Boiler waste gas treatment device

Abstract

The utility model belongs to the technical field of boiler waste gas treatment, and particularly relates to a boiler waste gas treatment device which comprises a barrel, an alkaline solution is stored in the barrel, a barrel cover is fixedly mounted at the top of the barrel, a discharge pipe is fixedly communicated with the bottom of the barrel, and a valve is mounted at the bottom end of the discharge pipe. A stirring paddle is arranged in the barrel body, the top end of the stirring paddle is rotationally connected with a barrel cover through a bearing, and a motor is fixed to the top of the barrel cover. By arranging the stirring paddle and the motor, gas-liquid contact and reactant mixing can be optimized, the absorption efficiency of sulfur dioxide in an alkaline solution can be effectively improved, and by arranging the grating plate, the short circuit phenomenon caused by concentrated rising of gas can be avoided, so that the gas is uniformly dispersed in the solution, escape of unreacted sulfur dioxide gas is reduced, and the service life of the sulfur dioxide is prolonged. Therefore, the gas-liquid contact area can be increased, the gas retention time can be prolonged, and the sulfur dioxide treatment effect can be better improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler waste gas treatment technical field, concretely is a boiler waste gas treatment device. BACKGROUND

[0002] Some coal-fired boilers when in use, the waste gas produced will contain a large amount of sulfur dioxide, and sulfur dioxide will stimulate the respiratory system and accelerate the formation of acid rain, corrosion of buildings and destruction of the ecosystem, so the sulfur dioxide needs to be treated, at present, the waste gas produced by the coal-fired boiler is generally first treated by a bag dust collector, and then the dust-removed waste gas is introduced into a container containing an alkaline solution to absorb and treat the sulfur dioxide, but the container containing the alkaline solution has a single functionality and only has a containing function, so that the sulfur dioxide absorption and treatment effect is not good, and therefore the boiler waste gas treatment device is proposed to solve the above problems. SUMMARY

[0003] (I) technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a boiler waste gas treatment device to solve the problems in the above background art.

[0005] (II) technical scheme

[0006] The utility model discloses a boiler waste gas treatment device to solve the problems in the above background art.

[0007] A boiler waste gas treatment device, including the cylinder, the inside storage of the cylinder has alkaline solution, the top of the cylinder is fixedly installed with the cylinder cover, the bottom of the cylinder is fixedly connected with the discharge pipe, the bottom of the discharge pipe is installed with the valve, the inside of the cylinder is provided with the stirring paddle, the top of the stirring paddle is rotatably connected with the cylinder cover through the bearing, the top of the cylinder cover is fixed with the motor, the output shaft of the motor is fixedly connected with the top of the stirring paddle, the inside of the cylinder is fixedly provided with the grating plate, the grating plate is arranged in the alkaline solution, the stirring paddle penetrates the middle part of the grating plate, one end of the cylinder cover penetrates and is fixed with the air inlet pipe, the bottom of the air inlet pipe passes through the grating plate and is arranged in the alkaline solution, the other end of the cylinder cover penetrates and is fixed with the air outlet pipe.

[0008] Further, the surface of the cylinder is sleeved with a support seat, and universal self-locking wheels are installed at the bottom of the four corners of the support seat.

[0009] Further, the top of the air inlet pipe is fixed with a first flange plate, and the top of the air outlet pipe is fixed with a second flange plate.

[0010] Further, the top of the cylinder cover penetrates and is fixed with a liquid injection pipe, and a pipe cover is threadedly connected to the top of the liquid injection pipe.

[0011] Further, the bottom end of the barrel is funnel-shaped, and the alkaline solution is a calcium hydroxide solution.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the boiler waste gas treatment device has the following beneficial effects:

[0014] The utility model discloses, through setting up stirring paddle and motor, can optimize gas -liquid contact and reactant mixing, can effectively promote the absorption efficiency of sulfur dioxide in alkaline solution, through setting up grating board can avoid the " short circuit " phenomenon caused by gas concentrated rising, make gas evenly dispersed in solution, reduce the unreacted sulfur dioxide gas escape, thereby can increase gas -liquid contact area, prolong gas residence time, so can better improve the processing effect of sulfur dioxide. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the utility model barrel cover overhead structure schematic diagram;

[0017] Figure 3 It is the utility model Figure 2 It is the utility model along A-A place cross section structure schematic diagram;

[0018] Figure 4 It is the utility model grating board structure schematic diagram;

[0019] Figure 5 It is the utility model stirring paddle structure schematic diagram.

[0020] In the drawing: 1, barrel;2, barrel cover;3, discharge pipe;4, valve;5, stirring paddle;6, motor;7, grating board;8, air inlet pipe;9, air outlet pipe;10, support seat;11, universal self-locking wheel;12, first flange plate;13, second flange plate;14, liquid injection pipe;15, pipe cover. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] EMBODIMENT

[0023] AsFigures 1-5 As shown in the utility model one embodiment proposes a kind of boiler exhaust treatment device, including cylinder 1, the inside storage of cylinder 1 has alkaline solution, the bottom end of cylinder 1 is funnel-shaped, and alkaline solution is calcium hydroxide solution, the top of cylinder 1 is fixedly installed with cylinder cover 2, the bottom of cylinder 1 is fixedly communicated with discharge pipe 3, the bottom end of discharge pipe 3 is installed with valve 4, the inside of cylinder 1 is provided with stirring paddle 5, the top of stirring paddle 5 is rotatably connected with cylinder cover 2 by bearing, the top of cylinder cover 2 is fixed with motor 6, the output shaft of motor 6 is fixedly connected with the top of stirring paddle 5, the inside of cylinder 1 is fixed with grating plate 7, grating plate 7 is arranged in alkaline solution, stirring paddle 5 penetrates the middle part of grating plate 7, one end of cylinder cover 2 penetrates and is fixed with air inlet pipe 8, the bottom end of air inlet pipe 8 passes through grating plate 7 and is arranged in alkaline solution, the other end of cylinder cover 2 penetrates and is fixed with air outlet pipe 9.

[0024] Use will be, the exhaust gas generated when burning coal-fired boiler, first dust removal treatment is carried out, then the exhaust gas after dust removal treatment is connected with air inlet pipe 8 by pipeline, exhaust gas containing sulfur dioxide gas can be entered into calcium hydroxide solution in cylinder 1, motor 6 is started, motor 6 can drive stirring paddle 5 to rotate, stirring paddle 5 can stir calcium hydroxide solution, so that the gas-liquid contact and reactant mixing can be optimized, by setting grating plate 7, the "short circuit" phenomenon caused by gas concentrated rising can be avoided, so that the gas is evenly dispersed in calcium hydroxide solution, the unreacted sulfur dioxide gas is reduced to escape, so that the gas-liquid contact area can be increased, and the gas residence time is prolonged, so that the sulfur dioxide gas can be better absorbed and treated, and the absorbed exhaust gas can be discharged from air outlet pipe 9, and a pipeline can be installed at the port of air outlet pipe 9, so that the absorbed gas can be introduced into subsequent treatment equipment for further treatment, when the calcium hydroxide solution in cylinder 1 is saturated and invalid, valve 4 can be opened to discharge the saturated and invalid calcium hydroxide solution.

[0025] As Figure 1 , Figure 2 and Figure 3 shown, in the embodiment, support seat 10 is fixedly sleeved on the surface of cylinder 1, universal self-locking wheel 11 is installed at the bottom of support seat 10, which is convenient for moving the device, first flange plate 12 is fixedly connected with the top end of air inlet pipe 8, second flange plate 13 is fixedly connected with the top end of air outlet pipe 9, which is convenient for connecting with the exhaust gas conveying pipeline, liquid injection pipe 14 is fixedly connected with the top of cylinder cover 2, pipe cover 15 is threadedly connected with the top end of liquid injection pipe 14, when it is necessary to supplement calcium hydroxide solution into cylinder 1, pipe cover 15 can be unscrewed and added from liquid injection pipe 14.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A boiler exhaust gas treatment device comprising a cylinder (1), characterized in that: The inside of the barrel (1) stores alkaline solution, the top of the barrel (1) is fixedly installed with a barrel cover (2), the bottom of the barrel (1) is fixedly communicated with a discharge pipe (3), the bottom end of the discharge pipe (3) is installed with a valve (4), the inside of the barrel (1) is provided with a stirring paddle (5), the top end of the stirring paddle (5) is rotatably connected with the barrel cover (2) through a bearing, the top of the barrel cover (2) is fixedly provided with a motor (6), the output shaft of the motor (6) is fixedly connected with the top of the stirring paddle (5), the inside of the barrel (1) is fixedly provided with a grid plate (7), the grid plate (7) is arranged in the alkaline solution, the stirring paddle (5) penetrates the middle part of the grid plate (7), one end of the barrel cover (2) penetrates and is fixedly provided with an air inlet pipe (8), the bottom end of the air inlet pipe (8) penetrates the grid plate (7) and is arranged in the alkaline solution, the other end of the barrel cover (2) penetrates and is fixedly provided with an air outlet pipe (9).

2. A boiler flue gas treatment apparatus according to claim 1, characterised in that: The surface of the barrel (1) is sleeved and fixedly provided with a support seat (10), the bottom of the support seat (10) is provided with universal self-locking wheels (11) at four corners.

3. A boiler flue gas treatment apparatus according to claim 1, characterised in that: The top end of the air inlet pipe (8) is fixedly provided with a first flange plate (12), the top end of the air outlet pipe (9) is fixedly provided with a second flange plate (13).

4. A boiler flue gas treatment apparatus according to claim 1, characterised in that: The top of the barrel cover (2) penetrates and is fixedly provided with a liquid injection pipe (14), the top end of the liquid injection pipe (14) is threadedly connected with a pipe cover (15).

5. A boiler flue gas treatment apparatus according to claim 1, characterised in that: The bottom end of the barrel (1) is funnel-shaped, and the alkaline solution is calcium hydroxide solution.

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