Flue gas desulfurization device for limestone production

Abstract

The utility model provides a flue gas desulfurization device for limestone production, which comprises a tower outer shell, a pressure liquid storage tank, a gas inlet and a gas outlet, the tower outer shell is mounted at the upper end of a mounting plate, support legs are fixedly mounted at the lower end of the tower outer shell, staggered partition plates are fixedly mounted in the tower outer shell, and the gas inlet and the gas outlet are communicated with the pressure liquid storage tank. The staggered partition plate is arranged above the air inlet, a first spray head, fan blades, a second spray head, drying filler and an activated carbon porous filter are sequentially arranged above the staggered partition plate, the fan blades are fixedly arranged at the upper end of a rotating rod, the left end of the rotating rod is fixedly connected with the output end of a driving motor, and the right side of the rotating rod is rotationally connected with the inner wall of the tower outer shell. The scraper can be driven by the bottom motor to clean the tower body, so that the operation and desulfurization efficiency is ensured; meanwhile, mixing of flue gas and desulfurization liquid is enhanced through fan blade disturbance, and the desulfurization quality is improved. The staggered partition plates intercept impurities and promote flue gas distribution.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas desulfurization device technical field, especially a kind of flue gas desulfurization device for limestone production. BACKGROUND

[0002] With the increasing importance of global environmental protection, governments of all countries have developed strict atmospheric pollutant emission standards. Sulfur dioxide, as one of the main atmospheric pollutants, its emission control is crucial. In the process of limestone production, a large amount of flue gas containing high concentration will be produced. For example, in the rotary kiln process of limestone calcination to produce lime, due to the possibility of containing sulfur compounds in limestone raw materials, a large amount of flue gas will be released during high-temperature calcination. If these flue gases are not effectively treated and directly discharged, it will cause acid rain, air quality deterioration and a series of environmental problems.

[0003] The prior art discloses an energy-saving limestone and gypsum wet flue gas desulfurization device with application number 202222009734.9, belonging to the technical field of flue gas desulfurization, comprising an absorption tower, an exhaust pipe is arranged at the top end of the absorption tower, a demister is arranged at the inner top of the absorption tower, and a spray layer is arranged at the bottom of the demister. The utility model comprises an absorption tower bottom transmission bin, a first bevel gear, a second bevel gear, a shaft, a stirring rod, stirring blades and a motor to form a stirring mechanism. During use, a group of motors can simultaneously control the rotation of multiple shafts and stirring blades, improving the stirring effect and stirring rate during use, and saving energy. The use of a group of slurry pumps in combination with a pressure tank can simultaneously control the simultaneous spraying of multiple spray layers, which is more practical and convenient to control. However, the existing technology still has the problems of difficult cleaning of the tower body, accumulation of sediments and impurities, affecting operation and desulfurization efficiency, complicated manual cleaning and easy damage to equipment; lack of preliminary treatment of flue gas, impurities affecting desulfurization liquid and spray head, reducing equipment life and desulfurization effect. Therefore, we propose a flue gas desulfurization device for limestone production to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the above problems, the utility model provides a flue gas desulfurization device for limestone production, which can clean the tower body by bottom motor-driven scraper, ensuring operation and desulfurization efficiency; at the same time, fan blade disturbance can enhance the mixing of flue gas and desulfurization liquid, improving desulfurization quality. Interlaced baffle intercepts impurities and promotes flue gas distribution, achieving preliminary treatment.

[0005] To solve the above problems, the technical scheme provided by the utility model is as follows:

[0006] A flue gas desulfurization device for limestone production, including tower shell, pressure liquid storage tank, air inlet and air outlet, the tower shell is installed on the upper end of the mounting plate, the lower end of the tower shell is fixedly installed with support leg, the staggered baffle is fixedly installed in the tower shell, the staggered baffle is arranged above the air inlet, the upper portion of the staggered baffle is sequentially provided with nozzle one, fan blade, nozzle two, dry filler and activated carbon porous filter, the fan blade is fixedly arranged on the upper end of the rotating rod, the left end of the rotating rod is fixedly connected with the output end of the driving motor, the right side of the rotating rod is rotatably connected with the inner wall of the tower shell, the bottom motor is installed on the lower end of the mounting plate, the output end of the bottom motor is fixedly connected with the stirring rod, and the stirring rod is fixedly connected with the scraper through the stirring blade.

[0007] Further, the nozzle one is communicated with the communication pipe through branch pipe one, the nozzle two is communicated with the communication pipe through branch pipe two, the communication pipe is communicated with the pressure liquid storage tank, and the pump body is installed at the communication pipe.

[0008] Further, the dry filler is filled between the lower limit position blocking net and the upper limit position blocking net.

[0009] Further, the scraper is closely attached to the inner wall of the tower shell.

[0010] Further, the dry filler adopts silica gel particles.

[0011] Further, the bottom of the tower shell is provided with a liquid discharge port.

[0012] Compared with the prior art, the flue gas desulfurization device for limestone production has the following advantages:

[0013] 1, the fan blade disturbance enhances mixing, improves desulfurization quality, the staggered baffle intercepts impurities and uniformly distributes flue gas, and the comprehensiveness and effectiveness of flue gas treatment are increased;

[0014] 2, the bottom motor drives the scraper, efficiently cleans the tower body accumulation, and the stirring blade promotes the reaction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] Explanation of main element symbols:

[0017] 1-tower shell, 101-inlet, 102-outlet, 2-mounting plate, 3-support leg, 4-interleaved partition, 5-nozzle one, 6-nozzle two, 7-branch pipe one, 8-branch pipe two, 9-pressure liquid storage tank, 10-communication pipe, 11-pump body, 12-driving motor, 13-rotating rod, 14-fan blade, 15-dry filler, 16-lower limit baffle, 17-upper limit baffle, 18-activated carbon porous filter plate, 19-bottom motor, 20-stirring rod, 21-stirring blade, 22-scraping plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples, but the examples are not used as the limitation of the utility model.

[0019] As shown in the drawings, the embodiment of the utility model includes tower shell 1, pressure liquid storage tank 9, inlet 101 and outlet 102, inlet 101 is used to guide into the flue gas containing harmful gas such as sulfur dioxide, and outlet 102 is used to discharge clean gas after purification treatment. Figure 1 Tower shell 1 is installed at the upper end of mounting plate 2, the lower end of tower shell 1 is fixedly installed with support leg 3, interleaved partition 4 is fixedly installed in tower shell 1, interleaved partition 4 is arranged above inlet 101, and interleaved partition 4 is fixedly installed in tower shell 1 and located above inlet 101. Its function is to change the flow direction of the flue gas entering the tower in the rising process, increase the contact area and time of the flue gas with the subsequent processing components, and improve the desulfurization efficiency.

[0020]

[0021] ​The upper part of the staggered baffle 4 is sequentially provided with a first spray head 5, a fan blade 14, a second spray head 6, a drying filler 15 and an activated carbon porous filter 18. The fan blade 14 is fixedly arranged at the upper end of a rotating rod 13, the left end of the rotating rod 13 is fixedly connected with the output end of a driving motor 12, and the right side of the rotating rod 13 is rotatably connected with the inner wall of the tower shell 1. The first spray head 5 is connected with the communication pipe 10 through a branch pipe 7, the second spray head 6 is connected with the communication pipe 10 through a branch pipe 8, the communication pipe 10 is connected with the pressure liquid storage tank 9, the pump body 11 is installed at the communication pipe 10, the first spray head 5 is connected with the communication pipe 10 through the branch pipe 7, and the second spray head 6 is connected with the communication pipe 10 through the branch pipe 8. The pressure liquid storage tank 9 provides desulfurization liquid for the first spray head 5 and the second spray head 6 through the communication pipe 10. Under the action of the pump body 11, the desulfurization liquid enters the first spray head 5 and the second spray head 6 from the pressure liquid storage tank 9 through the communication pipe 10, the branch pipe 7 and the branch pipe 8, and the desulfurization liquid is atomized by the spray head and sprayed to the ascending flue gas, so that the desulfurization liquid and the harmful gas such as sulfur dioxide in the flue gas react chemically, thereby realizing desulfurization. The fan blade 14 is fixedly arranged at the upper end of the rotating rod 13, the left end of the rotating rod 13 is fixedly connected with the output end of the driving motor 12, and the right side is rotatably connected with the inner wall of the tower shell 1. After the driving motor 12 is started, the rotating rod 13 and the fan blade 14 are driven to rotate, the fan blade 14 accelerates the flow of the flue gas in the tower, so that the flue gas and the desulfurization liquid are fully mixed, the desulfurization effect is further improved, and the reaction product is blown to the bottom of the tower at the same time.

[0022] The drying filler 15 is filled between the lower limit stop net 16 and the upper limit stop net 17, and the drying filler 15 is made of silica gel particles.

[0023] The bottom of the tower shell 1 is provided with a liquid discharge port.

[0024] The lower end of the mounting plate 2 is provided with a bottom motor 19, the output end of the bottom motor 19 is fixedly connected with a stirring rod 20, the stirring rod 20 is fixedly connected with a stirring blade 21 and a scraper 22, the scraper 22 is tightly attached to the inner wall of the tower shell 1, and the bottom motor 19 drives the stirring rod 20, the stirring blade 21 and the scraper 22 to rotate when the bottom motor 19 is started. The stirring blade 21 stirs the desulfurization reaction product and residual liquid at the bottom of the tower to prevent sedimentation and caking, and the scraper 22 scrapes off the impurities attached to the inner wall of the tower shell 1 and discharges them through the liquid discharge port at the bottom of the tower shell 1, so as to keep the tower clean and ensure the normal operation of the device.

[0025] Among them, the electrical elements appearing in the article are all electrically connected with the main controller and the power supply outside, and the main controller can be a conventional known device such as a computer for control.

[0026] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flue gas desulfurization device for limestone production, comprising a tower outer shell (1), a pressure liquid storage tank (9), an air inlet (101) and an air outlet (102), the tower outer shell (1) is installed at the upper end of a mounting plate (2), a supporting leg (3) is fixedly installed at the lower end of the tower outer shell (1), characterized in that, The tower shell (1) is fixedly installed with staggered partitions (4), the staggered partitions (4) are arranged above the air inlet (101), a nozzle one (5), a fan blade (14), a nozzle two (6), a dry filler (15) and an activated carbon porous filter (18) are sequentially arranged above the staggered partitions (4), the fan blade (14) is fixedly arranged at the upper end of a rotating rod (13), the left end of the rotating rod (13) is fixedly connected with the output end of a driving motor (12), and the right side of the rotating rod (13) is rotatably connected with the inner wall of the tower shell (1); a bottom motor (19) is installed at the lower end of the mounting plate (2), the output end of the bottom motor (19) is fixedly connected with a stirring rod (20), and the stirring rod (20) is fixedly connected with a scraper (22) through a stirring blade (21).

2. A flue gas desulphurization device for limestone production as claimed in claim 1, wherein, The nozzle one (5) is connected with a communication pipe (10) through a branch pipe one (7), the nozzle two (6) is connected with the communication pipe (10) through a branch pipe two (8), the communication pipe (10) is connected with the pressure liquid storage tank (9), and the pump body (11) is installed at the communication pipe (10).

3. A flue gas desulphurization device for limestone production as claimed in claim 2, wherein, The dry filler (15) is filled between the lower limit baffle net (16) and the upper limit baffle net (17).

4. A flue gas desulphurization device for limestone production as claimed in claim 3 wherein, The scraper (22) is closely attached to the inner wall of the tower shell (1).

5. A flue gas desulphurization device for limestone production as claimed in claim 4 wherein, The dry filler (15) is made of silica gel particles.

6. A flue gas desulphurization device for limestone production as claimed in claim 5 wherein, The bottom of the tower shell (1) is provided with a liquid discharge port.

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