Liquid carbon dioxide recovery apparatus

Abstract

The application discloses a liquid carbon dioxide recovery treatment device and belongs to the technical field of carbon dioxide recovery. The liquid carbon dioxide recovery treatment device comprises a cloth bag type dust removal mechanism, a first communicating pipeline is arranged on the top of one side of the cloth bag type dust removal mechanism, a cooling and cooling mechanism is arranged on the other end of the first communicating pipeline, a second communicating pipeline is arranged on the other side of the cooling and cooling mechanism, a desulfurization and impurity removal mechanism is arranged on the other end of the second communicating pipeline, a third communicating pipeline is arranged on the top of one side of the desulfurization and impurity removal mechanism, a primary compression mechanism is arranged on the other end of the third communicating pipeline, and a driving device is arranged on one side of the primary compression mechanism. The cooling and cooling mechanism is designed to remove part of the water in the waste gas. After the waste gas is cooled, the waste gas will not cause more water evaporation after entering the desulfurization and impurity removal mechanism, thereby reducing the water in the waste gas and facilitating subsequent compression treatment.

Description

Technical Field

[0001] This invention belongs to the field of carbon dioxide recovery technology, and specifically relates to a liquid carbon dioxide recovery and treatment device. Background Technology

[0002] Liquid carbon dioxide recovery and treatment is a circular economy approach that transforms industrial waste gas into valuable resources. It first removes impurities from waste gas emitted by chemical plants, alcohol factories, and other industrial facilities through purification processes such as dust removal, desulfurization, and drying, yielding high-purity carbon dioxide gas. Subsequently, a multi-stage compressor is used to pressurize the gas, combined with interstage cooling, converting the gas into a liquid state under high pressure and ambient temperature. This process significantly reduces greenhouse gas emissions and allows the recovered liquid carbon dioxide to be used as an additive in carbonated beverages, welding shielding gas, dry ice feedstock, or oilfield extraction aids, achieving a win-win situation for both environmental protection and economic benefits.

[0003] When collecting carbon dioxide from industrial waste gas, existing treatment devices often fail to collect pure gases. During processes such as dust removal and desulfurization, a certain amount of water vapor is often present. Treating the water vapor in the waste gas is particularly critical. When the waste gas is first discharged, the temperature is high. If it is cooled at this time, some of the water vapor in the waste gas will liquefy, which can easily cause blockages during the dust removal process. At the same time, the subsequent purification processes such as desulfurization are often accompanied by an increase in water vapor. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a liquid carbon dioxide recovery and treatment device.

[0005] The technical solution adopted to solve the above technical problems is: to provide a liquid carbon dioxide recovery and treatment device, including a bag filter dust removal mechanism, a first connecting pipe installed on the top of one side of the bag filter dust removal mechanism, a cooling mechanism installed at the other end of the first connecting pipe, and a second connecting pipe installed on the other side of the cooling mechanism. The other end of the second connecting pipe is provided with a desulfurization and impurity removal mechanism. A third connecting pipe is installed on the top of one side of the desulfurization and impurity removal mechanism. The other end of the third connecting pipe is provided with a primary compression mechanism. A driving device is provided on one side of the primary compression mechanism.

[0006] Furthermore, the bag filter dust removal mechanism includes a supporting base frame, a mechanism housing fixedly connected to the top of the supporting base frame, a collection hopper fixedly connected to the bottom of the mechanism housing, a sealing top cover fixedly connected to the top of the mechanism housing, a bag filter assembly installed on the inner wall of the mechanism housing, a pulse backflushing assembly installed on one side of the top of the mechanism housing, a first air inlet fixedly connected to the top of the outer wall of one side of the mechanism housing, and a guide baffle corresponding to the first air inlet fixedly connected to the inner wall of the mechanism housing.

[0007] Through the above technical solution, industrial waste gas is discharged into the first inlet pipe through the exhaust pipe, and then enters the interior of the housing. Larger dust particles fall directly into the collection hopper. The waste gas passes through multiple filter bags for filtration. Dust remains on the outer surface of the filter bags in the filter assembly. The waste gas passes through the filter bags and is finally discharged through the first connecting pipe. Subsequently, when dust accumulates to a certain extent, a high-pressure airflow is injected into the interior of each filter bag through the pulse back-flushing assembly, causing the dust on the surface of the filter bags to fall into the collection hopper. At the same time, when the high-temperature waste gas is inside the bag filter dust removal mechanism, the moisture in it is in a gaseous state due to the high temperature, thus preventing the moisture from combining with the dust and adhering to the surface of the filter bags in the filter assembly.

[0008] Furthermore, the guide baffle is disposed between the bag filter assembly and the first air inlet, and the multiple bags in the bag filter assembly correspond one-to-one with the multiple high-pressure jet ports in the pulse backflushing assembly.

[0009] Through the above technical solution, the filter bags enter the bag filter assembly last through the bottom of the guide baffle under the obstruction of the guide baffle, ensuring that each bag in the bag filter assembly can be automatically cleaned by high-pressure pulse jet.

[0010] Furthermore, the cooling mechanism includes a double-ended connecting shell disposed at one end of the first connecting pipe. A cooling sleeve is disposed on the inner wall of the double-ended connecting shell. Port sealing plates are fixedly connected to both ends of the inner wall of the cooling sleeve. Multiple cooling pipes pass through between the two port sealing plates. Multiple flow-guiding semi-partitions are fixedly connected between the multiple cooling pipes and the inner wall of the cooling sleeve. Return pipes are fixedly connected to both sides of the top of the cooling sleeve. A liquid inlet pipe is fixedly connected to the center of the top of the cooling sleeve. A drive mechanism is installed on one of the return pipes. The pump has a liquid distribution box fixedly connected to the other end of each of the two return pipes. A set of transmission branch pipes is fixedly connected to each of the two liquid distribution boxes. Two liquid distribution hollow plates are fixedly connected to each of the two sets of transmission branch pipes. An integral connecting plate is fixedly connected to the two sets of liquid distribution hollow plates on their adjacent sides. An exhaust pipe is fixedly connected to the top of each set of liquid distribution hollow plates. Multiple heat dissipation liquid distribution plates are fixedly connected between the two sets of liquid distribution hollow plates. A mounting housing is fixedly connected between the two integral connecting plates. A fan assembly is fixedly connected to one side of the inner wall of the mounting housing.

[0011] Through the above technical solution, the dust-removed exhaust gas enters the cooling mechanism through the first connecting pipe. In the cooling mechanism, coolant is added through the liquid filling pipe until the entire cooling mechanism is filled and the liquid level is higher than the mounting shell. The coolant is continuously circulated by the drive pump. The low-temperature coolant flows inside the cooling shell and forms a flow path through the guide semi-partition, allowing the coolant to fully contact multiple cooling pipes. The high-temperature exhaust gas passes through multiple cooling pipes, and the water in the gas condenses into water droplets after cooling. Finally, it flows out through the small holes at the bottom of both sides of the double-ended connecting shell. The condensate flows sequentially through the return pipe, the liquid distribution box, the transmission branch pipe and the liquid distribution hollow plate into the heat dissipation liquid distribution plate, and transfers heat to the surface of the heat dissipation liquid distribution plate of the metal structure. Finally, the heat on the surface of the heat dissipation liquid distribution plate is blown out by the fan assembly, achieving cooling.

[0012] Furthermore, the number of the multiple flow guiding half-partitions is three, the number of the two sets of liquid separating hollow plates is four, and the two sets of transmission branch pipes are distributed in four rows, with each row corresponding to a liquid separating hollow plate.

[0013] Through the above technical solution, three flow-guiding half-partitions, together with two port sealing plates, can form a flow channel inside the cooling jacket, allowing the coolant to come into more full contact with multiple cooling pipes, thereby improving cooling efficiency.

[0014] Furthermore, the desulfurization and impurity removal mechanism includes a housing, with two arc-shaped sealing plates rotatably connected to one side of the outer wall of the housing, a first packing layer and a second packing layer respectively provided on the inner wall of the housing, two spraying assemblies installed on the housing, and a liquid outlet fixedly connected to the bottom of the housing.

[0015] With the above technical solution, after the exhaust gas is cooled, it enters the desulfurization and impurity removal mechanism through the second connecting pipe, and passes through the first packing layer and the second packing layer in sequence. The exhaust gas is desulfurized by the alkaline solution sprayed by the two spray components. Since the exhaust gas is cooled, it will not generate a lot of water vapor inside the desulfurization and impurity removal mechanism.

[0016] Furthermore, the two arc-shaped sealing plates correspond one-to-one with the first filler layer and the second filler layer.

[0017] With the above technical solution, when replacing the first and second packing layers, the arc-shaped sealing plate can be opened.

[0018] Furthermore, the third connecting pipe has a bifurcated double-pipe structure at the end near the primary compression mechanism.

[0019] Through the above technical solution, the bifurcated double-pipe structure allows carbon dioxide gas to enter from both sides, and finally be compressed by the primary compression mechanism and output from the middle pipe for subsequent processing steps.

[0020] Furthermore, the primary compression mechanism includes a compression housing assembly, with a connecting shaft rotatably connected inside the compression housing assembly, and multiple impellers fixedly connected to the outer wall of the connecting shaft.

[0021] Through the above technical solution, the gas enters both sides of the bottom of the compression housing assembly through the third connecting pipe, and then, under the centrifugal action of the driving device driving the connecting shaft and multiple impellers, the carbon dioxide is initially compressed. Subsequent operations such as cooling and compression of the gas are required to finally form liquid carbon dioxide.

[0022] The beneficial effects of the present invention are as follows: (1) By designing a cooling mechanism, the present invention prevents the high temperature of the exhaust gas from combining with the dust on the bag filter assembly, thus maintaining a high temperature. Subsequently, by adding a cooling mechanism between the bag dust removal mechanism and the desulfurization and impurity removal mechanism, the exhaust gas can be effectively cooled down first and some of the moisture can be removed. After the cooled exhaust gas enters the desulfurization and impurity removal mechanism, it will not cause a lot of water evaporation, thereby reducing the moisture in the exhaust gas and facilitating subsequent compression treatment. (2) By designing a bag dust removal mechanism, the present invention can effectively achieve dust treatment. After the dust accumulates to a certain extent, the pulse back-blowing assembly fills the inside of each bag with high-pressure airflow, causing the dust on the surface of the bag to fall into the collection hopper for continuous use. At the same time, by designing a desulfurization and impurity removal mechanism, the exhaust gas enters the desulfurization and impurity removal mechanism through the second connecting pipe after cooling down, and passes through the first packing layer and the second packing layer in sequence. The alkaline solution sprayed by the two spraying components desulfurizes the exhaust gas. Since the exhaust gas has been cooled down, it will not generate a lot of water vapor inside the desulfurization and impurity removal mechanism. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the bag filter mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the bag filter mechanism of the present invention; Figure 5 This is a schematic diagram of the cooling mechanism of the present invention; Figure 6 This is an exploded structural diagram of the cooling mechanism of the present invention; Figure 7 This is a schematic diagram of the flow-guiding semi-partition structure of the present invention; Figure 8 This is a schematic diagram of the coolant flow direction structure inside the cooling jacket of the present invention; Figure 9 This is a schematic diagram of the desulfurization and impurity removal mechanism of the present invention; Figure 10 This is a schematic diagram of the longitudinal cross-sectional structure of the desulfurization and impurity removal mechanism of the present invention; Figure 11 This is a schematic diagram of the longitudinal cross-sectional structure of the desulfurization and impurity removal mechanism of the present invention; Figure 12 This is a schematic diagram of the third connecting pipe structure of the present invention; Figure 13 This is a schematic diagram of the internal structure of the primary compression mechanism of the present invention.

[0024] Reference numerals: 1. Baghouse dust collector; 101. Support frame; 102. Housing; 103. Collection hopper; 104. Sealed top cover; 105. Bag filter assembly; 106. Pulse backflushing assembly; 107. First air inlet; 108. Guide baffle; 2. First connecting pipe; 3. Cooling mechanism; 301. Double-ended connecting housing; 302. Cooling jacket; 303. Port sealing plate; 304. Cooling pipe; 305. Guide semi-baffle; 306. Return pipe; 307. Liquid filling pipe; 308. Drive pump; 309. Dispensing box; 310. Transmission branch pipe; 311. Integrated connecting plate; 312. Liquid distribution hollow plate; 313. Exhaust pipe; 314. Heat dissipation liquid distribution plate; 315. Mounting housing; 316. Fan assembly; 4. Second connecting pipe; 5. Desulfurization and impurity removal mechanism; 501. Mechanism housing; 502. Arc-shaped sealing plate; 503. First packing layer; 504. Second packing layer; 505. Spray assembly; 506. Liquid outlet; 6. Third connecting pipe; 7. Primary compression mechanism; 701. Compression housing assembly; 702. Connecting shaft; 703. Impeller; 8. Drive device. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] like Figures 1-4As shown, this embodiment of a liquid carbon dioxide recovery and treatment device includes a bag filter mechanism 1. The bag filter mechanism 1 includes a support base 101, a housing 102 fixedly connected to the top of the support base 101, a collection hopper 103 fixedly connected to the bottom of the housing 102, a sealing top cover 104 fixedly connected to the top of the housing 102, a bag filter assembly 105 installed on the inner wall of the housing 102, a pulse backflushing assembly 106 installed on one side of the top of the housing 102, a first air inlet 107 fixedly connected to the top of one side of the outer wall of the housing 102, and a guide baffle 108 corresponding to the first air inlet 107 fixedly connected to the inner wall of the housing 102. Industrial waste gas is discharged to the first air inlet 107 through the discharge pipe and then enters the interior of the housing 102. Larger dust particles fall directly into the collection hopper 103. The waste gas passes through multiple bags for filtration, and the dust remains in the collection hopper 103. The exhaust gas passes through the outer surface of the filter bags in the bag filter assembly 105 and is finally discharged through the first connecting pipe 2. Subsequently, when dust accumulates to a certain extent, the pulse backflushing assembly 106 injects high-pressure airflow into the interior of each filter bag, causing the dust on the surface of the filter bag to fall into the collection hopper 103. At the same time, when the high-temperature exhaust gas is inside the bag dust collector 1, the moisture in it is in a gaseous state due to the high temperature, thus preventing the moisture and dust from combining and adhering to the surface of the filter bags in the bag filter assembly 105. The guide baffle 108 is set between the bag filter assembly 105 and the first air inlet 107. The multiple filter bags in the bag filter assembly 105 correspond one-to-one with the multiple high-pressure jet nozzles in the pulse backflushing assembly 106. Under the obstruction of the guide baffle 108, the gas finally enters the bag filter assembly 105 through the bottom of the guide baffle 108, ensuring that each filter bag in the bag filter assembly 105 can be automatically cleaned by high-pressure pulse jet.

[0027] like Figures 1-8As shown, a first connecting pipe 2 is installed on the top of one side of the bag filter dust collector 1. A cooling mechanism 3 is installed at the other end of the first connecting pipe 2. The cooling mechanism 3 includes a double-ended connecting housing 301 located at one end of the first connecting pipe 2. A cooling sleeve 302 is provided on the inner wall of the double-ended connecting housing 301. Port sealing plates 303 are fixedly connected to both ends of the inner wall of the cooling sleeve 302. Multiple cooling pipes 304 pass through between the two port sealing plates 303. Multiple flow guiding half-partitions 305 are fixedly connected between the multiple cooling pipes 304 and the inner wall of the cooling sleeve 302. Return pipes 306 are fixedly connected to both sides of the top of the cooling sleeve 302. A liquid adding pipe 307 is fixedly connected to the center of the top of the cooling sleeve 302. A drive pump 308 is installed on one of the return pipes 306. A distribution box 309 is fixedly connected to the other end of both return pipes 306. A set of transmission branch pipes 310 is fixedly connected to each of the two distribution boxes 309. Two hollow distribution plates 312 are fixedly connected to each of the two sets of transmission branch pipes 310. An integral connecting plate 311 is fixedly connected to the two hollow distribution plates 312 on their adjacent sides. An exhaust pipe 313 is fixedly connected to the top of each hollow distribution plate 312. Multiple heat dissipation distribution plates 314 are fixedly connected between the two hollow distribution plates 312. A mounting housing 315 is fixedly connected between the two integral connecting plates 311. A fan assembly 316 is fixedly connected to one side of the inner wall of the mounting housing 315. The exhaust gas after dust removal... Coolant enters the cooling mechanism 3 through the first connecting pipe 2. In the cooling mechanism 3, coolant is added through the liquid filling pipe 307 until the entire cooling mechanism 3 is filled and the liquid level is higher than the mounting housing 315. The driving pump 308 continuously drives the coolant to circulate. The low-temperature coolant flows inside the cooling jacket 302 and forms a flow path through the guide semi-partition 305, ensuring full contact between the coolant and the multiple cooling pipes 304. High-temperature exhaust gas passes through the multiple cooling pipes 304; after cooling, the moisture in the gas condenses into water droplets, which finally flow out through small holes at the bottom of both sides of the double-ended connecting housing 301. The condensate flows sequentially through the return pipe 306, the distribution box 309, and the transmission branch pipe 310. The liquid-distributing hollow plate 312 enters the heat dissipation distribution plate 314 and transfers heat to the surface of the metal structure heat dissipation distribution plate 314. Finally, the heat on the surface of the heat dissipation distribution plate 314 is blown out by the fan assembly 316 to achieve cooling. There are three flow-guiding half-partitions 305 and four flow-distributing hollow plates 312 in each group. The two sets of transmission branch pipes 310 are arranged in four rows, and each row corresponds one-to-one with the flow-distributing hollow plate 312. The three flow-guiding half-partitions 305, together with the two port sealing plates 303, can form a flow channel inside the cooling jacket 302, so that the coolant can come into more full contact with the multiple cooling pipes 304, thereby improving the cooling efficiency. A second connecting pipe 4 is installed on the other side of the cooling mechanism 3.

[0028] like Figures 1-11 As shown, a desulfurization and impurity removal mechanism 5 is provided at the other end of the second connecting pipe 4. The desulfurization and impurity removal mechanism 5 includes a mechanism housing 501. Two arc-shaped sealing plates 502 are rotatably connected to one side of the outer wall of the mechanism housing 501. A first packing layer 503 and a second packing layer 504 are respectively provided on the inner wall of the mechanism housing 501. Two spraying components 505 are installed on the mechanism housing 501. A liquid outlet 506 is fixedly connected to the bottom of the mechanism housing 501. After the exhaust gas is cooled, it enters the desulfurization and impurity removal mechanism 5 through the second connecting pipe 4 and passes through the first packing layer 503 and the second packing layer 504 in sequence. The alkaline solution sprayed by the two spraying components 505 desulfurizes the exhaust gas. Since the exhaust gas is cooled, a lot of water vapor will not be generated inside the desulfurization and impurity removal mechanism 5. The two arc-shaped sealing plates 502 correspond one-to-one with the first packing layer 503 and the second packing layer 504. When replacing them later, the arc-shaped sealing plates 502 can be opened to replace the first packing layer 503 and the second packing layer 504.

[0029] like Figures 1-13 As shown, a third connecting pipe 6 is installed on the top of one side of the desulfurization and impurity removal mechanism 5. The third connecting pipe 6 has a bifurcated double pipe structure at one end near the primary compression mechanism 7. The bifurcated double pipe structure allows carbon dioxide gas to enter from both sides and finally be compressed by the primary compression mechanism 7 and output from the pipe between them for subsequent processing steps. The other end of the third connecting pipe 6 is provided with the primary compression mechanism 7. The primary compression mechanism 7 includes a compression housing assembly 701. A connecting shaft 702 is rotatably connected inside the compression housing assembly 701. Multiple impellers 703 are fixedly connected to the outer wall of the connecting shaft 702. Gas enters the two sides of the bottom of the compression housing assembly 701 through the third connecting pipe 6. Then, under the centrifugal action of the connecting shaft 702 and multiple impellers 703 driven by the drive device 8, the carbon dioxide is initially compressed. Subsequent cooling and compression operations are required for the gas to finally form liquid carbon dioxide. A drive device 8 is provided on one side of the primary compression mechanism 7.

[0030] The working principle of this embodiment is as follows: Industrial waste gas is discharged to the first air inlet 107 through the discharge pipe, and then enters the interior of the housing 102. Under the obstruction of the guide baffle 108, it finally enters the bag filter assembly 105 through the bottom of the guide baffle 108. Larger dust particles fall directly into the collection hopper 103. The waste gas passes through multiple bags for filtration. The dust remains on the outer surface of the bags in the bag filter assembly 105. The waste gas passes through the bags and is finally discharged through the first connecting pipe 2. Subsequently, when the dust accumulates to a certain extent, the pulse back-blowing assembly 106 fills the interior of each bag with high-pressure airflow, causing the dust on the surface of the bags to fall into the collection hopper 103. After dust removal, the exhaust gas enters the cooling mechanism 3 through the first connecting pipe 2. In the cooling mechanism 3, the coolant is continuously driven by the drive pump 308 to achieve circulation. The low-temperature coolant flows inside the cooling jacket 302 and forms a flow path through the guide semi-partition 305, so that the coolant fully contacts the multiple cooling pipes 304. The high-temperature exhaust gas passes through the multiple cooling pipes 304. After the gas is cooled, the water in it will condense into water droplets and finally flow out through the small holes at the bottom of both sides of the double-ended connecting shell 301. The condensate flows through the return pipe 306, the liquid distribution box 309, the transmission branch pipe 310 and the liquid distribution hollow plate 312 into the heat dissipation liquid distribution plate 314 and transfers the heat to the surface of the metal structure heat dissipation liquid distribution plate 314. Finally, the heat on the surface of the heat dissipation liquid distribution plate 314 is blown out by the fan assembly 316 to achieve cooling. After the exhaust gas is cooled, it enters the desulfurization and impurity removal mechanism 5 through the second connecting pipe 4, and passes through the first packing layer 503 and the second packing layer 504 in sequence. The exhaust gas is desulfurized by the alkaline solution sprayed by the two spray components 505. Since the exhaust gas has been cooled, it will not generate a lot of water vapor inside the desulfurization and impurity removal mechanism 5. Finally, the gas enters the two sides of the bottom of the compression housing assembly 701 through the third connecting pipe 6. Then, under the centrifugal action of the drive device 8 driving the connecting shaft 702 and the multi-bladed impeller 703, the carbon dioxide is initially compressed. The gas needs to be cooled and compressed again afterward to finally form liquid carbon dioxide.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A liquid carbon dioxide recovery and treatment device, comprising a bag filter (1), characterized in that: A first connecting pipe (2) is installed on the top of one side of the bag filter (1), a cooling mechanism (3) is installed at the other end of the first connecting pipe (2), and a second connecting pipe (4) is installed on the other side of the cooling mechanism (3). The other end of the second connecting pipe (4) is provided with a desulfurization and impurity removal mechanism (5), and a third connecting pipe (6) is installed on the top of one side of the desulfurization and impurity removal mechanism (5). The other end of the third connecting pipe (6) is provided with a primary compression mechanism (7), and a driving device (8) is provided on one side of the primary compression mechanism (7).

2. The liquid carbon dioxide recovery and treatment device according to claim 1, characterized in that, The bag filter dust collector (1) includes a support base (101), a housing (102) is fixedly connected to the top of the support base (101), a collection hopper (103) is fixedly connected to the bottom of the housing (102), a sealing top cover (104) is fixedly connected to the top of the housing (102), a bag filter assembly (105) is installed on the inner wall of the housing (102), a pulse backflushing assembly (106) is installed on one side of the top of the housing (102), a first air inlet (107) is fixedly connected to the top of the outer wall of one side of the housing (102), and a guide baffle (108) corresponding to the first air inlet (107) is fixedly connected to the inner wall of the housing (102).

3. The liquid carbon dioxide recovery and treatment device according to claim 2, characterized in that, The guide baffle (108) is disposed between the bag filter assembly (105) and the first air inlet (107), and the multiple bags in the bag filter assembly (105) and the multiple high-pressure jet ports in the pulse backflush assembly (106) correspond one-to-one.

4. The liquid carbon dioxide recovery and treatment device according to claim 1, characterized in that, The cooling mechanism (3) includes a double-ended connecting shell (301) disposed at one end of the first connecting pipe (2). A cooling sleeve (302) is disposed on the inner wall of the double-ended connecting shell (301). Both ends of the inner wall of the cooling sleeve (302) are fixedly connected to port sealing plates (303). Multiple cooling pipes (304) pass through between the two port sealing plates (303). Multiple flow guiding half-partitions (305) are fixedly connected between the multiple cooling pipes (304) and the inner wall of the cooling sleeve (302). Return pipes (306) are fixedly connected to both sides of the top of the cooling sleeve (302). A liquid adding pipe (307) is fixedly connected to the center of the top of the cooling sleeve (302). A drive pump (307) is installed on one of the return pipes (306). 8) The other end of each of the two return pipes (306) is fixedly connected to a liquid distribution box (309). Each of the two liquid distribution boxes (309) is fixedly connected to a set of transmission branch pipes (310). Each of the two sets of transmission branch pipes (310) is fixedly connected to two liquid distribution hollow plates (312). Each of the two sets of liquid distribution hollow plates (312) is fixedly connected to an integral connecting plate (311) on the side that is close to each other. Each of the two sets of liquid distribution hollow plates (312) is fixedly connected to an exhaust pipe (313) at the top. Multiple heat dissipation liquid distribution plates (314) are fixedly connected between the two sets of liquid distribution hollow plates (312). An installation housing (315) is fixedly connected between the two integral connecting plates (311). A fan assembly (316) is fixedly connected to one side of the inner wall of the installation housing (315).

5. The liquid carbon dioxide recovery and treatment device according to claim 4, characterized in that, The number of the multiple flow guide half-partitions (305) is three, the number of the two sets of liquid distribution hollow plates (312) is four, and the two sets of transmission branch pipes (310) are arranged in four rows, with each row corresponding to a liquid distribution hollow plate (312).

6. The liquid carbon dioxide recovery and treatment device according to claim 1, characterized in that, The desulfurization and impurity removal mechanism (5) includes a mechanism housing (501), on one side of the outer wall of the mechanism housing (501) are two arc-shaped sealing plates (502), the inner wall of the mechanism housing (501) is respectively provided with a first packing layer (503) and a second packing layer (504), two spraying components (505) are installed on the mechanism housing (501), and a liquid outlet (506) is fixedly connected to the bottom of the mechanism housing (501).

7. The liquid carbon dioxide recovery and treatment device according to claim 5, characterized in that, The two arc-shaped sealing plates (502) correspond one-to-one with the first packing layer (503) and the second packing layer (504).

8. The liquid carbon dioxide recovery and treatment device according to claim 1, characterized in that, The third connecting pipe (6) has a bifurcated double pipe structure at one end near the primary compression mechanism (7).

9. The liquid carbon dioxide recovery and treatment device according to claim 1, characterized in that, The primary compression mechanism (7) includes a compression housing assembly (701), a connecting shaft (702) is rotatably connected inside the compression housing assembly (701), and multiple impellers (703) are fixedly connected to the outer wall of the connecting shaft (702).

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