Adsorption device for preparing carbon dioxide

Abstract

The utility model discloses an adsorption device for preparing carbon dioxide, which comprises a tank body, the bottom of the tank body is communicated with a gas inlet pipe, one side of the top of the tank body is communicated with a waste gas discharge pipe, the other side of the top of the tank body is communicated with a carbon dioxide discharge pipe, and the bottom of the tank body is communicated with an impurity discharge pipe. The outer walls of the gas inlet pipe, the waste gas discharge pipe, the carbon dioxide discharge pipe and the impurity discharge pipe are respectively provided with an electromagnetic valve, the top of the tank body is provided with a blowing pipe, and the blowing pipe is communicated with the tank body through an electromagnetic pulse valve. The utility model relates to the technical field of carbon dioxide preparation, and solves the problems that in the prior art, in the carbon dioxide preparation process, a large amount of dust impurities exist in prepared gas and easily cover a carbon dioxide adsorbent, so that the adsorption efficiency of the carbon dioxide adsorbent is low, and the carbon dioxide adsorbent needs to be cleaned or replaced frequently; the preparation efficiency of the carbon dioxide is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide preparation, in particular to an adsorption device for preparing carbon dioxide. Background Art

[0002] Carbon dioxide is mainly used in food refrigeration, fire fighting, manufacturing carbonated beverages and industrial raw materials, etc. In industry, carbon dioxide is usually prepared by calcining limestone or high-temperature calcining calcium carbonate. However, a large amount of impurities are generated in the process of preparing carbon dioxide, and an adsorption device is required to separate and purify the prepared carbon dioxide. In the prior art, a large amount of dust impurities exist in the prepared gas during the preparation of carbon dioxide, which easily cover the carbon dioxide adsorbent, resulting in a low adsorption efficiency of the carbon dioxide adsorbent, which needs to be cleaned or replaced frequently, affecting the preparation efficiency of carbon dioxide. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides an adsorption device for preparing carbon dioxide, which solves the problem in the prior art that, during the preparation of carbon dioxide, a large amount of dust and impurities are present in the preparation gas, which easily cover the carbon dioxide adsorbent, resulting in low adsorption efficiency of the carbon dioxide adsorbent, requiring frequent cleaning or replacement, and affecting the preparation efficiency of carbon dioxide.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an adsorption device for preparing carbon dioxide, comprising a tank body, the bottom of the tank body is connected to an air inlet pipe, one side of the top of the tank body is connected to an exhaust gas exhaust pipe, the other side of the top of the tank body is connected to a carbon dioxide exhaust pipe, the bottom of the tank body is connected to an impurity exhaust pipe, the outer walls of the air inlet pipe, the exhaust gas exhaust pipe, the carbon dioxide exhaust pipe and the impurity exhaust pipe are respectively provided with electromagnetic valves, the top of the tank body is provided with a blow pipe, the blow pipe is connected to the tank body through an electromagnetic pulse valve, the inner wall of the tank body is located below the exhaust gas exhaust pipe and the carbon dioxide exhaust pipe and is fixedly connected to a first fixed plate, the inner wall of the first fixed plate is equidistantly fixedly connected to a tapered mouth, the bottom of the tapered mouth is fixedly connected to a bag holder, the outside of the bag holder is coated with a filter bag, the inside of the bag holder is filled with a carbon dioxide adsorbent, and a controller is provided on one side of the outside of the tank body, and the controller is electrically connected to the electromagnetic pulse valve and the electromagnetic valve, respectively.

[0005] Preferably, the bottom of the bag holder is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a first partition tube, the top of the bag holder is fixedly connected to a top plate, the top plate is fixedly connected to the tapered mouth, the bottom of the top plate is fixedly connected to a second partition tube, the first partition tube and the second partition tube are both inserted into the interior of the carbon dioxide adsorbent, an isolation net is provided on the top of the inner wall of the second partition tube, the isolation net is cooperatively connected to the carbon dioxide adsorbent, the inner wall of the tank body is fixedly connected to a heating component, and the heating component is electrically connected to the controller.

[0006] Preferably, the end of the air inlet pipe is connected with an elbow, and the end of the elbow away from the air inlet pipe is connected with a tapered pipe, and the tapered pipe is arranged correspondingly to the impurity exhaust pipe.

[0007] Preferably, a pressure sensor is provided on the top of the tank body, and the pressure sensor is electrically connected to the controller.

[0008] Preferably, a pressure sensor is provided on the top of the tank body, and the pressure sensor is electrically connected to the controller.

[0009] The utility model provides an adsorption device for preparing carbon dioxide. It has the following beneficial effects: the adsorption device for preparing carbon dioxide, through the coordination between the tank body, the impurity discharge pipe, the blowing pipe, the electromagnetic pulse valve, the first fixed plate, the bag support, the filter bag, the carbon dioxide adsorbent, the electromagnetic valve, the conical port and the controller, filters the mixed gas to prevent the impurities and dust in the mixed gas from directly contacting the carbon dioxide adsorbent, thereby avoiding clogging of the pores of the carbon dioxide adsorbent and ensuring the adsorption efficiency of the carbon dioxide adsorbent. At the same time, the spray cleaning method is adopted, which is more time-saving and labor-saving than the traditional cleaning method, and can more conveniently clean the filtered impurities and dust, thereby ensuring the efficient transmission of the mixed gas, which helps enterprises improve production efficiency.

[0010] Through the coordination among the bag support, the carbon dioxide adsorbent, the bottom plate, the first partition cylinder, the top plate and the second partition cylinder, and by arranging two cylinders for partition inside the bag support, a transmission channel is formed inside the carbon dioxide adsorbent, thereby increasing the transmission distance of the mixed gas in the carbon dioxide adsorbent and enabling the carbon dioxide adsorbents at different positions to fully exert their adsorption effect, thereby helping to improve the utilization rate of the carbon dioxide adsorbent, thereby increasing the adsorption amount of carbon dioxide by the adsorption device and further improving the preparation efficiency of the adsorption device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1A schematic diagram of the structure of the first fixing plate, the tapered opening and the second fixing plate;

[0013] Figure 3 for Figure 1 Schematic diagram of the structure of the middle bag support, the first partition cylinder and the carbon dioxide adsorbent;

[0014] Figure 4 for Figure 1 Schematic diagram of the structure of the second fixed plate, filter bag and tank body.

[0015] In the figure: 1. tank body, 2. air inlet pipe, 3. exhaust gas exhaust pipe, 4. carbon dioxide exhaust pipe, 5. exhaust pipe, 6. injection pipe, 7. electromagnetic pulse valve, 8. first fixed plate, 9. bag bracket, 10. filter bag, 11. carbon dioxide adsorbent, 12. electromagnetic valve, 13. conical mouth, 14. bottom plate, 15. first partition tube, 16. top plate, 17. second partition tube, 18. isolation net, 19. heating component, 20. elbow, 21. conical tube, 22. pressure sensor, 23. second fixed plate, 24. vent, 25. controller. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the prior art, during the process of preparing carbon dioxide, a large amount of dust impurities exist in the prepared gas, which easily cover the carbon dioxide adsorbent, resulting in a low adsorption efficiency of the carbon dioxide adsorbent, which needs to be cleaned or replaced frequently, affecting the preparation efficiency of carbon dioxide.

[0018] In view of this, the utility model provides an adsorption device for preparing carbon dioxide, which filters the mixed gas through the coordination of a tank body, a discharge pipe, a blowing pipe, an electromagnetic pulse valve, a first fixed plate, a bag bracket, a filter bag, a carbon dioxide adsorbent, a solenoid valve, a conical mouth and a controller to prevent impurities and dust in the mixed gas from directly contacting the carbon dioxide adsorbent, thereby avoiding clogging of the pores of the carbon dioxide adsorbent and ensuring the adsorption efficiency of the carbon dioxide adsorbent. At the same time, the spray cleaning method is adopted to more conveniently clean the filtered impurities and dust, thereby ensuring the efficient transmission of the mixed gas and improving the preparation efficiency of carbon dioxide.

[0019] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0020] Depend on Figure 1-4 It can be seen that an adsorption device for preparing carbon dioxide includes a tank body 1, the bottom of the tank body 1 is connected to an air inlet pipe 2, the air inlet pipe 2 is connected to a high-pressure transmission device for high-pressure input of a mixed gas, one side of the top of the tank body 1 is connected to an exhaust gas exhaust pipe 3, the exhaust gas exhaust pipe 3 is used to discharge the gas after the carbon dioxide adsorption is completed, the other side of the top of the tank body 1 is connected to a carbon dioxide exhaust pipe 4, the carbon dioxide exhaust pipe 4 is connected to a negative pressure transmission device for negative pressure transmission of the adsorbed carbon dioxide, the bottom of the tank body 1 is connected to an impurity discharge pipe 5, the impurity discharge pipe 5 is used to discharge filtered impurities and dust, the outer walls of the air inlet pipe 2, the exhaust gas exhaust pipe 3, the carbon dioxide exhaust pipe 4 and the impurity discharge pipe 5 are respectively provided with solenoid valves 12, the solenoid valves 12 are used to open and close each pipeline, so that each process of preparing carbon dioxide is orderly controlled, and the top of the tank body 1 is provided with a blowing pipe 6, the blowing pipe 6 is used to blow dust from the adsorption device Impurities and filter bags are separated by blowing, and the blowing pipe 6 is connected to the tank body 1 through the electromagnetic pulse valve 7. The inner wall of the tank body 1 is located below the exhaust gas exhaust pipe 3 and the carbon dioxide exhaust pipe 4 and is fixedly connected with a first fixed plate 8. The inner wall of the first fixed plate 8 is equidistantly fixedly connected with a conical mouth 13, and the bottom of the conical mouth 13 is fixedly connected with a bag holder 9. The outside of the bag holder 9 is coated with a filter bag 10, and the inside of the bag holder 9 is filled with a carbon dioxide adsorbent 11. The main components of the carbon dioxide adsorbent 11 are molecular sieves, activated alumina, activated clay, etc., which are bonded, formed, and dried by special processes. The inside contains an adsorbent with rich pore structure, which has high selectivity and high adsorption capacity for carbon dioxide. A controller 25 is arranged on the outer side of the tank body 1. The controller 25 is used to control the electrical components of the adsorption device. The controller 25 is electrically connected to the electromagnetic pulse valve 7 and the electromagnetic valve 12 respectively;

[0021] In the specific implementation process, it is worth pointing out that the main structure of the carbon dioxide adsorption device is formed by the cooperation between the tank body 1, the air intake pipe 2, the exhaust gas discharge pipe 3, the carbon dioxide discharge pipe 4, the exhaust pipe 5 and the blowing pipe 6, wherein the air intake pipe 2 is connected with a high-pressure transmission device for high-pressure input of the mixed gas, the exhaust gas discharge pipe 3 is used to discharge the gas after the carbon dioxide adsorption is completed, the carbon dioxide discharge pipe 4 is connected with a negative pressure transmission device for negative pressure transmission of the adsorbed carbon dioxide, the exhaust pipe 5 is connected with a dust collecting device for discharging filtered impurities and dust, and the blowing pipe 6 is used to spray and separate the dust impurities and filter bags of the adsorption device, through the tank body 1, the first fixed plate 8, the bag bracket 9, the filter bag 10 and the conical mouth 1 3 cooperates to filter the input mixed gas, so that the impurities and dust in the mixed gas are adsorbed on the outside of the filter bag 10, preventing the impurities and dust from directly contacting the carbon dioxide adsorbent 11, and avoiding clogging the pores of the carbon dioxide adsorbent 11. The main components of the carbon dioxide adsorbent 11 are molecular sieves, activated alumina, activated clay, etc., which are bonded, formed, and dried by special processes. The adsorbent contains a rich pore structure inside, which has high selectivity and high adsorption capacity for carbon dioxide. The solenoid valve 12 is used to open and close each pipeline, so that each process of preparing carbon dioxide is controlled in an orderly manner. Through the tank body 1, the air inlet pipe 2, the exhaust gas exhaust pipe 3, the carbon dioxide exhaust pipe 4, the first fixed plate 8, the bag bracket 9, The filter bag 10, the carbon dioxide adsorbent 11, the solenoid valve 12 and the tapered port 13 cooperate to input the mixed gas into the adsorption device at high pressure through the air inlet pipe 2, and the mixed gas is transmitted from the air inlet pipe 2 to the exhaust gas discharge pipe 3. The impurities and dust mixed in the mixed gas are filtered out by the filter bag 10, and the carbon dioxide in the mixed gas is adsorbed by the carbon dioxide adsorbent 11. Other gases are discharged into the top chamber of the tank body 1 through the tapered port 13 and discharged through the exhaust gas discharge pipe 3. After a certain period of gas transmission, the solenoid valves 12 of the air inlet pipe 2 and the exhaust gas discharge pipe 3 are closed, and the solenoid valve 12 of the carbon dioxide discharge pipe 4 is opened, and a negative pressure device is used to form a negative pressure in the carbon dioxide discharge pipe 4 and the inside of the tank body 1, so that the carbon dioxide is discharged from the carbon dioxide discharge pipe 4 to the exhaust gas discharge pipe 3. The carbon dioxide adsorbent 11 is extracted from the pores to prepare carbon dioxide. Through the cooperation among the tank body 1, the impurity discharge pipe 5, the blowing pipe 6, the electromagnetic pulse valve 7 and the electromagnetic valve 12, the electromagnetic pulse valve 7 is controlled to make the blowing pipe 6 input high-pressure gas into the tank body 1 at a certain frequency, the impurities and dust filtered out by the filter bag 10 are separated, and the impurities and dust are discharged from the tank body 1 through the impurity discharge pipe 5, so as to clean the impurities and dust. The controller 25 is used to control the electrical components of the adsorption device. Through the cooperation among the tank body 1, the impurity discharge pipe 5, the blowing pipe 6, the electromagnetic pulse valve 7, the first fixed plate 8, the bag bracket 9, the filter bag 10, the carbon dioxide adsorbent 11, the electromagnetic valve 12, the tapered port 13 and the controller 25, the mixed gas is filtered.Prevent impurities and dust in the mixed gas from directly contacting the carbon dioxide adsorbent, avoid clogging the pores of the carbon dioxide adsorbent, ensure the adsorption efficiency of the carbon dioxide adsorbent, and adopt the spray cleaning method to more conveniently clean the filtered impurities and dust, ensure the efficient transmission of the mixed gas, and improve the preparation efficiency of carbon dioxide. The specific models of the electromagnetic pulse valve 7, the electromagnetic valve 12 and the controller 25 are not limited, and they can meet the use requirements;

[0022] Further, the bottom of the bag support 9 is fixedly connected to a bottom plate 14, the top of the bottom plate 14 is fixedly connected to a first partition tube 15, the top of the bag support 9 is fixedly connected to a top plate 16, the top plate 16 is fixedly connected to the tapered mouth 13, the bottom of the top plate 16 is fixedly connected to a second partition tube 17, the first partition tube 15 and the second partition tube 17 are both plugged into the interior of the carbon dioxide adsorbent 11, the top of the inner wall of the second partition tube 17 is provided with an isolation net 18, the isolation net 18 is cooperatively connected to the carbon dioxide adsorbent 11, the inner wall of the tank body 1 is fixedly connected to a heating component 19, and the heating component 19 is electrically connected to the controller 25;

[0023] In the specific implementation process, it is worth pointing out that, through the cooperation between the bag support 9, the carbon dioxide adsorbent 11, the bottom plate 14, the first partition cylinder 15, the top plate 16 and the second partition cylinder 17, two cylinders for separation are arranged inside the bag support 9, so that a transmission channel is formed inside the carbon dioxide adsorbent 11, the transmission distance of the mixed gas in the carbon dioxide adsorbent 11 is increased, the carbon dioxide adsorbent 11 can give full play to the adsorption effect, the utilization rate of the carbon dioxide adsorbent 11 is improved, and the adsorption amount of carbon dioxide by the adsorption device is increased. The isolation net 18 is used to limit the carbon dioxide adsorbent 11 in the bag support 9, and the heating component 19 is used to heat the tank body 1. When the carbon dioxide adsorbed in the carbon dioxide adsorbent 11 is separated, the separation efficiency of carbon dioxide is improved by increasing the temperature in the tank body 1;

[0024] Furthermore, the end of the air inlet pipe 2 is connected with an elbow 20, and the end of the elbow 20 away from the air inlet pipe 2 is connected with a tapered pipe 21, and the tapered pipe 21 is arranged corresponding to the impurity discharge pipe 5;

[0025] In the specific implementation process, it is worth pointing out that, through the cooperation between the air intake pipe 2, the elbow 20 and the tapered pipe 21, by setting the downward tapered pipe 21 at the end of the air intake pipe 2, the larger impurity particles in the mixed gas are discharged from the tapered pipe 21 and settle at the bottom of the tank body 1, thereby reducing the impurities and dust in contact with the filter bag 10;

[0026] Furthermore, a pressure sensor 22 is provided on the top of the tank body 1, and the pressure sensor 22 is electrically connected to the controller 25;

[0027] In the specific implementation process, it is worth pointing out that the pressure sensor 22 is used to detect the gas pressure in the tank 1, so as to adjust and control the gas transmission pressure of the adsorption device;

[0028] Furthermore, a second fixing plate 23 is fixedly connected to the inner wall of the tank body 1, the second fixing plate 23 is cooperatively connected to the bottom plate 14, and vents 24 are equidistantly provided on the outer wall of the second fixing plate 23;

[0029] In the specific implementation process, it is worth pointing out that the second fixing plate 23 is used to support and limit the bottom of the filter and adsorption assembly to improve the stability of the filter and adsorption assembly, and the vent 24 is used for the circulation of the mixed gas at the second fixing plate 23;

[0030] Specifically, when the adsorption device for preparing carbon dioxide is used, the solenoid valve 12 of the air intake pipe 2 and the exhaust gas discharge pipe 3 is controlled by the controller 25, so that the air intake pipe 2 and the exhaust gas discharge pipe 3 are connected to the tank body 1, and the mixed gas is transmitted to the tank body 1 at high pressure by using the high-pressure transmission device. The mixed gas enters the tank body 1 from the bottom of the conical tube 21, and the larger impurities and particles mixed in the mixed gas settle at the bottom of the tank body 1, and the smaller impurities and dust are transmitted upward with the mixed gas. The filter bag 10 filters the impurities and dust in the mixed gas, so that the impurities and dust are adsorbed on the outside of the filter bag 10, and the filtered mixed gas is transmitted in the transmission channel in the carbon dioxide adsorbent 11, and enters the tank through the conical port 13. In the chamber at the top of the tank 1, during the transmission of the mixed gas in the carbon dioxide adsorbent 11, the pores of the carbon dioxide adsorbent 11 adsorb the carbon dioxide in the mixed gas, and the mixed gas that has completed the carbon dioxide adsorption is discharged from the tank 1 through the exhaust gas discharge pipe 3. After a certain time, the controller 25 automatically closes the solenoid valve 12 of the air inlet pipe 2 and the exhaust gas discharge pipe 3, stops the input of the mixed gas and the discharge of the exhaust gas, and completes the adsorption of the prepared carbon dioxide. The heating component 19 is turned on by the controller 25 to heat the inside of the tank 1. After reaching a certain temperature, the controller 25 automatically controls the carbon dioxide discharge pipe 4, and uses the transmission device to discharge the gas in the tank 1, so that a negative pressure is formed inside the tank 1. Due to the temperature inside the tank 1 The carbon dioxide is separated from the pores of the carbon dioxide adsorbent 11 under the negative pressure and discharged from the tank body 1 through the transmission device, completing the separation of the prepared carbon dioxide. After closing the carbon dioxide discharge pipe 4, repeat the above steps to adsorb carbon dioxide again. When the surface of the filter bag 10 adsorbs more impurities and dust, the transmission efficiency of the mixed gas is affected. The air inlet pipe 2, the exhaust gas discharge pipe 3 and the carbon dioxide discharge pipe 4 are closed by the controller 25, and the solenoid valve 12 of the impurity discharge pipe 5 is opened. The controller 25 automatically controls the electromagnetic pulse valve 7 to input the high-pressure gas from the injection pipe 6 into the tank body 1. The high-pressure gas enters the through-hole through the conical mouth 13. The impurities and dust adsorbed on the surface of the filter bag 10 are separated under the action of pulse blowing. The larger impurities and particles deposited at the bottom of the tank body 1, as well as the separated impurities and dust enter the exhaust pipe 5 under the action of the airflow, and are collected and processed by the dust collecting device. After the impurities and dust are cleaned, the exhaust pipe 5 and the electromagnetic pulse valve 7 are closed, and the carbon dioxide preparation and adsorption can be resumed. Through the coordination among the tank body 1, the exhaust pipe 5, the blowing pipe 6, the electromagnetic pulse valve 7, the first fixed plate 8, the bag support 9, the filter bag 10, the carbon dioxide adsorbent 11, the electromagnetic valve 12, the tapered port 13 and the controller 25, the mixed gas is filtered.Prevent impurities and dust in the mixed gas from directly contacting the carbon dioxide adsorbent, avoid clogging the pores of the carbon dioxide adsorbent, and ensure the adsorption efficiency of the carbon dioxide adsorbent. At the same time, the spray cleaning method can more conveniently clean the filtered impurities and dust, ensure the efficient transmission of the mixed gas, and improve the preparation efficiency of carbon dioxide.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0032] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adsorption device for preparing carbon dioxide, comprising a tank (1), characterized in that: The bottom of the tank body (1) is connected to an air intake pipe (2), one side of the top of the tank body (1) is connected to an exhaust gas discharge pipe (3), the other side of the top of the tank body (1) is connected to a carbon dioxide discharge pipe (4), the bottom of the tank body (1) is connected to an impurity discharge pipe (5), the outer walls of the air intake pipe (2), the exhaust gas discharge pipe (3), the carbon dioxide discharge pipe (4) and the impurity discharge pipe (5) are respectively provided with electromagnetic valves (12), the top of the tank body (1) is provided with a blowing pipe (6), the blowing pipe (6) is connected to the tank body (1) through an electromagnetic pulse valve (7), and the tank body (1) is provided with a blow pipe (6). A first fixing plate (8) is fixedly connected to the inner wall below the exhaust gas exhaust pipe (3) and the carbon dioxide exhaust pipe (4); a conical opening (13) is fixedly connected to the inner wall of the first fixing plate (8) at equal intervals; a bag holder (9) is fixedly connected to the bottom of the conical opening (13); the outside of the bag holder (9) is coated with a filter bag (10); the inside of the bag holder (9) is filled with a carbon dioxide adsorbent (11); a controller (25) is provided on one side of the outside of the tank body (1); the controller (25) is electrically connected to the electromagnetic pulse valve (7) and the electromagnetic valve (12), respectively.

2. The adsorption device for preparing carbon dioxide according to claim 1, characterized in that: The bottom of the bag support (9) is fixedly connected to a bottom plate (14), the top of the bottom plate (14) is fixedly connected to a first partition tube (15), the top of the bag support (9) is fixedly connected to a top plate (16), the top plate (16) is fixedly connected to the conical mouth (13), the bottom of the top plate (16) is fixedly connected to a second partition tube (17), the first partition tube (15) and the second partition tube (17) are both plugged into the interior of the carbon dioxide adsorbent (11), the top of the inner wall of the second partition tube (17) is provided with an isolation net (18), the isolation net (18) is cooperatively connected to the carbon dioxide adsorbent (11), the inner wall of the tank body (1) is fixedly connected to a heating component (19), and the heating component (19) is electrically connected to a controller (25).

3. The adsorption device for preparing carbon dioxide according to claim 1, characterized in that: The end of the air intake pipe (2) is connected to an elbow (20), and the end of the elbow (20) away from the air intake pipe (2) is connected to a tapered pipe (21), and the tapered pipe (21) is arranged corresponding to the impurity discharge pipe (5).

4. The adsorption device for preparing carbon dioxide according to claim 1, characterized in that: A pressure sensor (22) is provided on the top of the tank body (1), and the pressure sensor (22) is electrically connected to a controller (25).

5. The adsorption device for preparing carbon dioxide according to claim 2, characterized in that: A second fixing plate (23) is fixedly connected to the inner wall of the tank body (1), the second fixing plate (23) is cooperatively connected to the bottom plate (14), and vents (24) are equidistantly provided on the outer wall of the second fixing plate (23).

Images