Anti-corrosion desulfurizing tower

Abstract

The utility model provides an anti-corrosion desulfurizing tower, which relates to the technical field of desulfurizing tower corrosion prevention and comprises a desulfurizing tower body and a washing device arranged on one side of the desulfurizing tower body, a floating component is arranged in the middle of an inner cavity of the desulfurizing tower body, and a monitoring mechanism is arranged in an inner cavity of the floating component. In the washing liquid circulation process, the floating assembly integrally drives the monitoring mechanism to float on the upper layer of alkaline washing liquid, the alkaline content of the recycled alkaline washing liquid is monitored in real time, and a worker can observe the alkaline content of the alkaline washing liquid through data transmitted by the monitoring host; when the alkaline content of the washing liquid is reduced to be insufficient to continuously support the desulfurization work of the waste gas, reactants and the washing liquid can be discharged in time, the washing liquid can be replaced in time, the residence time of the waste gas in the tank body is shortened, the desulfurization speed of the waste gas is increased, and the service life of an anti-corrosion coating on the inner wall of the tank body is further prolonged; the anticorrosion maintenance period of the tank body is prolonged and the anticorrosion cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of desulfurization tower anticorrosion, and more specifically, particularly relates to an anticorrosion desulfurization tower. Background Art

[0002] The combustion of combustibles in the burner (i.e. boiler) produces coal gas, which is one of the main emissions of thermal power plants. Since coal gas usually contains a large amount of nitrogen oxides NOX, sulfides SO2 and dust, on the one hand, it will cause highly corrosive acid rain, and on the other hand, the emitted dust will cause air pollution and harm health. Therefore, coal gas must be desulfurized, denitrated and dusted before it is discharged;

[0003] The desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas. When the desulfurization tower is working, a certain amount of alkaline detergent is injected into the tank through the water inlet, and then the alkaline detergent is transported to the upper spray head through the washing device to spray it out, so that the detergent combines with the waste gas, and then the waste gas is desulfurized. The reactants will form a paste-like precipitation in the lower layer of the tank, and the upper layer is a clear liquid, which needs to be discharged into the washing device for recycling. However, with the long-term recycling, the alkalinity of the washing liquid in the tank will gradually decrease, and the desulfurization effect of the waste gas will be greatly reduced. The waste gas that is not treated in time will corrode the anti-corrosion coating on the inner wall of the tank, shortening its service life, shortening the anti-corrosion maintenance cycle of the tank, and increasing the anti-corrosion cost. At the same time, the water replacement method is to manually detect whether the reactants and liquid levels in the tank meet the emission standards at any time for discharge. It mainly relies on manual labor and cannot make good use of the washing liquid, resulting in unnecessary waste.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an anti-corrosion desulfurization tower is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a corrosion-resistant desulfurization tower to solve the above problems.

[0006] The purpose and effect of the anti-corrosion desulfurization tower of the utility model are achieved by the following specific technical means:

[0007] An anti-corrosion desulfurization tower comprises a desulfurization tower body and a washing device arranged on one side of the desulfurization tower body, a floating assembly is arranged in the middle of the inner cavity of the desulfurization tower body, and a monitoring mechanism is arranged in the inner cavity of the floating assembly;

[0008] The floating assembly includes a protective shell and four sliding limit plates symmetrically arranged in pairs, a semicircular floating ball is fixedly arranged at both ends of the protective shell, a T-shaped sliding rod is rotatably arranged at the middle of the outer side of the semicircular floating ball, and the other end of the T-shaped sliding rod is slidably arranged between two sliding limit plates near its ends;

[0009] The monitoring mechanism comprises a monitoring host fixedly arranged in the middle of the inner cavity of the protective shell, and a detection rod is electrically connected to the middle of the lower end of the monitoring host.

[0010] Furthermore, the desulfurization tower body includes a tank body, and an outer wall surface of the tank body is provided with a smoke inlet and a water inlet connected to the inner cavity of the tank body.

[0011] Furthermore, the washing device comprises a filter box connected to the inner cavity of the tank body, a water pump matching its use is fixedly provided on the upper surface of the filter box, and a water outlet of the water pump is provided with a spray connection pipe connected to the upper end of the inner cavity of the tank body.

[0012] Furthermore, a T-shaped hollow rod is fixedly provided in the middle of the inner cavity of the T-shaped sliding rod, and the sliding limit plate is fixedly provided in the middle of the inner wall surface of the tank body.

[0013] Furthermore, the axis line of the protective shell and the axis line of the water inlet are perpendicular to each other in a plane.

[0014] Furthermore, the height of the lower end of the sliding limit plate is higher than the height of the lower end of the detection rod from the bottom surface of the tank body.

[0015] Furthermore, the protective shell, the semicircular float and the T-shaped slide bar are preferably made of acid- and alkali-resistant plastic material.

[0016] Furthermore, the T-shaped hollow rod is preferably made of acid and alkali resistant stainless steel.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. In the utility model, during the circulation of the washing liquid, the floating component as a whole drives the monitoring mechanism to float on the upper layer of the alkaline washing liquid, and the alkaline content of the circulating alkaline washing liquid is monitored in real time. The staff can observe the alkaline content of the alkaline washing liquid by monitoring the data transmitted by the host. When the alkaline content of the washing liquid drops to a level that is insufficient to continue to support the desulfurization of the exhaust gas, the reactants and the washing liquid can be discharged in time, and the washing liquid can be replaced in time, thereby reducing the residence time of the exhaust gas in the tank body, increasing the desulfurization speed of the exhaust gas, further increasing the service life of the anti-corrosion coating on the inner wall of the tank body, extending the anti-corrosion maintenance cycle of the tank body, and reducing the anti-corrosion cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a sectional view of the tank body of the utility model.

[0021] Figure 3 It is a schematic diagram of the floating assembly of the utility model.

[0022] Figure 4 It is a schematic diagram of the expansion of the floating assembly of the utility model.

[0023] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0024] 1. Desulfurization tower body; 2. Scrubbing device; 3. Floating assembly; 4. Monitoring mechanism; 101. Tank body; 102. Water inlet; 103. Smoke inlet; 201. Filter box; 202. Water pump; 203. Spray connecting pipe; 301. Protective shell; 302. Semicircular float; 303. T-shaped sliding rod; 304. T-shaped hollow rod; 305. Sliding limit plate; 401. Monitoring host; 402. Detection rod. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example:

[0029] As attached Figure 1 To Attachment Figure 4As shown: an anti-corrosion desulfurization tower, comprising a desulfurization tower body 1 and a washing device 2 arranged on one side of the desulfurization tower body 1. A floating component 3 is arranged in the middle of the inner cavity of the desulfurization tower body 1, and a monitoring mechanism 4 is arranged in the inner cavity of the floating component 3;

[0030] The floating assembly 3 includes a protective shell 301 and four sliding limit plates 305 symmetrically arranged in pairs. Semicircular floating balls 302 are fixedly arranged at both ends of the protective shell 301. A T-shaped sliding rod 303 is rotatably arranged in the middle of the outer side of the semicircular floating ball 302. The other end of the T-shaped sliding rod 303 is slidably arranged between two sliding limit plates 305 near its ends.

[0031] The monitoring mechanism 4 includes a monitoring host 401 fixedly arranged in the middle of the inner cavity of the protective shell 301 , and a detection rod 402 is electrically connected to the middle of the lower end of the monitoring host 401 .

[0032] The desulfurization tower body 1 comprises a tank body 101 , and an outer wall surface of the tank body 101 is provided with a smoke inlet 103 and a water inlet 102 which are connected to the inner cavity of the tank body 101 .

[0033] When a certain amount of alkaline cleaning liquid enters the tank body 101 through the water inlet 102, the water inlet 102 stops water inlet, and the water pump 202 pumps the clear liquid in the tank body 101 into the filter box 201 for filtration. At the same time, the clear liquid is transported to the spray head connected to the spray connecting pipe 203 through the water pump 202, so that the alkaline cleaning liquid and the exhaust gas entering through the smoke inlet 103 undergo a chemical neutralization reaction, and the reaction is circulated in this way. During the circulation process, the floating component 3 as a whole drives the monitoring mechanism 4 to float on the upper layer of the alkaline cleaning liquid, and the alkaline content of the circulating alkaline cleaning liquid is monitored in real time.

[0034] As attached Figure 1 and attached Figure 2 As shown, in some embodiments, the washing device 2 includes a filter box 201 connected to the inner cavity of the tank body 101, and a water pump 202 matching its use is fixedly provided on the upper surface of the filter box 201. The water outlet of the water pump 202 is provided with a spray connecting pipe 203 connected to the upper end of the inner cavity of the tank body 101. The clear liquid in the tank body 101 is pumped into the filter box 201 for filtration through the water pump 202, and at the same time, the clear liquid is transported to the spray head connected to the spray connecting pipe 203 through the water pump 202, so as to realize the recycling of the alkaline washing liquid.

[0035] As attached Figure 4 As shown, in some embodiments, a T-shaped hollow rod 304 is fixedly provided in the middle of the inner cavity of the T-shaped slide bar 303, and a sliding limit plate 305 is fixedly provided in the middle of the inner wall surface of the tank body 101. The T-shaped hollow rod 304 is used to enhance the deformation resistance of the T-shaped slide bar 303 under the impact of water flow.

[0036] As attached Figure 2As shown, in some embodiments, the axis line of the protective shell 301 and the axis line of the water inlet 102 are perpendicular to each other in the plane. When the washing liquid enters the inner cavity of the tank body 101 through the water inlet 102 and the water flow impacts the detection rod 402, the protective shell 301 rotates about the axis line of the T-shaped sliding bar 303, thereby preventing the detection rod 402 from being deformed by the impact and affecting subsequent detection work.

[0037] As attached Figure 2 As shown, in some embodiments, the height of the lower end of the sliding limit plate 305 is higher than the height of the lower end of the detection rod 402 from the bottom surface of the tank body 101, so as to prevent the liquid level from dropping too low and the lower end of the detection rod 402 from contacting the bottom surface of the tank body 101 and causing damage to the detection rod 402.

[0038] As attached Figure 2 To Attachment Figure 4 As shown, in some embodiments, the protective shell 301, the semicircular float 302 and the T-shaped slide bar 303 are preferably made of acid- and alkali-resistant plastic material, which can better adapt to the acid- and alkali environment in the tank body, and the plastic material is more conducive to floating on the upper layer of the washing liquid.

[0039] As attached Figure 4 As shown, in some embodiments, the T-shaped hollow rod 304 is preferably made of acid and alkali resistant stainless steel, which has good deformation resistance, and after the sliding end of the T-shaped slide rod 303 is worn, it can still cooperate with the monitoring mechanism 4 to perform monitoring work in an acid and alkali environment. The hollow structure of the T-shaped hollow rod 304 facilitates its better floating in the liquid, and cooperates with the semicircular float 302 and the protective shell 301 to realize floating detection of the monitoring mechanism 4 as a whole.

[0040] The specific usage and function of this embodiment are as follows:

[0041] First, after a certain amount of alkaline cleaning liquid enters the tank body 101 through the water inlet 102, the water inlet 102 is interrupted, and the water pump 202 pumps the clear liquid in the tank body 101 into the filter box 201 for filtration. At the same time, the clear liquid is transported to the spray head connected to the spray connecting pipe 203 through the water pump 202, so that the alkaline cleaning liquid and the exhaust gas entering through the smoke inlet 103 undergo a chemical neutralization reaction, and the reaction is circulated in this way. During the circulation process, the floating component 3 as a whole drives the monitoring mechanism 4 to float on the upper layer of the alkaline cleaning liquid, and the detection rod 402 remains vertical due to its own weight. In a straight-to-opposite state, the alkaline content of the circulating alkaline washing liquid is monitored in real time. The staff can observe the alkaline content of the alkaline washing liquid by monitoring the data transmitted by the host 401. When the alkaline content of the washing liquid drops to a level that is insufficient to continue to support the desulfurization of the exhaust gas, the reactants and washing liquid in the tank body 101 can be discharged in time, and the washing liquid can be replaced in time, thereby reducing the residence time of the exhaust gas in the tank body 101, increasing the desulfurization speed of the exhaust gas, further increasing the service life of the anti-corrosion coating on the inner wall of the tank body, extending the anti-corrosion maintenance cycle of the tank body, and reducing the anti-corrosion cost.

[0042] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A corrosion-resistant desulfurization tower, comprising a desulfurization tower body (1) and a washing device (2) arranged on one side of the desulfurization tower body (1), characterized in that: A floating assembly (3) is provided in the middle of the inner cavity of the desulfurization tower body (1), and a monitoring mechanism (4) is provided in the inner cavity of the floating assembly (3); The floating assembly (3) comprises a protective shell (301) and four sliding limit plates (305) symmetrically arranged in pairs, a semicircular floating ball (302) is fixedly arranged at both left and right ends of the protective shell (301), a T-shaped sliding rod (303) is rotatably arranged in the middle of the outer side of the semicircular floating ball (302), and the other end of the T-shaped sliding rod (303) is slidably arranged between two sliding limit plates (305) near its ends; The monitoring mechanism (4) comprises a monitoring host (401) fixedly arranged in the middle of the inner cavity of the protective shell (301), and a detection rod (402) is electrically connected to the middle of the lower end of the monitoring host (401).

2. The anti-corrosion desulfurization tower according to claim 1, characterized in that: The desulfurization tower body (1) comprises a tank body (101), and an outer wall surface of the tank body (101) is provided with a smoke inlet (103) and a water inlet (102) connected to the inner cavity of the tank body (101).

3. The anti-corrosion desulfurization tower according to claim 2, characterized in that: The washing device (2) comprises a filter box (201) connected to the inner cavity of the tank body (101), a water pump (202) matched with the filter box (201) being fixedly provided on the upper surface thereof, and a spray connection pipe (203) connected to the upper end of the inner cavity of the tank body (101) being provided at the water outlet of the water pump (202).

4. The anti-corrosion desulfurization tower according to claim 1, characterized in that: A T-shaped hollow rod (304) is fixedly arranged in the middle of the inner cavity of the T-shaped sliding rod (303), and the sliding limit plate (305) is fixedly arranged in the middle of the inner wall surface of the tank body (101).

5. The anti-corrosion desulfurization tower according to claim 1, characterized in that: The axis center line of the protective shell (301) and the axis center line of the water inlet (102) are perpendicular to each other in a plane.

6. The anti-corrosion desulfurization tower according to claim 1, characterized in that: The height of the lower end of the sliding limit plate (305) is higher than the height of the lower end of the detection rod (402) from the bottom surface of the tank body (101).

7. The anti-corrosion desulfurization tower according to claim 1, characterized in that: The protective shell (301), the semicircular floating ball (302) and the T-shaped sliding rod (303) are preferably made of acid- and alkali-resistant plastic material.

8. The anti-corrosion desulfurization tower according to claim 4, characterized in that: The T-shaped hollow rod (304) is preferably made of acid and alkali resistant stainless steel.

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