CN102039206A - Catalyst calcining box - Google Patents
Catalyst calcining box Download PDFInfo
- Publication number
- CN102039206A CN102039206A CN 201010596959 CN201010596959A CN102039206A CN 102039206 A CN102039206 A CN 102039206A CN 201010596959 CN201010596959 CN 201010596959 CN 201010596959 A CN201010596959 A CN 201010596959A CN 102039206 A CN102039206 A CN 102039206A
- Authority
- CN
- China
- Prior art keywords
- pore
- box
- calcining
- catalyst
- cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a catalyst calcining box comprising a box body and a box cover, wherein pores are evenly distributed on the box cover, each pore is provided with a pore cap, and the pore cap is matched with the pore to close the pore; under the action of airflow, the pore cap can be opened to uniaxially discharge gas in the box; the pore cap has a T-shaped cross section; and the pore cap closes the pore by self weight. The closed calcining box not only can evenly heat catalyst but also can alleviate and lower thermal shock; and the pore cap not only can prevent the undesired external gas atmosphere from entering the calcining box, but also can automatically discharge excessive gas in the box so as to control exothermal reaction. On the premise of ensuring sufficient catalyst activity, the calcination percent of pass can be greatly improved, and the calcination percent of pass is above 99% in producing honeycomb SCR (Selective Catalytic Reduction) smoke denitration catalyst.
Description
Technical field
The invention belongs to the field that manufactures and designs that produces catalyst equipment, relate in particular to manufacturing and designing of a kind of catalyst calcination box, especially for producing manufacturing and designing of calcining box that honeycomb fashion SCR catalyst for denitrating flue gas uses.
Background technology
The calcination process of honeycomb fashion SCR (SCR) catalyst for denitrating flue gas monomer is the committed step of whole Catalyst Production process.On the one hand, some organic additives etc. can decompose gradually along with temperature raises in calcination process; On the other hand, strong exothermic reaction can take place in this decomposable process, because the surface area of honeycomb ceramics is very big, the exothermic reaction meeting strengthens the inside and outside temperature difference of honeycomb ceramics, causes the irregular cracking even the fragmentation of honeycomb ceramics.
So, guaranteeing that catalyst has under the enough highly active prerequisite, the calcining technology that suppresses exothermic reaction speed and the generation of minimizing crackle is the key that honeycomb fashion SCR catalyst for denitrating flue gas is produced always.Existing calcination process: adopt naked firing technique, often can face the problem that heat energy fluctuation impact and air-flow cause temperature distributing disproportionation; Existing box body calcining also is simple heat insulation firing, the problem that exists the inequality of being heated, the inside and outside atmosphere of box body to adjust and to control; Even the calcination process that has adopted the calcining manners of inert gas shielding, increased great amount of cost, and the device structure complexity.
Be not only in honeycomb fashion SCR catalyst for denitrating flue gas is produced, usually in other Catalyst Production process, the similar problem of catalyst calcination also has generation.
Summary of the invention
The present invention discloses a kind of catalyst calcination box according to the deficiencies in the prior art, the problem to be solved in the present invention provide a kind of can make catalyst in calcination process, be heated evenly, slow down and the opposing thermal shock, build different calcined gas atmosphere, effectively control exothermic reaction, discharge the catalyst calcination box of decomposition gas automatically.
The present invention is achieved through the following technical solutions:
A kind of catalyst calcination box comprises box body and lid, and wherein: evenly-distributed air holes is arranged on lid, and each pore has the pore cap, and the pore cap cooperates with pore closes pore, and the pore cap can be opened under the air-flow effect in box, makes gas unidirectional discharge in the box.
Further described pore cap cross section is a T type shape, relies on own wt to close pore.
Further the diameter of described pore is 10～30mm.Evenly-distributed air holes has 2～100 on the described lid.
In above-mentioned calcining box box body bottom bracing frame is arranged, can support the calcining box body on the one hand, and support the multilayer calcining box that is layered on the calcining box; On the other hand, can between the calcining box, form a lamellar spacing, be convenient to air-flow and between the calcining box, flow, reach the purpose of even heating and calcining box.
On above-mentioned calcining lid, the screens frame is arranged, can supplemental support calcine box box body weight on the one hand; On the other hand, by and the bracing frame of calcining box bottom between the position staggered, fixing calcining box position.
Described calcining box, comprise calcining box box body and lid, calcining box box body and lid have formed sealed space, guaranteed that the internal accelerator monomer can directly not touch thermal current, by indirect calcining box, with thermal-radiating form heatable catalyst, reached the purpose of even heatable catalyst and buffering thermal shock.
Be arranged on the one-way vent of calcining box cover, be used for discharging the excess air that the inner organic matter decomposes of calcination process catalyst is produced, the diameter dimension of steam vent is controlled at 10～30mm, the quantity of steam vent is controlled at 2～100, and steam vent pore cap can be by calcining box internal gas pressure size automatic shutter.
Be arranged on the pore cap on the one-way vent, its effect is a weight of utilizing pore cap self, seals up steam vent blocking-up calcining box extraneous gas and enters in the calcining box; On the other hand, the tolerance when calcining box inside increases, and when excess air caused calcining the rising of box internal pressure and surpasses the weight of pore cap self, the pore cap will be pushed the pore cap open, discharges excessive gas automatically; Except needs cooperate the steam vent size, multiple design is arranged in the profile and the weight of pore cap.
The helpfulness of catalyst calcination box of the present invention: catalyst of the present invention adopts the calcining box of sealing can reach even heatable catalyst with the calcining box, can slow down and reduce thermal shock again; The pore cap can prevent that extraneous undesirable gas atmosphere from entering calcining box inside, can automatically excess air in the box be discharged again, thereby can control the generation of exothermic reaction, is guaranteeing to have improved the calcining qualification rate greatly under enough catalyst activity prerequisites.Catalyst calcination box of the present invention in producing honeycomb fashion SCR catalyst for denitrating flue gas can solve honeycomb fashion SCR catalyst for denitrating flue gas heating temperature in calcination process problem that is evenly distributed, again can buffer gas flow thermal shock problem; Can either discharge excessive gas automatically, can stop that again outside atmosphere too much enters in the calcining box, in the calcining box, build a relative anaerobism calcination environment, slow down organic exothermic reaction, under the prerequisite that guarantees catalyst activity, the catalyst calcination appearance yield can reach more than 99%.
Description of drawings
The present invention is further described below in conjunction with the specific embodiment and description of drawings.
Fig. 1 is that the present invention calcines the lid schematic top plan view;
Fig. 2 is that the present invention calcines the box side schematic view;
Fig. 3 is pore cap cross section structure one schematic diagram of the present invention;
Fig. 4 is pore cap cross section structure two schematic diagrames of the present invention;
Fig. 5 is pore cap cross section structure three schematic diagrames of the present invention;
Among the figure, the 1st, lid, the 2nd, box body, the 3rd, pore, the 4th, pore cap, the 4.1st, pore cap one, 4.2nd, pore cap two, 4.3rd, pore cap three, 5th, screens frame, the 6th, bracing frame.
The specific embodiment
The present invention is further described below in conjunction with embodiment.Embodiment is used to illustrate the present invention, does not limit the present invention in any way.
In conjunction with Fig. 1 to Fig. 5.
The invention discloses a kind of calcining box that catalyst is used of producing, comprise calcining box box body 2 and lid 1, calcining box box body 2 and lid 1 have formed sealed space, guaranteed that the internal accelerator monomer touches thermal current between not understanding, by indirect calcining box, with thermal-radiating form heatable catalyst, reached the purpose of even heatable catalyst and buffering thermal shock.
The present invention includes the one-way vent 3 that is arranged on calcining box cover 1, be used for discharging the excess air that the inner organic matter decomposes of calcination process catalyst is produced, the diameter dimension of steam vent 3 is controlled at 10～30mm, the quantity of steam vent is controlled at 2～100, and steam vent pore cap 4 must be by calcining box internal gas pressure size automatic shutter.
The present invention includes the pore cap 4 that is arranged on the one-way vent 3, its effect is a weight of utilizing pore cap 4 self, seals up steam vent 3 blocking-up calcining box extraneous gas and enters in the calcining box; On the other hand, the tolerance when calcining box inside increases, and excess air causes calcining that the box internal pressure raises and when surpassing the weight of pore cap 4 self, pore cap 4 will be pushed the pore cap open, discharges excessive gas automatically; Except needs cooperate steam vent 3 sizes, aspect the profile and weight of pore cap 4, multiple design is arranged, as Fig. 3 to 5.
The present invention includes the bracing frame 6 that is arranged on calcining box bottom, can support the calcining box body on the one hand, and support the multilayer calcining box that is layered on the calcining box; On the other hand, can between the calcining box, form a lamellar spacing, be convenient to air-flow and between the calcining box, flow, reach the purpose of even heating and calcining box.
The present invention includes the screens frame 5 that is arranged on the calcining lid, can supplemental support calcine box box body weight on the one hand; On the other hand, by and the bracing frame of calcining box bottom between the position staggered, fixing calcining box position.
As shown in Figure 1, the calcining box cover 12 steam vents of even layout, the diameter of steam vent is 20mm; Whole 12 steam vents all cover the pore cap, and the pore cap adopts 4.1 profiles shown in Figure 3; Evenly occupy the dry monomer of 18 * 18 hole honeycomb fashion SCR denitrating catalysts in the calcining box, calcine by existing calcination procedure.
The calcining box cover 4 steam vents of even layout, steam vent all covers the pore cap, other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Embodiment 3
The pore cap adopts 4.2 profiles shown in Figure 4, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
The pore cap adopts 4.3 profiles shown in Figure 5, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Arrange even 2 steam vents on the calcining lid, the diameter of steam vent is 30mm; Other conditions are the same with embodiment 1, calcine by existing calcination procedure.
The calcining box cover 100 steam vents of even layout, the diameter of steam vent is 10mm; Whole 100 steam vents all cover the pore cap, and the pore cap adopts 4.2 profiles shown in Figure 4; Evenly occupy the dry monomer of 40 * 40 hole honeycomb fashion SCR denitrating catalysts in the calcining box, calcine by existing calcination procedure.
Embodiment 7
The calcining box cover 20 steam vents of even layout, the diameter of steam vent is 30mm; The pore cap adopts 4.1 profiles shown in Figure 3; Other conditions are the same with embodiment 6, calcine by existing calcination procedure.
Embodiment 8
The calcining box cover 10 steam vents of even layout, the diameter of steam vent is 15mm; The pore cap adopts 4.3 profiles shown in Figure 5; Evenly occupy the dry monomer of 15 * 15 hole honeycomb fashion SCR denitrating catalysts in the calcining box; Other conditions are the same with embodiment 6, calcine by existing calcination procedure.
Embodiment 9
The calcining box cover 25 steam vents of even layout, the diameter of steam vent is 25mm; The pore cap adopts 4.1 profiles shown in Figure 3; Evenly occupy the dry monomer of 25 * 25 hole honeycomb fashion SCR denitrating catalysts in the calcining box, other conditions are the same with embodiment 6, calcine by existing calcination procedure.
Embodiment 10
The calcining box cover 25 steam vents of even layout, the diameter of steam vent is 25mm; Evenly occupy the dry monomer of 35 * 55 hole honeycomb fashion SCR denitrating catalysts in the calcining box, other conditions are the same with embodiment 6, calcine by existing calcination procedure.
Comparative example 1 (lower limit that the steam vent opening diameter on the calcining lid is lower than regulation requires)
Steam vent opening diameter on the calcining lid is adjusted into 8mm, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Comparative example 2 (the steam vent opening diameter on the calcining lid surpasses set upper limit and requires)
Steam vent opening diameter on the calcining lid is adjusted into 35mm, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Comparative example 3 (lower limit that the steam vent perforate quantity on the calcining lid is lower than regulation requires)
Steam vent perforate quantity on the calcining lid is adjusted into 1, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Comparative example 4 (the steam vent number of aperture on the calcining lid surpasses in the set upper limit requirement)
Steam vent perforate quantity on the calcining lid is adjusted into 102, and other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Comparative example 5 (though the steam vent number of aperture of calcining on the lid in prescribed limit, the pore cap all can not automatic shutter)
On the calcining lid, evenly arrange 30 steam vents, the whole sealing and fixing of pore cap, other conditions are the same with embodiment 1, calcine by existing calcination procedure.
Comparative example 6 (though the steam vent number of aperture of calcining on the lid in prescribed limit, the pore cap all opens wide)
Evenly arrange 16 steam vents on the calcining lid, but all steam vents are all unlimited, do not cover the pore cap, other conditions are the same with embodiment 1, calcine by existing calcination procedure.
To calcine the catalyst monomer of coming out of the stove according to embodiment 1～10 and comparative example 1～8, at first check every stove calcining monomer show defect situation (crackle, breakage etc.), statistics qualification rate (%) by standard.Then, in every stove calcining monomer, get 1 qualified monomer of presentation quality and pack in Bench (medium-sized) reactor, under VGB-R 302He (denitrating catalyst examination guide) contrast test specified standard experimental condition, carry out catalyst activity property testing (representing) with denitration efficiency.
Experimental result
Above-mentioned various calcining test catalyst denitration efficiencies and monomer show acceptance sampling system test be the results are shown in following table 1:
Table 1: various calcining test catalyst denitration efficiencies and monomer show acceptance sampling system test result
Catalyst as shown in table 1, as to utilize the embodiment of the invention 1～10 to produce is guaranteeing under the sufficiently high prerequisite of catalyst activity that the calcining monomer show seldom or does not almost have defective, and qualification rate is all more than 99%.Be adjusted in 8mm, 35mm comparative example 1, the comparative example 2 at the steam vent opening diameter that will calcine on the lid, and steam vent quantity is lower than 2, surpasses in 100 the comparative example 3, comparative example 4, even all because of capacity in the less than normal or calcining box excess air can not back down the pore cap and make exhaust untimely, cause excessive reproducibility waste gas time of staying in the calcining box to prolong, exothermic reaction speeds up, the result makes that the calcining monomer reactivity is lower, defect level is bigger.In comparative example 5, though the steam vent on the calcining lid within the limits prescribed, but the pore cap all seals, can not freely openable, a large amount of reproducibility waste gas all are trapped in the calcining box, and, make exothermic reaction out of control with the temperature organic decomposition in the aggravation catalyst that raises, cause finally that catalyst activity is extremely low, monomer produces the large tracts of land defective even hardening crack.In comparative example 6, though the steam vent on the calcining lid within the limits prescribed, but the pore cap all opens wide, produce the gas exhaust excessive velocities in the calcining box, directly contact simultaneously with oxygen-enriched atmosphere in the calcining furnace, exothermic reaction is accelerated in the same catalyst, though the result can guarantee activity of such catalysts, the monomer show defect level is bigger.Can confirm according to above-mentioned test, utilize method of the present invention guaranteeing under the enough highly active prerequisite of catalyst, improve the calcining qualification rate greatly.And can confirm, the one-way vent opening diameter is advisable in 2-100 scope in 10-30mm, perforate quantity on the calcining lid, the pore cap of individual event steam vent must be according to the big or small automatic shutter of gas pressure in the calcining box, so that in time gas excessive in the box is discharged the calcining box.
Claims (6)
1. catalyst calcination box, comprise box body (2) and lid (1), it is characterized in that: evenly-distributed air holes (3) is arranged on lid (1), each pore (3) has pore cap (4), pore cap (4) cooperates with pore (3) closes pore (3), pore cap (4) can be opened under the air-flow effect in box, makes gas unidirectional discharge in the box.
2. catalyst calcination box according to claim 1 is characterized in that: described pore cap (4) cross section is a T type shape, relies on own wt to close pore (3).
3. catalyst calcination box according to claim 1 and 2 is characterized in that: the diameter of described pore (3) is 10～30mm.
4. catalyst calcination box according to claim 1 and 2 is characterized in that: described lid (1) is gone up evenly-distributed air holes (3) 2～100.
5. catalyst calcination box according to claim 1 and 2 is characterized in that: screens frame (5) is arranged on the described lid (1).
6. catalyst calcination box according to claim 1 and 2 is characterized in that: bracing frame (6) is arranged at described box body (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596959 CN102039206B (en) | 2010-12-20 | 2010-12-20 | Catalyst calcining box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596959 CN102039206B (en) | 2010-12-20 | 2010-12-20 | Catalyst calcining box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039206A true CN102039206A (en) | 2011-05-04 |
| CN102039206B CN102039206B (en) | 2013-01-30 |
Family
ID=43905938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010596959 Active CN102039206B (en) | 2010-12-20 | 2010-12-20 | Catalyst calcining box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039206B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538181A (en) * | 2014-12-29 | 2015-04-22 | 中国振华（集团）新云电子元器件有限责任公司 | Compacting method for manganese dioxide layer forming of tantalum capacitor |
| CN105170194A (en) * | 2015-09-17 | 2015-12-23 | 山东奥福环保科技股份有限公司 | Catalyst carrier protective jacket and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410509A (en) * | 2001-09-27 | 2003-04-16 | 中国石油化工股份有限公司 | Oil slurry charring firing device and its method |
| CN2773047Y (en) * | 2005-01-31 | 2006-04-19 | 中国科学院理化技术研究所 | Cased electrothermal furnace with micro-nanometer carbon material production by chemical gas-phase depositon |
| CN2862011Y (en) * | 2006-01-23 | 2007-01-24 | 张志有 | Slaking furnace |
| CN101444755A (en) * | 2008-12-24 | 2009-06-03 | 浙江工业大学 | Method for preparing spherical catalyst and special device thereof |
-
2010
- 2010-12-20 CN CN 201010596959 patent/CN102039206B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410509A (en) * | 2001-09-27 | 2003-04-16 | 中国石油化工股份有限公司 | Oil slurry charring firing device and its method |
| CN2773047Y (en) * | 2005-01-31 | 2006-04-19 | 中国科学院理化技术研究所 | Cased electrothermal furnace with micro-nanometer carbon material production by chemical gas-phase depositon |
| CN2862011Y (en) * | 2006-01-23 | 2007-01-24 | 张志有 | Slaking furnace |
| CN101444755A (en) * | 2008-12-24 | 2009-06-03 | 浙江工业大学 | Method for preparing spherical catalyst and special device thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538181A (en) * | 2014-12-29 | 2015-04-22 | 中国振华（集团）新云电子元器件有限责任公司 | Compacting method for manganese dioxide layer forming of tantalum capacitor |
| CN104538181B (en) * | 2014-12-29 | 2017-06-16 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of dense method of tantalum capacitor envelope |
| CN105170194A (en) * | 2015-09-17 | 2015-12-23 | 山东奥福环保科技股份有限公司 | Catalyst carrier protective jacket and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102039206B (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102039206B (en) | Catalyst calcining box | |
| CN206642490U (en) | Low temperature SCR denitration cooperates with dust arrester in a kind of industrial smoke | |
| CN105597454B (en) | High-temperature oxydation formula organic gas reagent cabinet | |
| CN201880536U (en) | Catalyst calcining box | |
| CN108295657A (en) | A kind of warehouse separated type denitrated reactor of low temperature and denitration method for flue gas | |
| CN207591549U (en) | A kind of adsorbent equipment for the adsorbent for efficiently flowing absorption VOCs | |
| CN208158966U (en) | A kind of honeycomb low temperature plasma generating device | |
| CN109482050A (en) | A kind of moving bed flue gas purification device | |
| CN201596465U (en) | Denitration system favorable for blowing deposited dust | |
| CN210674698U (en) | Novel active carbon adsorption box | |
| CN102829624B (en) | Desulfuration and impurity removal device and process of tunnel kiln exhaust gas | |
| CN211497510U (en) | Activated carbon adsorption tank and oil gas adsorption system | |
| CN110496531A (en) | A kind of low resistance energy-saving catalyst for denitrating flue gas module | |
| CN209302541U (en) | Low temperature SCR denitration device in coking flue gas | |
| CN206414876U (en) | A kind of filter core, filtration system for being used to remove biomass gasification tar | |
| CN211133486U (en) | Novel offline desorption integrated module | |
| CN211328928U (en) | Multilayer turbulent flow ultra-low temperature denitration catalyst module case | |
| CN214599087U (en) | Regenerating unit of arsenic poisoning SCR denitration catalyst | |
| CN211781130U (en) | Adopt natural gas to burn useless sodium chloride and turn into regenerator of refined industrial salt | |
| CN205258390U (en) | Be applied to coke oven gas purifier and have adsorber of leak protection entry distributor | |
| CN210268251U (en) | Electrode calcination flue gas access structure | |
| CN219722435U (en) | Denitration reactor capable of being overhauled without stopping machine | |
| CN212440782U (en) | Reactor and coke oven flue gas denitration system applying same | |
| CN203329612U (en) | Simple ammonia process desulfurizing tower with reactor arranged outside | |
| CN207976031U (en) | A kind of industrial production ventilation of gases equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 610045 Sichuan city of Chengdu province Wuhou District Vuko two West Road No. 2 Applicant after: Chengdu Dongfang KWH Environmental Protection Catalysts Co., Ltd. Address before: Vuko west two road 610045 Sichuan city of Chengdu Province, No. 2 Applicant before: Chengdu Dongfang KWH Environmental Protection Catalysts Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.2, Wuke West 2nd Road, Wuhou District, Chengdu, Sichuan 610045 Patentee after: Oriental kaitrey (Chengdu) Environmental Protection Technology Co.,Ltd. Address before: No.2, Wuke West 2nd Road, Wuhou District, Chengdu, Sichuan 610045 Patentee before: CHENGDU DONGFANG KWH ENVIRONMENTAL PROTECTION CATALYSTS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |