Flaky phenolic resin crushing device

Abstract

The utility model belongs to the technical field of common crushing, grinding or smashing, and particularly relates to a flaky phenolic resin smashing device which comprises a smashing machine, a main motor and a classifier motor, a rotary hammer head connected with the main motor and a classifier connected with the classifier motor are arranged in the smashing machine, and a dry air inlet pipe is arranged on the smashing machine. The dry air inlet pipe is connected with the dryer, the pulverizer is provided with a discharging pipe, the discharging pipe is arranged above the dry air inlet pipe, and the pulverizer is connected with the stock bin through the material conveying device. External dry air is introduced into the pulverizer through the dry air inlet pipe, and it is guaranteed that the interior of the pulverizer is in a dry state; the problem that pulverized powdery phenolic resin is caked is avoided, and meanwhile it is guaranteed that the powdery phenolic resin in the pulverizer can enter the discharging pipe and enter the powdery phenolic resin storage tank along the discharging pipe.

Description

Technical Field

[0001] This application belongs to the technical field of general crushing, grinding or pulverizing, and particularly relates to a crushing device for flake phenolic resin. Background Art

[0002] The phenolic resin produced by the factory is in the form of powder with a mesh size of 200 - 300. After preliminary production, the phenolic resin formed by a granulator or an extruder is in flake form and needs to be crushed and pulverized into powder form by a pulverizer. In this process, the following problems need to be noted:

[0003] 1. The inside of the pulverizer forms powdered phenolic resin. It is necessary to ensure that the pulverized powdered phenolic resin flows out quickly from the discharge pipe to avoid the reflux of powdered phenolic resin into the bin for storing flake phenolic resin or leakage to the outside.

[0004] 2. Due to the fine powder of the powdered phenolic resin inside the pulverizer, it is easily affected by the outside world, resulting in caking of the powdered phenolic resin, which affects the transportation of the powdered phenolic resin along the discharge pipe into the storage tank and also affects the storage of the powdered phenolic resin.

[0005] 3. After the powdered phenolic resin in the pulverizer is pulverized, it is necessary to timely convey flake phenolic resin into the pulverizer. After the powdered phenolic resin in the pulverizer reaches a certain quantity or quality, the conveyance of flake phenolic resin should be timely disconnected. Utility Model Content

[0006] To solve the above problems, this application provides a crushing device for flake phenolic resin.

[0007] The purpose of this application is to provide a crushing device for flake phenolic resin. In this application, external dry air is introduced into the pulverizer through a dry air inlet pipe to ensure that the inside of the pulverizer is in a dry state, avoiding problems such as caking of the pulverized powdered phenolic resin.

[0008] To achieve the purpose of this application, the technical solution of this application is as follows:

[0009] A crushing device for flake phenolic resin includes a pulverizer, a main motor, and a classifier motor. Inside the pulverizer, there is a rotating hammer head connected to the main motor and a classifier connected to the classifier motor. The pulverizer is provided with a dry air inlet pipe, and the dry air inlet pipe is connected to a dryer. The pulverizer is provided with a discharge pipe, and the discharge pipe is arranged above the dry air inlet pipe. The pulverizer is connected to a bin through a feeding device.

[0010] Further, the pulverizer is provided with a common air inlet pipe and a filter air inlet.

[0011] Furthermore, a discharge port is provided at the lower end of the silo. The material conveying device includes a buffer bin which is arranged on the discharge port. A screw conveyor is provided at the end of the buffer bin, and a blanking pipe is provided at the end of the screw conveyor. The blanking pipe is connected to the pulverizer.

[0012] Furthermore, a screw shaft is arranged inside the screw conveyor, and the feeder motor is connected to the screw shaft through a transmission mechanism.

[0013] Furthermore, one end of the screw shaft protrudes from the shell of the screw conveyor. Either a belt pulley or a sprocket is arranged on the screw shaft protruding from the shell, and the transmission mechanism is a corresponding belt or chain.

[0014] Furthermore, the main motor and the pulverizer are arranged on the bottom bracket.

[0015] Furthermore, a support frame is arranged on the bottom bracket, and a speed reducer is arranged on the support frame. The input shaft of the speed reducer is connected to the output shaft of the feeder motor, and the output shaft of the speed reducer is connected to the transmission mechanism.

[0016] Furthermore, a hinge seat is arranged on the bottom bracket, and a hydraulic cylinder is hinged on the hinge seat. A sealing cover is arranged on the pulverizer, a support arm is arranged on the sealing cover, a rocker arm is hinged at one end of the support arm away from the sealing cover, and the push rod of the hydraulic cylinder is hinged to the rocker arm.

[0017] Furthermore, the buffer bin includes a conical bin body, and a flow guide plate is arranged inside the conical bin body.

[0018] Furthermore, a pressure gauge is arranged on the pulverizer.

[0019] Compared with the prior art, the beneficial effects of this application are as follows:

[0020] 1. In this application, the external drying air is introduced into the pulverizer through the drying air inlet pipe to ensure that the inside of the pulverizer is in a dry state, avoiding problems such as caking of the pulverized phenolic resin powder. At the same time, it ensures that the powdered phenolic resin in the pulverizer can enter the discharge pipe and flow along the discharge pipe into the storage tank of the powdered phenolic resin.

[0021] 2. In this application, the flaky phenolic resin in the silo enters the pulverizer through the material conveying device. The screw conveyor is started under the action of the feeder motor, enabling the flaky phenolic resin to smoothly enter the pulverizer. After a certain amount of flaky phenolic resin accumulates inside the pulverizer, the screw conveyor can be stopped to avoid the conveying of the flaky phenolic resin. The flaky phenolic resin is temporarily stored in the buffer bin. When it is necessary to convey the flaky phenolic resin, the flaky phenolic resin in the buffer bin can quickly enter the screw conveyor, providing phenolic resin for the pulverizer quickly. Description of the Drawings

[0022] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0023] Figure 1 It is a schematic diagram of the overall structure of this application in one direction;

[0024] Figure 2 It is a schematic diagram of the overall structure of this application in another direction;

[0025] Figure 3 It is a schematic diagram of the front view structure of this application;

[0026] Figure 4 It is a schematic diagram of the rear view structure of this application;

[0027] Figure 5 It is a schematic diagram of the side view structure of this application;

[0028] Figure 6 It is a schematic diagram of the top view structure of this application;

[0029] Figure 7 It is a schematic diagram of the overall structure of the buffer bin of this application.

[0030] In the figure:

[0031] 1. Main motor, 2. Classifier motor, 3. Crusher, 4. Dry air inlet duct, 5. Feed bin, 6. Buffer bin, 7. Transmission mechanism, 8. Feeder motor, 9. Screw conveyor, 10. Discharge pipe, 11. Support frame, 12. Ordinary air inlet duct, 13. Outlet pipe, 14. Bottom support, 15. Hydraulic cylinder, 16. Support arm, 17. Pressure gauge, 18. Rocker arm, 19. Filter inlet, 20. Conical bin body, 21. Deflector. Detailed implementation manners

[0032] The following further describes this application in conjunction with the accompanying drawings and embodiments.

[0033] It should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to this application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0034] In this application, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationships of various components or elements of this application, and do not specifically refer to any component or element in this application, and should not be construed as a limitation to this application.

[0035] Embodiment 1

[0036] This embodiment is a device for crushing sheet phenolic resin, which crushes the sheet phenolic resin stored in the bin 5 into powdered phenolic resin with a mesh size of 200 - 300, and ensures that the crushed powdered phenolic resin is dry.

[0037] From the overall structure, the device for crushing sheet phenolic resin in this embodiment is based on the bottom bracket 14. The crusher 3 and the main motor 1 are respectively installed at both ends of the bottom bracket 14. The bottom bracket 14 is fixed on the steel bracket on the second floor. The crusher 3 is an existing device. Inside the crusher 3, there are rotating hammers connected to the main motor 1 and a classifier connected to the classifier motor 2. The classifier motor 2 is installed at the upper end of the crusher 3. A pressure gauge 17 is installed on the crusher 3 to detect the pressure exerted on the crusher 3 by the air flow inside the crusher 3. A thermometer can also be installed to ensure that the temperature inside the crusher 3 is appropriate. As the core structure, a drying air inlet pipe 4 is installed on the crusher 3 in this embodiment. The position of the inlet of the drying air inlet pipe 4 is arranged at the lower side of the crusher 3. The drying air inlet pipe 4 is connected to a dryer. Specifically, the dryer in this embodiment is a rotary dehumidifier. The rotary dehumidifier is connected to the crusher 3 through the drying air inlet pipe 4. The crusher 3 has a discharge pipe 13, and the discharge pipe 13 is arranged above the drying air inlet pipe 4, and the two do not overlap. For example, the plane where the discharge pipe 13 is located forms a 90° angle with the plane where the drying air inlet pipe 4 is located. The crusher 3 is connected to the bin 5 through a feeding device. The sheet phenolic resin in the bin 5 enters the crusher 3 through the feeding device. Through the action of the rotating hammers and the classifier inside the crusher 3, powdered phenolic resin with a mesh size of 200 - 300 is obtained. Under the action of the drying air in the drying air inlet pipe 4, the powdered phenolic resin enters the storage bin 5 of the powdered phenolic resin along the discharge pipe 13. In addition, as an alternative channel, the crusher 3 also has a normal air inlet pipe 12 and a filter air inlet 19, and a filter is installed on the filter air inlet 19.

[0038] As a conveying structure for sheet phenolic resin, the lower end of the storage bin 5 in this embodiment has a discharge port. The feeding device includes a buffer bin 6 which is installed on the discharge port. A screw conveyor 9 is installed at the end of the buffer bin 6. A blanking pipe 10 is installed at the end of the screw conveyor 9. The blanking pipe 10 is connected to the pulverizer 3. A screw shaft is installed in the screw conveyor 9. The feeder motor 8 is connected to the screw shaft through a transmission mechanism 7. Specifically, the screw shaft is driven to rotate by the feeder motor 8. The sheet phenolic resin in the storage bin 5 enters the buffer bin 6 along the discharge port. The sheet phenolic resin in the buffer bin 6 enters the screw conveyor 9 and reaches the blanking pipe 10 along with the screw shaft, and finally reaches the pulverizer 3.

[0039] In this embodiment, the rotation of the screw shaft in the screw conveyor 9 can be stopped, so that the sheet phenolic resin is temporarily stored in the buffer bin 6 and the storage bin 5. One end of the screw shaft protrudes from the shell of the screw conveyor 9. Either a pulley or a sprocket is installed on the protruding screw shaft. The transmission mechanism 7 is a corresponding belt or chain. Specifically, a support frame 11 is installed on the bottom bracket 14. A speed reducer is installed on the support frame 11. The input shaft of the speed reducer is connected to the output shaft of the feeder motor 8. The output shaft of the speed reducer is connected to the transmission mechanism 7. A corresponding pulley or sprocket is also installed on the output shaft of the speed reducer.

[0040] As a specific implementation, the buffer bin 6 in this embodiment serves as a temporary storage space for sheet phenolic resin, playing functions such as buffering, storing, and preventing material blockage. It is used in cooperation with the screw conveyor 9. The buffer bin 6 in this embodiment includes a conical bin body 20. The upper end of the conical bin body 20 has a large space and the lower end has a small space. A diversion plate 21 is installed in the conical bin body 20 to guide the sheet phenolic resin to move into the screw conveyor 9. The lower end of the buffer bin 6 is connected to the screw conveyor 9 through wing plates. In addition, the diversion plate 21 in this embodiment can be movable. Specifically, slots are provided on the surface of the buffer bin 6. Flexible pads are provided in the slots. The diversion plate 21 is inserted into the slots and the diversion plate 21 contacts the flexible pads. A pull ring is provided on the diversion plate 21. By pulling the diversion plate 21, the diversion plate 21 can move in the buffer bin 6 to achieve the function of preventing material blockage. A connection head is also provided on the conical bin body 20. The connection head can be connected to the drying air inlet pipe 4 through a connecting pipe, so that the drying air in the drying air inlet pipe 4 enters the buffer bin 6 from the connection head, preventing the powdered phenolic resin in the pulverizer 3 from flowing back into the storage bin 5 and enabling the sheet phenolic resin in the storage bin 5 to smoothly move into the pulverizer 3. A one-way valve and a control valve are installed on the connecting pipe. The valve is opened when needed to make the connecting pipe in a connected state, and the valve is closed when the connecting pipe is not needed to make the connecting pipe in a closed state.

[0041] Specifically, the size of the outlet at the lower end of the buffer bin 6 is the same as the inner diameter of the conveying pipeline of the screw conveyor 9, while the size of the outlet at the lower end of the buffer bin 6 is larger than the size of the inlet at the upper end of the buffer bin 6.

[0042] As a specific implementation, the crusher 3 of this embodiment has three sections, including a bottom cylinder arranged at the bottommost end, an intermediate cylinder in the middle, and a sealing cover at the upper end. The bottom cylinder is installed on the bottom bracket 14. The bottom cylinder, the intermediate cylinder, and the sealing cover are sequentially connected together by bolts. A hinge seat is installed on the bottom bracket 14 of this embodiment, and a hydraulic cylinder 15 is hingedly installed on the hinge seat. The sealing cover is provided with a support arm 16. One end of the support arm 16 away from the sealing cover is hingedly installed with a rocker arm 18. The push rod of the hydraulic cylinder 15 is hingedly connected to the rocker arm 18. Separate the classifier motor 2 and the discharge pipe 13 at the upper end, separate the sealing cover and the intermediate cylinder, and lift the sealing cover by the hydraulic cylinder 15 to realize operations such as maintenance inside the crusher 3.

[0043] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0044] Although the specific implementation of the present application has been described above in conjunction with the drawings, it is not a limitation on the protection scope of the present application. Those skilled in the art should understand that based on the technical solution of the present application, various modifications or deformations that can be made without creative labor by those skilled in the art are still within the protection scope of the present application.

Claims

1. A flaky phenolic resin crushing device, characterized in that: It includes a crusher, a main motor and a classifier motor, wherein a rotating hammer connected to the main motor and a classifier connected to the classifier motor are arranged inside the crusher; The pulverizer is provided with a drying air inlet pipe, which is connected to the dryer; The pulverizer is provided with a discharge pipe, and the discharge pipe is arranged above the drying air inlet pipe; The pulverizer is connected to the silo via a feeding device.

2. The flaky phenolic resin pulverizing device according to claim 1, characterized in that: The pulverizer is also provided with a common air inlet pipe and a filter screen air inlet.

3. The flaky phenolic resin pulverizing device according to claim 1, characterized in that: A discharge port is arranged at the lower end of the silo, and the feeding device comprises a buffer silo, which is arranged on the discharge port. A screw conveying device is arranged at the end of the buffer silo, and a discharge pipe is arranged at the end of the screw conveying device, which is connected to a crusher.

4. A flaky phenolic resin pulverizing device as claimed in claim 3, characterized in that: A screw shaft is arranged in the screw conveying device, and the feeder motor is connected to the screw shaft through a transmission mechanism.

5. The flaky phenolic resin pulverizing device according to claim 4, characterized in that: One end of the spiral shaft protrudes from the outer shell of the spiral conveying device, and the spiral shaft protruding from the outer shell is provided with any one of a pulley and a sprocket, and the transmission mechanism is a corresponding belt or chain.

6. The flaky phenolic resin pulverizing device according to claim 4, characterized in that: The main motor and the crusher are arranged on a bottom bracket.

7. A flaky phenolic resin pulverizing device as claimed in claim 6, characterized in that: A support frame is arranged on the bottom bracket, a reducer is arranged on the support frame, an input shaft of the reducer is connected to an output shaft of a feeder motor, and an output shaft of the reducer is connected to a transmission mechanism.

8. The flaky phenolic resin pulverizing device according to claim 6, characterized in that: The bottom bracket is provided with an articulated seat, a hydraulic cylinder is articulated on the articulated seat, a sealing cover is provided on the pulverizer, a support arm is provided on the sealing cover, a rocker arm is articulated at one end of the support arm away from the sealing cover, and a push rod of the hydraulic cylinder is articulatedly connected to the rocker arm.

9. The flaky phenolic resin pulverizing device according to claim 3, characterized in that: The buffer bin comprises a conical bin body, and a guide plate is arranged in the conical bin body.

10. The flaky phenolic resin pulverizing device according to claim 1, characterized in that: The pulverizer is provided with a pressure gauge.

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