A mobile desulfurization and dust removal fixed bed

Abstract

The present invention relates to the technical field of dry desulfurization and dust removal devices, and proposes a mobile desulfurization fine dust removal fixed bed, comprising an outer cylinder and an inner cylinder arranged inside the outer cylinder, the inner cylinder is connected to a flue gas inlet, a filling cavity is arranged at the lower part of the inner cylinder, the filling cavity is filled with a desulfurizer, an annular cylinder is also arranged inside the inner cylinder, the annular cylinder is filled with a desulfurizer, the lower part of the annular cylinder is placed in the filling cavity, a dust bag is arranged at the upper part of the outer cylinder, an annular blowing pipe is arranged at the upper part of the dust bag, a disturbance mechanism is arranged inside the annular cylinder, the disturbance mechanism is connected to an intermittent opening and closing cleaning mechanism through a linkage mechanism, and a flue gas outlet is arranged at the upper part of the outer cylinder. The beneficial effects of the present application: the desulfurization effect and efficiency are improved, the top of the outer cylinder can be intermittently closed, so that the time for the flue gas to stay inside the outer cylinder is prolonged, so that the dust particles in the flue gas can be further removed, and the linkage mechanism of the present application has ingenious linkage.

Description

Technical Field

[0001] The invention relates to the technical field of dry desulfurization and dust removal devices, and in particular to a mobile desulfurization fine dust removal fixed bed. Background Art

[0002] Fixed bed dry desulfurization technology uses catalytic oxidation desulfurizer to oxidize sulfur dioxide in flue gas into sulfur trioxide first and then be absorbed by calcium hydroxide into calcium sulfate. In the reactor, due to the presence of bed materials, the desulfurizer can be spread over a large area, remove SO2 in the flue gas, intercept and adsorb dust in the flue gas, and purify the flue gas. However, when the bed thickness is high, the material accumulation squeezes the desulfurizer at the bottom. Once the desulfurizer is unqualified and has a low hardness, it is easy to be crushed to form dust, causing particulate matter emissions to exceed the standard.

[0003] Therefore, it is necessary to propose a new solution to solve the problem of excessive dust in the actual operation of fixed bed desulfurization and achieve ultra-low emissions of flue gas desulfurization and dust removal. Summary of the invention

[0004] The present application proposes a mobile desulfurization fine dust removal fixed bed, which can improve the effect of flue gas desulfurization while reducing the emission of dust particles.

[0005] To this end, the present application provides a mobile desulfurization and fine dust removal fixed bed, comprising an outer cylinder and an inner cylinder arranged inside the outer cylinder, the inner cylinder being connected to a flue gas inlet, a filling cavity being provided at the lower part of the inner cylinder, the filling cavity being filled with a desulfurizer, an annular cylinder being also provided inside the inner cylinder, the annular cylinder being filled with a desulfurizer, the lower part of the annular cylinder being placed in the filling cavity, a dust removal bag being provided at the upper part of the outer cylinder, an annular blowing pipe being provided at the upper part of the dust removal bag, a disturbance mechanism being provided inside the annular cylinder, the disturbance mechanism being driven and connected to an intermittent opening and closing cleaning mechanism through a linkage mechanism, and a flue gas outlet being provided at the upper part of the outer cylinder.

[0006] By adopting the above technical scheme: the flue gas enters the inner cylinder from the flue gas inlet, and then passes through the filling cavity at the bottom of the inner cylinder and the desulfurizer in the annular cylinder for desulfurization. The flue gas in the desulfurization process rises to the top of the annular cylinder to the inside of the outer cylinder, thereby realizing flue gas desulfurization. The desulfurization ash and desulfurizer particles can be removed by the cooperation of the dust removal bag and the annular blowing pipe, thereby reducing the emission of particulate dust. The disturbance mechanism in the present application can disturb the desulfurizer so that the flue gas can have more sufficient contact with the desulfurizer, thereby improving the desulfurization effect and efficiency. The intermittent opening and closing cleaning mechanism is driven by the linkage mechanism to intermittently close the top of the outer cylinder, thereby prolonging the time that the flue gas stays in the outer cylinder, thereby further removing dust particles in the flue gas. At the same time, the linkage mechanism of the present application has ingenious linkage, which saves the investment in other power components and reduces costs.

[0007] Optionally, a star-shaped discharge valve and a manual gate valve are provided at the lower portion of the inner cylinder, and the upper portion of the annular cylinder is fixedly connected to the inner wall of the outer cylinder via a connecting rod.

[0008] By adopting the above technical solution: by setting a star-shaped unloading valve and a manual gate valve, when the desulfurization effect of the desulfurizer gradually decreases, the manual gate valve and the star-shaped unloading valve are opened to replace the particles, and the connection strength between the annular cylinder and the inner wall of the outer cylinder can be strengthened by the connecting rod.

[0009] Optionally, the disturbance mechanism includes a disturbance component rotatably connected to the inside of the annular cylinder.

[0010] Optionally, the disturbance assembly includes a rotating rod and a disturbance plate arranged on the rotating rod, and the upper end of the rotating rod is connected to the linkage mechanism.

[0011] By adopting the above technical solution: when the rotating rod rotates, it can drive the disturbance plate to rotate inside the annular cylinder, so as to slowly disturb the desulfurizer particles, so that the flue gas and the desulfurizer are in closer contact, thereby improving the flue gas desulfurization effect.

[0012] Optionally, the linkage mechanism includes a swinging power member arranged on the upper part of the outer cylinder, the lower end of the output shaft of the swinging power member is connected to a rotating linkage body, and the upper end of the rotating rod is connected to the lower side of the rotating linkage body.

[0013] By adopting the above technical solution: the swinging power part can adopt a forward and reverse servo motor or a matching mechanism of a cylinder and a rack gear, as long as the reciprocating rotation of the rotating linkage body can be achieved, the reciprocating rotation of the rotating linkage body can drive the rotating rod to rotate, thereby disturbing the desulfurizer particles.

[0014] Optionally, the rotating linkage body is cylindrical, and a driving inclined groove is provided on its outer side for driving the intermittent opening and closing cleaning mechanism.

[0015] Optionally, the intermittent opening and closing cleaning mechanism cover is arranged on an installation cover outside the rotating linkage body, and a plurality of fan blades are rotatably connected between the installation cover and the inner wall of the outer cylinder through a rotating shaft. The rotating shaft inside the fan blade is driven and connected to the driving inclined groove through a linkage part, and a cleaning brush is provided at the bottom of the fan blade.

[0016] By adopting the above technical solution: when the rotating linkage body rotates, firstly, it can drive the rotating rod to rotate and disturb the desulfurizer particles, and secondly, it can drive multiple fan blades to rotate simultaneously through the driving inclined groove arranged on its outer wall, so as to close or open the top of the outer cylinder, and the cleaning brush can also clean the dust, which is convenient for dust absorption.

[0017] Optionally, a plurality of the fan blades cover the upper portion of the outer cylinder when overlapped with each other.

[0018] By adopting the above technical solution: when the multiple fan blades are rotated to be laid flat, the top of the outer cylinder can be closed. At this time, the smoke will not be directly discharged from the outer cylinder. After waiting for a period of time and dust removal by the dust bag, the rotating linkage body rotates in the opposite direction. Driven by the driving inclined groove, the multiple fan blades rotate in the opposite direction, and the gaps between the fan blades can discharge the smoke.

[0019] Optionally, the linkage member includes an L-shaped rocker arm having one end connected to the rotating shaft, and the other end of the L-shaped rocker arm is slidably disposed inside the driving inclined groove.

[0020] By adopting the above technical solution: when the rotating linkage body rotates, the driving inclined slot drives the L-shaped swing rod to rotate, thereby driving the fan blades to rotate, closing and opening the upper part of the outer cylinder in a time-sharing manner.

[0021] Optionally, a filter plate is provided on the upper portion of the outer cylinder.

[0022] By adopting the above technical solution, the flue gas after desulfurization and dust removal finally passes through the filter plate and is discharged from the flue gas outlet.

[0023] The working principle and beneficial effects of this application are:

[0024] 1. Flue gas enters the inner cylinder from the flue gas inlet, and then passes through the filling cavity at the bottom of the inner cylinder and the desulfurizer in the annular cylinder for desulfurization. During the desulfurization process, the flue gas rises to the top of the annular cylinder to the inside of the outer cylinder to achieve flue gas desulfurization. The desulfurization ash and desulfurizer particles can be removed through the cooperation of the dust removal bag and the annular blowing pipe, thereby reducing the emission of particulate dust. The disturbance mechanism in this application can disturb the desulfurizer so that the flue gas can have more sufficient contact with the desulfurizer, thereby improving the desulfurization effect and efficiency. The intermittent opening and closing cleaning mechanism is driven by the linkage mechanism to intermittently close the top of the outer cylinder, so that the flue gas stays in the outer cylinder for a longer time, thereby further removing dust particles in the flue gas. At the same time, the linkage mechanism of this application has ingenious linkage, which saves the investment in other power components and reduces costs.

[0025] 2. When the rotating rod rotates, it can drive the disturbance plate to rotate inside the annular cylinder, thereby slowly disturbing the desulfurizer particles, so that the flue gas and the desulfurizer are in closer contact, thereby improving the flue gas desulfurization effect.

[0026] 3. When the rotating linkage body rotates, it can drive the rotating rod to rotate and disturb the desulfurizer particles, and can also drive multiple fan blades to rotate simultaneously through the driving inclined grooves arranged on its outer side wall, so as to close or open the top of the outer cylinder.

[0027] 4. When the blades are rotated to be laid flat, the top of the outer cylinder can be closed. At this time, the smoke will not be directly discharged from the outer cylinder. After waiting for a while, the dust is removed by the dust bag, and the rotating linkage body rotates in the opposite direction. Driven by the driving chute, the blades rotate in the opposite direction, and the gaps between the blades can discharge the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 For the embodiments of this application Figure 1 Enlarged structural diagram at A in the middle.

[0031] In the figure: 100, outer cylinder; 110, flue gas outlet; 120, filter plate; 200, inner cylinder; 210, filling chamber; 220, star-shaped discharge valve; 230, manual plug valve; 240, connecting rod; 300, flue gas inlet; 400, annular cylinder; 500, dust bag; 600, annular blowing pipe; 700, disturbance mechanism; 710, rotating rod; 720, disturbance plate; 800, linkage mechanism; 810, swing power part; 820, rotating linkage body; 830, driving chute; 900, intermittent opening and closing cleaning mechanism; 910, mounting cover; 920, rotating shaft; 930, fan blade; 931, cleaning brush; 940, L-shaped swing rod. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 2As shown, this embodiment provides a mobile desulfurization fine dust removal fixed bed, including an outer cylinder 100 and an inner cylinder 200 arranged inside the outer cylinder 100, the inner cylinder 200 is connected to a flue gas inlet 300, a filling chamber 210 is provided at the lower part of the inner cylinder 200, and the filling chamber 210 is filled with a desulfurizer, an annular cylinder 400 is also provided inside the inner cylinder 200, and the annular cylinder 400 is filled with a desulfurizer, and the lower part of the annular cylinder 400 is placed in the filling chamber 210, a dust bag 500 is provided at the upper part of the outer cylinder 100, and an annular blowing pipe 600 is provided at the upper part of the dust bag 500, a disturbance mechanism 700 is provided inside the annular cylinder 400, and the disturbance mechanism 700 is connected to an intermittent opening and closing cleaning mechanism 900 through a linkage mechanism 800, and a flue gas outlet 110 is provided at the upper part of the outer cylinder 100.

[0034] The basic principle of this embodiment is as follows: the flue gas enters the inner cylinder 200 from the flue gas inlet 300, and then passes through the filling cavity 210 at the bottom of the inner cylinder 200 and the desulfurizer in the annular cylinder 400 for desulfurization. The flue gas in the desulfurization process rises to the top of the annular cylinder 400 to the inside of the outer cylinder 100 to achieve flue gas desulfurization. The dust removal bag 500 and the annular blowing pipe 600 can cooperate to remove desulfurization ash and desulfurizer particles, thereby reducing the emission of particulate dust. In this application, the disturbance mechanism 700 can disturb the desulfurizer so that the flue gas can be in more sufficient contact with the desulfurizer, thereby improving the desulfurization effect and efficiency. The intermittent opening and closing cleaning mechanism 900 is driven by the linkage mechanism 800 to intermittently close the top of the outer cylinder 100, so that the time for the flue gas to stay in the outer cylinder 100 is prolonged, thereby further removing dust particles in the flue gas. At the same time, the linkage mechanism 800 of this application has a clever linkage, which saves the investment in other power components and reduces costs.

[0035] The lower part of the inner cylinder 200 is provided with a star-shaped unloading valve 220 and a manual plug valve 230, and the upper part of the annular cylinder 400 is fixedly connected to the inner wall of the outer cylinder 100 through a connecting rod 240. By providing the star-shaped unloading valve 220 and the manual plug valve 230, when the desulfurization effect of the desulfurizer gradually decreases, the manual plug valve 230 and the star-shaped unloading valve 220 are opened to replace the particles, and the connection strength between the annular cylinder 400 and the inner wall of the outer cylinder 100 can be strengthened by the connecting rod 240.

[0036] The disturbance mechanism 700 in this embodiment includes a disturbance component rotatably connected to the inside of the annular cylinder 400, wherein the disturbance component includes a rotating rod 710 and a disturbance sheet 720 arranged on the rotating rod 710, and the upper end of the rotating rod 710 is connected to the linkage mechanism 800.

[0037] When the rotating rod 710 rotates, the disturbance plate 720 can be driven to rotate inside the annular cylinder 400, so as to slowly disturb the desulfurizer particles, so that the flue gas and the desulfurizer are in closer contact, thereby improving the flue gas desulfurization effect.

[0038] The linkage mechanism 800 in this embodiment includes a swinging power member 810 arranged on the upper part of the outer cylinder 100 , the lower end of the output shaft of the swinging power member 810 is connected to a rotating linkage body 820 , and the upper end of the rotating rod 710 is connected to the lower side of the rotating linkage body 820 .

[0039] The swinging power member 810 can adopt a forward and reverse servo motor or a cylinder and a rack gear matching mechanism, as long as the rotating linkage body 820 can be reciprocated, the reciprocating rotation of the rotating linkage body 820 can drive the rotating rod 710 to rotate, thereby disturbing the desulfurizer particles.

[0040] Specifically, the rotating linkage body 820 in this embodiment is cylindrical, and a driving inclined groove 830 for driving the intermittent opening and closing cleaning mechanism 900 is provided on its outer side.

[0041] The intermittent opening and closing cleaning mechanism 900 in this embodiment is covered by a mounting cover 910 arranged on the outside of the rotating linkage body 820. The mounting cover 910 is fixed to the top of the outer cylinder 100 through a connecting frame. A plurality of fan blades 930 are rotatably connected between the mounting cover 910 and the inner wall of the outer cylinder 100 through a rotating shaft 920. The rotating shaft 920 on the inner side of the fan blade 930 is drivingly connected to the driving inclined groove 830 through a linkage. A cleaning brush 931 is provided at the lower part of the fan blade 930.

[0042] When the rotating linkage body 820 rotates, firstly, it can drive the rotating rod 710 to rotate and disturb the desulfurizer particles to remove the dust covering the surface of the desulfurization particles; secondly, it can drive multiple fan blades 930 to rotate simultaneously through the driving inclined groove 830 set on its outer side wall, so as to close or open the top of the outer cylinder 100.

[0043] Among them, when the multiple fan blades 930 are overlapped with each other, they cover the upper part of the outer cylinder 100. When the multiple fan blades 930 are rotated to be flat, the top of the outer cylinder 100 can be closed. At this time, the smoke will not be directly discharged from the outer cylinder 100. After waiting for a period of time, after the dust removal bag 500 has removed the dust, the rotating linkage body 820 rotates in the opposite direction. Driven by the driving inclined groove 830, the multiple fan blades 930 rotate in the opposite direction, and the gaps between the fan blades 930 can discharge the smoke.

[0044] The linkage part includes an L-shaped rocker arm 940 connected to the rotating shaft 920 at one end, and the other end of the L-shaped rocker arm 940 is slidably arranged inside the driving inclined groove 830. When the rotating linkage body 820 rotates, the driving inclined groove 830 drives the L-shaped rocker arm 940 to rotate, thereby driving the fan blade 930 to rotate, thereby closing and opening the upper part of the outer cylinder body 100 in a time-sharing manner.

[0045] Finally, a filter plate 120 is provided at the upper portion of the outer cylinder 100 of the present embodiment, and the flue gas after desulfurization and dust removal finally passes through the filter plate 120 and is discharged from the flue gas outlet 110 .

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile desulfurization fine dust removal fixed bed, characterized in that: The invention comprises an outer cylinder (100) and an inner cylinder (200) arranged inside the outer cylinder (100), the inner cylinder (200) being connected to a flue gas inlet (300), a filling cavity (210) being provided at the lower part of the inner cylinder (200), the filling cavity (210) being filled with a desulfurizing agent, an annular cylinder (400) being further provided inside the inner cylinder (200), the annular cylinder (400) being filled with a desulfurizing agent, the annular cylinder (400) being The lower part of the outer cylinder (100) is placed in the filling chamber (210), a dust removal bag (500) is provided on the upper part of the outer cylinder (100), an annular blowing pipe (600) is provided on the upper part of the dust removal bag (500), a disturbance mechanism (700) is provided inside the annular cylinder (400), the disturbance mechanism (700) is connected to an intermittent opening and closing cleaning mechanism (900) through a linkage mechanism (800), and a smoke outlet (110) is provided on the upper part of the outer cylinder (100); The disturbance mechanism (700) comprises a disturbance component rotatably connected inside the annular cylinder (400); The disturbance component comprises a rotating rod (710) and a disturbance sheet (720) arranged on the rotating rod (710); the upper end of the rotating rod (710) is connected to a linkage mechanism (800); The linkage mechanism (800) comprises a swinging power member (810) arranged on the upper part of the outer cylinder (100); the lower end of the output shaft of the swinging power member (810) is connected to a rotating linkage body (820); and the upper end of the rotating rod (710) is connected to the lower side of the rotating linkage body (820); The rotating linkage body (820) is cylindrical, and is provided with a driving inclined groove (830) on its outer side for driving the intermittent opening and closing cleaning mechanism (900); The intermittent opening and closing cleaning mechanism (900) is covered by a mounting cover (910) arranged outside the rotating linkage body (820); a plurality of blades (930) are rotatably connected between the mounting cover (910) and the inner wall of the outer cylinder (100) via a rotating shaft (920); the rotating shaft (920) inside the blade (930) is drivingly connected to the driving inclined groove (830) via a linkage member; and a cleaning brush (931) is provided at the bottom of the blade (930).

2. A mobile desulfurization fine dust removal fixed bed according to claim 1, characterized in that: The lower part of the inner cylinder (200) is provided with a star-shaped discharge valve (220) and a manual gate valve (230), and the upper part of the annular cylinder (400) is fixedly connected to the inner wall of the outer cylinder (100) via a connecting rod (240).

3. A mobile desulfurization fine dust removal fixed bed according to claim 1, characterized in that: When the plurality of fan blades (930) overlap each other, they cover the upper portion of the outer cylinder (100).

4. The mobile desulfurization fine dust removal fixed bed according to claim 1 is characterized in that: The linkage member comprises an L-shaped swing rod (940) having one end connected to the rotating shaft (920), and the other end of the L-shaped swing rod (940) is slidably disposed inside the driving inclined groove (830).

5. A mobile desulfurization fine dust removal fixed bed according to any one of claims 1 to 4, characterized in that: A filter plate (120) is provided on the upper portion of the outer cylinder (100).

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