CN211189739U - Alkaline grinding material injection system - Google Patents
Alkaline grinding material injection system Download PDFInfo
- Publication number
- CN211189739U CN211189739U CN201921407540.6U CN201921407540U CN211189739U CN 211189739 U CN211189739 U CN 211189739U CN 201921407540 U CN201921407540 U CN 201921407540U CN 211189739 U CN211189739 U CN 211189739U
- Authority
- CN
- China
- Prior art keywords
- alkaline
- fixedly connected
- flue
- hot air
- alkaline material
- 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.)
- Active
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The utility model discloses an basicity grinding material injection system, including the flue, the breaker, basicity feed bin, feeder, the milling machine, the hot-blast main, hot-blast generator and basicity material shower nozzle, the discharge gate of breaker passes through the feed inlet of pipeline fixed connection basicity feed bin, the discharge gate fixed connection feeder's of basicity feed bin feed inlet, feeder's discharge gate fixed connection milling machine's feed inlet, pipeline fixed connection hot-blast main is passed through to the discharge gate of milling machine, the one end fixed connection hot-blast generator's of hot-blast main air outlet, on the hot-blast main and be located fixedly connected with fan between hot-blast generator and the pipeline, the other end of hot-blast main gets into in the flue, and fixedly connected with basicity material shower nozzle, the upper and lower both ends difference fixedly connected with SCR of just being located the basicity material shower nozzle on the flue. The utility model has the advantages of being scientific and reasonable in structure, it is effectual to the acid gas desorption in the flue, convenient operation is fit for using widely.
Description
Technical Field
The utility model relates to an alkaline material sprays technical field, specifically relates to an alkaline grinding material injection system.
Background
In a flue of a power plant, SO can be contained in flue gas from an SCR denitration device3Acid gas such as HCl, HF, these acid gas react very easily and generate ammonium bisulfate, cause the jam of other equipment in the flue to influence the normal operating of equipment, in case equipment causes the jam, just so need clear stifled, extravagant a large amount of manpower and materials, for this reason, the utility model provides an alkaline grinding material injection system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide an alkaline powder abrasive material injection system, contain acid gas in the flue gas that comes out in the SCR of solving current power plant's flue denitration device, can react and produce ammonium bisulfate, cause other equipment in the flue to block up and unable normal operating's problem easily.
The utility model provides a technical scheme that above-mentioned problem adopted is: the alkaline powder grinding material injection system comprises a flue and is characterized in that: the device comprises a crusher, an alkaline bin, a feeding device, a flour mill, a hot air pipe, a hot air generator and an alkaline material spray head, wherein a discharge port of the crusher is fixedly connected with a feed port of the alkaline bin through a pipeline, a discharge port of the alkaline bin is fixedly connected with a feed port of the feeding device, a discharge port of the feeding device is fixedly connected with a feed port of the flour mill, a discharge port of the flour mill is fixedly connected with the hot air pipe through a pipeline, one end of the hot air pipe is fixedly connected with an air outlet of the hot air generator, a fan is fixedly connected on the hot air pipe and between the hot air generator and the pipeline, the other end of the hot air pipe enters a flue, the alkaline material spray head is fixedly connected with the SCR denitration device and the air preheater respectively at the upper end and the lower end of the alkaline material spray head on the flue, and a flue gas outlet at the bottom end of, and a flue gas pressure reduction device is fixedly connected on the flue and between the SCR denitration device and the alkaline material spray head, and the flue gas pressure detection probe is electrically connected with the flue gas pressure reduction device.
Further, the feeding device is a screw feeder.
Further, the fan is a high-temperature fan.
Further, the alkaline material spray head is a grid type spray head.
The method for manufacturing and spraying the alkaline powder abrasive comprises the following steps:
① crushing, namely crushing the massive alkaline material to the required particle size by a crusher according to the feeding requirement of the pulverizer;
② storing, wherein the crushed particles are conveyed to an alkaline storage bin through a pipeline for storage;
③ feeding, namely conveying the alkaline material particles stored in the alkaline material bin into the pulverizer through a feeding device;
④ grinding material, grinding the alkaline material particles conveyed by the feeding device into powder by the grinder;
⑤ feeding, wherein the flour mill conveys the ground powdery alkaline material into a hot air pipe through a pipeline;
⑥ flue pressure regulation, wherein a flue gas pressure reduction device in the flue reduces the pressure of the flue gas according to the flue gas pressure value at the smoke outlet of the SCR denitration device measured by the flue gas pressure detection probe, so that the pressure of the flue gas reaches the standard requirement;
⑦ spraying material, wherein the hot air generator and the fan are turned on, the fan blows hot air in the hot air generator into the alkaline material nozzle through the hot air pipe and into the flue, and simultaneously the hot air blows alkaline material powder conveyed by the pulverizer into the alkaline material nozzle and uniformly into the flue through the alkaline material nozzle;
⑧ removing reaction, namely reacting alkaline material powder blown into the flue by the alkaline material nozzle with the acid gas in the flue gas to remove the acid gas in the flue gas.
Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses a breaker, alkaline feed bin, feeder, milling machine, hot-blast main, hot-blast generator, the setting of fan and alkaline material shower nozzle, can process the alkaline material of bold form, become the powder at last, then even and accurate the play smoke outlet department of blowing in SCR knock-off device, alkaline material powder can carry out the desorption to the acid gas in the flue gas, has avoided a large amount of ammonium bisulfate to generate, and causes the jam of other equipment in the flue, has reduced the clear stifled frequency of equipment in the flue, has saved manpower and materials, has prolonged the life-span of equipment use, the utility model has the advantages of being scientific and reasonable in structure, it is effectual to the acid gas desorption in the flue gas in the flue, convenient operation is fit for using widely.
Drawings
Fig. 1 is a schematic structural diagram of an alkaline powder grinding material injection system in an embodiment of the present invention.
In the figure: 1-a crusher, 2-a pipeline, 3-an alkaline bin, 4-a feeding device, 5-a flour mill, 6-a hot air pipe, 7-a hot air generator, 8-a fan, 9-an alkaline material spray head, 10-a flue, 11-an SCR pin removal device, 12-an air preheater, 13-a flue gas pressure reduction device and 14-a flue gas pressure detection probe.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, it can be seen that: the alkaline grinding material injection system in the embodiment comprises a crusher 1, the crusher 1 can crush massive alkaline materials, a discharge port of the crusher 1 is fixedly connected with a feed port of an alkaline bin 3 through a pipeline 2, the alkaline bin 3 can store alkaline particles, the discharge port of the alkaline bin 3 is fixedly connected with a feed port of a feeding device 4, the feeding device 4 can convey the alkaline particles, the discharge port of the feeding device 4 is fixedly connected with a feed port of a pulverizer 5, the pulverizer 5 can grind the alkaline particles into powder, the discharge port of the pulverizer 5 is fixedly connected with a hot air pipe 6 through the pipeline 2, one end of the hot air pipe 6 is fixedly connected with an air outlet of a hot air generator 7, the hot air generator 7 can generate hot air, a fan 8 is fixedly connected between the hot air generator 7 and the pipeline 2 on the hot air pipe 6, and the fan 8 can transmit the hot air to a flue 10, the other end of hot-blast main 6 gets into in flue 10, and fixedly connected with alkaline material shower nozzle 9, alkaline material shower nozzle 9 can evenly spout the material, on flue 10 and the upper and lower both ends that are located alkaline material shower nozzle 9 are fixedly connected with SCR respectively and are taken off round pin device 11 and air preheater 12, the flue gas outlet fixedly connected with flue gas pressure test probe 14 of SCR takeoff round pin device 11 bottom, flue gas pressure test probe 14 can detect the pressure of flue gas in flue 10, on flue 10 and be located SCR and take off fixedly connected with flue gas pressure reduction means 13 between round pin device 11 and the alkaline material shower nozzle 9, flue gas pressure reduction means 13 can step down the flue gas.
The feeding device 4 is a screw feeder, so that feeding is convenient, stable and reliable; the fan 8 is a high-temperature fan, is suitable for conveying hot air and has long service life; the alkaline material spray head 9 is a grid type spray head, the discharge hole of the grid type spray head is of a grid type, the discharge range is large, and the discharge is uniform; flue gas pressure measurement probe 14 electric connection flue gas pressure reduction means 13, flue gas pressure measurement probe 14 survey the flue gas pressure size signal and can transmit for flue gas pressure reduction means 13.
The implementation process comprises the following steps:
the method for manufacturing and spraying the alkaline powder abrasive comprises the following steps:
① crushing, namely crushing a large alkaline material to a required particle size by using a crusher 1 according to the feeding requirement of the pulverizer 5, wherein the alkaline material comprises hydroxides, carbonates and oxides of potassium, sodium and calcium, and crushing the alkaline material to a particle size of 6-13 mm by using the crusher 1;
② storing material, namely conveying the crushed particles into an alkaline storage bin 3 through a pipeline 2 for storage, wherein the size of the alkaline storage bin 3 is 100 and 200 cubic meters, and storing the alkaline particles according to the amount of about 7 days of use;
③ feeding, namely conveying alkaline material particles stored in the alkaline material bin 3 into the pulverizer 5 through the feeding device 4, and automatically conveying the particles in the alkaline material bin 3 into the pulverizer 5 through the screw feeder;
④ grinding material, grinding the alkaline material particles conveyed by the feeding device 4 into powder by the grinding machine 5;
⑤ feeding, the flour mill 5 sends the ground powder alkaline material into the hot blast pipe 6 through the pipeline 2;
⑥ flue pressure regulation, wherein a flue gas pressure reduction device 13 in the flue 10 reduces the pressure of the flue gas according to the value of the flue gas pressure at the flue gas outlet of the SCR denitration device 11 measured by a flue gas pressure detection probe 14, so that the pressure of the flue gas reaches the standard requirement, and the pressure difference between the flue gas pressure at the flue gas outlet of the SCR denitration device 11 and the pressure of hot air blown out from the hot air pipe 6 is about 0.5 KPa;
⑦ spraying material, namely opening a hot air generator 7 and a fan 8, blowing hot air in the hot air generator 7 into an alkaline material spray head 9 through a hot air pipe 6 by the fan 8 and then into a flue 10, blowing alkaline material powder conveyed by a flour mill 5 into the alkaline material spray head 9 through the hot air and then uniformly into the flue 10 through the alkaline material spray head 9, wherein the alkaline material spray head 9 is a grid type spray head and can uniformly blow the alkaline powder into flue gas so as to be convenient for fully reacting with acid gas in the flue gas;
⑧ removing reaction, wherein the alkaline material powder blown into the flue 10 by the alkaline material nozzle 9 reacts with the acid gas in the flue gas to remove the acid gas in the flue 10, and the acid gas in the flue gas mainly contains SO3HCl and HF, alkaline material powder and acidic gas SO in flue gas3HCl and HF react to remove SO in the flue gas3And acidic gases such as HCl and HF avoid the generation of a large amount of ammonium bisulfate, and also avoid the blockage of other equipment in the flue 10 due to the ammonium bisulfate, and the gas in the flue 10 enters the air preheater 12 after being deprived of the acidic gases, and continues to run downwards after passing through the air preheater 12 and entering the flue 10.
The utility model discloses a preparation and injection method of alkaline powder grinding material injection system and alkaline powder abrasive material, through breaker 1, alkaline feed bin 3, feeder 4, milling machine 5, hot-blast main 6, hot-blast generator 7, fan 8 and alkaline material shower nozzle 9's setting, can carry out the processing with massive alkaline material, become the powder at last, then even and accurate the smoke outlet department that blows in SCR and sells device 11, alkaline material powder can carry out the desorption to the acid gas in the flue gas, a large amount of ammonium bisulfate has been avoided and has been generated, and cause the jam of other equipment in the flue 10, the clear stifled frequency of equipment in having reduced flue 10, manpower and materials have been saved, the life-span of equipment use has been prolonged, the utility model discloses structure scientific and reasonable, it is effectual to the acid gas desorption in the flue gas 10, and convenient for operation, and is suitable for being generalized to use.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (4)
1. The utility model provides an alkaline grinding material injection system, includes flue (10), its characterized in that: the alkaline material crushing device is characterized by further comprising a crusher (1), an alkaline material bin (3), a feeding device (4), a flour mill (5), a hot air pipe (6), a hot air generator (7) and an alkaline material spray head (9), wherein the discharge port of the crusher (1) is fixedly connected with the feed port of the alkaline material bin (3) through a pipeline (2), the discharge port of the alkaline material bin (3) is fixedly connected with the feed port of the feeding device (4), the discharge port of the feeding device (4) is fixedly connected with the feed port of the flour mill (5), the discharge port of the flour mill (5) is fixedly connected with the hot air pipe (6) through a pipeline (2), one end of the hot air pipe (6) is fixedly connected with the air outlet of the hot air generator (7), a fan (8) is fixedly connected between the hot air generator (7) and the pipeline (2) on the hot air pipe (6), and the other end of the hot air pipe (6) enters, and fixed connection alkaline material shower nozzle (9), on flue (10) and be located the upper and lower both ends of alkaline material shower nozzle (9) fixedly connected with SCR and take off round pin device (11) and air preheater (12) respectively, the flue gas exit fixedly connected with flue gas pressure test probe (14) of SCR taking off round pin device (11) bottom, on flue (10) and be located SCR and take off fixedly connected with flue gas pressure reduction means (13) between round pin device (11) and alkaline material shower nozzle (9), flue gas pressure test probe (14) electric connection flue gas pressure reduction means (13).
2. The alkaline powder abrasive blasting system of claim 1, wherein: the feeding device (4) is a screw feeder.
3. The alkaline powder abrasive blasting system of claim 1, wherein: the fan (8) is a high-temperature fan.
4. The alkaline powder abrasive blasting system of claim 1, wherein: the alkaline material spray head (9) is a grid type spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407540.6U CN211189739U (en) | 2019-08-28 | 2019-08-28 | Alkaline grinding material injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407540.6U CN211189739U (en) | 2019-08-28 | 2019-08-28 | Alkaline grinding material injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211189739U true CN211189739U (en) | 2020-08-07 |
Family
ID=71880868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921407540.6U Active CN211189739U (en) | 2019-08-28 | 2019-08-28 | Alkaline grinding material injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211189739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585898A (en) * | 2019-08-28 | 2019-12-20 | 华电电力科学研究院有限公司 | Alkaline powder grinding material injection system and working method thereof |
-
2019
- 2019-08-28 CN CN201921407540.6U patent/CN211189739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585898A (en) * | 2019-08-28 | 2019-12-20 | 华电电力科学研究院有限公司 | Alkaline powder grinding material injection system and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211189739U (en) | Alkaline grinding material injection system | |
| CN110585898A (en) | Alkaline powder grinding material injection system and working method thereof | |
| CN102531418A (en) | Steel slag grinding production technology and system | |
| CN109985709A (en) | A kind of high-efficiency pulverized coal preparation system | |
| CN107537660A (en) | A kind of sandstone production system of anti-dust | |
| CN203281398U (en) | Feeding device for titanium dioxide steam flow pulverizer | |
| CN208642914U (en) | A kind of high-efficiency pulverized coal preparation system | |
| CN111001291A (en) | Out-of-furnace sodium-based dry desulfurization device and method | |
| CN203333483U (en) | Cement pulverized coal preparation system | |
| CN216236731U (en) | Desulfurization gypsum calcining production line | |
| CN201613153U (en) | Hammer type crusher | |
| CN206980519U (en) | A kind of feed addictive mixing plant with dust pelletizing system | |
| CN203540675U (en) | Agglomeration-free magnesium hydroxide powder producing equipment | |
| CN105001134B (en) | A kind of xanthate preparation system | |
| CN202356168U (en) | Insoluble sulfur freeze-grinding equipment | |
| CN210333278U (en) | Be applied to packing plant of carbon black production | |
| JP6818105B1 (en) | Fuel identification system, control system and solid fuel crusher, and fuel identification method | |
| CN107855177A (en) | A kind of anti-airborne dust talc lump disintegrating machine automatic control system | |
| CN102951450A (en) | High-temperature smoke dust conveying system and high-temperature smoke dust conveying method | |
| CN218664402U (en) | Safe and environment-friendly ash discharging device | |
| CN108444249B (en) | Lignite two-step low-temperature drying method and equipment | |
| JP5143037B2 (en) | Woody biomass supply method to fluidized bed boiler | |
| JP2010175215A (en) | Method and facility for crushing woody biomass for fluidized bed boiler | |
| CN214811557U (en) | Milling system | |
| CN2873308Y (en) | Gas material mixing jet type feeder for gas flow crasher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |