CN213408244U

CN213408244U - Boiler flue gas denitration device capable of preventing blockage

Info

Publication number: CN213408244U
Application number: CN202021993753.4U
Authority: CN
Inventors: 张卿; 李欣欣; 李占春; 张晓燕; 戴金殿; 葛龙; 郭姗姗; 宋振宏; 李曙光
Original assignee: Beijing Yutai Environmental Protection Engineering Co ltd
Current assignee: Beijing Yutai Environmental Protection Engineering Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-11
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a can prevent boiler flue gas denitrification facility of jam, which comprises a bod, first denitration chamber, second denitration chamber and third denitration chamber have from left to right been seted up in proper order to the inside of organism, first filter screen is installed with the junction in second denitration chamber in first denitration chamber, the second filter screen is installed with the junction in third denitration chamber in second denitration chamber, the right side wall of organism has driving motor through the bolt fastening, driving motor's output is connected with the bull stick, the upper and lower both sides on pole body surface that the bull stick is in first denitration intracavity all are fixed with first clearance board. The utility model discloses a dust impurity of first filter screen and second filter screen in to the flue gas is intercepted, avoids dust impurity to block up the catalyst board, drives first clearance board and second clearance board through driving motor work simultaneously and rotates, clears up first filter screen and second filter screen, has avoided first filter screen and second filter screen to be blockked up effectively.

Description

Boiler flue gas denitration device capable of preventing blockage

Technical Field

The utility model relates to a boiler flue gas denitration field, concretely relates to can prevent boiler flue gas denitration device of jam.

Background

The flue gas denitration technology mainly comprises a dry method and a wet method. Compared with the wet flue gas denitration technology, the dry flue gas denitration technology has the main advantages that: low basic investment, simple equipment and process, high NOx removing efficiency, no wastewater and waste treatment and difficult secondary pollution.

At present, the catalyst plate is often adopted to carry out denitration treatment on boiler flue gas, but because a large amount of dust and sundry scraps are contained in the boiler flue gas, the catalyst plate is easy to block, and therefore the denitration efficiency of the boiler flue gas is greatly reduced.

Therefore, it is necessary to invent a boiler flue gas denitration device capable of preventing blockage to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can prevent boiler flue gas denitrification facility of jam, through be provided with first filter screen between first denitration chamber and second denitration chamber, be provided with the second filter screen between second denitration chamber and third denitration chamber, intercept through the dust impurity of first filter screen and second filter screen in to the flue gas, avoid dust impurity to block up the catalyst board, boiler flue gas denitration efficiency has been improved, drive first clearance board and second clearance board through driving motor work simultaneously and rotate, clear up first filter screen and second filter screen, it is blockked up to have avoided first filter screen and second filter screen effectively, need not to dismantle first filter screen and second filter screen and get off and clear up, and is very convenient, with the above-mentioned weak point in the solution technique.

In order to achieve the above object, the present invention provides the following technical solutions: a boiler flue gas denitration device capable of preventing blockage comprises a machine body, wherein a first denitration cavity, a second denitration cavity and a third denitration cavity are sequentially arranged in the machine body from left to right, the first denitration cavity is communicated with the second denitration cavity, a first filter screen is arranged at the joint of the first denitration cavity and the second denitration cavity, the second denitration cavity is communicated with the third denitration cavity, a second filter screen is arranged at the joint of the second denitration cavity and the third denitration cavity, a catalyst plate is fixed in the third denitration cavity at equal intervals, a driving motor is fixed on the right side wall of the machine body through bolts, the output end of the driving motor is connected with a rotating rod, the rotating rod sequentially penetrates through the catalyst plate, the second filter screen and the first filter screen to extend into the first denitration cavity, and the right end, far away from the driving motor, of the rotating rod is movably connected with the left inner wall of the first denitration cavity, the upper side and the lower side of the surface of the rod body of the rotating rod in the first denitration cavity are respectively fixed with a first cleaning plate, one side of the first cleaning plate, which is close to the first filter screen, is provided with first bristles, the first bristles are in surface contact with the first filter screen, the upper side and the lower side of the surface of the rod body of the rotating rod in the second denitration cavity are respectively fixed with a second cleaning plate, one side of the second cleaning plate, which is close to the second filter screen, is provided with second bristles, the second bristles are in surface contact with the second filter screen, the top of the first denitration cavity is provided with a first cavity disc, the bottom of the first cavity disc is provided with first atomizing nozzles at equal intervals, the top of the second denitration cavity is provided with a second cavity disc, the bottom of the second cavity disc is provided with second atomizing nozzles at equal intervals, the top of the machine body is provided with a medicament input main pipe, and the top of the first cavity disc is connected with a first branch pipe, the upper end of the first branch pipe is connected with the medicament input header pipe, the top of the second cavity disc is connected with the second branch pipe, and the upper end of the second branch pipe is connected with the medicament input header pipe.

Preferably, the bottom of the machine body is provided with supporting legs at equal intervals, the left side of the machine body is provided with a smoke inlet pipe, the smoke inlet pipe is communicated with the first denitration chamber, the right side of the machine body is provided with an exhaust pipe, and the exhaust pipe is communicated with the third denitration chamber.

Preferably, the first stirring plates are fixed on the upper side and the lower side of the surface of the rod body of the rotating rod in the first denitration cavity.

Preferably, the upper side and the lower side of the surface of the rod body of the rotating rod in the second denitration cavity are both fixed with second stirring plates.

Preferably, the mesh diameter of the second filter is smaller than the mesh diameter of the first filter.

Preferably, the bottom of the first denitration chamber is set to be conical, the bottom of the first denitration chamber is provided with a first sewage discharge port, and a first valve is installed on the first sewage discharge port.

Preferably, the bottom of the second denitration chamber is set to be conical, a second sewage draining outlet is formed in the bottom of the second denitration chamber, and a second valve is installed on the second sewage draining outlet.

Preferably, the top of the first cavity disc is connected with the top wall of the first denitration chamber through a first support rod, and the top of the second cavity disc is connected with the top wall of the second denitration chamber through a second support rod.

In the technical scheme, the utility model provides a technological effect and advantage:

1. the first filter screen is arranged between the first denitration chamber and the second denitration chamber, the second filter screen is arranged between the second denitration chamber and the third denitration chamber, dust impurities in flue gas are intercepted through the first filter screen and the second filter screen, the catalyst plate is prevented from being blocked by the dust impurities, the flue gas denitration efficiency of the boiler is improved, meanwhile, the first cleaning plate and the second cleaning plate are driven to rotate through the work of the driving motor, the first filter screen and the second filter screen are cleaned, the first filter screen and the second filter screen are effectively prevented from being blocked, the first filter screen and the second filter screen are not required to be detached for cleaning, and the first filter screen and the second filter screen are quite convenient to clean;

2. through being provided with first cavity disc in first denitration intracavity, first atomizer is installed to the bottom of first cavity disc equidistant, is provided with second cavity disc in second denitration intracavity, and second atomizer is installed to the bottom of second cavity disc equidistant for the flue gas washes the flue gas through the denitration medicament before the catalyst board is handled, has improved boiler flue gas denitration efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a bottom view of a first cavity disk of the present invention;

fig. 4 is a cross-sectional view of a first cavity disk of the present invention.

Description of reference numerals:

the device comprises a machine body 1, a first denitration chamber 2, a second denitration chamber 3, a third denitration chamber 4, a first filter screen 5, a second filter screen 6, a catalyst plate 7, a driving motor 8, a rotating rod 9, a first cleaning plate 10, first bristles 11, a second cleaning plate 12, second bristles 13, a first cavity disc 14, a first atomizing nozzle 15, a second cavity disc 16, a second atomizing nozzle 17, a main medicament input pipe 18, a first branch pipe 19, a second branch pipe 20, supporting legs 21, a smoke inlet pipe 22, an exhaust pipe 23, a first stirring plate 24, a second stirring plate 25, a first drain outlet 26 and a second drain outlet 27.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a boiler flue gas denitration device capable of preventing blockage, which comprises a machine body 1, wherein a first denitration chamber 2, a second denitration chamber 3 and a third denitration chamber 4 are sequentially arranged in the machine body 1 from left to right, the first denitration chamber 2 is communicated with the second denitration chamber 3, a first filter screen 5 is arranged at the joint of the first denitration chamber 2 and the second denitration chamber 3, the second denitration chamber 3 is communicated with the third denitration chamber 4, a second filter screen 6 is arranged at the joint of the second denitration chamber 3 and the third denitration chamber 4, a catalyst plate 7 is equidistantly fixed in the third denitration chamber 4, a driving motor 8 is fixed on the right side wall of the machine body 1 through bolts, the output end of the driving motor 8 is connected with a rotating rod 9, the rotating rod 9 sequentially penetrates through the catalyst plate 7, the second filter screen 6 and the first filter screen 5 and extends into the first denitration chamber 2, the right end of the rotating rod 9, which is far away from the driving motor 8, is movably connected with the inner wall of the left side of the first denitration chamber 2, the upper and lower sides of the surface of the rod body of the rotating rod 9, which is positioned in the first denitration chamber 2, are fixed with first cleaning plates 10, one side of the first cleaning plates 10, which is close to the first filter screen 5, is provided with first bristles 11, the first bristles 11 are in surface contact with the first filter screen 5, the upper and lower sides of the surface of the rod body of the rotating rod 9, which is positioned in the second denitration chamber 3, are fixed with second cleaning plates 12, one side of the second cleaning plates 12, which is close to the second filter screen 6, is provided with second bristles 13, the second bristles 13 are in surface contact with the second filter screen 6, the top of the first denitration chamber 2 is provided with a first cavity disc 14, the bottom of the first cavity disc 14 is provided with first atomizing nozzles 15 at equal intervals, the top of the second denitration chamber 3 is provided with a second cavity disc, second atomizer 17 is installed to the bottom of second cavity disc 16 equidistant, the top of organism 1 is provided with medicament input house steward 18, the top of first cavity disc 14 is connected with first branch pipe 19, the upper end of first branch pipe 19 is connected with medicament input house steward 18, the top of second cavity disc 16 is connected with second branch pipe 20, the upper end of second branch pipe 20 is connected with medicament input house steward 18.

Further, in the above technical solution, the bottom of the machine body 1 is provided with the supporting legs 21 at equal intervals, the left side of the machine body 1 is provided with the smoke inlet pipe 22, the smoke inlet pipe 22 is communicated with the first denitration chamber 2, the right side of the machine body 1 is provided with the exhaust pipe 23, the exhaust pipe 23 is communicated with the third denitration chamber 4, the boiler smoke enters the interior of the machine body 1 through the smoke inlet pipe 22 for denitration treatment, and is discharged through the exhaust pipe 23 after the denitration treatment is completed.

Further, in the above technical scheme, the upper and lower both sides that the bull stick 9 is located the pole body surface in first denitration chamber 2 all are fixed with first stirring board 24, drive bull stick 9 through driving motor 8 work and rotate, and bull stick 9 rotates and drives first stirring board 24 and rotate, and first stirring board 24 rotates and stirs the spray that flue gas and the denitration medicament that gets into in first denitration chamber 2 produced for the spray that flue gas and denitration medicament produced contacts completely, has improved flue gas denitration effect.

Further, in the above technical scheme, the upper and lower both sides of the pole body surface that the bull stick 9 is in second denitration chamber 3 all are fixed with second stirring board 25, drive bull stick 9 through driving motor 8 work and rotate, and bull stick 9 rotates and drives second stirring board 25 and rotate, and second stirring board 25 rotates and stirs the spraying that flue gas and denitration medicament that gets into in second denitration chamber 3 produced for the spraying contact that flue gas and denitration medicament produced is complete, has improved flue gas denitration effect.

Furthermore, in the above technical scheme, the diameter of the meshes of the second filter screen 6 is smaller than that of the meshes of the first filter screen 5, so that the effect of intercepting dust and impurities in the flue gas is improved.

Further, in above-mentioned technical scheme, the bottom of first denitration chamber 2 sets up to the toper, the bottom of first denitration chamber 2 is provided with first drain outlet 26, install first valve on the first drain outlet 26, to the sewage storage after the flue gas washing in the bottom of first denitration chamber 2, open the first valve on the first drain outlet 26 for sewage in the first denitration chamber 2 can be discharged through first drain outlet 26.

Further, in the above technical scheme, the bottom of the second denitration chamber 3 is set to be conical, the bottom of the second denitration chamber 3 is provided with a second sewage outlet 27, a second valve is installed on the second sewage outlet 27, and the second valve on the second sewage outlet 27 is opened to store the sewage after the flue gas is washed at the bottom of the second denitration chamber 3, so that the sewage in the second denitration chamber 3 can be discharged through the second sewage outlet 27.

Further, in the above technical solution, the top of the first cavity disk 14 is connected to the top wall of the first denitration chamber 2 through a first support rod, and the top of the second cavity disk 16 is connected to the top wall of the second denitration chamber 3 through a second support rod, so that the first cavity disk 14 and the second cavity disk 16 are stably installed.

The implementation mode is specifically as follows: the denitration medicament in the medicament input header pipe 18 enters the first cavity disc 14 through the first branch pipe 19 and is sprayed out through the first atomizer 15, the denitration medicament in the medicament input header pipe 18 enters the second cavity disc 16 through the second branch pipe 20 and is sprayed out through the second atomizer 17, the driving motor 8 works to drive the second cleaning plate 12, the second stirring plate 25, the first cleaning plate 10 and the first stirring plate 24 to rotate, the boiler flue gas enters the first denitration chamber 2 through the flue gas inlet pipe 22, the denitration medicament sprayed out through the second atomizer 17 washes the flue gas in the first denitration chamber 2, the washed flue gas enters the second denitration chamber 3 through the first filter screen 5, the denitration medicament sprayed out through the second atomizer 17 washes the flue gas in the second denitration chamber 3, the washed medicament enters the third denitration chamber 4 through the second filter screen 6, the flue gas is discharged through the exhaust pipe 23 after being in contact reaction with the catalyst plate 7, the first filter screen 5 and the second filter screen 6 intercept dust impurities in the flue gas, the catalyst plate 7 is prevented from being blocked by the dust impurities, the denitration efficiency of the flue gas of the boiler is improved, meanwhile, the first cleaning plate 10 rotates to drive the first brush hairs 11 to clean the first filter screen 5, the second cleaning plate 12 rotates to drive the second brush hairs 13 to clean the second filter screen 6, the blockage of the first filter screen 5 and the second filter screen 6 is effectively avoided, the first filter screen 5 and the second filter screen 6 do not need to be disassembled for cleaning, the cleaning is very convenient, the first stirring plate 24 rotates to stir the flue gas entering the first denitration chamber 2 and the spray generated by the denitration agent, the flue gas and the spray generated by the denitration agent are in complete contact, the second stirring plate 25 rotates to stir the flue gas entering the second denitration chamber 3 and the spray generated by the denitration agent, make the spraying contact that flue gas and denitration medicament produced complete, flue gas denitration effect has been improved, the sewage storage after the flue gas washing in the first denitration chamber 2 is in the bottom of first denitration chamber 2, open the first valve on first drain 26, make sewage in the first denitration chamber 2 discharge through first drain 26, the sewage storage after the flue gas washing in the second denitration chamber 3 is in the bottom of second denitration chamber 3, open the second valve on the second drain 27, make sewage in the second denitration chamber 3 discharge through second drain 27, this embodiment has specifically solved existence among the prior art because contain a large amount of dust miscellaneous bits in the boiler flue gas, block up the catalyst board easily, thereby greatly reduced boiler flue gas denitration efficiency problem.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a boiler flue gas denitrification facility that can prevent blockking up, includes organism (1), its characterized in that: a first denitration chamber (2), a second denitration chamber (3) and a third denitration chamber (4) are sequentially arranged in the machine body (1) from left to right, the first denitration chamber (2) is communicated with the second denitration chamber (3), a first filter screen (5) is arranged at the joint of the first denitration chamber (2) and the second denitration chamber (3), the second denitration chamber (3) is communicated with the third denitration chamber (4), a second filter screen (6) is arranged at the joint of the second denitration chamber (3) and the third denitration chamber (4), catalyst plates (7) are equidistantly fixed in the third denitration chamber (4), a driving motor (8) is fixed on the right side wall of the machine body (1) through bolts, the output end of the driving motor (8) is connected with a rotating rod (9), and the rotating rod (9) sequentially penetrates through the catalyst plates (7), the second filter screen (6) and the first filter screen (5) and extends into the first denitration chamber (2), the right end of the rotating rod (9) far away from the driving motor (8) is movably connected with the inner wall of the left side of the first denitration chamber (2), the upper side and the lower side of the surface of the rod body of the rotating rod (9) in the first denitration chamber (2) are respectively fixed with a first cleaning plate (10), one side of the first cleaning plate (10) close to the first filter screen (5) is provided with first bristles (11), the first bristles (11) are in surface contact with the first filter screen (5), the upper side and the lower side of the surface of the rod body of the rotating rod (9) in the second denitration chamber (3) are respectively fixed with a second cleaning plate (12), one side of the second cleaning plate (12) close to the second filter screen (6) is provided with second bristles (13), the second bristles (13) are in surface contact with the second filter screen (6), the top of the first denitration chamber (2) is provided with a first cavity disc (14), first atomizer (15) are installed to the bottom of first cavity disc (14) equidistant, the top of second denitration chamber (3) is provided with second cavity disc (16), second atomizer (17) are installed to the bottom of second cavity disc (16) equidistant, the top of organism (1) is provided with medicament input house steward (18), the top of first cavity disc (14) is connected with first branch pipe (19), the upper end of first branch pipe (19) is connected with medicament input house steward (18), the top of second cavity disc (16) is connected with second branch pipe (20), the upper end of second branch pipe (20) is connected with medicament input house steward (18).

2. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: supporting legs (21) are installed at the bottom of the machine body (1) at equal intervals, a smoke inlet pipe (22) is arranged on the left side of the machine body (1), the smoke inlet pipe (22) is communicated with the first denitration chamber (2), an exhaust pipe (23) is installed on the right side of the machine body (1), and the exhaust pipe (23) is communicated with the third denitration chamber (4).

3. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: and the upper side and the lower side of the surface of the rod body of the rotating rod (9) in the first denitration cavity (2) are respectively and fixedly provided with a first stirring plate (24).

4. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: and second stirring plates (25) are fixed on the upper side and the lower side of the surface of the rod body of the rotating rod (9) in the second denitration cavity (3).

5. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: the diameter of the meshes of the second filter screen (6) is smaller than that of the meshes of the first filter screen (5).

6. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: the bottom of first denitration chamber (2) sets up to the toper, the bottom of first denitration chamber (2) is provided with first drain outlet (26), install first valve on first drain outlet (26).

7. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: the bottom of the second denitration chamber (3) is set to be conical, a second sewage draining outlet (27) is formed in the bottom of the second denitration chamber (3), and a second valve is installed on the second sewage draining outlet (27).

8. The boiler flue gas denitration device capable of preventing blockage according to claim 1, characterized in that: the top of the first cavity disc (14) is connected with the top wall of the first denitration chamber (2) through a first support rod, and the top of the second cavity disc (16) is connected with the top wall of the second denitration chamber (3) through a second support rod.