CN217877039U - Honeycomb formula SCR catalyst drying and calcining device - Google Patents
Honeycomb formula SCR catalyst drying and calcining device Download PDFInfo
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- CN217877039U CN217877039U CN202222284638.5U CN202222284638U CN217877039U CN 217877039 U CN217877039 U CN 217877039U CN 202222284638 U CN202222284638 U CN 202222284638U CN 217877039 U CN217877039 U CN 217877039U
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Abstract
The utility model discloses a honeycomb type SCR catalyst drying and calcining device, which relates to the technical field of SCR denitration catalyst production, and adopts the technical scheme that the device comprises a shell, a high-temperature chamber arranged inside the shell, a bidirectional circulating fan arranged inside the shell, heaters symmetrically arranged at two sides of the shell, a fresh air pipeline communicated with the shell and a waste discharge branch pipe; the feeding frame can prevent the high-temperature chamber from being filled with the materials; a hot air channel is arranged between the shell and the high temperature chamber. The utility model provides a honeycomb formula SCR catalyst field have the problem at the bottom of equipment cost height, the yield, manufacturing cost height etc. among the prior art.
Description
Technical Field
The utility model relates to a SCR denitration catalyst production technical field, concretely relates to dry calcining device of honeycomb formula SCR catalyst.
Background
The environmental protection industry in China starts late, and the application of the SCR denitration catalyst lags behind that in the Western countries. At present, the ship industry and the gas unit honeycomb type SCR catalyst in China mainly depend on import. At present, the SCR honeycomb type porous catalysts in the ship industry, gas turbine units and the like in China mainly depend on import. At the present stage, SCR honeycomb type catalyst production enterprises in China all adopt the conventional tunnel kilns in the industries of ceramics, bricks and tiles and the like for drying, and use a mesh belt kiln for calcination and activation, so that the requirement of conventional product production with 35 holes or less is met. The method is applied to porous products with more than 35 holes in the ship industry and the gas turbine unit industry, the volume of a single item is small, a tunnel kiln and a mesh belt kiln cannot be filled with full load, and drying and calcining are divided into two working procedures, so that energy consumption is wasted; the air pressure resistance of the porous product with more than 35 holes is much larger than that of the conventional product, the flow field design in a tunnel kiln and a mesh belt kiln does not consider the influence of the multiple holes, the hot air in the tunnel kiln can not reduce the moisture to below 1 percent in a short time, the mesh belt kiln can not fully calcine the porous catalyst in a short time, so that the defects of drying cracks and calcining cracks occur, the yield is extremely low, and the product quality requirement can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes prior art not enough, provides a dry calcining device of honeycomb formula SCR catalyst to honeycomb formula SCR catalyst field has the problem at the bottom of equipment cost height, the yield, manufacturing cost height etc. among the solution prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a honeycomb type SCR catalyst drying and calcining device comprises a shell, a high-temperature chamber arranged in the shell, a bidirectional circulating fan arranged in the shell, heaters symmetrically arranged on two sides of the shell, a fresh air pipeline communicated with the shell and a waste discharge branch pipe; the feeding frame can prevent the feeding frame from entering the high-temperature chamber; a hot air channel is arranged between the shell and the high temperature chamber.
Preferably, the housing is of an oval steel construction.
Preferably, the inside of the shell is provided with arc-shaped guide plates which are arranged on the hot air channel and positioned on two sides of the bidirectional circulating fan.
Preferably, two sides of the high-temperature chamber are rotatably connected with a plurality of uniformly distributed adjusting plates.
Preferably, the top end of the waste discharge branch pipe is communicated with a waste discharge main pipe, and the waste discharge main pipe is in multiple sections and has different diameters; and a reducer pipe is arranged between the waste discharge main pipes with different diameters.
Preferably, the tail end of the waste discharge main pipe is provided with a cold air electric regulating valve.
The utility model discloses following beneficial effect has:
(1) When the device is used, the single temperature control area can be miniaturized, the multiple temperature control areas can be enlarged, and when the device with the multiple temperature control areas is used, the single control of each temperature area is realized, so that the aim of producing various products at the same time can be fulfilled. The temperature curves of the temperature control areas can be flexibly set according to the product types, and the method has the advantages of flexibility, multiple elements, low equipment manufacturing cost, high product rate, low production cost and the like. The catalyst has the characteristics of simple structure, multiple integration, small occupied area, low maintenance cost and the like, and the equipment cost and the catalyst production cost are greatly reduced;
(2) The hot air channel formed by the oval structure is a closed annular channel, so that the wind resistance energy loss can be effectively reduced, the hot air circulation is smoother, the arc-shaped guide plate uniformly divides the hot air channel into a plurality of channels, hot air is guided to the catalyst unit, and the ineffective circulation of the hot air in the hot air channel is avoided.
Drawings
FIG. 1 is a front view embodying an embodiment;
FIG. 2 is a side view of an embodiment;
fig. 3 is a schematic view of a truck embodying the feeder carriage.
Wherein the figures include the following reference numerals: 1, a support; 2. uniformly distributing adjusting plates; 3. a housing; 4. a heater; 5. a hot air passage; 6. an arc-shaped guide plate; 7. a fresh air duct; 8. a fresh air electric regulating valve; 9. a high-temperature chamber; 10. a bidirectional circulating fan; 11. a bidirectional circulating fan bidirectional adjusting mechanism; 12. a waste discharge branch pipe; 13. a cold air electric regulating valve; 14. a waste discharge main pipe; 15. a honeycomb SCR catalyst unit; 16. the manual regulating valve of the waste discharge branch pipe; 17. a top guardrail; 18. an electric control cabinet; 19. a feeding frame; 20. a feed carriage transmission mechanism; 21. a sealing door; 22. a reducer pipe; 23. a waste discharge fan; 24. an exhaust gas treatment device; 25. a waste discharge chimney; 26. and a thermocouple.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The embodiment is as follows: a honeycomb type SCR catalyst drying and calcining device is shown in figures 1 to 3 and comprises a support 1, a local adjusting plate 2, a shell 3, a heater 4, a hot air channel 5, an arc-shaped guide plate 6, a fresh air pipeline 7, a fresh air electric adjusting valve 8, a high temperature chamber 9, a bidirectional circulating fan 10, a bidirectional circulating fan bidirectional adjusting mechanism 11, a waste discharge branch pipe 12, a cold air electric adjusting valve 13, a waste discharge main pipe 14, a waste discharge branch pipe manual adjusting valve 16, a top guardrail 17, an electric control cabinet 18, a feeding frame 19, a feeding frame transmission structure 20, a closed door 21, a reducer pipe 22, a waste discharge fan 23, a waste gas treatment device 24, a waste discharge chimney 25 and a thermocouple 26. The honeycomb SCR catalyst unit 15 is located within the high temperature chamber 9.
The shell 3 is of an oval steel structure, and a heat-insulating layer (filled with aluminum silicate heat-insulating cotton) is arranged inside the shell. The hot air channel formed by the oval structure is a closed annular channel, so that the wind resistance energy loss can be effectively reduced, the hot air can flow more smoothly, and the device can be effectively sealed. The support is fixed at the bottom of casing 1 and supports casing 3. A hot air channel 5 is arranged between the shell 3 and the high temperature chamber 9. The top end of the shell 3 is fixed with a top guardrail 17, so that the safety of maintenance workers in overhauling is improved.
A plurality of temperature control areas are arranged in the shell, and a bidirectional circulating fan 10, a bidirectional circulating fan bidirectional adjusting mechanism 11, a heater 4, a fresh air pipeline 7, a fresh air electric adjusting valve 8, a waste discharge branch pipe 12, a waste discharge branch pipe manual adjusting valve 16 and a thermocouple 26 are arranged in each temperature control area. The heater 4 can adopt various heat source devices such as a gas burner, an electric heater, a waste heat exchanger and the like, and is selected according to the field favorable conditions.
The bidirectional circulating fan 10 is arranged inside the shell 3 and above the high-temperature chamber 9, and the bidirectional circulating fan 10 rotates to drive hot air to circulate in the hot air channel 5. The bidirectional adjusting mechanism 11 of the bidirectional circulating fan comprises a rotating shaft fixedly connected with the shell of the bidirectional circulating fan 10 and a motor driving the rotating shaft to rotate, the motor can drive the rotating shaft to rotate 180 degrees, so that the bidirectional circulating fan 10 is driven to rotate 180 degrees, the direction of the bidirectional circulating fan 10 is changed, and the flowing direction of hot air in the hot air channel 5 is changed.
In each temperature control area, the number of the heaters 4 and the thermocouples 26 is two, the heaters are respectively arranged on two sides of the shell 3, and the heaters can uniformly heat two sides inside the shell 3.
One side of the shell 3 is provided with an electric control cabinet 18, and the electric control cabinet 18 can receive a temperature signal transmitted by the thermocouple 26 and control the equipment.
In each temperature control area, the number of the fresh air pipelines 7 and the fresh air electric regulating valves 8 is two, and the fresh air pipelines and the fresh air electric regulating valves are symmetrically arranged at the top end of the shell 3. The fresh air duct 7 can communicate with the interior of the housing 3 to provide fresh air within the housing 3. The fresh air electric regulating valve 8 is a conventional valve.
In each temperature control area, the number of the waste discharge branch pipes 12 and the number of the waste discharge branch pipe manual regulating valves 16 are two, and the waste discharge branch pipes are symmetrically arranged at the top end of the shell 3. The exhaust branch pipe 12 can communicate with the inside of the housing 3 for exhaust of exhaust gas inside the housing 3. The waste branch manual regulating valve 16 is a conventional valve.
An arc-shaped guide plate 6 is arranged inside the shell 3, and the arc-shaped guide plate 6 is arranged on the hot air channel 5 and positioned on two sides of the bidirectional circulating fan 10. The arc-shaped guide plate 6 uniformly divides the hot air channel into a plurality of channels, and guides hot air to the catalyst unit, thereby avoiding ineffective circulation of the hot air in the hot air channel 5.
Two sides of the high-temperature chamber 9 are rotatably connected with a plurality of uniformly-distributed adjusting plates 2, and the uniformly-distributed adjusting plates 2 are also positioned at hot air inlets and outlets at two ends of the honeycomb SCR catalyst unit 15. The air pressure and flow can be adjusted by rotating the uniformly distributed adjusting plates 2, so that the flow and the flow velocity of hot air entering the catalyst unit are uniform.
The top end of the waste discharge branch pipe 12 is communicated with a waste discharge main pipe 14, and the waste discharge main pipe 14 is in multiple sections and has different diameters. A reducer pipe 22 is provided between the waste main pipes 14 between the different diameters. The reducer pipe 22 is set according to the number of the waste discharge branch pipes, so that the waste discharge air pressure, flow velocity and flow of each temperature zone are more uniform, and the waste discharge air pressure of each control temperature zone is effectively adjusted. The waste discharge fan 23 is communicated with the waste discharge main pipe 14. An air outlet of the exhaust fan 23 is provided with an exhaust gas treatment device 24, and the exhaust gas treatment device 24 treats the exhaust gas generated in the calcining process, so that the discharged exhaust gas reaches the discharge standard. The exhaust gas treatment device 24 is communicated with a waste discharge chimney 25.
The tail end of the waste discharge main pipe 14 is provided with a cold air electric regulating valve 13, cold air can be doped at a high temperature period, the waste discharge fan 23 is protected, and the waste discharge fan 23 is prevented from being damaged by high temperature.
The feeding frame 19, the feeding car transmission mechanism 20 and the sealing door 21 are assembled into a whole. In use, the honeycomb SCR catalyst units 15 are placed on the feeder carriage 19 and transported by the feeder carriage 19. The sealing door 21 is arranged at one end of the feeding frame 19 far away from the shell 3, plays a role in sealing and blocking, and can seal the high-temperature chamber 9 when the feeding frame 19 enters the high-temperature chamber 9. The feeding carriage transmission mechanism 20 comprises a driving motor and a transmission component, wherein the driving motor is arranged on the outer side (the end far away from the feeding carriage 19) of the sealing door 21.
When the device is used, the single temperature control area can be miniaturized, the multiple temperature control areas can be enlarged, and when the device with the multiple temperature control areas is used, the independent control of each temperature area is realized, so that the aim of producing various products at the same time can be fulfilled. The temperature curves of the temperature control areas can be flexibly set according to the product types, and the method has the advantages of flexibility, multiple elements, low equipment manufacturing cost, high product rate, low production cost and the like. The catalyst has the characteristics of simple structure, multiple integration, small occupied area, low maintenance cost and the like, and greatly reduces the equipment cost and the catalyst production cost.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A honeycomb formula SCR catalyst drying calcination device which characterized in that: comprises a shell (3), a high-temperature chamber (9) arranged inside the shell (3), a bidirectional circulating fan (10) arranged inside the shell (3), heaters (4) symmetrically arranged at two sides of the shell (3), a fresh air pipeline (7) communicated with the shell (3) and a waste discharge branch pipe (12); the device also comprises a feeding frame (19) which can be placed inside the high-temperature chamber (9); a hot air channel (5) is arranged between the shell (3) and the high temperature chamber (9).
2. The honeycomb SCR catalyst dry calcination device of claim 1, wherein: the shell (3) is of an elliptical steel structure.
3. The honeycomb SCR catalyst dry calcination device of claim 2, wherein: the inside of casing (3) is installed with arc guide plate (6), and arc guide plate (6) set up on hot-blast passageway (5) and are located two sides of two-way circulating fan (10).
4. The honeycomb SCR catalyst dry calcination device of claim 1, wherein: two sides of the high-temperature chamber (9) are rotatably connected with a plurality of uniformly-distributed adjusting plates (2).
5. The device of claim 1, wherein: the top end of the waste discharge branch pipe (12) is communicated with a waste discharge main pipe (14), and the waste discharge main pipe (14) is in multiple sections and has different diameters; a reducer pipe (22) is arranged between the waste discharge main pipes (14) with different diameters.
6. The honeycomb SCR catalyst dry calcination device of claim 5, wherein: and a cold air electric regulating valve (13) is arranged at the tail end of the waste discharge main pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284638.5U CN217877039U (en) | 2022-08-29 | 2022-08-29 | Honeycomb formula SCR catalyst drying and calcining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284638.5U CN217877039U (en) | 2022-08-29 | 2022-08-29 | Honeycomb formula SCR catalyst drying and calcining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217877039U true CN217877039U (en) | 2022-11-22 |
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ID=84079627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222284638.5U Active CN217877039U (en) | 2022-08-29 | 2022-08-29 | Honeycomb formula SCR catalyst drying and calcining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217877039U (en) |
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2022
- 2022-08-29 CN CN202222284638.5U patent/CN217877039U/en active Active
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