Flue gas desulfurization, denitrification and dust removal device

Abstract

The utility model provides a flue gas desulfurization, denitrification and dust removal device, and relates to the technical field of flue gas treatment, the flue gas desulfurization, denitrification and dust removal device comprises a shell, a desulfurization and denitrification assembly and a filter screen; the desulfurization and denitrification assembly comprises a liquid storage tank, a liquid supply pump, a liquid supply pipe and a plurality of partition plates; the filter screen is located above the partition plate, an air inlet pipe is arranged on the shell in a penetrating mode, the air inlet pipe is located below the partition plate, an air outlet pipe is arranged on the shell in a communicating mode, and the air outlet pipe is located above the filter screen. According to the device, flue gas and a desulfurization and denitrification agent are in contact for multiple times, the flowing time of the flue gas in the shell can be prolonged through the S-shaped channel, then the contact time of the flue gas and the desulfurization and denitrification agent is prolonged, the flue gas and the desulfurization and denitrification agent are subjected to full contact reaction, and the flue gas desulfurization and denitrification effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas treatment, and in particular to a flue gas desulfurization, denitrification and dust removal device. Background Art

[0002] A large amount of flue gas is generated during the cement production process. The flue gas contains dust, sulfur dioxide, nitrogen oxides and other substances that pollute the environment. The flue gas needs to be purified before discharge. When the existing desulfurization, denitrification and dust removal equipment is in use, the flue gas is not in sufficient contact with the desulfurization and denitrification agents, resulting in poor flue gas desulfurization and denitrification effects. Summary of the invention

[0003] The purpose of the embodiment of the present application is to provide a flue gas desulfurization, denitration and dust removal device, which can solve the technical problem that when the existing desulfurization, denitration and dust removal device is in use, the flue gas and the desulfurization and denitration agent are not in sufficient contact, resulting in poor flue gas desulfurization and denitration effects.

[0004] The embodiment of the present application provides a flue gas desulfurization, denitrification and dust removal device, including a shell, a desulfurization and denitrification component and a filter screen;

[0005] The desulfurization and denitrification assembly includes a liquid storage tank, a liquid supply pump, a liquid supply pipe and a plurality of partitions, the liquid supply pipe and the partition are fixedly arranged on the inner wall of the shell, a plurality of the partitions are combined to form a serpentine channel, the partition is hollow, and the partition is connected to the liquid supply pipe, a plurality of first atomizing nozzles are arranged on the partition, the liquid storage tank and the liquid supply pump are arranged outside the shell, the liquid inlet end of the liquid supply pump is connected to the liquid storage tank, and the liquid outlet end of the liquid supply pump is connected to the liquid supply pipe;

[0006] The filter is located above the partition, an air inlet pipe is provided through the shell, the air inlet pipe is located below the partition, an air outlet pipe is provided in communication with the shell, and the air outlet pipe is located above the filter.

[0007] It also includes a cleaning component, which includes a motor, a rotating shaft and a cleaning brush. The rotating shaft rotates through the filter screen through a bearing, and the cleaning brush is closely arranged at the lower end of the filter screen. The motor drives the cleaning brush to rotate through the rotating shaft.

[0008] Wherein, the upper end of the liquid supply pipe is connected to a second atomizing nozzle.

[0009] Wherein, the partition is arranged inclined.

[0010] Wherein, a drain pipe is connected to the bottom of the shell, and a valve is arranged on the drain pipe.

[0011] Wherein, a supporting leg is fixedly provided at the lower end of the shell.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a flue gas desulfurization, denitrification and dust removal device. When in use, the liquid supply pump is turned on to pump the desulfurization and denitrification agent in the liquid storage tank into the liquid supply pipe, and then flow into the partition, and then sprayed out from the first atomizing nozzle, and the desulfurization and denitrification agent droplets then drip and gather at the bottom end of the shell. After the liquid level of the desulfurization and denitrification agent is higher than the air outlet of the air inlet pipe, the flue gas is transported to the shell through the air inlet pipe. The flue gas first directly contacts the desulfurization and denitrification agent at the bottom end of the shell, and then the flue gas rises and flows through the serpentine channel. At this time, the flue gas continues to contact the atomized desulfurization and denitrification agent, and then the flue gas is filtered and dust-removed by the filter net and discharged from the shell through the air outlet pipe; the device allows the flue gas to contact the desulfurization and denitrification agent for multiple times, and the serpentine channel can prolong the flow time of the flue gas in the shell, thereby prolonging the contact time of the flue gas with the desulfurization and denitrification agent, so that the flue gas and the desulfurization and denitrification agent are fully contacted and reacted, thereby improving the flue gas desulfurization and denitrification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure in some embodiments of the present application;

[0016] Figure 2 It is a schematic diagram of the overall structure in some embodiments of the present application.

[0017] The reference numerals are:

[0018] 1. Shell; 11. Air inlet pipe; 12. Air outlet pipe; 13. Liquid discharge pipe; 14. Valve; 15. Support leg;

[0019] 2. Desulfurization and denitrification components; 21. Liquid storage tank; 22. Liquid supply pump; 23. Liquid supply pipe; 24. Baffle; 25. Serpentine channel; 26. First atomizing nozzle; 27. Second atomizing nozzle;

[0020] 3. Filter;

[0021] 4. Cleaning assembly; 41. Motor; 42. Rotating shaft; 43. Cleaning brush. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] like Figure 1 and 2As shown, the embodiment of the present application provides a flue gas desulfurization, denitrification and dust removal device, including a housing 1, a desulfurization and denitrification component 2 and a filter 3;

[0029] The desulfurization and denitrification component 2 includes a liquid storage tank 21, a liquid supply pump 22, a liquid supply pipe 23 and a plurality of partitions 24. The liquid supply pipe 23 and the partition 24 are fixedly arranged on the inner wall of the shell 1. The plurality of partitions 24 are combined to form a serpentine channel 25. The partition 24 is hollow and communicates with the liquid supply pipe 23. The partition 24 is provided with a plurality of first atomizing nozzles 26. The liquid storage tank 21 and the liquid supply pump 22 are both arranged outside the shell 1. The liquid inlet end of the liquid supply pump 22 is connected to the liquid storage tank 21, and the liquid outlet end of the liquid supply pump 22 is connected to the liquid supply pipe 23.

[0030] The filter screen 3 is located above the partition 24 , an air inlet pipe 11 is provided through the shell 1 and is located below the partition 24 , an air outlet pipe 12 is provided in communication with the shell 1 and is located above the filter screen 3 .

[0031] When in use, the liquid supply pump 22 is turned on to pump the desulfurization and denitrification agent in the liquid storage tank 21 into the liquid supply pipe 23, and then flows into the partition 24, and then is sprayed out from the first atomizing nozzle 26. The desulfurization and denitrification agent droplets then drip and gather at the bottom end of the shell 1. After the liquid level of the desulfurization and denitrification agent is higher than the outlet of the air inlet pipe 11, the flue gas is transported to the inside of the shell 1 through the air inlet pipe 11. The flue gas first directly contacts the desulfurization and denitrification agent at the bottom end of the shell 1, and then the flue gas rises and flows through the serpentine channel 25. At this time, the flue gas continues to contact the atomized desulfurization and denitrification agent, and then the flue gas is filtered and dust-removed by the filter 3 and discharged from the shell 1 through the outlet pipe 12; the device allows the flue gas to contact the desulfurization and denitrification agent multiple times, and the serpentine channel 25 can prolong the flow time of the flue gas in the shell 1, thereby prolonging the contact time of the flue gas with the desulfurization and denitrification agent, so that the flue gas and the desulfurization and denitrification agent are fully contacted and reacted, thereby improving the flue gas desulfurization and denitrification effect.

[0032] like Figure 1 As shown, in this embodiment, a cleaning component 4 is also included. The cleaning component 4 includes a motor 41, a rotating shaft 42 and a cleaning brush 43. The rotating shaft 42 rotates through the filter 3 through a bearing, and the cleaning brush 43 is arranged at the lower end of the filter 3. The motor 41 drives the cleaning brush 43 to rotate through the rotating shaft 42. When in use, the motor 41 is turned on to drive the rotating shaft 42 to rotate, and the rotating shaft 42 drives the cleaning brush 43 to rotate, and the cleaning brush 43 brushes and cleans the filter 3, thereby preventing dust impurities in the flue gas from clogging the filter 3 and ensuring the filtering efficiency.

[0033] like Figure 1As shown, in this embodiment, the upper end of the liquid supply pipe 23 is connected to a second atomizing nozzle 27; when in use, the dust impurities swept off by the cleaning brush 43 fall onto the partition 24, and the liquid supply pump 22 is turned on to pump the desulfurization and denitrification agent in the liquid storage tank 21 into the liquid supply pipe 23, and then flow into the partition 24, and then sprayed out from the second atomizing nozzle 27 to take away the dust impurities on the partition 24, thereby preventing the dust impurities from accumulating on the partition 24 and causing blockage.

[0034] like Figure 1 As shown, in this embodiment, the partition 24 is arranged at an angle; the inclined partition 24 is conducive to the desulfurization and denitrification agent droplets flowing to the inner bottom end of the shell 1.

[0035] like Figure 1 As shown, in this embodiment, a drain pipe 13 is connected to the bottom of the shell 1, and a valve 14 is provided on the drain pipe 13; when in use, after the flue gas desulfurization, denitrification and dust removal are completed, the valve 14 is opened to discharge the waste liquid from the shell 1 through the drain pipe 13.

[0036] like Figure 1 As shown, in this embodiment, a support leg 15 is fixedly provided at the lower end of the shell 1; the support leg 15 supports and protects the shell 1, thereby improving the stability in use.

[0037] Working principle: When the flue gas desulfurization, denitrification and dust removal device provided by the present application is in use, the liquid supply pump 22 is turned on to pump the desulfurization and denitrification agent in the liquid storage tank 21 into the liquid supply pipe 23, and then flows into the partition 24, and then sprayed out from the first atomizing nozzle 26. The desulfurization and denitrification agent droplets then drip and gather at the bottom end of the shell 1. After the liquid level of the desulfurization and denitrification agent is higher than the air outlet of the air inlet pipe 11, the flue gas is transported to the inside of the shell 1 through the air inlet pipe 11. The flue gas first directly contacts the desulfurization and denitrification agent at the bottom end of the shell 1, and then the flue gas rises and flows through the serpentine channel 25. At this time The flue gas continues to contact with the atomized desulfurization and denitrification agent, and then the flue gas is filtered and dust-removed by the filter 3 and discharged from the shell 1 through the exhaust pipe 12; at the same time, the motor 41 is turned on to drive the rotating shaft 42 to rotate, and the rotating shaft 42 drives the cleaning brush 43 to rotate, and the cleaning brush 43 brushes and cleans the filter 3, and the dust impurities swept off by the cleaning brush 43 fall on the partition 24, and the desulfurization and denitrification agent is sprayed from the second atomizing nozzle 27 to take away the dust impurities on the partition 24; when the flue gas desulfurization, denitrification and dust removal are completed, the valve 14 is opened to discharge the waste liquid from the shell 1 through the drain pipe 13.

[0038] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flue gas desulfurization, denitrification and dust removal device, characterized in that: It comprises a housing (1), a desulfurization and denitrification component (2) and a filter screen (3); The desulfurization and denitrification component (2) comprises a liquid storage tank (21), a liquid supply pump (22), a liquid supply pipe (23) and a plurality of partitions (24); the liquid supply pipe (23) and the partition (24) are both fixedly arranged on the inner wall of the shell (1); a plurality of the partitions (24) are combined to form a serpentine channel (25); the partition (24) is hollow and communicates with the liquid supply pipe (23); a plurality of first atomizing nozzles (26) are arranged on the partition (24); the liquid storage tank (21) and the liquid supply pump (22) are both arranged outside the shell (1); the liquid inlet end of the liquid supply pump (22) is connected to the liquid storage tank (21), and the liquid outlet end of the liquid supply pump (22) is connected to the liquid supply pipe (23); The filter screen (3) is located above the partition (24); an air inlet pipe (11) is provided through the shell (1); the air inlet pipe (11) is located below the partition (24); an air outlet pipe (12) is provided in communication with the shell (1); the air outlet pipe (12) is located above the filter screen (3).

2. The flue gas desulfurization, denitrification and dust removal device according to claim 1 is characterized in that: The cleaning assembly (4) further comprises a cleaning component (4), the cleaning component (4) comprising a motor (41), a rotating shaft (42) and a cleaning brush (43), the rotating shaft (42) rotating through the filter screen (3) via a bearing, the cleaning brush (43) being arranged in close contact with the lower end of the filter screen (3), and the motor (41) driving the cleaning brush (43) to rotate via the rotating shaft (42).

3. The flue gas desulfurization, denitrification and dust removal device according to claim 1 is characterized in that: The upper end of the liquid supply pipe (23) is connected to a second atomizing nozzle (27).

4. The flue gas desulfurization, denitrification and dust removal device according to claim 1 is characterized in that: The partition (24) is arranged obliquely.

5. The flue gas desulfurization, denitrification and dust removal device according to claim 1 is characterized in that: The bottom of the housing (1) is connected to a drain pipe (13), and a valve (14) is provided on the drain pipe (13).

6. The flue gas desulfurization, denitrification and dust removal device according to claim 1 is characterized in that: A supporting leg (15) is fixedly provided at the lower end of the housing (1).

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