Greenhouse gas adsorption treatment device and method and compound fertilizer processing technology

Abstract

The invention relates to the technical field of greenhouse gas emission reduction, and discloses a greenhouse gas adsorption treatment device and method and a compound fertilizer processing technology. After the adsorption box adsorbs for a certain period of time, part of the adsorption box can be closed, the closed part of the adsorption box is communicated with the desorption collection pipeline, and greenhouse gas adsorbed by a solid adsorbent in each adsorption treatment cage can be released under the action of the desorption heater; the released greenhouse gas can be input into the catalytic treatment mechanism through the desorption collection pipeline, is treated in the catalytic treatment mechanism and then is discharged through the discharging mechanism, so that the adsorption capacity of the adsorption boxes is updated, and the adsorption boxes are in adsorption and updating states respectively; the waste gas containing the greenhouse gas can be continuously adsorbed, so that the treatment continuity of the greenhouse gas can be ensured, and the emission of the greenhouse gas can be fully avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of greenhouse gas emission reduction, and in particular to a greenhouse gas adsorption treatment device, method and compound fertilizer processing technology. Background Art

[0002] Controlling greenhouse gas emissions (such as carbon dioxide and methane) is a core issue in the global response to climate change. Adsorption technology, due to its high efficiency and flexibility, has become a key tool in industrial exhaust gas treatment and carbon capture. Traditional adsorption devices are typically based on physical or chemical adsorption principles, using porous media such as activated carbon, zeolites, and metal-organic frameworks (MOFs) to achieve gas separation via fixed or fluidized bed reactors.

[0003] In the production of compound fertilizers, the emission control and resource utilization of greenhouse gases (such as nitrogen oxides in the synthetic ammonia process) are important directions for the industry's green transformation. In traditional processes, waste gas treatment and fertilizer production are usually independent links, and the adsorption device only performs the end-of-pipe treatment function. The adsorbed gas is either directly discharged or converted into low-value-added products (such as carbonates) through simple chemical conversion. Existing adsorption devices are mostly intermittent or semi-continuous operations, with long adsorbent regeneration cycles and complex equipment switching. The lack of a dynamic update mechanism limits the long-term use and operating efficiency of greenhouse gas adsorption devices. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a greenhouse gas adsorption treatment device, method and compound fertilizer processing technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A greenhouse gas adsorption treatment device includes an air intake treatment mechanism, a branch air intake pipe, several adsorption boxes, a converging exhaust pipe and an emission mechanism, and also includes a desorption collection pipe and a catalytic treatment mechanism; several adsorption treatment cages are arranged in sequence from top to bottom inside each of the adsorption boxes, and a desorption heater is arranged inside each of the adsorption boxes. The top and bottom ends of each of the adsorption boxes are respectively provided with an adsorption air inlet and an adsorption exhaust port, and the top and bottom ends of each of the adsorption boxes are also respectively provided with a desorption exhaust port; one end of the branch air intake pipe is connected to the air intake treatment mechanism, and each of the adsorption boxes is connected to the branch air intake pipe through the adsorption air inlet, one end of the converging exhaust pipe is connected to the emission mechanism, and each of the adsorption boxes is connected to the emission mechanism through the adsorption exhaust port; both ends of the catalytic treatment mechanism are respectively connected to the desorption collection pipe and the emission mechanism, and each of the desorption exhaust ports is connected to the desorption collection pipe.

[0007] Preferably, each of the adsorption treatment cages inside the adsorption box is filled with solid adsorbent, and the desorption heater includes a main mixing impeller and several auxiliary mixing impellers, and the mixing impeller and each of the auxiliary mixing impellers can pass through each of the adsorption treatment cages in sequence; the main mixing impeller and each of the auxiliary mixing impellers are located inside each of the adsorption treatment cages and are provided with stirring blades, and each of the stirring blades is provided with a heating wire, and the main mixing impeller and each of the auxiliary mixing impellers have opposite rotation directions.

[0008] Preferably, a mixing drive unit is also provided inside the adsorption box, and the mixing drive unit includes a central driving gear, a plurality of external driving gears and a mixing drive motor. Both ends of the central driving gear are coaxially fixed with the mixing drive motor and the main mixing impeller, and each of the external driving gears is coaxially fixed with each of the auxiliary mixing impellers, and each of the external driving gears is gear-meshed with the central driving gear.

[0009] Preferably, the desorption collection pipe includes an upper collection pipe and a lower collection pipe, and the upper collection pipe and the lower collection pipe are respectively connected to the catalytic treatment mechanism through two negative pressure desorption fans; the upper collection pipe is respectively connected to the desorption exhaust port at the top of each adsorption box, and the lower collection pipe is respectively connected to the desorption exhaust port at the bottom of each adsorption box; the two negative pressure desorption fans can provide negative pressure to each adsorption box through the upper collection pipe and the lower collection pipe, respectively, to provide power for the greenhouse gas to be desorbed from the inside of the adsorption box and transported to the catalytic treatment mechanism.

[0010] Preferably, the desorption collection pipeline also includes an emergency discharge pipeline, one end of which is connected to the discharge mechanism, and the emergency discharge pipeline is connected to the upper collection pipeline and the lower collection pipeline through emergency valves respectively; the upper collection pipeline and the lower collection pipeline are connected to each of the desorption exhaust ports through each collection valve respectively.

[0011] Preferably, each of the adsorption air inlets is connected to the branch air inlet pipe through an air inlet valve, and each of the adsorption air exhaust ports is connected to the converging air exhaust pipe through an air exhaust valve; the air inlet valve and the air exhaust valve located on both sides of the same adsorption box are opened and closed at the same time, and at most only one of the two collection valves located on both sides of the same adsorption box and the air inlet valve and the air exhaust valve located on both sides of the same adsorption box is open.

[0012] Preferably, the catalytic treatment mechanism includes a catalytic chamber and a combustion chamber, and a return pipe and a combustion exhaust fan are provided at one end of the combustion chamber away from the catalytic chamber; the upper collecting pipe and the lower collecting pipe are both connected to the catalytic chamber, and the catalytic chamber and the combustion chamber are connected through a transfer pipe and the return pipe.

[0013] Preferably, the emission mechanism includes a forced emission fan, an emission collecting pipe and an emission chimney, the convergent exhaust duct is connected to the emission chimney through the forced emission fan, one end of the emission collecting pipe is connected to the emission chimney, and the other end of the emission collecting pipe is respectively connected to the emergency emission pipe and the combustion emission fan; the air intake treatment mechanism includes an air intake conversion pipe and a bag dust collector, the two ends of the bag dust collector are respectively connected to the air intake conversion pipe and the branch air intake duct, and the gas input from the air intake conversion pipe can be captured and dusted by the bag dust collector and then input into the branch air intake duct.

[0014] The greenhouse gas adsorption treatment method uses the above-mentioned greenhouse gas adsorption treatment device and includes the following steps:

[0015] The waste gas containing greenhouse gases is input from the air intake treatment mechanism, and the waste gas containing greenhouse gases after being captured and dusted by the air intake treatment mechanism is respectively input into each open adsorption box through the branch air intake pipe;

[0016] After being adsorbed by each adsorption box, the waste gas containing greenhouse gases is discharged from the emission mechanism through the converging exhaust pipe;

[0017] The branch air inlet duct and the converging exhaust duct are closed, and the adsorbed greenhouse gases are released through the action of the desorption heater. The released greenhouse gases are input to the catalytic treatment mechanism through the desorption collection pipe, and are discharged through the emission mechanism after being processed inside the catalytic treatment mechanism.

[0018] The compound fertilizer processing process uses the above-mentioned greenhouse gas adsorption treatment method to adsorb and treat the greenhouse gases generated during the compound fertilizer processing, and includes the following steps:

[0019] Connecting the air intake treatment mechanisms to locations where greenhouse gases are generated during the compound fertilizer processing process, respectively, so as to input waste gas containing greenhouse gases from the air intake treatment mechanisms;

[0020] After being adsorbed by each adsorption box, the waste gas containing greenhouse gases is discharged from the emission mechanism through the converging exhaust pipe;

[0021] After the greenhouse gases adsorbed by the adsorption box are desorbed, they are input into the catalytic treatment mechanism through the desorption collection pipeline, and are processed inside the catalytic treatment mechanism before being discharged through the emission mechanism.

[0022] Compared with the prior art, the present invention provides a greenhouse gas adsorption treatment device, method and compound fertilizer processing technology, which have the following beneficial effects:

[0023] 1. This greenhouse gas adsorption treatment device can independently close and open each adsorption box, and the exhaust gas after adsorption treatment is discharged from the emission mechanism through the converging exhaust pipe; after the adsorption box adsorbs for a certain period of time, the closed part of the adsorption box can be connected with the desorption collection pipe, and the greenhouse gas adsorbed by the solid adsorbent inside each adsorption treatment cage can be released through the action of the desorption heater, and the released greenhouse gas can be input into the catalytic treatment mechanism through the desorption collection pipe, and then discharged through the emission mechanism after being treated inside the catalytic treatment mechanism, so as to update the adsorption capacity of the adsorption box, so that each adsorption box can be in the adsorption and update state respectively, and the exhaust gas containing greenhouse gas can be continuously adsorbed and treated, which can ensure the continuity of greenhouse gas treatment and fully avoid greenhouse gas emissions.

[0024] 2. In this greenhouse gas adsorption treatment device, the rotation direction of each auxiliary mixing impeller is opposite to that of the main mixing impeller under the drive of each external driving gear, thereby providing a mixed dispersion degree of the solid adsorbent inside the adsorption treatment cage, and the solid adsorbent on the path of the exhaust gas passing through the adsorption treatment cage can be dynamically moved to ensure the uniformity of adsorption of the solid adsorbent inside the adsorption treatment cage, and under the combined action of the negative pressure inside the desorption collection pipe and the heating of the heating wire inside each stirring blade, the solid adsorbent is driven to desorb greenhouse gases, thereby being able to mix and disperse the solid adsorbent inside the adsorption treatment cage through the main mixing impeller and each auxiliary mixing impeller, ensuring that the solid adsorbent can evenly release greenhouse gases, ensuring the effectiveness of solid adsorbent renewal, and fully ensuring the effect of solid adsorbent adsorption and desorption of greenhouse gases.

[0025] 3. This compound fertilizer processing technology removes dust from the exhaust gas through the air intake treatment mechanism, and then passes through the adsorption treatment of each adsorption box, and is discharged from the emission mechanism through the converging exhaust duct. The exhaust gas can be in the adsorption and renewal states respectively through each adsorption box, and the greenhouse gas released from the adsorption box in the renewal state is input to the catalytic treatment mechanism through the desorption collection pipe. After being processed inside the catalytic treatment mechanism, it is discharged through the emission mechanism to update the adsorption capacity of the adsorption box, so as to be able to fully and continuously treat the exhaust gas containing greenhouse gases generated in the compound fertilizer processing technology, avoid excessive gas emission pressure generated at the front end of the compound fertilizer processing technology, and avoid the problem of suspension of compound fertilizer processing due to accumulation of exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is one of the three-dimensional structural schematic diagrams of the greenhouse gas adsorption treatment device of the present invention;

[0027] Figure 2 This is the second schematic diagram of the three-dimensional structure of the greenhouse gas adsorption treatment device of the present invention;

[0028] Figure 3 This is the third schematic diagram of the three-dimensional structure of the greenhouse gas adsorption treatment device of the present invention;

[0029] Figure 4 This is the fourth schematic diagram of the three-dimensional structure of the greenhouse gas adsorption treatment device of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the branch air inlet pipe, the adsorption box and the converging exhaust pipe of the greenhouse gas adsorption treatment device of the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of the adsorption box of the greenhouse gas adsorption treatment device of the present invention;

[0032] Figure 7 This is one of the three-dimensional structural schematic diagrams of the emission mechanism, desorption collection pipeline and catalytic treatment mechanism of the greenhouse gas adsorption treatment device of the present invention;

[0033] Figure 8 This is the second schematic diagram of the three-dimensional structure of the emission mechanism, desorption collection pipeline and catalytic treatment mechanism of the greenhouse gas adsorption treatment device of the present invention.

[0034] In the figure: 1. Intake air treatment mechanism; 11. Intake air conversion pipe; 12. Bag filter; 2. Diverter intake duct; 3. Adsorption box; 31. Adsorption treatment cage; 32. Desorption heater; 321. Main mixing impeller; 322. Auxiliary mixing impeller; 33. Adsorption air inlet; 331. Intake valve; 34. Adsorption exhaust port; 341. Exhaust valve; 35. Desorption exhaust port; 36. Hybrid drive unit; 361. Central drive gear; 362. External drive gear; 363. Hybrid drive motor; 4. Converging exhaust duct; 5. Discharge mechanism; 51. Forced exhaust fan; 52. Discharge collection pipe; 53. Discharge chimney; 6. Desorption and collection pipe; 61. Upper collection pipe; 62. Lower collection pipe; 63. Negative pressure desorption fan; 64. Emergency discharge pipe; 65. Emergency valve; 66. Collection valve; 7. Catalytic treatment mechanism; 71. Catalytic chamber; 72. Combustion chamber; 73. Return pipe; 74. Combustion exhaust fan; 75. Transfer pipe. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] As introduced in the background technology, in order to solve the deficiencies in the existing technology and the above technical problems, this application proposes a greenhouse gas adsorption treatment device, method and compound fertilizer processing technology.

[0037] Example 1:

[0038] See also Figures 1-8 , a greenhouse gas adsorption treatment device includes an air intake treatment mechanism 1, a branch air intake pipe 2, several adsorption boxes 3, a converging exhaust pipe 4 and an emission mechanism 5, and also includes a desorption collection pipe 6 and a catalytic treatment mechanism 7; several adsorption treatment cages 31 are arranged in sequence from top to bottom inside each adsorption box 3, and a desorption heater 32 is arranged inside each adsorption box 3. The top and bottom ends of each adsorption box 3 are respectively provided with an adsorption air inlet 33 and an adsorption exhaust port 34, and the top and bottom ends of each adsorption box 3 are also respectively provided with a desorption exhaust port 35; one end of the branch air intake pipe 2 is connected to the air intake treatment mechanism 1, and each adsorption box 3 is connected to the branch air intake pipe 2 through the adsorption air inlet 33, one end of the converging exhaust pipe 4 is connected to the emission mechanism 5, and each adsorption box 3 is connected to the emission mechanism 5 through the adsorption exhaust port 34; the two ends of the catalytic treatment mechanism 7 are respectively connected to the desorption collection pipe 6 and the emission mechanism 5, and each desorption exhaust port 35 is connected to the desorption collection pipe 6.

[0039] During use, waste gas containing greenhouse gases is input from the air intake treatment mechanism 1. During the process of the waste gas passing through the air intake treatment mechanism 1, the dust (large dust impurities such as dust and metal particles) carried in the waste gas is captured by the air intake treatment mechanism 1, so that only gas can be input into each open adsorption box 3 from the branch air intake pipe 2, so that the greenhouse gases in the waste gas can be adsorbed by each adsorption box 3. In actual use, the solid adsorbent inside each adsorption treatment cage 31 inside the adsorption box 3 can be configured according to the actual greenhouse gas composition (methane, chlorofluorocarbons CFCs, nitrous oxide N2O and other greenhouse gases) (such as activated carbon and MOF materials for methane, activated carbon fibers and 5A molecular sieves for chlorofluorocarbons CFCs, zeolite and activated carbon for nitrous oxide N2O), so as to adsorb the greenhouse gases in actual use, and each adsorption box 3 can be independently closed and opened during actual use. , so that it is easy to replace the adsorbent inside the closed adsorption box 3, and the exhaust gas after adsorption treatment is discharged from the emission mechanism 5 through the converging exhaust pipe 4; after the adsorption box 3 adsorbs for a certain period of time, the closed part of the adsorption box 3 can be connected with the desorption collection pipe 6 through the closed part of the adsorption box 3 (in actual use, by opening and closing the collection valve 66), and the greenhouse gas adsorbed by the solid adsorbent inside each adsorption treatment cage 31 can be released through the action of the desorption heater 32, and the released greenhouse gas can be input to the catalytic treatment mechanism 7 through the desorption collection pipe 6, and then discharged through the emission mechanism 5 after being treated inside the catalytic treatment mechanism 7, so as to update the adsorption capacity of the adsorption box 3, so that each adsorption box 3 can be in the adsorption and update state respectively, and the exhaust gas containing greenhouse gas can be continuously adsorbed and treated, which can ensure the continuity of the treatment of greenhouse gas and fully avoid the emission of greenhouse gas.

[0040] Example 2:

[0041] See also Figures 1-8 The difference from the above embodiment is that each adsorption treatment cage 31 inside each adsorption box 3 is filled with solid adsorbent, and the desorption heater 32 includes a main mixing impeller 321 and a plurality of auxiliary mixing impellers 322. The mixing impeller 321 and each auxiliary mixing impeller 322 can pass through each adsorption treatment cage 31 in sequence; the main mixing impeller 321 and each auxiliary mixing impeller 322 are located inside each adsorption treatment cage 31 and are provided with stirring blades, and each stirring blade is provided with a heating wire. The main mixing impeller 321 and each auxiliary mixing impeller 322 have opposite rotation directions.

[0042] A mixing drive unit 36 is also provided inside the adsorption box 3. The mixing drive unit 36 includes a central driving gear 361, several external driving gears 362 and a mixing drive motor 363. The two ends of the central driving gear 361 are coaxially fixed with the mixing drive motor 363 and the main mixing impeller 321, and each external driving gear 362 is coaxially fixed with each auxiliary mixing impeller 322. Each external driving gear 362 is gear-meshed with the central driving gear 361.

[0043] In actual use, the central drive gear 361 can drive the main mixing impeller 321 to rotate by outputting power through the mixing drive motor 363. Since each external drive gear 362 is engaged with the central drive gear 361, the rotation direction of each auxiliary mixing impeller 322 is opposite to the rotation direction of the main mixing impeller 321 under the drive of each external drive gear 362, thereby increasing the mixing and dispersion degree of the solid adsorbent inside the adsorption treatment cage 31, and the solid adsorbent on the path of the exhaust gas passing through the adsorption treatment cage 31 can be dynamically moved. The solid adsorbent inside the adsorption treatment cage 31 is ensured to have uniform adsorption, and under the combined action of the negative pressure inside the desorption collection pipe 6 and the heating of the heating wire inside each stirring blade, the solid adsorbent is driven to desorb greenhouse gases, so that the main mixing impeller 321 and each auxiliary mixing impeller 322 can mix and disperse the solid adsorbent inside the adsorption treatment cage 31, ensuring that the solid adsorbent can release greenhouse gases uniformly, ensuring the effectiveness of the solid adsorbent renewal, and fully ensuring the effect of the solid adsorbent in adsorbing and desorbing greenhouse gases.

[0044] Example 3:

[0045] See also Figures 1-8 , the difference from the above embodiment is that the desorption collection pipe 6 includes an upper collection pipe 61 and a lower collection pipe 62, and the upper collection pipe 61 and the lower collection pipe 62 are respectively connected to the catalytic treatment mechanism 7 through two negative pressure desorption fans 63; the upper collection pipe 61 is respectively connected to the desorption exhaust port 35 at the top of each adsorption box 3, and the lower collection pipe 62 is respectively connected to the desorption exhaust port 35 at the bottom of each adsorption box 3; the two negative pressure desorption fans 63 can provide negative pressure to each adsorption box 3 through the upper collection pipe 61 and the lower collection pipe 62, respectively, to provide power for the greenhouse gas to be desorbed from the inside of the adsorption box 3 and transported to the catalytic treatment mechanism 7.

[0046] The desorption collection pipeline 6 also includes an emergency discharge pipeline 64, one end of which is connected to the discharge mechanism 5, and the emergency discharge pipeline 64 is connected to the upper collection pipeline 61 and the lower collection pipeline 62 through the emergency valve 65 respectively; the upper collection pipeline 61 and the lower collection pipeline 62 are connected to each desorption exhaust port 35 through each collection valve 66 respectively.

[0047] Each adsorption air inlet 33 is connected to the branch air inlet pipe 2 through the air inlet valve 331, and each adsorption air exhaust port 34 is connected to the converging air exhaust pipe 4 through the exhaust valve 341; the air inlet valve 331 and the exhaust valve 341 located on both sides of the same adsorption box 3 are opened and closed at the same time, and at most only one of the two collection valves 66 located on both sides of the same adsorption box 3 and the air inlet valve 331 and the exhaust valve 341 located on both sides of the same adsorption box 3 is open.

[0048] Therefore, during specific use, the upper collecting pipe 61 is respectively connected to the desorption exhaust port 35 at the top of each adsorption box 3, and the lower collecting pipe 62 is respectively connected to the desorption exhaust port 35 at the bottom of each adsorption box 3. Through the cooperation of the negative pressure desorption fan 63 and each collecting valve 66, negative pressure is provided to each adsorption box 3, providing power for greenhouse gases to be desorbed from the inside of the adsorption box 3 and transported to the catalytic treatment mechanism 7; when the front-end gas production is too large, the pressure inside each adsorption box 3 can be released through the emergency discharge pipe 64 to avoid the harm caused by excessive pressure; the air intake valve 331 and the exhaust valve 341 on both sides of the same adsorption box 3 are opened and closed at the same time, and only one of the two collecting valves 66 on both sides of the same adsorption box 3 and the air intake valve 331 and the exhaust valve 341 on both sides of the same adsorption box 3 is open, and each adsorption box 3 can be adjusted to be in the adsorption and renewal state respectively, which can ensure the continuity of greenhouse gas treatment and fully avoid greenhouse gas emissions.

[0049] The catalytic treatment mechanism 7 includes a catalytic chamber 71 and a combustion chamber 72. A return pipe 73 and a combustion exhaust fan 74 are provided at one end of the combustion chamber 72 away from the catalytic chamber 71; the upper collecting pipe 61 and the lower collecting pipe 62 are both connected to the catalytic chamber 71, and the catalytic chamber 71 and the combustion chamber 72 are connected through a transfer pipe 75 and a return pipe 73.

[0050] The discharge mechanism 5 includes a forced discharge fan 51, a discharge collecting pipe 52 and an discharge chimney 53. The converging exhaust duct 4 is connected to the discharge chimney 53 through the forced discharge fan 51. One end of the discharge collecting pipe 52 is connected to the discharge chimney 53. The other end of the discharge collecting pipe 52 is connected to the emergency discharge pipe 64 and the combustion discharge fan 74 respectively; the air intake treatment mechanism 1 includes an air intake conversion pipe 11 and a bag dust collector 12. The two ends of the bag dust collector 12 are respectively connected to the air intake conversion pipe 11 and the diversion air intake pipe 2. The gas input from the air intake conversion pipe 11 can be captured and dust-removed by the bag dust collector 12 and then input into the diversion air intake pipe 2.

[0051] When in use, the forced exhaust fan 51 can supplement the power of the exhaust gas entering from the air intake conversion pipe 11 and the bag dust collector 12, passing through the branch air intake pipe 2, each adsorption box 3 and the converging exhaust pipe 4, and can be connected to the catalyst chamber 71 through the upper collecting pipe 61 and the lower collecting pipe 62. The catalyst chamber 71 and the combustion chamber 72 are connected through the transfer pipe 75 and the return pipe 73, so that the greenhouse gas desorbed after adsorption can be fully circulated and moved between the catalyst chamber 71 and the combustion chamber 72 for treatment. In actual use, a semi-permeable membrane that can only pass through the treated greenhouse gas can be set between the combustion exhaust fan 74 and the combustion chamber 72, so that only the treated greenhouse gas can be discharged, thereby ensuring the harmlessness of the gas discharged from the exhaust chimney 53.

[0052] Example 4:

[0053] A greenhouse gas adsorption treatment method, using the greenhouse gas adsorption treatment device described in any one of Examples 1 to 3, comprises the following steps:

[0054] The waste gas containing greenhouse gases is input from the air intake treatment mechanism 1. After being captured and dusted by the air intake treatment mechanism 1, the waste gas containing greenhouse gases is respectively input into each open adsorption box 3 through the branch air intake pipe 2;

[0055] After the exhaust gas containing greenhouse gases is adsorbed by each adsorption box 3, it is discharged from the discharge mechanism 5 through the converging exhaust pipe 4;

[0056] The branch air inlet pipe 2 and the converging exhaust pipe 4 are closed, and the adsorbed greenhouse gases are released through the action of the desorption heater 32. The released greenhouse gases are input to the catalytic treatment mechanism 7 through the desorption collection pipe 6, and are processed inside the catalytic treatment mechanism 7 and then discharged through the emission mechanism 5.

[0057] Embodiment 5:

[0058] The compound fertilizer processing process is characterized in that the greenhouse gas adsorption treatment method described in Example 4 is used to adsorb and treat the greenhouse gases generated during the compound fertilizer processing, and includes the following steps:

[0059] The air intake treatment mechanism 1 is connected to the location where greenhouse gas is generated during the compound fertilizer processing, so that the waste gas containing greenhouse gas is input from the air intake treatment mechanism 1;

[0060] After the exhaust gas containing greenhouse gases is adsorbed by each adsorption box 3, it is discharged from the discharge mechanism 5 through the converging exhaust pipe 4;

[0061] After the greenhouse gas adsorbed by the adsorption box 3 is desorbed, it is input into the catalytic treatment mechanism 7 through the desorption collection pipe 6, and is processed inside the catalytic treatment mechanism 7 before being discharged through the discharge mechanism 5.

[0062] The invention can fully treat the waste gas carrying greenhouse gases generated by each step of the waste gas generation process in the compound fertilizer processing technology. After the waste gas is subjected to dust removal treatment by the air intake treatment mechanism 1, it is subjected to adsorption treatment by each adsorption box 3 and then discharged from the discharge mechanism 5 through the converging exhaust pipe 4. Each adsorption box 3 can be in adsorption and renewal state respectively. The greenhouse gas released from the adsorption box 3 in the renewal state is input to the catalytic treatment mechanism 7 through the desorption collection pipe 6, and is discharged through the discharge mechanism 5 after being processed inside the catalytic treatment mechanism 7, so as to update the adsorption capacity of the adsorption box 3, so as to fully and continuously treat the waste gas containing greenhouse gases generated in the compound fertilizer processing technology, avoid excessive gas emission pressure generated at the front end of the compound fertilizer processing technology, and avoid the problem of suspension of compound fertilizer processing due to accumulation of waste gas.

[0063] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A greenhouse gas adsorption treatment device, comprising an air intake treatment mechanism, a branch air intake pipe, a plurality of adsorption boxes, a converging exhaust pipe, and an exhaust mechanism, characterized in that: It also includes a desorption collection pipeline and a catalytic treatment mechanism; Several adsorption treatment cages are sequentially arranged inside each of the adsorption boxes from top to bottom, a desorption heater is provided inside each of the adsorption boxes, an adsorption air inlet and an adsorption exhaust port are provided at the top and bottom of each of the adsorption boxes, and a desorption exhaust port is also provided at the top and bottom of each of the adsorption boxes; One end of the split air intake pipe is connected to the air intake processing mechanism, and each of the adsorption boxes is connected to the split air intake pipe through the adsorption air inlet. One end of the converging exhaust pipe is connected to the discharge mechanism, and each of the adsorption boxes is connected to the discharge mechanism through the adsorption exhaust port. Both ends of the catalytic treatment mechanism are communicated with the desorption collection pipe and the discharge mechanism respectively, and each of the desorption exhaust ports is communicated with the desorption collection pipe.

2. The greenhouse gas adsorption treatment device according to claim 1, characterized in that: Each of the adsorption treatment cages inside the adsorption box is filled with a solid adsorbent, and the desorption heater includes a main mixing impeller and a plurality of auxiliary mixing impellers, and the mixing impeller and each of the auxiliary mixing impellers can sequentially penetrate each of the adsorption treatment cages; The main mixing impeller and each of the auxiliary mixing impellers are located inside each of the adsorption treatment cages and are provided with stirring blades. A heating wire is provided inside each of the stirring blades. The main mixing impeller and each of the auxiliary mixing impellers rotate in opposite directions.

3. The greenhouse gas adsorption treatment device according to claim 2, characterized in that: A mixing drive unit is also provided inside the adsorption box, and the mixing drive unit includes a central driving gear, a plurality of external driving gears and a mixing drive motor. The two ends of the central driving gear are coaxially fixed with the mixing drive motor and the main mixing impeller, and each of the external driving gears is coaxially fixed with each of the auxiliary mixing impellers, and each of the external driving gears is engaged with the central driving gear.

4. The greenhouse gas adsorption treatment device according to claim 1, characterized in that: The desorption collection pipeline includes an upper collection pipeline and a lower collection pipeline, and the upper collection pipeline and the lower collection pipeline are respectively connected to the catalytic treatment mechanism through two negative pressure desorption fans; The upper collecting pipe is respectively connected to the desorption exhaust port at the top of each adsorption box, and the lower collecting pipe is respectively connected to the desorption exhaust port at the bottom of each adsorption box; The two negative pressure desorption fans can provide negative pressure to each of the adsorption boxes through the upper collecting pipe and the lower collecting pipe respectively, providing power for desorbing greenhouse gases from the inside of the adsorption box and transporting them to the catalytic treatment mechanism.

5. The greenhouse gas adsorption treatment device according to claim 4, characterized in that: The desorption collection pipeline further includes an emergency discharge pipeline, one end of which is connected to the discharge mechanism, and the emergency discharge pipeline is connected to the upper collection pipeline and the lower collection pipeline through emergency valves respectively; The upper collecting pipe and the lower collecting pipe are respectively communicated with the desorption exhaust ports through respective collecting valves.

6. The greenhouse gas adsorption treatment device according to claim 5, characterized in that: Each of the adsorption air inlets is connected to the branch air inlet pipe via an air inlet valve, and each of the adsorption air exhaust ports is connected to the converging air exhaust pipe via an air exhaust valve. The intake valve and the exhaust valve located on both sides of the same adsorption box are opened and closed at the same time, and at most only one of the two collection valves located on both sides of the same adsorption box and the intake valve and the exhaust valve located on both sides of the same adsorption box is open.

7. The greenhouse gas adsorption treatment device according to claim 6, characterized in that: The catalytic treatment mechanism includes a catalytic chamber and a combustion chamber, and the combustion chamber is provided with a return pipe and a combustion exhaust fan at one end away from the catalytic chamber; The upper collecting pipe and the lower collecting pipe are both communicated with the catalytic chamber, and the catalytic chamber and the combustion chamber are communicated with each other through a transfer pipe and the reflux pipe.

8. The greenhouse gas adsorption treatment device according to claim 7, characterized in that: The discharge mechanism includes a forced discharge fan, a discharge collection pipe and a discharge chimney, the converging exhaust duct is connected to the discharge chimney through the forced discharge fan, one end of the discharge collection pipe is connected to the discharge chimney, and the other end of the discharge collection pipe is respectively connected to the emergency discharge pipe and the combustion discharge fan; The air intake processing mechanism includes an air intake conversion pipe and a bag dust collector. The two ends of the bag dust collector are respectively connected to the air intake conversion pipe and the branch air intake pipe. The gas input from the air intake conversion pipe can be captured and dusted by the bag dust collector and then input into the branch air intake pipe.

9. A greenhouse gas adsorption treatment method, characterized in that: The greenhouse gas adsorption treatment device according to any one of claims 1 to 8 is used, comprising the following steps: The waste gas containing greenhouse gases is input from the air intake treatment mechanism, and the waste gas containing greenhouse gases after being captured and dusted by the air intake treatment mechanism is respectively input into each open adsorption box through the branch air intake pipe; After being adsorbed by each adsorption box, the waste gas containing greenhouse gases is discharged from the emission mechanism through the converging exhaust pipe; The branch air inlet duct and the converging exhaust duct are closed, and the adsorbed greenhouse gases are released through the action of the desorption heater. The released greenhouse gases are input to the catalytic treatment mechanism through the desorption collection pipe, and are discharged through the emission mechanism after being processed inside the catalytic treatment mechanism.

10. A compound fertilizer processing technology, characterized in that: The greenhouse gas adsorption treatment method according to claim 9 is used to adsorb and treat greenhouse gases generated during the processing of compound fertilizers, comprising the following steps: Connecting the air intake treatment mechanisms to locations where greenhouse gases are generated during the compound fertilizer processing process, so as to input waste gas containing greenhouse gases from the air intake treatment mechanisms; After being adsorbed by each adsorption box, the waste gas containing greenhouse gases is discharged from the emission mechanism through the converging exhaust pipe; After the greenhouse gases adsorbed by the adsorption box are desorbed, they are input into the catalytic treatment mechanism through the desorption collection pipeline, and are processed inside the catalytic treatment mechanism before being discharged through the emission mechanism.

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