Temperature control device of paste resin stock bin

Abstract

The utility model relates to the technical field of stock bin temperature control, in particular to a temperature control device of a paste resin stock bin, which comprises a stock bin, a first fan and a heat exchanger, the stock bin is communicated with a paste resin feeding pipeline and a paste resin discharging pipeline, the first fan is communicated with an air inlet pipeline, and a compressed air pipeline is communicated between the first fan and the heat exchanger. The heat exchanger is communicated with a chilled water inlet pipeline and a chilled water return pipeline, and a chilled air pipeline is communicated between the heat exchanger and the stock bin. The paste resin powder feeding device is reasonable and compact in structure and convenient to use, reduces the temperature of paste resin powder in the stock bin, relieves repulsive force generated by the paste resin powder due to high temperature, avoids the scattering phenomenon caused by the repulsive force when the paste resin powder is fed, improves the feeding efficiency of workers, and has the advantages of being safe, labor-saving, simple, convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of silo temperature control, in particular to a temperature control device for a paste resin silo. Background Art

[0002] At present, the finished resin silo is used as a temporary storage silo for resin powder. It uses fan suction to form a stepped negative pressure environment in the silo for temporary storage and discharge of resin powder.

[0003] Generally, compressed air is blown into the silo via a large-displacement fan to keep the resin powder in the silo "boiling" at all times. This also allows the powder in the silo to remain dry, making it easier to feed and unload. The allowable storage temperature index in the resin silo is between 35°C and 50°C, while the compressed air temperature at the outlet of a large-displacement fan can reach 60°C to 66°C, which will cause the temperature in the silo to rise. The resin powder temporarily stored in the silo will increase the repulsive force between the powder particles due to the temperature increase. Finally, when the resin powder is unloaded and bagged at the bottom of the silo, the repulsive force between the particles causes the resin powder to scatter and fall outside the packaging bags. Staff will need to frequently collect the spilled finished resin powder and add to the bagged finished products that are underweight.

[0004] The above problems increase the labor intensity of resin powder loading workers and reduce the company's production safety efficiency. These problems have become technical problems that are difficult for the company to solve. Summary of the Invention

[0005] The utility model provides a temperature control device for a paste resin silo, which overcomes the deficiencies of the prior art and can effectively solve the problem of easy scattering of paste resin powder during unloading from the prior paste resin silo.

[0006] The technical solution of the utility model is achieved through the following measures: a temperature control device for a paste resin silo, comprising a silo, a first fan, and a heat exchanger, wherein the lower feed port of the silo is fixedly connected to a paste resin feed pipeline, the bottom discharge port of the silo is fixedly connected to a paste resin discharge pipeline, the top air inlet of the first fan is fixedly connected to an air inlet pipeline, a compressed air pipeline is fixedly connected between the first fan outlet and the bottom air outlet of the heat exchanger, the top liquid inlet of the heat exchanger is fixedly connected to a chilled water inlet pipeline, the bottom liquid outlet of the heat exchanger is fixedly connected to a chilled water return pipeline, and the top air outlet of the heat exchanger is fixedly connected to the air inlet of the silo bottom.

[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0008] The above-mentioned heat exchanger is a fin-tube heat exchanger, which includes a tube side and a shell side. The air inlet at the bottom of the tube side is fixedly connected to the compressed air pipeline, the air outlet at the top of the tube side is fixedly connected to the chilled air pipeline, the liquid inlet at the top of the shell side is fixedly connected to the chilled water inlet pipeline, and the liquid outlet at the bottom of the shell side is fixedly connected to the chilled water return pipeline.

[0009] A second fan is fixedly installed on the right side of the top of the silo, and the air inlet of the second fan is fixedly connected to the air outlet on the right side of the top of the silo.

[0010] The air outlet on the top of the second fan is fixedly connected to a first exhaust pipeline, and a first filter is fixedly installed on the first exhaust pipeline.

[0011] A second filter and a muffler are fixedly installed in sequence on the air intake pipeline along the flow direction of the medium.

[0012] The compressed air pipeline is fixedly connected to a second exhaust pipeline, and a safety valve is fixedly installed on the second exhaust pipeline.

[0013] A first control valve is fixedly installed on the compressed air pipeline between the second exhaust pipeline and the air inlet at the bottom of the pipeline.

[0014] A remote thermometer is fixedly installed on the above-mentioned refrigerated air pipeline.

[0015] A second control valve is fixedly installed on the above-mentioned chilled water inlet pipeline.

[0016] The above-mentioned device also includes a controller, and the first fan, the second fan, the safety valve, the first control valve, the remote thermometer, and the second control valve are all electrically connected to the controller.

[0017] The utility model has a reasonable and compact structure and is easy to use. It reduces the working temperature in the silo and alleviates the problem that the paste resin powder temporarily stored in the silo is easily scattered during unloading and loading, thereby reducing the labor intensity of the loading staff and improving the safe production efficiency of the enterprise. It has the characteristics of safety, labor saving, simplicity and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 This is a schematic diagram of the process flow of this utility model.

[0019] Attachment Figure 1The codes are as follows: 1 for silo, 2 for the first fan, 3 for heat exchanger, 4 for paste resin feed pipeline, 5 for paste resin discharge pipeline, 6 for air intake pipeline, 7 for compressed air pipe, 8 for chilled water inlet pipeline, 9 for chilled water return pipeline, 10 for chilled air pipeline, 11 for tube side, 12 for shell side, 13 for the second fan, 14 for the first exhaust pipeline, 15 for the first filter, 16 for the second filter, 17 for silencer, 18 for the second exhaust pipeline, 19 for safety valve, 20 for the first control valve, 21 for remote thermometer, and 22 for the second control valve. DETAILED DESCRIPTION

[0020] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0021] In the present invention, unless otherwise specified, the equipment and devices used are all the equipment and devices known and used in the art.

[0022] In this utility model, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 The positional relationships of front, back, top, bottom, left, and right are described in the layout of the manual. Figure 1 The layout direction is determined by the

[0023] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0024] Example 1: As shown in the attached Figure 1 As shown, the temperature control device of the paste resin silo includes a silo 1, a first fan 2, and a heat exchanger 3. The lower feed port of the silo 1 is fixedly connected to a paste resin feed pipeline 4, the bottom discharge port of the silo 1 is fixedly connected to a paste resin discharge pipeline 5, the top air inlet of the first fan 2 is fixedly connected to an air inlet pipeline 6, a compressed air pipeline 7 is fixedly connected between the air outlet of the first fan 2 and the bottom air outlet of the heat exchanger 3, the top liquid inlet of the heat exchanger 3 is fixedly connected to a chilled water inlet pipeline 8, the bottom liquid outlet of the heat exchanger 3 is fixedly connected to a chilled water return pipeline 9, and a chilled air pipeline 10 is fixedly connected between the top air outlet of the heat exchanger 3 and the bottom air inlet of the silo 1.

[0025] According to the needs, the first fan 2 uses a three-blade Roots blower, which is a positive displacement blower. The air volume delivered is proportional to the number of rotor revolutions. The air volume delivered can reach 50.69m 3 / min, which has the advantage of large air volume, but the outlet air temperature of the first fan 2 is high. The heat exchanger 3 can reduce the temperature of the air flow blown into the silo 1 by the first fan 2, thereby reducing the temperature of the temporarily stored paste resin in the silo 1.

[0026] The temperature control device of the paste resin silo can be further optimized and / or improved according to actual needs:

[0027] Example 2: The difference between it and Example 1 is: Figure 1 As shown, the heat exchanger 3 is a fin-tube heat exchanger, which includes a tube side 11 and a shell side 12. The air inlet at the bottom of the tube side 11 is fixedly connected to the compressed air pipeline 7, the air outlet at the top of the tube side 11 is fixedly connected to the chilled air pipeline 10, the liquid inlet at the top of the shell side 12 is fixedly connected to the chilled water inlet pipeline 8, and the liquid outlet at the bottom of the shell side 12 is fixedly connected to the chilled water return pipeline 9.

[0028] According to the needs, the finned tube heat exchanger can improve the heat transfer efficiency. The fins are made of aluminum and the total heat transfer area can reach 50m 2 , which can effectively and evenly reduce the air flow temperature output by the first fan 2.

[0029] Example 3: The difference between it and Example 1 to Example 2 is that: Figure 1 As shown, a second fan 13 is fixedly installed on the right side of the top of the silo 1, and the air inlet of the second fan 13 is fixedly connected to the air outlet on the right side of the top of the silo 1.

[0030] As needed, the second fan 13 extracts air from the silo 1 at low pressure, which can keep the airflow in the silo 1 stable, thereby improving the stability of the storage effect of the paste resin powder in the silo 1.

[0031] Example 4: The difference between it and Example 1 to Example 3 is that: Figure 1 As shown, the top air outlet of the second fan 13 is fixedly connected to the first exhaust pipeline 14 , and a first filter 15 is fixedly installed on the first exhaust pipeline 14 .

[0032] As needed, the first filter 15 can filter out harmful substances discharged into the atmosphere through the first exhaust line 14 .

[0033] Example 5: The difference between it and Example 1 to Example 4 is that: Figure 1 As shown, a second filter 16 and a muffler 17 are fixedly installed in sequence on the air intake pipeline 6 along the flow direction of the medium.

[0034] As needed, the second filter 16 can prevent impurities in the air from entering the first fan 2, thereby improving the purity of the paste resin powder in the silo 1. The muffler 17 can reduce the suction noise of the first fan 2, thereby reducing the impact of the noise on the normal work of the staff.

[0035] Example 6: The difference between it and Example 1 to Example 5 is that: Figure 1As shown, the compressed air pipeline 7 is fixedly connected to a second exhaust pipeline 18 , and a safety valve 19 is fixedly installed on the second exhaust pipeline 18 .

[0036] Example 7: The difference between it and Example 1 to Example 6 is that: Figure 1 As shown, a first control valve 20 is fixedly installed on the compressed air pipeline 7 between the second exhaust pipeline 18 and the air inlet at the bottom of the pipe side 11.

[0037] Example 8: The difference between it and Example 1 to Example 7 is that: Figure 1 As shown, a remote thermometer 21 is fixedly installed on the refrigerated air pipeline 10.

[0038] Example 9: The difference between it and Example 1 to Example 8 is that: Figure 1 As shown, a second control valve 22 is fixedly installed on the chilled water inlet pipeline 8.

[0039] Example 10: The difference between it and Example 1 to Example 9 is that: Figure 1 As shown, the device further includes a controller, and the first fan 2, the second fan 13, the safety valve 19, the first control valve 20, the remote thermometer 21, and the second control valve 22 are all electrically connected to the controller.

[0040] As needed, the various pipelines and equipment of the temperature control device of the paste resin silo can also be equipped with conventional valves, thermometers, and pressure gauges known in the art according to production needs. The controller is a DCS controller, and the model of the DCS controller can be the CS3000 controller produced by Yokogawa Corporation of Japan.

[0041] The utility model reduces the problem of easy scattering of the paste resin in the silo when the paste resin is unloaded and bagged, reduces the labor intensity of the staff, and reduces cost waste for the enterprise.

[0042] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

[0043] The use process of the embodiment of the utility model is as follows: first, the paste resin powder enters the silo 1 through the paste resin feed pipeline 4 for temporary storage; at the same time, the air is filtered by the second filter 16 and enters the first fan 2 through the air inlet pipeline 6 to increase the pressure and increase the air flow rate; then, the compressed air from the air outlet of the first fan 2 enters the pipe side 11 through the compressed air pipe 7, and the chilled water enters the shell side 12 through the chilled water inlet pipeline 8, and cools the compressed air in the pipe side 11. The cooled compressed air enters the silo 1 through the chilled air pipeline 10 and blows away the compressed air. The temperature of the paste resin powder in the silo 1 is evenly reduced, and the circulating chilled water in the shell side 12 enters the downstream process system through the chilled water return pipeline 9; then, the second fan 13 extracts the air in the silo 1 at low pressure to keep the air pressure in the silo 1 stable, and the outlet gas of the second fan 13 is filtered by the first filter 15 and discharged into the atmosphere; finally, when the downstream process system needs the paste resin powder or sells the paste resin powder to the outside, the paste resin powder in the silo 1 is discharged through the paste resin discharge pipeline 5, and the staff bags and stacks the paste resin powder.

Claims

1. A temperature control device for a paste resin silo, characterized in that It includes a silo, a first fan, and a heat exchanger. The lower feed port of the silo is fixedly connected to a paste resin feed pipeline, the bottom discharge port of the silo is fixedly connected to a paste resin discharge pipeline, the top air inlet of the first fan is fixedly connected to an air inlet pipeline, the air outlet of the first fan and the bottom air outlet of the heat exchanger are fixedly connected to a compressed air pipeline, the top liquid inlet of the heat exchanger is fixedly connected to a chilled water inlet pipeline, the bottom liquid outlet of the heat exchanger is fixedly connected to a chilled water return pipeline, and the top air outlet of the heat exchanger and the bottom air inlet of the silo are fixedly connected to a chilled air pipeline.

2. The temperature control device for the paste resin silo according to claim 1, characterized in that The heat exchanger is a fin-tube heat exchanger, which includes a tube side and a shell side. The air inlet at the bottom of the tube side is fixedly connected to the compressed air pipeline, the air outlet at the top of the tube side is fixedly connected to the chilled air pipeline, the liquid inlet at the top of the shell side is fixedly connected to the chilled water inlet pipeline, and the liquid outlet at the bottom of the shell side is fixedly connected to the chilled water return pipeline.

3. The temperature control device for the paste resin silo according to claim 1 or 2, characterized in that A second fan is fixedly installed on the right side of the top of the silo, and the air inlet of the second fan is fixedly connected to the air outlet on the right side of the top of the silo.

4. The temperature control device of the paste resin silo according to claim 3, characterized in that An air outlet on the top of the second fan is fixedly connected to a first exhaust pipeline, and a first filter is fixedly installed on the first exhaust pipeline.

5. The temperature control device for the paste resin silo according to claim 1, 2 or 4, characterized in that A second filter and a silencer are fixedly installed in sequence on the air intake pipeline along the flow direction of the medium.

6. The temperature control device for the paste resin silo according to claim 1, 2 or 4, characterized in that The compressed air pipeline is fixedly connected to a second exhaust pipeline, and a safety valve is fixedly installed on the second exhaust pipeline.

7. The temperature control device for the paste resin silo according to claim 6, characterized in that A first control valve is fixedly installed on the compressed air pipeline between the second exhaust pipeline and the air inlet at the bottom of the pipeline.

8. The temperature control device for the paste resin silo according to claim 1, 2, 4 or 7, characterized in that A remote thermometer is permanently installed on the refrigerated air pipeline.

9. The temperature control device for the paste resin silo according to claim 8, characterized in that A second control valve is fixedly installed on the chilled water inlet pipeline.

10. The temperature control device for the paste resin silo according to claim 9, characterized in that It also includes a controller, and the first fan, the second fan, the safety valve, the first control valve, the remote thermometer, and the second control valve are all electrically connected to the controller.

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