CN217459285U - Refining plant of pyroligneous produced by agricultural straw - Google Patents
Refining plant of pyroligneous produced by agricultural straw Download PDFInfo
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- CN217459285U CN217459285U CN202222169639.5U CN202222169639U CN217459285U CN 217459285 U CN217459285 U CN 217459285U CN 202222169639 U CN202222169639 U CN 202222169639U CN 217459285 U CN217459285 U CN 217459285U
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Abstract
The utility model relates to a device for refining pyroligneous produced by agricultural straws, which comprises a raw material tank, a falling film evaporator, a distillation tower, a condensing unit and a product collecting tank which are connected in sequence, wherein the falling film evaporator, the distillation tower, the condensing unit and the product collecting tank are all connected with a vacuumizing device through air pipes, so that each device forms a vacuum environment, and the materials can be conveniently transmitted among the devices without the help of a pump; the falling-film evaporator is connected with a steam generator, the falling-film evaporator comprises a plurality of evaporation tubes, pyroligneous liquor input from the raw material tank flows through the evaporation tubes, and steam input from the steam generator flows out of the evaporation tubes; the condensing unit comprises a first condenser and a second condenser which are sequentially connected in series, a shell pass inlet and a shell pass outlet of the first condenser are both connected with a raw material tank, raw material liquid in the raw material tank is used as cooling liquid, and a shell pass inlet and a shell pass outlet of the second condenser are connected with a cooling water source.
Description
Technical Field
The utility model belongs to the technical field of the pyroligneous is refined, concretely relates to refining plant of pyroligneous produced by agricultural straw.
Background
Agricultural waste resources are wide in source, large in quantity and rich in resources, and are a main component in the field of resource recycling. The crop straws are an important agricultural waste, and have the characteristics of large quantity, seasonal generation, large occupied area and complex treatment. At present, common recycling methods for agricultural straws include straw returning, feed, energy substances, building materials, light industry and textile raw materials.
The wood vinegar is an acidic liquid with acetic acid as a main component, and is prepared by naturally cooling and liquefying smoke emitted in the process of burning wood into charcoal by a traditional preparation method. Therefore, the wood vinegar is prepared by carbonizing trees, converting the energy of the trees into gas and naturally cooling the gas into concentrated liquid. The wood vinegar contains minerals such as K, Ca, Mg, Zn, Ge, Mn, Fe, etc., and vitamins B1 and B2, and can be used in agriculture, feed, industry, commerce, etc. The wood vinegar is used in fertilizer and food industry, has antibacterial, antifungal and antioxidant effects, and can regulate pH value of soil, improve soil environment, and provide abundant organic matter.
The components of the straws are complex, the impurity components are more, the wood vinegar prepared from the straws also contains more impurities, the specific components of the impurities in the wood vinegar are not clear at present due to the fact that the wood vinegar prepared from the agricultural straws is still in the research stage, but the subsequent processing or utilization of the wood vinegar is seriously influenced by the existence of the impurities. How to remove multi-component impurities in the wood vinegar and improve the purity of the wood vinegar is a problem faced by the technicians in the field.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to provide a refining plant of pyroligneous liquor produced by agricultural straws, which aims to solve the technical problem of improving the purity of the pyroligneous liquor.
The device for refining the pyroligneous liquor produced by the agricultural straws comprises a raw material tank, a falling film evaporator, a distillation tower, a condensation unit and a product collection tank which are sequentially connected, wherein the falling film evaporator, the distillation tower, the condensation unit and the product collection tank are all connected with a vacuumizing device through air pipes, so that each device forms a vacuum environment, and materials can be conveniently conveyed among the devices without a pump;
the falling-film evaporator is connected with a steam generator, the falling-film evaporator comprises a plurality of evaporation tubes, pyroligneous liquor input from the raw material tank flows through the evaporation tubes, and steam input from the steam generator flows out of the evaporation tubes;
the condensing unit comprises a first condenser and a second condenser which are sequentially connected in series, a shell pass inlet and a shell pass outlet of the first condenser are both connected with a raw material tank, pyroligneous liquor in the raw material tank is used as cooling liquid, and a shell pass inlet and a shell pass outlet of the second condenser are connected with a cooling water source.
Optionally, the top of the raw material tank is provided with a top cover capable of being opened and closed, the bottom of the raw material tank is provided with a first outlet, and the first outlet is connected with a liquid inlet of the falling film evaporator through a pipeline.
Optionally, the falling-film evaporator comprises an evaporator shell and a plurality of parallel vertical evaporation tubes inside the evaporator shell, the evaporation tubes are uniformly arranged inside the evaporator shell and are parallel to the evaporator shell, and gaps are formed between adjacent evaporation tubes to allow steam to pass through; a steam chamber is arranged above the evaporation pipe, and a first product steam outlet is formed in the side wall of the steam chamber;
the bottom openings of the plurality of evaporation tubes are connected in parallel and then penetrate out of the evaporator shell and are connected with the inlet of the three-way valve, one outlet of the three-way valve is connected with the air pump through an air pipe and used for vacuumizing the inside of each evaporation tube, and the other outlet of the three-way valve is connected with the second outlet at the bottom of the distillation tower through a residual liquid connecting pipe.
Further optionally, a first perforated plate is arranged above the steam air chamber, a second perforated plate is arranged below the steam air chamber, a raw material liquid chamber is arranged above the first perforated plate, and a liquid inlet of the falling film evaporator is arranged on the side wall of the raw material liquid chamber;
the first perforated plate and the second perforated plate are respectively provided with a plurality of through holes, each through hole of the first perforated plate is connected with the top opening of one liquid distribution pipe, the bottom end of each liquid distribution pipe penetrates through the through hole of the second perforated plate and extends into the top of the evaporation pipe, the length of the part, which coincides with the evaporation pipe, of each liquid distribution pipe is preferably 2-20cm, the side wall of each liquid distribution pipe, which coincides with the evaporation pipe, of each liquid distribution pipe is uniformly provided with a plurality of water distribution through holes, and each water distribution through hole penetrates through the side wall of each liquid distribution pipe.
Optionally, the upper part and the lower part of the side wall of the evaporator shell are respectively provided with a steam inlet and a condensed water outlet, and the steam inlet is connected with the steam generator.
Optionally, a first gas-liquid separator is connected between the falling-film evaporator and the distillation tower, a gas inlet of the first gas-liquid separator is connected to the first product steam outlet, a gas outlet of the first gas-liquid separator is connected to the material inlet of the distillation tower and is used for inputting the raw material liquid steam into the distillation tower, and a liquid outlet of the first gas-liquid separator is arranged at the bottom of the first gas-liquid separator and is connected to the residual liquid connecting pipe through a pipeline.
Optionally, a material inlet and a second product steam outlet are arranged at the top of the distillation tower and are respectively used for inputting steam obtained by separation by the first gas-liquid separator and outputting qualified pyroligneous liquor steam after distillation; the bottom of the distillation tower is provided with a second outlet and a vacuumizing port, and the vacuumizing port is connected with the air pump through an air pipe and used for providing a negative pressure environment for the distillation tower.
Optionally, a second gas-liquid separator is connected between the distillation tower and the condensing unit, a gas inlet of the second gas-liquid separator is connected to the second product steam outlet, a gas outlet is connected to the tube pass inlet of the first condenser and used for inputting steam obtained by the distillation tower into the tube pass of the first condenser, and a liquid outlet of the second gas-liquid separator is arranged at the bottom of the second gas-liquid separator and connected to the residual liquid connecting pipe through a pipeline.
Optionally, a tube pass outlet of the first condenser is connected to a tube pass inlet of the second condenser, and a tube pass outlet of the second condenser is connected to the product collection tank.
Optionally, the residual liquid connecting pipe is connected with a slag liquid tank and used for storing impurity liquid.
The refining plant of wood vinegar that agricultural straw produced, following beneficial effect has:
the falling-film evaporator, the distillation tower, the condensing unit and the product collecting tank can form a negative pressure environment, so that materials can be transmitted among all devices without a pump; the condensation unit is provided with two-stage condensation, the first condenser uses the raw material liquid as cooling liquid to primarily condense pyroligneous liquid steam, the second condenser uses cooling water to fully condense, and a cold source is utilized; the residual liquid connecting pipe is communicated with the falling film evaporator and the evaporation tower, the liquid levels of the falling film evaporator and the evaporation tower are dynamically adjusted, and impurity liquid generated in the system can be collected; the falling film evaporator, the first gas-liquid separator, the evaporation tower, the second gas-liquid separator and the condensation unit are sequentially connected to evaporate, separate, distill, re-separate and perform two-stage condensation on the raw material pyroligneous liquor, so that the pyroligneous liquor is fully separated, and the purity of the pyroligneous liquor is improved.
Drawings
FIG. 1 is a schematic structural view of a device for refining pyroligneous liquor produced from agricultural straw;
figure 2 is a schematic view of the upper portion of a falling film evaporator.
In the attached figure, 1-a raw material tank, 2-a falling film evaporator, 3-a distillation tower, 4-a product collecting tank, 5-an evaporation pipe, 6-a first condenser, 7-a second condenser, 8-a first outlet, 9-a liquid inlet, 10-a first product steam outlet, 11-a water cooler, 12-a residual liquid connecting pipe, 13-a second outlet, 14-a liquid distribution pipe, 15-a water distribution through hole, 16-a raw material liquid chamber, 17-a first gas-liquid separator, 18-a material inlet, 19-a second product steam outlet, 20-a second gas-liquid separator, 21-a slag liquid tank, 22-a steam air chamber, 23-a first perforated plate and 24-a second perforated plate.
Detailed Description
The embodiment provides a device for refining pyroligneous liquor produced by agricultural straws, which comprises a raw material tank 1, a falling film evaporator 2, a distillation tower 3, a condensing unit and a product collecting tank 4 which are connected in sequence, wherein the falling film evaporator 2, the distillation tower 3, the condensing unit and the product collecting tank 4 are connected with a vacuumizing device through air pipes, so that each device forms a vacuum environment, and materials are conveniently conveyed among the devices without a pump;
the falling film evaporator 2 is connected with a steam generator, the falling film evaporator 2 comprises a plurality of evaporation tubes 5, pyroligneous liquor input from the raw material tank 1 flows through the evaporation tubes 5, and steam input from the steam generator flows out of the evaporation tubes 5;
the condensing unit comprises a first condenser 6 and a second condenser 7 which are sequentially connected in series, a shell pass inlet and a shell pass outlet of the first condenser 6 are both connected with the raw material tank 1, raw material liquid in the raw material tank 1 is used as cooling liquid, and a shell pass inlet and a shell pass outlet of the second condenser 7 are connected with a cooling water source.
Optionally, a top cover which can be opened and closed is arranged at the top of the raw material tank 1, and raw material pyroligneous liquor can be poured into the raw material tank by opening the top cover; the bottom of the raw material tank 1 is provided with a first outlet 8, and the first outlet 8 is connected with a liquid inlet 9 of the falling film evaporator 2 through a pipeline.
Optionally, the falling-film evaporator 2 comprises an evaporator shell and a plurality of parallel vertical evaporation tubes 5 inside the evaporator shell, the evaporation tubes 5 are uniformly distributed inside the evaporator shell and parallel to the evaporator shell, and gaps are formed between adjacent evaporation tubes 5 to allow steam to pass through; a steam chamber 22 is arranged above the evaporation tube 5, and a first product steam outlet 10 is arranged on the side wall of the steam chamber 22;
the bottom openings of the plurality of evaporation tubes 5 are connected in parallel and then penetrate out of the evaporator shell and are connected with the inlet of a three-way valve, one outlet of the three-way valve is connected with an air pump through an air pipe and is used for vacuumizing the inside of each evaporation tube 5, and the other outlet of the three-way valve is connected with a second outlet 13 at the bottom of the distillation tower 3 through a residual liquid connecting pipe 12.
Further optionally, a first perforated plate 23 is arranged above the steam air chamber 22, a second perforated plate 24 is arranged below the steam air chamber, a raw material liquid chamber 16 is arranged above the first perforated plate 23, that is, the raw material liquid chamber 16 is positioned at the top of the falling film evaporator 2, and a liquid inlet 9 of the falling film evaporator is arranged on the side wall of the raw material liquid chamber 16;
the first perforated plate 23 and the second perforated plate 24 are both provided with a plurality of through holes, each through hole of the first perforated plate 23 is connected with the top opening of one liquid distribution pipe 14, the bottom end of the liquid distribution pipe 14 penetrates through the through hole of the second perforated plate 24 and extends into the top of the evaporation pipe 5, the length of the part overlapped with the evaporation pipe 5 is preferably 2-20cm, namely, the through holes of the first perforated plate 23, the liquid distribution pipe 14, the through holes of the second perforated plate 24 and the evaporation pipe 5 are in one-to-one correspondence from top to bottom, the side wall of the liquid distribution pipe 14 overlapped with the evaporation pipe 5 is uniformly provided with a plurality of water distribution through holes 15, namely, the water distribution through holes 15 are uniformly distributed along the circumferential direction and the vertical direction of the liquid distribution pipe 14, and the water distribution through holes 15 penetrate through the side wall of the liquid distribution pipe 14. Since each of the through holes of the first perforated plate 23 is closely connected to the top opening of one of the liquid distribution pipes 14, and the other part of the first perforated plate 23 is a solid plate through which liquid and gas cannot pass, the first perforated plate 23 can partition the vapor gas chamber 22 and the raw material liquid chamber 16.
Optionally, the upper part and the lower part of the side wall of the evaporator shell are respectively provided with a steam inlet and a condensate outlet, the steam inlet is connected with the steam generator, the condensate outlet is connected with the water cooler or the water tank, the steam generator is connected with the water tank to provide a water source, and the steam generator can be a common steam generator in the market.
The plurality of evaporation tubes 5 of the falling film evaporator 2 of the utility model form a negative pressure environment through the air pump, which can automatically attract the pyroligneous liquor raw material liquid of the raw material tank 1 to enter the raw material liquid chamber 16, each liquid distribution tube 14 and each evaporation tube 5 in turn from the liquid inlet 9 of the falling film evaporator 2, namely the raw material liquid goes through the tube pass; because the negative pressure attracts, raw materials liquid spouts evaporating pipe 5 from water distribution through-hole 15 of cloth liquid pipe 14 for raw materials liquid spouts on the lateral wall of evaporating pipe 5, flows down along evaporating pipe 5 inner wall again, forms the liquid film, and steam generator supplies hot steam for the evaporimeter shell simultaneously, and hot steam passes through the inside raw materials liquid of 5 pipe wall direct heating of evaporating pipe, and cloth liquid pipe 14 makes the heating of raw materials liquid more abundant, and heat utilization is higher. The vapor obtained by evaporating the raw material liquid is input into a subsequent device.
Optionally, a first gas-liquid separator 17 is connected between the falling-film evaporator 2 and the distillation tower 3, a gas inlet of the first gas-liquid separator 17 is connected to the first product steam outlet 10, a gas outlet is connected to the material inlet 18 of the distillation tower 3, and is used for inputting the raw material liquid steam into the distillation tower 3, and a liquid outlet of the first gas-liquid separator 17 is arranged at the bottom of the first gas-liquid separator 17 and is connected to the residual liquid connecting pipe 12 through a pipeline.
Optionally, a material inlet 18 and a second product steam outlet 19 are arranged at the top of the distillation tower 3, and are respectively used for inputting the steam separated by the first gas-liquid separator 17 and outputting qualified pyroligneous liquor steam after distillation; the bottom of the distillation tower 3 is provided with a second outlet 13 and a vacuum-pumping port, and the vacuum-pumping port is connected with the air pump through an air pipe and is used for providing a negative pressure environment for the distillation tower 3. The distillation tower 3 can be a common distillation tower 3 on the market according to the actual situation of the pyroligneous liquor.
Optionally, a second gas-liquid separator 20 is connected between the distillation tower 3 and the condensing unit, a gas inlet of the second gas-liquid separator 20 is connected to the second product steam outlet 19, a gas outlet is connected to a tube side inlet of the first condenser 6, and is used for inputting the steam obtained by the distillation tower 3 into the tube side of the first condenser 6, and a liquid outlet of the second gas-liquid separator 20 is arranged at the bottom of the second gas-liquid separator 20 and is connected to the residual liquid connecting pipe 12 through a pipeline.
The second outlet 13 is communicated with the falling film evaporator 2 through a residual liquid connecting pipe 12, the residual liquid connecting pipe 12 accommodates the liquid of the high boiling point substance discharged from the evaporation pipe 5, the liquid of the high boiling point substance in the distillation tower 3, the liquid separated by the first gas-liquid separator 17 and the liquid separated by the second gas-liquid separator 20, and the four liquids are all derived from the raw pyroligneous liquor and belong to impurity liquid of the raw pyroligneous liquor; the distillation tower 3 and the falling-film evaporator 2 form a communicating vessel which can adjust the liquid level in the distillation tower 3 and the evaporation pipe 5 in a correlated way, so that the four impurity liquids can be communicated with each other, and the four impurity liquids are repeatedly evaporated or distilled in the distillation tower 3 and the evaporation pipe 5, and the pyroligneous liquor is extracted to the maximum extent.
Optionally, a tube side outlet of the first condenser 6 is connected with a tube side inlet of the second condenser 7, a tube side outlet of the second condenser 7 is connected with the product collecting tank 4, and pyroligneous liquor vapor obtained from the top of the distillation tower 3 is subjected to gas-liquid separation and then is sequentially input into the first condenser 6 and the second condenser 7 for sufficient condensation, so that a refined pyroligneous liquor product is obtained. The cooling water source can be selected from a water cooler 11.
Optionally, the residual liquid connecting pipe 12 is connected to a slag liquid tank 21 for storing impurity liquid.
Valves can be arranged on each pipeline and the inlet/outlet of each device according to actual needs to control the opening and closing of each opening and pipeline.
Claims (10)
1. A device for refining pyroligneous produced by agricultural straws is characterized by comprising a raw material tank, a falling film evaporator, a distillation tower, a condensation unit and a product collection tank which are sequentially connected, wherein the falling film evaporator, the distillation tower, the condensation unit and the product collection tank are all connected with a vacuumizing device through air pipes, so that each device forms a vacuum environment, and materials can be conveniently conveyed among the devices without a pump;
the falling-film evaporator is connected with a steam generator, the falling-film evaporator comprises a plurality of evaporation tubes, pyroligneous liquor input from the raw material tank flows through the evaporation tubes, and steam input from the steam generator flows out of the evaporation tubes;
the condensing unit comprises a first condenser and a second condenser which are sequentially connected in series, a shell pass inlet and a shell pass outlet of the first condenser are both connected with a raw material tank, pyroligneous liquor in the raw material tank is used as cooling liquid, and a shell pass inlet and a shell pass outlet of the second condenser are connected with a cooling water source.
2. The apparatus for refining pyroligneous liquor from agricultural stalks as claimed in claim 1, wherein said top of said feed tank is provided with a top cover which can be opened and closed, and the bottom of said feed tank is provided with a first outlet which is connected to the liquid inlet of said falling film evaporator through a pipeline.
3. The apparatus for refining pyroligneous liquor produced from agricultural stalks according to claim 2, wherein said falling-film evaporator comprises an evaporator shell and a plurality of parallel vertical evaporation tubes inside, the evaporation tubes are uniformly arranged inside the evaporator shell and parallel to the evaporator shell, and gaps are formed between adjacent evaporation tubes to allow steam to pass through; a steam chamber is arranged above the evaporation pipe, and a first product steam outlet is formed in the side wall of the steam chamber;
the bottom openings of the plurality of evaporation tubes are connected in parallel and then penetrate out of the evaporator shell and are connected with the inlet of the three-way valve, one outlet of the three-way valve is connected with the air pump through an air pipe and used for vacuumizing the inside of each evaporation tube, and the other outlet of the three-way valve is connected with the second outlet at the bottom of the distillation tower through a residual liquid connecting pipe.
4. The apparatus for refining pyroligneous liquor from agricultural stalks according to claim 3, wherein a first perforated plate is provided above the steam chamber, a second perforated plate is provided below the steam chamber, a raw material liquid chamber is provided above the first perforated plate, and a liquid inlet of the falling film evaporator is provided on a side wall of the raw material liquid chamber;
all be equipped with a plurality of through-hole on first flower orifice plate and the second flower orifice plate, the open-top of a cloth liquid pipe is connected to every through-hole of first flower orifice plate, and the bottom of cloth liquid pipe runs through the through-hole of second flower orifice plate and stretches into the top of evaporating pipe, and the cloth liquid pipe lateral wall with evaporating pipe coincidence portion evenly is equipped with a plurality of water distribution through-hole, and the water distribution through-hole runs through cloth liquid pipe lateral wall.
5. The apparatus for refining pyroligneous liquor produced from agricultural stalks according to claim 3, wherein said evaporator casing has a steam inlet and a condensed water outlet at the upper and lower portions of the side wall thereof, respectively, said steam inlet being connected to said steam generator.
6. The apparatus for refining pyroligneous liquor produced from agricultural straw as defined in claim 3, wherein a first gas-liquid separator is connected between said falling-film evaporator and said distillation tower, the gas inlet of said first gas-liquid separator is connected to said first product vapor outlet, the gas outlet is connected to the material inlet of the distillation tower for feeding the raw material vapor into the distillation tower, the liquid outlet of said first gas-liquid separator is disposed at the bottom of said first gas-liquid separator and connected to said residual liquor connecting pipe via a pipe.
7. The apparatus for refining pyroligneous liquor produced from agricultural stalks according to claim 6, wherein said distillation tower has a material inlet and a second product vapor outlet at the top thereof for inputting the vapor separated by the first gas-liquid separator and outputting the distilled pyroligneous liquor vapor, respectively; the bottom of the distillation tower is provided with a second outlet and a vacuumizing port, and the vacuumizing port is connected with the air pump through an air pipe and used for providing a negative pressure environment for the distillation tower.
8. The apparatus as claimed in claim 7, wherein a second gas-liquid separator is connected between the distillation tower and the condensing unit, a gas inlet of the second gas-liquid separator is connected to the second product vapor outlet, a gas outlet of the second gas-liquid separator is connected to the tube side inlet of the first condenser, and is used for introducing the vapor obtained from the distillation tower into the tube side of the first condenser, and a liquid outlet of the second gas-liquid separator is disposed at the bottom of the second gas-liquid separator and is connected to the residual liquid connecting pipe via a pipeline.
9. The apparatus for refining pyroligneous liquor produced from agricultural stalks according to claim 8, wherein the tube side outlet of the first condenser is connected to the tube side inlet of the second condenser, and the tube side outlet of the second condenser is connected to the product collecting tank.
10. The apparatus for refining pyroligneous liquor from agricultural stalks as claimed in claim 8, wherein said residual liquor connecting pipe is connected to a residue tank for storing impurity liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222169639.5U CN217459285U (en) | 2022-08-18 | 2022-08-18 | Refining plant of pyroligneous produced by agricultural straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222169639.5U CN217459285U (en) | 2022-08-18 | 2022-08-18 | Refining plant of pyroligneous produced by agricultural straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217459285U true CN217459285U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222169639.5U Active CN217459285U (en) | 2022-08-18 | 2022-08-18 | Refining plant of pyroligneous produced by agricultural straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217459285U (en) |
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2022
- 2022-08-18 CN CN202222169639.5U patent/CN217459285U/en active Active
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