CN205087939U - Retrieve ti and W's device in follow waste flue gas denitration catalyst - Google Patents
Retrieve ti and W's device in follow waste flue gas denitration catalyst Download PDFInfo
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- CN205087939U CN205087939U CN201520736414.0U CN201520736414U CN205087939U CN 205087939 U CN205087939 U CN 205087939U CN 201520736414 U CN201520736414 U CN 201520736414U CN 205087939 U CN205087939 U CN 205087939U
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- tank
- reaction tank
- flue gas
- denitration catalyst
- kiln
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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Abstract
The utility model discloses a retrieve ti and W's device in follow waste flue gas denitration catalyst, include: the broken machine of hammer 1, acidolysis tank 2, filter press 3, a reaction tank 4, vacuum filter 5, B reaction tank 6, a drying chamber 7, a forge burning furnace 8, concentrated pond 9, the pond 10 of hydrolysising, leaf filter 11, B drying chamber 12 and B forge burning furnace 13, the broken machine of hammer 1, acidolysis tank 2, filter press 3, a reaction tank 4, vacuum filter 5, B reaction tank 6, a drying chamber 7, a forge burning furnace 8 and connect in order, concentrated pond 9, the pond 10 of hydrolysising, leaf filter 11, B drying chamber 12 and B forge burning furnace 13 and connect in order, concentrated pond 9 is connected with filter press 3. The utility model discloses can follow to retrieve respectively in the waste flue gas denitration catalyst and obtain net tiO2 and WO3, adopt the utility model discloses afterwards, tiO2, WO3's recovery efficiency reaches 95%, 93% respectively, and purity reaches 99%, 90% respectively.
Description
Technical field
The utility model relates to a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, belongs to waste flue gas denitration catalyst recovery technology field.
Background technology
SCR denitration technology is the necessary means that power plant reaches ultra-clean discharge, and catalyzer, as the core of SCR denitration technology, can lose activity due to reasons such as wearing and tearing or blockings in operational process.Can continue use after the part catalyst regeneration that can regenerate, unrenewable catalyzer then faces the condition (i.e., after the catalyst regeneration 2 ~ 3 times of enable regeneration, also cannot regenerate, need to carry out Appropriate application and process) of Appropriate application and disposal.The mode of external process waste denitration catalyst is all landfill at present, but power plants is more, and the annual waste denitration catalyst quantity produced is considerable.According to incompletely statistics, the output of the annual waste denitration catalyst of China is 50,000 tons, and from discarded denitrating catalyst recuperable TiO
2there are about 40,000 tons, WO
3there are 2500 tons, especially for WO
3, its price is very expensive.Therefore be economically or environmental angle consider that the recycling carrying out waste denitration catalyst is all necessary.
Processing mode abroad for waste denitration catalyst is all landfill, and the domestic recovery and utilization technology for denitrating catalyst is also still in research and stage of fumbling, yet there are no industrialization report so far.Found by retrieval, the recovery and utilization technology at present about waste denitration catalyst mainly comprises 2 kinds of modes: 1. high-temperature roasting method is (as patent application CN103088217A; CN101921916A; CN103508491A); 2. first use basic solution process, then add acid solution process (as patent application CN102936049A; CN102936039A).But adopting above-mentioned high-temperature roasting method to reclaim denitrating catalyst consumes energy more, is applicable to suitability for industrialized production; In addition, first use base extraction, denitrating catalyst is reclaimed again by the method for acid solution process, seriously (such as required alkali lye is excessive for reagent waste on the one hand, unnecessary alkali lye recycling acid solution neutralizing treatment), be unfavorable for effective utilization of resource, on the other hand, in the removal process of catalyzer, generate Na
2siO
3colloid, so when utilizing the mode of filtering to carry out solid-liquid separation, colloid is easy to stay on filter paper together with precipitating, and makes to be separated not exclusively, and then causes TiO
2and WO
3dNA purity is lower, and extraction efficiency is also lower simultaneously; In addition, waste flue gas denitration catalyst is also containing V
2o
5, due to WO
3and V
2o
5all belong to metal oxide, character is close, and simultaneously containing TiO in waste flue gas denitration catalyst
2and the mixture of glass fibre, therefore by V
2o
5and WO
3separately be not easy very much, this result also in WO
3dNA purity and organic efficiency lower.Therefore, a kind of new technology of current urgent need is by the TiO in waste flue gas denitration catalyst
2and WO
3extract completely.
Utility model content
The purpose of this utility model is, a kind of device reclaiming Ti and W from waste flue gas denitration catalyst is provided, it effectively can solve problems of the prior art, especially high-temperature roasting method power consumption more, be not suitable for suitability for industrialized production, and first with base extraction, TiO serious by the method reagent waste of acid solution process again
2and WO
3the problem that DNA purity and extraction efficiency are all lower.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, comprise: hammer-crusher, acid hydrolysis tank, plate-and-frame filter press, A reaction tank, vacuum filter, B reaction tank, A kiln, A calcining furnace, concentration basin, hydrolytic tank, leaf filter, B kiln and B calcining furnace, described hammer-crusher, acid hydrolysis tank, plate-and-frame filter press, A reaction tank, vacuum filter, B reaction tank, A kiln, A calcining furnace connects in turn, concentration basin, hydrolytic tank, leaf filter, B kiln is connected in turn with B calcining furnace, concentration basin is connected with plate-and-frame filter press.
Preferably, also comprise: air compressor machine and jetting machine, described jetting machine is connected with air compressor machine and hammer-crusher respectively, thus more effectively can remove impurity and the toxic substance (as arsenic, mercury, potassium oxide, sodium oxide) of catalyst surface, improve product purity, cost is also lower simultaneously.
Aforesaidly to reclaim from waste flue gas denitration catalyst in the device of Ti and W, also comprise: settling bowl, described settling bowl is connected with acid hydrolysis tank and plate-and-frame filter press respectively, thus can by colloidal polyurea wherein integrated macrobead, be conducive to removing all dirt in filtration, improve product purity.
Compared with prior art, by utilizing hammer-crusher, acid hydrolysis tank, plate-and-frame filter press, A reaction tank, vacuum filter, B reaction tank, A kiln, A calcining furnace, concentration basin, hydrolytic tank, leaf filter, B kiln and B calcining furnace in the utility model, especially by utilizing acid hydrolysis tank, plate-and-frame filter press, can by pure WO
3separate from titanyl sulfate and vanadylic sulfate solution, recycling A reaction tank, vacuum filter, B reaction tank, A kiln, A calcining furnace, concentration basin, hydrolytic tank, leaf filter, B kiln and B calcining furnace, can obtain pure TiO
2.And show according to mass data statistics, after adopting scheme of the present utility model, TiO
2, WO
3organic efficiency reach 95%, 93% respectively, purity reaches 99%, 90% respectively.In addition, recovery technology of the present utility model is without the need to high-temperature roasting, and thus relative energy-saving, is suitable for suitability for industrialized production; The utility model utilizes acid hydrolysis tank to carry out acid solution process simultaneously, without reagent waste, has effectively saved resource; In addition, also SiO can be obtained in the utility model
2with Al (OH)
3mixture, achieve Poly-generation, and this SiO
2with Al (OH)
3mixture can be used as product sell, for making refractory materials; SiO is obtained in the utility model
2mode simple and convenient (without colloid Na
2siO
3generate), and extraction yield is higher, shows: adopt device of the present utility model to reclaim waste flue gas denitration catalyst, gained SiO according to mass data statistics
2with Al (OH)
3mixture purity can reach 97%, SiO
2with Al (OH)
3the mixture rate of recovery can reach 89%.
Accompanying drawing explanation
Fig. 1 is the apparatus structure connection diagram of a kind of embodiment of the present utility model.
Reference numeral: 1-hammer-crusher, 2-acid hydrolysis tank, 3-plate-and-frame filter press, 4-A reaction tank, 5-vacuum filter, 6-B reaction tank, 7-A kiln, 8-A calcining furnace, 9-concentration basin, 10-hydrolytic tank, 11-leaf filter, 12-B kiln, 13-B calcining furnace, 14-air compressor machine, 15-jetting machine, 16-settling bowl.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment
Embodiment 1 of the present utility model: a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, as shown in Figure 1, comprise: hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 and B calcining furnace 13, described hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8 connects in turn, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 is connected in turn with B calcining furnace 13, concentration basin 9 is connected with plate-and-frame filter press 3.Also comprise: air compressor machine 14 and jetting machine 15, described jetting machine 15 is connected with air compressor machine 14 and hammer-crusher 1 respectively.Also comprise: settling bowl 16, described settling bowl 16 is connected with acid hydrolysis tank 2 and plate-and-frame filter press 3 respectively.
Embodiment 2: a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, as shown in Figure 1, comprise: hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 and B calcining furnace 13, described hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8 connects in turn, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 is connected in turn with B calcining furnace 13, concentration basin 9 is connected with plate-and-frame filter press 3.Also comprise: air compressor machine 14 and jetting machine 15, described jetting machine 15 is connected with air compressor machine 14 and hammer-crusher 1 respectively.
Embodiment 3: a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, as shown in Figure 1, comprise: hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 and B calcining furnace 13, described hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8 connects in turn, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 is connected in turn with B calcining furnace 13, concentration basin 9 is connected with plate-and-frame filter press 3.Also comprise: settling bowl 16, described settling bowl 16 is connected with acid hydrolysis tank 2 and plate-and-frame filter press 3 respectively.
Embodiment 4: a kind of device reclaiming Ti and W from waste flue gas denitration catalyst, as shown in Figure 1, comprise: hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 and B calcining furnace 13, described hammer-crusher 1, acid hydrolysis tank 2, plate-and-frame filter press 3, A reaction tank 4, vacuum filter 5, B reaction tank 6, A kiln 7, A calcining furnace 8 connects in turn, concentration basin 9, hydrolytic tank 10, leaf filter 11, B kiln 12 is connected in turn with B calcining furnace 13, concentration basin 9 is connected with plate-and-frame filter press 3.
The principle of work of a kind of embodiment of the present utility model: purged by the pressurized air of waste flue gas denitration catalyst air compressor machine 19, removes the dust in duct; Catalyzer after removing dust is rinsed with the water blast gun of jetting machine 20, removes the dust in duct further; Flushed catalyzer is dry.Hammer-crusher 1 is by break-up of catalyst, and the catalyst fines after pulverizing adds acid hydrolysis tank 2 and carries out acidolysis, after acidolysis, adds the polyacrylamide that concentration is 1%, at settling bowl 16 by integrated for colloidal polyurea wherein macrobead, obtains titanyl sulfate solution; Utilize plate-and-frame filter press 3 to filter titanyl sulfate solution, residue collection is for subsequent use, filtrate heat in concentration basin 9 concentrated after be hydrolyzed in hydrolytic tank 10, obtain hydrolysate; Described hydrolysate is filtered by leaf filter 11, obtains filtrate and metatitanic acid precipitation; Metatitanic acid precipitation is carried out Ficus caricaL, and dry at B kiln 12, calcining in B calcining furnace 13, get product TiO
2; Add after excessive ammonia reacts in A reaction tank 4 in filter residue after plate-and-frame filter press 3 filters, utilize vacuum filter 5 to filter; Filtrate is heated in B reaction tank 6, after (part) ammonia and water evaporate, generates order of ammoniumparatungstate crystal, utilizes A kiln 7 drying and utilizes A calcining furnace 8 to calcine, obtaining pure WO
3.
Claims (3)
1. one kind is reclaimed the device of Ti and W from waste flue gas denitration catalyst, it is characterized in that, comprise: hammer-crusher (1), acid hydrolysis tank (2), plate-and-frame filter press (3), A reaction tank (4), vacuum filter (5), B reaction tank (6), A kiln (7), A calcining furnace (8), concentration basin (9), hydrolytic tank (10), leaf filter (11), B kiln (12) and B calcining furnace (13), described hammer-crusher (1), acid hydrolysis tank (2), plate-and-frame filter press (3), A reaction tank (4), vacuum filter (5), B reaction tank (6), A kiln (7), A calcining furnace (8) connects in turn, concentration basin (9), hydrolytic tank (10), leaf filter (11), B kiln (12) is connected in turn with B calcining furnace (13), concentration basin (9) is connected with plate-and-frame filter press (3).
2. the device reclaiming Ti and W from waste flue gas denitration catalyst according to claim 1, it is characterized in that, also comprise: air compressor machine (14) and jetting machine (15), described jetting machine (15) is connected with air compressor machine (14) and hammer-crusher (1) respectively.
3. the device reclaiming Ti and W from waste flue gas denitration catalyst according to claim 1 and 2, it is characterized in that, also comprise: settling bowl (16), described settling bowl (16) is connected with acid hydrolysis tank (2) and plate-and-frame filter press (3) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736414.0U CN205087939U (en) | 2015-09-22 | 2015-09-22 | Retrieve ti and W's device in follow waste flue gas denitration catalyst |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736414.0U CN205087939U (en) | 2015-09-22 | 2015-09-22 | Retrieve ti and W's device in follow waste flue gas denitration catalyst |
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| Publication Number | Publication Date |
|---|---|
| CN205087939U true CN205087939U (en) | 2016-03-16 |
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|---|---|---|---|
| CN201520736414.0U Expired - Fee Related CN205087939U (en) | 2015-09-22 | 2015-09-22 | Retrieve ti and W's device in follow waste flue gas denitration catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152216A (en) * | 2015-09-22 | 2015-12-16 | 中国华电工程(集团)有限公司 | Method and device for recycling Ti and W from waste flue gas denitrification catalyst |
-
2015
- 2015-09-22 CN CN201520736414.0U patent/CN205087939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152216A (en) * | 2015-09-22 | 2015-12-16 | 中国华电工程(集团)有限公司 | Method and device for recycling Ti and W from waste flue gas denitrification catalyst |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20180922 |