Blanking system and low-temperature adsorption unit

Abstract

The invention discloses a blanking system and a low-temperature adsorption unit.The blanking system comprises multiple stages of discharge hoppers and at least one blanking pipe, each discharge hopper is provided with a top opening and a bottom discharging opening, the multiple stages of discharge hoppers are arranged at intervals in the vertical direction, and the discharge hoppers are used for receiving discharged materials of a material layer located above the discharge hoppers; the top end of the discharging pipe is communicated with a discharging opening in the bottom of the upper-stage discharging hopper, the discharging pipe extends downwards, and the bottom end of the discharging pipe is opposite to an opening in the top of the lower-stage discharging hopper. According to the discharging system, discharging of multiple material layers is achieved, the discharging pipes are arranged to convey materials from the upper-stage discharging hopper to the lower-stage discharging hopper, a discharging pipeline does not need to be arranged between each discharging hopper and the waste conveying device, the number and the length of the pipelines arranged in the discharging system are reduced, and the discharging efficiency is improved. Therefore, the blanking system provided by the embodiment of the invention has the advantages of low structural complexity and small occupied space.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas adsorption, and in particular to a material dropping system and a low-temperature adsorption unit. Background Art

[0002] The basic principle of flue gas adsorption technology is to remove pollutant components from flue gas through the adsorption principle of adsorbents. The flue gas adsorption system proposed in the related art uses an adsorption tower to adsorb and purify the flue gas. The adsorption tower is classified according to the setting method of the adsorption bed in the adsorption tower. Common adsorption tower types include fixed bed adsorption tower, moving bed adsorption tower and fluidized bed adsorption tower. However, the adsorption towers in the related art generally have the problems of small flue gas treatment volume and low treatment efficiency, which makes the adsorption cost high. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a blanking system.

[0004] An embodiment of the present invention further provides a low-temperature adsorption unit.

[0005] The material discharge system of an embodiment of the present invention includes: a multi-stage discharge hopper, each of which has a top opening and a bottom discharge port, and the multi-stage discharge hoppers are spaced apart in the vertical direction, and the discharge hoppers are used to receive the discharge of the material layer located above them; at least one discharge pipe, the discharge pipe is used to connect the upper and lower discharge hoppers, the top end of the discharge pipe is connected to the bottom discharge port of the upper discharge hopper, and the discharge pipe extends downward and its bottom end is opposite to the top opening of the lower discharge hopper.

[0006] The material dropping system provided by the embodiment of the present invention includes a multi-stage discharge hopper arranged at intervals in the vertical direction, so that the material dropping of multiple layers can be realized. The multiple layers are arranged in the vertical direction, and the amount of flue gas processed per unit time is significantly increased without expanding the floor area. The setting of the discharge pipe realizes the conveying of materials from the upper discharge hopper to the lower discharge hopper without setting a discharge pipe between each discharge hopper and the waste conveying device, thereby reducing the number and length of pipes set in the material dropping system. Therefore, the material dropping system provided by the embodiment of the present invention has the advantages of low structural complexity and small space occupied.

[0007] Optionally, the discharge pipe is used to connect two adjacent discharge hoppers, and the upper discharge hopper is opposite to the top opening of the adjacent lower discharge hopper through the discharge pipe, so that the adsorbent in the uppermost discharge hopper can be merged with the adsorbent in each lower discharge hopper from top to bottom in sequence, and finally the merged adsorbent is discharged from the lowermost discharge hopper and transported to the regeneration device by the waste conveying device located below for regeneration, thereby greatly reducing the structural complexity of the discharge system and reducing the space occupied.

[0008] Optionally, each of the remaining discharge hoppers except the lowest discharge hopper includes a plurality of sub-discharge hoppers arranged in parallel, the bottom discharge ports of the plurality of sub-discharge hoppers are connected to the plurality of discharge pipes one by one, and the lowest discharge hopper corresponds to the adjacent plurality of discharge pipes located above it, so that the discharge of the plurality of discharge pipes can be discharged through the lowest discharge hopper. Compared with the structure of a single large discharge hopper, the size of the sub-discharge hopper is smaller, so the height occupied in the vertical direction is smaller, which helps to reduce the overall height of the tower body and has a beneficial effect on the structural stability of the tower body.

[0009] Optionally, the discharge hopper is provided with a plurality of ribs extending in the vertical direction, the bottom ends of the ribs are connected to the inner wall surface of the discharge hopper, and the angle between the ribs and the inner wall surface of the discharge hopper is 30°-60°. The ribs are arranged on the inner wall surface of the discharge hopper so that a certain material storage area is formed between the ribs and the inner wall surface of the discharge hopper. When the material enters the discharge hopper, the material close to the inner wall surface of the discharge hopper enters the material storage area between the ribs and the inner wall surface of the discharge hopper. The cloth in the middle of the discharge hopper does not directly contact the inner wall surface of the discharge hopper during the falling process, but contacts the material in the material storage area. The friction between the materials is greatly weakened compared with the friction between the materials and the inner wall surface, so the problem of increased dust caused by material wear can be effectively avoided.

[0010] Optionally, the rib is annular, and a plurality of the ribs are arranged in sequence in the vertical direction along the inner wall surface of the discharge hopper.

[0011] Optionally, a plurality of the ribs are spaced apart in the vertical direction, and in the longitudinal section of the discharge hopper, among two adjacent ribs, the angle between the line connecting the top peripheral edge of the rib located below and the bottom peripheral edge of the rib located above and the horizontal plane is 15°-30°, which can make the material fall smoothly in the discharge hopper 140 without basically contacting or rubbing against the inner wall surface of the discharge hopper 140.

[0012] The basic principle of low-temperature flue gas adsorption technology is to remove pollutant components from low-temperature flue gas through the adsorption principle of adsorbents. In the low-temperature environment of the sub-zero temperature range, nitrogen oxides in the flue gas undergo low-temperature oxidation adsorption on the surface of adsorbents such as activated carbon, oxidizing the difficult-to-adsorb nitric oxide gas into easily adsorbed nitrogen dioxide gas, achieving a hundreds-fold increase in adsorption capacity. In addition, the adsorption capacity of components such as sulfur dioxide, carbon dioxide and heavy metals is also multiplied in low-temperature environments.

[0013] Another aspect of the present invention provides a low-temperature adsorption unit, comprising: a plurality of adsorption modules, the adsorption modules being stacked in a vertical direction, the adsorption modules being provided with an adsorption area for accommodating an adsorbent, the adsorption modules being provided with a flue gas inlet for inputting low-temperature flue gas with a temperature below zero and a flue gas outlet for outputting clean flue gas adsorbed by the adsorbent; a blanking system, the plurality of discharge hoppers of the blanking system corresponding one-to-one to the plurality of adsorption modules, the discharge hoppers being used to discharge the adsorbent in the adsorption area of ​​the corresponding adsorption module.

[0014] The low-temperature adsorption unit provided in an embodiment of the present invention has multiple adsorption modules stacked in the vertical direction. An adsorption layer can be arranged in each adsorption module, and a flue gas inlet and a flue gas outlet are provided. Therefore, each adsorption module can perform an independent flue gas treatment process, thereby greatly improving the flue gas treatment capacity of the low-temperature adsorption unit per unit time. In addition, the way the adsorption modules are stacked in the vertical direction makes the low-temperature adsorption unit have the advantages of small footprint and high practical value.

[0015] The cryogenic adsorption unit adopts a multi-stage unloading hopper of the dropping system to carry out one-to-one unloading of multiple adsorption modules, and cooperates with the setting of a unloading pipe to realize the transportation of the adsorbent from the upper unloading hopper to the lower unloading hopper, and then unloads it into the waste conveying device from the lower unloading hopper, without the need to set up a unloading pipe between each unloading hopper and the waste conveying device, thereby reducing the number and length of the unloading pipes in the cryogenic adsorption unit, reducing the structural complexity of the cryogenic adsorption unit, and improving the space utilization inside the cryogenic adsorption unit.

[0016] Optionally, the low-temperature adsorption unit also includes a packing system, which includes a multi-stage packing device, the multi-stage packing devices correspond one-to-one to the multiple adsorption modules, the multiple packing devices of the packing system correspond one-to-one to the multiple adsorption modules, and the packing devices are used to fill adsorbent into the adsorption area of ​​the corresponding adsorption module to form an adsorption layer.

[0017] Optionally, the filler includes a filling pipe for feeding material to the corresponding adsorption module, and at least one of the remaining fillers except the bottom filler includes a chute for feeding material to the at least one filler. In two adjacent levels of fillers, the chute of the upper filler is used to feed material to the lower filler, so that the adsorbent is fed from the top filler to the multiple levels of fillers from top to bottom in sequence, thereby reducing the number and length of the feed pipelines in the low-temperature adsorption unit, reducing the complexity of the structure, and improving the space utilization inside the low-temperature adsorption unit.

[0018] Optionally, the adsorption module includes a tower and a distributor and a dropper arranged in the tower from top to bottom, the adsorption zone is formed between the distributor and the dropper, the filler feeds material to the top of the distributor, the distributor is used to evenly distribute the adsorbent in the adsorption zone, and the dropper is used to evenly unload the adsorbent at the bottom of the adsorption zone into the discharge hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front cross-sectional view of a low-temperature adsorption unit provided in an embodiment of the present invention.

[0020] Figure 2 It is a side cross-sectional view of a low-temperature adsorption unit provided in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of a discharge hopper provided in an embodiment of the present invention.

[0022] Figure 4 It is a side cross-sectional view of an adsorption module provided in an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of a discharge device of a low-temperature adsorption system provided in an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the operating principle of the low-temperature adsorption unit provided in an embodiment of the present invention.

[0025] Figure 7 It is a front view of a low-temperature adsorption system provided by an embodiment of the present invention.

[0026] Figure 8 It is a front cross-sectional view of a low-temperature adsorption system provided in an embodiment of the present invention.

[0027] Fig. 9 It is a rear view of the low-temperature adsorption system provided by an embodiment of the present invention.

[0028] Fig.10 It is a side view of a low-temperature adsorption system provided by an embodiment of the present invention.

[0029] Reference numerals:

[0030] Adsorption module 100, adsorption layer 101, transition layer 102,

[0031] Tower 110, smoke inlet 111, smoke outlet 112, manhole 113,

[0032] The material distributor 120, the material distributor cone 121, the material distributor pipe 122,

[0033] The material dropper 130, the material drop cone 131, the material drop pipe 132, the material discharge hopper 133,

[0034] Discharge hopper 140, rib plate 141, sub-discharge hopper 142,

[0035] Unloading device 150, material tray 151, material rake 152, hydraulic rod equipment 153,

[0036] Discharge pipe 160,

[0037] Input platform section 171, output platform section 172, smoke input pipe 173, smoke output pipe 174,

[0038] Filling system 200, filler 210, filling pipe 211, slide pipe 212, distribution chamber 213, feeding pipe 220,

[0039] Cryogenic adsorption unit 300 and cryogenic adsorption system 400 . DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] According to the following Figure 1-Figure 10 The blanking system provided by the embodiment of the present invention and the low-temperature adsorption unit 300 having the blanking system are described.

[0042] The material discharge system includes a multi-stage discharge hopper 140 and at least one discharge pipe 160. The discharge hopper 140 has a top opening and a bottom discharge port. The multi-stage discharge hopper 140 is arranged at intervals in the vertical direction. The discharge hopper 140 is used to receive the discharge of the material layer located above it. In other words, the multi-layer discharge hopper 140 can correspond to the multi-layer material layers arranged at intervals in the vertical direction one by one, and the material layer is located above the corresponding discharge hopper 140, and the material in the material layer falls into the adjacent discharge hopper 140 below for discharge. Optionally, the material layer is an adsorbent layer for purifying gas, and the discharge hopper 140 discharges the adsorption saturated adsorbent falling from the bottom of the adsorption layer. Of course, the material layer can also be a material layer formed by stacking other materials, and the discharge hopper 140 is used to discharge the material in the corresponding material layer.

[0043] The down pipe 160 is used to connect the upper and lower discharge hoppers 140. The top of the down pipe 160 is connected to the bottom discharge port of the upper discharge hopper 140, and the down pipe 160 extends downward and its bottom end is opposite to the top opening of the lower discharge hopper 140, so the material in the upper discharge hopper 140 is sent to the lower discharge hopper 140 through the down pipe 160, and the material can be discharged through the lower discharge hopper 140, and can also be filled into the discharge hopper 140 located below the lower discharge hopper 140 through the down pipe 160 of the lower discharge hopper 140.

[0044] It should be noted that the upper and lower discharge hoppers 140 connected by the discharge pipe 160 can be adjacent discharge hoppers 140 or non-adjacent discharge hoppers 140. In other words, the discharge hopper 140 can discharge material into the adjacent discharge hopper 140 below it through the discharge pipe 160, and can also feed material into any non-adjacent discharge hopper 140 below it through the discharge pipe 160.

[0045] The material dropping system provided by the embodiment of the present invention includes a multi-stage discharge hopper arranged at intervals in the vertical direction, so that the material dropping of multiple layers can be realized. The multiple layers are arranged in the vertical direction, and the amount of flue gas processed per unit time is significantly increased without expanding the floor area. The setting of the discharge pipe realizes the conveying of materials from the upper discharge hopper to the lower discharge hopper without setting a discharge pipe between each discharge hopper and the waste conveying device, thereby reducing the number and length of pipes set in the material dropping system. Therefore, the material dropping system provided by the embodiment of the present invention has the advantages of low structural complexity and small space occupied.

[0046] In some optional embodiments, except for the lowest discharge hopper 140, the bottoms of some of the other discharge hoppers 140 are connected to a discharge pipe 160 for discharging to the lower discharge hopper 140, and the bottoms of other discharge hoppers 140 are directly discharged to the waste conveying device through a discharge channel. In other optional embodiments, except for the lowest discharge hopper 140, the bottom discharge ports of the other discharge hoppers 140 are all connected to the discharge pipe 160.

[0047] In some preferred embodiments, the discharge pipe 160 is used to connect two adjacent discharge hoppers 140, and the upper discharge hopper 140 is opposite to the top opening of the adjacent lower discharge hopper 140 through the discharge pipe 160. Further preferably, except for the lowest discharge hopper 140, the bottom discharge ports of the remaining discharge hoppers 140 are all connected to the discharge pipe 160. That is, in two adjacent discharge hoppers 140, the discharge pipe 160 connected to the bottom of the upper discharge hopper 140 discharges into the lower discharge hopper 140, so that the adsorbent in the upper discharge hopper 140 can be merged with the adsorbent in each lower discharge hopper 140 from top to bottom in sequence, and finally the merged adsorbent is discharged from the lowest discharge hopper 140 and transported to the regeneration device by the waste conveying device located below for regeneration, thereby greatly reducing the structural complexity of the discharge system and reducing the occupied space.

[0048] In some embodiments, each of the remaining discharge hoppers 140 except the lowest discharge hopper 140 includes a plurality of sub-discharge hoppers 142 arranged in parallel, and the bottom discharge ports of the plurality of sub-discharge hoppers 142 are connected to a plurality of discharge pipes 160 in a one-to-one correspondence. The lowest discharge hopper 140 corresponds to the adjacent plurality of discharge pipes 160 located above it, so that the discharge of the plurality of discharge pipes 160 can be discharged through the lowest discharge hopper 160.

[0049] As an example, Figure 1 and Figure 2 As shown, except for the bottom discharge hopper 140, each of the other discharge hoppers 140 includes four sub-discharge hoppers 142, and the four sub-discharge hoppers 142 are arranged in two rows. The four sub-discharge hoppers 142 in the two adjacent discharge hoppers 140 are opposite to each other in the vertical direction, and the upper sub-discharge hopper 142 is connected to the corresponding lower sub-discharge hopper 142 through a discharge pipe 160. The discharge hopper 140 at the bottom is a single discharge hopper 140, which is larger in size. The four discharge pipes 160 connected to the bottom of the four adjacent sub-discharge hoppers 142 above the bottom discharge hopper 140 are opposite to the top opening of the bottom single discharge hopper 140, so as to discharge all the materials into the bottom single discharge hopper 140.

[0050] The remaining discharge hoppers 140 except the lowest discharge hopper 140 are divided into multiple sub-discharge hoppers 142, so that the materials can be discharged into the multiple sub-discharge hoppers 142 in a dispersed manner, that is, each sub-discharge hopper 142 bears a part of the discharge pressure. Compared with the structure of a single large discharge hopper 140, the sub-discharge hopper 142 is smaller in size, and therefore occupies a smaller height in the vertical direction, which helps to reduce the overall height of the tower body and has a beneficial effect on the structural stability of the tower body.

[0051] The material enters the discharge hopper 140 from the top opening of the discharge hopper 140, and part of the material close to the inner wall of the discharge hopper 140 slides or rolls downward along the inner wall of the discharge hopper 140. The material is in contact and friction with the inner wall of the discharge hopper 140, and the material is lost to a certain extent, and material powder is generated, which increases the amount of dust in the flue gas.

[0052] In order to solve the above problems, in some embodiments of the present invention, a plurality of ribs 141 extending in the vertical direction are provided in the discharge hopper 140, such as Figure 3As shown, the bottom end of the rib plate 141 is connected to the inner wall surface of the discharge hopper 140, and the inner wall surface of the discharge hopper 140 is an inclined surface, and the angle between the rib plate 141 and the inner wall surface of the discharge hopper 140 is 30°-60°. The rib plate 141 is arranged on the inner wall surface of the discharge hopper 140, so that a certain material storage area is formed between the rib plate 141 and the inner wall surface of the discharge hopper 140. When the material enters the discharge hopper 140, the material close to the inner wall surface of the discharge hopper 140 enters the material storage area between the rib plate 141 and the inner wall surface of the discharge hopper 140. The cloth in the middle of the discharge hopper 140 does not directly contact the inner wall surface of the discharge hopper 140 during the falling process, but contacts the material in the material storage area. The friction between the materials is greatly weakened compared with the friction between the materials and the inner wall surface, so the problem of increased dust caused by material wear can be effectively avoided.

[0053] As an example, in Figure 3 In the embodiment shown, in the longitudinal section of the discharge hopper 140, the angle between the inner wall surfaces relative to each other is a, the discharge hopper 140 is a symmetrical structure, and the angle between the rib plate 141 and the inner wall surface of the discharge hopper 140 is 1 / 2a. The angle between the rib plate 141 and the inner wall surface of the discharge hopper 140 is 30°-60°, and the structure of the discharge hopper 140 is more reasonable. If the angle between the rib plate 141 and the inner wall surface of the discharge hopper 140 is less than 30°, that is, the angle a is less than 60°, the top opening size of the discharge hopper 140 will be smaller, and the amount of material received will be less. If the angle between the rib plate 141 and the inner wall surface of the discharge hopper 140 is greater than 60°, that is, the angle a is greater than 120°, the inclination of the inner wall surface of the discharge hopper 140 will be insufficient, and the discharge of materials may be blocked.

[0054] As an example, in Figure 3 In the illustrated embodiment, the rib plate 141 is annular, and a plurality of rib plates 141 are arranged in sequence in the vertical direction along the inner wall surface of the discharge hopper 140 .

[0055] Optionally, multiple ribs 141 are spaced apart in the vertical direction, and in the longitudinal section of the discharge hopper 140, among two adjacent ribs 141, the angle b between the line connecting the top peripheral edge of the lower rib 141 and the bottom peripheral edge of the upper rib 141 and the horizontal plane is 15°-30°.

[0056] like Figure 3As shown, the top edge of the rib plate 141 located below is located below the bottom edge of the rib plate 141 located above, and the line connecting the two can be basically regarded as the interface between the material stored in the storage area and the falling material during unloading, that is, the interface between the static material and the active material moving with each other. Making the line connecting the top edge of the rib plate 141 located below and the bottom edge of the rib plate 141 located above an oblique line can make the material roll down more smoothly. If the angle b is less than 15°, the rolling rate of the material near the interface may be too slow or even blocked. If the angle b is greater than 30°, the distance between the two adjacent layers of rib plates 141 will be too large, and a part of the material will still contact the inner wall surface of the discharge hopper 140 to generate friction.

[0057] Therefore, in the longitudinal section of the discharge hopper 140, the angle b between the line connecting the top peripheral edge of the rib 141 located below and the bottom peripheral edge of the rib 141 located above and the horizontal plane is 15°-30°, which can make the material fall smoothly in the discharge hopper 140 without basically contacting and rubbing against the inner wall surface of the discharge hopper 140.

[0058] The low-temperature adsorption unit 300 provided in the embodiment of the present invention includes a plurality of adsorption modules 100 and a material discharge system. The adsorption modules 100 are stacked in the vertical direction, and an adsorption area for accommodating an adsorbent is provided in the adsorption module 100, and the adsorbent forms an adsorption layer 101 in the adsorption area. The plurality of discharge hoppers 140 of the material discharge system correspond to the plurality of adsorption modules 100 one by one, and the discharge hopper 140 is used to discharge the adsorbent in the adsorption area of ​​the corresponding adsorption module 100.

[0059] The adsorption module 100 is provided with a flue gas inlet 111 and a flue gas outlet 112. The flue gas inlet 111 is used to introduce low-temperature flue gas with a temperature below zero into the tower 110. The low-temperature flue gas entering the tower 110 contacts the adsorbent of the adsorption layer 101 in the adsorption area and is adsorbed by the adsorbent to form clean flue gas. The flue gas outlet 112 is used to output the clean flue gas after adsorption by the adsorption layer 101.

[0060] The low-temperature adsorption unit provided in an embodiment of the present invention has multiple adsorption modules stacked in the vertical direction. An adsorption layer can be arranged in each adsorption module, and a flue gas inlet and a flue gas outlet are provided. Therefore, each adsorption module can perform an independent flue gas treatment process, thereby greatly improving the flue gas treatment capacity of the low-temperature adsorption unit per unit time. In addition, the way the adsorption modules are stacked in the vertical direction makes the low-temperature adsorption unit have the advantages of small footprint and high practical value.

[0061] The cryogenic adsorption unit adopts a multi-stage unloading hopper of the dropping system to carry out one-to-one unloading of multiple adsorption modules, and cooperates with the setting of a unloading pipe to realize the transportation of the adsorbent from the upper unloading hopper to the lower unloading hopper, and then unloads it into the waste conveying device from the lower unloading hopper, without the need to set up a unloading pipe between each unloading hopper and the waste conveying device, thereby reducing the number and length of the unloading pipes in the cryogenic adsorption unit, reducing the structural complexity of the cryogenic adsorption unit, and improving the space utilization inside the cryogenic adsorption unit.

[0062] In some embodiments, the low-temperature adsorption unit 300 also includes a filling system 200, which includes a multi-stage filler 210. The multi-stage filler 210 corresponds one-to-one to multiple adsorption modules 100. The filler 210 is used to fill the adsorption area of ​​the corresponding adsorption module 100 with adsorbent to form an adsorption layer.

[0063] Furthermore, the filler 210 includes a filling pipe 211, and the filling pipes 211 of the multi-stage filler 210 are respectively used to feed materials above the distributors 120 of the multiple adsorption modules 100. Except for the lowest filler 210, at least one of the remaining fillers 210 also includes a chute 212 for feeding materials to the filler 210 below the at least one filler 210.

[0064] That is, all the fillers 210 include a filling tube 211, and the number of the filling tubes 211 can be one or more. The filling tube 211 of the filler 210 is used to feed material to the top of the distributor 120 of the adsorption module 100 corresponding to the filler 210, so as to form a Figure 6 In addition to the filler 210 corresponding to the bottom adsorption module 100, at least one of the other fillers 210 further includes a slide pipe 212, which is used to feed materials to any one or more fillers 210 below. This is because there are no other fillers 210 below the filler 210 corresponding to the bottom adsorption module 100, so the function of the filler 210 corresponding to the bottom adsorption module 100 is to fill the adsorption module 100, and it only needs to be provided with a filling pipe 211, and no slide pipe 212 is required.

[0065] The filler 210 provided with the slide pipe 212 can feed material to the filler 210 adjacent thereto through the slide pipe 212, and can also feed material to any filler 210 not adjacent thereto through the slide pipe 212. The setting of the slide pipe 212 enables the adsorbent to be transported from the upper filler 210 to the lower filler 210, thereby reducing the number and length of the material delivery pipelines in the cryogenic adsorption unit 300, reducing the complexity of the structure, and improving the space utilization rate inside the cryogenic adsorption unit 300.

[0066] More preferably, if Figure 2 As shown, in two adjacent stages of fillers 210, the slide pipe 212 of the upper stage filler 210 is used to feed materials to the lower stage filler 210, so that the adsorbent is fed into each filler 210 from top to bottom in sequence from the topmost filler 210. That is to say, the feeding system only needs to feed materials to the topmost filler 210, and a part of the adsorbent is fed into the topmost adsorption module 100 through the filling pipe 211 of the topmost filler 210, and the other part is fed into the second-stage filler 210 adjacent below through the slide pipe 212. A part of the adsorbent in the second-stage filler 210 is fed into the second-layer adsorption module 100 through the filling pipe 212, and the other part is fed into the third-stage filler 210 adjacent below through the slide pipe 212, and so on, until the last part of the adsorbent reaches the bottommost filler 210 and is filled into the bottommost adsorption module 100 through the filling pipe 211 of the filler 210.

[0067] It is understandable that the above description is implemented when the number of stages of the filler 210 is greater than or equal to 3. In some optional embodiments, the filler 210 includes two stages, and the upper-level filler 210 feeds material to the lower-level filler 210 and the material is distributed into the bottom material layer to complete the filling process.

[0068] In some specific embodiments, the filling system 200 includes a feeding pipe 220, which is used to connect the upper and lower fillers 210. The top end of the feeding pipe 220 is connected to the chute 212 of the upper filler 210, and the bottom end of the feeding pipe 220 is at least connected to the filling pipe 211 of the lower filler 210. Therefore, part of the material in the upper filler 210 is fed into the lower filler 210 through the chute 212 and the feeding pipe 220 connected to the chute 212, and can at least be filled into the material layer corresponding to the lower filler 210 through the filling pipe 211 of the lower filler 210.

[0069] In some specific embodiments, in order to achieve the distribution of the adsorbent between the filling pipe 211 and the slide pipe 212. Figure 4As shown, the filler 210 has a distribution chamber 213, and the filling pipe 211 of the lowest filler 210 is connected to the distribution chamber 213, and the adsorbent in the distribution chamber 212 of the filler 210 is all discharged through the filling pipe 211. The filling pipes 211 and the slide pipes 212 of the remaining fillers 210 (fillers 210 except the lowest filler 210) are all connected to the distribution chamber 213, and the slide pipes 212 of the fillers 210 are connected to the distribution chamber 213 of the lower-level filler 210, and the distribution chamber 213 is used to distribute the adsorbent to the filling pipes 211 and the slide pipes 212. That is to say, the filler 210 distributes the adsorbent through the distribution chamber 213, a part of the adsorbent entering the distribution chamber 213 is filled above the distributor 120 through the filling pipe 211, and the other part is discharged into the distribution chamber 213 of the lower-level filler 210 through the chute 212, and then the adsorbent is distributed by the distribution chamber 213 of the lower-level filler 210.

[0070] As an example, Figure 2 As shown, in two adjacent stages of fillers 210, the slide pipe 212 of the upper stage filler 210 is used to feed material into the distribution chamber 213 of the lower stage filler 210 (i.e., the lower adjacent filler 210). In other words, the adsorbents in the distribution chambers 213 of the remaining fillers 210 except the uppermost filler 210 are all from the slide pipe 212 of the upper adjacent filler 210.

[0071] Furthermore, in some embodiments, in order to improve the space utilization rate in the low temperature adsorption unit 300, as Figure 2 As shown, the distribution chamber 213 of the filler 210 is located in the discharge hopper 140 of the upper adjacent adsorption module 100, and the filling pipe 211 and the chute 212 of the filler 210 both pass through the wall of the discharge hopper 140 and extend to the outside of the discharge hopper 140. The filling pipe 211 extends to the outside of the discharge hopper 140 to fill the distributor 120 of the adsorption module 100 corresponding to the filler 210. The chute 212 extends to the outside of the discharge hopper 140 to feed the material to the filler 210 below.

[0072] In some embodiments, Figure 4 As shown, the filler 210 has a plurality of filling pipes 211, and the discharge ports of the plurality of filling pipes 211 are substantially located on the same horizontal plane. The filling pipes 211 of the remaining fillers 210 except the lowest filler 210 are arranged at intervals around the chute 212 thereof. The plurality of filling pipes 211 are arranged, and the discharge ports thereof are substantially located on the same horizontal plane, so that the adsorbent passes through the plurality of filling pipes 211 and falls into the transition layer 102, which can reduce the stacking angle of the transition layer 102 and help the distributor 120 to distribute the material evenly.

[0073] The ratio of the adsorbent distributed from the distribution chamber 213 to the filling pipe 211 and the slide pipe 212 is appropriately adjusted by adjusting the ratio of the cross-sectional area of ​​the filling pipe 211 to the cross-sectional area of ​​the slide pipe 212 , so that the adsorbent can be fully and evenly distributed to each adsorption module 100 .

[0074] In some embodiments, the adsorption module 100 includes a tower 110, a distributor 120, and a dropper 130. The distributor 120 and the dropper 130 are arranged in the tower 110 from top to bottom, and the discharge hopper 140 is arranged below the dropper 130. The adsorption zone is formed between the distributor 120 and the dropper 130, the filler 210 is used to feed material above the distributor 120, the distributor 120 is used to evenly distribute the adsorbent in the adsorption zone to form an adsorption layer 101, and the dropper 130 is used to evenly discharge the adsorbent at the bottom of the adsorption zone into the discharge hopper 140, and finally discharge it from the discharge hopper 140.

[0075] The tower 110 is also provided with a flue gas inlet 111 and a flue gas outlet 112. The low-temperature flue gas entering the tower 110 from the flue gas inlet 111 contacts the adsorbent of the adsorption layer 101 in the adsorption zone and is adsorbed by the adsorbent to form clean flue gas. The flue gas outlet 112 is used to output the clean flue gas adsorbed by the adsorption layer 101. The arrangement of the distributor 120 and the dropper 130 can reduce the stacking angle, and basically form an adsorption layer 101 with uniform thickness in the adsorption zone to avoid uneven contact between the flue gas and the adsorbent in the adsorption layer and affect the flue gas purification rate. Therefore, the adsorption layer 101 with uniform thickness is crucial to the adsorption effect of the flue gas.

[0076] In some embodiments, Figure 7 and Fig. 9 As shown, the smoke inlet 111 and the smoke outlet 112 are both long strip openings extending in the horizontal direction. Figure 2 As shown, the adsorption module 100 also includes an input platform section 171 correspondingly connected to its smoke inlet 111 and an output platform section 172 correspondingly connected to its smoke outlet 112. The input platform section 171 and the output platform section 172 are both platform structures, and the upper and lower surfaces of the input platform section 171 and the output platform section 172 are parallel to each other and arranged horizontally. The input platform section 171 and the output platform section 172 both have an air inlet end and an air outlet end.

[0077] The low-temperature adsorption unit 300 includes a flue gas input pipe 173 and a flue gas output pipe 174. The air inlet ends of the multiple input platform sections 171 of the multiple adsorption modules 100 are all connected to the flue gas input pipe 173, and the air outlet ends of the input platform sections 171 are connected to the flue gas inlet 111 of the corresponding adsorption module 100. The low-temperature flue gas in the flue gas input pipe 173 enters the multiple adsorption modules 100 through the multiple connected input platform sections 171. The air inlet end of the output platform section 172 is connected to the flue gas outlet 112, and the air outlet end is connected to the flue gas output pipe 174. The clean flue gas in the multiple adsorption modules 100 adsorbed by the adsorption layer 101 is discharged from the corresponding flue gas outlet 112, and is merged into the flue gas output pipe 174 through the output platform section 172, and is discharged into the subsequent equipment through the flue gas output pipe 174.

[0078] Among them, the width of the input platform section 171 gradually increases toward the direction close to the flue gas inlet 111 to cooperate with the long-shaped flue gas inlet 111, so that the low-temperature flue gas in the flue gas input pipe 173 is dispersed and sent into the long-shaped flue gas inlet 111, so that the flue gas is uniformly and dispersedly input into the tower 110 to contact the adsorbent, which helps to improve the adsorption effect of the flue gas. The width of the output platform section 172 gradually increases toward the direction close to the flue gas outlet 112 to cooperate with the long-shaped flue gas outlet 112, so that the flue gas at the flue gas outlet 112 is merged and sent into the flue gas output pipe 174. The setting of the long-shaped flue gas outlet 112 is conducive to reducing the pressure at the flue gas outlet 112, so that the clean flue gas can be discharged smoothly from the tower 110.

[0079] In some embodiments, Figure 4 As shown, the distributor 120 includes a plurality of distribution cones 121 arranged in parallel, the lower ends of the distribution cones 121 are connected to distribution pipes 122, the upper parts of the distribution cones 121 are sealed to prevent smoke from passing upward through the distributor 120 and entering the transition layer 102, and the smoke outlet 112 is horizontally opposite to the lower parts of the distribution cones 121 and / or the distribution pipes 122, so that the clean smoke discharged from the top of the adsorption layer 101 can be discharged from the smoke outlet 112.

[0080] This is because the upper end size of the distribution cone 121 is larger than the lower end size, and its cross-sectional area gradually decreases downward in the vertical direction. After the upper part of the distribution cone 121 is sealed and connected, there must be a certain distance between the lower parts of adjacent distribution cones 121. At the same time, the distribution pipe 122 is connected to the lower end outlet size of the distribution cone 121, and there will also be a certain distance between adjacent distribution pipes 122. The adsorbent in the transition layer 102 passes downward through the distribution cone 121 and the distribution pipe 122 connected to the lower end of the distribution cone 121 in turn and is distributed into the adsorption area to form the adsorption layer 101. The top surface of the adsorption layer 101 is flush with the bottom end of the distribution pipe 122. Therefore, the spacing space between the lower parts of the distribution cone 121 and the spacing space between the distribution pipes 122 are located above the adsorption layer 101. The space is horizontally opposite to and connected to the flue gas outlet 112. After the clean flue gas is discharged from the top of the adsorption layer 101, it enters the space above the adsorption layer 101 and is then discharged from the flue gas outlet 112.

[0081] Preferably, if Fig. 9 As shown, the width of the smoke outlet 112 is consistent with the width of the distributor 120 , so that the clean smoke can be discharged from the tower 110 more smoothly, reducing the resistance at the smoke outlet 112 .

[0082] In some embodiments, Figure 4 As shown, the dropper 130 includes a plurality of dropper cones 131 arranged in parallel and at intervals, the lower end of the dropper cone 131 is connected to a dropper pipe 132, the flue gas inlet 111 is opposite to the dropper cone 131 and / or the dropper pipe 132 in the horizontal direction, and the dropper cones 131 are arranged at intervals to allow low-temperature flue gas to pass upward through the dropper 130 and enter the adsorption layer 101. In other words, the dropper cone 131 and the dropper pipe 132 connected to the lower end are arranged at intervals, the flue gas inlet 111 is opposite to and communicates with the interval space in the horizontal direction, and after the low-temperature flue gas enters the space from the flue gas inlet 111, it disperses upward through the gaps between the dropper cones 131 and enters the adsorption layer 101.

[0083] Preferably, if Figure 7 As shown, the width of the flue gas inlet 111 is consistent with the width of the dropper 130 , which reduces the air intake resistance of the low-temperature flue gas and promotes the low-temperature flue gas to enter the tower 110 in a dispersed manner and evenly contact the adsorbent between the adsorption layers 101 .

[0084] In some optional embodiments, the material at the bottom of the adsorption layer 101 is directly dropped through the dropping cone hopper 131 and the dropping tube 132 below the dropping cone hopper 131. It should be noted that in these embodiments, in order to prevent the adsorbent in the adsorption layer 101 from falling from the gap between the dropping cone hoppers 131, the gap size between the dropping cone hoppers 131 should be smaller than the size of the adsorbent particles.

[0085] In other embodiments, Figure 4 As shown, in order to prevent the adsorbent in the adsorption layer 101 from falling from the gaps between the drop cone hoppers 131, the drop feeder 130 also includes a plurality of discharge hoppers 133 arranged in parallel, the upper parts of the plurality of discharge hoppers 133 are sealed and connected and are located above the plurality of drop cone hoppers 131, and the top opening of the drop cone hopper 131 is opposite to the bottom discharge port of at least one discharge hopper 133 and is arranged at intervals to allow low-temperature flue gas to pass through. The adsorbent at the bottom of the adsorption layer 101 first passes through the discharge hopper 133, and falls into the corresponding drop cone hopper 131 from the discharge hopper 133, and the low-temperature flue gas passes through the gaps between the drop cone hoppers 131, and then passes through the discharge hopper 133 from bottom to top and enters the adsorption layer 101.

[0086] exist Figure 1-3 In the embodiment shown, one material dropping cone hopper 131 is opposite to the bottom discharge openings of four material discharging hoppers 133. The bottom discharge openings of the material discharging hoppers 133 are substantially flush with the top openings of the material dropping cone hoppers 131 in the horizontal direction.

[0087] In some embodiments, the adsorption module 100 further includes a discharge device 150 , which is disposed at a discharge port of the discharge device 130 for controlling a discharge rate.

[0088] exist Figure 1-Figure 3 In the illustrated embodiment, the material dropping hopper of the material dropping device 130 is the bottom outlet of the material dropping pipe 132. The material discharge device 150 is disposed at the bottom outlet of the material dropping pipe 132 to control the material dropping rate.

[0089] In some optional embodiments, the unloading device 150 is a valve assembly, which is disposed at the bottom of the material dropping pipe 132, and the material dropping rate can be controlled by controlling the degree of opening of the valve, or the material dropping can be stopped by closing the valve.

[0090] In some alternative embodiments, the unloading device 150 is a raking device, which can control the rate at which the material is dropped by the material dropper 130 by controlling the frequency of raking.

[0091] As an example, Figure 5 As shown, the unloading device 150 includes a material tray 151 and a material rake 152. The material tray 151 is located below the material drop opening of the material dropper 130 and is spaced apart from the material drop opening. The material tray 151 is used to receive the material dropped by the material dropper 130. The material rake 152 is arranged between the material tray 151 and the material dropper 130 and can reciprocate along a preset horizontal direction with an adjustable movement frequency. The material rake 152 is used to rake the adsorbent on the material tray 151 into the unloading hopper 140.

[0092] Alternatively, if Figure 5As shown, a hydraulic rod device 153 can be used to realize the reciprocating movement of the material dropping rake 152 in a preset direction. By controlling the frequency and movement rate of the reciprocating movement of the material dropping rake 152 in the preset direction, the material dropping rate of the material dropping device 130 can be controlled.

[0093] In some embodiments, Figure 1 and Figure 2 The multiple adsorption modules 100 of the low-temperature adsorption unit 300 are stacked in a vertical direction aligned with each other. Specifically, the top and bottom ends of the towers 100 of the multiple adsorption modules 100 are abutted and connected in sequence to form a tower body that can be regarded as an integrated structure in appearance, so that the structure of the low-temperature adsorption unit 300 is stable. Figure 7 and Fig. 9 As shown, a plurality of flue gas inlets 111 and a plurality of flue gas outlets 112 corresponding one-to-one to the plurality of adsorption modules 100 are provided on the side wall of the exterior tower body of the low-temperature adsorption unit 300 .

[0094] Optionally, according to construction requirements, the tower 100 of the adsorption module 100 may be divided into a plurality of tower sections, and the tower sections are spliced ​​together to form the tower 100, thereby reducing the requirements for hoisting and transportation.

[0095] like Figure 2 As shown, the low temperature adsorption unit 300 has four adsorption modules 100. Figure 6 For example, the low-temperature adsorption process of the low-temperature adsorption unit 300 provided in the embodiment of the present invention is as follows:

[0096] The packing system 200 puts the adsorbent into the corresponding distributor 120 through the packing device 210 corresponding to each adsorption module 100, and forms a transition layer 102 above the distributor 120. The distributor 120 evenly distributes the adsorbent in the transition layer 102 to the adsorption zone, and the adsorbent is stacked in the adsorption zone to form an adsorption layer 101. The low-temperature flue gas with a temperature below zero enters from the flue gas inlet 111 of the tower 110 of each adsorption module 100, contacts the adsorption layer 101 in the adsorption zone, and is purified into clean flue gas by contact with the adsorbent. The clean flue gas is discharged from the corresponding flue gas outlet 112 to complete the adsorption. The adsorbent saturated at the bottom of each adsorption layer 101 falls into the corresponding discharge hopper 140 through the dropper 130, and is discharged through the discharge hopper 140. The discharged adsorbent is combined and sent to the subsequent regeneration equipment for regeneration.

[0097] Thus, the saturated adsorbent at the bottom of the adsorption layer 101 is discharged, and new adsorbent is distributed on the top of the adsorption layer 101 through the distributor 120, so that the adsorption layer 101 maintains a certain adsorption capacity, avoiding the adsorbent in the adsorption layer 101 gradually losing its adsorption and purification ability as the adsorption time increases.

[0098] The embodiment of the present invention further provides a low-temperature adsorption system 400. The low-temperature adsorption system 400 includes a plurality of independently working low-temperature adsorption units 300. The plurality of low-temperature adsorption units 300 are arranged in parallel in a horizontal direction.

[0099] In actual adsorption work, a part of the low-temperature adsorption units 300 can be selectively turned on or all of the low-temperature adsorption units 300 can be turned on, so that the low-temperature adsorption system 400 can adaptively handle different flue gas volumes, and a certain low-temperature adsorption unit 300 can be conveniently repaired without stopping the system.

[0100] According to the following Figure 1-Figure 10 The cryogenic adsorption unit 300 and the cryogenic adsorption system 400 provided in a specific embodiment of the present invention are described.

[0101] The cryogenic adsorption system 400 includes four cryogenic adsorption units 300 arranged in parallel in the horizontal direction. Figure 1 and Figure 2 As shown, four cryogenic adsorption units 300 are combined into one body to form a cryogenic adsorption system 400 which is an integral structure in appearance. A plurality of manholes 113 for maintenance are provided on the outer wall of the cryogenic adsorption system 400. The cryogenic adsorption units 300 can work independently.

[0102] The low-temperature adsorption unit 300 includes four adsorption modules 100 stacked in the vertical direction and a filling system 200 including a four-stage filler 210. Each adsorption module 100 is provided with a distributor 120, a dropper 130 and a discharge hopper 140. The four-stage filler 210 is respectively located above the distributors 120 of the four adsorption modules 100. In addition, each stage of the filler 210 has four identical filling modules, and each filling module has four filling pipes 211 whose discharge ports are generally located on the same horizontal plane. In other words, each adsorption module 100 corresponds to 16 filling pipes 211 for filling.

[0103] like Figure 2 As shown, the packing modules of the packing containers 210 except the packing container 210 at the bottom are all provided with a slide pipe 212, and the four packing pipes 211 of each packing module are arranged at intervals around its slide pipe 212. Moreover, in two adjacent packing containers 210 in the vertical direction, the four packing modules of the upper packing container 210 are connected to the four packing modules of the lower packing container 210 through the slide pipe 212 in a one-to-one correspondence.

[0104] like Figure 2As shown, the filling system 200 includes a feed pipe 220, which is used to connect the upper and lower fillers 210. The top end of the feed pipe 220 is connected to the chute 212 of the upper filler 210, and the bottom end of the feed pipe 220 is connected to the distribution chamber 213 of the lower filler 210. Therefore, part of the material in the upper filler 210 is fed into the lower filler 210 through the chute 212 and the feed pipe 220 connected to the chute 212.

[0105] like Figure 2 As shown, except for the bottom discharge hopper 140, each of the other discharge hoppers 140 includes four sub-discharge hoppers 142, and the four sub-discharge hoppers 142 are arranged in two rows. The four sub-discharge hoppers 142 in the two adjacent discharge hoppers 140 are opposite to each other in the vertical direction, and the upper sub-discharge hopper 142 is connected to the corresponding lower sub-discharge hopper 142 through a discharge pipe 160. The discharge hopper 140 at the bottom is a single discharge hopper 140, which is larger in size. The four discharge pipes 160 connected to the bottom of the four adjacent sub-discharge hoppers 142 above the bottom discharge hopper 140 are opposite to the top opening of the bottom single discharge hopper 140, so as to discharge all the materials into the bottom single discharge hopper 140.

[0106] like Figure 2 As shown, the four filling modules of the filler 210 corresponding to a certain layer of adsorption modules 100 correspond one by one to the four sub-discharging hoppers 142 corresponding to the adjacent adsorption modules 100 in the previous layer, the distribution cabin 213 of the filling module is located in the corresponding sub-discharging hopper 142, and the four filling pipes 211 and one chute 212 of the filling module all pass through the wall of the corresponding sub-discharging hopper 142 and extend out of the sub-discharging hopper 142.

[0107] Optionally, the width of the low temperature adsorption unit 300 is 5-8 meters. For example, the width of the low temperature adsorption unit 300 is 6 meters.

[0108] Optionally, the height of the adsorption module 100 is 3-5 meters. For example, the height of the adsorption module 100 is 4 meters.

[0109] Optionally, the height of the adsorption bed 101 in the adsorption module 100 is 1-3 meters, for example, the height of the adsorption bed 101 in the adsorption module 100 is 2 meters.

[0110] Preferably, the temperature of the low-temperature flue gas input to the adsorption module 100 is between -20°C and -15°C.

[0111] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0112] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0113] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0114] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0115] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0116] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A blanking system, characterized in that: include: A multi-stage discharge hopper (140), wherein the discharge hopper (140) has a top opening and a bottom discharge port, and the multi-stage discharge hoppers (140) are arranged at intervals in the vertical direction, and the discharge hopper (140) is used to receive the discharge of the material layer located above it; At least one discharge pipe (160) is used to connect the upper and lower discharge hoppers (140), the top end of the discharge pipe (160) is connected to the bottom discharge port of the upper discharge hopper (140), and the discharge pipe (160) extends downward and its bottom end is opposite to the top opening of the lower discharge hopper (140).

2. The blanking system according to claim 1, characterized in that: The down pipe (160) is used to connect two adjacent upper and lower discharge hoppers (140), and the upper discharge hopper (140) is opposite to the top opening of the adjacent lower discharge hopper (140) through the down pipe (160).

3. The blanking system according to claim 1, characterized in that: Each of the remaining discharge hoppers (140) except the lowest discharge hopper (140) includes a plurality of sub-discharge hoppers arranged in parallel, and the bottom discharge ports of the plurality of sub-discharge hoppers are connected to the plurality of discharge pipes (160) in a one-to-one correspondence. The lowest discharge hopper (140) corresponds to the adjacent plurality of discharge pipes (160) located above it, so that the discharge of the plurality of discharge pipes (160) can be discharged through the lowest discharge hopper (140).

4. The blanking system according to any one of claims 1 to 3, characterized in that: The discharge hopper (140) is provided with a plurality of ribs (141) extending in a vertical direction, the bottom ends of the ribs (141) are connected to the inner wall surface of the discharge hopper (140), and the angle between the ribs (141) and the inner wall surface of the discharge hopper (140) is 30°-60°.

5. The blanking system according to claim 4, characterized in that: The rib plate (141) is annular, and a plurality of the rib plates (141) are arranged in sequence in the vertical direction along the inner wall surface of the discharge hopper (140).

6. The blanking system according to claim 4 or 5, characterized in that: The plurality of ribs (141) are arranged at intervals in the vertical direction. In the longitudinal section of the discharge hopper (140), in two adjacent ribs (141), the angle between the line connecting the top peripheral edge of the rib (141) located at the bottom and the bottom peripheral edge of the rib (141) located at the top and the horizontal plane is 15°-30°.

7. A low temperature adsorption unit, characterized in that: include: A plurality of adsorption modules (100), wherein the adsorption modules (100) are stacked in a vertical direction, an adsorption area for accommodating an adsorbent is provided in the adsorption module (100), and the adsorption module (100) is provided with a flue gas inlet (111) for inputting low-temperature flue gas with a temperature below zero and a flue gas outlet (112) for outputting clean flue gas adsorbed by the adsorbent; A material dropping system, wherein the material dropping system is a material dropping system according to any one of claims 1 to 6, wherein the plurality of discharge hoppers (140) of the material dropping system correspond one-to-one to the plurality of adsorption modules (100), and the discharge hopper (140) is used to discharge the adsorbent in the adsorption area of ​​the corresponding adsorption module (100).

8. The low temperature adsorption unit according to claim 7, characterized in that: It also includes a packing system (200), wherein the packing system (200) includes a multi-stage packing device (210), wherein the multi-stage packing device (210) corresponds one-to-one to the plurality of adsorption modules (100), and the plurality of packing devices (210) of the packing system corresponds one-to-one to the plurality of adsorption modules (100), and the packing device (210) is used to fill the adsorption area of ​​the corresponding adsorption module (100) with an adsorbent to form an adsorption layer.

9. The low temperature adsorption unit according to claim 8, characterized in that: The filler (210) includes a filling pipe (211) for feeding material to the corresponding adsorption module (100), and at least one of the remaining fillers (210) except the lowest filler (210) includes a slide pipe (212) for feeding material to the filler (210) below the at least one filler (210). In two adjacent levels of fillers (210), the slide pipe (212) of the upper-level filler (210) is used to feed material to the lower-level filler (210), so that the adsorbent is fed from the top-most filler (210) into the multiple levels of fillers (210) from top to bottom in sequence.

10. The low temperature adsorption unit according to any one of claims 7 to 9, characterized in that: The adsorption module (100) comprises a tower (110) and a distributor (120) and a dropper (130) arranged in sequence from top to bottom in the tower (110); the adsorption zone is formed between the distributor (120) and the dropper (130); the filler (210) feeds material above the distributor (120); the distributor (120) is used to evenly distribute the adsorbent in the adsorption zone; and the dropper (130) is used to evenly discharge the adsorbent at the bottom of the adsorption zone into the discharge hopper (140).

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