Automatic dilution and proportioning device for denitration agent

Abstract

The utility model relates to a kind of denitration agent automatic dilution proportioning device, belong to environmental protection equipment technical field, including installation bottom plate, the top of installation bottom plate is fixedly installed with support rod, the top of support rod is fixedly installed with installation top plate, the top of installation top plate is fixedly installed with the storage tank of two in quantity, the bottom of installation top plate is fixedly installed with mixed jar, the bottom of mixed jar is provided with combined denitration component, the bottom of storage tank is fixedly installed with output pipe, the output pipe is connected with mixed jar.The denitration agent automatic dilution proportioning device, by setting denitration pipe and make-up pipe in the bottom of mixed jar, by setting denitration pump and make-up pump in the top of installation bottom plate, by denitration pump, denitration agent is transported to spray tower, when smoke concentration suddenly increases in spray tower, by make-up pump, denitration agent is transported to spray tower, secondary treatment is carried out to flue gas, avoid incomplete flue gas treatment.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, specifically to an automatic dilution and proportioning device for denitrification agents. Background Technology

[0002] Denitrification agents are chemical substances or materials used to remove nitrogen oxides from flue gas. They are widely used in the denitrification treatment of flue gas from industrial boilers, power plants, waste incineration plants, cement plants, etc., to reduce air pollution and meet environmental emission standards. Nitrogen oxides mainly include nitric oxide and nitrogen dioxide, which are one of the main components of air pollution and can lead to problems such as acid rain and photochemical smog. Denitrification agents convert nitrogen oxides into harmless nitrogen gas and water through chemical reactions, thereby reducing nitrogen oxide emissions from flue gas.

[0003] An automatic dilution and mixing device is needed during the use of denitrification agents to generate denitrification agents of appropriate concentrations for flue gas denitrification treatment. Utility model patent CN215139387U discloses an automatic dilution, mixing, and dosing device for low-temperature oxidative denitrification agents, comprising: a shell with a dilution water inlet pipe on the top side and a mother liquor inlet pipe and a reagent outlet pipe on the bottom side; and a mixer, located inside the shell, including a stirring tank and a distribution pipe. The stirring tank is located on the bottom side of the shell and communicates with the mother liquor inlet pipe, while the distribution pipe is located on the top side of the stirring tank and communicates with it. The distribution pipe has evenly distributed water passages on its sidewalls. This utility model's automatic dilution, mixing, and dosing device for low-temperature oxidative denitrification agents inputs dilution water through the dilution water inlet pipe. The denitrification agent mother liquor is first shaken evenly in the stirring tank and then input into the shell through the distribution pipe, thereby ensuring uniform mixing of the mixture inside the shell and improving the deoxygenation efficiency of the oxidative denitrification agent.

[0004] This automatic dilution, mixing and dosing device for denitrification agent mixes an appropriate concentration of denitrification agent according to the flue gas concentration to treat the flue gas for denitrification. However, when the flue gas concentration increases, the concentration of denitrification agent does not increase in time, resulting in incomplete flue gas treatment. Therefore, an automatic dilution and mixing device for denitrification agent is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an automatic dilution and proportioning device for denitrification agents, which has advantages such as preventing incomplete denitrification of flue gas and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic dilution and proportioning device for denitrification agent includes a mounting base plate, a support rod fixedly mounted on the top of the mounting base plate, a mounting top plate fixedly mounted on the top of the support rod, two storage tanks fixedly mounted on the top of the mounting top plate, a mixing tank fixedly mounted on the bottom of the mounting top plate, a combined denitrification assembly provided at the bottom of the mixing tank, an output pipe fixedly mounted on the bottom of the storage tank, the output pipe communicating with the mixing tank, and an output valve fixedly mounted on the surface of the output pipe.

[0008] The combined denitrification assembly includes a denitrification pipe fixedly installed at the bottom of the mixing tank, a replenishment pipe fixedly installed at the bottom of the mixing tank, a denitrification pump fixedly installed at the top of the mounting base plate, a replenishment pump fixedly installed at the top of the mounting base plate, the denitrification pipe connected to the input end of the denitrification pump, the replenishment pipe connected to the input end of the replenishment pump, a denitrification connecting pipe fixedly installed at the output end of the denitrification pump, and a replenishment connecting pipe fixedly installed at the output end of the replenishment pump.

[0009] Furthermore, a denitrification valve is fixedly installed on the surface of the denitrification pipe, a replenishment valve is fixedly installed on the surface of the replenishment pipe, and a feed pipe is fixedly installed on the top of the storage tank.

[0010] Furthermore, a concentration meter is fixedly installed on the inner wall of the mixing tank, and a stirring shaft is rotatably installed on the inner bottom wall of the mixing tank.

[0011] Furthermore, stirring blades are fixedly installed on the surface of the stirring shaft, and a stirring motor is fixedly installed on the top of the mixing tank, with the output shaft of the stirring motor fixedly connected to the top end of the stirring shaft.

[0012] Furthermore, a spray tower is fixedly installed on the top of the mounting base plate, a main spray pipe is fixedly installed on the inner wall of the spray tower, the main spray pipe is connected to the output end of the denitrification connecting pipe, and a main spray head is fixedly installed at the bottom of the main spray pipe.

[0013] Furthermore, a supplementary spray pipe is fixedly installed on the inner wall of the spray tower. The supplementary spray pipe is located above the main spray pipe and is connected to the output end of the supplementary connecting pipe. A supplementary nozzle is fixedly installed at the bottom of the supplementary spray pipe.

[0014] Furthermore, an air inlet pipe is fixedly installed on one side of the spray tower, and the air inlet pipe is located below the main spray pipe.

[0015] Furthermore, an air outlet pipe is fixedly installed on the top of the spray tower, and support legs are fixedly installed on the bottom of the mounting base plate.

[0016] Compared with the prior art, this utility model provides an automatic dilution and proportioning device for denitrification agents, which has the following beneficial effects:

[0017] 1. This automatic dilution and proportioning device for denitrification agents, by installing denitrification pipes and replenishment pipes at the bottom of the mixing tank, and by installing denitrification pumps and replenishment pumps at the top of the mounting base plate, delivers the denitrification agent to the spray tower via the denitrification pump. When the flue gas concentration in the spray tower suddenly increases, the replenishment pump delivers the denitrification agent to the spray tower for secondary treatment of the flue gas, avoiding incomplete flue gas treatment. This solves the problem of common automatic dilution and proportioning devices for denitrification agents failing to increase the denitrification agent concentration in time when the flue gas concentration increases, resulting in incomplete flue gas treatment.

[0018] 2. This automatic denitrification agent dilution and proportioning device injects high-concentration denitrification agent and diluent into two storage tanks, and then delivers the high-concentration denitrification agent and diluent to a mixing tank through an output pipe to dilute the high-concentration denitrification agent. The dilution ratio is adjusted by adjusting the flow rate of the output pipe through two output valves to prepare denitrification agents of different concentrations, and the concentration is detected by a concentration meter. Attached Figure Description

[0019] Figure 1 This is a front sectional view of the structure of this utility model;

[0020] Figure 2 This is a front view of the structure of this utility model;

[0021] Figure 3 This is a front sectional view of the mixing tank of this utility model;

[0022] Figure 4 This is a three-dimensional view of the mixing tank of this utility model.

[0023] In the diagram: 1. Mounting base plate; 2. Support rod; 3. Mounting top plate; 4. Storage tank; 5. Mixing tank; 6. Output pipe; 61. Output valve; 7. Denitrification pipe; 71. Denitrification valve; 8. Replenishment pipe; 81. Replenishment valve; 9. Denitrification pump; 10. Replenishment pump; 11. Denitrification connecting pipe; 12. Replenishment connecting pipe; 13. Feed pipe; 14. Concentration meter; 15. Stirring shaft; 16. Stirring blades; 17. Stirring motor; 18. Spray tower; 19. Main spray pipe; 20. Main nozzle; 21. Replenishment spray pipe; 22. Replenishment nozzle; 23. Air inlet pipe; 24. Air outlet pipe; 25. Support leg. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 4An automatic dilution and proportioning device for denitrification agent in this embodiment includes a mounting base plate 1, a support rod 2 fixedly mounted on the top of the mounting base plate 1, a mounting top plate 3 fixedly mounted on the top of the support rod 2, two storage tanks 4 fixedly mounted on the top of the mounting top plate 3, a mixing tank 5 fixedly mounted on the bottom of the mounting top plate 3, a combined denitrification assembly provided at the bottom of the mixing tank 5, an output pipe 6 fixedly mounted on the bottom of the storage tank 4, the output pipe 6 being connected to the mixing tank 5, and an output valve 61 fixedly mounted on the surface of the output pipe 6.

[0026] Specifically, high-concentration denitrification agent and diluent are injected into two storage tanks 4. Output valve 61 is a flow regulating valve. According to the flue gas concentration, the opening and closing ratio of the two output valves 61 is adjusted to inject the appropriate ratio of high-concentration denitrification agent and diluent into the mixing tank 5 for mixing and dilution.

[0027] The combined denitrification assembly includes a denitrification pipe 7 fixedly installed at the bottom of the mixing tank 5, a replenishment pipe 8 fixedly installed at the bottom of the mixing tank 5, a denitrification pump 9 fixedly installed at the top of the mounting base plate 1, a replenishment pump 10 fixedly installed at the top of the mounting base plate 1, the denitrification pipe 7 being connected to the input end of the denitrification pump 9, the replenishment pipe 8 being connected to the input end of the replenishment pump 10, a denitrification connecting pipe 11 fixedly installed at the output end of the denitrification pump 9, and a replenishment connecting pipe 12 fixedly installed at the output end of the replenishment pump 10.

[0028] Specifically, the denitrification pump 9 outputs the diluted denitrification agent for use to denitrify the flue gas. When the flue gas concentration suddenly increases, resulting in insufficient denitrification agent concentration output by the denitrification pump 9, the supplementary pump 10 is turned on to output the denitrification agent for secondary denitrification of the flue gas to prevent incomplete denitrification.

[0029] Secondly, a denitrification valve 71 is fixedly installed on the surface of the denitrification pipe 7, a replenishment valve 81 is fixedly installed on the surface of the replenishment pipe 8, and a feed pipe 13 is fixedly installed on the top of the storage tank 4. During normal use, the replenishment valve 81 is closed; when the flue gas concentration increases, the replenishment valve 81 is opened for secondary denitrification.

[0030] Please see Figure 3 and Figure 4 In this embodiment, a concentration meter 14 is fixedly installed on the inner side wall of the mixing tank 5, and a stirring shaft 15 is rotatably installed on the inner bottom wall of the mixing tank 5. The concentration of the denitrification agent is detected by the concentration meter 14.

[0031] The stirring shaft 15 has stirring blades 16 fixedly mounted on its surface, and the mixing tank 5 has a stirring motor 17 fixedly mounted on its top. The output shaft of the stirring motor 17 is fixedly connected to the top end of the stirring shaft 15. The stirring motor 17 drives the stirring shaft 15 to rotate, which in turn drives the stirring blades 16 to rotate, thereby stirring and mixing the denitrification agent and the diluent.

[0032] Please see Figure 1 and Figure 2 In this embodiment, a spray tower 18 is fixedly installed on the top of the mounting base plate 1, a main spray pipe 19 is fixedly installed on the inner side wall of the spray tower 18, the main spray pipe 19 is connected to the output end of the denitrification connecting pipe 11, and a main nozzle 20 is fixedly installed at the bottom of the main spray pipe 19.

[0033] The inner wall of the spray tower 18 is fixedly installed with a supplementary spray pipe 21, which is located above the main spray pipe 19. The supplementary spray pipe 21 is connected to the output end of the supplementary connecting pipe 12, and a supplementary nozzle 22 is fixedly installed at the bottom of the supplementary spray pipe 21.

[0034] Meanwhile, an air inlet pipe 23 is fixedly installed on one side of the spray tower 18, and the air inlet pipe 23 is located below the main spray pipe 19.

[0035] The spray tower 18 is equipped with an exhaust pipe 24 fixedly installed on its top, and a support leg 25 is fixedly installed on the bottom of the mounting base plate 1. Flue gas enters the spray tower 18 through the intake pipe 23, and the main nozzle 20 sprays the denitrification agent into the flue gas. When the flue gas concentration increases, the supplementary nozzle 22 sprays the denitrification agent into the flue gas to perform secondary denitrification of the flue gas.

[0036] The working principle of the above embodiment is as follows: high-concentration denitrification agent and diluent are injected into two storage tanks 4. The output valve 61 is a flow regulating valve. According to the flue gas concentration, the opening and closing ratio of the two output valves 61 is adjusted to inject the appropriate ratio of high-concentration denitrification agent and diluent into the mixing tank 5 for mixing and dilution. The denitrification pump 9 outputs the diluted denitrification agent for use to denitrify the flue gas. When the flue gas concentration suddenly increases, resulting in insufficient denitrification agent concentration output by the denitrification pump 9, the supplementary pump 10 is turned on to output the denitrification agent for secondary denitrification of the flue gas.

[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0038] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] 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. An automatic dilution and proportioning device for denitrification agent, comprising a mounting base plate (1), characterized in that: A support rod (2) is fixedly installed on the top of the mounting base plate (1), a mounting top plate (3) is fixedly installed on the top of the support rod (2), two storage tanks (4) are fixedly installed on the top of the mounting top plate (3), a mixing tank (5) is fixedly installed on the bottom of the mounting top plate (3), a combined denitrification assembly is provided at the bottom of the mixing tank (5), an output pipe (6) is fixedly installed at the bottom of the storage tank (4), the output pipe (6) is connected to the mixing tank (5), and an output valve (61) is fixedly installed on the surface of the output pipe (6). The combined denitrification assembly includes a denitrification pipe (7) fixedly installed at the bottom of the mixing tank (5), a replenishment pipe (8) fixedly installed at the bottom of the mixing tank (5), a denitrification pump (9) fixedly installed at the top of the mounting base plate (1), a replenishment pump (10) fixedly installed at the top of the mounting base plate (1), the denitrification pipe (7) being connected to the input end of the denitrification pump (9), the replenishment pipe (8) being connected to the input end of the replenishment pump (10), a denitrification connecting pipe (11) fixedly installed at the output end of the denitrification pump (9), and a replenishment connecting pipe (12) fixedly installed at the output end of the replenishment pump (10).

2. The automatic dilution and proportioning device for denitrification agent according to claim 1, characterized in that: A denitrification valve (71) is fixedly installed on the surface of the denitrification pipe (7), a replenishment valve (81) is fixedly installed on the surface of the replenishment pipe (8), and a feed pipe (13) is fixedly installed on the top of the storage tank (4).

3. The automatic dilution and proportioning device for denitrification agent according to claim 1, characterized in that: A concentration meter (14) is fixedly installed on the inner side wall of the mixing tank (5), and a stirring shaft (15) is rotatably installed on the inner bottom wall of the mixing tank (5).

4. The automatic dilution and proportioning device for denitrification agent according to claim 3, characterized in that: The stirring shaft (15) is fixedly mounted with stirring blades (16), and the mixing tank (5) is fixedly mounted with a stirring motor (17). The output shaft of the stirring motor (17) is fixedly connected to the top of the stirring shaft (15).

5. The automatic dilution and proportioning device for denitrification agent according to claim 1, characterized in that: A spray tower (18) is fixedly installed on the top of the mounting base plate (1), and a main spray pipe (19) is fixedly installed on the inner side wall of the spray tower (18). The main spray pipe (19) is connected to the output end of the denitrification connecting pipe (11), and a main nozzle (20) is fixedly installed at the bottom of the main spray pipe (19).

6. The automatic dilution and proportioning device for denitrification agent according to claim 5, characterized in that: A supplementary spray pipe (21) is fixedly installed on the inner wall of the spray tower (18). The supplementary spray pipe (21) is located above the main spray pipe (19). The supplementary spray pipe (21) is connected to the output end of the supplementary connecting pipe (12). A supplementary nozzle (22) is fixedly installed at the bottom of the supplementary spray pipe (21).

7. The automatic dilution and proportioning device for denitrification agent according to claim 6, characterized in that: An air inlet pipe (23) is fixedly installed on one side of the spray tower (18), and the air inlet pipe (23) is located below the main spray pipe (19).

8. The automatic dilution and proportioning device for denitrification agent according to claim 7, characterized in that: The top of the spray tower (18) is fixedly equipped with an air outlet pipe (24), and the bottom of the mounting base plate (1) is fixedly equipped with a support leg (25).

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