Waste gas spray tower for waste gas treatment

Abstract

The utility model discloses a waste gas spray tower for waste gas treatment, which relates to the technical field of waste gas treatment and comprises a base, a first-stage spray tower and a second-stage spray tower are respectively arranged on two sides of the top of the base; air injection assemblies are arranged at the lower parts in the first-stage spray tower and the second-stage spray tower, and are at least used for spraying waste gas from bottom to top; the air injection assembly comprises an air inlet pipe fixed outside the spray tower, one end of the air inlet pipe is fixedly connected with an annular pipe located inside the spray tower, the top of the annular pipe is fixedly connected with a mounting table, and a plurality of air nozzle modules are fixedly arranged at the top of the mounting table. By improving the air nozzle module of the air injection assembly, liquid sprayed from top to bottom does not directly fall onto the air injection head below but falls onto the top cover, so that the liquid flows to the screen plate along a channel between the top cover and the outer cover and is collected by the liquid collection assembly below, and the air injection head is well protected; and gas pipe blockage during waste gas conveying is avoided.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a waste gas spray tower for waste gas treatment. Background Technology

[0002] A waste gas scrubbing tower is a device that removes pollutants from waste gas by countercurrent contact between a liquid (usually water or a chemical solution) and the waste gas, utilizing mass transfer and chemical reactions. It is one of the most widely used devices in industrial waste gas treatment, especially suitable for treating waste gas containing particulate matter, acidic gases (such as SO2 and HCl), alkaline gases (such as NH3), or volatile organic compounds (VOCs).

[0003] Basic process: Waste gas enters from the bottom of the tower and flows upward; cleaning liquid is evenly sprayed through the spray layer and flows downward; waste gas and liquid come into full contact in the packing layer or spray zone, and pollutants are absorbed or neutralized; purified gas is discharged from the top of the tower, while waste liquid enters the sedimentation tank or recovery system for treatment.

[0004] Currently, the following problems exist when using spray treatment for waste gas: Because liquid is sprayed from above, and a gas pipeline is directly below, with numerous nozzles or orifices above the gas pipeline, the falling liquid reacts with the waste gas, causing the liquid to seal the nozzles or orifices, preventing the gas pipeline from supplying gas normally and affecting the efficiency of waste gas treatment. Therefore, we propose a waste gas spray tower for waste gas treatment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waste gas spray tower for waste gas treatment, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a waste gas spray tower for waste gas treatment, comprising: a base: a primary spray tower and a secondary spray tower are respectively arranged on the top two sides of the base;

[0007] Both the primary and secondary spray towers are equipped with jetting components at the bottom of their interiors, which are used to spray exhaust gas from bottom to top.

[0008] The jet assembly includes an air inlet pipe fixed to the outside of the spray tower, one end of which is fixedly connected to a ring pipe located inside the spray tower, and a mounting platform is fixedly connected to the top of the ring pipe. Several air nozzle modules are fixedly installed on the top of the mounting platform.

[0009] The air nozzle module includes an exhaust pipe fixed on the mounting platform and connected to the inside of the ring pipe. Several connecting brackets are fixedly connected to the top of the exhaust pipe. A top cover is fixedly connected to the top of the exhaust pipe through the connecting brackets. A mesh plate is fixedly installed on the outside of the exhaust pipe, and an outer cover is fixedly installed on the outside of the mesh plate, which is fitted over the top cover and the exhaust pipe.

[0010] Furthermore, the top of the outer cover is provided with an outwardly expanding edge, and the liquid falls from top to bottom onto the top cover and is discharged through the mesh plate.

[0011] Furthermore, a gas transmission pipe is provided between the primary spray tower and the secondary spray tower.

[0012] Furthermore, both the primary and secondary spray towers are equipped with liquid collection components fixed to the top of the base.

[0013] Furthermore, the liquid collection assembly includes an inner cavity fixedly located inside the lower part of the primary spray tower or the secondary spray tower. A liquid storage box is fixedly connected to one outer wall of the inner cavity. A filter screen is provided between the liquid storage box and the inner cavity. A cover plate is provided on the top of the liquid storage box. An inlet pipe is provided above the liquid storage box.

[0014] Furthermore, both the primary and secondary spray towers are equipped with spraying components above their interiors. Each spraying component includes a liquid distribution pipe fixed inside the primary and secondary spray towers, and several spray heads are fixedly installed at the bottom of the liquid distribution pipe.

[0015] This utility model provides a waste gas scrubbing tower for waste gas treatment, which has the following beneficial effects:

[0016] By improving the nozzle module of the jet assembly, the liquid sprayed from top to bottom will not fall directly onto the lower jet head, but will fall onto the top cover. The liquid will then flow through the channel between the top cover and the outer cover to the mesh plate and be collected by the liquid collection assembly below, which plays a good role in protecting the jet head and preventing the air pipe from being blocked when transporting exhaust gas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a waste gas spray tower for waste gas treatment according to the present invention;

[0018] Figure 2 This is a schematic diagram of the liquid collection component structure of a waste gas spray tower for waste gas treatment according to the present invention;

[0019] Figure 3 This is a schematic diagram of the spray assembly structure of a waste gas spray tower for waste gas treatment according to the present invention;

[0020] Figure 4This is a schematic diagram of the jet assembly structure of a waste gas spray tower for waste gas treatment according to the present invention;

[0021] Figure 5 This is a schematic diagram of the nozzle module structure of a waste gas spray tower for waste gas treatment according to the present invention;

[0022] Figure 6 This is a cross-sectional view of the nozzle module structure of a waste gas spray tower for waste gas treatment according to the present invention.

[0023] 1. Base; 2. Primary spray tower; 3. Secondary spray tower; 4. Liquid collection assembly; 41. Inner cavity; 42. Liquid storage box; 43. Filter screen; 44. Cover plate; 45. Liquid inlet pipe; 5. Gas transmission pipe; 6. Jet assembly; 61. Air inlet pipe; 62. Ring pipe; 63. Mounting platform; 64. Air nozzle module; 641. Outer cover; 642. Top cover; 643. Mesh plate; 644. Exhaust pipe; 645. Connecting frame; 7. Spray assembly; 71. Liquid distribution pipe; 72. Spray head. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1-6 As shown, this utility model provides a technical solution: a waste gas scrubbing tower for waste gas treatment, comprising: a base 1; a primary scrubbing tower 2 and a secondary scrubbing tower 3 are respectively arranged on the top two sides of the base 1; an air jet assembly 6 is arranged at the lower part of the interior of both the primary scrubbing tower 2 and the secondary scrubbing tower 3, the air jet assembly 6 being used at least to spray waste gas from bottom to top; the air jet assembly 6 includes an air inlet pipe 61 fixed to the outside of the scrubbing tower, one end of the air inlet pipe 61 being fixedly connected to an annular pipe 62 located inside the scrubbing tower, and the top of the annular pipe 62 being fixedly connected to an installation... The mounting platform 63 has several air nozzle modules 64 fixedly installed on its top. Each air nozzle module 64 includes an exhaust pipe 644 fixedly installed on the mounting platform 63 and connected to the inside of the ring pipe 62. Several connecting brackets 645 are fixedly connected to the top of the exhaust pipe 644. A top cover 642 is fixedly connected to the top of the exhaust pipe 644 through the connecting brackets 645. A mesh plate 643 is fixedly installed on the outside of the exhaust pipe 644, and an outer cover 641 is fixedly installed on the outside of the mesh plate 643, which is fitted over the top cover 642 and the exhaust pipe 644.

[0026] In this embodiment, it includes: a base 1, which is welded from a steel structure; a primary spray tower 2 and a secondary spray tower 3 are respectively installed on the top two sides of the base 1, and the primary spray tower 2 and the secondary spray tower 3 are respectively used to achieve primary spray treatment and secondary spray treatment of the exhaust gas.

[0027] In this embodiment, jet assembly 6 is provided at the bottom of the interior of both the primary spray tower 2 and the secondary spray tower 3. The jet assembly 6 is used to spray the exhaust gas from bottom to top.

[0028] Specifically, the jet assembly 6 includes an air inlet pipe 61 fixed to the outside of the spray tower. The air inlet pipe 61 is connected to the exhaust gas pipeline to transport the exhaust gas into the interior of the air inlet pipe 61. One end of the air inlet pipe 61 is fixedly connected to a ring pipe 62 located inside the spray tower. The top of the ring pipe 62 is fixedly connected to a mounting platform 63. The mounting platform 63 realizes the fixed installation of the nozzle module 64. Several nozzle modules 64 are fixedly installed on the top of the mounting platform 63. The exhaust gas entering the air inlet pipe 61 enters the nozzle module 64 through the ring pipe 62.

[0029] More specifically, the nozzle module 64 includes an exhaust pipe 644 fixed on the mounting platform 63 and connected to the inside of the ring pipe 62. Several connecting brackets 645 are fixedly connected to the top of the exhaust pipe 644. A top cover 642 is fixedly connected to the top of the exhaust pipe 644 through the connecting brackets 645. A mesh plate 643 is fixedly installed on the outside of the exhaust pipe 644. An outer cover 641 is fixedly installed on the outside of the mesh plate 643, which is fitted over the top cover 642 and the exhaust pipe 644. When the spray assembly 7 is started, it can spray liquid from top to bottom. The liquid falls below through the internal filler and hits the upper surface of the top cover 642. It then flows into the channel between the outer cover 641 and the top cover 642. The liquid gathers above the mesh plate 643 and flows down through the mesh plate 643 into the liquid collection assembly 4 for collection.

[0030] The top of the outer cover 641 is provided with an outwardly expanding edge. The liquid falls from top to bottom onto the top cover 642 and is discharged through the mesh plate 643, so that the sprayed exhaust gas hits the lower surface of the top cover 642 and disperses to the outside of the exhaust pipe 644. It is then collected by the outer cover 641 and sprayed upward, making full contact with the liquid falling from above and reacting to achieve the purpose of exhaust gas spray treatment.

[0031] In this embodiment, a gas transmission pipe 5 is provided between the primary spray tower 2 and the secondary spray tower 3. Through the gas transmission pipe 5, the gas processed by the primary spray tower 2 can be transported back to the interior of the secondary spray tower 3 for secondary processing.

[0032] In this embodiment, liquid collection components 4 are fixed to the top of the base 1 below both the primary spray tower 2 and the secondary spray tower 3.

[0033] Specifically, the liquid collection assembly 4 includes an inner cavity 41 fixedly located below the interior of the primary spray tower 2 or the secondary spray tower 3. A liquid storage box 42 is fixedly connected to one outer wall of the inner cavity 41. A filter screen 43 is provided between the liquid storage box 42 and the inner cavity 41. A cover plate 44 is provided on the top of the liquid storage box 42. An upper liquid pipe 45 is provided above the liquid storage box 42. The liquid sprayed down by the spray assembly 7 is collected by the inner cavity 41. The liquid inside the inner cavity 41 flows into the interior of the liquid storage box 42 and is filtered for impurities by the filter screen 43 before being collected and stored inside the liquid storage box 42.

[0034] A pump located inside the liquid storage box 42 is installed at the bottom of the liquid inlet pipe 45. The pump draws the liquid inside the liquid storage box 42 through the liquid inlet pipe 45 to the spray assembly 7, so as to realize the recycling of the liquid.

[0035] In this embodiment, a spray assembly 7 is provided above the interior of both the primary spray tower 2 and the secondary spray tower 3. The spray assembly 7 includes a liquid distribution pipe 71 fixed inside the primary spray tower 2 and the secondary spray tower 3. Several spray nozzles 72 are fixedly installed at the bottom of the liquid distribution pipe 71. The pump delivers liquid to the interior of the liquid distribution pipe 71, and the liquid is sprayed downwards from the several spray nozzles 72 below, thereby reacting with the rising exhaust gas below to achieve the purpose of purifying the exhaust gas.

Claims

1. A waste gas scrubbing tower for waste gas treatment, comprising: Base (1): characterized in that: a primary spray tower (2) and a secondary spray tower (3) are respectively provided on the top two sides of the base (1); Both the primary spray tower (2) and the secondary spray tower (3) are equipped with jet assembly (6) at the bottom of their interiors. The jet assembly (6) is used to spray the exhaust gas from bottom to top. The jet assembly (6) includes an air inlet pipe (61) fixed to the outside of the spray tower. One end of the air inlet pipe (61) is fixedly connected to a ring pipe (62) located inside the spray tower. The top of the ring pipe (62) is fixedly connected to an installation platform (63). Several air nozzle modules (64) are fixedly installed on the top of the installation platform (63). The nozzle module (64) includes an exhaust pipe (644) fixed on the mounting platform (63) and connected to the inside of the ring pipe (62). Several connecting brackets (645) are fixedly connected to the top of the exhaust pipe (644). A top cover (642) is fixedly connected to the top of the exhaust pipe (644) through the connecting brackets (645). A mesh plate (643) is fixedly installed on the outside of the exhaust pipe (644), and an outer cover (641) is fixedly installed on the outside of the mesh plate (643) and fitted onto the top cover (642) and the exhaust pipe (644).

2. The waste gas spray tower for waste gas treatment according to claim 1, characterized in that: The top of the outer cover (641) is provided with an outwardly expanding edge, and the liquid falls from top to bottom onto the top cover (642) and is discharged through the mesh plate (643).

3. The waste gas spray tower for waste gas treatment according to claim 1, characterized in that: A gas transmission pipe (5) is provided between the primary spray tower (2) and the secondary spray tower (3).

4. The waste gas spray tower for waste gas treatment according to claim 1, characterized in that: Both the primary spray tower (2) and the secondary spray tower (3) are equipped with liquid collection components (4) fixed to the top of the base (1).

5. A waste gas spray tower for waste gas treatment according to claim 4, characterized in that: The liquid collection assembly (4) includes an inner cavity (41) fixedly located below the interior of the primary spray tower (2) or the secondary spray tower (3). A liquid storage box (42) is fixedly connected to one side of the outer wall of the inner cavity (41). A filter screen (43) is provided between the liquid storage box (42) and the inner cavity (41). A cover plate (44) is provided on the top of the liquid storage box (42). An upper liquid pipe (45) is provided above the liquid storage box (42).

6. A waste gas spray tower for waste gas treatment according to claim 1, characterized in that: Spraying components (7) are provided above the interior of both the primary spray tower (2) and the secondary spray tower (3). The spraying components (7) include a liquid distribution pipe (71) fixed inside the primary spray tower (2) and the secondary spray tower (3). Several spray heads (72) are fixedly installed at the bottom of the liquid distribution pipe (71).

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