CN212468103U - Printing ink production tail gas recovery unit - Google Patents
Printing ink production tail gas recovery unit Download PDFInfo
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- CN212468103U CN212468103U CN202020830841.6U CN202020830841U CN212468103U CN 212468103 U CN212468103 U CN 212468103U CN 202020830841 U CN202020830841 U CN 202020830841U CN 212468103 U CN212468103 U CN 212468103U
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- negative pressure
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Abstract
The utility model discloses a tail gas recovery device for ink production, which comprises an injection pump, an ejector, an absorption tank and a recovery pump, wherein the ejector comprises a negative pressure cylinder and an injection nozzle inserted into the negative pressure cylinder, one end of the negative pressure cylinder is connected with a conical cylinder, one end of the injection nozzle positioned outside the negative pressure cylinder forms a liquid inlet of the ejector, a tail gas inlet is formed on the side wall of the negative pressure cylinder, the big end of the conical cylinder is connected with the negative pressure cylinder, and the small end of the conical cylinder forms a liquid outlet; the inlet of the jet pump is connected to the circulating liquid outlet of the absorption tank, the outlet of the jet pump is connected to the liquid inlet of the ejector, and the liquid outlet of the ejector is connected to the circulating liquid inlet of the absorption tank; a tail gas inlet of the ejector is connected to a tail gas outlet of the reaction kettle; the inlet of the recovery pump is connected to the liquid outlet of the absorption tank, and the outlet of the recovery pump is connected to the recycling port of the reaction kettle. The waste gas that produces when this application can be produced printing ink is retrieved, reduces the waste of raw materials, reduces exhaust treatment system's expense.
Description
Technical Field
The utility model relates to a printing ink production tail gas recovery unit.
Background
In printing ink production, can volatilize a certain amount of tail gas in the reation kettle, these tail gases contain the organic matter, need carry out recovery processing to avoid causing the influence to the surrounding environment, among the current tail gas treatment process, generally directly connect this part of tail gas to send into exhaust treatment device and handle, actually, this part volatile gas is the volatile matter of printing ink raw materials, and non-accessory substance treats this part volatile gas as waste gas, has not only increased the treatment cost of exhaust treatment system, still causes a certain amount of raw materials loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reduce the outer discharge capacity of volatile gas, reduce exhaust-gas treatment system's treatment cost, specific technical scheme is as follows:
a tail gas recovery device for ink production comprises an injection pump, an injector, an absorption tank and a recovery pump, wherein the injector comprises a negative pressure cylinder and an injection nozzle, one end of the injection nozzle is inserted into an inner cavity of the negative pressure cylinder from one end of the negative pressure cylinder along the axis of the negative pressure cylinder, the other end of the negative pressure cylinder is connected with a conical cylinder, one end of the injection nozzle, which is positioned outside the negative pressure cylinder, forms a liquid inlet of the injector, a tail gas inlet is formed on the side wall of the negative pressure cylinder, the large end of the conical cylinder is connected with the negative pressure cylinder, and the small end of the conical cylinder forms a liquid outlet;
the absorption tank is provided with a circulating liquid inlet, a circulating liquid outlet, a liquid outlet and an exhaust port; a tail gas outlet and a recycling port are arranged on the top cover of the reaction kettle;
the inlet of the jet pump is connected to the circulating liquid outlet of the absorption tank, the outlet of the jet pump is connected to the liquid inlet of the ejector, and the liquid outlet of the ejector is connected to the circulating liquid inlet of the absorption tank; the tail gas inlet of the ejector is connected to the tail gas outlet of the reaction kettle;
the inlet of the recovery pump is connected to the liquid outlet of the absorption tank, and the outlet of the recovery pump is connected to the recycling port of the reaction kettle. Preferably, the liquid material for ink is vegetable oil.
The utility model discloses when using, the sprayer produces the negative pressure, in sucking reation kettle's tail gas the sprayer, then enters into the absorption tank, and most raw materials composition in the tail gas is absorbed to the liquid raw materials for the printing ink in the absorption tank, then returns in reation kettle through the recycle pump, retrieves, reduces the waste of raw materials, has also reduced exhaust-gas treatment system's expense.
Further, a straight pipe section is arranged at the tail end of the spray nozzle. The straight pipe section is favorable for spraying water to form stable liquid flow, reduces the generation of vortex and ensures the negative pressure effect.
Further, the jet pump is a centrifugal water pump with a head of 40-50 meters of water column. The water pump with the water column lift of 40-50 meters can ensure the negative pressure effect generated by the ejector.
Further, the adsorption tank is filled with active carbon and communicated with an exhaust port of the adsorption tank. Because the harmful components in the tail gas absorbed by the absorption tank are very greatly adsorbed by the activated carbon, the emission can reach the standard, other more complicated waste gas treatment methods are avoided, and the activated carbon can be directly incinerated after the activated carbon is saturated in adsorption.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Referring to fig. 1, an ink production tail gas recovery device includes an injection pump 20, an injector 30, an absorption tank 40 and a recovery pump 50, where the injector 30 includes a negative pressure cylinder 36 and an injection nozzle 35, one end of the injection nozzle 35 is inserted into an inner cavity of the negative pressure cylinder from one end of the negative pressure cylinder along an axis 38 of the negative pressure cylinder 36, the other end of the negative pressure cylinder 36 is connected with a conical cylinder 33, one end of the injection nozzle 35 located outside the negative pressure cylinder forms a liquid inlet 31 of the injector, a tail gas inlet 32 is formed on a side wall of the negative pressure cylinder, a large end of the conical cylinder 33 is connected with the negative pressure cylinder, and a small end of the conical cylinder 33 forms a liquid outlet 34. At the end of the spray nozzle 35 a straight pipe section 37 is provided.
The side wall of the absorption tank 40 is provided with a circulation liquid outlet 42 and a liquid discharge port 44, and the top of the absorption tank 40 is provided with a circulation liquid inlet 43 and a gas discharge port 45. The absorption tank contains vegetable oil as a liquid material for ink.
The inlet of the ejector pump 20 is connected to the circulating liquid outlet 42 of the absorption tank, the outlet of the ejector pump 20 is connected to the liquid inlet 31 of the ejector, and the liquid outlet 34 of the ejector is connected to the circulating liquid inlet 43 of the absorption tank.
A top cover 11 of the reaction kettle 10 is provided with an exhaust gas outlet 12 and a recycling outlet 13.
The tail gas inlet 32 of the ejector is connected to the tail gas outlet 12 of the reaction kettle;
the inlet of the recovery pump is connected with the liquid outlet 44 of the absorption tank, and the outlet of the recovery pump is connected with the recycling port 13 of the reaction kettle.
In this embodiment, the ejector pump 20 is a centrifugal water pump with a head of 40-50 meters of water.
An adsorption tank 47 is installed on the top of the absorption tank, the adsorption tank is communicated with an exhaust port 45 of the absorption tank, activated carbon is filled in the adsorption tank 47, and exhaust gas after the activated carbon adsorption is discharged from a clean gas outlet 48 on the top of the adsorption tank.
Claims (5)
1. The tail gas recovery device for ink production is characterized by comprising an injection pump, an injector, an absorption tank and a recovery pump, wherein the injector comprises a negative pressure cylinder and an injection nozzle, one end of the injection nozzle is inserted into an inner cavity of the negative pressure cylinder from one end of the negative pressure cylinder along the axis of the negative pressure cylinder, the other end of the negative pressure cylinder is connected with a conical cylinder, one end of the injection nozzle, which is positioned outside the negative pressure cylinder, forms a liquid inlet of the injector, the side wall of the negative pressure cylinder is provided with a tail gas inlet, the large end of the conical cylinder is connected with the negative pressure cylinder, and the small head end of the conical cylinder forms a liquid outlet;
the absorption tank is provided with a circulating liquid inlet, a circulating liquid outlet, a liquid outlet and an exhaust port; a tail gas outlet and a recycling port are arranged on the top cover of the reaction kettle; the absorption tank is filled with liquid raw materials for ink;
the inlet of the jet pump is connected to the circulating liquid outlet of the absorption tank, the outlet of the jet pump is connected to the liquid inlet of the ejector, and the liquid outlet of the ejector is connected to the circulating liquid inlet of the absorption tank; the tail gas inlet of the ejector is connected to the tail gas outlet of the reaction kettle;
the inlet of the recovery pump is connected to the liquid outlet of the absorption tank, and the outlet of the recovery pump is connected to the recycling port of the reaction kettle.
2. The ink production tail gas recovery device according to claim 1, wherein a straight pipe section is provided at an end of the ejection nozzle.
3. The ink production tail gas recovery device of claim 1, wherein the jet pump is a centrifugal water pump with a head of 40-50 meters of water.
4. The ink production tail gas recovery device according to claim 1,
the liquid raw material for the ink is vegetable oil.
5. The ink production tail gas recovery device according to claim 1,
still include an adsorption tank, be filled with the active carbon in this adsorption tank, this adsorption tank intercommunication adsorption tank's gas vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830841.6U CN212468103U (en) | 2020-05-18 | 2020-05-18 | Printing ink production tail gas recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830841.6U CN212468103U (en) | 2020-05-18 | 2020-05-18 | Printing ink production tail gas recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212468103U true CN212468103U (en) | 2021-02-05 |
Family
ID=74461198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020830841.6U Active CN212468103U (en) | 2020-05-18 | 2020-05-18 | Printing ink production tail gas recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212468103U (en) |
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2020
- 2020-05-18 CN CN202020830841.6U patent/CN212468103U/en active Active
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