CN209416084U - Chemical catalyst calcining and decomposition gas burn all-in-one oven - Google Patents

Chemical catalyst calcining and decomposition gas burn all-in-one oven Download PDF

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Publication number
CN209416084U
CN209416084U CN201920014584.6U CN201920014584U CN209416084U CN 209416084 U CN209416084 U CN 209416084U CN 201920014584 U CN201920014584 U CN 201920014584U CN 209416084 U CN209416084 U CN 209416084U
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China
Prior art keywords
section
gas
row
calcining
decomposition gas
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Withdrawn - After Issue
Application number
CN201920014584.6U
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Chinese (zh)
Inventor
余瑞龙
余美华
陈良安
韩金
余细龙
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Huanggang Zhongzhou Anxin Kiln Co Ltd
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Huanggang Zhongzhou Anxin Kiln Co Ltd
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Priority to CN201920014584.6U priority Critical patent/CN209416084U/en
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Publication of CN209416084U publication Critical patent/CN209416084U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a kind of calcining of chemical catalyst and decompose gas burning all-in-one oven, it solves the prior art and there is the problems such as taking up a large area, equipment investment is high, it is characterized by: decomposing the row of being provided at the top of section (2) in heating decomposes feed channel (7) and row decomposition gas blower (6), decomposition gas Burning Room (16) are additionally arranged below the device for transporting objects of calcining at constant temperature activation section (3), it is provided on Burning Room (16) and decomposes gas branch pipe, feed channel (8) are decomposed by conveying and are connected with row's decomposition gas blower (6) outlet mouth of pipe;Burning Room discharge flue (11) are provided with below the material transmitting device that preheating section (1) and heating decompose section (2), and are provided with smoke discharging pipe (10) in preheating section (1), which is connected with the smoke exhaust fan (9) for being mounted on furnace roof.Have many advantages, such as structurally reasonable, easy to operate, energy-saving and emission-reduction, there is good Social benefit and economic benefit.

Description

Chemical catalyst calcining and decomposition gas burn all-in-one oven
Technical field:
The utility model belongs to Thermal Equipment, and gas is calcined and decomposed particularly with regard to a kind of chemical catalyst and burns one Body furnace.
Background technique:
The mature equipment that the chemical catalyst calcining furnace of domestic manufacturer's production at present uses has: tunnel oven, shuttle kiln, roller-way Kiln, mesh-belt kiln etc..Need to add a large amount of organic lipids or various salt in chemical catalyst forming process, it is dry in catalyst Discharge must be decomposed during calcining and activating, these tail gas are again extremely serious to the pollution of environment, in general factory at this stage Family requires to spend high cost installation tail gas treatment device.Decomposing gas disposal generally uses spray-absorption, burning disposal, desulfurization de- Nitre tower processing etc..I.e. catalyst calcination when, be divided into calciner and tail gas treatment device match, that there are equipment investments is big, The problems such as occupied area is more, energy consumption is high, environmental pollution weight.
Summary of the invention:
The purpose of this utility model is to provide a kind of structurally reasonable, production simply, saves the energy, reduces investment, saving Land used protects the chemical catalyst calcining of environment and decomposition gas to burn all-in-one oven.
The technical solution of the utility model is: it includes decomposing section, calcining at constant temperature activation section, cooling by preheating section, heating The furnace body and device for transporting objects and be made of burner, gas pipeline, combustion-supporting air piping and combustion fan that cooling section is constituted The composition such as burner decomposes the row of being provided at the top of section in heating and decomposes feed channel and row's decomposition gas blower, arranges decomposition gas blower Air inlet mouth of pipe by row decompose feed channel with heating decomposition section burner hearth communicate.In the device for transporting objects of calcining at constant temperature activation section Lower section is additionally arranged decomposition gas Burning Room, is provided on Burning Room and decomposes gas branch pipe, decomposes feed channel and row's decomposition gas by conveying Blower outlet mouth of pipe is connected.The indoor residence time is being burned in order to improve incineration flue gas, ceramic honey comb is equipped in Burning Room The flue gas residence wall of heat storage production.Burning Room is provided with below the material transmitting device that preheating section and heating decompose section to discharge fume Channel, and it is provided with smoke discharging pipe in preheating section, which is connected with the smoke exhaust fan for being mounted on furnace roof.
The utility model has the beneficial effects that: due to being additionally arranged decomposition gas Burning Room in furnace body calcining at constant temperature activation section, Calcining and decomposing gas is directly carried out to burning disposal meet the requirement of environmental protection, UTILIZATION OF VESIDUAL HEAT IN outlet again in calcining furnace, greatlys save and accounts for Ground, energy consumption and equipment investment.With structurally reasonable, production is simple, the saving energy, reduces and invests, saves the area, protects environment etc. Advantage, incineration flue gas utilization rate are up to 80~90%, compared with the energy that traditional handicraft and equipment have saved 35% or so, have good Social benefit and economic benefit, market prospects are very wide.
The utility model is described in further detail with reference to the accompanying drawing.
Detailed description of the invention:
Fig. 1 is the utility model principle schematic diagram;
Fig. 2 is the utility model schematic view of the front view.
In figure: 1 is preheating section, and 2 decompose section for heating, and 3 be calcining at constant temperature activation section, and 4 be cooling down section, and 5 be material Conveying device, 6 be row's decomposition gas blower, and 7 decompose feed channel for row, and 8 decompose feed channel for conveying, and 9 be smoke exhaust fan, and 10 be row Smoke pipeline, 11 be Burning Room discharge flue, and 12 be gas pipeline, and 13 be combustion-supporting air piping, and 14 be combustion fan, and 15 be burner, 16 be Burning Room.
Specific embodiment:
As shown in Figure 1, chemical catalyst calcining and decompose gas burn all-in-one oven be by preheating section 1, heating decompose section 2, Calcining at constant temperature activation section 3, cooling down section 4 constitute furnace body and device for transporting objects 5 and by burner 15, gas pipeline 12, The compositions such as the burner that combustion-supporting air piping 13 and combustion fan 14 are constituted decompose the row's of being provided with decomposition gas at the top of section 2 in heating The air inlet mouth of pipe of pipeline 7 and row's decomposition gas blower 6, row's decomposition gas blower 6 decomposes feed channel 7 by row and 2 furnace of section is decomposed in heating Thorax communicates.It is additionally arranged decomposition gas Burning Room 16 below the device for transporting objects of calcining at constant temperature activation section 3, is arranged on Burning Room 16 Decomposition gas branch pipe decomposes feed channel 8 by conveying and is connected with decomposition gas blower 6 outlet mouth of pipe is arranged.In preheating section 1 and heating point It solves and is provided with Burning Room discharge flue 11 below the material transmitting device of section 2, and be provided with smoke discharging pipe 10 in preheating section 1, it should Smoke discharging pipe 10 is connected with the smoke exhaust fan 9 for being mounted on furnace roof.
When implementing the utility model, by taking 62m muffle mesh-belt kiln as an example: expanding in the calcining at constant temperature activation section 3 of mesh-belt kiln and increase If Burning Room 16, it will heat up to decompose by air-introduced machine 6 and be burned in section decomposition gas feeding Burning Room 16, general organic matter incineration temperature At 500~600 DEG C, salt or other oxides need 800~900 DEG C of burnings, and chemical catalyst calcination temperature generally exists 500~700 DEG C.Therefore it is distinguished in the design process according to different product different decomposition object, when incineration temperature is higher than calcining temperature The thickness and material of flame isolation layer are considered when spending;When burning required temperature and being lower than calcination temperature, directly improving incineration temperature makes point Burning of venting one's spleen is faster more abundant.Flue gas after burning can be discharged out of the furnace by bottom flue gas passage in burner preheating section, flue gas To material bed carry out radiant heating in bottom flue gas passage 11.
Its process is:
(1) calcining and activating furnace is heated up to decompose product in section 2 and heat up 200~250 DEG C of decomposed tail gas and contain organic compounds pumping It is sent out to burning in Burning Room 16;
(2) decomposition gas organic exhaust gas burns the heat supply calcining at constant temperature activation section 3 generated and uses, and calcining required temperature is 600 DEG C or so;Improve incineration temperature when heat is inadequate, when heat superelevation adds muffle heat preservation, makes to calcine section moderate temperature;
(3) honeycomb ceramic heat accumulator is added in Burning Room 16, is burning the indoor residence time to improve incineration flue gas, It is burned to achieve the effect that improve decomposition gas;
(4) 200 DEG C or so low-temperature flue gas are discharged out of the furnace from low-temperature prewarming section 1 by smoke exhaust fan 9.
Catalyst decomposition product Correlative data analysis is provided by owner, decomposition product warp >=850 DEG C can reach after high temperature incineration National environmental standard, design catalyst decompose feeding burner hearth after gas is extracted out by blower and make burning disposal.It is decomposed in view of burning The temperature of gas is higher than production temperature, special to have been moved off material furnace zone with the kiln and make exhaust gas incineration area, i.e. kiln 49m It is set as decomposing gas incineration section to 53m, because material calcining area (traditional kiln is cooling section herein) has been left in this region, Influence of the temperature to material can accomplish the firing and cooling that do not influence material by scientific selection and reasonable masonry construction.
The decomposition gas burn down mode is better than free-standing flue gas incineration furnace, because of the decomposition gas incineration section and production burner hearth It is not only to have connected together but also relatively independent organism, the high-temperature gas generated when burning and decomposing gas is to walk roaster hearth warp Smoke exhaust fan discharge, therefore its utilization rate of waste heat is greatly improved (utilization rate up to 85%~95%), and free-standing flue gas burns The waste heat of furnace is often directly emptied, and heat utilization efficiency and environment protecting are also unsatisfactory.
The kiln 49m to 53m is used as by the decomposition gas incineration section decomposes gas incineration area, will with two high-power burners The temperature of area jian be raised to >=850 DEG C for burn decompose gas, for make decompose gas be heated more evenly in the area, jian uses bee Nest ceramics have made 7 flue gas residence walls, and decomposition gas is made to be appropriately extended by the time of high temperature incineration and burn more equal It is even.
Incineration temperature due to decomposing gas is higher than production temperature and is herein cooling section by original design, in order to The cooling of material is not influenced, the design selects the covering thermal insulation layer of quality refractory thermal insulation board work decomposition gas incineration section in this section, And cooling air hose is added in kiln tail, make material reaches original design temperature from kiln temperature degree.
2000~8000m3/h of waste gas decomposition is generated when calcined catalyst on an hourly basis as reference, because of the larger warp of its air quantity Be afraid of effectively be digested by burner hearth and influence firing temperature when crossing burner hearth, therefore be provided with what past burner hearth leaked out at kiln 49m Control valve, and the resisting blower of the extra air quantity of extraction, when production, are comprehensively utilized the two to balance furnace pressure, are made Temperature in burner hearth is controllably run (note: resisting blower herein is opened and do not opened and determined by furnace pressure) by production curve.
In order to show the pressure working condition for decomposing gas incineration section in real time, a U-shaped pressure is installed at the 49m of kiln Count the pressure working condition to show this section.

Claims (2)

1. a kind of calcining of chemical catalyst and decompose gas and burn all-in-one oven, it include decomposed by preheating section (1), heating section (2), The furnace body and device for transporting objects (5) and by burner (15), combustion gas that calcining at constant temperature activation section (3), cooling down section (4) are constituted The burner composition that pipeline (12), combustion-supporting air piping (13) and combustion fan (14) are constituted, it is characterised in that: decomposed in heating The row of being provided with decomposes feed channel (7) and row decomposition gas blower (6) at the top of section (2), and the air inlet mouth of pipe of row decomposition gas blower (6) passes through Row decomposes feed channel (7) and communicates with heating decomposition section (2) burner hearth, below the device for transporting objects of calcining at constant temperature activation section (3) It is additionally arranged decomposition gas Burning Room (16), is provided on Burning Room (16) and decomposes gas branch pipe, feed channel (8) and row are decomposed by conveying Decomposition gas blower (6) outlet mouth of pipe is connected;It is provided with below the material transmitting device that preheating section (1) and heating decompose section (2) Burning Room discharge flue (11), and smoke discharging pipe (10) are provided in preheating section (1), the smoke discharging pipe (10) and it is mounted on furnace roof Smoke exhaust fan (9) be connected.
2. chemical catalyst calcining according to claim 1 and decomposition gas burn all-in-one oven, it is characterised in that: burning Flue gas residence wall equipped with honeycomb ceramic heat accumulator production in room (16).
CN201920014584.6U 2019-01-05 2019-01-05 Chemical catalyst calcining and decomposition gas burn all-in-one oven Withdrawn - After Issue CN209416084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920014584.6U CN209416084U (en) 2019-01-05 2019-01-05 Chemical catalyst calcining and decomposition gas burn all-in-one oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920014584.6U CN209416084U (en) 2019-01-05 2019-01-05 Chemical catalyst calcining and decomposition gas burn all-in-one oven

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109579554A (en) * 2019-01-05 2019-04-05 黄冈市中洲安信窑炉有限公司 Chemical catalyst calcining and decomposition gas burn all-in-one oven

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109579554A (en) * 2019-01-05 2019-04-05 黄冈市中洲安信窑炉有限公司 Chemical catalyst calcining and decomposition gas burn all-in-one oven
CN109579554B (en) * 2019-01-05 2023-11-07 黄冈市中洲安信窑炉有限公司 Integrated furnace for calcining chemical catalyst and decomposing gas for burning

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