CN207169659U - A kind of Novel SCR Benitration reactor - Google Patents

Abstract

The utility model discloses a kind of Novel SCR Benitration reactor, including reactor body, the reactor body interior parallel is provided with multilayer card, multiple catalyst cages are uniformly provided with every layer of card, the catalyst cage upper end is buckled on card, its lower end is located at below card, the catalyst cage is column, graininess denitrating catalyst is filled between its inwall and outer wall, its inwall and outer wall are steel wire network structure, its bottom is air-locked slab construction, manhole door is equipped with reactor body side wall below every layer of card, the utility model is simple in construction, it is novel, reduce plant investment, the problem of reducing operating cost etc., improve resource utilization.

Description

A kind of Novel SCR Benitration reactor

Technical field

Filed of flue gas purification is the utility model is related to, specifically a kind of Novel SCR Benitration reactor.

Background technology

China is that the production process such as coal-fired big country, fire coal, coking, glass can all produce a certain amount of dust, SO₂, nitrogen oxygen Compound (NO_X) and harmful metal elements etc., NO in flue gas_XDischarge compare SO₂Harm to environment is even more serious, a large amount of nitrogen oxidations Thing (NO_X) discharge can cause a series of environmental problem such as acid rain, photochemical fog, depletion of the ozone layer and greenhouse effects, especially Serious " haze " phenomenon occurred for the most of place in the whole nation in recent years, it has its source in nitrogen oxides (NO_X) discharge, control NO_x in Air Environment (NO_X) discharge cause the concern in the whole world, while be also the weight protected in the current atmospheric environment in China Point and difficult point, therefore, NO_XProcessing it is particularly important.

At present on domestic market to NO_XProcessing based on SCR denitration technology, and the catalysis that SCR denitration uses at present Agent is leading, also board-like in addition, corrugated catalyst agent using honeycomb ceramics, but its reactor generally existing structure is big, and investment is high, accounts for The problems such as ground area is big；In addition, in the design, reactor design also needs to carry out flow field simulation, ensures the uniform property of flue gas, , it is necessary to supporting sonic soot blowing and supporting compressed air system and catalyst lifting facility in process system.We propose with regard to this A kind of Novel SCR Benitration reactor, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of Novel SCR Benitration reactor, changes equipment in existing smoke gas treatment The problems such as size, floor space, flue gas even distribution, auxiliary facility, so as to reduce plant investment, reduce asking for operating cost etc. Topic, improve resource utilization.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：

A kind of Novel SCR Benitration reactor, including reactor body, the reactor body interior parallel are provided with multi-layer flower Plate, multiple catalyst cages are uniformly provided with every layer of card, the catalyst cage upper end is buckled on card, and its lower end is positioned at flower Below plate, the catalyst cage be column, be filled with graininess denitrating catalyst between its inwall and outer wall, its inwall and outside Wall is steel wire network structure, and its bottom is air-locked slab construction, the reactor body side wall below every layer of card On be equipped with manhole door.

Further, the reactor body is cylindric or rectangular cylindrical.

Further, the reactor body lower end is provided with gas approach, and upper end is provided with exhanst gas outlet.

Further, connected between card and catalyst the cage upper end using sealed air-tight structure.

The beneficial effects of the utility model are：

1st, using pellet type catalyst, it has the characteristics such as mechanical strength height, service life length.And specific surface area is big, instead Answer motive force big, while denitration efficiency is ensured, catalyst amount can be reduced again；

2nd, the structure of reactor significantly reduces, without a large amount of steel constructions of traditional SCR reactors, Novel SCR reactor Material usage be about traditional SCR reactors half, or smaller, corresponding cost of investment and installation area are significantly Degree reduces；

3rd, using new catalyst modular assembly, after loading catalyst, the channel cross-section of beds is very big, flue gas It is very slow by the flow velocity of beds, residence time increase, improve denitration reaction efficiency；

5th, due to granule catalyst bed layer resistance with respect to honeycomb ceramics it is larger, therefore flue gas by beds when, Due to resistance factor, flue gas by automatic uniform by reactor bed, phenomena such as bias current will not be produced.So relative to tradition SCR denitration reactor need not do flow field simulation, it is not necessary to increase flue gas even distribution device, while denitration efficiency is ensured, subtract Few investment and occupation area of equipment；

6th, the relatively conventional SCR catalyst module of catalyst cage, its geomery is small, in light weight, supporting without reactor Various catalyst lifting facilities, direct labor's installation.Set-up time relatively conventional catalyst module reduces half, and letter Change device, reduce investment；

7th, change and used honeycombed catalyst in the past, using pellet type catalyst, flow of flue gas pattern is from being axially changed into footpath To.Flue gas carries out pellet type catalyst bed with the flow pattern of radial direction, its turbulent extent flowed and the collision with catalyst Degree can so reduce denitrating catalyst usage amount relative to axially flowing can all be significantly increased in honeycomb catalyst bed layer And extend catalyst service life；

8th, relatively conventional SCR denitration device, Novel SCR Benitration reactor need not increase sonic soot blowing device and its with casing pressures Contracting air system.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the utility model structure diagram.

Fig. 2 is that single catalyst bag cage is arranged on structural representation on card.

Fig. 3 is that catalyst bag cage is arranged on structure top view on card.

In figure：1st, reactor body, 2, card, 3, catalyst cage, 31, inwall, 32, outer wall, 4, denitrating catalyst, 5, Manhole door, 6, gas approach, 7, exhanst gas outlet.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

As shown in Figures 1 to 3, the utility model provides a kind of Novel SCR Benitration reactor, including reactor body 1, described The interior parallel of reactor body 1 is provided with multilayer card 2, and multiple catalyst cages 3, the catalysis are uniformly provided with every layer of card 2 The upper end of agent cage 3 is buckled on card 2, and its lower end is located at the lower section of card 2, and the catalyst cage 3 be column, its inwall 31 with outside Graininess denitrating catalyst 4 is filled between wall 32, its inwall 31 is steel wire network structure with outer wall 32, and its bottom is impermeable The slab construction of gas, manhole door 5 is equipped with the side wall of reactor body 1 of the lower section of every layer of card 2, by manhole door 5, just Denitrating catalyst 4 is changed in the artificial later stage or carries out internal maintenance.

The reactor body 1 is cylindric or rectangular cylindrical.

The lower end of reactor body 1 is provided with gas approach 6, and upper end is provided with exhanst gas outlet 7.

Connected between card 2 and catalyst cage 3 upper end using sealed air-tight structure.

Above-described the utility model embodiment, the restriction to scope of protection of the utility model is not formed, it is any Made within spirit of the present utility model and principle modifications, equivalent substitutions and improvements etc., should be included in the utility model Claims within.

Claims (4)

1. A kind of 1. Novel SCR Benitration reactor, it is characterised in that including reactor body, the reactor body interior parallel Provided with multilayer card, multiple catalyst cages are uniformly provided with every layer of card, the catalyst cage upper end is buckled on card, its Lower end is located at below card, and the catalyst cage is column, and graininess denitrating catalyst is filled between its inwall and outer wall, Its inwall and outer wall are steel wire network structure, and its bottom is air-locked slab construction, the reaction below every layer of card Manhole door is equipped with this body sidewall of device.
2. 2. Novel SCR Benitration reactor according to claim 1, it is characterised in that the reactor body is cylindric Or rectangular cylindrical.
3. 3. Novel SCR Benitration reactor according to claim 1 or 2, it is characterised in that the reactor body lower end is set There is gas approach, upper end is provided with exhanst gas outlet.
4. 4. Novel SCR Benitration reactor according to claim 1, it is characterised in that on the card and catalyst cage Connected between end using sealed air-tight structure.