CN215138287U

CN215138287U - SCR denitrification facility

Info

Publication number: CN215138287U
Application number: CN202121409765.2U
Authority: CN
Inventors: 单科
Original assignee: Jiangsu Tianyao Industrial Technology Co ltd
Current assignee: Jiangsu Tianyao Industrial Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-14
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a SCR denitrification facility relates to flue gas denitration technical field, including dust removal mechanism, dust removal mechanism includes the casing, the inside of casing is provided with first inner chamber and second inner chamber, be provided with porous partition plate between first inner chamber and the second inner chamber, install the electrical cathode mechanism through first mounting bracket in the first inner chamber, the electrical cathode mechanism includes the mounting panel. Compared with the prior art, the utility model discloses an utilize the electric negative pole and the electric positive pole in the dust removal mechanism to carry out the dust absorption in the flue gas, thereby make the filter bag vibrations shake off the dust utilizing the flow of flue gas, utilize slag extractor to construct the discharge dust afterwards, improved the dust collection efficiency of dust in the flue gas greatly, adopt the heating cabinet mechanism to dry the flue gas that gets into in the dust removal mechanism simultaneously, keep the dust in the flue gas to be in dry state, further improved the dust collection efficiency of device.

Description

SCR denitrification facility

Technical Field

The utility model relates to a flue gas denitration technical field especially relates to a SCR denitrification facility.

Background

Selective Catalytic Reduction (SCR) is currently recognized as the most effective NOx control technology, the denitration efficiency can reach more than 90% at most, it is the most mature denitration technology, its principle is under the effect of catalyst, use NH3 as the reductant, preferentially with NOx reduction production nitrogen gas and water in the flue gas, for avoiding dust in the flue gas to influence the effect of SCR denitration, dust collecting equipment needs to be set up before the denitrification facility to carry out the dust removal operation usually, but prior art is mostly filtration formula dust removal, the dust removal effect is not ideal, in case the filter core blocks up then need shut down to maintain, seriously influence work efficiency, use and exist inadequately, we propose an SCR denitrification facility for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model provides a SCR denitrification facility has solved the filtration formula dust removal that prior art is many, and dust removal effect is not ideal, in case the filter core blocks up then need shut down and carry out the technical problem of maintaining.

In order to solve the technical problem, the SCR denitration device provided by the utility model comprises a dust removal mechanism, the dust removing mechanism comprises a shell, a first inner cavity and a second inner cavity are arranged in the shell, a porous partition board is arranged between the first inner cavity and the second inner cavity, an electric cathode mechanism is arranged in the first inner cavity through a first mounting frame, the electric cathode mechanism comprises an installation plate, the bottom of the installation plate is provided with a filter bag through a framework, the bottom of the mounting plate is provided with an electric cathode, the second inner cavity is internally provided with an electric anode through a second mounting frame, the two ends of the top of the shell are both provided with sealing plates, the side surface of the dust removal mechanism is connected with the SCR reactor through an air outlet pipe, the side of the dust removing mechanism far away from the air outlet pipe is provided with an air inlet mechanism through a heating box mechanism, and the bottom of the dust removing mechanism is provided with a slag discharging mechanism.

Preferably, the heating box mechanism comprises a box body arranged on the side face of the shell, electric heating rods are arranged inside the box body, the number of the electric heating rods is a plurality of groups, the electric heating rods are located inside the box body and are symmetrically distributed, and the air inlet mechanism is arranged on the side face, far away from the shell, of the box body.

Preferably, a branch pipe is installed at the top of the box body, and a blower is installed at one end, far away from the box body, of the branch pipe.

Preferably, the air inlet mechanism comprises an air inlet pipe arranged on the side face of the box body, air distribution plates are arranged inside the air inlet pipe, and the number of the air distribution plates is a plurality of groups.

Preferably, the slag discharging mechanism comprises a first ash bucket and a second ash bucket which are fixed at the bottom of the shell, a slag discharging pipe is fixed at the bottom of the first ash bucket and the bottom of the second ash bucket, a motor is installed on the side face of the slag discharging pipe, and an output shaft of the motor is inserted into the slag discharging pipe and connected with a screw rod.

Preferably, first ash bucket and second ash bucket are hopper-shaped structure, first ash bucket and first inner chamber intercommunication, second ash bucket and second inner chamber intercommunication.

Compared with the prior art, the utility model provides a pair of SCR denitrification facility has following beneficial effect:

the utility model provides a SCR denitrification facility carries out the dust absorption in the flue gas through the electric negative pole and the electric positive pole that utilize in the dust removal mechanism, thereby makes the filter bag vibrations shake off the dust utilizing the flow of flue gas, utilizes slag extractor discharge dust afterwards, has improved the dust collection efficiency of dust in the flue gas greatly.

The utility model provides a SCR denitrification facility adopts heating cabinet mechanism to dry the flue gas that gets into in the dust removal mechanism, keeps the dust in the flue gas to be in dry state, has further improved the dust collection efficiency of device.

Drawings

Fig. 1 is a front view of an SCR denitration device according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view of the electro-cathode mechanism of FIG. 2;

FIG. 4 is a cross-sectional view of the heating tank mechanism of FIG. 1;

FIG. 5 is an isometric view of the intake mechanism of FIG. 1;

fig. 6 is a sectional view of the slag discharge mechanism of fig. 1.

Reference numbers in the figures: the device comprises a dust removal mechanism 1, a shell 11, a first inner cavity 12, a second inner cavity 13, a porous partition 14, a first mounting frame 15, an electric cathode mechanism 16, a mounting plate 161, a framework 162, a filter bag 163, an electric cathode 164, a second mounting frame 17, an electric anode 18, a sealing plate 19, a gas outlet pipe 2, a heating box mechanism 3, a box body 31, an electric heating rod 32, a branch pipe 33, a blower 34, an air inlet mechanism 4, an air inlet pipe 41, a gas distribution plate 42, a slag discharge mechanism 5, a first ash bucket 51, a second ash bucket 52, a slag discharge pipe 53, a motor 54 and a screw rod 55.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An embodiment, by figure 1-6, the utility model provides a SCR denitrification facility, including dust removal mechanism 1, dust removal mechanism 1 includes casing 11, casing 11's inside is provided with first inner chamber 12 and second inner chamber 13, be provided with porous partition 14 between first inner chamber 12 and the second inner chamber 13, install electric cathode mechanism 16 through first mounting bracket 15 in the first inner chamber 12, electric cathode mechanism 16 includes mounting panel 161, filter bag 163 is installed through skeleton 162 in mounting panel 161's bottom, electric cathode 164 is installed to mounting panel 161's bottom, install electric anode 18 through second mounting bracket 17 in the second inner chamber 13, the both ends at casing 11's top all are provided with closing plate 19, dust removal mechanism 1's side is passed through outlet duct 2 and is connected with the SCR reactor, dust removal mechanism 1 keeps away from the side of outlet duct 2 and installs air inlet mechanism 4 through heating box mechanism 3, slag removal mechanism 5 is installed to dust removal mechanism 1's bottom.

Heating cabinet mechanism 3 is including installing the box 31 in casing 11 side, the internally mounted of box 31 has glow stick 32, the quantity of glow stick 32 is a plurality of groups, the inside that a plurality of groups glow stick 32 are located box 31 is the symmetric distribution, air inlet mechanism 4 is installed in the side of casing 11 is kept away from to box 31, branch pipe 33 is installed at the top of box 31, branch pipe 33 is kept away from the one end of box 31 and is installed forced draught blower 34, air inlet mechanism 4 is including installing the air-supply line 41 in box 31 side, the inside of air-supply line 41 is provided with gas distribution board 42, the quantity of gas distribution board 42 is a plurality of groups.

The slag discharging mechanism 5 comprises a first ash bucket 51 and a second ash bucket 52 fixed at the bottom of the shell 11, a slag discharging pipe 53 is fixed at the bottom of the first ash bucket 51 and the bottom of the second ash bucket 52, a motor 54 is installed on the side surface of the slag discharging pipe 53, an output shaft of the motor 54 is inserted into the slag discharging pipe 53 and connected with a screw 55, the first ash bucket 51 and the second ash bucket 52 are of funnel-shaped structures, the first ash bucket 51 is communicated with the first inner cavity 12, and the second ash bucket 52 is communicated with the second inner cavity 13.

The working principle is as follows:

the implementation steps of innovation points are as follows:

the first step is as follows: the air inlet mechanism 4 of the device is connected with the flue, the air outlet pipe 2 of the device is connected with the SCR reactor, the device is connected with a power supply and starts the electric cathode 154, the electric anode 18, the electric heating rod 32, the blower 34 and the motor 54;

the second step is that: the electric heating rod 32 is electrified and heated to dry the flue gas entering the air inlet mechanism 4 to reduce the moisture in the flue gas, the air feeder 34 assists the flue gas to enter the dust removal mechanism 1 to increase the air flow, the flue gas enters the second inner cavity 13, the dust is positively charged through the electric anode 18 and then enters the first inner cavity 12 through the porous partition 14, the positively charged dust is attracted and adhered to the filter bag 163 by the electric cathode, the dedusted flue gas enters the SCR reactor through the air outlet pipe 2, and the flowing filter bag of the flue gas vibrates in 163, so that the dust falls into the slag removal mechanism 5;

the third step: the motor 54 drives the screw 55 to rotate, and dust enters the slag discharge pipe 53 through the first dust hopper 51 and the second dust hopper 52 and is extruded by the screw 55.

To sum up, compare in prior art, the utility model discloses an utilize the electric negative pole and the electric positive pole in the dust removal mechanism to carry out the dust absorption in the flue gas, thereby make the filter bag vibrations shake off the dust utilizing the flow of flue gas, utilize slag extractor mechanism discharge dust afterwards, improved the dust collection efficiency of dust in the flue gas greatly, adopt the heating cabinet mechanism to dry the flue gas that gets into in the dust removal mechanism simultaneously, keep the dust in the flue gas to be in dry state, further improved the dust collection efficiency of device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a SCR denitrification facility, includes dust removal mechanism (1), its characterized in that: the dust removal mechanism (1) comprises a shell (11), a first inner cavity (12) and a second inner cavity (13) are arranged inside the shell (11), a porous partition plate (14) is arranged between the first inner cavity (12) and the second inner cavity (13), an electric cathode mechanism (16) is installed in the first inner cavity (12) through a first installation frame (15), the electric cathode mechanism (16) comprises an installation plate (161), a filter bag (163) is installed at the bottom of the installation plate (161) through a framework (162), an electric cathode (164) is installed at the bottom of the installation plate (161), an electric anode (18) is installed in the second inner cavity (13) through a second installation frame (17), sealing plates (19) are arranged at two ends of the top of the shell (11), and the side face of the dust removal mechanism (1) is connected with an SCR reactor through an air outlet pipe (2), the side of the dust removing mechanism (1) far away from the air outlet pipe (2) is provided with an air inlet mechanism (4) through a heating box mechanism (3), and the bottom of the dust removing mechanism (1) is provided with a slag discharging mechanism (5).

2. The SCR denitration device according to claim 1, wherein the heating box mechanism (3) comprises a box body (31) installed on the side of the housing (11), the electric heating rods (32) are installed inside the box body (31), the number of the electric heating rods (32) is a plurality of groups, the groups of the electric heating rods (32) are symmetrically distributed inside the box body (31), and the air inlet mechanism (4) is installed on the side of the box body (31) far away from the housing (11).

3. An SCR denitration device as claimed in claim 2, wherein a branch pipe (33) is installed on the top of the box body (31), and a blower (34) is installed on one end of the branch pipe (33) far away from the box body (31).

4. The SCR denitration device according to claim 2, wherein the air intake mechanism (4) comprises an air intake pipe (41) installed on the side surface of the box body (31), the air intake pipe (41) is internally provided with air distribution plates (42), and the number of the air distribution plates (42) is a plurality of groups.

5. The SCR denitration device according to claim 1, wherein the deslagging mechanism (5) comprises a first ash bucket (51) and a second ash bucket (52) fixed at the bottom of the housing (11), a deslagging pipe (53) is fixed at the bottom of the first ash bucket (51) and the bottom of the second ash bucket (52), a motor (54) is installed on the side surface of the deslagging pipe (53), and an output shaft of the motor (54) is inserted into the deslagging pipe (53) and connected with a screw (55).

6. An SCR denitration device as claimed in claim 5, wherein the first ash hopper (51) and the second ash hopper (52) are both funnel-shaped structures, the first ash hopper (51) is communicated with the first inner cavity (12), and the second ash hopper (52) is communicated with the second inner cavity (13).