Ash discharging and flow guiding device of desulfurizing tower

Abstract

The utility model discloses an ash discharge guide device of a desulfurizing tower, which relates to the technical field of ash discharge devices of desulfurizing towers, and comprises an ash discharge pipeline component, a valve component and an anti-blocking material conveying component, the ash discharge pipeline component consists of a horizontal conveying pipe, a vertical conveying pipe, a horn-shaped connector, a flange and a fixed seat, and the anti-blocking material conveying component is used for realizing ash discharge operation; the anti-blocking conveying assembly comprises a horizontal conveying unit and a vertical stirring unit; the horizontal conveying unit is used for horizontally conveying and discharging the desulfurized fly ash falling into the horizontal conveying pipe; and the vertical stirring unit rotates by utilizing the rotating power of the horizontal conveying unit and is used for stirring and crushing the desulfurized fly ash at the bottom of the ash collecting hopper and conveying the desulfurized fly ash downwards. By arranging the anti-blocking material conveying assembly, efficient discharging of desulfurized fly ash is achieved, meanwhile, the desulfurized fly ash at the bottom of the ash collecting hopper is stirred and scattered through the second spiral blade, and the blocking condition in the conveying process can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a desulfurizing tower ash discharge device technical field, specifically is a kind of ash guide device of desulfurizing tower. BACKGROUND

[0002] Dry desulfurization tower is a kind of environmental protection equipment for removing sulfur oxides (SO2 etc.) in flue gas, and desulfurization is realized by dry adsorbent or chemical reaction, without liquid absorbent, suitable for various industrial scenes, and its core components include:

[0003] 1. Flue gas inlet: the passage of high-temperature flue gas into desulfurization tower;

[0004] 2. Adsorbent injection system: uniformly spray lime powder (CaO), activated carbon or sodium bicarbonate (NaHCO3) and other adsorbents into flue gas;

[0005] 3. Reaction zone: adsorbent and SO2 occur chemical reaction (such as CaO+SO2+1 / 2O2→CaSO4), residence time and temperature need to be controlled;

[0006] 4. Gas-solid separation device: mostly using bag filter or electric precipitator, separating desulfurization products and purified gas;

[0007] 5. Purified gas outlet: the treated gas is discharged after detection;

[0008] 6. Ash discharge and collection system: collect solid by-product (such as CaSO4), and further resource treatment.

[0009] The ash discharge and collection system of dry desulfurization tower is located at the bottom of desulfurization tower or below gas-solid separation device (such as bag filter), used for centralized temporary storage of desulfurization ash (such as CaSO4, Na2SO4, activated carbon ash etc.) after reaction, and in actual operation, there is the situation that ash slag clinkering leads to channel blockage, based on this, a kind of ash guide device of desulfurizing tower is provided. UTILITY MODEL CONTENTS

[0010] The utility model aims at: in order to solve the problems in the above background, provide a kind of ash guide device of desulfurizing tower.

[0011] In order to achieve the above object, the utility model provides the following technical scheme: a dust guide device of desulfurization tower, including by horizontal delivery pipe, vertical delivery pipe, loudspeaker connecting mouth, flange dust pipe line assembly, the vertical delivery pipe is fixed in the top of horizontal delivery pipe through loudspeaker connecting mouth, the flange is fixed in the top of vertical delivery pipe, the vertical delivery pipe is fixedly connected with dust hopper bottom through flange, the inside middle part of vertical delivery pipe is fixed with fixed seat, the outside of vertical delivery pipe is provided with valve assembly extending to the inside of vertical delivery pipe and the middle of fixed seat, the valve assembly is used for realizing the cut-off and on-off control of vertical delivery pipe;

[0012] The inside of the horizontal delivery pipe is provided with a anti-blocking material feeding assembly extending through the fixed seat to the top of the vertical delivery pipe, and the anti-blocking material feeding assembly is used for realizing the dust discharge operation.

[0013] The anti-blocking material feeding assembly comprises a horizontal conveying unit and a vertical stirring unit.

[0014] The horizontal conveying unit is used for horizontally conveying and discharging the desulfurization ash falling into the horizontal delivery pipe.

[0015] The vertical stirring unit is rotated by the rotating power of the horizontal conveying unit, and is used for stirring and crushing the desulfurization ash at the bottom of the dust hopper, and simultaneously conveying the desulfurization ash downward.

[0016] As a further scheme of the utility model, the horizontal conveying unit comprises an inner cylinder shell, a second driving motor, a horizontal rotating shaft and a first spiral blade.

[0017] The inner cylinder shell is fixed to one end of the horizontal delivery pipe, the second driving motor is fixed to one end outside of the inner cylinder shell, the output end of the second driving motor penetrates into the inner cylinder shell and is fixedly connected with the horizontal rotating shaft, the horizontal rotating shaft penetrates into the inner cylinder shell to the inside of the horizontal delivery pipe and extends to the other end of the horizontal delivery pipe, and the first spiral blade is distributed on the inside of the horizontal delivery pipe and is fixed to the outside of the horizontal rotating shaft.

[0018] The horizontal rotating shaft and the first spiral blade are driven by the second driving motor to rotate, and are used for horizontally conveying and discharging the desulfurization ash falling into the horizontal delivery pipe.

[0019] As a further scheme of the utility model, the vertical stirring unit comprises a first bevel gear, a vertical rotating shaft, a second spiral blade and a second bevel gear.

[0020] The vertical rotating shaft is vertically rotatably connected with the first spiral blade, and the top of the vertical rotating shaft protrudes to the top of the vertical delivery pipe, the second spiral blade is distributed above the fixed seat and is fixed to the outside of the vertical rotating shaft.

[0021] The bottom of the vertical rotating shaft extends through to the inside of the inner cylinder shell and is fixedly connected with the second bevel gear, and the first bevel gear is fixed to the outside of the horizontal rotating shaft and is engaged with the second bevel gear;

[0022] When the horizontal rotating shaft rotates, the vertical rotating shaft and the second spiral blade rotate through the rotation of the first bevel gear and the second bevel gear, and the desulfurization ash at the bottom of the ash hopper is stirred and crushed and downwardly conveyed through the second spiral blade.

[0023] As a further scheme of the present application, the end of the inner cylinder shell away from the second driving motor extends to below the port of the horn connecting port, and the top of the end of the inner cylinder shell away from the second driving motor is symmetrically formed with an inclined surface with the vertical rotating shaft as the center;

[0024] The gap between the fixed seat and the inner wall of the vertical conveying pipe is vertically aligned with the inclined surface.

[0025] As a further scheme of the present application, a scraper is fixed to the position close to the top of the inner cylinder shell on the outside of the vertical rotating shaft, the rotating radius of the scraper matches the bottom port radius of the horn connecting port, and the lower surface of the scraper is flush with the uppermost surface of the inner cylinder shell.

[0026] As a further scheme of the present application, the valve assembly comprises a valve seat, a concave valve plate, a fixed screw cylinder, a first driving motor and a screw rod;

[0027] The valve seat is fixed to one end of the outer wall of the vertical conveying pipe, the concave valve plate is horizontally and slidingly connected to the inside of the valve seat and extends to the inside of the vertical conveying pipe, and the concave valve plate forms a blockage to the gap in the diameter between the fixed seat and the inner wall of the horizontal conveying pipe;

[0028] The fixed screw cylinder is fixed to one end of the concave valve plate and extends to one end of the outside of the valve seat, the first driving motor is fixed to one end of the outside of the valve seat through a support, the screw rod is fixed to the output end of the first driving motor and extends to the inside of the fixed screw cylinder, and the screw rod is threadedly connected with the fixed screw cylinder;

[0029] The horizontal movement of the concave valve plate and the fixed screw cylinder is realized by rotating the screw rod driven by the first driving motor.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] By arranging the anti-blocking material conveying assembly, the desulfurization ash at the bottom of the ash hopper is stirred and scattered through the second spiral blade while the desulfurization ash is efficiently discharged, so that the blocking condition in the conveying process can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0032] Fig. 1 The present application is a structural schematic view;

[0033] Fig. 2 A structural sectional view of the present application;

[0034] Fig. 3 A sectional split view of the present application;

[0035] Fig. 4 Another perspective view of the sectional split of the present application;

[0036] Fig. 5 A structural sectional view of the anti-blocking material conveying assembly of the present application.

[0037] In the figure: 1, ash discharge pipeline assembly; 101, horizontal conveying pipe; 102, vertical conveying pipe; 103, horn connecting port; 104, flange; 105, fixed seat; 2, valve assembly; 201, valve seat; 202, concave valve plate; 203, fixed screw cylinder; 204, first driving motor; 205, screw rod; 3, anti-blocking material conveying assembly; 301, inner cylinder shell; 302, inclined section; 303, second driving motor; 304, horizontal rotating shaft; 305, first helical blade; 306, first bevel gear; 307, vertical rotating shaft; 308, second helical blade; 309, second bevel gear; 310, scraper. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] Please refer to Figs. 1-5 In the embodiments of the present application, an ash discharge flow guide device of a desulfurization tower comprises an ash discharge pipeline assembly 1 composed of a horizontal conveying pipe 101, a vertical conveying pipe 102, a horn connecting port 103 and a flange 104. The vertical conveying pipe 102 is fixed to the top of the horizontal conveying pipe 101 through the horn connecting port 103, and the flange 104 is fixed to the top of the vertical conveying pipe 102. The vertical conveying pipe 102 is fixedly connected with the bottom of the ash collecting hopper through the flange 104. The inner side of the vertical conveying pipe 102 is fixed with a fixed seat 105, and the outer side of the vertical conveying pipe 102 is provided with a valve assembly 2 extending to the inner side of the vertical conveying pipe 102 and the middle of the fixed seat 105. The valve assembly 2 is used to realize the blocking and conducting control of the vertical conveying pipe 102.

[0040] The inner side of the horizontal conveying pipe 101 is provided with an anti-blocking material conveying assembly 3 extending through the fixed seat 105 to the top of the vertical conveying pipe 102, and the anti-blocking material conveying assembly 3 is used to realize the ash discharge operation.

[0041] The anti-blocking feeding assembly 3 comprises a horizontal conveying unit and a vertical stirring unit. The horizontal conveying unit is used for horizontal conveying and discharging of the desulfurized ash falling into the horizontal conveying pipe 101. The vertical stirring unit rotates by using the rotating power of the horizontal conveying unit, and is used for stirring and crushing the desulfurized ash at the bottom of the ash collector, and downward conveying of the desulfurized ash;

[0042] The horizontal conveying unit comprises an inner cylinder shell 301, a second driving motor 303, a horizontal rotating shaft 304 and a first spiral blade 305.

[0043] The inner cylinder shell 301 is fixed to one end of the horizontal conveying pipe 101. The second driving motor 303 is fixed to the outer end of the inner cylinder shell 301. The output end of the second driving motor 303 penetrates into the inner cylinder shell 301 and is fixedly connected with the horizontal rotating shaft 304. The horizontal rotating shaft 304 penetrates into the inner cylinder shell 301 and extends to the other end of the horizontal conveying pipe 101. The first spiral blade 305 is distributed on the inner side of the horizontal conveying pipe 101 and is fixed to the outer side of the horizontal rotating shaft 304.

[0044] The horizontal rotating shaft 304 and the first spiral blade 305 are driven to rotate by the second driving motor 303, so as to perform horizontal conveying and discharging of the desulfurized ash falling into the horizontal conveying pipe 101.

[0045] The vertical stirring unit comprises a first bevel gear 306, a vertical rotating shaft 307, a second spiral blade 308 and a second bevel gear 309.

[0046] The vertical rotating shaft 307 is vertically rotatably connected with the first spiral blade 305, and the top of the vertical rotating shaft 307 protrudes to the top of the vertical conveying pipe 102. The second spiral blade 308 is distributed above the fixed seat 105 and is fixed to the outer side of the vertical rotating shaft 307.

[0047] The bottom of the vertical rotating shaft 307 extends and penetrates into the inner cylinder shell 301 and is fixedly connected with the second bevel gear 309. The first bevel gear 306 is fixed to the outer side of the horizontal rotating shaft 304 and is engaged with the second bevel gear 309.

[0048] When the horizontal rotating shaft 304 rotates, the vertical rotating shaft 307 and the second spiral blade 308 are driven to rotate by the rotation of the first bevel gear 306 and the second bevel gear 309. The second spiral blade 308 stirs and crushes the desulfurized ash at the bottom of the ash collector and downward conveys the desulfurized ash.

[0049] The valve assembly 2 comprises a valve seat 201, a concave valve plate 202, a fixed screw cylinder 203, a first driving motor 204 and a screw rod 205.

[0050] The valve seat 201 is fixed to one end of the outer wall of the vertical conveying pipe 102, the concave valve plate 202 is horizontally slidably connected to the inner side of the valve seat 201 and penetrates into the inside of the vertical conveying pipe 102, and the concave valve plate 202 seals the gap between the fixed seat 105 and the inner wall of the horizontal conveying pipe 101;

[0051] The fixed screw cylinder 203 is fixed to one end of the concave valve plate 202 and penetrates to one end of the outside of the valve seat 201, the first driving motor 204 is fixed to one end of the outside of the valve seat 201 through a support, the screw rod 205 is fixed to the output end of the first driving motor 204 and extends into the inside of the fixed screw cylinder 203, and the screw rod 205 is threadedly connected with the fixed screw cylinder 203;

[0052] The first driving motor 204 is driven to rotate the screw rod 205 to realize the horizontal movement of the concave valve plate 202 and the fixed screw cylinder 203.

[0053] In the embodiment, it needs to be explained that the vertical conveying pipe 102 is fixedly connected with the dust hopper at the bottom of the desulfurization tower or the gas-solid separation device through the flange 104, the second spiral blade 308 of the vertical conveying pipe 102 extends into the inside of the dust hopper, and the port of the horizontal conveying pipe 101 is connected to an external material receiving device;

[0054] In the daily state, the concave valve plate 202 seals the gap between the fixed seat 105 and the inner wall of the vertical conveying pipe 102, and the desulfurization ash generated in the operation of the desulfurization tower is collected in the dust hopper, when the desulfurization ash in the dust hopper needs to be unloaded, the operation method is as follows:

[0055] The first driving motor 204 and the second driving motor 303 are simultaneously started, the first driving motor 204 drives the screw rod 205 to rotate, the screw rod 205 drives the fixed screw cylinder 203 and the concave valve plate 202 to move horizontally under the cooperation of the threaded structure, the concave valve plate 202 is retracted into the inside of the valve seat 201, that is, the sealing of the gap between the fixed seat 105 and the inner wall of the vertical conveying pipe 102 is released;

[0056] At the same time, the second driving motor 303 drives the horizontal rotating shaft 304 and the first spiral blade 305 to rotate, the rotating horizontal rotating shaft 304 drives the vertical rotating shaft 307 and the second spiral blade 308 to rotate through the rotation of the first bevel gear 306 and the second bevel gear 309, the rotating second spiral blade 308 stirs the desulfurization ash at the bottom of the dust hopper, so that the desulfurization ash is loosened and is conveyed downward by the rotating second spiral blade 308, and when there is caked desulfurization ash, the second spiral blade 308 can crush the caked desulfurization ash to smaller particles when the caked desulfurization ash contacts the second spiral blade 308;

[0057] The falling ash conveyed downward by the second spiral blade 308 falls downward through the gap between the fixed seat 105 and the inner wall of the vertical conveying pipe 102 and finally falls into the inside of the horizontal conveying pipe 101 and is conveyed out by the rotating first spiral blade 305;

[0058] The above multiple parts cooperate to realize efficient discharge operation of the desulfurization ash and effectively avoid the blockage during the conveying process.

[0059] Please refer to Figs. 2-4 The end of the inner cylinder shell 301 away from the second driving motor 303 extends to below the port of the horn connecting port 103, and the top of the end of the inner cylinder shell 301 away from the second driving motor 303 is symmetrically formed with an inclined surface 302 centered on the vertical rotating shaft 307;

[0060] The gap between the fixed seat 105 and the inner wall of the vertical conveying pipe 102 is vertically aligned with the inclined surface 302;

[0061] The scraper 310 is fixed outside the vertical rotating shaft 307 close to the top of the inner cylinder shell 301, the rotating radius of the scraper 310 matches the bottom port radius of the horn connecting port 103, and the lower surface of the scraper 310 is flush with the uppermost surface of the inner cylinder shell 301.

[0062] In this embodiment: the inner cylinder shell 301 can shield and protect the transmission area of the first bevel gear 306 and the second bevel gear 309, and the inclined cutout 302 and the horn connecting port 103 are arranged to make the falling desulfurization ash smoothly fall into the inside of the horizontal conveying pipe 101, avoiding the blockage caused by the narrow pipeline;

[0063] In addition, the rotating scraper 310 can agitate the area of the horn connecting port 103, and the scraper 310 can scrape the highest part of the upper surface of the inner cylinder shell 301, which not only avoids the residual desulfurization ash, but also ensures the smooth conveying of the desulfurization ash at this position.

[0064] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A dust discharging guide device of a desulfurization tower, comprising a dust discharging pipeline assembly (1) composed of a horizontal conveying pipe (101), a vertical conveying pipe (102), a horn connecting port (103) and a flange (104), the vertical conveying pipe (102) is fixed to the top of the horizontal conveying pipe (101) through the horn connecting port (103), the flange (104) is fixed to the top of the vertical conveying pipe (102), and the vertical conveying pipe (102) is fixedly connected with the bottom of a dust collecting hopper through the flange (104), characterized in that, The inner middle part of the vertical conveying pipe (102) is fixed with a fixed seat (105), and the outer side of the vertical conveying pipe (102) is provided with a valve assembly (2) extending to the middle of the inner side of the vertical conveying pipe (102) and the fixed seat (105), which is used for realizing the control of the cut-off and conduction of the vertical conveying pipe (102); The inner side of the horizontal conveying pipe (101) is provided with an anti-blocking conveying assembly (3) extending through the fixed seat (105) to the top of the vertical conveying pipe (102), which is used for realizing the ash discharge operation. The anti-blocking conveying assembly (3) comprises a horizontal conveying unit and a vertical stirring unit. The horizontal conveying unit is used for horizontal conveying and discharging of the desulfurized ash falling into the horizontal conveying pipe (101). The vertical stirring unit rotates by using the rotating power of the horizontal conveying unit, and is used for stirring and crushing the desulfurized ash at the bottom of the ash collecting hopper, while conveying the desulfurized ash downward.

2. The ash guide device of a desulfurization tower according to claim 1, wherein The horizontal conveying unit comprises an inner cylinder shell (301), a second driving motor (303), a horizontal rotating shaft (304) and a first spiral blade (305). The inner cylinder shell (301) is fixed to one end of the horizontal conveying pipe (101), the second driving motor (303) is fixed to the outer end of the inner cylinder shell (301), the output end of the second driving motor (303) penetrates into the inner cylinder shell (301) and is fixedly connected with the horizontal rotating shaft (304), the horizontal rotating shaft (304) penetrates through the inner cylinder shell (301) to the inside of the horizontal conveying pipe (101) and extends to the other end of the horizontal conveying pipe (101), and the first spiral blade (305) is distributed on the inner side of the horizontal conveying pipe (101) and is fixed to the outer side of the horizontal rotating shaft (304). The horizontal conveying unit is used for horizontal conveying and discharging of the desulfurized ash falling into the horizontal conveying pipe (101).

3. The ash guide device of a desulfurizing tower according to claim 2, wherein The vertical stirring unit comprises a first bevel gear (306), a vertical rotating shaft (307), a second spiral blade (308) and a second bevel gear (309). The vertical rotating shaft (307) is vertically rotatably connected to the first spiral blade (305), and the top of the vertical rotating shaft (307) protrudes to the top of the vertical conveying pipe (102), the second spiral blade (308) is distributed above the fixed seat (105) and is fixed to the outer side of the vertical rotating shaft (307). The bottom of the vertical rotating shaft (307) extends through the inner cylinder shell (301) and is fixedly connected with the second bevel gear (309), and the first bevel gear (306) is fixed to the outer side of the horizontal rotating shaft (304) and is engaged with the second bevel gear (309). When the horizontal rotating shaft (304) rotates, the vertical rotating shaft (307) and the second spiral blade (308) are driven to rotate by the rotation of the first bevel gear (306) and the second bevel gear (309), and the desulfurized ash at the bottom of the ash collecting hopper is stirred and crushed downward by the second spiral blade (308).

4. The ash guide device of a desulfurizing tower according to claim 3, wherein The inner cylinder shell (301) extends to below the port of the horn connecting port (103) from the end of the second driving motor (303), and the top of the end of the inner cylinder shell (301) is centrally symmetrically formed with an inclined surface (302) with the vertical rotating shaft (307) as the center; The gap between the fixed seat (105) and the inner wall of the vertical conveying pipe (102) is vertically aligned with the inclined surface (302).

5. The ash guide device of a desulfurizing tower according to claim 3, wherein The vertical rotating shaft (307) is fixed with a scraper (310) near the top of the inner cylinder shell (301), the rotating radius of the scraper (310) matches the bottom port radius of the horn connecting port (103), and the lower surface of the scraper (310) is flush with the uppermost surface of the inner cylinder shell (301).

6. The ash guide device of a desulfurization tower according to claim 1, wherein The valve assembly (2) comprises a valve seat (201), a concave valve plate (202), a fixed screw cylinder (203), a first driving motor (204), and a screw rod (205); The valve seat (201) is fixed to one end of the outer wall of the vertical conveying pipe (102), the concave valve plate (202) is horizontally and slidingly connected to the inner side of the valve seat (201) and penetrates to the inside of the vertical conveying pipe (102), and the concave valve plate (202) forms a seal for the gap between the fixed seat (105) and the inner wall of the horizontal conveying pipe (101); The fixed screw cylinder (203) is fixed to one end of the concave valve plate (202) and penetrates to one end of the outside of the valve seat (201), the first driving motor (204) is fixed to one end of the outside of the valve seat (201) through a support, the screw rod (205) is fixed to the output end of the first driving motor (204) and extends to the inside of the fixed screw cylinder (203), and the screw rod (205) is threadedly connected with the fixed screw cylinder (203); The horizontal movement of the concave valve plate (202) and the fixed screw cylinder (203) is realized by rotating the screw rod (205) driven by the first driving motor (204).

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