Continuous adsorption treatment mechanism for silicon-containing organic waste gas

Abstract

The utility model discloses a continuous adsorption treatment mechanism for silicon-containing organic waste gas, which comprises a treatment box, two ends of the treatment box are fixedly communicated with a gas inlet and a gas outlet, one side of the treatment box is fixedly provided with a box door, and the inside of the treatment box is provided with a gas inlet and a gas outlet along the direction from the gas inlet to the gas outlet. A filter screen, an activated carbon adsorption assembly, a molecular sieve adsorption assembly and a UV photolysis reaction assembly are arranged in sequence. According to the utility model, the renewable adsorbent activated carbon is adopted, the heating plate is used for heating, the activated carbon with saturated adsorption is placed under a high-temperature condition, so that the organic matters adsorbed on the surface of the activated carbon are decomposed or volatilized, similar to the activated carbon, and the molecular sieve with saturated adsorption is heated, so that the organic matters adsorbed in the pore channels of the molecular sieve are volatilized; therefore, recycling of the activated carbon and the molecular sieve is realized, the use frequency and the service life of the adsorbent are improved, economic benefits are improved, and sustainability is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a continuous adsorption treatment mechanism for silicon-containing organic waste gas. Background Art

[0002] Waste gas treatment involves the purification of harmful gases generated during industrial production, with the goal of reducing pollutant emissions and meeting environmental protection requirements. There are various waste gas treatment methods, and the choice depends on the characteristics of the waste gas (such as composition and concentration), the treatment volume, and local environmental regulations.

[0003] Silicon-containing organic waste gas generally refers to a gas mixture containing silicon-based organic compounds. This type of waste gas can be treated by various methods, including adsorption. For example, in the invention patent application number 202311378102.2, "A System and Method for Treating Silicon-Containing Organic Waste Gas," "The treated waste gas enters the first adsorption component of the adsorption device, which adsorbs the organic silicon in the waste gas, achieving an organic silicon removal rate of >85%. When the VOCs concentration detector detects that the VOCs concentration reaches a preset value, the control cabinet 1 controls the first air inlet solenoid valve to close and the second air inlet solenoid valve to open, allowing the waste gas to enter the second adsorption component of the adsorption device to adsorb the organic silicon. The discharge solenoid valve of the first adsorption component is opened, and the adsorption filler of the first adsorption component is removed. The adsorption filler is not regenerated online." However, this type of adsorption filler is non-regenerative, which increases the frequency and cost of adsorbent replacement, making the entire waste gas treatment system less economical and sustainable. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems mentioned in the above background technology and to propose a continuous adsorption treatment mechanism for silicon-containing organic waste gas.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A continuous adsorption treatment mechanism for silicon-containing organic waste gas comprises a treatment box, with an air inlet and an air outlet fixedly connected at both ends of the treatment box, a box door fixed on one side of the treatment box, and a filter screen, an activated carbon adsorption component, a molecular sieve adsorption component and a UV photolysis reaction component arranged in sequence in the direction from the air inlet to the air outlet in the treatment box;

[0007] The activated carbon adsorption component includes a filling plate filled with honeycomb activated carbon;

[0008] The molecular sieve adsorption assembly includes a filling plate filled with molecular sieve;

[0009] The filling plate is penetrated by the inverted trapezoidal body in the horizontal direction, and heating plates are fixedly connected in the through grooves on both sides of the filling plate. A plurality of ventilation grooves are opened on the heating plate. The top and bottom of the filling plate are respectively connected to external threaded pipes passing through the processing box through threads, and the external threaded pipes are connected to the sealing covers by spiral screwing.

[0010] The UV photolysis assembly includes multiple groups of UV lamp tubes fixedly connected in the processing box.

[0011] As a further description of the above technical solution:

[0012] The UV photolysis reaction assembly also includes a filling tube. Filling tubes are arranged on both sides of each group of UV lamps. The filling tubes are filled with catalysts that promote the decomposition of organic matter. Both ends of the filling tubes are fixed through the processing box, and sealing plugs are interference fit at both ends of the filling tubes. A number of through grooves are distributed in a ring array on the filling tubes.

[0013] As a further description of the above technical solution:

[0014] It also includes a driving motor, a screw, a brush plate and a cleaning sponge. The brush plate is sleeved on the outside of the UV lamp tube, and the inner wall of the sleeve hole is bonded with a cleaning sponge that contacts the outer wall of the UV lamp tube. A screw threadedly connected to the brush plate is rotatably installed in the processing box. The driving motor is fixedly installed at the bottom of the processing box, and the output shaft of the driving motor is fixedly connected to the bottom end of the screw.

[0015] As a further description of the above technical solution:

[0016] A guide rod passing through the brush plate is fixedly installed in the processing box.

[0017] As a further description of the above technical solution:

[0018] It also includes a VOCs concentration detector, which is installed on the processing box near the air outlet. An electric plug-in valve is installed on the air outlet, and the opening and closing of the electric plug-in valve is controlled by the VOCs concentration value detected by the VOCs concentration detector.

[0019] As a further description of the above technical solution:

[0020] It also includes a reflux pipe, an air pump and a solenoid valve. The reflux pipe is connected to the treatment box. The connection point at one end of the reflux pipe is located between the filter and the activated carbon adsorption component, and the connection point at the other end of the reflux pipe is located between the UV photolysis reaction component and the air outlet. The air pump and the solenoid valve are installed on the reflux pipe, and the opening and closing of the solenoid valve are controlled by the VOCs concentration value detected by the VOCs concentration detector.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the utility model, a renewable adsorbent activated carbon is used, and the adsorption saturated activated carbon is placed under high temperature conditions by heating through a heating plate, so that the organic matter adsorbed on its surface is decomposed or volatilized. Similar to activated carbon, the adsorption saturated molecular sieve is heated to volatilize the organic matter adsorbed in its pores, thereby realizing the recycling of activated carbon and molecular sieve, increasing the number of uses and service life of the adsorbent, improving economic benefits, and achieving sustainability.

[0023] 2. In the utility model, the screw is driven by a driving motor to rotate, and according to the principle of screw transmission, the brush plate is driven to rise, and the surface of the UV lamp is cleaned by a cleaning sponge to ensure its long-term stable operation.

[0024] 3. In the present invention, the controller receives the concentration value signal and controls the solenoid valve and the electric gate valve. When the VOCs concentration value exceeds the emission limit, the electric gate valve is controlled to open for exhaust. When the VOCs concentration value does not exceed the emission limit, the solenoid valve and the vacuum pump are controlled to open to perform secondary adsorption and UV photolysis treatment on the exhaust gas until the VOCs concentration value exceeds the emission limit, thereby ensuring that the exhaust gas meets the emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure shows the internal structure of a continuous adsorption treatment mechanism for silicon-containing organic waste gas provided in accordance with an embodiment of the present utility model;

[0026] Figure 2 Shows a schematic structural diagram of an activated carbon adsorption assembly provided according to an embodiment of the present utility model;

[0027] Figure 3 A schematic diagram showing the connection between the brush plate and the UV lamp provided in an embodiment of the present utility model is shown;

[0028] Figure 4 A schematic structural diagram of a filling tube according to an embodiment of the present invention is shown;

[0029] Figure 5 The figure shows a three-dimensional structural diagram of a continuous adsorption treatment mechanism for silicon-containing organic waste gas provided according to an embodiment of the present utility model.

[0030] Legend:

[0031] 1. Processing box; 2. Air inlet; 3. Air outlet; 4. Reflux pipe; 5. Vacuum pump; 6. Solenoid valve; 7. VOCs concentration detector; 8. Sealing cover; 9. Sealing plug; 10. Filling tube; 1001. Through groove; 11. Plug valve; 12. Filter; 13. Filling plate; 14. Heating plate; 1401. Vent groove; 15. Externally threaded pipe; 16. Cleaning sponge; 17. UV lamp; 18. Drive motor; 19. Screw; 20. Guide rod; 21. Brush plate; 22. Box door. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0033] See also Figure 1-5 The utility model provides a technical solution: a continuous adsorption treatment mechanism for silicon-containing organic waste gas, comprising a treatment box 1, with an air inlet 2 and an air outlet 3 fixedly connected at both ends of the treatment box 1, a box door 22 fixed on one side of the treatment box 1, and a filter screen 12, an activated carbon adsorption component, a molecular sieve adsorption component and a UV photolysis reaction component arranged in sequence in the direction from the air inlet 2 to the air outlet 3 in the treatment box 1. Among them, the filter 12 is used to remove particulate matter and large particle impurities in the exhaust gas to prevent clogging of subsequent equipment; the activated carbon adsorption component includes a filling plate 13, which is filled with honeycomb activated carbon. This type of activated carbon has a large specific surface area and a good pore structure and can effectively adsorb organic matter in the exhaust gas; the molecular sieve adsorption component includes a filling plate 13, which is filled with molecular sieve. Molecular sieve is a crystalline solid material with uniform pore size, which can selectively adsorb certain molecules according to the pore size; for certain specific pollutants, such as nitrogen- or sulfur-containing organosilicon compounds, organosilicon polymers, etc., UV photolysis technology can also be used for deep purification, using ultraviolet (UV) radiation combined with the action of a catalyst (such as TiO2) to decompose the organosilicon compounds into simpler harmless substances.

[0034] Specifically, such as Figure 1 and Figure 2As shown, the filling plate 13 is horizontally penetrated by an inverted trapezoidal body. A heating plate 14 is fixedly connected to the through-grooves on both sides of the filling plate 13. The heating plate 14 is provided with a plurality of ventilation grooves 1401. The top and bottom of the filling plate 13 are respectively connected by threads to externally threaded pipes 15 that pass through the treatment box 1. The externally threaded pipes 15 are screwed to a sealing cover 8. First, the externally threaded pipes 15 communicate with the interior of the filling plate 13, making it convenient to replace the filling material without removing the box door. The ventilation grooves 1401 ensure that the waste gas can be adsorbed and circulated by the activated carbon and molecular sieve. Second, activated carbon is used as a regenerable adsorbent. The heating plate 14 heats the saturated activated carbon, subjecting it to high temperatures (typically between 150°C and 600°C) to decompose or volatilize the organic matter adsorbed on its surface. Similar to activated carbon, the saturated molecular sieve is heated to volatilize the organic matter adsorbed in its pores. This allows for the recycling of the activated carbon and molecular sieve, increases the number of uses and service life of the adsorbent, improves economic efficiency, and achieves sustainability.

[0035] Specifically, such as Figure 1 and Figure 3 As shown, the UV photolysis assembly includes multiple groups of UV lamps 17 and filling tubes 10 fixedly connected within a treatment box 1. Filling tubes 10 are located on both sides of each group of UV lamps 17. Filling tubes 10 are filled with a catalyst that promotes the decomposition of organic matter, such as TiO2. Both ends of the filling tubes 10 are fixedly inserted through the treatment box 1, and sealing plugs 9 are interference-fitted at both ends. Filling tubes 10 are provided with a plurality of through-grooves 1001 arranged in a circular array. UV photolysis technology utilizes ultraviolet energy to break down the chemical bonds of organic compounds, breaking them down into smaller molecules or atoms, ultimately producing carbon dioxide (CO2), water (H2O), and other harmless substances. When the electric gate valve 11 is closed, the exhaust gas is in full contact with the UV lamps 17, providing sufficient reaction time to ensure that the organic matter in the exhaust gas can fully absorb the ultraviolet light and undergo a photolysis reaction. Furthermore, a catalyst filling tube 10 is located near the UV lamps 17 to add a catalyst, such as TiO2, to accelerate the decomposition process of the organic matter.

[0036] Specifically, such as Figure 1 and Figure 3As shown, it also includes a drive motor 18, a screw 19, a brush plate 21 and a cleaning sponge 16. The brush plate 21 is sleeved on the outside of the UV lamp tube 17, and the inner wall of the sleeve hole is adhered with the cleaning sponge 16 that contacts the outer wall of the UV lamp tube 17. The cleaning sponge 16 is adsorbed with a moist detergent. The screw 19 threadedly connected to the brush plate 21 is rotatably installed in the processing box 1. The drive motor 18 is fixedly installed at the bottom of the processing box 1, and the output shaft of the drive motor 18 is fixedly connected to the bottom end of the screw 19. A guide rod 20 passing through the brush plate 21 is fixedly installed in the processing box 1. The screw 19 is driven to rotate by the drive motor 18. According to the principle of screw transmission, the brush plate 21 is driven to rise, and the surface of the UV lamp tube 17 is cleaned through the cleaning sponge 16 to ensure its long-term stable operation.

[0037] Specifically, such as Figure 1 As shown, it also includes a reflux pipe 4, an air pump 5, a solenoid valve 6 and a VOCs concentration detector 7. The VOCs concentration detector 7 is installed on the treatment box 1 near the air outlet 3. The air outlet 3 is equipped with an electric plug-in valve 11. The reflux pipe 4 is connected to the treatment box 1. The connection point of one end of the reflux pipe 4 is located between the filter screen 12 and the activated carbon adsorption component, and the connection point of the other end of the reflux pipe 4 is located between the UV photolysis reaction component and the air outlet 3. The air pump 5 and the solenoid valve 6 are installed on the reflux pipe 4. The opening and closing of the air pump 5 and the solenoid valve 6 are controlled by the detection of the VOCs concentration detector 7. The VOCs concentration value measured is the VOCs concentration value detected by the VOCs concentration detector 7. The opening and closing of the electric gate valve 11 is controlled by the VOCs concentration value detected by the VOCs concentration detector 7. The concentration value signal is received by the controller and then the solenoid valve 6 and the electric gate valve 11 are controlled. When the VOCs concentration value exceeds the emission limit, the electric gate valve 11 is controlled to open for exhaust. When the VOCs concentration value does not exceed the emission limit, the solenoid valve 6 and the air pump 5 are controlled to open, and the exhaust gas is subjected to secondary adsorption and UV photolysis treatment until the VOCs concentration value exceeds the emission limit, thereby ensuring that the exhaust gas meets the emission standards.

[0038] Working principle: When in use, first, the exhaust gas enters the treatment box 1 through the air inlet 2, and passes through the filter 12 to remove particulate matter and large particle impurities in the exhaust gas. The organic matter in the exhaust gas is adsorbed by activated carbon and molecular sieves, and UV photolysis technology is used for deep purification. Ultraviolet (UV) radiation is used, combined with the action of catalyst TiO2, to decompose organic silicon compounds into simpler harmless substances. Secondly, the concentration value signal is received by the controller to control the solenoid valve 6 and the electric plug valve 11. When the VOCs concentration value exceeds the emission limit, the electric plug valve 11 is controlled to open for exhaust. When the VOCs concentration value does not exceed the emission limit, the solenoid valve 6 and the vacuum pump 5 are controlled to open, and the exhaust gas is subjected to secondary adsorption and UV photolysis treatment until the VOCs concentration value exceeds the emission limit to ensure that the exhaust gas meets the emission standards.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous adsorption treatment mechanism for silicon-containing organic waste gas, comprising a treatment box (1), wherein both ends of the treatment box (1) are fixedly connected with an air inlet (2) and an air outlet (3), and a box door (22) is fixed on one side of the treatment box (1), characterized in that: The processing box (1) is provided with a filter (12), an activated carbon adsorption component, a molecular sieve adsorption component and a UV photolysis reaction component in sequence along the direction from the air inlet (2) to the air outlet (3); The activated carbon adsorption component comprises a filling plate (13), wherein the filling plate (13) is filled with honeycomb activated carbon; The molecular sieve adsorption assembly comprises a filling plate (13), wherein the filling plate (13) is filled with molecular sieve; The filling plate (13) is penetrated by an inverted trapezoidal body in the horizontal direction, and heating plates (14) are fixedly connected in the through-grooves on both sides of the filling plate (13), and a plurality of ventilation grooves (1401) are provided on the heating plate (14). The top and bottom of the filling plate (13) are respectively connected to externally threaded tubes (15) passing through the processing box (1) through threads, and a sealing cover (8) is connected to the externally threaded tubes (15) through a spiral screw connection. The UV photolysis reaction assembly comprises multiple groups of UV lamp tubes (17) fixedly connected in the processing box (1).

2. The continuous adsorption treatment mechanism for silicon-containing organic waste gas according to claim 1, characterized in that: The UV photolysis reaction assembly further comprises a filling tube (10), each group of UV lamps (17) being provided with a filling tube (10) on both sides, the filling tube (10) being filled with a catalyst for promoting the decomposition of organic matter, the filling tube (10) being fixed at both ends through the treatment box (1), and having sealing plugs (9) being interference-fitted at both ends of the filling tube (10), and a plurality of through grooves (1001) being distributed in a ring array on the filling tube (10).

3. The continuous adsorption treatment mechanism for silicon-containing organic waste gas according to claim 1, characterized in that: The invention also includes a driving motor (18), a screw (19), a brush plate (21) and a cleaning sponge (16), wherein the brush plate (21) is sleeved outside the UV lamp tube (17), and the cleaning sponge (16) in contact with the outer wall of the UV lamp tube (17) is adhered to the inner wall of the sleeve hole, and a screw (19) threadedly connected to the brush plate (21) is rotatably installed in the processing box (1), and the driving motor (18) is fixedly installed at the bottom of the processing box (1), and the output shaft of the driving motor (18) is fixedly connected to the bottom end of the screw (19).

4. The continuous adsorption treatment mechanism for silicon-containing organic waste gas according to claim 3, characterized in that: A guide rod (20) passing through the brush plate (21) is fixedly installed in the processing box (1).

5. The continuous adsorption treatment mechanism for silicon-containing organic waste gas according to claim 1, characterized in that: The invention also includes a VOCs concentration detector (7), which is installed on the processing box (1) at a position close to the gas outlet (3). The gas outlet (3) is installed with an electric gate valve (11), and the opening and closing of the electric gate valve (11) is controlled by the VOCs concentration value detected by the VOCs concentration detector (7).

6. The continuous adsorption treatment mechanism for silicon-containing organic waste gas according to claim 5, characterized in that: The invention also includes a reflux pipe (4), an air pump (5) and an electromagnetic valve (6). The reflux pipe (4) is connected to the treatment box (1). The connection point of one end of the reflux pipe (4) is located between the filter screen (12) and the activated carbon adsorption component. The connection point of the other end of the reflux pipe (4) is located between the UV photolysis reaction component and the air outlet (3). The air pump (5) and the electromagnetic valve (6) are installed on the reflux pipe (4). The opening and closing of the air pump (5) and the electromagnetic valve (6) are controlled by the VOCs concentration value detected by the VOCs concentration detector (7).

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