CN203550476U - SCR denitration catalyst I-stage drying and air-distribution hot air circulation system - Google Patents
SCR denitration catalyst I-stage drying and air-distribution hot air circulation system Download PDFInfo
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- CN203550476U CN203550476U CN201320588054.5U CN201320588054U CN203550476U CN 203550476 U CN203550476 U CN 203550476U CN 201320588054 U CN201320588054 U CN 201320588054U CN 203550476 U CN203550476 U CN 203550476U
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- hot air
- hothouse
- denitrating catalyst
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- cloth wind
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Abstract
The utility model provides an SCR denitration catalyst I-stage drying and air-distribution hot air circulation system. By the aid of the system, interior temperature and humidity of a drying chamber is even, front and rear samples in the drying chamber are dried at uniform rate, the I-stage drying cycle is shortened, and dried products are protected from cracking. The SCR denitration catalyst I-stage- drying and air-distribution hot air circulation system comprises the drying chamber, a heat exchanger, and a circulation fan. The drying chamber comprises two end walls, a sidewall and a cavity enclosed by the end walls and the sidewall. A hot air passage is arranged in the cavity. One end wall is provided with an openable drying chamber door. The SCR denitration catalyst stage-I drying and air-distribution hot air circulation system is characterized in that a through pore is arranged below the other end wall and communicated with the cavity.
Description
Technical field
The utility model relates to the technical field of air cleaning facility ventilating opening structure, is specially the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section.
Background technology
In recent years, the control of nitrogen oxide is the urgent objective requirement of national economy sustainable development and environmental protection always, in its control technology, and the SCR (NH take ammonia as reducing agent
3-SCR) technology due to mature and reliable in occupation of dominant position.
The steps such as that the moulding process of SCR denitrating catalyst mainly comprises is mixing, extrude, be dried, roasting, all impacts important on forming of SCR denitrating catalyst of these steps.Wherein, hygrometric state catalyst after extrusion molding need to be dried, in dry process, catalyst can cause the contraction of product on external diameter and length direction because of dehydration, if the humiture field at this moment in hothouse is inhomogeneous, will cause the moisture on same catalyst monomer to lose inhomogeneous, same catalyst is inconsistent in contraction axially and in the radial direction, thereby causes catalyst cracking.Also likely because the humiture in hothouse is inhomogeneous, do not make the inside and outside catalyst rate of drying of whole hothouse not etc., thereby cause arid cycle elongated, affect the production cycle.
The existing SCR denitrating catalyst I section dry-heat air circulatory system comprises hothouse, heat exchanger and circulating fan, and door is established in hothouse outer end, all the other several face closures; Hothouse bottom is provided with hot blast air channel, is evenly distributed with hot blast air outlet on hot blast air channel, and hothouse top is provided with return air inlet; Hot blast air channel is connected with the outlet of circulating fan, and return air inlet is connected with the suction inlet of circulating fan, and heat exchanger is positioned on the outlet air channel of circulating fan, and the steam inlet of heat exchanger is connected with main steam pipe.The weak point of this device is: the skewness of return air inlet, though hothouse is established an end lower limb insulation minuteness envelope, but still cannot accomplish to seal completely, after hydrofuge, while there is negative pressure in hothouse, to cause hothouse to leak out, now establish an end lower limb and the external world and have circulation of air, cause the humiture in hothouse inhomogeneous, catalyst rate of drying by door end is fast, an other end rate of drying that end is relative is slow with establishing, cause I section long arid cycle, even cause dry products cracking, this is the technical barrier of a long-term puzzlement catalyst industry.
Summary of the invention
For the problems referred to above, the utility model provides the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section, it makes dry indoor temperature and humidity even, and then before and after hothouse, sample drying speed is consistent, makes shortening arid cycle of I section, guarantees that dry products can not ftracture.
The hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section, its technical scheme is such: it comprises hothouse, heat exchanger, circulating fan, described hothouse comprises the cavity that end walls, sidewall and end walls, sidewall surround, hot blast air channel is arranged in cavity, wherein one end of end walls is openable hothouse door, it is characterized in that: the below of the described end wall of the other end has the aperture running through, the inner side of described aperture is communicated with described cavity.
It is further characterized in that: described aperture is specially circular aperture;
Described aperture horizontally becomes single layout;
Described hot blast air channel is positioned at the below of described cavity, described hot blast has been evenly arranged hot blast air outlet on air channel, the both upper ends thereof of described cavity is respectively provided with return air inlet, described return air inlet is communicated with return airway, described return airway, heat exchanger, circulating fan is positioned at described hothouse outside, the outlet of described return airway is communicated to the import of described circulating fan, one end outlet of described circulating fan is connected with hydrofuge air channel, other end outlet is communicated with the import of described heat exchanger, the outlet of described heat exchanger is communicated with described hot blast air channel by connecting pipe, the steam inlet of heat exchanger is connected with main steam pipe,
Described return air inlet is positioned on the axis of pitch of upper wall of described hothouse, and two described return air inlets are arranged symmetrically with about the axis of pitch of the upper wall of described hothouse;
The porch in described hydrofuge air channel is provided with hydrofuge air channel control valve;
The center of the upper wall of described hothouse is provided with Temperature Humidity Sensor, and described humidity temperature pickup is positioned at described cavity;
Described main steam pipe is circumscribed with steam-heating pipe, and described steam-heating pipe is communicated with the steam inlet of described heat exchanger, in described steam-heating pipe, is provided with temperature control valve;
Described main steam pipe is circumscribed with humidifier tube, and described humidifier tube is communicated with the other end outlet of described circulating fan, and humidification control valve is installed in described humidifier tube;
The porch of described main steam pipe is provided with main steam control valve, and described main steam control valve is specially manual modulation valve.
Adopt after structure of the present utility model, because the below of the end wall of the corresponding other end of hothouse door has the aperture running through, and the cavity that the inner side of aperture connection end walls, sidewall surround, it makes hothouse keep return air even in whole dry run, also just make dry indoor temperature and humidity more even, and then sample drying speed is consistent before and after hothouse, makes shortening arid cycle of I section, guarantee that dry products can not ftracture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the circular aperture of the other end end wall of cavity of the present utility model is arranged schematic diagram.
The specific embodiment
See Fig. 1, Fig. 2, it comprises hothouse 15, heat exchanger 9, circulating fan 6, hothouse comprises the cavity 1 that end walls, sidewall and end walls, sidewall surround, hot blast air channel 2 is arranged in cavity 1, wherein one end of end walls is that the below of the end wall 12 of openable hothouse door 13, the other end has the aperture 14 running through, and the inner side of aperture 14 is communicated with cavity 1.Aperture 14 is specially circular aperture; Aperture 14 horizontally becomes single layout; Hot blast air channel 2 is positioned at the below of cavity 1, on hot blast air channel 2, be evenly arranged hot blast air outlet, the both upper ends thereof of cavity 1 is respectively provided with return air inlet 3, return air inlet 3 is communicated with return airway 4, return airway 4, heat exchanger 6, circulating fan 6 are positioned at hothouse 15 outsides, the outlet of return airway 4 is communicated to the import of circulating fan 6, one end outlet of circulating fan 6 is connected with the import of hydrofuge air channel 7, other end outlet connection heat exchanger 6, the outlet of heat exchanger 6 is communicated with hot blast air channel 2 by connecting pipe 16, and the steam inlet of heat exchanger 6 is connected with main steam pipe 11; Return air inlet 3 is positioned on the axis of pitch of upper wall of hothouse 15, and two return air inlets 3 are arranged symmetrically with about the axis of pitch of the upper wall of hothouse 15; The porch in hydrofuge air channel 7 is provided with hydrofuge air channel control valve 17; The center of the upper wall of hothouse 15 is provided with Temperature Humidity Sensor 5, and humidity temperature pickup 5 is positioned at cavity 1; Main steam pipe 11 is circumscribed with steam-heating pipe 10, and steam-heating pipe 10 is communicated with the steam inlet of heat exchanger 9, is provided with temperature control valve 20 in steam-heating pipe 10; Main steam pipe 11 is circumscribed with humidifier tube 8, and the other end outlet of humidifier tube 8 communication loop blower fans 6, is provided with humidification control valve 18 in humidifier tube 8; The porch of main steam pipe 11 is provided with main steam control valve 19, and main steam control valve 19 is specially manual modulation valve.
Claims (10)
1. the hot air circulating system of the dry cloth wind of SCR denitrating catalyst I section, its technical scheme is such: it comprises hothouse, heat exchanger, circulating fan, described hothouse comprises the cavity that end walls, sidewall and end walls, sidewall surround, hot blast air channel is arranged in cavity, wherein one end of end walls is openable hothouse door, it is characterized in that: the below of the described end wall of the other end has the aperture running through, the inner side of described aperture is communicated with described cavity.
2. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 1, is characterized in that: described aperture is specially circular aperture.
3. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 1, is characterized in that: described aperture horizontally becomes single layout.
4. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 1, it is characterized in that: described hot blast air channel is positioned at the below of described cavity, described hot blast has been evenly arranged hot blast air outlet on air channel, the both upper ends thereof of described cavity is respectively provided with return air inlet, described return air inlet is communicated with return airway, described return airway, heat exchanger, circulating fan is positioned at described hothouse outside, the outlet of described return airway is communicated to the import of described circulating fan, one end outlet of described circulating fan is connected with hydrofuge air channel, other end outlet is communicated with the import of described heat exchanger, the outlet of described heat exchanger is communicated with described hot blast air channel by connecting pipe, the steam inlet of heat exchanger is connected with main steam pipe.
5. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 4, it is characterized in that: described return air inlet is positioned on the axis of pitch of upper wall of described hothouse, and two described return air inlets are arranged symmetrically with about the axis of pitch of the upper wall of described hothouse.
6. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 5, is characterized in that: the porch in described hydrofuge air channel is provided with hydrofuge air channel control valve.
7. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 6, is characterized in that: the center of the upper wall of described hothouse is provided with Temperature Humidity Sensor, and described humidity temperature pickup is positioned at described cavity.
8. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 7, it is characterized in that: described main steam pipe is circumscribed with steam-heating pipe, described steam-heating pipe is communicated with the steam inlet of described heat exchanger, in described steam-heating pipe, is provided with temperature control valve.
9. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 8, it is characterized in that: described main steam pipe is circumscribed with humidifier tube, described humidifier tube is communicated with the other end outlet of described circulating fan, and humidification control valve is installed in described humidifier tube.
10. the hot air circulating system of the dry cloth wind of a kind of SCR denitrating catalyst I section according to claim 9, is characterized in that: the porch of described main steam pipe is provided with main steam control valve, and described main steam control valve is specially manual modulation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588054.5U CN203550476U (en) | 2013-09-24 | 2013-09-24 | SCR denitration catalyst I-stage drying and air-distribution hot air circulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320588054.5U CN203550476U (en) | 2013-09-24 | 2013-09-24 | SCR denitration catalyst I-stage drying and air-distribution hot air circulation system |
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| CN201320588054.5U Expired - Lifetime CN203550476U (en) | 2013-09-24 | 2013-09-24 | SCR denitration catalyst I-stage drying and air-distribution hot air circulation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486841A (en) * | 2013-09-24 | 2014-01-01 | 无锡华光新动力环保科技股份有限公司 | Hot air circulation system for I-phase drying air distribution of SCR (selective catalytic reduction) denitrated catalyst |
| CN106288203A (en) * | 2016-08-19 | 2017-01-04 | 安徽元琛环保科技股份有限公司 | A kind of moisture control system of denitrating catalyst primary drying operation |
| CN106705637A (en) * | 2015-11-13 | 2017-05-24 | 佛山市南海喜德佳陶瓷机械有限公司 | Hot air circulation device for drying kiln |
-
2013
- 2013-09-24 CN CN201320588054.5U patent/CN203550476U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486841A (en) * | 2013-09-24 | 2014-01-01 | 无锡华光新动力环保科技股份有限公司 | Hot air circulation system for I-phase drying air distribution of SCR (selective catalytic reduction) denitrated catalyst |
| CN103486841B (en) * | 2013-09-24 | 2015-08-19 | 无锡华光新动力环保科技股份有限公司 | The hot air circulating system of the dry cloth wind of a kind of SCR denitration I section |
| CN106705637A (en) * | 2015-11-13 | 2017-05-24 | 佛山市南海喜德佳陶瓷机械有限公司 | Hot air circulation device for drying kiln |
| CN106288203A (en) * | 2016-08-19 | 2017-01-04 | 安徽元琛环保科技股份有限公司 | A kind of moisture control system of denitrating catalyst primary drying operation |
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