CN212758020U - Preparation, storage and conveying device for waste incineration flue gas treatment absorbent - Google Patents
Preparation, storage and conveying device for waste incineration flue gas treatment absorbent Download PDFInfo
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- CN212758020U CN212758020U CN202020427163.9U CN202020427163U CN212758020U CN 212758020 U CN212758020 U CN 212758020U CN 202020427163 U CN202020427163 U CN 202020427163U CN 212758020 U CN212758020 U CN 212758020U
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Abstract
The utility model provides a conveyor is stored in absorbent preparation is administered to msw incineration flue gas, structural design is reasonable, succinct, with low costs. The cone hopper is arranged at the bottom of the lime storage bin; the conical hopper is connected with the screw feeder through a pipeline, and the gate valve is arranged on the pipeline; the screw feeder is connected with the preparation box; a stirrer is arranged in the preparation box; the purification device is connected with the preparation box; the exhaust fan is connected with the purification device; the preparation box is connected with the storage box through a transfer pipeline; the inlet of the filtering device is connected with the storage tank, and the outlet of the filtering device is connected with the inlet of the lime slurry delivery pump; the outlet of the lime slurry delivery pump is respectively connected with a delivery pipeline and an adjusting pipeline, the adjusting pipeline is connected with the storage tank, and the adjusting valve is arranged on the adjusting pipeline; the storage tank stirrer is installed in the storage tank.
Description
Technical Field
The utility model relates to a conveyor is stored in absorbent preparation is administered to msw incineration flue gas belongs to the field is administered to the msw incineration flue gas.
Background
With the continuous progress and development of society, the yield of the household garbage is increased rapidly. The treatment of domestic garbage has become a concern all over the country, and the treatment modes of domestic garbage at present comprise landfill, composting and incineration, wherein the landfill and the incineration are the common domestic garbage treatment modes in China. Landfill is a final treatment method of garbage, but the landfill method has large floor area and secondary pollution of leachate to underground water, soil and the like; although the composting technology has low treatment cost, the composting technology has more restriction factors; the incineration is that under the condition of high temperature, the combustible components in the garbage and the oxygen in the air undergo violent chemical reaction, after the domestic garbage is incinerated, the volume can be reduced by about 85-95%, but the incinerated flue gas contains various toxic and harmful substances, such as dust particles and acidic gases (such as HCl and SO)2、NOx)Heavy metals (Hg, Pb, Cd, etc.) and dioxins, furans, etc.
The EU 2000 standard is one of the more stringent requirements currently implemented, for dust, HCl, SO2、NOxThe emission requirements of the dioxin and the dioxin are respectively 10mg/Nm3、10mg/Nm3、50mg/Nm3、200mg/Nm3、0.1ngTEQ/m3(ii) a Domestic garbage incineration pollution control standard for 2014 in ChinaThe requirements of Standard "on dust, HCl and SO2、NOxThe mean value of the 24-hour emission of dioxin is 20mg/Nm3、50mg/Nm3、80mg/Nm3、250mg/Nm3、0.1ngTEQ/m3There is a gap from the eu 2000 standard. Aiming at the current discharge standard in China, the current mainstream pollutant treatment process is SNCR denitration, semi-dry deacidification, activated carbon absorption and cloth bag dust removal. SNCR is mainly used for removing NOx(ii) a The semidry method is mainly used for removing HCl and SO2(ii) a The activated carbon is mainly used for adsorbing dioxin; the bag-type dust collector can remove dioxin, heavy metal and the like while removing dust.
The absorbent used in the semi-dry deacidification process is hydrated lime with the concentration of about 15 percent, lime and water are required to be prepared and stored in proportion, the hydrated lime and the water are conveyed to a spray gun of a semi-dry reaction tower through a pump, and the hydrated lime and the water are sprayed into flue gas through the spray gun to react and absorb HCl and SO2. The device for preparing, storing and conveying the current waste incineration flue gas treatment absorbent has a complex structure and high cost.
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 a conveyor is stored in absorbent preparation is administered to msw incineration flue gas that structural design is reasonable, succinct, with low costs.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a conveyor is stored in preparation of waste incineration flue gas treatment absorbent which characterized in that: comprises an absorbent preparation system and an absorbent storage and conveying system; the absorbent preparation system comprises a lime storage bin and a preparation device, wherein the preparation device comprises a cone hopper, a gate valve, a screw feeder, a preparation box, a purification device, an exhaust fan and a transfer pipeline; the cone hopper is arranged at the bottom of the lime storage bin; the conical hopper is connected with the screw feeder through a pipeline, and the gate valve is arranged on the pipeline; the screw feeder is connected with the preparation box; a stirrer is arranged in the preparation box; the purification device is connected with the preparation box; the exhaust fan is connected with the purification device; the absorbent storage and conveying system comprises a storage tank, a storage tank stirrer, a filtering device, a lime slurry conveying pump, a conveying pipeline, an adjusting pipeline and an adjusting valve; the preparation box is connected with the storage box through a transfer pipeline; the inlet of the filtering device is connected with the storage tank, and the outlet of the filtering device is connected with the inlet of the lime slurry delivery pump; the outlet of the lime slurry delivery pump is respectively connected with a delivery pipeline and an adjusting pipeline, the adjusting pipeline is connected with the storage tank, and the adjusting valve is arranged on the adjusting pipeline; the storage tank stirrer is installed in the storage tank.
Purifier for spray cooling dust removal integral structure.
The preparation device of the utility model is arranged for one use and one standby; the cone buckets comprise a first cone bucket and a second cone bucket; the gate valve comprises a first gate valve and a second gate valve; the screw feeders comprise a first screw feeder and a second screw feeder; the preparation box comprises a first preparation box and a second preparation box; the stirrer comprises a first stirrer and a second stirrer; the purification device comprises a first purification device and a second purification device; the exhaust fan comprises a first exhaust fan and a second exhaust fan; the transfer pipeline includes a first transfer pipeline and a second transfer pipeline.
Lime thick liquid delivery pump for one with one and prepare the setting, its pump case, impeller material adopt Cr 30.
Lime storage storehouse, preparation case and bin all adopt carbon steel material.
The blades and the shafts of the first stirrer, the second stirrer and the storage box stirrer are all made of 304 stainless steel.
Lime storage storehouse, awl fill, push-pull valve, screw feeder, preparation case, bin top-down set gradually.
Compared with the prior art, the utility model, have following advantage and effect:
(1) the arrangement is reasonable, the whole device is respectively provided with a lime storage bin, a preparation box and a storage box from top to bottom according to the process operation requirement, and the occupied area is small;
(2) the system is simple in configuration and low in cost, and can meet the requirement of system fine preparation and conveying to the maximum extent;
(3) the system reliability is higher, and important equipment all adopts one to use one and is equipped with.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
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, embodiments of the present invention include an absorbent preparation system and an absorbent storage and delivery system.
The absorbent preparation system comprises a lime storage bin 1.1 and a preparation device, wherein the preparation device comprises a cone hopper, a gate valve, a screw feeder, a preparation box, a purification device, an exhaust fan and a transfer pipeline.
The cone hopper is arranged at the bottom of the lime storage bin. The cone hopper is connected with the screw feeder through a pipeline, and the gate valve is installed on the pipeline. The screw feeder is connected with the preparation box. The preparation tank is provided with a stirrer. Purifier is connected with the preparation case, and purifier is for spraying cooling dust removal integral structure. The exhaust fan is connected with the purification device.
The preparation device is arranged for one use and one preparation. The cone comprises a first cone 1.2 and a second cone 1.5. The gate valve includes first gate valve 1.3 and second gate valve 1.6. The screw feeders comprise a first screw feeder 1.4 and a second screw feeder 1.7. The preparation tank comprises a first preparation tank 2.1 and a second preparation tank 2.6. The first screw feeder 1.4 and the second screw feeder 1.7 are variable frequency motors and have a weighing function. The stirrers comprise a first stirrer 2.2 and a second stirrer 2.7. The purification device comprises a first purification device 2.3 and a second purification device 2.8. The suction fan comprises a first suction fan 2.4 and a second suction fan 2.9. The transfer lines comprise a first transfer line 2.5 and a second transfer line 2.10.
The absorbent storage and delivery system comprises a storage tank 3.1, a storage tank stirrer 3.2, a filtering device 3.3, a lime slurry delivery pump 3.4, a delivery pipeline 3.5, an adjusting pipeline 3.6 and an adjusting valve 3.7.
Storage tank 3.1 is located the preparation case below, and the preparation case passes through and forwards the pipeline and is connected with storage tank 3.1, and first preparation case 2.1 and storage tank 3.1 are connected to first transfer pipeline 2.5, and second preparation case 2.6 and storage tank 3.1 are connected to the second transfer pipeline 2.10.
The inlet of the filter device 3.3 is connected with the storage tank 3.1, and the outlet is connected with the inlet of the lime slurry delivery pump 3.4. The outlet of the lime slurry delivery pump 3.4 is respectively connected with a delivery pipeline 3.5 and an adjusting pipeline 3.6, the adjusting pipeline 3.6 is connected with a storage tank 3.1, and an adjusting valve 3.7 is arranged on the adjusting pipeline 3.6. The lime slurry delivery pump 3.4 is arranged for one use and one spare use, and the material of a pump shell and an impeller is Cr 30. A storage tank stirrer 3.2 is mounted in the storage tank 3.1.
The lime storage bin, the cone hopper, the gate valve, the screw feeder, the preparation box and the storage box are sequentially arranged from top to bottom 3.1.
The lime storage bin 1.1, the preparation box and the storage box 3.1 are all made of carbon steel.
The blades and shafts of the first stirrer 2.2, the second stirrer 2.7 and the storage tank stirrer 3.2 are all 304 stainless steel.
The utility model discloses the operation process as follows:
lime is transported and stored to a lime storage bin 1.1 through a tank truck, when slaked lime is prepared, a certain amount of water is added into a preparation box, a stirrer and a screw feeder are started, a gate valve is opened, lime powder falls into the screw feeder through a cone hopper, the frequency is adjusted, the amount of the added lime powder is set, when the amount of the added lime powder reaches a set value, the gate valve is closed, and the lime powder is closed after the conveying of residual materials in the screw feeder is finished.
The dissolution of lime is an exothermic reaction, and lime powder and water are fully mixed and reacted by stirring of a stirrer to generate hydrated lime, namely calcium hydroxide. A large amount of high-temperature gas released in the dissolving process and dispersed lime powder in blanking are sprayed, cooled and dedusted through a purifying device and then are extracted by an exhaust fan. After the preparation of the hydrated lime with the concentration of 15 percent is finished, the hydrated lime automatically flows into a storage tank 3.1 positioned on the bottom ground through a transfer pipeline, and after the transfer is finished, the whole pipeline is washed.
One lime slurry delivery pump works for 3.4, and the other lime slurry delivery pump is standby. After being filtered by the filter device 3.3, the slaked lime is conveyed to a spray gun of the semi-dry process reaction tower through a conveying pipeline 3.5, a part of the slaked lime flows back to the storage tank 3.1 through an adjusting pipeline 3.6 according to the demand of the reaction tower, and the adjusting valve 3.7 is used for adjusting the pressure of the conveying pipeline 3.5 so as to ensure that the slaked lime at the spray gun has enough spraying strength.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a conveyor is stored in preparation of waste incineration flue gas treatment absorbent which characterized in that: comprises an absorbent preparation system and an absorbent storage and conveying system; the absorbent preparation system comprises a lime storage bin and a preparation device, wherein the preparation device comprises a cone hopper, a gate valve, a screw feeder, a preparation box, a purification device, an exhaust fan and a transfer pipeline; the cone hopper is arranged at the bottom of the lime storage bin; the conical hopper is connected with the screw feeder through a pipeline, and the gate valve is arranged on the pipeline; the screw feeder is connected with the preparation box; a stirrer is arranged in the preparation box; the purification device is connected with the preparation box; the exhaust fan is connected with the purification device; the absorbent storage and conveying system comprises a storage tank, a storage tank stirrer, a filtering device, a lime slurry conveying pump, a conveying pipeline, an adjusting pipeline and an adjusting valve; the preparation box is connected with the storage box through a transfer pipeline; the inlet of the filtering device is connected with the storage tank, and the outlet of the filtering device is connected with the inlet of the lime slurry delivery pump; the outlet of the lime slurry delivery pump is respectively connected with a delivery pipeline and an adjusting pipeline, the adjusting pipeline is connected with the storage tank, and the adjusting valve is arranged on the adjusting pipeline; the storage tank stirrer is installed in the storage tank.
2. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 1, characterized in that: the purification device is of a spraying, cooling and dedusting integrated structure.
3. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 1, characterized in that: the preparation device is arranged for one use and one preparation; the cone buckets comprise a first cone bucket and a second cone bucket; the gate valve comprises a first gate valve and a second gate valve; the screw feeders comprise a first screw feeder and a second screw feeder; the preparation box comprises a first preparation box and a second preparation box; the stirrer comprises a first stirrer and a second stirrer; the purification device comprises a first purification device and a second purification device; the exhaust fan comprises a first exhaust fan and a second exhaust fan; the transfer pipeline includes a first transfer pipeline and a second transfer pipeline.
4. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 1, characterized in that: the lime slurry delivery pump is arranged for one use and one spare, and the material of a pump shell and an impeller of the lime slurry delivery pump is Cr 30.
5. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 1, characterized in that: the lime storage bin, the preparation box and the storage box are all made of carbon steel.
6. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 3, characterized in that: the blades and the shafts of the first stirrer, the second stirrer and the storage tank stirrer are all made of 304 stainless steel.
7. The waste incineration flue gas treatment absorbent preparation storage conveying device of claim 1, characterized in that: the lime storage bin, the conical hopper, the gate valve, the screw feeder, the preparation box and the storage box are sequentially arranged from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020427163.9U CN212758020U (en) | 2020-03-30 | 2020-03-30 | Preparation, storage and conveying device for waste incineration flue gas treatment absorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020427163.9U CN212758020U (en) | 2020-03-30 | 2020-03-30 | Preparation, storage and conveying device for waste incineration flue gas treatment absorbent |
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| Publication Number | Publication Date |
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| CN212758020U true CN212758020U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020427163.9U Active CN212758020U (en) | 2020-03-30 | 2020-03-30 | Preparation, storage and conveying device for waste incineration flue gas treatment absorbent |
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| CN (1) | CN212758020U (en) |
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- 2020-03-30 CN CN202020427163.9U patent/CN212758020U/en active Active
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