Impurity separation device for purifying phenolic resin

Abstract

The present invention relates to an impurity separation device for purifying phenolic resin, which includes a display PLC controller and a tank body. A steam jacket cavity is provided on the outer periphery of the tank body. A phenolic resin outlet valve is provided at the bottom of the tank body. A stirring shaft is provided in the inner cavity of the tank body, and stirring fins are provided on the stirring shaft. A high-temperature steam inlet, a solid material inlet, a water inlet, a stirring hole and a hole K are provided at the top of the tank body; the stirring shaft is coaxially arranged with the stirring hole, and the stirring shaft is driven by a servo motor D, and the servo motor D is fixedly connected to the tank body; a riser pipe is welded at the hole K, and a horizontal cover is provided at the top of the riser pipe; a hollow shaft electric telescopic rod B is fixedly provided on the horizontal cover, its top is connected to a high-temperature resistant flexible pipe, and a servo motor submersible pump is provided at the bottom end; it also includes a first interface position detection device and a second interface position detection device. This technical solution replaces manual operation with automation, improves work efficiency, and improves the purity of phenolic resin.

Description

Technical Field

[0001] The invention belongs to the technical field of phenolic resin purification, and particularly relates to an impurity separation device for phenolic resin purification. Background Art

[0002] Phenolic resin, also known as bakelite or bakelite powder, is widely used in various fields such as automobiles, electronics, construction, aviation, etc. Phenolic resin is a resin made by polycondensation of phenol and formaldehyde under catalyst conditions, neutralization, and water washing. It is insoluble in water and stable to water, weak acid, and weak alkali solutions.

[0003] In the prior art, the purification process of phenolic resin generally adopts a multiple water washing method to remove impurities, that is, mixing and stirring with 100°C hot water in a reactor, standing and cooling, and then extracting the upper impurity water, and repeating this process in multiple reactors to finally obtain a purified phenolic resin that meets the requirements.

[0004] The above purification process has the following defects:

[0005] (1) Low work efficiency

[0006] During the static cooling step, the phenolic resin and the upper impurity water can be separated into layers quickly, and the temperature does not need to drop a lot. After separation, the water pumping operation can be carried out. However, for manual hand-held water pumping operations, the high-temperature water will be transferred to the human body through the water pumping hose, making the operation impossible. Therefore, the static cooling time needs to be extended until the water temperature drops to a level acceptable to the human body, which obviously reduces work efficiency.

[0007] (2) The operator’s labor intensity is high and the working environment is poor

[0008] When placing the suction pipe and the suction pump downward, manual observation and operation are required to avoid obstruction by the stirring wings. When the stirring wings cannot be avoided, the stirring wings need to be manually moved. The operator must also pay attention to the drop in the liquid level. When the suction port of the submersible pump drops to the vicinity of the interface between the impure water and the phenolic resin, the water is often not completely pumped out and the phenolic resin is pumped out, resulting in the separated phenolic resin having low purity.

[0009] So how to replace manual operation with automation to significantly shorten the static cooling time; how to automatically control the downward movement of the pumping pipe and the submersible pump and avoid the obstruction of the stirring wing; how to automatically determine the interface between the impure water and the phenolic resin so that the pumping port of the submersible pump can pump out as much impure water as possible without pumping out the phenolic resin. There is currently no suitable equipment and method to solve the above problems. Summary of the invention

[0010] The technical problem to be solved by the present invention is to make up for the deficiencies of the prior art and provide an impurity separation device for purifying phenolic resin.

[0011] To solve the above technical problems, the technical solution of the present invention is as follows:

[0012] An impurity separation device for purifying phenolic resin, comprising a display PLC controller and a tank body. A steam jacket cavity is provided on the outer periphery of the tank body. A phenolic resin outlet valve is provided at the bottom of the tank body. A stirring shaft is provided in the inner cavity of the tank body, and a first stirring fin is provided at the lower part of the stirring shaft. A high-temperature steam inlet, a solid material inlet, a water inlet, a stirring hole and a hole K are provided at the top of the tank body.

[0013] The high-temperature steam inlet is communicated with the steam jacket cavity.

[0014] Both the solid material inlet and the water inlet are communicated with the inner cavity of the tank body.

[0015] The stirring shaft is coaxially arranged with the stirring hole, and the stirring shaft is driven by a servo motor D, and the servo motor D is fixedly connected to the tank body.

[0016] A riser pipe is welded at the hole K, and a horizontal cover is provided at the top of the riser pipe.

[0017] The hollow shaft electric telescopic rod B includes a fixed part B and a hollow shaft telescopic part B, and the telescopic movement of the hollow shaft telescopic part B is driven by a servo motor B. The fixed part B of the hollow shaft electric telescopic rod B is fixedly connected to the horizontal cover, and the hollow shaft telescopic part B passes through the horizontal cover and enters the inner cavity of the tank body. The top of the hollow shaft electric telescopic rod B is connected to a high-temperature resistant flexible pipe, and a servo motor submersible pump is fixedly connected to the bottom end of the hollow shaft telescopic part B, and the water outlet of the servo motor submersible pump is communicated with the high-temperature resistant flexible pipe.

[0018] It further includes a first interface position detection device and a second interface position detection device.

[0019] The first interface position detection device is used to detect the position of the impurity water liquid level and upload the detection signal to the display PLC controller.

[0020] The second interface position detection device is used to detect the position of the interface between the impurity water and the phenolic resin and upload the detection signal to the display PLC controller.

[0021] The actions of the servo motor D, the servo motor B and the servo motor submersible pump are all controlled by the display PLC controller.

[0022] Furthermore, the first interface position detection device is an ultrasonic liquid level sensor, and the ultrasonic liquid level sensor is fixedly connected to the horizontal cover, and the ultrasonic liquid level sensor uploads the detection signal to the display PLC controller.

[0023] Further, the second interface position detection device includes thermocouple A, thermocouple B, and thermocouple C, all of which are fixedly connected to the fixed seat. The bottom end of thermocouple A is lower than that of thermocouple B, and the bottom end of thermocouple B is lower than that of thermocouple C. The fixed seat is fixedly connected to the connecting piece, and the connecting piece is fixedly connected to the hollow shaft telescopic part B of the hollow shaft electric telescopic rod B through a connecting rod. Thermocouple A, thermocouple B, and thermocouple C upload detection signals to the display PLC controller.

[0024] Further, the second interface position detection device includes thermocouple A, thermocouple B, and thermocouple C, all of which are fixedly connected to the fixed seat. The bottom end of thermocouple A is lower than that of thermocouple B, and the bottom end of thermocouple B is lower than that of thermocouple C. The fixed seat is fixedly connected to the connecting piece. It further includes electric telescopic rod A24, which includes a fixed part A and a telescopic part A. The telescopic movement of the telescopic part A is driven by servo motor A. The fixed part A of electric telescopic rod A24 is fixedly connected to the horizontal cover, and the telescopic part A passes through the horizontal cover and enters the inner cavity of the tank body. The connecting piece is fixedly connected to the bottom end of the telescopic part A. Thermocouple A, thermocouple B, and thermocouple C upload detection signals to the display PLC controller, and the operation of servo motor A is controlled by the display PLC controller.

[0025] Further, it further includes a row brush, on which there are 3 brush holes, and thermocouple A, thermocouple B, and thermocouple C are respectively placed in the 3 brush holes, one by one in matching. It further includes electric telescopic rod C, which includes a fixed part C and a telescopic part C. The telescopic movement of the telescopic part C is driven by servo motor C. The fixed part C of electric telescopic rod C is fixedly connected to the connecting piece, and the row brush is fixedly connected to the bottom end of the telescopic part C. The operation of servo motor C is controlled by the display PLC controller.

[0026] Further, it further includes a horizontal concave water collecting tank, which is fixedly connected to the bottom of the servo motor submersible pump through a connecting rod. The water suction port of the servo motor submersible pump is located in the inner cavity below the upper edge of the horizontal concave water collecting tank.

[0027] Further, the middle part of the stirring shaft is provided with a second stirring wing, and the included angle between the second stirring wing and the first stirring wing is 90°. There is a marking line on the output shaft of servo motor D, and the included angles between the marking line and both the second stirring wing and the first stirring wing are 45°. It further includes a monitoring camera, which is used to monitor the position of the marking line and upload the monitoring signal to the display PLC controller.

[0028] Further, the top of the tank body is further provided with an air inlet and an exhaust port, both of which are communicated with the inner cavity of the tank body.

[0029] Further, a heat preservation layer is provided outside the steam jacket cavity.

[0030] Furthermore, it further includes a suspension end, on which a pull rope spring is provided, and the high-temperature resistant flexible pipe is suspended by the pull rope spring.

[0031] The beneficial effects that can be achieved by the present invention are as follows:

[0032] (1) By the matching use of the hollow shaft electric telescopic rod B, the servo motor submersible pump and the high-temperature resistant flexible pipe, the manual lowering of the water suction pipe is replaced, greatly reducing the labor intensity of the operator.

[0033] (2) By replacing manual operation with automation, it is not afraid of the high-temperature discharge of impurity water, and the static cooling time can be greatly shortened.

[0034] (3) By the first interface position detection device and the second interface position detection device respectively detecting the position of the impurity water liquid level and the position of the interface between the impurity water and the phenolic resin, manual visual identification is replaced.

[0035] (4) Furthermore, by setting a horizontal concave water collecting tank, the water suction port of the submersible pump can suck out as much impurity water as possible without sucking the phenolic resin, improving the purity of the phenolic resin.

[0036] (5) Furthermore, by the monitoring camera to judge the position of the marking line, and then adjust the position of the stirring fin, so as to avoid the stirring fin blocking the descent of the submersible pump. Description of the Drawings

[0037] Figure 1 is the main cross-sectional view of Embodiment 1 of the present invention;

[0038] Figure 2 is Figure 1 the A-A cross-sectional view of

[0039] Figure 3 is Figure 1 the state diagram after the thermocouple and the submersible pump in

[0040] Figure 4 is Figure 1 the enlarged view of Part Ⅰ of

[0041] Figure 5 is Figure 4 the B-B cross-sectional view of

[0042] Figure 6 is the control schematic diagram of Embodiment 1 of the present invention;

[0043] Figure 7 is the main cross-sectional view of Embodiment 2 of the present invention;

[0044] Figure 8 is Figure 7 the enlarged view of Part Ⅱ in

[0045] In the figure: 1 - phenolic resin outlet valve, 2 - condensate outlet, 3 - bracket, 4 - first stirring fin, 5 - tank body, 6 - stirring shaft, 7 - phenolic resin, 8 - support, 9 - steam jacket cavity, 10 - second interface, 11 - second stirring fin, 12 - high-temperature steam inlet, 13 - impurity water, 14 - first interface, 15 - water inlet, 16 - air inlet, 17 - coupling, 18 - solid material inlet, 19 - motor mounting bracket, 20 - output shaft, 21 - marking line, 22 - gearbox, 23 - servo motor D, 24 - electric telescopic rod A, 25 - servo motor A, 26 - elbow, 27 - high-temperature resistant flexible pipe, 28 - pull rope spring, 29 - hanging end, 30 - servo motor B, 31 - hollow shaft electric telescopic rod B, 32 - monitoring camera, 33 - horizontal cover, 34 - exhaust port, 35 - telescopic part A, 36 - hollow shaft telescopic part B, 37 - display PLC controller, 38 - heat preservation layer, 39 - cleaning brush, 40 - connecting rod, 41 - horizontal concave water collecting tank, 42 - servo motor submersible pump, 43 - flange, 44 - sleeve C, 45 - electric telescopic rod C, 46 - telescopic part C, 47 - thermocouple C, 48 - thermocouple B, 49 - thermocouple A, 50 - fixed seat, 51 - connecting piece, 52 - water suction port, 53 - path, 54 - sleeve B, 55 - connecting rod, 56 - hole K, 57 - riser pipe, 58 - servo motor C, 59 - upper edge, 60 - ultrasonic liquid level sensor. Specific embodiments

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] As Figure 1 shown, an impurity separation device for purifying phenolic resin includes a display PLC controller 37 and a tank body 5. The tank body 5 is vertically erected through four supports 8.

[0048] A steam jacket cavity 9 is provided on the outer periphery of the tank body 5. A heat preservation layer 38 is provided outside the steam jacket cavity 9. A condensate outlet 2 is provided at the bottom of the steam jacket cavity 9. A phenolic resin outlet valve 1 is provided at the bottom of the tank body 5.

[0049] A high-temperature steam inlet 12, a solid material inlet 18, a water inlet 15, a stirring hole and a hole K 56 are provided at the top of the tank body 5. The high-temperature steam inlet 12 is communicated with the steam jacket cavity 9. Both the solid material inlet 18 and the water inlet 15 are communicated with the inner cavity of the tank body 5. A riser pipe 57 is welded at the hole K 56, and a horizontal cover 33 is provided at the top of the riser pipe 57.

[0050] A stirring shaft 6 is provided in the inner cavity of the tank body 5. The stirring shaft 6 is coaxially arranged with the stirring holes. The bottom of the stirring shaft 6 is connected to the bracket 3 through a bearing. The bracket 3 is fixedly connected to the tank body 5. The stirring shaft 6 is driven by a servo motor D23. The servo motor D23 drives a gearbox 22. The top of the stirring shaft 6 is coaxially and fixedly connected to the output shaft 20 of the gearbox 22 through a coupling 17. The input shaft of the gearbox 22 is connected to the output shaft of the servo motor D23, and the outer shell of the gearbox 22 is fixedly connected to the outer shell of the servo motor D23. The gearbox 22 is fixed on the motor mounting frame 19, and the motor mounting frame 19 is fixed on the top of the tank body 5.

[0051] The lower part of the stirring shaft 6 is provided with a first stirring fin 4, and the middle part of the stirring shaft 6 is provided with a second stirring fin 11. The first stirring fin 4 includes two symmetrically arranged L-shaped fin plates. The two L-shaped fin plates are arranged on the same plane. The first stirring fin 4 and the stirring shaft 6 are in a "mountain" shape. The second stirring fin 11 is a sheet-like fin. The included angle between the second stirring fin 11 and the first stirring fin 4 is 90°, as Figure 2 shown; a marking line 21 is provided on the output shaft 20 of the gearbox 22. The included angles between the marking line 21 and both the second stirring fin 11 and the first stirring fin 4 are 45°. It also includes a monitoring camera 32. The monitoring camera 32 is used to monitor the position of the marking line 21 and upload the monitoring signal to the display PLC controller 37. An image analysis software is provided in the display PLC controller 37. The monitoring camera 32 is fixed on the motor mounting frame 19.

[0052] In order to realize automatic replacement of manual movement of the water suction pipe, the following is set: The hollow shaft electric telescopic rod B31 includes a fixed part B and a hollow shaft telescopic part B36. The telescoping of the hollow shaft telescopic part B36 is driven by a servo motor B30. The fixed part B of the hollow shaft electric telescopic rod B31 is fixedly connected to the horizontal cover 33. The hollow shaft telescopic part B36 passes through the horizontal cover 33 and enters the inner cavity of the tank body 5. The top of the hollow shaft electric telescopic rod B31 is connected to the high-temperature resistant flexible pipe 27. The bottom end of the hollow shaft telescopic part B36 is fixedly connected with a servo motor submersible pump 42 through a flange 43, and the water outlet of the servo motor submersible pump 42 is connected to the high-temperature resistant flexible pipe 27 through an elbow 26.

[0053] In order to automatically judge the interface between the impurity water and the phenolic resin, a first interface position detection device and a second interface position detection device are set. The first interface 14 refers to the liquid level of the impurity water, that is, the interface between the impurity water and the air. The second interface 10 refers to the interface between the impurity water and the phenolic resin after standing still.

[0054] The first interface position detection device is used to detect the position of the impurity water level. In this embodiment, the first interface position detection device is specifically selected as the ultrasonic liquid level sensor 60. The ultrasonic liquid level sensor 60 is fixedly connected to the horizontal cover 33, and the ultrasonic liquid level sensor 60 uploads the detection signal to the display PLC controller 37.

[0055] The second interface position detection device is used to detect the position of the interface between the impurity water and the phenolic resin, and uploads the detection signal to the display PLC controller 37.

[0056] When setting the second interface position detection device, the inventor thought and experimented repeatedly. The initial consideration was to use a density sensor. Since the density difference between the impurity water and the phenolic resin after static precipitation is very large, theoretically, a density sensor can be used to judge the position of the second interface according to the detected density value. However, in practical applications, it was found that the density sensor failed quickly. The inventor analyzed the reasons: due to the high viscosity of the phenolic resin, it is easy to stick to the sensor, and the density difference between the impurity water and the phenolic resin is too large, resulting in easy failure and non-reusability.

[0057] Later, the inventor accidentally found that the temperature difference between the upper and lower parts of the second interface is obvious, and the difference value is between 1 and 3 °C, that is, the temperature of the impurity water above the second interface is low, and the temperature of the phenolic resin below the second interface is high. This is because the water has good fluidity and heat is conducive to dissipation, while the phenolic resin has viscosity, resulting in heat accumulation and slow temperature dissipation. Therefore, the inventor considered using this characteristic to determine the position of the second interface through a thermocouple sensor, and the test results were quite satisfactory.

[0058] The second interface position detection device includes thermocouple A49, thermocouple B48 and thermocouple C47. All three are fixedly connected to the fixed seat 50. The bottom end of thermocouple A49 is lower than the bottom end of thermocouple B48, and the bottom end of thermocouple B48 is lower than the bottom end of thermocouple C47. The fixed seat 50 is fixedly connected to the connecting piece 51; it also includes an electric telescopic rod A24. The electric telescopic rod A24 includes a fixed part A and a telescopic part A35. The telescopic movement of the telescopic part A35 is driven by a servo motor A25; the fixed part A of the electric telescopic rod A24 is fixedly connected to the horizontal cover 33, and the telescopic part A35 passes through the horizontal cover 33 and enters the inner cavity of the tank body 5; the connecting piece 51 is fixedly connected to the bottom end of the telescopic part A35 through a sleeve C44; thermocouple A49, thermocouple B48 and thermocouple C47 upload the detection signal to the display PLC controller 37.

[0059] In order to clean the phenolic resin adhered to the thermocouple in a timely manner, a cleaning brush 39 is also provided. There are 3 brush holes on the cleaning brush 39, and the thermocouple A49, thermocouple B48, and thermocouple C47 are respectively placed in the 3 brush holes, matching one by one. It also includes an electric telescopic rod C45. The electric telescopic rod C45 includes a fixed part C and a telescopic part C46. The telescopic movement of the telescopic part C46 is driven by a servo motor C58. The fixed part C of the electric telescopic rod C45 is fixedly connected to the connecting piece 51, and the cleaning brush 39 is fixedly connected to the bottom end of the telescopic part C46.

[0060] In order to enable the servo motor submersible pump 42 to pump out as much impurity water as possible without pumping out the phenolic resin, a horizontal concave water collecting tank 41 is specially designed. The horizontal concave water collecting tank 41 is fixed to the bottom of the servo motor submersible pump 42 through a connecting rod 40. The water suction port 52 of the servo motor submersible pump 42 is located in the inner cavity below the upper edge 59 of the horizontal concave water collecting tank 41.

[0061] In order to facilitate ventilation and cooling, an air inlet 16 and an exhaust port 34 are also provided at the top of the tank body 5. Both the air inlet 16 and the exhaust port 34 are connected to the inner cavity of the tank body 5.

[0062] In order not to damage the hollow shaft electric telescopic rod B31 due to the combined gravity of the high-temperature resistant flexible pipe 27 and the extract therein, a suspension end 29 is specially provided. A pull rope spring 28 is provided on the suspension end 29, and the high-temperature resistant flexible pipe 27 is suspended through the pull rope spring 28.

[0063] It is shown that a control program is input into the display PLC controller 37, and the actions of the servo motor A25, servo motor B30, servo motor C58, servo motor D, and servo motor submersible pump 42 are all controlled by the display PLC controller 37.

[0064] Usage of this embodiment:

[0065] Press the start button on the display PLC controller 37, and each electric control component enters the standby working state, as shown in the appendix Figure 3 shown;

[0066] The phenolic resin and water in the tank body 5 are heated by the high-temperature steam in the steam jacket 9 and are fully stirred by the first stirring fin 4 and the second stirring fin 11;

[0067] After stirring for a certain period of time, the mixture enters the static cooling state. At this time, air is supplied into the inner cavity of the tank body 5 through the air inlet 16, and the exhaust port 34 starts to conduct to continuously discharge the hot air in the tank body 5. The discharged hot air contains certain toxins and must be specially treated; after static cooling for a certain period of time, the phenolic resin 7 and the impurity water 13 are stratified;

[0068] The monitoring camera 32 transmits the image of the stationary transmission output shaft 20 to the PLC controller 37 in real time. The PLC controller controls the servo motor D23 to rotate by a corresponding angle according to the position of the marking line 21 on the output shaft 20 of the transmission 22, so that the second stirring fin 11 forms a 45° angle with the telescopic part A 35 and the hollow shaft telescopic part B 36. The relevant positions are as shown in the appendix Figure 2 as shown;

[0069] The PLC controller 37 controls the servo motor A25 to work, and the telescopic part A35 moves downward. The thermocouples A49, B48, and C47 installed at the lower end of the telescopic part A35 descend into the impurity water 13. At this time, the temperature values of the impurity water 13 transmitted by the three thermocouples to the PLC controller 37 are the same; during the downward movement of the three thermocouples in the impurity water 13, the PLC controller 37 controls the servo motor C58 to work, and the telescopic part C46 repeatedly extends and retracts several times. The drain brush 39 fixed at the lower end of the telescopic part C46 moves up and down along the surfaces of the three thermocouples to complete the cleaning of the outer surfaces of the thermocouples;

[0070] When the thermocouple A49 descends to the second interface 10 and below, the temperature value of the thermocouple A49 rises by 1-3 °C. At this time, the PLC controller 37 controls the servo motor A25 to stop working or work extremely slowly. As the temperature of the phenolic resin 7 decreases, its volume will shrink accordingly, so the thermocouple A49 also descends accordingly. The thermocouple A49 remains stationary in the phenolic resin 7 with the highest temperature value, the thermocouple C47 remains stationary in the impurity water 13 with the lowest temperature value, and the thermocouple B48 remains stationary at the second interface 10 with a temperature value between the thermocouple A49 and C47. The PLC controller 37 dynamically calculates the descending distance of the thermocouple B48, that is, the height value of the second interface 10, according to the programmed working revolutions of the servo motor A25;

[0071] The PLC controller 37 controls the servo motor B30 to work according to the height of the first interface 14 transmitted by the ultrasonic liquid level sensor 60, so that the hollow shaft telescopic part B36 moves downward. After the servo motor submersible pump 42 installed at the lower end of the hollow shaft telescopic part B36 descends below the first interface 14, the PLC controller 37 controls the servo motor submersible pump 42 to pump water at high power. The impurity water 13 enters the water suction port 52, then enters the hollow shaft telescopic part B36, passes through the elbow 26, enters the high-temperature resistant flexible pipe 27, and finally reaches the special storage tank.

[0072] The PLC controller 37 can calculate in real time the descending speed and distance of the servo motor submersible pump 42 according to the number of revolutions of the servo motor B30 based on the programming. When the lower surface of the horizontal concave water collecting tank 41 is about to reach the second interface 10, the PLC controller 37 controls the servo motor B30 to work to slowly lower the hollow shaft telescopic part B36; when the first interface 14 is about to approach the upper edge 59 of the horizontal concave water collecting tank 41, the PLC controller 37 controls the servo motor submersible pump 42 to perform low-power pumping operation; when the lower end of the horizontal concave water collecting tank 41 is inserted into the viscous phenolic resin 7 and the upper edge 59 of the horizontal concave water collecting tank 41 drops to be almost flush with the interface 10, the PLC controller 37 controls the servo motor B30 to stop working. At this time, the impurity water 13 can still flow into the horizontal concave water collecting tank 41 along the path 53 and then enter the water suction port 52. Therefore, the water suction port 52 of the servo motor submersible pump 42 can suck as much impurity water 13 as possible without sucking the phenolic resin 7, as shown in the appendix Figure 4 as shown;

[0073] After that, the PLC controller 37 controls the servo motor A25 and the servo motor B30 to work in the reverse direction to raise the thermocouple B48 and the servo motor submersible pump 42 to return to the original state, as shown in the appendix Figure 3 as shown.

[0074] Embodiment 2

[0075] The difference from Embodiment 1 is that the thermocouple A49, the thermocouple B48, and the thermocouple C47 are lifted and lowered together with the servo motor submersible pump 42. The specific structure is as follows:

[0076] The second interface position detection device includes the thermocouple A49, the thermocouple B48, and the thermocouple C47, all of which are fixedly connected to the fixed seat 50. The bottom end of the thermocouple A49 is lower than the bottom end of the thermocouple B48, and the bottom end of the thermocouple B48 is lower than the bottom end of the thermocouple C47; the fixed seat 50 is fixedly connected to the connecting member 51, the connecting member 51 is fixedly connected to the connecting rod 55 through the sleeve B54, and the connecting rod 55 is fixedly connected to the hollow shaft telescopic part B36 of the hollow shaft electric telescopic rod B31; the thermocouple A49, the thermocouple B48, and the thermocouple C47 upload the detection signals to the display PLC controller 37.

[0077] In this embodiment, the three thermocouples are lifted and lowered together with the servo motor submersible pump 42, while in Embodiment 1, the three thermocouples are lifted and lowered separately from the servo motor submersible pump 42. Compared with Embodiment 1, the cost of this embodiment is lower, but the lifting flexibility and detection efficiency of the thermocouples are lower.

[0078] In the description of the present invention, the words indicating the orientation or positional relationship such as "inside", "outside", "upper", "lower", "front", "rear", etc. are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0079] The above is only one implementation manner of the present invention, and the protection scope of the present invention is not limited to the above embodiments. It should be noted that for those of ordinary skill in the art, several improvements and retouches made without departing from the idea of the present invention are within the protection scope of the present invention.

Claims

1. An impurity separation device for purifying phenolic resin, characterized in that: It includes a display PLC controller (37) and a tank body (5). A steam jacket cavity (9) is provided on the outer periphery of the tank body (5). A phenolic resin outlet valve (1) is provided at the bottom of the tank body (5). A stirring shaft (6) is provided in the inner cavity of the tank body (5). A first stirring fin (4) is provided at the lower part of the stirring shaft (6). At the top of the tank body (5), there are a high-temperature steam inlet (12), a solid material inlet (18), a water inlet (15), a stirring hole and a hole K (56). The high-temperature steam inlet (12) is communicated with the steam jacket cavity (9). Both the solid material inlet (18) and the water inlet (15) are communicated with the inner cavity of the tank body (5). The stirring shaft (6) is coaxially arranged with the stirring hole. The stirring shaft (6) is driven by a servo motor D (23), and the servo motor D (23) is fixedly connected to the tank body (5). A riser pipe (57) is welded at the hole K (56), and a horizontal cover (33) is provided at the top of the riser pipe (57). The hollow shaft electric telescopic rod B (31) includes a fixed part B and a hollow shaft telescopic part B (36). The telescoping of the hollow shaft telescopic part B (36) is driven by a servo motor B (30). The fixed part B of the hollow shaft electric telescopic rod B (31) is fixedly connected to the horizontal cover (33). The hollow shaft telescopic part B (36) passes through the horizontal cover (33) and enters the inner cavity of the tank body (5). The top of the hollow shaft electric telescopic rod B (31) is connected to a high-temperature resistant flexible pipe (27). The bottom end of the hollow shaft telescopic part B (36) is fixedly connected to a servo motor submersible pump (42), and the water outlet of the servo motor submersible pump (42) is communicated with the high-temperature resistant flexible pipe (27). It also includes a first interface position detection device and a second interface position detection device. The first interface position detection device is used to detect the position of the impurity water liquid level and upload the detection signal to the display PLC controller (37). The second interface position detection device is used to detect the position of the interface between the impurity water and the phenolic resin and upload the detection signal to the display PLC controller (37). The actions of the servo motor D, the servo motor B (30) and the servo motor submersible pump (42) are all controlled by the display PLC controller (37). The first interface position detection device is an ultrasonic liquid level sensor (60). The ultrasonic liquid level sensor (60) is fixedly connected to the horizontal cover (33), and the ultrasonic liquid level sensor (60) uploads the detection signal to the display PLC controller (37). The second interface position detection device includes a thermocouple A (49), a thermocouple B (48) and a thermocouple C (47). All three are fixedly connected to a fixed seat (50). The bottom end of the thermocouple A (49) is lower than the bottom end of the thermocouple B (48), and the bottom end of the thermocouple B (48) is lower than the bottom end of the thermocouple C (47). The fixed seat (50) is fixedly connected to a connecting piece (51). It also includes a brush (39). There are 3 brush holes on the brush (39), and the thermocouple A (49), the thermocouple B (48) and the thermocouple C (47) are respectively placed in the 3 brush holes, one-to-one matching. It further includes a horizontal concave water collecting tank (41). The horizontal concave water collecting tank (41) is fixed to the bottom of a servo motor submersible pump (42) through a connecting rod (40). The water suction port (52) of the servo motor submersible pump (42) is located in the inner cavity below the upper edge (59) of the horizontal concave water collecting tank (41).

2. The impurity separation device for purifying phenolic resin according to claim 1, characterized in that: The connecting piece (51) is fixedly connected to the hollow shaft telescopic part B (36) of the hollow shaft electric telescopic rod B (31) through a connecting rod (55); the thermocouple A (49), the thermocouple B (48) and the thermocouple C (47) upload the detection signals to the display PLC controller (37).

3. The impurity separation device for purifying phenolic resin according to claim 1, characterized in that: It further includes an electric telescopic rod A (24). The electric telescopic rod A (24) includes a fixed part A and a telescopic part A (35). The telescopic movement of the telescopic part A (35) is driven by a servo motor A (25); the fixed part A of the electric telescopic rod A (24) is fixedly connected to the horizontal cover (33), and the telescopic part A (35) passes through the horizontal cover (33) and enters the inner cavity of the tank body (5); the connecting piece (51) is fixedly connected to the bottom end of the telescopic part A (35); the thermocouple A (49), the thermocouple B (48) and the thermocouple C (47) upload the detection signals to the display PLC controller (37), and the operation of the servo motor A (25) is controlled by the display PLC controller (37).

4. The impurity separation device for purifying phenolic resin according to claim 2 or 3, characterized in that: It further includes an electric telescopic rod C (45). The electric telescopic rod C (45) includes a fixed part C and a telescopic part C (46). The telescopic movement of the telescopic part C (46) is driven by a servo motor C (58); the fixed part C of the electric telescopic rod C (45) is fixedly connected to the connecting piece (51), and the cleaning brush (39) is fixedly connected to the bottom end of the telescopic part C (46); the operation of the servo motor C (58) is controlled by the display PLC controller (37).

5. The impurity separation device for phenolic resin purification according to claim 1, wherein: A second stirring fin (11) is provided in the middle of the stirring shaft (6). The angle between the second stirring fin (11) and the first stirring fin (4) is 90°; a marking line (21) is provided on the output shaft of the servo motor D (23). The angles between the marking line (21) and both the second stirring fin (11) and the first stirring fin (4) are 45°; it further includes a monitoring camera (32). The monitoring camera (32) is used to monitor the position of the marking line (21) and upload the monitoring signal to the display PLC controller (37).

6. The impurity separation device for purifying phenolic resin according to claim 1, characterized in that: An air inlet (16) and an exhaust port (34) are further provided at the top of the tank body (5). The air inlet (16) and the exhaust port (34) are both communicated with the inner cavity of the tank body (5).

7. The impurity separation device for purifying phenolic resin according to claim 1, characterized in that: A heat insulation layer (38) is provided outside the steam jacket (9).

8. The impurity separation device for purifying phenolic resin according to claim 1, characterized in that: It further includes a suspension end (29). A pull rope spring (28) is provided on the suspension end (29). The high-temperature flexible pipe (27) is suspended through the pull rope spring (28).

Images