Flue gas desulfurization tower with uniform spraying mechanism

Abstract

The utility model discloses a flue gas desulfurization tower with a uniform spraying mechanism, which comprises a desulfurization tower main body and a liquid inlet pipe, a smoke inlet pipe is inserted into the side wall of the lower end of the desulfurization tower main body, a smoke discharge pipe is inserted into the upper end of the desulfurization tower main body, the liquid inlet pipe is inserted into the side wall of the desulfurization tower main body, and a spraying pipe is installed in the inner cavity of the desulfurization tower main body. A cleaning mechanism is installed on the upper wall of the spraying pipe and comprises a connecting frame, a motor housing, a motor, a rotating rod and a cleaning brush, the connecting frame is installed on the upper wall of the spraying pipe, the motor housing is installed on the lower wall of the connecting frame, the motor is installed in the motor housing, and the motor is electrically connected with an external power source; according to the device disclosed by the invention, the motor in the cleaning mechanism drives the rotating rod and the cleaning brush to rotate, so that the rotating rod and the cleaning brush can clean the spraying pipe, and the phenomenon that the spraying head in the spraying pipe is blocked, so that the spraying is not uniform, and the desulfurization effect on the flue gas is influenced is avoided.

Description

TECHNICAL FIELD

[0001] The patent relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization tower with uniform spraying mechanism. BACKGROUND

[0002] In the industrial production process, some harmful flue gas will be produced, which mostly contains harmful gases such as sulfur dioxide and nitrogen oxides. When these gases are discharged into the atmosphere, they will cause acid rain and destroy the ecological environment, so it is necessary to treat the flue gas by flue gas desulfurization tower for desulfurization treatment;

[0003] At present, when the flue gas desulfurization tower is used, the flue gas is countercurrently contacted with the desulfurization liquid sprayed from the top of the tower, the alkali solution absorbs harmful substances to generate carbonate, and under the action of oxidant, further reaction generates elemental sulfur, and the purified gas from the top of the tower enters the next process after gas-liquid separation;

[0004] But the nozzle is easy to be blocked after long time contact with flue gas, and cannot uniformly spray inside in all directions, resulting in poor desulfurization effect, therefore the staff in this field proposes a flue gas desulfurization tower with uniform spraying mechanism. CONTENT OF THE INVENTION

[0005] The purpose of the patent is to provide a flue gas desulfurization tower with uniform spraying mechanism to solve the problems raised in the background.

[0006] To achieve the above purpose, the patent provides the following technical scheme: a flue gas desulfurization tower with uniform spraying mechanism, comprising a desulfurization tower body and a liquid inlet pipe, a smoke inlet pipe is inserted and installed on the lower end side wall of the desulfurization tower body, a smoke outlet pipe is inserted and installed on the upper end of the desulfurization tower body, and a liquid inlet pipe is inserted and installed on the side wall of the desulfurization tower body;

[0007] A spraying pipe is installed in the inner cavity of the desulfurization tower body, a cleaning mechanism is installed on the upper wall of the spraying pipe, the cleaning mechanism comprises a connecting frame, a motor housing, a motor, a rotating rod and a cleaning brush, the connecting frame is installed on the upper wall of the spraying pipe, the lower wall of the connecting frame is provided with the motor housing, the motor is installed in the motor housing, the motor is electrically connected with the external power supply, the output end of the motor penetrates the lower wall of the motor housing and is provided with the rotating rod, the upper wall of the rotating rod is provided with the cleaning brush, and the cleaning brush can be attached to the lower wall of the spraying pipe.

[0008] Preferably, the spraying pipe comprises an adapter pipe, an annular pipe and a spraying head, one end of the adapter pipe is inserted and installed in the liquid inlet pipe, the other end of the adapter pipe is provided with an end cap, the lower wall of the adapter pipe is welded with the annular pipe, the annular pipe is in communication with the inner cavity of the adapter pipe, the lower wall of the annular pipe is inserted and installed with the spraying head, and the cleaning brush can be attached to the spraying head.

[0009] Preferably, the cleaning brush comprises a shell, a sliding plate, a spring and a brush, the shell is installed on the upper wall of the rotating rod, the inner cavity of the shell is slidingly installed with the sliding plate, the inner side wall of the shell is installed with the spring, the spring is attached to the side wall of the sliding plate, and the brush is installed on the side wall of the sliding plate.

[0010] Preferably, the lower part of the inner cavity of the desulfurizing tower body is installed with a liquid storage tank, the side wall of the desulfurizing tower body is installed with a circulating pump, the circulating pump is electrically connected with an external power source, the input end of the circulating pump penetrates through the side wall of the desulfurizing tower body and is connected with the inner cavity of the liquid storage tank, and the output end of the circulating pump is connected with an external regeneration tank.

[0011] Preferably, the upper wall of the annular pipe is welded with a support rod, and the support rod is installed on the inner wall of the desulfurizing tower body.

[0012] Preferably, the side wall of the desulfurizing tower body is provided with an annular groove, the end of the rotating rod away from the motor is rotatably installed with a rolling wheel, the rolling wheel is inserted into the annular groove, and the rolling wheel can move in the annular groove.

[0013] Compared with the prior art, the patent has the following beneficial effects:

[0014] The motor in the cleaning mechanism drives the rotating rod and the cleaning brush to rotate, so that the spray pipe can be cleaned, thereby avoiding the blockage of the spray head in the spray pipe, causing uneven spraying and affecting the desulfurization effect of the flue gas.

[0015] In addition, the spring is arranged in the cleaning brush, which provides a supporting force for the sliding plate through the spring, so that the brush can be closely attached to the spray head, thereby improving the cleaning effect of the spray head. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the patent is shown in the figure.

[0017] Figure 2 The structure of the spray pipe of the patent is shown in the figure.

[0018] Figure 3 The structure of the cleaning mechanism of the patent is shown in the figure.

[0019] Figure 4 The structure of the liquid storage tank of the patent is shown in the figure.

[0020] In the figure: 1 desulfurization tower main body, 2 liquid inlet pipe, 3 smoke inlet pipe, 4 smoke outlet pipe, 5 spray pipe, 51 adapter pipe, 52 annular pipe, 53 spray head, 6 cleaning mechanism, 61 connecting frame, 62 motor housing, 63 motor, 64 rotating rod, 65 cleaning brush, 7 end cover, 8 liquid storage tank, 9 circulating pump, 10 support rod, 11 annular groove, 12 rolling wheel, 651 outer shell, 652 sliding plate, 653 spring, 654 bristles. DETAILED DESCRIPTION

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

[0022] Please refer to Figures 1-3 The present patent provides a technical solution: a flue gas desulfurization tower with a uniform spraying mechanism, comprising a desulfurization tower main body 1 and a liquid inlet pipe 2, a smoke inlet pipe 3 is inserted and installed at the lower end side wall of the desulfurization tower main body 1, a smoke outlet pipe 4 is inserted and installed at the upper end of the desulfurization tower main body 1, and the liquid inlet pipe 2 is inserted and installed at the side wall of the desulfurization tower main body 1.

[0023] The liquid inlet pipe 2 is in communication with the external regeneration tank, so that the regenerated desulfurization liquid in the regeneration tank is delivered into the spray pipe 5, and then sprayed out through the spray head 53 to perform desulfurization treatment on the flue gas.

[0024] The inner cavity of the desulfurization tower main body 1 is provided with a spray pipe 5, the upper wall of the spray pipe 5 is provided with a cleaning mechanism 6, the cleaning mechanism 6 comprises a connecting frame 61, a motor housing 62, a motor 63, a rotating rod 64, and a cleaning brush 65, the connecting frame 61 is installed on the upper wall of the spray pipe 5, the lower wall of the connecting frame 61 is provided with the motor housing 62, the motor 63 is installed in the motor housing 62, the motor 63 is electrically connected with an external power supply, the output end of the motor 63 penetrates through the lower wall of the motor housing 62 and is provided with the rotating rod 64, the upper wall of the rotating rod 64 is provided with the cleaning brush 65, and the cleaning brush 65 can be attached to the lower wall of the spray pipe 5.

[0025] Because the small impurities in the flue gas are easy to adhere to the spray head 53 when the spray pipe 5 contacts the flue gas, the spray head 53 is easy to be blocked, which leads to uneven spraying of the desulfurization liquid and affects the desulfurization effect of the flue gas, so the device is provided with the cleaning mechanism 6 above the spray pipe 5, the motor 63 is started to drive the rotating rod 64 and the cleaning brush 65 to rotate, the cleaning brush 65 contacts the spray head 53 to clean it, so that the spray head 53 is prevented from being blocked and uneven spraying is prevented.

[0026] Specifically, the spray pipe 5 comprises an adapter pipe 51, an annular pipe 52 and a spray head 53, one end of the adapter pipe 51 is inserted into the liquid inlet pipe 2, the other end of the adapter pipe 51 is provided with the end cap 7, the lower wall of the adapter pipe 51 is welded with the annular pipe 52, the annular pipe 52 is communicated with the inner cavity of the adapter pipe 51, the lower wall of the annular pipe 52 is inserted into the spray head 53, and the cleaning brush 65 can be attached to the spray head 53.

[0027] Specifically, the cleaning brush 65 comprises a shell 651, a sliding plate 652, a spring 653 and brush hairs 654, the shell 651 is installed on the upper wall of the rotating rod 64, the inner cavity of the shell 651 is slidably installed with the sliding plate 652, the inner side wall of the shell 651 is installed with the spring 653, the spring 653 is attached to the side wall of the sliding plate 652, and the brush hairs 654 are installed on the side wall of the sliding plate 652.

[0028] Through the setting of the spring 653, the sliding plate 652 can be provided with a pushing force, so that the brush hairs 654 can be closely attached to the spray head 53, and the cleaning effect of the spray head 53 is guaranteed.

[0029] Specifically, the liquid storage tank 8 is installed below the inner cavity of the desulfurization tower body 1, the circulating pump 9 is installed on the side wall of the desulfurization tower body 1, the circulating pump 9 is electrically connected with an external power supply, the input end of the circulating pump 9 penetrates through the side wall of the desulfurization tower body 1 and is communicated with the inner cavity of the liquid storage tank 8, and the output end of the circulating pump 9 is communicated with an external regeneration tank.

[0030] The liquid storage tank 8 can collect the sprayed desulfurization liquid, and then the used desulfurization liquid can be pumped into the external regeneration tank by the circulating pump 9 for regeneration, and the regenerated desulfurization liquid can be reused.

[0031] Specifically, the annular pipe 52 is welded with a support rod 10, and the support rod 10 is installed on the inner wall of the desulfurization tower body 1.

[0032] Specifically, the annular groove 11 is formed in the side wall of the desulfurization tower body 1, the rolling wheel 12 is rotatably installed at the end of the rotating rod 64 away from the motor 63, the rolling wheel 12 is inserted into the annular groove 11, and the rolling wheel 12 can move in the annular groove 11.

[0033] Working principle: the flue gas enters the desulfurization tower body 1 through the flue gas inlet pipe 3, at this time the desulfurization liquid enters the spray pipe 5 through the liquid inlet pipe 2, and then is sprayed out through the spray head 53 in the spray pipe 5, when the desulfurization liquid contacts with the flue gas, the desulfurization liquid absorbs the harmful substances in the flue gas to generate carbonate, under the action of the oxidant, the carbonate further reacts to generate elemental sulfur, and then the purified flue gas is discharged through the flue gas outlet pipe 4 on the upper side of the desulfurization tower body 1, and after gas-liquid separation, enters the next process;

[0034] If the spray head 53 is blocked, resulting in uneven spraying, the motor 63 can be started to drive the rotating rod 64 and the cleaning brush 65 to rotate, and the cleaning brush 65 is in contact with the spray head 53 to clean it, thereby ensuring that the spray head 53 is not blocked and preventing uneven spraying.

[0035] It is apparent to those skilled in the art that the present patent is not limited to the details of the foregoing exemplary embodiments, and that the present patent can be implemented in other particular forms without departing from the spirit or essential characteristics of the present patent. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present patent being defined by the appended claims rather than by the foregoing description, and it is intended that all changes that come within the meaning and range of equivalency of the claims are embraced therein. No reference signs in the claims should be considered to be limiting the scope of the claims.

[0036] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or option described in the specification. In addition, it should be understood that embodiments of the present patent can include any one of the disclosed embodiments, or any combination of the disclosed embodiments.

Claims

1. A flue gas desulfurization tower with uniform spraying mechanism, comprising a desulfurization tower body (1) and a liquid inlet pipe (2), characterized in that: The lower end side wall of the desulfurization tower body (1) is insertedly installed with a smoke inlet pipe (3), the upper end of the desulfurization tower body (1) is insertedly installed with a smoke outlet pipe (4), and the side wall of the desulfurization tower body (1) is insertedly installed with a liquid inlet pipe (2); The inner cavity of the desulfurization tower body (1) is installed with a spray pipe (5), the upper wall of the spray pipe (5) is installed with a cleaning mechanism (6), the cleaning mechanism (6) comprises a connecting frame (61), a motor housing (62), a motor (63), a rotating rod (64) and a cleaning brush (65), the connecting frame (61) is installed on the upper wall of the spray pipe (5), the lower wall of the connecting frame (61) is installed with the motor housing (62), the motor (63) is installed in the motor housing (62), the motor (63) is electrically connected with an external power supply, the output end of the motor (63) penetrates the lower wall of the motor housing (62) and is installed with the rotating rod (64), the upper wall of the rotating rod (64) is installed with the cleaning brush (65), and the cleaning brush (65) can be attached to the lower wall of the spray pipe (5).

2. A flue gas desulphurization tower with uniform showering mechanism as claimed in claim 1 wherein: The spray pipe (5) comprises an adapter pipe (51), an annular pipe (52) and a spray head (53), one end of the adapter pipe (51) is insertedly installed in the liquid inlet pipe (2), the other end of the adapter pipe (51) is installed with an end cover (7), the lower wall of the adapter pipe (51) is welded with the annular pipe (52), the annular pipe (52) is in communication with the inner cavity of the adapter pipe (51), the lower wall of the annular pipe (52) is insertedly installed with the spray head (53), and the cleaning brush (65) can be attached to the spray head (53).

3. A flue gas desulphurization tower with uniform showering mechanism as claimed in claim 1 wherein: The cleaning brush (65) comprises a shell (651), a sliding plate (652), a spring (653) and bristles (654), the shell (651) is installed on the upper wall of the rotating rod (64), the inner cavity of the shell (651) is slidably installed with the sliding plate (652), the inner side wall of the shell (651) is installed with the spring (653), the spring (653) is attached to the side wall of the sliding plate (652), and the bristles (654) are installed on the side wall of the sliding plate (652).

4. A flue gas desulphurization tower with uniform showering mechanism as claimed in claim 1 wherein: The lower part of the inner cavity of the desulfurization tower body (1) is installed with a liquid storage tank (8), the side wall of the desulfurization tower body (1) is installed with a circulating pump (9), the circulating pump (9) is electrically connected with an external power supply, the input end of the circulating pump (9) penetrates the side wall of the desulfurization tower body (1) and is in communication with the inner cavity of the liquid storage tank (8), and the output end of the circulating pump (9) is in communication with an external regeneration tank.

5. A flue gas desulphurization tower with uniform showering mechanism as claimed in claim 2 wherein: The upper wall of the annular pipe (52) is welded with a supporting rod (10), and the supporting rod (10) is installed on the inner wall of the desulfurization tower body (1).

6. A flue gas desulphurization tower with uniform showering mechanism as claimed in claim 1 wherein: The side wall of the desulfurization tower body (1) is provided with an annular groove (11), one end of the rotating rod (64) away from the motor (63) is rotatably installed with a rolling wheel (12), the rolling wheel (12) is inserted into the annular groove (11), and the rolling wheel (12) can move in the annular groove (11).

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