CN117482688B - Process and device for producing high-purity food-grade carbon dioxide by utilizing alcohol fermentation waste gas - Google Patents
Process and device for producing high-purity food-grade carbon dioxide by utilizing alcohol fermentation waste gas Download PDFInfo
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- CN117482688B CN117482688B CN202311444581.3A CN202311444581A CN117482688B CN 117482688 B CN117482688 B CN 117482688B CN 202311444581 A CN202311444581 A CN 202311444581A CN 117482688 B CN117482688 B CN 117482688B
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 37
- 239000007789 gas Substances 0.000 title claims abstract description 37
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000002921 fermentation waste Substances 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title abstract description 22
- 230000008569 process Effects 0.000 title abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims description 57
- 238000007789 sealing Methods 0.000 claims description 52
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000002912 waste gas Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- 244000309464 bull Species 0.000 claims 6
- 230000004151 fermentation Effects 0.000 claims 5
- 238000000855 fermentation Methods 0.000 claims 5
- 230000006978 adaptation Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 5
- 229910052700 potassium Inorganic materials 0.000 abstract description 5
- 239000011591 potassium Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- -1 through the gas bomb Chemical compound 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a process and a device for producing high-purity food-grade carbon dioxide by utilizing alcohol fermentation waste gas, wherein the process and the device comprise a storage tank, one side of the storage tank is provided with an induced draft fan, the output end of the induced draft fan is provided with a cooler, one side of the cooler is provided with a compressor, one side of the compressor is provided with a cold box, and one side of the cold box is provided with a storage tank; the invention eliminates the traditional water washing and potassium washing, adopts the low-temperature condensation technology to pretreat CO, eliminates the drying and purifying tower process, adopts the rectification two-tower skid-mounted technology, introduces the coupling of the low-temperature condensation technology and the low-temperature rectification technology and the process, reduces the traditional water washing, potassium washing and drying adsorption towers, optimizes the process, reduces the equipment, simplifies the process, minimizes the energy consumption, can produce high-purity (more than or equal to 99.9 percent) food-grade carbon dioxide, improves the pretreatment effect of raw gas, has high recovery rate of CO, low power consumption, stable quality of CO products and convenient operation.
Description
Technical Field
The invention relates to the technical field of carbon dioxide preparation, in particular to a process and a device for producing high-purity food-grade carbon dioxide by utilizing alcohol fermentation waste gas.
Background
The carbon oxide has higher civil and industrial values, has wide application in various fields, is a very precious resource, not only can be widely applied to the aspects of petroleum exploitation, metallurgy, welding, low-temperature refrigerants, mechanical manufacturing, artificial rainfall, fire fighting, chemical industry, papermaking, agriculture, food industry, medical and health and the like, but also can be applied to the advanced technological fields of supercritical solvents, bioengineering, laser counting, nuclear industry and the like. Of these all applications, food grade carbon dioxide is most widely used, and carbon dioxide used in sophisticated technologies is also obtained by re-purifying food grade carbon dioxide. Thus, large scale production of food grade carbon dioxide is highly necessary.
The current devices for producing high purity food grade carbon dioxide have certain disadvantages:
1. The existing method for producing carbon dioxide by using alcohol waste gas has high energy consumption and complex process, only achieves industrial grade, adopts the traditional water washing, potassium washing and drying adsorption towers, optimizes more complicated process steps, has more production equipment involved in the process, increases the use of energy consumption, and has low purity of the produced carbon dioxide and low quality of the product;
2. The produced carbon dioxide is mainly stored in a liquid form, and the container for storing the carbon dioxide contains larger pressure, so that a valve on a liquid discharge pipe on the container is subjected to larger pressure, and the valve is worn and leaked due to long-time opening and closing, thereby influencing the environment;
3. simultaneously when transporting carbon dioxide, mainly through the gas bomb, when being connected the fluid-discharge tube on the container of gas bomb and storage carbon dioxide, can appear connecting inseparably, and the gas bomb can appear rocking under the effect of external force, further causes revealing of carbon dioxide.
Disclosure of Invention
The invention aims to provide a process and a device for producing high-purity food-grade carbon dioxide by utilizing alcohol fermentation waste gas, so as to solve the related problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an utilize device of alcohol fermentation waste gas production high purity food grade carbon dioxide, includes the storage tank, one side of storage tank is provided with the draught fan, the output of draught fan is provided with the cooler, one side of cooler is provided with the compressor, one side of compressor is provided with the cold box, one side of cold box is provided with the storage tank, the top of storage tank and cold box is provided with electric heater jointly, electric heater's output is provided with the purifying column, the bottom of storage tank is provided with the valve, the output of valve is provided with discharge mechanism.
Preferably, the discharge mechanism comprises a first discharge pipe, springs, a first fixed plate, a rotating rod, a limiting rod, a second fixed plate, a stop lever, a third fixed plate, a through groove and a wedge plate, wherein the first discharge pipe is positioned at the output end of the valve, the tops of the two sides of the first discharge pipe are provided with the third fixed plate, the two groups of the third fixed plates are rotatably provided with the rotating rod, the bottoms of the rotating rods are provided with the limiting rods, the outer side of the rotating rod is sleeved with the springs, the bottoms of the springs are provided with the first fixed plate, the bottom of the outer side of the rotating rod is sleeved with the second fixed plate, the stop lever is arranged in the second fixed plate, the through grooves are formed in the two ends of the inner side of the stop lever, the two sides of the top of the second fixed plate are provided with the wedge plate, and the bottoms of the outer side of the first discharge pipe are sleeved with the sealing mechanism.
Preferably, the sealing mechanism comprises a second discharging pipe, a first sealing plate, a second sealing plate, a discharging hole, a fixed ring, a telescopic pipe and a stop lever, wherein the second discharging pipe is positioned at the bottom of the outer side of the first discharging pipe, the fixed ring is arranged at the middle position of the inner side of the second discharging pipe, the telescopic pipe is slidably arranged at the middle position of the inner side of the fixed ring, the first sealing plate is arranged at the top of the telescopic pipe, the discharging hole is arranged at the top of the two sides of the telescopic pipe, the second sealing plate is arranged at the middle position of the outer side of the telescopic pipe, four groups of stop levers are uniformly arranged at the bottom of the inner side of the second discharging pipe, and the fixing mechanism is arranged at the edge of the bottom of the telescopic pipe.
Preferably, the fixed establishment includes go-between, centre gripping arc, accomodates groove, actuating lever and spout, the go-between is located the bottom of flexible pipe, accomodate the groove has been seted up to the inboard of go-between, accomodate four groups of spouts have evenly been seted up at the inside top of inslot, four groups the inside slip of spout is provided with the actuating lever, four groups one side of actuating lever is provided with the centre gripping arc.
Preferably, one side of the first fixing plate and one side of the second fixing plate are connected with the second discharging pipe, and the limiting rod is mutually matched with the two groups of through grooves.
Preferably, a sealing ring is arranged at the bottom of the first discharging pipe, and a sealing groove is arranged at the top of the inner side of the second discharging pipe.
Preferably, an annular sealing protrusion is arranged at the edge of the bottom of the first sealing plate, an annular sealing groove is arranged at the edge of the top of the fixing ring, and the annular sealing protrusion is matched with the annular sealing groove.
Preferably, a first annular sealing protrusion is arranged at the edge of the top of the second sealing plate, a second annular sealing groove is arranged at the edge of the bottom of the fixing ring, and the first annular sealing protrusion is matched with the second annular sealing groove.
The application method of the process for producing the high-purity food-grade carbon dioxide by utilizing the alcohol fermentation waste gas comprises the following steps of:
Step one, a step one; firstly, the interior of a storage tank is filled with feed gas, namely waste gas of alcohol, the waste gas of alcohol is conveyed into the interior of a cooler through a draught fan, the waste gas of alcohol cooled by the cooler can separate light wine in the gas, the cooler conveys the gas into the interior of a compressor, and the outlet pressure of the cooler is less than 15KPa and the temperature is within 5 ℃;
Step two: the inside of the compressor (5) is compressed for three times, the outlet pressure of the primary compression is less than 0.25MPa, and the temperature is less than 50 ℃; the outlet pressure of the secondary compression is less than 0.85MPa, and the temperature is less than 115 ℃; the outlet pressure of the third stage compression is less than 2.4MPa, the temperature is less than 120 ℃, and the compressor conveys compressed gas into the cold box;
Step three: the pressure inside the cold box is greater than 2.2MPa, the temperature is less than minus 15 ℃, liquid carbon dioxide is finally formed and is conveyed to the inside of the storage tank for storage through the pipeline, meanwhile, impurity gas contained in the cold box and the storage tank is heated by the electric heater and then is conveyed to the inside of the purifying tower for purification, and then is conveyed to the inside of the cold box for cooling through the pipeline.
Compared with the prior art, the invention provides a process for producing high-purity food-grade carbon dioxide by using alcohol fermentation waste gas, which has the following beneficial effects:
1. The invention eliminates the traditional water washing and potassium washing, adopts the low-temperature condensation technology to pretreat CO, eliminates the drying and purifying tower process, adopts the rectification two-tower skid-mounted technology, introduces the coupling of the low-temperature condensation technology and the low-temperature rectification technology and the process, reduces the traditional water washing, potassium washing and drying adsorption towers, optimizes the process, reduces the equipment, simplifies the process, minimizes the energy consumption, can produce high-purity (more than or equal to 99.9 percent) food-grade carbon dioxide, improves the pretreatment effect of raw gas, has high recovery rate of CO, low power consumption, stable quality of CO products and convenient operation.
2. According to the invention, the sealing mechanism is arranged on the outer side of the first discharging pipe, so that the first sealing plate is matched with the telescopic pipe, the interior of the second discharging pipe can be further sealed, two sealing mechanisms can be formed at the liquid discharge port through the annular sealing bulge on the first sealing plate and the annular sealing groove on the fixing ring, the second discharging pipe can be buckled on the gas storage bottle by sliding between the second discharging pipe and the first discharging pipe, the gas storage bottle is not required to be moved, and time and labor are saved.
3. According to the invention, the bottle mouth of the gas storage bottle can be tightly wrapped through the four groups of clamping arc plates, when the connecting ring is sleeved on the bottle mouth of the gas storage bottle, pressure is continuously applied downwards, so that the second discharging pipe moves downwards, the telescopic pipe and the connecting ring are forbidden to move relative to the bottle mouth of the gas storage bottle, the telescopic pipe and the connecting ring move relative to the second discharging pipe, so that the material outlet moves to the upper part of the fixed ring, the inside of the telescopic pipe is communicated with the inside of the first discharging pipe through the material outlet, carbon dioxide can be discharged into the gas storage bottle at the moment, and meanwhile, the four groups of clamping arc plates are provided with rubber pads, so that the bottle mouth can be tightly clamped, wrapped, fixed and sealed, and leakage is prevented during liquid discharge.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a front cross-sectional view of the discharge mechanism of the present invention;
FIG. 3 is a top view of a second mounting plate of the present invention;
FIG. 4 is a top cross-sectional view of the connecting ring of the present invention;
FIG. 5 is an enlarged view of FIG. 2A in accordance with the present invention;
Fig. 6 is a schematic view of a compact plate of the present invention.
In the figure: 1. a storage tank; 2. a discharging mechanism; 201. a first discharge pipe; 202. a spring; 203. a first fixing plate; 204. a rotating rod; 205. a limit rod; 206. a second fixing plate; 207. a stop lever; 208. a third fixing plate; 209. a through groove; 210. a wedge plate; 3. a sealing mechanism; 301. a second discharge pipe; 302. a first sealing plate; 303. a second sealing plate; 304. a discharge port; 305. a fixing ring; 306. a telescopic tube; 307. a stop lever; 4. a fixing mechanism; 401. a connecting ring; 402. clamping the arc-shaped plate; 403. a storage groove; 404. a driving rod; 405. a chute; 5. a compressor; 6. a purifying tower; 7. an electric heater; 8. a storage tank; 9. a cold box; 10. an induced draft fan; 11. a valve; 12. a cooler.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an utilize device of alcohol fermentation waste gas production high purity food grade carbon dioxide, including storage tank 1, one side of storage tank 1 is provided with draught fan 10, the output of draught fan 10 is provided with cooler 12, one side of cooler 12 is provided with compressor 5, one side of compressor 5 is provided with cold box 9, one side of cold box 9 is provided with storage tank 8, the top of storage tank 8 and cold box 9 is provided with electric heater 7 jointly, electric heater 7's output is provided with purifying column 6, storage tank 8's bottom is provided with valve 11, valve 11's output is provided with discharge mechanism 2.
As a preferable scheme of the present embodiment: the discharging mechanism 2 comprises a first discharging pipe 201, a spring 202, a first fixing plate 203, a rotating rod 204, a limiting rod 205, a second fixing plate 206, a stop lever 207, a third fixing plate 208, a through groove 209 and a wedge plate 210, wherein the first discharging pipe 201 is positioned at the output end of the valve 11, the top of two sides of the first discharging pipe 201 is provided with the third fixing plate 208, the rotating rods 204 are arranged in the two groups of third fixing plates 208, the limiting rods 205 are arranged at the bottoms of the two groups of rotating rods 204, the springs 202 are sleeved outside the rotating rods 204, the first fixing plate 203 is arranged at the bottom of the spring 202, the second fixing plate 206 is sleeved outside the rotating rods 204, the stop lever 207 is arranged in the second fixing plate 206, the through grooves 209 are formed in two ends of the inside of the stop lever 207, the wedge plate 210 is arranged at two sides of the top of the second fixing plate 206, and the sealing mechanism 3 is sleeved at the bottom of the outer side of the first discharging pipe 201.
As a preferable scheme of the present embodiment: sealing mechanism 3 includes second discharging pipe 301, first closing plate 302, second closing plate 303, discharge gate 304, solid fixed ring 305, flexible pipe 306 and pin 307, second discharging pipe 301 is located the bottom in the outside of first discharging pipe 201, the intermediate position department of the inboard of second discharging pipe 301 is provided with solid fixed ring 305, the inside intermediate position department of solid fixed ring 305 slides and is provided with flexible pipe 306, the top of flexible pipe 306 is provided with first closing plate 302, the discharge gate 304 has been seted up at the top of flexible pipe 306 both sides, the intermediate position department in the outside of flexible pipe 306 is provided with second closing plate 303, the bottom of the inboard of second discharging pipe 301 evenly is provided with four groups pin 307, the edge of the bottom of flexible pipe 306 is provided with fixed mechanism 4, can guarantee when flowing back, guarantee sufficient leakproofness.
As a preferable scheme of the present embodiment: as a preferable scheme of the present embodiment: the fixed establishment 4 includes go-between 401, centre gripping arc 402, accomodates groove 403, actuating lever 404 and spout 405, and go-between 401 is located the bottom of flexible pipe 306, and accomodate groove 403 has been seted up to the inboard of go-between 401, accomodates four sets of spouts 405 at the inside top of groove 403 evenly, and the inside slip of four sets of spouts 405 is provided with actuating lever 404, and one side of four sets of actuating levers 404 is provided with centre gripping arc 402, can guarantee the stability of gas bomb.
As a preferable scheme of the present embodiment: one side of the first fixing plate 203 and one side of the second fixing plate 206 are connected with the second discharging pipe 301, and the limiting rod 205 and the two groups of through grooves 209 are mutually matched.
As a preferable scheme of the present embodiment: the bottom of the first discharging pipe 201 is provided with a sealing ring, and the top of the inner side of the second discharging pipe 301 is provided with a sealing groove.
As a preferable scheme of the present embodiment: an annular sealing protrusion is arranged at the edge of the bottom of the first sealing plate 302, an annular sealing groove is arranged at the edge of the top of the fixing ring 305, and the annular sealing protrusion is matched with the annular sealing groove.
As a preferable scheme of the present embodiment: the edge at the top of the second sealing plate 303 is provided with a first annular sealing bulge, the edge at the bottom of the fixing ring 305 is provided with a second annular sealing groove, and the first annular sealing bulge is matched with the second annular sealing groove, so that the sealing performance of liquid discharge is improved.
In embodiment 1, as shown in fig. 1-6, when carbon dioxide in the storage tank 8 needs to be transferred, the gas storage bottle is placed under the valve 11, the second discharging pipe 301 is pulled to move downwards, the connecting ring 401 is driven to move and sleeve the opening of the gas storage bottle, pressure is continuously applied downwards, the second discharging pipe 301 moves downwards, the telescopic pipe 306 and the connecting ring 401 are still at the opening of the gas storage bottle, the telescopic pipe 306 and the connecting ring 401 move relatively to the second discharging pipe 301, the telescopic pipe 306 moves upwards relatively to the fixed ring 305, the discharging hole 304 moves to the upper side of the fixed ring 305, the inside of the telescopic pipe 306 is communicated with the inside of the first discharging pipe 201 through the discharging hole 304, the valve 11 is opened, carbon dioxide in the storage tank 8 is conveyed to the inside of the first discharging pipe 201, carbon dioxide can be discharged into the inside of the telescopic pipe 306 through the discharging hole 304.
In embodiment 2, as shown in fig. 1-6, while embodiment 1 is implemented, the connecting ring 401 moves upward along with the telescopic tube 306 relative to the second discharging tube 301, so that the four groups of driving rods 404 approach to the stop lever 307 and slide mutually with the inclined edges on the stop lever 307, so that the four groups of clamping arc plates 402 approach to and clamp and fix the bottle mouth of the gas bomb, and seal the bottle mouth, the second discharging tube 301 moves downward, and the second fixing plate 206 slides downward on the outer side of the rotating rod 204, so that the through groove 209 on the second fixing plate 206 passes through the limiting rod 205, and when the limiting rod 205 moves to the upper side of the second fixing plate 206, the clamping arc plates 402 tightly wrap the bottle mouth, and at the moment, the rotating rod 204 drives the limiting rod 205 to rotate, so that the limiting rod 205 slides mutually with the inclined edges of the two groups of wedge plates 210, and as the horizontal position of the limiting rod 205 is unchanged, the second discharging tube 301 moves downward, and the rubber pad on the clamping arc plates 402 is pressed and deformed, so that the clamping and sealing effects are further improved.
The application method of the process for producing the high-purity food-grade carbon dioxide by utilizing the alcohol fermentation waste gas comprises the following steps of:
Step one, a step one; firstly, the interior of a storage tank 1 is filled with feed gas, namely waste gas of alcohol, the waste gas of alcohol is conveyed into the interior of a cooler 12 through a draught fan 10, the alcohol waste gas cooled by the cooler 12 can separate light wine in the gas, the cooler 12 conveys the gas into the interior of a compressor 5, the outlet pressure of the cooler 12 is less than 15KPa, and the temperature is within 5 ℃;
Step two: the inside of the compressor 5 is compressed for three times, the outlet pressure of the primary compression is less than 0.25MPa, and the temperature is less than 50 ℃; the outlet pressure of the secondary compression is less than 0.85MPa, and the temperature is less than 115 ℃; the outlet pressure of the third stage compression is less than 2.4MPa, the temperature is less than 120 ℃, and the compressor 5 conveys the compressed gas into the cold box 9;
Step three: the pressure inside the cold box 9 is greater than 2.2MPa, the temperature is less than minus 15 ℃, liquid carbon dioxide is finally formed and is conveyed to the inside of the storage tank 8 for storage through a pipeline, meanwhile, impurity gas contained in the cold box 9 and the storage tank 8 is heated by the electric heater 7 and is conveyed to the inside of the purifying tower 6 for purification, and then is conveyed to the inside of the cold box 9 for cooling through the pipeline.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. Device for producing high-purity food-grade carbon dioxide by using alcohol fermentation waste gas, which comprises a storage tank (1) and is characterized in that: one side of storage tank (1) is provided with draught fan (10), the output of draught fan (10) is provided with cooler (12), one side of cooler (12) is provided with compressor (5), one side of compressor (5) is provided with cold box (9), one side of cold box (9) is provided with storage tank (8), the top of storage tank (8) and cold box (9) is provided with electric heater (7) jointly, the output of electric heater (7) is provided with purifying column (6), the bottom of storage tank (8) is provided with valve (11), the output of valve (11) is provided with discharge mechanism (2),
Wherein: the utility model provides a discharging mechanism (2) is including first discharging pipe (201), spring (202), first fixed plate (203), bull stick (204), gag lever post (205), second fixed plate (206), first pin (207), third fixed plate (208), logical groove (209) and wedge board (210), the output that first discharging pipe (201) is located valve (11), the top of first discharging pipe (201) both sides is provided with third fixed plate (208), two sets of the inside rotation of third fixed plate (208) is provided with bull stick (204), two sets of the bottom of bull stick (204) is provided with gag lever post (205), the outside cover of bull stick (204) is equipped with spring (202), the bottom of spring (202) is provided with first fixed plate (203), the bottom cover in bull stick (204) outside is equipped with second fixed plate (206), first pin (207) have been seted up to the inside both ends of first discharging pipe (201), logical groove (209) have been seted up to the inside both ends of second fixed plate (206), the bottom of bull stick (204) is provided with gag lever post (205), the outside of sealing mechanism (210) is provided with one side of sealing up the top of top (201)
Wherein: sealing mechanism (3) including second discharging pipe (301), first closing plate (302), second closing plate (303), discharge gate (304), solid fixed ring (305), flexible pipe (306) and second pin (307), second discharging pipe (301) are located the bottom in the outside of first discharging pipe (201), the intermediate position department of second discharging pipe (301) inboard is provided with solid fixed ring (305), the inside intermediate position department of solid fixed ring (305) slides and is provided with flexible pipe (306), the top of flexible pipe (306) is provided with first closing plate (302), discharge gate (304) have been seted up at the top of flexible pipe (306) both sides, the intermediate position department in the outside of flexible pipe (306) is provided with second closing plate (303), the bottom of second discharging pipe (301) inboard evenly is provided with four sets of second pins (307), the edge of the bottom of flexible pipe (306) is provided with fixed establishment (4),
Wherein: one side of the first fixing plate (203) and one side of the second fixing plate (206) are connected with the second discharging pipe (301), and the limiting rod (205) and the two groups of through grooves (209) are mutually matched.
2. An apparatus for producing high purity food grade carbon dioxide using waste gas from alcohol fermentation according to claim 1, wherein: the fixing mechanism (4) comprises a connecting ring (401), clamping arc plates (402), storage grooves (403), driving rods (404) and sliding grooves (405), wherein the connecting ring (401) is located at the bottom of a telescopic pipe (306), the storage grooves (403) are formed in the inner side of the connecting ring (401), four groups of sliding grooves (405) are uniformly formed in the top of the storage grooves (403), driving rods (404) are arranged in the sliding grooves (405) in a sliding mode, and clamping arc plates (402) are arranged on one sides of the driving rods (404).
3. An apparatus for producing high purity food grade carbon dioxide using waste gas from alcohol fermentation according to claim 1, wherein: the bottom of first discharging pipe (201) is provided with the sealing ring, the top of second discharging pipe (301) inboard is provided with the seal groove.
4. An apparatus for producing high purity food grade carbon dioxide using waste gas from alcohol fermentation according to claim 1, wherein: an annular sealing protrusion is arranged at the edge of the bottom of the first sealing plate (302), an annular sealing groove is arranged at the edge of the top of the fixing ring (305), and the annular sealing protrusion is matched with the annular sealing groove.
5. An apparatus for producing high purity food grade carbon dioxide using waste gas from alcohol fermentation according to claim 1, wherein: the edge of second closing plate (303) top is provided with first annular seal protruding, the edge of solid fixed ring (305) bottom is provided with the annular seal recess of second, and first annular seal protruding and the annular seal recess adaptation of second.
6. An apparatus for producing high purity food grade carbon dioxide using waste gas from alcohol fermentation according to claim 1, wherein: the cooler (12) is internally provided with a wine discharging pipe which is connected with the storage vessel.
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