Monomer continuous fixable exhaust gas adsorption desorption integrated device

Abstract

The utility model belongs to waste gas treatment technical field, concretely relates to single body can continuous can fix waste gas adsorption analysis integrated device. Including single, series or parallel connection's waste gas adsorption analysis integrated device, the device includes the outer layer casing, the casing is separated out multistage reaction unit through the baffle of horizontal arrangement, the reaction unit one side of casing inner bottom is equipped with the entrance, the other side is equipped with the flue connection last reaction unit, is connected up and down through the flue of S shape setting reaction unit both sides in the casing middle part, is the other side for the export of the flue of reaction unit in the casing top, one or more passages are equipped with from top to bottom in the casing interior, the passage is vertically through the baffle, the both ends of passage are sealedly connected with the lateral wall of casing, the bottom of passage is equipped with the discharge gate. The device adopts single body design, can be used alone, series or parallel, series is applicable to high concentration waste gas, parallel is applicable to atmospheric volume processing, has promoted the application range.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to an integrated device for continuous and fixed waste gas adsorption and desorption. Background Technology

[0002] The main components of organic waste gas include hydrocarbons, halogenated hydrocarbons, oxygenated hydrocarbons, and nitrogenous hydrocarbons, including benzene compounds, organochlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids, and petroleum hydrocarbons. VOCs are not only important precursor pollutants of organic components in atmospheric PM2.5, but also important precursor pollutants of O3. Since an increase in O3 concentration means an increase in atmospheric oxidation capacity, it will exacerbate the formation of secondary pollutants. Implementing a VOCs control campaign can effectively improve air quality, address shortcomings in air pollution control, and has significant environmental, economic, and social benefits. However, existing waste gas treatment equipment has the following shortcomings: First, traditional adsorption devices are often bulky and have a narrow processing capacity, making it difficult to adapt to the needs of projects of different scales; second, the devices usually cannot be flexibly connected in series or parallel, resulting in low efficiency when treating high-concentration or large-volume waste gases; third, the adsorption materials are inconvenient to load and unload, easily damaged by friction and impact, and cannot achieve in-situ desorption and online regeneration, increasing operating costs and downtime. In addition, existing equipment is mostly limited to a single fixed or continuous mode, and cannot flexibly switch between adsorption, desorption and cooling functions.

[0003] Therefore, it is of great significance to develop devices suitable for the adsorption treatment of organic waste gas and even for solvent recovery through desorption. Utility Model Content

[0004] To address the aforementioned problems, this invention develops an integrated single-unit, continuous, and stationary waste gas adsorption and desorption device. This device employs a multi-stage reaction unit design, using channels filled with adsorbent material to achieve a bottom-up counter-current flow of waste gas, thus improving treatment efficiency. The device is small in size and can be used individually, in series, or in parallel to adapt to different gas volumes and concentrations. It also supports in-situ regeneration and online desorption of the adsorbent material, preventing damage from friction and impact. The adsorbent material filling channel facilitates top-down filling and unloading. This device can be used as a stationary or continuous adsorption unit, effectively solving the problems of poor device flexibility, low treatment efficiency, and inconvenient adsorbent material regeneration in existing technologies.

[0005] The present invention relates to a single, continuous, and fixed integrated waste gas adsorption and desorption device, comprising individual, series, or parallel integrated waste gas adsorption and desorption devices. The integrated waste gas adsorption and desorption device includes an outer shell, and the shell is divided into multiple reaction units by horizontally arranged partitions. The number of stages is determined according to factors such as gas concentration, required concentration indicators, and site conditions. The reaction unit at the bottom of the shell has an inlet on one side and a flue on the other side connecting to the next stage reaction unit. The reaction unit in the middle of the shell is connected vertically on both sides by S-shaped flues. The reaction unit at the top of the shell has an outlet on the other side of its flue. One or more channels run through the shell from top to bottom, passing vertically through the partitions. The two ends of the channels are sealed to the side walls of the shell. The inlet and flue of the reaction unit at the bottom, the flues at both ends of the same stage in the middle, and the flue and outlet at the top are all located on both sides of the channels. The bottom of the channels has a discharge port.

[0006] The aforementioned integrated waste gas adsorption and desorption device, which can be continuous or stationary, is designed as a single unit, with each unit handling a relatively small gas volume. For projects with large gas volumes, multiple units can be connected in parallel; for projects with high gas concentrations, multiple units can be connected in series. Each unit is multi-stage, with the number of stages depending on the concentration and equipment cost. The device is cylindrical or cuboid in shape; if the pressure is too high, a cylindrical reactor is recommended. The channels are made of single or multiple layers of sintered mesh, running from top to bottom through the device body, facilitating the loading and unloading of adsorption materials or catalysts. The overall adsorption device is multi-stage, with the adsorption material or catalyst moving from top to bottom and the waste gas moving from bottom to top, ensuring a thorough adsorption process.

[0007] During operation, multiple adsorption devices can be set up, each responsible for adsorption, desorption, and cooling respectively. In this way, the device can perform both adsorption and in-situ desorption.

[0008] Furthermore, the partition is a metal plate or a corrosion-resistant resin plate, which can effectively isolate gas leakage between reaction unit stages.

[0009] The inlet, outlet, flue, and side of the shell are connected in a gradually widening manner.

[0010] A dust filter plate is provided in front of the outlet, and a dust discharge port is opened at the lower end of the side wall of the housing in front of the dust filter plate.

[0011] The ash discharge port is a long strip that is opened on the inclined side wall of the shell. The ash discharge port is connected to the ash discharge pipe below, and the ash discharge pipe is equipped with a valve.

[0012] Before the gas is discharged from the outlet, it passes through a dust filter plate, where the dust is blocked. When it is necessary to discharge the dust, the valve on the dust discharge pipe is opened to discharge the dust.

[0013] A gas distribution plate is provided on the airflow path after the inlet and fixed on the inner wall of the housing. The gas distribution plate is arranged radially toward the channel.

[0014] The passage is equipped with baffles on both sides, located above and below the partition.

[0015] The channel is filled with adsorbent material or catalyst.

[0016] The baffle design effectively reduces the amount of gas passing directly upwards through the channel instead of horizontally. Even if a small amount of gas passes through the baffle, it will not overflow directly above the baffle. Instead, the gas will pass through the adsorbent material or catalyst located in the channel at the height of the upper and lower baffles, undergo a full reaction, and then overflow from the upper edge of the baffle, ensuring high-quality gas treatment.

[0017] The shell can be a cylinder or a cuboid.

[0018] The beneficial effects of this utility model are as follows: (1) The device described in this utility model adopts a single-unit design and can be used alone, in series or in parallel to adapt to different waste gas volume and concentration requirements. Series connection is suitable for high-concentration waste gas, while parallel connection is suitable for large-volume waste gas treatment, which greatly expands the application range.

[0019] (2) This utility model, through multi-stage reaction units and channel structure, allows waste gas to flow counter-currently from bottom to top, ensuring full contact with the adsorption material or catalyst, thereby improving the adsorption and desorption efficiency of pollutants. Baffles and gas distribution plates ensure horizontal gas flow, preventing short circuits and improving treatment quality.

[0020] (3) The device described in this utility model can serve as both an adsorption unit and an in-situ desorption unit, supporting online regeneration of the adsorption material and reducing downtime and replacement costs. Parallel operation can achieve a continuous adsorption-desorption-cooling cycle, improving operational continuity.

[0021] (4) The device described in this utility model has a small volume, which is convenient for installation and transportation. It can be equipped with a cylindrical or cuboid shell as needed, which reduces manufacturing costs. The multi-stage design optimizes the reaction path, reduces the size and cost of the equipment, and is easy to achieve desorption due to its small size, whether it is depressurization desorption or temperature desorption. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this invention. In the drawings: Figure 1 This is a front view of the integrated waste gas adsorption and desorption device with single-unit continuous and fixed configuration as described in Embodiment 1 of this utility model; Figure 2This is a top view of the integrated waste gas adsorption and desorption device with single-unit continuous and fixed configuration as described in Embodiment 1 of this utility model; Figure 3 This is a front view of the integrated waste gas adsorption and desorption device with single-unit continuous and fixed configuration as described in Embodiment 2 of this utility model; Figure 4 This is a top view of the integrated waste gas adsorption and desorption device with single-unit continuous and fixed configuration as described in Embodiment 2 of this utility model; Figure 5 This is a front view of the integrated waste gas adsorption and desorption device with single-unit continuous and fixed configuration as described in Embodiment 3 of this utility model; In the diagram: 1. Inlet; 2. Outlet; 3. Channel; 4. Flue; 5. Baffle; 6. Gas distribution plate; 7. Baffle; 8. Ash discharge port; 9. Material discharge port. Detailed Implementation

[0023] The present invention will be explained in detail below with reference to the embodiments.

[0024] Example 1 The aforementioned integrated device for continuous and fixed waste gas adsorption and desorption, such as... Figure 1 and Figure 2 As shown, it includes a separate integrated waste gas adsorption and desorption device. The integrated waste gas adsorption and desorption device includes an outer shell. Inside the shell, a horizontally arranged partition 5 separates a secondary reaction unit. The reaction unit at the bottom of the shell has an inlet 1 on one side and a flue 4 on the other side connecting to the previous reaction unit. The other side of the flue 4 of the reaction unit at the top of the shell is an outlet 2. A channel 3 runs through the shell from top to bottom. The channel 3 passes vertically through the partition 5. The two ends of the channel 3 are sealed to the side walls of the shell. The inlet 1 and flue 4 of the reaction unit at the bottom, and the flue 4 and outlet 2 at the top are located on both sides of the channel 3. The bottom of the channel 3 has a discharge port 9.

[0025] Furthermore, the partition 5 is made of corrosion-resistant resin, which can effectively isolate interstage gas transmission between reaction units.

[0026] Channel 3 is formed by sintering a single-layer sintered mesh.

[0027] The inlet 1, outlet 2, and flue 4 are connected to the side of the shell in a gradually expanding manner.

[0028] A dust filter plate is provided in front of the outlet 2, and a dust discharge port 8 is opened at the lower end of the side wall of the housing in front of the dust filter plate.

[0029] The ash discharge port 8 is a long strip that is opened on the inclined side wall of the shell. The ash discharge port 8 is connected to the ash discharge pipe below, and the ash discharge pipe is equipped with a valve.

[0030] Before the gas is discharged from outlet 2, it passes through a dust filter plate, where the dust is blocked. When it is necessary to discharge the dust, the valve on the dust discharge pipe is opened to discharge the dust.

[0031] A gas distribution plate 6 is provided on the airflow path after the inlet 1 and fixed on the inner wall of the shell. The gas distribution plate 6 is arranged radially toward the channel 3.

[0032] The channel 3 is provided with baffles 7 on both sides, above and below the partition 5.

[0033] The channel 3 is filled with activated carbon.

[0034] The baffle 7 effectively reduces the direct upward flow of gas through the partition 5 from the channel 3, rather than horizontally through the channel 3. Even if a small amount of gas passes through the partition 5 from the channel 3, it will not overflow directly above the partition 5. Instead, the gas will pass through the adsorbent material or catalyst in the channel 3 at the height of the baffle 7 above and below the partition 5, undergo a full reaction, and then overflow from the upper edge of the baffle 7, ensuring high-quality gas treatment.

[0035] The shell is a cuboid.

[0036] Working Principle: Waste gas enters the bottom reaction unit through inlet 1, is evenly distributed by gas distribution plate 6, and then flows horizontally to channel 3. In channel 3, the waste gas passes through activated carbon, pollutants are adsorbed, and the purified gas enters the next-stage reaction unit through flue 4. In the next-stage reaction unit, the gas again passes horizontally through channel 3 for secondary adsorption, and finally exits from outlet 2. Activated carbon is filled in channel 3, which can be loaded from the top and discharged from discharge port 9, enabling continuous or fixed operation. Baffle 7 ensures that the gas passes horizontally through the activated carbon in channel 3, preventing short circuits. During operation, dust is periodically discharged through ash discharge port 8. This device can function as an adsorption unit or undergo in-situ desorption and regeneration by switching airflow.

[0037] Example 2 The aforementioned integrated device for continuous and fixed waste gas adsorption and desorption, such as... Figure 3 and Figure 4As shown, it includes a separate integrated waste gas adsorption and desorption device. The integrated waste gas adsorption and desorption device includes an outer shell. Inside the shell, three-stage reaction units are separated by two horizontally arranged partitions 5. The reaction unit at the bottom of the shell has an inlet 1 on one side and a flue 4 on the other side connecting to the previous stage reaction unit. The reaction unit in the middle of the shell is connected vertically on both sides by S-shaped flues 4. The reaction unit at the top of the shell has an outlet 2 on the other side of the flue 4. Two channels 3 run through the shell from top to bottom. The channels 3 pass vertically through the partitions 5. The two ends of the channels 3 are sealed to the side walls of the shell. The inlet and flue 4 of the reaction unit at the bottom, the flues 4 at both ends of the same stage in the middle, and the flue 4 and outlet 2 at the top are all located on both sides of the channels 3. The bottom of the channels 3 has a discharge port 9.

[0038] Furthermore, the partition 5 is made of corrosion-resistant resin, which can effectively isolate interstage gas transmission between reaction units.

[0039] Channel 3 is formed by sintering a single-layer sintered mesh.

[0040] The inlet 1, outlet 2, and flue 4 are connected to the side of the shell in a gradually expanding manner.

[0041] A dust filter plate is provided in front of the outlet 2, and a dust discharge port 8 is opened at the lower end of the side wall of the housing in front of the dust filter plate.

[0042] The ash discharge port 8 is a long strip that is opened on the inclined side wall of the shell. The ash discharge port 8 is connected to the ash discharge pipe below, and the ash discharge pipe is equipped with a valve.

[0043] Before the gas is discharged from outlet 2, it passes through a dust filter plate, where the dust is blocked. When it is necessary to discharge the dust, the valve on the dust discharge pipe is opened to discharge the dust.

[0044] A gas distribution plate 6 is provided on the airflow path after the inlet 1 and fixed on the inner wall of the shell. The gas distribution plate 6 is arranged radially toward the channel 3.

[0045] The channel 3 is provided with baffles 7 on both sides, above and below the partition 5.

[0046] The channel 3 is filled with zinc oxide and iron oxide respectively.

[0047] The baffle 7 effectively reduces the direct upward flow of gas through the partition 5 from the channel 3, rather than horizontally through the channel 3. Even if a small amount of gas passes through the partition 5 from the channel 3, it will not overflow directly above the partition 5. Instead, the gas will pass through the adsorbent material or catalyst in the channel 3 at the height of the baffle 7 above and below the partition 5, undergo a full reaction, and then overflow from the upper edge of the baffle 7, ensuring high-quality gas treatment.

[0048] The shell is a cuboid.

[0049] Working Principle: Waste gas enters the bottom reaction unit through inlet 1, is distributed by gas distribution plate 6, and then flows horizontally into two channels 3. Within channels 3, the waste gas comes into contact with zinc oxide and iron oxide, removing pollutants. The gas then sequentially enters the middle and top reaction units through S-shaped flues 4. In each reaction unit, the gas flows horizontally through channels 3 for three stages of treatment, finally exiting from outlet 2. Zinc oxide and iron oxide within channels 3 can be loaded from the top and discharged from the discharge port 9, allowing for continuous replacement. Baffle 7 prevents direct upward short-circuiting of the gas, ensuring sufficient reaction with the catalyst. Ash discharge port 8 is used to remove accumulated ash. This device can be used for both adsorption and desorption, achieving in-situ regeneration by adjusting operating conditions.

[0050] Example 3 like Figure 5 As shown, eight devices described in Example 2 are connected in parallel, with six devices for adsorption, one device for desorption, and one device for cooling. The inlet 1 and outlet 2 of each device are connected in parallel through a piping system to achieve airflow distribution. The channel 3 is filled with zinc oxide and iron oxide, and the discharge port 9 is used for loading and unloading materials. Components such as the gas distribution plate 6, baffle 7, and ash discharge port 8 are configured as in Example 2.

[0051] Working Principle: Waste gas is distributed to the inlet 1 of six adsorption units through a main pipeline. Each unit undergoes a three-stage reaction process: gas enters through inlet 1 and flows horizontally through zinc oxide and iron oxide in channel 3, removing pollutants. The purified gas is then discharged from outlet 2. Simultaneously, the desorption unit uses an external heat source or pressure reduction system to desorb pollutants from the adsorption material in channel 3, achieving regeneration. The cooling unit lowers the temperature of the desorbed material using airflow or a cooling medium, preparing it for reuse. The system automatically switches airflow via valves, ensuring continuous adsorption, desorption, and cooling processes. The parallel design ensures efficient operation under large gas volumes, and a single unit failure does not affect the overall system. Baffles 7 and gas distribution plates 6 in channel 3 ensure uniform gas distribution and sufficient reaction, while ash discharge ports 8 are periodically cleaned. This mode achieves online adsorption and desorption, improving equipment utilization and processing efficiency.

Claims

1. A monolithic continuously fixable exhaust gas adsorption desorption integrated device, characterized by, The device includes an integrated waste gas adsorption and desorption unit that is connected individually, in series, or in parallel. The integrated waste gas adsorption and desorption unit includes an outer shell. The shell is divided into multiple reaction units by a horizontally arranged partition (5). The reaction unit at the bottom of the shell has an inlet (1) on one side and a flue (4) on the other side to connect to the next reaction unit. The reaction unit in the middle of the shell is connected vertically by an S-shaped flue (4) on both sides. The reaction unit flue (4) at the top of the shell has an outlet (2) on the other side. One or more channels (3) are arranged from top to bottom inside the shell. The channels (3) pass vertically through the partition (5). The two ends of the channels (3) are sealed to the side wall of the shell. The inlet (1) and flue (4) of the reaction unit at the bottom, the flue (4) at both ends of the same level in the middle, and the flue (4) and outlet (2) at the top are all located on both sides of the channels (3). The bottom of the channels (3) has a discharge port (9).

2. The monolithic continuously connectable adsorptive exhaust gas purification integrated device according to claim 1, characterized in that, The inlet (1), outlet (2), and flue (4) are connected to the side of the shell in a gradually expanding manner.

3. The integrated apparatus for adsorption and desorption of exhaust gas according to claim 2, wherein A dust filter plate is provided in front of the outlet (2), and a dust discharge port (8) is opened at the lower end of the side wall of the housing in front of the dust filter plate.

4. The integrated apparatus for adsorption and desorption of exhaust gas according to claim 3, wherein The ash discharge port (8) is a long strip opened on the inclined side wall of the shell. The ash discharge port (8) is connected to the ash discharge pipe below, and the ash discharge pipe is equipped with a valve.

5. The integrated apparatus for adsorption and desorption of exhaust gas according to claim 1, wherein A gas distribution plate (6) is provided on the airflow path after the inlet (1) and fixed on the inner wall of the shell. The gas distribution plate (6) is arranged radially toward the channel (3).

6. The integrated apparatus for adsorption and desorption of exhaust gas according to claim 1, wherein The channel (3) is provided with baffles (7) on both sides above and below the partition (5).

7. The integrated apparatus for adsorption and desorption of exhaust gas according to claim 1, wherein The channel (3) is filled with adsorbent material or catalyst.

Images