Spraying and filtering waste gas purification device

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a spraying and filtering waste gas purification device. The spraying and filtering waste gas purification device comprises a purification cylinder, the top of the purification cylinder is provided with an opening, a hollow pipe which is coaxially arranged is fixedly mounted in the purification cylinder, the outer pipe wall of the hollow pipe is fixedly sleeved with a spiral plate, a cavity between the purification cylinder and the hollow pipe forms a spiral cavity structure through the spiral plate, and a spiral activated carbon plate is mounted in the spiral cavity structure; and an air locking component is mounted in the hollow pipe. According to the spraying, filtering and waste gas purifying device provided by the utility model, the gas locking component automatically adjusts the opening and closing of the gas port according to the air pressure change through the linkage design of the spring and the sealing disc, the waste gas is forced to be baffled for multiple times and is in contact with the spraying liquid, the short flow phenomenon is avoided, and the flow path of the waste gas is obviously prolonged through the spiral cavity structure constructed by the spiral plates; the contact time of spraying liquid and the spiral activated carbon plate is prolonged, and the purification efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a spray filtration waste gas purification device. Background Technology

[0002] Waste gas treatment, also known as waste gas purification, refers to the pretreatment of waste gas generated in industrial sites and factory workshops before its external emission to meet national emission standards. Generally, waste gas treatment includes the treatment of organic waste gas, dust waste gas, acid and alkali waste gas, odor waste gas, and air sterilization and disinfection. Traditionally, spray adsorption equipment is used for this purification. The waste gas passes through the packing material inside the spray tower for purification, and then is further purified by spraying with a spray liquid. For example, patent number CN206064102U typically uses a spray tower combined with a packing layer for purification. However, this method has a significant drawback: the waste gas flows rapidly towards the outlet after passing through the packing layer, resulting in a short contact time between the gas and the spray liquid, leading to low purification efficiency.

[0003] Therefore, it is necessary to provide a new spray filtration exhaust gas purification device to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a spray filtration exhaust gas purification device.

[0005] The spray filtration exhaust gas purification device provided by this utility model includes a purification cylinder, the top of which is open, and a hollow tube is fixedly installed inside the purification cylinder, with an air inlet at the bottom of the hollow tube.

[0006] The outer wall of the hollow tube is fixedly fitted with a spiral plate, and the outer wall of the spiral plate is fixedly connected to the inner wall of the purification cylinder. The cavity between the purification cylinder and the hollow tube forms a spiral cavity structure through the spiral plate. Several annularly distributed curved air guide channels are opened in the hollow tube, and the spiral cavity structure and the hollow tube are connected through the curved air guide channels.

[0007] A spiral activated carbon plate is installed inside the spiral cavity structure;

[0008] An airlock component is installed inside the hollow tube, and the airlock component includes a mounting bottom ring with an air port and a sealing disc for sealing the air port.

[0009] Preferably, the mounting bottom ring is fixedly mounted on the inner wall of the hollow tube by screws, and a bracket is fixedly mounted on the mounting bottom ring. A mounting top ring coaxially arranged with the mounting bottom ring is fixedly mounted on the bracket, and a sliding rod is inserted into the mounting top ring. The sealing disc is fixedly mounted on the bottom of the sliding rod, and a spring is sleeved on the sliding rod.

[0010] Preferably, one end of the spring is fixedly connected to the upper surface of the sealing disc, and the other end of the spring is fixedly connected to the inner top wall of the mounting top ring.

[0011] Preferably, the mounting top ring has multiple annularly distributed vent holes.

[0012] Preferably, a rod cap is fixedly installed on the top of the sliding rod.

[0013] Preferably, one end opening of the curved air guide channel is located on the tube body near the top of the hollow tube and communicates with the inner cavity of the hollow tube, and the other end opening of the curved air guide channel is located on the tube body near the bottom of the hollow tube and communicates with the spiral cavity structure.

[0014] Preferably, a retaining ring is fixedly installed on the purification cylinder.

[0015] Preferably, a conical hopper is fixedly installed at the bottom of the purification cylinder, and the conical hopper is connected to the air inlet provided at the bottom of the hollow tube.

[0016] Compared with related technologies, the spray filtration exhaust gas purification device provided by this utility model has the following beneficial effects:

[0017] In this invention, the airlock component uses a spring-sealing disc linkage design to automatically adjust the opening and closing of the air inlet according to changes in air pressure, forcing the exhaust gas to deflect multiple times and come into contact with the spray liquid, thus avoiding short-flow phenomenon. The spiral cavity structure constructed by the spiral plate significantly extends the exhaust gas flow path, increases the contact time with the spray liquid and the spiral activated carbon plate, and improves the purification efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the spray filtration waste gas purification device provided by this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-section of the purification cylinder shown;

[0020] Figure 3 for Figure 2 A cross-sectional view of the purification cylinder shown.

[0021] Figure 4 for Figure 1 The diagram shows the structure of the spiral activated carbon plate.

[0022] Figure 5 for Figure 2 The diagram shows the structure of the airlock component.

[0023] The following are the labels in the diagram: 1. Purification cylinder; 11. Fixing ring; 12. Conical hopper; 2. Hollow tube; 2a. Air inlet; 2b. Curved air guide channel; 3. Spiral plate; 3a. Spiral cavity structure; 4. Spiral activated carbon plate; 5. Airlock component; 51. Mounting bottom ring; 51a. Air inlet; 52. Bracket; 53. Mounting top ring; 53a. Exhaust hole; 54. Sliding rod; 541. Rod cap; 55. Sealing plate; 56. Spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 5 The present invention provides a spray filtration exhaust gas purification device, which includes a purification cylinder 1, a hollow tube 2, a spiral plate 3, a spiral activated carbon plate 4, and an airlock component 5.

[0027] In the embodiments of this utility model, please refer to Figures 1 to 5 A fixing ring 11 is fixedly installed on the purification cylinder 1. The top of the purification cylinder 1 is open, and a coaxial hollow tube 2 is fixedly installed inside the purification cylinder 1. An air inlet 2a is provided at the bottom of the hollow tube 2, and several annularly distributed curved air guide channels 2b are opened inside the hollow tube 2. An air-locking component 5 is installed inside the hollow tube 2, and the air-locking component 5 includes a mounting bottom ring 51 with an air port 51a and a sealing disc 55 for sealing the air port 51a. Specifically,

[0028] The mounting bottom ring 51 is fixedly mounted on the inner wall of the hollow tube 2 by screws, and a bracket 52 is fixedly mounted on the mounting bottom ring 51. A mounting top ring 53 coaxially arranged with the mounting bottom ring 51 is fixedly mounted on the bracket 52, and a sliding rod 54 is inserted into the mounting top ring 53. A sealing disc 55 is fixedly mounted on the bottom of the sliding rod 54, and a spring 56 is sleeved on the sliding rod 54. One end of the spring 56 is fixedly connected to the upper surface of the sealing disc 55, and the other end of the spring 56 is fixedly connected to the inner top wall of the mounting top ring 53. The mounting top ring 53 has multiple annularly distributed vent holes 53a.

[0029] It should be noted that: the fixing ring 11 is fixed to the top of the spray system of the spray equipment (such as a spray tower) by screws. Therefore, when the exhaust gas floats to the bottom of the purification cylinder 1 after being adsorbed by the packing and the spray liquid, the sealing plate 55 is driven by the spring 56 to seal the air port 51a of the bottom ring 51. Therefore, the gas cannot be discharged and can only accumulate in the lower cavity of the purification cylinder 1, so that some gas flows back and comes into contact with the spray liquid again, thus further improving the purification effect of the spray liquid on the exhaust gas.

[0030] When the air pressure in the lower cavity of the purification cylinder 1 is greater than the elastic force of the spring 56, the sealing disc 55 slides up along the top mounting ring 53 with the sliding rod 54. At this time, the air port 51a opened by the bottom mounting ring 51 opens, so that the gas enters the hollow tube 2 and is diverted by the curved air guide channel 2b to the chamber near the bottom of the spiral cavity structure 3a.

[0031] When the air pressure in the lower cavity of the purification cylinder 1 is less than the elastic force of the spring 56, the sealing disc 55 seals the air port 51a of the mounting bottom ring 51 again, allowing the gas newly entering the spray area to stay and come into contact with the spray liquid multiple times.

[0032] Furthermore, one end of the curved air guide channel 2b is located on the tube body near the top of the hollow tube 2 and communicates with the inner cavity of the hollow tube 2, while the other end of the curved air guide channel 2b is located on the tube body near the bottom of the hollow tube 2 and communicates with the spiral cavity structure 3a, so that the exhaust gas entering the hollow tube 2 can enter the chamber near the bottom of the spiral cavity structure 3a.

[0033] Furthermore, a conical hopper 12 is fixedly installed at the bottom of the purification cylinder 1, and the conical hopper 12 is connected to the air inlet 2a set at the bottom of the hollow tube 2. The conical hopper 12 facilitates the collection of exhaust gas into the hollow tube 2.

[0034] The top of the sliding rod 54 is fixedly fitted with a rod cap 541 to prevent the sliding rod 54 from slipping off the mounting top ring 53.

[0035] It is worth noting that, in order to avoid fatigue failure of spring 56 under continuous high pressure, which would lead to poor sealing of sealing disc 55, spring 56 is made of high-temperature resistant and high-strength alloy spring material.

[0036] In the embodiments of this utility model, please refer to Figures 1 to 5 The outer wall of the hollow tube 2 is fixedly fitted with a spiral plate 3, and the outer wall of the spiral plate 3 is fixedly connected to the inner wall of the purification cylinder 1. The cavity between the purification cylinder 1 and the hollow tube 2 forms a spiral cavity structure 3a through the spiral plate 3, and a spiral activated carbon plate 4 is installed inside the spiral cavity structure 3a.

[0037] It should be noted that after the exhaust gas enters the spiral cavity structure 3a, it flows along the spiral cavity structure 3a. The spiral activated carbon plate 4 installed in the spiral cavity structure 3a can purify the exhaust gas again. At the same time, the spiral cavity structure 3a greatly extends the flow path of the exhaust gas, so that the spiral activated carbon plate 4 can fully purify the exhaust gas. The treated exhaust gas can then be discharged through the exhaust pipe at the top.

[0038] Since the spiral activated carbon plate 4 adopts a spiral structure, it is simple and convenient to install or remove it by simply screwing the spiral activated carbon plate 4 into or out along the spiral cavity structure 3a.

[0039] In this application, the airlock component 5, through the linkage design of spring 56 and sealing disc 55, automatically adjusts the opening and closing of air port 51a according to the change of air pressure, forcing the exhaust gas to deflect multiple times and come into contact with the spray liquid, avoiding short-flow phenomenon. The spiral cavity structure 3a constructed by spiral plate 3 significantly extends the exhaust gas flow path, increases the contact time with spray liquid and spiral activated carbon plate 4, and improves purification efficiency.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spray filtration exhaust gas purification device, comprising a purification cylinder (1), wherein the top of the purification cylinder (1) is open, and a coaxially arranged hollow tube (2) is fixedly installed inside the purification cylinder (1), and an air inlet (2a) is provided at the bottom of the hollow tube (2), characterized in that: The outer wall of the hollow tube (2) is fixedly fitted with a spiral plate (3), and the outer wall of the spiral plate (3) is fixedly connected to the inner wall of the purification cylinder (1). The cavity between the purification cylinder (1) and the hollow tube (2) forms a spiral cavity structure (3a) through the spiral plate (3). Several annularly distributed curved air guide channels (2b) are opened in the hollow tube (2), and the spiral cavity structure (3a) and the hollow tube (2) are connected through the curved air guide channels (2b). A spiral activated carbon plate (4) is installed inside the spiral cavity structure (3a); An airlock component (5) is installed inside the hollow tube (2), and the airlock component (5) includes a mounting bottom ring (51) with an air port (51a) and a sealing disc (55) for sealing the air port (51a).

2. The spray filtration exhaust gas purification device according to claim 1, characterized in that, The mounting bottom ring (51) is fixedly mounted on the inner wall of the hollow tube (2) by screws, and a bracket (52) is fixedly mounted on the mounting bottom ring (51). A mounting top ring (53) coaxially arranged with the mounting bottom ring (51) is fixedly mounted on the bracket (52), and a sliding rod (54) is inserted into the mounting top ring (53). The sealing disc (55) is fixedly mounted on the bottom of the sliding rod (54), and a spring (56) is sleeved on the sliding rod (54).

3. The spray filtration exhaust gas purification device according to claim 2, characterized in that, One end of the spring (56) is fixedly connected to the upper surface of the sealing disc (55), and the other end of the spring (56) is fixedly connected to the inner top wall of the mounting top ring (53).

4. The spray filtration exhaust gas purification device according to claim 2, characterized in that, The mounting top ring (53) has multiple annularly distributed vent holes (53a).

5. The spray filtration exhaust gas purification device according to claim 2, characterized in that, A rod cap (541) is fixedly installed on the top of the sliding rod (54).

6. The spray filtration exhaust gas purification device according to claim 1, characterized in that, One end of the curved air guide channel (2b) is located on the tube body near the top of the hollow tube (2) and communicates with the inner cavity of the hollow tube (2), while the other end of the curved air guide channel (2b) is located on the tube body near the bottom of the hollow tube (2) and communicates with the spiral cavity structure (3a).

7. The spray filtration exhaust gas purification device according to claim 1, characterized in that, A fixing ring (11) is fixedly installed on the purification cylinder (1).

8. The spray filtration exhaust gas purification device according to claim 1, characterized in that, A conical bucket (12) is fixedly installed at the bottom of the purification cylinder (1), and the conical bucket (12) is connected to the air inlet (2a) provided at the bottom of the hollow tube (2).

Images