Waste gas particulate matter and nitrogen oxide treatment device

Abstract

The utility model discloses a waste gas particulate matter and nitrogen oxide treatment device, and relates to the technical field of nitrogen oxide treatment. Comprising a circulating box, the upper end of the circulating box is fixedly connected with a cooling box I, the upper end of the cooling box I is fixedly connected with a cooling box II, the inner side wall of the cooling box II is fixedly connected with a filter disc, the lower surface of the filter disc is fixedly connected with a filter membrane, and the upper surface of the filter disc is fixedly connected with a cooling disc; one end of the cooling disc penetrates through the filtering disc to be fixedly connected with a cooling pipe, the cooling disc communicates with the cooling pipe, and the cooling pipe is located in the cooling box I. The upper end of the cooling box II is fixedly connected with a purification box, an exhaust assembly is installed at the upper end of the purification box, a slow flow mechanism is installed in the purification box, and the lower end of the side surface of the purification box is fixedly connected with an air inlet pipe. The problems that the cooling time of traditional nitrogen oxide adsorption liquid is long, and the cooling effect of the adsorption liquid far away from the cooling device is poor are solved, and therefore the cooling effect on the adsorption liquid is improved.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen oxide treatment technology, specifically to a waste gas particulate matter and nitrogen oxide treatment device. Background Technology

[0002] Nitrogen oxides are one of the major sources of air pollution. In many chemical production processes, the raw gas contains a certain amount of nitrogen oxides, which must be removed to meet the requirements of the process. Common removal methods include reduction, liquid absorption, and adsorption.

[0003] Liquid adsorption for nitrogen oxide removal typically involves spraying an adsorbent liquid into the nitrogen oxide gas through a treatment device to remove gaseous particles and harmful components. During the adsorption process, the liquid releases heat. If the liquid is not cooled, its temperature will rise continuously, leading to excessive heat. This high temperature gradually reduces the adsorption efficiency, causing the treated nitrogen oxide gas to fail to meet emission standards. Therefore, cooling is necessary. Existing nitrogen oxide adsorption liquid cooling devices generally involve installing a spiral cooling tube inside the adsorption liquid tank and circulating coolant through it. However, this cooling method is time-consuming and less effective at locations far from the spiral cooling tube, thus reducing the overall cooling efficiency of the nitrogen oxide adsorption liquid. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a waste gas particulate matter and nitrogen oxide treatment device, which solves the problems of long cooling time for traditional nitrogen oxide adsorption liquid and poor cooling effect for adsorption liquid located far from the cooling device, thus improving the cooling effect of the adsorption liquid.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste gas particulate matter and nitrogen oxide treatment device, comprising a circulation box, a cooling box I fixedly connected to the upper end of the circulation box, and a cooling box II fixedly connected to the upper end of the cooling box I. A filter plate is fixedly connected to the inner side wall of the cooling box II, and a filter membrane is fixedly connected to the lower surface of the filter plate. A cooling plate is fixedly connected to the upper surface of the filter plate, and a cooling pipe is fixedly connected to one end of the cooling plate through the filter plate. The cooling plate and the cooling pipe are connected, and the cooling pipe is located inside the cooling box I. A purification box is fixedly connected to the upper end of the cooling box II, and an exhaust assembly is installed at the upper end of the purification box. A flow-slowing mechanism is installed inside the purification box, and an air inlet pipe is fixedly connected to the lower end of the side surface of the purification box, with one end of the air inlet pipe located below the circulation mechanism.

[0006] Preferably, the circulation mechanism includes a fixed ring, and the side surface of the fixed ring is fixedly connected to the inner surface of the purification box. A flow-slowing plate is rotatably connected inside the fixed ring, and a rotating platform is fixedly connected to one end of the flow-slowing plate. A secondary flow-slowing component is provided above the rotating platform.

[0007] Preferably, the secondary flow-retarding component includes a rotating shaft, the lower end of which is fixedly connected to the upper surface of the rotating table, and a fan blade is fixedly connected to the upper end of the rotating shaft.

[0008] Preferably, the cooling plate on the upper surface of the filter plate has a disc-shaped spiral structure, and the cooling pipe below the filter plate has a spring-shaped spiral structure.

[0009] Preferably, a demisting partition is fixedly connected to the upper end of the purification box, and an exhaust pipe is fixedly connected to the upper end of the demisting partition, and an air pump is fixedly installed on the lower side surface of the exhaust pipe.

[0010] Preferably, a pump body is fixedly connected to the side surface of the circulation box, and a delivery pipe is fixedly connected to one end of the pump body. One end of the delivery pipe passes through the purification box and is fixedly connected to a spray head, which is located below the fan blades.

[0011] This invention provides a device for treating particulate matter and nitrogen oxides in exhaust gas. Compared with the prior art, it has the following advantages:

[0012] 1. By using the filter plate and the cooling plate on the upper surface of the filter plate and the filter membrane and cooling pipe on the lower surface of the filter plate inside the cooling tank II, the coolant can be cooled more evenly. At the same time, the filter membrane can delay the time that the adsorbent passes through the cooling plate, thus improving the cooling effect of the adsorbent. The cooling pipe below the filter plate can further improve the cooling effect of the adsorbent. Therefore, the problems of poor cooling effect and uneven cooling of the coolant by traditional cooling methods are solved.

[0013] 2. The rotating shaft fixedly connected to the upper surface of the rotating platform and the fan blades fixedly connected to the upper end of the rotating shaft can further reduce the time for nitrogen oxide gas to pass through the purification box, thus further improving the treatment effect of nitrogen oxide gas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the circulating mechanism in this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of cooling box I and cooling box II of this utility model.

[0017] In the diagram: 1. Circulation box, 2. Exhaust pipe, 3. Pump body, 4. Cooling box I, 5. Cooling box II, 6. Purification box, 7. Demisting layer, 8. Inlet pipe, 9. Air pump, 10. Fixing ring, 1001. Flow buffer, 1002. Fan blade, 1003. Rotating shaft, 1004. Rotating table, 11. Filter plate, 1101. Cooling plate, 1102. Cooling pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a waste gas particulate matter and nitrogen oxide treatment device, including a circulation box 1, a cooling box I 4 fixedly connected to the upper end of the circulation box 1, and a cooling box II 5 fixedly connected to the upper end of the cooling box I 4. A filter plate 11 is fixedly connected to the inner side wall of the cooling box II 5, and a filter membrane is fixedly connected to the lower surface of the filter plate 11. A cooling plate 1101 is fixedly connected to the upper surface of the filter plate 11, and a cooling pipe 1102 is fixedly connected to one end of the cooling plate 11 through the filter plate 11. The cooling plate 1101 and the cooling pipe 1102 are connected in communication, and the cooling pipe 1102 is located inside the cooling box I 4. A purification box 6 is fixedly connected to the upper end of the cooling box II 5, and an exhaust assembly is installed at the upper end of the purification box 6. A slow flow mechanism is installed inside the purification box 6, and an air inlet pipe 8 is fixedly connected to the lower end of the side surface of the purification box 6, with one end of the air inlet pipe 8 located below the circulation mechanism.

[0020] As a technical optimization of this utility model, the circulation mechanism includes a fixed ring 10, and the side surface of the fixed ring 10 is fixedly connected to the inner surface of the purification box 6. A flow-retarding plate 1001 is rotatably connected inside the fixed ring 10, and a rotating platform 1004 is fixedly connected to one end of the flow-retarding plate 1001. A secondary flow-retarding component is provided above the rotating platform 1004, which can cause the solid to spiral upward when nitrogen oxide gas is introduced, and prolong the existence time of nitrogen oxide gas inside the purification box 6, thus enabling further and more thorough adsorption treatment of nitrogen oxides.

[0021] As a technical optimization of this utility model, the secondary flow-retarding component includes a rotating shaft 1003, and the lower end of the rotating shaft 1003 is fixedly connected to the upper surface of the rotating table 1004. The upper end of the rotating shaft 1003 is fixedly connected to a fan blade 1002. The rotation of the flow-retarding plate 1001 can drive the rotating shaft 1003 and the fan blade 1002 to rotate. Therefore, the fan blade 1002 can gently push the nitrogen oxides in the opposite direction to remain inside the purification box 6, thus further increasing the treatment time of nitrogen oxide gas and enabling more thorough treatment of nitrogen oxide gas.

[0022] As a technical optimization of this utility model, the cooling plate 1101 on the upper surface of the filter plate 11 has a disc-shaped spiral structure, and the cooling pipe 1102 below the filter plate 11 has a spring-shaped spiral structure, which can increase the contact area between the adsorbent liquid at the spraying point and the cooling plate 1101 and the cooling pipe 1102, thus further reducing the cooling effect on the adsorbent liquid and avoiding uneven cooling.

[0023] As a technical optimization of this utility model, the upper end of the purification box 6 is fixedly connected to a demisting layer 7, and the upper end of the demisting layer 7 is fixedly connected to an exhaust pipe 2. An air pump 9 is fixedly installed on the lower side surface of the exhaust pipe 2. The demisting layer 7 can demist the treated nitrogen oxide gas to avoid the exhaust gas containing mist. The air pump 9 can make the treated nitrogen oxide gas discharge more smoothly.

[0024] As a technical optimization of this utility model, a pump body 3 is fixedly connected to the side surface of the circulation box 1, and a conveying pipe is fixedly connected to one end of the pump body 3. One end of the conveying pipe passes through the purification box 6 and is fixedly connected to a spray head, which is located below the fan blade 1002. This allows the cooled adsorbent liquid to be recirculated and transported into the interior of the purification box 6, and the nitrogen oxide gas to be continuously purified.

[0025] In use, this invention first sends the nitrogen oxide adsorbent liquid inside the circulation box 1 to the purification box 6 via the delivery pipe by starting the exhaust pipe 2, and sprays it out through the nozzle. Simultaneously, nitrogen oxide gas is supplied to the purification box 6 through the air inlet pipe 8. The gas rises and passes through the flow-retardant plate 1001 inside the fixed ring 10. Therefore, the flow-retardant plate 1001 rotates under the pressure of the gas, causing the nitrogen oxide gas to rise in a spiral, thus delaying the time it takes for the nitrogen oxide gas to pass through the purification box 6. During the rotation of the flow-retardant plate 1001, the fan blades 1002 also rotate. 1002 will push the nitrogen oxide gas in the reverse direction, causing the gas to pass through the purification box 6 more slowly, thus further treating the nitrogen oxide gas. The adsorbent liquid that has been treated will fall onto the upper surface of the filter plate 11 and the side surface of the cooling plate 1101 inside the cooling box II 5. Therefore, the cooling plate 1101 will cool the adsorbent liquid. At the same time, the filter membrane on the lower surface of the filter plate 11 can slow down the falling time of the adsorbent liquid, thus achieving better and more uniform cooling of the adsorbent liquid. During the falling process, the adsorbent liquid will also pass through the cooling pipe 1102, thus accelerating the cooling time of the adsorbent liquid and improving the cooling effect.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for treating particulate matter and nitrogen oxides in exhaust gas, comprising a circulation tank (1), characterized in that: The upper end of the circulation tank (1) is fixedly connected to a cooling tank I (4), and the upper end of the cooling tank I (4) is fixedly connected to a cooling tank II (5). The inner side wall of the cooling tank II (5) is fixedly connected to a filter plate (11), and a filter membrane is fixedly connected to the lower surface of the filter plate (11). The upper surface of the filter plate (11) is fixedly connected to a cooling plate (1101), and one end of the cooling plate (1101) passes through the filter plate (11) and is fixedly connected to a cooling pipe (11). 02), the cooling plate (1101) is connected to the cooling pipe (1102), and the cooling pipe (1102) is located inside the cooling box I (4). The upper end of the cooling box II (5) is fixedly connected to the purification box (6), and the upper end of the purification box (6) is equipped with an exhaust assembly. The purification box (6) is equipped with a slow flow mechanism, and the lower end of the side surface of the purification box (6) is fixedly connected to the air inlet pipe (8), and one end of the air inlet pipe (8) is located below the circulation mechanism.

2. The waste gas particulate matter and nitrogen oxide treatment device according to claim 1, characterized in that: The circulation mechanism includes a fixed ring (10), and the side surface of the fixed ring (10) is fixedly connected to the inner surface of the purification box (6). The fixed ring (10) is rotatably connected to a flow buffer (1001), and one end of the flow buffer (1001) is fixedly connected to a rotating platform (1004). A secondary flow buffer is provided above the rotating platform (1004).

3. The waste gas particulate matter and nitrogen oxide treatment device according to claim 2, characterized in that: The secondary flow-retarding component includes a rotating shaft (1003), and the lower end of the rotating shaft (1003) is fixedly connected to the upper surface of the rotating table (1004). A fan blade (1002) is fixedly connected to the upper end of the rotating shaft (1003).

4. The waste gas particulate matter and nitrogen oxide treatment device according to claim 1, characterized in that: The cooling plate (1101) on the upper surface of the filter plate (11) has a disc-shaped spiral structure, and the cooling pipe (1102) below the filter plate (11) has a spring-shaped spiral structure.

5. The waste gas particulate matter and nitrogen oxide treatment device according to claim 1, characterized in that: The upper end of the purification box (6) is fixedly connected to a demisting layer (7), and the upper end of the demisting layer (7) is fixedly connected to an exhaust pipe (2). An air pump (9) is fixedly installed on the lower side surface of the exhaust pipe (2).

6. The waste gas particulate matter and nitrogen oxide treatment device according to claim 1, characterized in that: A pump body (3) is fixedly connected to the side surface of the circulation box (1), and a conveying pipe is fixedly connected to one end of the pump body (3). One end of the conveying pipe passes through the purification box (6) and is fixedly connected to a spray head, which is located below the fan blade (1002).

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