality of sound insulation materials are further arranged on the sound insulation cover body, so that the noise transmission caused by vibration during the operation of the equipment is effectively reduced, the stability of the grinder is improved under the premise of ensuring the noise reduction effect, and the vibration amplitude and noise transmission of the grinder are reduced.

[0019] By setting the cooling fan, when the temperature in the barrel reaches the set temperature, the cooling fan operates to release cold air, so that the internal environment temperature is reduced, and the cold air temperature can be adjusted to ensure the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic view of the utility model.

[0021] Fig. 2 It is a sectional view of the multi-layer structure of the isolation pipe.

[0022] Fig. 3 It is a left-right dismounting schematic view of the isolation pipe.

[0023] In the drawing, the barrel is 1, the motor is 2, the cutter assembly is 3, the supporting leg is 4, the noise reduction cover is 5, the sound insulation pipe is 6, the cooling assembly is 7, the sound insulation cover body is 8, the sound-absorbing cotton I is 61, the polyurethane foam layer is 62, the noise reduction strip is 63, the first sound insulation pipe is 64, the second sound insulation pipe is 65, and the sound-absorbing cotton II is 81. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings obtained according to these drawings without creative labor also belong to the protection range of the utility model.

[0025] As Figs. 1-3As shown, a low-temperature pressurized noise reduction device includes a cylinder body 1, a motor 2, a support leg 4, a cutter assembly 3, and a sound insulation pipe 6. The cylinder body 1 is a high-pressure low-temperature abrasive cavity made of pressure-resistant and low-temperature-resistant materials. The internal structure is designed as a sealed space that can withstand a certain pressure and maintain a low-temperature environment. During the grinding process, the cavity is kept in a high-pressure low-temperature state by external refrigeration and pressure regulation devices, which helps to break down the fruit skin more efficiently without damaging the nutritional ingredients of the grains. For example, the temperature in the cavity can be stabilized between -10°C and 5°C, and the pressure can be controlled within the range of 2-5 atmospheres. The cutter assembly 3 is made of high-strength alloy steel materials. The special shape and arrangement of the cutter have sharp cutting edges and good wear resistance. Under the drive of the motor, the cutter can rotate at high speed to strongly crush and grind the grain skin entering the grinding cavity. For example, the speed of the cutter can be adjusted between 1000-3000 revolutions per minute according to the characteristics of different grain skins to ensure precise control of the grinding effect. The upper end of the cylinder body 1 is provided with a noise reduction cover 5. The noise reduction cover 5 is arranged on the cylinder body 1. The inner wall of the bottom of the noise reduction cover 5 is provided with sound-absorbing materials. One end of the noise reduction cover 5 is provided with a connecting piece connected with the cylinder body for opening and closing one end of the noise reduction cover 5. When opened, the noise reduction cover 5 is used for feeding materials by the material conveying device. When closed, the noise reduction cover 5 reduces the noise during the operation of the abrasive machine, makes up for the vacancy above the sound insulation pipe 6, interacts with the sound insulation pipe 6, and increases the noise absorption effect. The material conveying device is connected with a grain raw material storage bin. The spiral or pneumatic conveying method is adopted to stably and uniformly convey the grain skin into the grinding cavity, ensuring the continuity and stability of the grinding process. The conveying amount can be accurately adjusted according to the overall processing capacity of the device. The noise reduction cover 5 near the lower end of the cylinder body 1 is provided with a sealing rubber ring. When closed, the sealing rubber ring tightly fits on the upper end of the cylinder body, playing a more sealing, noise reduction, and stable role between the noise reduction cover and the cylinder body. The sealing rubber ring is clamped and connected with the cylinder body 1. The motor 2 is arranged inside the lower end of the cylinder body 1. One side of the motor 2 near one end of the cylinder body 1 is provided with the cutter assembly 3. The motor 2 drives the cutter assembly 3 to rotate and work through the rotating shaft. The motor 2 is fixedly connected with the base and located inside the base. The upper end of the base is provided with the cylinder body 1. The base is a damping base including rubber damping pads and spring dampers, which can effectively reduce the noise transmission caused by vibration during the operation of the device. The rubber damping pads are arranged below the lower bottom support legs, and the spring dampers are arranged around the middle positions of the support legs. The lower bottom support legs are placed above the rubber damping pads. The lower bottom support legs include four energy-absorbing legs. The four corners of the base are provided with the energy-absorbing legs. The energy-absorbing legs are made of rubber materials and are placed on the rubber damping pads to tightly absorb and clamp each other. Through the energy-absorbing legs, the rubber damping pads are tightly clamped, the horizontal and vertical forces generated during the operation of the machine are dispersed, the vibration friction is reduced, and the noise is reduced. The inner wall of the cylinder body 1 is provided with the sound insulation pipe 6. The sound insulation pipe 6 has a multi-layer noise reduction structure including sound-absorbing materials, foam layers, and sound insulation structures.In the process of grinding, a large noise will be generated, in order to provide a quiet working environment, a sound insulation pipe is arranged, the sound insulation pipe is a multi-layer noise reduction structure, the noise reduction capacity of a single layer is limited, therefore, the sound is re-absorbed by the multi-layer noise reduction structure to meet the sound decibel condition. Preferably, the sound-absorbing material is sound-absorbing cotton 61 or sound-absorbing blanket, the sound-absorbing cotton 61 is arranged on one side of the inner wall of the sound insulation pipe 6, the sound-absorbing cotton 61 is fixedly bonded to the inner wall of the sound insulation pipe 6, and the gap between the outer wall of the sound insulation pipe 6 and the inner wall of the cylinder 1 is matched and forms a sound-absorbing gap. During work, the noise generated by the grinding machine in the cylinder will enter the sound-absorbing gap through the sound-absorbing hole, and then be dispersed to each part of the sound-absorbing cotton 61 through the sound-absorbing gap. The foam layer is a polyurethane foam layer 62 arranged on the inner side wall of the sound-absorbing cotton 61. The sound insulation structure includes a noise reduction strip 63 fixedly arranged on the inner side wall of the polyurethane foam layer 62. The noise reduction strip 63 is uniformly arranged on the inner wall of the polyurethane foam layer 62. The noise reduction strip 63 is made of silica gel or plastic material, which can block the impact of objects on the inner wall of the grinding machine, thereby reducing the noise generated by the impact of objects on the inner wall of the grinding machine, and absorbing the remaining noise through the polyurethane foam layer 62 and the sound-absorbing cotton 61, thereby enhancing the noise reduction effect. Preferably, a sound-absorbing hole is formed in the surface of the noise reduction strip 63. The sound-absorbing hole is provided with a plurality of sound-absorbing holes. The sound-absorbing hole is provided with a threaded sound-absorbing hole to increase the sound-absorbing effect.

[0026] Preferably, an intelligent control interface and an automatic control program are also arranged. A touch display screen is provided, and the operator can intuitively set various operating parameters of the equipment, such as grinding time, tool speed, refrigeration temperature, pressure value, etc. through the interface. At the same time, the display screen can display the running state of the equipment in real time, including temperature, pressure, motor speed, material conveying amount, etc. information, which is convenient for the operator to monitor and adjust. An advanced PLC control system is built in, which automatically controls the start, stop, material conveying, refrigeration, pressure adjustment and grinding of the equipment according to the preset processing process parameters. For example, when the material conveying amount changes, the PLC system can automatically adjust the tool speed and refrigeration power to ensure the stability of the grinding effect and the low-temperature environment. In addition, the control system also has fault diagnosis and alarm functions. Once the equipment has abnormal conditions, such as high temperature, abnormal pressure, motor failure, etc., the system can timely send out alarm and display fault information, which is convenient for maintenance personnel to quickly locate and eliminate faults. Embodiment

[0027] As Figs. 1-3As shown, in order to further enhance the noise reduction effect, the outer wall of the barrel 1 is provided with a soundproof cover 8, the soundproof cover 8 is provided with multiple layers of soundproof material, from outside to inside, the outer layer is a metal plate, the middle is provided with two sound-absorbing cotton, and the inner layer is a damping sound insulation layer. The soundproof cover is arranged outside the barrel, and the soundproof cover can effectively block the noise generated during the grinding process from spreading outward, and can reduce the noise by 20-30 decibels. Preferably, the soundproof cover 8 is detachably connected with the barrel, and is arranged on the outer surface of the barrel 1 by adhesion, support or other detachable manner, which is convenient for use, removal and replacement.

[0028] Further, the barrel 1 is provided with a protruding portion at a symmetrical position on both sides, and a cooling assembly 7 is arranged in the groove of the protruding portion. The cooling assembly 7 includes a temperature monitor 71 and a cooling fan 72. The temperature monitor 71 is arranged at the front end of the cooling fan 72, and the temperature monitor 71 is electrically connected with the cooling fan 72. When the internal temperature of the barrel 1 reaches the set temperature, the temperature monitor 71 sends a command to drive the cooling fan 72 to operate to release cold air. The cold air passes through the air holes and flows up and down along the inner wall of the barrel 1, so as to reduce the internal temperature. When the internal temperature reaches the set temperature, the cooling fan stops running.

[0029] Preferably, the isolation pipe 6 is detachably connected with the barrel, and the isolation pipe is adhered to the inner wall of the barrel. This arrangement facilitates later maintenance and replacement. The isolation pipe 6 is provided with a first soundproof pipe 64 and a second soundproof pipe 65 symmetrically arranged on one side of the first soundproof pipe 64. The first soundproof pipe 64 is provided with clamping plates on both sides, and the second soundproof pipe 65 is provided with clamping grooves on both sides. The clamping plates of the first soundproof pipe 64 and the clamping grooves of the second soundproof pipe 65 are clamped and connected. Through the arrangement, the first soundproof pipe 64 and the second soundproof pipe 65 can be detachably connected and maintained and replaced according to the use condition. At the same time, the stability of the connection between the first soundproof pipe 64 and the second soundproof pipe 65 can be effectively improved.

[0030] Working principle: start the motor, drive the grinding tool assembly high-speed rotation, strong grinding on the grain peel. In the process of grinding, the sound insulation cover blocks the noise from spreading outside, the multilayer noise reduction structure of the sound insulation pipe absorbs the internal reflected noise, the noise reduction and damping base reduces the vibration noise, and at the same time plays a role to achieve multiple noise reduction effect. When using the grinding machine, the noise generated by the grinding machine in the cylinder is first blocked by the noise reduction strip to reduce the noise generated by the object hitting the inner wall of the grinding machine, secondly, the remaining noise is absorbed by the foam layer and the sound absorbing material to enhance the noise reduction effect. Finally, sound absorption holes are formed on the surface of the noise reduction strip, the noise will enter the sound absorption gap through the sound absorption holes, and then be dispersed to the sound absorption cotton and the foam layer. Then, the noise will be absorbed by the sound absorption cotton and the foam layer. The technical scheme can achieve multiple noise reduction no matter where the noise goes. When the noise reflects in these spaces, the multilayer noise reduction structure of the sound insulation pipe can quickly absorb the sound wave energy, reduce the echo and superposition of the noise in the equipment, and further reduce the noise intensity.

Claims

1. A low-temperature pressurization and noise reduction device, comprising a cylinder (1), a motor (2), a cutter assembly (3), and a support leg (4), wherein the motor (2) is fixedly connected to a base, the upper end of the base is provided with the cylinder (1), and the lower end of the base is provided with a support leg (4), the motor (2) is located at the lower end of the inner side of the cylinder (1), and a cutter assembly (3) is provided on one side of the motor (2), the motor (2) drives the cutter assembly (3) to rotate through a rotating shaft, characterized in that: The inner wall of the cylinder is provided with a sound insulation tube (6), which is a multi-layer noise reduction structure, including sound-absorbing material, foam layer and sound insulation structure.

2. A cryogenic supercharging noise reducing device according to claim 1, characterized in that: The sound-absorbing material is sound-absorbing cotton (61), which is placed on one side of the inner wall of the sound insulation pipe (6), and a sound-absorbing gap is formed between the sound insulation pipe (6) and the inner wall of the cylinder (1); the foam layer is a polyurethane foam layer (62), which is placed on the inner wall of the sound-absorbing cotton (61); the sound insulation structure is a noise-reducing strip (63) fixedly placed on the inner wall of the polyurethane foam layer (62), and the noise-reducing strip (63) is evenly placed on the inner wall of the polyurethane foam layer (62).

3. A cryogenic supercharging noise reducing device according to claim 2, characterized in that: The noise reduction strip (63) has sound-absorbing holes on its surface. Several sound-absorbing holes are provided on the noise reduction strip (63), and the sound-absorbing holes are configured as threaded sound-absorbing holes.

4. A cryogenic supercharging noise reducing device according to claim 1, characterized in that: The upper end of the cylinder (1) is fitted with a noise reduction cover (5). The lower end of the noise reduction cover (5) near the cylinder (1) is provided with a sealing rubber ring. The sealing rubber ring is clamped and connected to the cylinder. The bottom inner wall of the noise reduction cover is provided with sound-absorbing material.

5. A cryogenic supercharging noise reducing device according to claim 1, characterized in that: The sound insulation tube (6) and the cylinder (1) are detachably connected. The isolation tube (6) is bonded to the inner wall of the cylinder. The isolation tube (6) includes a first sound insulation tube (64) and a second sound insulation tube (65) symmetrically arranged on one side of the first sound insulation tube (64). The first sound insulation tube and the second sound insulation tube are detachably connected. The first sound insulation tube (64) has a retaining plate on both sides and the second sound insulation tube (65) has a retaining groove on both sides. The retaining plate of the first sound insulation tube (64) and the retaining groove of the second sound insulation tube (65) are clamped together.

6. A cryogenic supercharging noise reducing device according to claim 1, characterized in that: The outer side of the cylinder (1) is provided with a soundproof cover (8), which is made of multiple layers of soundproof material, from the outside to the inside, the outer layer is a metal plate, the middle layer is sound-absorbing cotton, and the inner layer is a damping soundproof layer.

7. A cryogenic supercharging noise reducing device according to any one of claims 1-6, characterized in that: Cooling components (7) are installed inside the symmetrical protrusions on both sides of the cylinder (1). The cooling components (7) include a temperature monitor (71) and a cooling fan (72). The temperature monitor (71) is located at the front end of the cooling fan (72). The temperature monitor (71) is electrically connected to the cooling fan (72). When the internal temperature of the cylinder (1) reaches the set temperature, the cooling fan (72) runs and releases cold air. The cold air flows up and down along the inner wall of the cylinder (1).

8. A cryogenic supercharging noise reducing device according to claim 7, characterized in that: The base is a shock-absorbing base comprising: a rubber shock-absorbing pad and a spring shock absorber. The rubber shock-absorbing pad is located below the lower support leg, and the support leg is placed above the rubber shock-absorbing pad. The spring shock absorber is located at the middle position surrounding the support leg. The support leg includes four energy-absorbing feet, and the energy-absorbing feet are provided at the four bottom corners of the base.

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