Evaporation device for pentaerythritol production

Abstract

The utility model relates to the technical field of pentaerythritol production, and discloses a pentaerythritol production evaporation device which comprises a support, a gas-liquid separation tank is fixedly installed on the inner surface of the support, a liquid discharge valve is arranged on the lower surface of the gas-liquid separation tank, a tail gas treatment device is arranged in the gas-liquid separation tank, and a liquid discharge valve is arranged on the lower surface of the gas-liquid separation tank. The tail gas treatment device comprises a storage box, a conveying pipeline, a booster pump, a motor, a transmission shaft, centrifugal fan blades, a separation barrel, a filter plate, an exhaust pipe, a filter pipeline, a filter element and an exhaust fan, and the storage box is arranged on the right surface of the gas-liquid separation tank. According to the pentaerythritol gas-liquid separation device, gas and liquid in a pentaerythritol gas-liquid mixture are separated, the pentaerythritol liquid can be filtered after being separated, impurities in the pentaerythritol liquid are removed, the obtained pure pentaerythritol liquid can be recycled, and the pentaerythritol gas-liquid separation device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of pentaerythritol production, in particular to an evaporation device for pentaerythritol production. Background Art

[0002] Pentaerythritol is an important organic chemical raw material. As a raw material for producing paint, most of it is used for the synthesis of oil-modified alkyd resin. The paint produced with pentaerythritol has higher film hardness, better gloss, stronger durability, improved color stability performance and fire resistance compared with the paint produced with glycerol. It is used to synthesize drying oil. The tetranitro pentaerythritol produced after nitrification can be used as an explosive. It is used as a raw material for petroleum antifreeze additives. It is used as a raw material for non-toxic plasticizers.

[0003] During the evaporation process of pentaerythritol production, the tail gas of pentaerythritol production enters the subsequent tail gas treatment system with water vapor containing part of pentaerythritol. After the tail gas enters the absorption tower, part of the harmful components in the tail gas are absorbed by the water spray in the absorption tower. At this time, pentaerythritol is also absorbed by the medium water, polluting the medium water, bringing a burden to the subsequent medium water reuse treatment and causing waste of pentaerythritol materials. Therefore, in the prior art, a gas-liquid separator that can effectively separate the pentaerythritol aqueous solution from the tail gas of pentaerythritol production is provided. In view of this, an evaporation device for pentaerythritol production is now proposed. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an evaporation device for pentaerythritol production, which solves the problem of low utilization rate of the gas-liquid mixed discharge after pentaerythritol evaporation.

[0006] (2) Technical Solutions

[0007] To achieve the purpose of processing the gas-liquid mixture after pentaerythritol evaporation, the utility model provides the following technical solutions: an evaporation device for pentaerythritol production, including a bracket, and a gas-liquid separation tank is fixedly installed on the inner surface of the bracket. A drain valve is arranged on the lower surface of the gas-liquid separation tank;

[0008] Among them, a tail gas treatment device is arranged in the gas-liquid separation tank. The tail gas treatment device includes a storage tank, a conveying pipeline, a booster pump, a motor, a transmission shaft, a centrifugal fan blade, a separation cylinder, a filter plate, an exhaust pipe, a filtering pipeline, a filter element and an exhaust fan.

[0009] Preferably, the storage tank is arranged on the right surface of the gas-liquid separation tank, and a conveying pipeline is arranged on the upper surface of the storage tank. The output end of the conveying pipeline communicates with the gas-liquid separation tank;

[0010] Among them, the booster pump is arranged on the outer surface of the conveying pipeline, and the booster pump is fixedly installed on the upper surface of the storage tank.

[0011] Preferably, the motor is fixedly installed on the upper surface of the gas-liquid separation tank, and the transmission shaft is fixedly installed at the lower end of the output end of the motor;

[0012] Among them, the centrifugal fan blade is fixedly sleeved on the outer surface of the transmission shaft.

[0013] Preferably, the separation cylinder is fixedly installed in the inner wall of the gas-liquid separation tank;

[0014] Among them, the filter plate is arranged in the inner wall of the gas-liquid separation tank.

[0015] Preferably, the air pipe is arranged on the upper surface of the gas-liquid separation tank, and a filter pipe is fixedly installed at the output end of the exhaust pipe;

[0016] Among them, a filter element is arranged in the filter pipe.

[0017] Preferably, the exhaust fan is arranged at the output end of the filter pipe.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present utility model provides a pentaerythritol production evaporation device, which has the following beneficial effects:

[0020] 1. For this pentaerythritol production evaporation device, the pentaerythritol can be subjected to cyclone gas-liquid separation through the centrifugal fan and the separation barrel, so that the gas and liquid in the pentaerythritol gas-liquid mixture are separated. And after the pentaerythritol liquid is separated, it can be filtered to remove the impurities therein, and the pure pentaerythritol liquid can be recycled, which is more convenient.

[0021] 2. When discharging the pentaerythritol gas, this pentaerythritol production evaporation device can filter it through the filter element arranged in the filter pipe, adsorb the harmful impurities in the pentaerythritol gas, and divert it through the exhaust fan for harmless discharge, improving the environmental protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a pentaerythritol production evaporation device of the present utility model;

[0023] Figure 2 is a schematic internal structure diagram of the gas-liquid separation tank of the present utility model;

[0024] Figure 3 is a schematic internal structure diagram of the filter pipe of the present utility model.

[0025] In the figure: 1. Bracket; 2. Gas-liquid separation tank; 3. Drain valve; 4. Storage tank; 5. Delivery pipeline; 6. Booster pump; 7. Motor; 8. Transmission shaft; 9. Centrifugal fan blade; 10. Separation cylinder; 11. Filter plate; 12. Exhaust pipe; 13. Filter pipeline; 14. Filter element; 15. Exhaust fan. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-3 , the present invention provides a new technical solution: a pentaerythritol production evaporation device, including a bracket 1, a gas-liquid separation tank 2 is fixedly installed on the inner surface of the bracket 1, and a drain valve 3 is arranged on the lower surface of the gas-liquid separation tank 2;

[0028] Among them, a tail gas treatment device is arranged in the gas-liquid separation tank 2, and the tail gas treatment device includes a storage tank 4, a delivery pipeline 5, a booster pump 6, a motor 7, a transmission shaft 8, a centrifugal fan blade 9, a separation cylinder 10, a filter plate 11, an exhaust pipe 12, a filter pipeline 13, a filter element 14 and an exhaust fan 15.

[0029] Further, the storage tank 4 is arranged on the right surface of the gas-liquid separation tank 2, a delivery pipeline 5 is arranged on the upper surface of the storage tank 4, and the output end of the delivery pipeline 5 communicates with the gas-liquid separation tank 2;

[0030] Among them, the booster pump 6 is arranged on the outer surface of the delivery pipeline 5, and the booster pump 6 is fixedly installed on the upper surface of the storage tank 4.

[0031] Further, the motor 7 is fixedly installed on the upper surface of the gas-liquid separation tank 2, and the transmission shaft 8 is fixedly installed at the lower end of the output end of the motor 7;

[0032] Among them, the centrifugal fan blade 9 is fixedly sleeved on the outer surface of the transmission shaft 8.

[0033] Further, the separation cylinder 10 is fixedly installed in the inner wall of the gas-liquid separation tank 2;

[0034] Among them, the filter plate 11 is arranged in the inner wall of the gas-liquid separation tank 2.

[0035] Further, the exhaust pipe 12 is arranged on the upper surface of the gas-liquid separation tank 2, and a filter pipeline 13 is fixedly installed at the output end of the exhaust pipe 12;

[0036] Among them, a filter element 14 is arranged inside the filter pipeline 13.

[0037] Furthermore, an exhaust fan 15 is arranged at the output end of the filter pipeline 13;

[0038] When the pentaerythritol production evaporation device is in use, the gas-liquid mixture of evaporated pentaerythritol is centrally transported to the storage tank 4. At this time, by starting the booster pump 6, the booster pump 6 generates negative pressure in the conveying pipeline 5. At this time, the gas-liquid mixture of pentaerythritol in the storage tank 4 is extracted through the conveying pipeline 5 and transported to the gas-liquid separation tank 2. At this time, the gas-liquid mixture of pentaerythritol falls into the separation cylinder 10. At this time, by starting the motor 7, the motor 7 outputs power to the transmission shaft 8 fixedly installed at the lower end of the output shaft through operation, causing it to rotate. The transmission shaft 8 drives the centrifugal fan blade 9 fixedly installed at the lower end to rotate. At this time, the gas-liquid mixture of pentaerythritol is dispersed by the centrifugal action. The gas will remain above the separation cylinder 10, while the liquid will impact the inner wall of the separation cylinder 10 and conduct it. At this time, the liquid will be transported to the upper part of the filter plate 11 through the separation cylinder 10. The filter plate 11 filters the separation cylinder 10 and stores it temporarily in the gas-liquid separation tank 2. The pentaerythritol liquid can be centrally discharged by opening the drain valve 3. The pentaerythritol gas will enter the filter pipeline 13 through the exhaust pipe 12. The harmful gas of pentaerythritol is adsorbed by the filter element 14 arranged inside the filter pipeline 13, and it is guided by the exhaust fan 15 for discharge;

[0039] The pentaerythritol production evaporation device can perform swirl gas-liquid separation on pentaerythritol through a centrifugal fan and a separation barrel, separating the gas and liquid in the gas-liquid mixture of pentaerythritol. And after the pentaerythritol liquid is separated, it can be filtered to remove the impurities in it, and the pure pentaerythritol liquid can be recycled, which is more convenient. Moreover, when the pentaerythritol production evaporation device discharges the pentaerythritol gas, it can be filtered by the filter element arranged inside the filter pipeline, adsorb the harmful impurities in the pentaerythritol gas, and be guided by the exhaust fan for harmless discharge, improving the environmental protection performance.

[0040] Working principle: When the pentaerythritol production evaporation device is in use, the gas-liquid mixture of pentaerythritol after evaporation is centrally transported to the storage tank 4. At this time, by starting the booster pump 6, the booster pump 6 generates negative pressure in the conveying pipeline 5. At this time, the gas-liquid mixture of pentaerythritol in the storage tank 4 is extracted through the conveying pipeline 5 and transported to the gas-liquid separation tank 2. At this time, the gas-liquid mixture of pentaerythritol falls into the separation cylinder 10. At this time, by starting the motor 7, the motor 7 outputs power to the transmission shaft 8 fixedly installed at the lower end of the output shaft through operation, causing it to rotate. The transmission shaft 8 drives the centrifugal fan blade 9 fixedly installed at the lower end to rotate. At this time, the gas-liquid mixture of pentaerythritol is dispersed by the centrifugal force. The gas will remain above the separation cylinder 10, while the liquid will impact the inner wall of the separation cylinder 10 and conduct it. At this time, the liquid will be transported to the upper part of the filter plate 11 through the separation cylinder 10. The filter plate 11 filters the separation cylinder 10 and stores it temporarily in the gas-liquid separation tank 2. The pentaerythritol liquid can be centrally discharged by opening the drain valve 3. The pentaerythritol gas will enter the filter pipeline 13 through the exhaust pipe 12. The harmful gas of pentaerythritol is adsorbed by the filter element 14 arranged in the filter pipeline 13 and is guided by the exhaust fan 15 for discharge.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pentaerythritol production evaporation device, comprising a support (1), a gas-liquid separation tank (2) being fixedly mounted on the inner surface of the support (1), characterized in that: A drain valve (3) is provided on the lower surface of the gas-liquid separation tank (2); The gas-liquid separation tank (2) is provided with an exhaust gas treatment device, which comprises a storage box (4), a delivery pipeline (5), a booster pump (6), a motor (7), a transmission shaft (8), a centrifugal fan blade (9), a separation cylinder (10), a filter plate (11), an exhaust pipe (12), a filter pipeline (13), a filter element (14) and an exhaust fan (15).

2. The evaporation device for producing pentaerythritol according to claim 1, characterized in that: The storage box (4) is arranged on the right surface of the gas-liquid separation tank (2), and a delivery pipeline (5) is arranged on the upper surface of the storage box (4), and the output end of the delivery pipeline (5) is in communication with the gas-liquid separation tank (2); The booster pump (6) is arranged on the outer surface of the delivery pipe (5), and the booster pump (6) is fixedly mounted on the upper surface of the storage box (4).

3. The pentaerythritol production evaporation device according to claim 1, characterized in that: The motor (7) is fixedly mounted on the upper surface of the gas-liquid separation tank (2), and the transmission shaft (8) is fixedly mounted on the lower end of the output end of the motor (7); The centrifugal blades (9) are fixedly sleeved on the outer surface of the transmission shaft (8).

4. The pentaerythritol production evaporation device according to claim 1, characterized in that: The separation cylinder (10) is fixedly installed in the inner wall of the gas-liquid separation tank (2); The filter plate (11) is arranged in the inner wall of the gas-liquid separation tank (2).

5. The evaporation device for producing pentaerythritol according to claim 1, characterized in that: The air pipe (12) is arranged on the upper surface of the gas-liquid separation tank (2), and a filter pipe (13) is provided at the output end of the exhaust pipe (12); Wherein, a filter element (14) is arranged in the filter pipe (13).

6. The pentaerythritol production evaporation device according to claim 1, characterized in that: The exhaust fan (15) is arranged at the output end of the filter duct (13).

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