Sulfur and nitrate integrated deacidification and dust removal flue gas purification equipment

Abstract

The utility model relates to the technical field of flue gas desulfurization, denitrification and purification, and discloses sulfur and nitrate integrated deacidification and dust removal flue gas purification equipment which comprises a gas flow assembly and a purification assembly, the airflow assembly comprises a shell, and a spiral airflow channel is formed in the inner wall of the shell; the air inlet pipe A is mounted on one side of the shell, is communicated with the interior of the shell and corresponds to the upper end of the air flow channel; the worm-shaped chamber is fixedly arranged at the bottom of the shell and is communicated with the shell; the exhaust pipe A is mounted at an outlet of the worm-shaped chamber; the purification assembly comprises a central pipe, the upper end and the lower end of the central pipe are of sealed structures, and the central pipe is inserted into the shell. According to the sulfur and nitrate integrated deacidification and dust removal flue gas purification equipment, the gas flow assembly and the purification assembly are arranged, flue gas can advance in the spiral direction when passing through the gas flow channel, NOX generates HNO3 to be dissolved in water under the cooling and pressurizing conditions, SO2 generates H2SO4 to be dissolved in water, and therefore the flue gas treatment effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization and denitration purification, in particular to a sulfur-nitrate integrated deacidification and dust removal flue gas purification device. Background Art

[0002] With the development of my country's economy and society, the country has attached more and more importance to the environment. Among them, nitrogen oxides and sulfur dioxide are the main emissions in industrial production tail gas, which are extremely harmful to the environment. At present, the main SOx removal technologies include ammonia method, lime-gypsum method, sodium alkali method, etc., and NOx removal technologies include dry method, wet method, adsorption method and high-energy plasma oxidation method. The main dry process includes selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR) and SCR-SNCR mixed reduction method, which are the most widely used methods in industrialization. These methods either have high construction costs and complex equipment, or high operating costs and high material consumption, or low removal efficiency and serious secondary pollution.

[0003] The existing technology uses high pressure to promote the contact between flue gas and condensed water to achieve dissolution and separation. However, this method requires the gas to rotate with strong centrifugal force. Traditional equipment is difficult to meet this requirement. In addition, how to make the flue gas fully combine with oxygen and cold water when rotating is a technical problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a sulfur-nitrate integrated deacidification and dust removal flue gas purification equipment, which has the advantages of high-speed centrifugal flue gas and complete combination with water vapor, solving the problem that the prior equipment cannot achieve full combination.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sulfur-nitrate integrated deacidification and dust removal flue gas purification equipment, comprising an airflow component and a purification component; the airflow component comprises an outer shell, the inner wall of which is provided with a spiral airflow channel; an air inlet pipe A, which is installed on one side of the outer shell and communicated with the interior thereof, corresponding to the upper end of the airflow channel; a volute chamber, which is fixedly installed at the bottom of the outer shell and communicated with it; an exhaust pipe A, which is installed at the outlet position of the volute chamber; the purification component comprises a central tube, both upper and lower ends of which are sealed structures, inserted in the outer shell, and the connection positions of the upper and lower ends with the outer shell are also sealed, and a plurality of air holes are opened on the outer wall of the central tube; a spiral tube, which is inside the central tube, and the upper and lower ends of the spiral tube respectively penetrate the central tube and are outside it; an air inlet pipe B, which is inserted into the upper end of the central tube and communicated with the interior thereof; an atomizing pipe, which is transversely fixed on the air inlet pipe B and communicated with the interior thereof; an exhaust pipe B, which is inserted into the bottom end of the central tube and communicated with the interior thereof, and the lower end of the exhaust pipe B extends to the outside.

[0008] In some embodiments, a lower end of the air flow passage protrudes from the housing and extends into the volute chamber.

[0009] In some embodiments, the outlet position of the volute chamber corresponds to the direction of the lower end of the air flow channel, and the outlet position of the volute chamber is tangent to itself.

[0010] In some embodiments, the central tube is disposed concentrically with the outer shell, and an outer wall of the central tube does not contact an outer end of the air flow channel.

[0011] In some embodiments, the upper end of the central tube protrudes out of the outer shell, and the lower end is located above the bottom of the outer shell.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a sulfur-nitrogen integrated deacidification and dust removal flue gas purification device, which has the following beneficial effects:

[0014] 1. The sulfur-nitrate integrated deacidification and dust removal flue gas purification equipment is provided with an airflow component and a purification component. The flue gas can move in a spiral direction when passing through the airflow channel, and the flue gas of the intake pipe A is blown out in a pressurized manner. The flue gas can quickly rotate centrifugally in the outer shell, and then the exhaust pipe A has a larger diameter and can be used to discharge the treated flue gas. Oxygen can be introduced into the intake pipe B, and the atomizing pipe is responsible for filling water vapor. The spiral tube needs to use a coolant to cool the inside of the central tube. After the oxygen containing water vapor is cooled, the water vapor appears in the form of water mist, and after filling, it passes through the air holes and contacts with the high-speed flowing flue gas, so that pollutants such as SOx, NOx, and dust are attached to the inner wall of the cyclone chamber, and together with the condensed water, gray water is formed and enters the lower part. Under the conditions of cooling and pressurization, NOX generates HNO3 and dissolves in water, and SO2 generates H2SO4 and dissolves in water, thereby achieving the effect of treating flue gas.

[0015] 2. The sulfur-nitrate integrated deacidification and dust removal flue gas purification equipment is equipped with a volute chamber, which can not only discharge flue gas but also collect wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front view of the structure of the utility model;

[0018] Figure 3 This is a top view of the structure of the utility model;

[0019] Figure 4 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 5 This is a structural breakdown diagram of the utility model;

[0021] Figure 6 This is the internal structure diagram of the central tube of the utility model.

[0022] In the figure:

[0023] 1. Shell;

[0024] 2. Airflow channel;

[0025] 3. Intake pipe A;

[0026] 4. Snail chamber;

[0027] 5. Exhaust pipe A;

[0028] 6. Center tube;

[0029] 7. Stomata;

[0030] 8. Spiral tube;

[0031] 9. Trachea B;

[0032] 10. Atomizer tube;

[0033] 11. Exhaust pipe B. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] In the related art, it is difficult to make the gas rotate and move forward in the processing chamber, and the contact efficiency between the flue gas and oxygen and moisture is low.

[0039] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a sulfur-nitrate integrated deacidification and dust removal flue gas purification equipment. When it is needed, the flue gas can advance in a spiral direction when passing through the air flow channel 2, and the flue gas of the intake pipe A3 is blown out in a pressurized manner. The flue gas can quickly rotate centrifugally in the outer shell 1, and then the exhaust pipe A5 has a larger diameter and can be used to discharge the treated flue gas. Oxygen can be introduced into the intake pipe B9, and the atomization pipe 10 is responsible for filling with water vapor, and the spiral tube 8 needs to use coolant to cool the interior of the central tube 6. After the oxygen containing water vapor is cooled, the water vapor appears in the form of water mist, and after filling, it passes through the air hole 7 and contacts with the high-speed flowing flue gas, so that pollutants such as SOx, NOx, and dust are attached to the inner wall of the cyclone chamber, and together with the condensed water, gray water is formed and enters the lower part. Under cooling and pressurization conditions, NOX generates HNO3 and dissolves in water, and SO2 generates H2SO4 and dissolves in water.

[0040] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0041] Combination Figure 1-Figure 6 , the embodiment of the present application provides a sulfur-nitrate integrated deacidification and dust removal flue gas purification device, including an airflow component and a purification component;

[0042] The airflow component comprises a shell 1, the inner wall of which is provided with a spiral airflow channel 2;

[0043] An air inlet pipe A3, mounted on one side of the housing 1 and communicating with the interior thereof, corresponding to the upper end of the air flow passage 2;

[0044] The volute chamber 4 is fixedly mounted on the bottom of the housing 1 and communicated with the housing;

[0045] Exhaust pipe A5, installed at the outlet of the volute chamber 4;

[0046] The purification component includes a central tube 6, both upper and lower ends of which are sealed structures, plugged into the housing 1, and the connection positions between the upper and lower ends and the housing 1 are also sealed. The outer wall of the central tube 6 is provided with a plurality of air holes 7;

[0047] The spiral tube 8 is located inside the central tube 6, and the upper and lower ends of the spiral tube 8 respectively penetrate the central tube 6 and are located outside the central tube 6;

[0048] The air inlet pipe B9 is plugged into the upper end of the central pipe 6 and communicated with the interior thereof;

[0049] Atomizing pipe 10 is transversely fixed on the air inlet pipe B9 and communicated with the interior thereof;

[0050] The exhaust pipe B11 is inserted into the bottom end of the central pipe 6 and communicated with the interior thereof, and the lower end of the exhaust pipe B11 extends to the outside.

[0051] In this embodiment: the spiral airflow channel 2 is two raised strips welded on the inner wall of the outer shell 1, the air inlet pipe A3 is connected to the high-pressure flue gas output end, the exhaust pipe A5 is connected to the flue gas end after collection and treatment, and the air holes 7 are distributed in an array on the central tube 6, the spiral tube 8 needs to be connected to the coolant so that the coolant rotates in the central tube 6, the air inlet pipe B9 is connected to the pure oxygen pump, and the atomization pipe 10 is connected to the water vapor atomization equipment.

[0052] In some embodiments, the lower end of the air flow channel 2 protrudes from the housing 1 and extends into the volute chamber 4 .

[0053] Specifically, it is convenient to collect the treated flue gas so that the pressure of the treated flue gas is gradually reduced.

[0054] In some embodiments, the outlet position of the volute chamber 4 corresponds to the direction of the lower end of the air flow channel 2, and the outlet position of the volute chamber 4 is tangent to itself.

[0055] Specifically, the high-speed flue gas after treatment can be smoothly discharged from the outlet position of the volute chamber 4.

[0056] In some embodiments, the central tube 6 is disposed concentrically with the outer shell 1 , and the outer wall of the central tube 6 does not contact the outer end of the air flow channel 2 .

[0057] Specifically, the oxygen and water vapor exhausted from the central tube 6 can be combined with the flue gas flowing in the outer shell 1 .

[0058] In some embodiments, the upper end of the central tube 6 protrudes out of the outer shell 1 , and the lower end is located above the bottom of the outer shell 1 .

[0059] Specifically, pure oxygen is first combined with the flue gas from above.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0061] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfur-nitrogen integrated deacidification and dust removal flue gas purification equipment, Features: including an airflow component and a purification component; The airflow component comprises a shell (1), and the inner wall of the shell (1) is provided with a spiral airflow channel (2); An air inlet pipe A (3), mounted on one side of the housing (1) and in communication with the interior thereof, corresponding to the upper end of the air flow passage (2); A volute chamber (4) is fixedly mounted on the bottom of the housing (1) and communicated with the housing (1); An exhaust pipe A (5) installed at the outlet of the volute chamber (4); The purification component comprises a central tube (6), the upper and lower ends of which are both sealed structures, inserted into the outer shell (1), and the connection positions between the upper and lower ends and the outer shell (1) are also sealed, and the outer wall of the central tube (6) is provided with a plurality of air holes (7); The spiral tube (8) is located inside the central tube (6), and the upper and lower ends of the spiral tube (8) respectively penetrate the central tube (6) and are located outside the central tube (6); An air inlet pipe B (9) is plugged into the upper end of the central pipe (6) and communicated with the interior thereof; an atomizing pipe (10) which is transversely fixed on the air inlet pipe B (9) and communicated with the interior thereof; An exhaust pipe B (11) is inserted into the bottom end of the central pipe (6) and communicated with the interior thereof, and the lower end of the exhaust pipe B (11) extends to the outside.

2. The sulfur-nitrogen integrated deacidification and dust removal flue gas purification equipment according to claim 1 is characterized in that: The lower end of the air flow channel (2) protrudes from the outer shell (1) and extends into the volute chamber (4).

3. The sulfur-nitrogen integrated deacidification and dust removal flue gas purification equipment according to claim 2 is characterized in that: The outlet position of the volute chamber (4) corresponds to the direction of the lower end of the air flow channel (2), and the outlet position of the volute chamber (4) is tangent to itself.

4. The sulfur-nitrogen integrated deacidification and dust removal flue gas purification equipment according to claim 1 is characterized in that: The central tube (6) is arranged concentrically with the outer shell (1), and the outer wall of the central tube (6) does not contact the outer end of the air flow channel (2).

5. The sulfur-nitrogen integrated deacidification and dust removal flue gas purification equipment according to claim 1 is characterized in that: The upper end of the central tube (6) protrudes outside the outer shell (1), and the lower end is located above the bottom of the outer shell (1).

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