CN201899983U

CN201899983U - SCR denitration reactor

Info

Publication number: CN201899983U
Application number: CN2010206672832U
Authority: CN
Inventors: 李勇成
Original assignee: 李勇成
Current assignee: Shaanxi Xin Neng environmental Polytron Technologies Inc
Priority date: 2010-12-18
Filing date: 2010-12-18
Publication date: 2011-07-20
Anticipated expiration: 2020-12-18

Abstract

The utility model discloses an SCR (Selective Catalytic Reductant) denitration reactor which comprises a housing divided into a channel I and a channel II, wherein the bottom of the channel I and that of the channel II are communicated, the channel I is connected with an air inlet, a rectification layer module I, a primary catalyzer module I and a spare catalyzer module are arranged in the channel I from top to bottom at intervals, and an acoustical wave cleaning device is respectively arranged between the rectification layer module I and the primary catalyzer module I as well as between the primary catalyzer module I and the spare catalyzer module; and a rectification layer module II, a primary catalyzer module II and a primary catalyzer module III are arranged in the channel II from top to bottom at intervals, the channel II is connected with an air outlet, the primary catalyzer module I is large void catalyzer, the primary catalyzer module II and the primary catalyzer module III are small void catalyzer, and the spare catalyzer module is composed of large void catalyzer. Denitration and dust removal can be convenient and fast to realize through the SCR denitration reactor.

Description

A kind of SCR Benitration reactor

Technical field

The utility model relates to a kind of Benitration reactor, particularly a kind of SCR Benitration reactor.

Background technology

Denitration of boiler smoke mainly contains dry method and wet method, wherein the selective catalytic reduction of dry method (SCR), SNCR (SNCR), non-selective catalytic reduction (NSCR), molecular sieve, active carbon adsorption, plasma method and combined desulfurization denitrogenation method etc.; Wet method has and adopts water, acid, alkali absorption method respectively, oxidation absorption process and absorb reducing process etc.Because aspects such as cost of investment and operation, these technology are with the most use in the power station to be SCR, be SNCR secondly, other method application is less.

But, have that volume is big, the higher shortcoming of catalyst surface absorption probability for the common SCR method that combustion gas or oil burning boiler simple application coal-burning boiler are adopted.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of SCR Benitration reactor is provided, and the utility model can conveniently be realized denitration dust collecting, and it is simple in structure, easy to use, production cost is low, is convenient to promote the use of.

For achieving the above object, the technical solution adopted in the utility model is: a kind of SCR Benitration reactor, it is characterized in that: comprise shell, described shell inner-use clapboard is divided into passage one and passage two with shell, and the bottom of described passage one and passage two is connected, described passage one is connected with air inlet, and be disposed with the rectification layer module one of space in the described passage one from top to bottom, catalyst module one and preparing catalyst module are between described rectification layer module one and the catalyst module one and be provided with the sound wave cleaning device between a described catalyst module one and the preparing catalyst module; Described passage two is disposed with two, catalyst module two of rectification layer module and catalyst module three of space from bottom to up, described passage two is connected with the gas outlet, a described catalyst module one is a big space catalyst, a described catalyst module two and a catalyst module three are little space catalyst, and described preparing catalyst module is made up of big space catalyst.

Above-mentioned a kind of SCR Benitration reactor, the below of described passage one and passage two is provided with ash bucket.

Above-mentioned a kind of SCR Benitration reactor, the below of described ash bucket is provided with star-like unloading valve.

The utility model compared with prior art has the following advantages: the utility model can conveniently be realized denitration dust collecting, and it is simple in structure, easy to use, production cost is low, is convenient to promote the use of.Because flue gas is at first by a macroporous catalyst module one, part NOx in the flue gas reacts with reducing agent under the effect of catalyst, again through the catalyst of fine pore, can improve the contact probability of residue NOx and catalyst greatly afterwards, improve reaction efficiency.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present utility model.

Description of reference numerals:

1-rectification layer module one; Catalyst module one of 2-; The 3-gas outlet;

Catalyst module three of 4-; Catalyst module two of 5-; 6-rectification layer module two;

The star-like unloading valve of 7-; The 8-ash bucket; The 9-dividing plate;

10-preparing catalyst module; The 11-shell; 12-sound wave cleaning device;

The 13-air inlet.

The specific embodiment

A kind of SCR Benitration reactor as shown in Figure 1, comprise shell 11, described shell 11 inner-use clapboards 9 are divided into passage one and passage two with shell 11, and the bottom of described passage one and passage two is connected, described passage one is connected with air inlet 13, and be disposed with the rectification layer module 1 of space in the described passage one from top to bottom, catalyst module 1 and preparing catalyst module 10 are between described rectification layer module 1 and the catalyst module 1 and be provided with sound wave cleaning device 12 between a described catalyst module 1 and the preparing catalyst module 10; Described passage two is disposed with the rectification layer module 26 of space, a catalyst module 25 and a catalyst module 34 from bottom to up, described passage two is connected with gas outlet 3, a described catalyst module 1 is a big space catalyst, a described catalyst module 25 and a catalyst module 34 are little space catalyst, and described preparing catalyst module 10 is made up of big space catalyst.The below of described passage one and passage two is provided with ash bucket 8.The below of described ash bucket 8 is provided with star-like unloading valve 7.

Flue gas is through air inlet 13 admission passages one, after rectification layer module 1, realize even gas distribution, the air-flow running orbit of portion in the enclosure is " C " type rotary current, the part dust that can realize flue gas separates because of centrifugal motion, be deposited to ash bucket 8, and can alleviate percussion to the back catalyst module, reduced the probability of subsequent catalyst surface coverage, obstruction and poisoning; Because flue gas is at first by a macroporous catalyst module 1, part NOx in the flue gas reacts with reducing agent under the effect of catalyst, again through the catalyst of fine pore, can improve the contact probability of residue NOx and catalyst greatly afterwards, improve reaction efficiency.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.

Claims

1. SCR Benitration reactor, it is characterized in that: comprise shell (11), described shell (11) inner-use clapboard (9) is divided into passage one and passage two with shell (11), and the bottom of described passage one and passage two is connected, described passage one is connected with air inlet (13), and be disposed with the rectification layer module one (1) of space in the described passage one from top to bottom, catalyst module one (2) and preparing catalyst module (10) are provided with sound wave cleaning device (12) between one (1) and catalyst module one (2) of described rectification layer module and between a described catalyst module one (2) and the preparing catalyst module (10); Described passage two is disposed with two (5) and catalyst modules three (4) of two (6), catalyst modules of rectification layer module of space from bottom to up, described passage two is connected with gas outlet (3), a described catalyst module one (2) is a big space catalyst, two (5) and catalyst modules three (4) of a described catalyst module are little space catalyst, and described preparing catalyst module (10) is made up of big space catalyst.

2. a kind of SCR Benitration reactor according to claim 1 is characterized in that: the below of described passage one and passage two is provided with ash bucket (8).

3. a kind of SCR Benitration reactor according to claim 2 is characterized in that: the below of described ash bucket (8) is provided with star-like unloading valve (7).