CN207107505U - A kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent - Google Patents
A kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent Download PDFInfo
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- CN207107505U CN207107505U CN201720843794.7U CN201720843794U CN207107505U CN 207107505 U CN207107505 U CN 207107505U CN 201720843794 U CN201720843794 U CN 201720843794U CN 207107505 U CN207107505 U CN 207107505U
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- kiln ash
- ash silo
- kiln
- desulfurizing agent
- cement
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Abstract
The utility model discloses a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent, include kiln ash silo, it is connected to the kiln ash inlet duct on kiln ash silo top, it is connected to the kiln ash outlet conduit of kiln ash silo bottom, the roof scrubber being connected at the top of kiln ash silo, and star-shaped feeding machine and weighing spiral feeder；The defeated grey plank road of the defeated grey plank road in scrapper conveyor end or dust-precipitator reamer end is connected by kiln ash inlet duct with kiln ash silo；Kiln ash silo bottom is bucket shape structure, is provided with the side wall of kiln ash silo bottom and the tank connected fluidized plate of compressed air；The outlet of kiln ash outlet conduit is connected by the import of star-shaped feeding machine and weighing spiral feeder.The utility model carries out recovery to caused kiln ash on cement producing line and is used as SO in cement kiln production line flue gas2Desulfurizing agent, without outsourcing lime stone carry out wet process of FGD, so as to reduce the processing cost of cement.
Description
Technical field
Cement flue Dust recovery and reuse technology field is the utility model is related to, specifically a kind of cement flue Dust production desulfurizing agent
Pretreatment feed conveying device.
Background technology
Because the coal quality that each cement kiln production line uses is unstable, sulfur content in coal fluctuation is big, makes domestic each cement kiln
SO in production line flue gas2Initial concentration differs greatly,《Airborne Pollutants from Cement Plant discharge standard》(GB4915-2013) will in
Seek kiln exit gas SO2Concentration of emission is less than 100mg/m3, for SO in partial fume2The larger cement kiln production of initial concentration
Line using Wet Flue Gas Desulfurization Technology, it is necessary to reduce the SO in flue gas2Concentration.Wet Flue Gas Desulfurization Technology master in the market
Using lime stone, lime stone main source is market purchasing, so can add clinker per ton as desulfurizing agent
Processing cost.
Utility model content
It is defeated that the technical problems to be solved in the utility model is to provide a kind of pretreatment charging of cement flue Dust production desulfurizing agent
Device is sent, recovery is carried out to caused kiln ash on cement producing line and is used as SO in cement kiln production line flue gas2Desulfurizing agent, without
Outsourcing lime stone carries out wet process of FGD, so as to reduce the processing cost of cement.
The technical solution of the utility model is：
A kind of pretreatment feed conveying device technique of cement flue Dust production desulfurizing agent, includes kiln ash silo, is connected to kiln
The kiln ash inlet duct on ash silo top, it is connected to the kiln ash outlet conduit of kiln ash silo bottom, the silo roof being connected at the top of kiln ash silo
Deduster, and star-shaped feeding machine and weighing spiral feeder；The defeated grey plank road in scrapper conveyor end or dust-precipitator reamer end are defeated
Grey plank road is connected by kiln ash inlet duct with kiln ash silo；Described kiln ash silo bottom is bucket shape structure, the side of kiln ash silo bottom
It is provided with wall and the tank connected fluidized plate of compressed air；Inlet valve, described kiln are provided with described kiln ash inlet duct
Outlet valve is provided with grey outlet conduit, the outlet of described kiln ash outlet conduit and the import of star-shaped feeding machine connect, star-like
The outlet of batcher and the import of weighing spiral feeder connect.
Described kiln ash silo top is provided with the level-sensing device extending into inside kiln ash silo.
Described kiln ash silo top is provided with vacuum release valve.
Described inlet valve selects normally closed butterfly valve；Described outlet valve selects hand operated gate valve.
Four pieces of fluidized plates, even circumferential of four pieces of fluidized plates along kiln ash silo are provided with the side wall of described kiln ash silo bottom
Distribution.
Described compressed air cylinder is connected by compressed air piping with fluidized plate, the air accumulator of described roof scrubber
It is connected by compressed air piping with compressed air cylinder, manual ball valve is provided with two compressed air pipings.
Principle of the present utility model：
The composition that can be used as desulfurizing agent of cement producing line kiln ash has CaCO3And CaO.Using CaCO3It is wet method cigarette with CaO
The key reaction equation of the desulfurizing agent of desulfurization technology is as follows：
CaCO3+1/2H2O+SO2→CaSO3·1/2H2O+CO2(1),
CaCO3+1/2H2O+SO2+1/2O2→CaSO4·2H2O+CO2(2),
CaO+SO2→CaSO3(3),
CaO+2H2O+SO2+1/2O2→CaSO4·2H2O (4)
The flue gas desulfurization of cement kiln production line is mainly carried out by reaction (2) and (4).
The advantages of the utility model：
The utility model sets roof scrubber the kiln ash and gas that pipeline is come can be carried out into gas at the top of kiln ash silo
Gu separation, it is easy to the recovery of kiln ash；The utility model is provided with fluidized plate, and compressed air blasts kiln ash silo bottom by fluidized plate
Portion, prevent kiln ash is tied in bottom from encircleing；The utility model kiln ash silo recovery kiln ash successively through star-shaped feeding machine and spiral weigh to
Material machine enters the preparation that lime slurry preparation tank carries out desulfurizing agent, and uniform discharge simultaneously measures, so as to quick and precisely by cement flue Dust
Reclaim and realize the making of desulfurizing agent；The utility model is provided with level-sensing device, when the material position of kiln ash silo is less than setting material position, beats
The recovery that inlet valve carries out kiln ash is opened, ensures the smooth production of whole process units；Vacuum release valve of the present utility model is filling
When gas, exhaust and abnormal temperature change, warehouse is protected not influenceed by the malleation and negative pressure of excess.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
See Fig. 1, a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent, it is 30m to include dischargeable capacity3
Kiln ash silo 1, be connected to the kiln ash inlet duct 2 on the top of kiln ash silo 1, be connected to the kiln ash outlet conduit 3 of the bottom of kiln ash silo 1,
It is connected to the roof scrubber 4 at the top of kiln ash silo 1, and star-shaped feeding machine 11 and weighing spiral feeder 12；Scrapper conveyor end
The defeated grey plank road of defeated grey plank road or dust-precipitator reamer end is connected by kiln ash inlet duct 2 with kiln ash silo 1；Kiln ash silo top is set
It is equipped with vacuum release valve 5 and the level-sensing device 6 extending into inside kiln ash silo 1, the bottom of kiln ash silo 1 is bucket shape structure, the bottom of kiln ash silo 1
Side wall on be provided with four pieces of fluidized plates 7 being connected with compressed air cylinder 8, four pieces of fluidized plates 7 even circumferential along kiln ash silo 1 point
Cloth, the size of every piece of fluidized plate 7 is 300X150, air quantity 0.17m3/min；Normally closed butterfly valve is provided with kiln ash inlet duct 2
9, being provided with specification on kiln ash outlet conduit 3 isHand operated gate valve 10, the outlet of kiln ash outlet conduit 3 with it is star-like
The import connection of batcher 11, the outlet of star-shaped feeding machine 11 is connected with the import of weighing spiral feeder 12；Wherein, it is star-like to give
The flow of material machine 11 is 1m3/ h, the conveying capacity of weighing spiral feeder is 1m3/ h, fed distance 4m.
Wherein, compressed air cylinder 8 is connected by compressed air piping 13 with fluidized plate 7, and the air accumulator of roof scrubber 4 leads to
The compressed air cylinder 8 of overcompression air duct 13 is connected, and manual ball valve 14 is provided with two compressed air pipings 13.
Operation principle of the present utility model：
Inventory in storehouse is measured by level-sensing device 6, and level-sensing device 6 has middle control display, and central control display screen is shown in material
Measure for less than 30% when, manually opened normally closed butterfly valve 9, kiln ash enters kiln ash silo 1 by kiln ash inlet duct 2 and carries out gas solid separation,
Kiln ash enters through kiln ash outlet conduit 3, star-shaped feeding machine 11 and weighing spiral feeder 12 into lime slurry preparation tank successively again
The production of row desulfurizing agent.
Embodiment：
The present embodiment is the production technology that a set of desulfurizing agent is set up for 2000t/d cement clinker production lines.2000t/d line kilns
Exit gas initial parameter is as follows：
Major design index is as follows：
In SP stove sampling analyses, CaCO3Contain 1.45% containing 70.98%, CaO：
Calculated according to data above, be actually needed CaCO3Amount be 850.98kg/h, CaO amount is 17.38kg/h, folding
It is 1198.9kg/h to be counted as kiln ash dosage, i.e., is 1198.9kg/h into the kiln ash dosage of lime slurry preparation tank 13.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
- A kind of 1. pretreatment feed conveying device of cement flue Dust production desulfurizing agent, it is characterised in that：Include kiln ash silo, connect Kiln ash inlet duct in kiln ash silo top, the kiln ash outlet conduit of kiln ash silo bottom is connected to, is connected at the top of kiln ash silo Roof scrubber, and star-shaped feeding machine and weighing spiral feeder；The defeated grey plank road in scrapper conveyor end or dust-precipitator reamer end Defeated grey plank road is held to be connected by kiln ash inlet duct with kiln ash silo；Described kiln ash silo bottom is bucket shape structure, kiln ash silo bottom Side wall on be provided with and the tank connected fluidized plate of compressed air；Inlet valve is provided with described kiln ash inlet duct, it is described Kiln ash outlet conduit on be provided with outlet valve, the outlet of described kiln ash outlet conduit and the import of star-shaped feeding machine connect, The outlet of star-shaped feeding machine and the import of weighing spiral feeder connect.
- 2. a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent according to claim 1, its feature exist In：Described kiln ash silo top is provided with the level-sensing device extending into inside kiln ash silo.
- 3. a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent according to claim 1, its feature exist In：Described kiln ash silo top is provided with vacuum release valve.
- 4. a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent according to claim 1, its feature exist In：Described inlet valve selects normally closed butterfly valve；Described outlet valve selects hand operated gate valve.
- 5. a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent according to claim 1, its feature exist In：Four pieces of fluidized plates, even circumferential distribution of four pieces of fluidized plates along kiln ash silo are provided with the side wall of described kiln ash silo bottom.
- 6. a kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent according to claim 1, its feature exist In：Described compressed air cylinder is connected by compressed air piping with fluidized plate, and the air accumulator of described roof scrubber passes through Compressed air piping is connected with compressed air cylinder, and manual ball valve is provided with two compressed air pipings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843794.7U CN207107505U (en) | 2017-07-12 | 2017-07-12 | A kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843794.7U CN207107505U (en) | 2017-07-12 | 2017-07-12 | A kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent |
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| Publication Number | Publication Date |
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| CN207107505U true CN207107505U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720843794.7U Expired - Fee Related CN207107505U (en) | 2017-07-12 | 2017-07-12 | A kind of pretreatment feed conveying device of cement flue Dust production desulfurizing agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215587A (en) * | 2017-07-12 | 2017-09-29 | 合肥中亚环保科技有限公司 | A kind of cement flue Dust produces the pretreatment feed conveying device of desulfurizing agent |
-
2017
- 2017-07-12 CN CN201720843794.7U patent/CN207107505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215587A (en) * | 2017-07-12 | 2017-09-29 | 合肥中亚环保科技有限公司 | A kind of cement flue Dust produces the pretreatment feed conveying device of desulfurizing agent |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20210712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |