Reaction tower for desulfurization and denitrification environment-friendly flue gas treatment

Abstract

The utility model relates to the technical field of reaction towers, and discloses a desulfurization and denitrification environment-friendly flue gas treatment reaction tower which comprises a reaction tower body, a waste gas inlet pipe arranged on the left side of the reaction tower body, a drainage pipe arranged on the right side of the reaction tower body, and a supporting base fixedly mounted at the bottom of the reaction tower body, flue gas treatment and precipitation separation mechanisms are arranged inside and on the right side of the reaction tower body, and a smoke discharge mechanism is arranged at the top of the reaction tower body. According to the environment-friendly desulfurization and denitrification flue gas treatment reaction tower, an absorbent is sprayed through an absorbent spray head, clear water is sprayed through a water spray head, waste gas can be desulfurized and denitrified through the reaction tower body, through a first driving motor, a scraping plate can do reciprocating motion and do semi-ring motion on the top of a semi-ring filter plate, and the semi-ring filter plate is prevented from being blocked; the reaction water is filtered by utilizing the semi-ring filter plate, so that precipitates can be efficiently filtered and separated, the precipitates can be more quickly collected due to faster filtering and separation, and the treatment efficiency of the precipitates generated by the reaction water is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction towers, in particular to a reaction tower for desulfurization and denitration environmentally friendly flue gas treatment. Background Art

[0002] The desulfurization and denitrification reaction tower is a tower-type equipment used for desulfurization and denitrification of industrial waste gas. Its function is to absorb and decompose sulfides and nitrates in flue gas by adding absorbents, thereby reducing pollution to the environment.

[0003] According to the description of a reaction tower for desulfurization and denitration environmentally friendly flue gas treatment disclosed on the patent website (authorization announcement number: CN110433594 B), "The present invention discloses a reaction tower for desulfurization and denitration environmentally friendly flue gas treatment, which specifically relates to the technical field of spray towers, including a reaction tower body, a first partition plate is fixedly arranged at the bottom of the reaction tower body, a connecting pipe is fixedly arranged on the surface of the first partition plate, an air inlet pipe is fixedly connected to the surface of the reaction tower body on one side of the first partition plate, a second partition plate is arranged on the top of the first partition plate, the second partition plate is fixedly connected to the reaction tower body, an air guide pipe is fixedly arranged between the first partition plate and the second partition plate, and a reaction spray head is fixedly arranged on the bottom end surface of the second partition plate; the bottom of the reaction tower body is filled with lime water. The present invention facilitates the flow of exhaust gas through the connecting pipe and the air guide pipe, facilitates the oxidation reaction of exhaust gas with lime water, and utilizes the filler layer to increase the contact surface between water and gas, so that the exhaust gas reaction effect is good, facilitates the subsequent degradation and purification of the gas, and improves the gas treatment effect."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the invention transports waste gas through the provided air intake pipe, causes the waste gas to react with lime water, and then sprays clean water to achieve desulfurization and denitrification of the waste gas. The precipitate produced by the reaction of calcium hydroxide and carbon dioxide is treated by precipitation. However, in actual use, the method of treating the precipitate produced by the reaction by precipitation is too inefficient, and it is necessary to wait for the water in the pool to stand still, which makes it difficult to separate the precipitate efficiently. Therefore, it is necessary to improve a reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment, comprising a reaction tower body, a waste gas inlet pipe is arranged on the left side of the reaction tower body, a drain pipe is arranged on the right side of the reaction tower body, a support base is fixedly installed on the bottom of the reaction tower body, flue gas treatment and sedimentation separation mechanisms are arranged inside and on the right side of the reaction tower body, and a smoke exhaust mechanism is arranged on the top of the reaction tower body.

[0008] The flue gas treatment and sedimentation separation mechanism comprises a desulfurization and denitrification component and a filtration and separation component, and the filtration and separation component is arranged on the right side of the desulfurization and denitrification component.

[0009] Preferably, the desulfurization and denitrification component includes a reaction water discharge pipe, which is fixedly installed on the right side of the reaction tower body, and a water pumping and supplying device is fixedly installed on the right side of the reaction water discharge pipe. Partition plate 1, partition plate 2, partition plate 3, a filter layer and a demister are fixedly installed inside the reaction tower body, an absorbent nozzle is fixedly installed at the bottom of partition plate 2, and a gas pipe 1 is fixedly installed inside partition plate 1 and partition plate 2, and a feed pipe is fixedly installed at the bottom of partition plate 1. A water spray head is fixedly installed at the bottom of partition plate 3, and a gas pipe 2 is fixedly installed on the top of partition plate 3, so as to facilitate the desulfurization and denitrification of exhaust gas through the desulfurization and denitrification component.

[0010] Preferably, the filtering and separation component includes a water pool, which is arranged at the bottom of the water pumping and water delivery device, a semi-ring filter plate is fixedly installed inside the water pool, a rotating shaft is rotatably installed inside the water pool, a scraper is fixedly installed outside the rotating shaft, a connecting shaft is fixedly installed on the right side of the rotating shaft, an ordinary bevel gear 1 is fixedly installed outside the connecting shaft, a motor 1 is fixedly installed on the right side of the water pool, and a residual bevel gear is fixedly installed on the top of the transmission shaft of the motor 1, so as to facilitate filtering the reaction precipitate through the filtering and separation component.

[0011] Preferably, holes are provided at corresponding positions of the semi-annular filter plate and the rotating shaft, and the rotating shaft is rotatably installed inside the hole provided inside the semi-annular filter plate, so as to prevent the semi-annular filter plate from being blocked by a scraper.

[0012] Preferably, two ordinary bevel gears are provided, and the two ordinary bevel gears are symmetrically distributed on the top of the residual bevel gear to facilitate the reciprocating rotation of the scraper.

[0013] Preferably, the smoke exhaust mechanism includes a smoke exhaust pipe, the smoke exhaust pipe is fixedly installed on the top of the reaction tower body, a filter plate is fixedly installed inside the smoke exhaust pipe, a connecting rotating shaft is rotatably installed inside the filter plate, a fan blade is fixedly installed on the bottom of the connecting rotating shaft, a scraper strip is fixedly installed on the outside of the connecting rotating shaft, an ordinary bevel gear 2 is fixedly installed on the top of the connecting rotating shaft, a motor 2 is fixedly installed on the outside of the smoke exhaust pipe, and an ordinary bevel gear 3 is fixedly installed on the right side of the transmission shaft of the motor 2, so as to facilitate smoke exhaust through the smoke exhaust mechanism.

[0014] Preferably, the second common bevel gear is meshed with the third common bevel gear, and the bottom of the scraper strip is rotatably mounted on the top of the filter plate, so as to prevent debris from affecting smoke exhaust.

[0015] Compared with the prior art, the utility model provides a reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment, which has the following beneficial effects:

[0016] 1. The desulfurization and denitration environmentally friendly flue gas treatment reaction tower has a flue gas treatment and sedimentation separation mechanism. During use, the absorbent is sprayed through the absorbent nozzle and the water spray head sprays clean water, so that the reaction tower body can desulfurize and denitrify the exhaust gas. The scraper can move back and forth through the driving motor 1, and perform a semi-circular motion on the top of the semi-circular filter plate to prevent the semi-circular filter plate from being blocked. The semi-circular filter plate is then used to filter the reaction water, so that the precipitate can be filtered and separated efficiently. Faster filtration and separation can make it be collected faster, thereby improving the efficiency of treating the precipitate generated by the reaction water.

[0017] 2. The reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment, through the smoke exhaust mechanism, exhausts smoke through the smoke exhaust pipe during use. The filter plate can prevent external impurities from entering the smoke exhaust pipe. The fan blades can rotate to assist smoke exhaust. The rotating scraper strips can prevent impurities on the top of the filter plate from affecting smoke exhaust, thereby realizing the function of discharging smoke after desulfurization and denitrification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the appearance and structure of the smoke treatment and sedimentation separation mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional appearance structure of the desulfurization and denitrification component of the utility model;

[0022] Figure 4 This is a schematic diagram of the appearance structure of the filter separation component of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional appearance of the smoke exhaust mechanism of the utility model.

[0024] In the figure: 1. reaction tower body; 2. flue gas treatment and precipitation separation mechanism; 21. desulfurization and denitrification components; 211. reaction water discharge pipe; 212. pumping and water supply device; 213. partition plate 1; 214. partition plate 2; 215. partition plate 3; 216. filter layer; 217. demister; 218. absorbent nozzle; 219. gas pipeline 1; 2110. feed pipe; 2111. water nozzle; 2112. gas pipeline 2; 22. filter separation components; 221. Water tank; 222. Semi-ring filter plate; 223. Rotating shaft; 224. Scraper; 225. Connecting shaft; 226. Ordinary bevel gear one; 227. Motor one; 228. Residual bevel gear; 3. Smoke exhaust mechanism; 31. Smoke exhaust pipe; 32. Filter plate; 33. Connecting rotating shaft; 34. Fan blade; 35. Scraper; 36. Ordinary bevel gear two; 37. Motor two; 38. Ordinary bevel gear three; 4. Exhaust gas inlet pipe; 5. Drain pipe; 6. Support base. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0027] See also Figure 1-4The utility model provides a technical solution: a reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment, including a reaction tower body 1, a waste gas inlet pipe 4 is arranged on the left side of the reaction tower body 1, a drainage pipe 5 is arranged on the right side of the reaction tower body 1, a support base 6 is fixedly installed on the bottom of the reaction tower body 1, a flue gas treatment and sedimentation separation mechanism 2 is arranged inside and on the right side of the reaction tower body 1, and a smoke exhaust mechanism 3 is arranged on the top of the reaction tower body 1.

[0028] The flue gas treatment and sedimentation separation mechanism 2 comprises a desulfurization and denitration component 21 and a filtration and separation component 22 . The filtration and separation component 22 is arranged on the right side of the desulfurization and denitration component 21 .

[0029] Furthermore, the desulfurization and denitrification component 21 includes a reaction water discharge pipe 211, which is fixedly installed on the right side of the reaction tower body 1, and a water pumping and supplying device 212 is fixedly installed on the right side of the reaction water discharge pipe 211. Partition plate 1 213, partition plate 214, partition plate 3 215, filter layer 216 and demister 217 are fixedly installed inside the reaction tower body 1, an absorbent nozzle 218 is fixedly installed at the bottom of partition plate 214, and a gas pipe 1 219 is fixedly installed inside the partition plates 1 213 and 214, and a feed pipe 2110 is fixedly installed at the bottom of the partition plate 1 213. A water spray head 2111 is fixedly installed at the bottom of the partition plate 3 215, and a gas pipe 2 2112 is fixedly installed on the top of the partition plate 3 215, so as to facilitate the desulfurization and denitrification of the exhaust gas through the desulfurization and denitrification component 21.

[0030] Furthermore, the filtering and separating component 22 includes a water pool 221, which is arranged at the bottom of the water pumping and water supply device 212. A semi-ring filter plate 222 is fixedly installed inside the water pool 221, a rotating shaft 223 is rotatably installed inside the water pool 221, a scraper 224 is fixedly installed outside the rotating shaft 223, a connecting shaft 225 is fixedly installed on the right side of the rotating shaft 223, an ordinary bevel gear 226 is fixedly installed outside the connecting shaft 225, a motor 227 is fixedly installed on the right side of the water pool 221, and a residual bevel gear 228 is fixedly installed on the top of the transmission shaft of the motor 227, so as to facilitate filtering the reaction impurities through the filtering and separating component 22.

[0031] Furthermore, holes are provided at corresponding positions of the semi-annular filter plate 222 and the rotating shaft 223 , and the rotating shaft 223 is rotatably installed inside the hole provided inside the semi-annular filter plate 222 , so as to prevent the semi-annular filter plate 222 from being blocked by the scraper 224 .

[0032] Furthermore, two common bevel gears 226 are provided, and the two common bevel gears 226 are symmetrically distributed on the top of the residual bevel gear 228, so as to facilitate the reciprocating rotation of the scraper 224. Example

[0033] See also Figure 5In combination with the first embodiment, it is further obtained that the smoke exhaust mechanism 3 includes a smoke exhaust pipe 31, the smoke exhaust pipe 31 is fixedly installed on the top of the reaction tower body 1, a filter plate 32 is fixedly installed inside the smoke exhaust pipe 31, a connecting rotating shaft 33 is rotatably installed inside the filter plate 32, a fan blade 34 is fixedly installed at the bottom of the connecting rotating shaft 33, a scraper strip 35 is fixedly installed outside the connecting rotating shaft 33, a common bevel gear 2 36 is fixedly installed on the top of the connecting rotating shaft 33, a motor 2 37 is fixedly installed outside the smoke exhaust pipe 31, and a common bevel gear 3 38 is fixedly installed on the right side of the transmission shaft of the motor 2 37, so as to facilitate smoke exhaust through the smoke exhaust mechanism 3.

[0034] Furthermore, the common bevel gear 2 36 is meshed with the common bevel gear 38 , and the bottom of the scraper strip 35 is rotatably mounted on the top of the filter plate 32 , so as to prevent debris from affecting smoke exhaust.

[0035] In actual operation, when the device is used, the waste gas is transported through the waste gas inlet pipe 4. After the waste gas is transported into the interior of the reaction tower body 1, the absorbent is sprayed through the absorbent nozzle 218. The waste gas fused with the absorbent enters the bottom of the reaction tower body 1 through the feed pipe 2110. After the reaction, the waste gas passes through the gas pipe 1 219 and enters the top of the partition plate 2 214. After being cleaned by the water spray head 2111, the waste gas passes through the gas pipe 2 2112 and is processed by the filter layer 216 and the demister 217. It is then discharged through the smoke exhaust pipe 31, driving the motor 2 37 to make the ordinary bevel gear 3 38 drive the ordinary bevel gear 2 36 to rotate. The ordinary bevel gear 2 36 drives the connecting rotating shaft 33 to rotate, so that the fan blades 34 and the scraper strips 35 rotate. The reaction water at the bottom of the reaction tower body 1 is extracted by the water pumping and water supply device 212 and enters the interior of the water pool 221, driving the motor 1 227 to rotate the residual bevel gear 228. During the rotation process, the residual bevel gear 228 will mesh with the two ordinary bevel gears 1 226 in sequence, driving the connecting shaft 225 to rotate forward and reverse, so that the rotating shaft 223 drives the scraper 224 to rotate forward and reverse, and cleans the semi-annular filter plate 222 to avoid clogging of the semi-annular filter plate 222. By filtering through the semi-annular filter plate 222, the sediment in the reaction water can be separated faster.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment, comprising a reaction tower body (1), characterized in that: The left side of the reaction tower body (1) is provided with an exhaust gas inlet pipe (4), the right side of the reaction tower body (1) is provided with a drain pipe (5), the bottom of the reaction tower body (1) is fixedly mounted with a support base (6), the inside and the right side of the reaction tower body (1) are provided with a flue gas treatment and sedimentation separation mechanism (2), and the top of the reaction tower body (1) is provided with a smoke exhaust mechanism (3); The flue gas treatment and sedimentation separation mechanism (2) comprises a desulfurization and denitration component (21) and a filtration and separation component (22), wherein the filtration and separation component (22) is arranged on the right side of the desulfurization and denitration component (21); The desulfurization and denitrification component (21) comprises a reaction water discharge pipe (211), the reaction water discharge pipe (211) is fixedly installed on the right side of the reaction tower body (1), a water pumping and water supply device (212) is fixedly installed on the right side of the reaction water discharge pipe (211), a partition plate 1 (213), a partition plate 2 (214), a partition plate 3 (215), a filter layer (216) and a demister (217) are fixedly installed inside the reaction tower body (1), an absorbent nozzle (218) is fixedly installed at the bottom of the partition plate 2 (214), a gas transmission pipe 1 (219) is fixedly installed inside the partition plate 1 (213) and the partition plate 2 (214), and a feed pipe (2110) is fixedly installed at the bottom of the partition plate 1 (213). A water spray head (2111) is fixedly installed at the bottom of the partition plate 3 (215), and a gas transmission pipe 2 (2112) is fixedly installed at the top of the partition plate 3 (215).

2. A reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment according to claim 1, characterized in that: The filtering and separating component (22) comprises a water pool (221), wherein the water pool (221) is arranged at the bottom of the water pumping and water supply device (212), a semi-ring filter plate (222) is fixedly installed inside the water pool (221), a rotating shaft (223) is rotatably installed inside the water pool (221), a scraper (224) is fixedly installed outside the rotating shaft (223), a connecting shaft (225) is fixedly installed on the right side of the rotating shaft (223), a common bevel gear 1 (226) is fixedly installed outside the connecting shaft (225), a motor 1 (227) is fixedly installed on the right side of the water pool (221), and a residual bevel gear (228) is fixedly installed on the top of the transmission shaft of the motor 1 (227).

3. A reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment according to claim 2, characterized in that: The semi-annular filter plate (222) and the rotating shaft (223) are provided with holes at corresponding positions, and the rotating shaft (223) is rotatably mounted inside the hole provided inside the semi-annular filter plate (222).

4. A reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment according to claim 2, characterized in that: Two common bevel gears (226) are provided, and the two common bevel gears (226) are symmetrically distributed on the top of the residual bevel gear (228).

5. The reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment according to claim 1 is characterized by: The smoke exhaust mechanism (3) comprises a smoke exhaust pipe (31), the smoke exhaust pipe (31) being fixedly mounted on the top of the reaction tower body (1), a filter plate (32) being fixedly mounted inside the smoke exhaust pipe (31), a connecting rotating shaft (33) being rotatably mounted inside the filter plate (32), a fan blade (34) being fixedly mounted on the bottom of the connecting rotating shaft (33), a scraper strip (35) being fixedly mounted on the outside of the connecting rotating shaft (33), a common bevel gear 2 (36) being fixedly mounted on the top of the connecting rotating shaft (33), a motor 2 (37) being fixedly mounted on the outside of the smoke exhaust pipe (31), and a common bevel gear 3 (38) being fixedly mounted on the right side of the transmission shaft of the motor 2 (37).

6. A reaction tower for desulfurization and denitrification environmentally friendly flue gas treatment according to claim 5, characterized in that: The common bevel gear 2 (36) is meshed with the common bevel gear 3 (38), and the bottom of the scraper bar (35) is rotatably mounted on the top of the filter plate (32).

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