CN212268908U - Can realize dry sludge transfer system of dustproof and purifying effect - Google Patents
Can realize dry sludge transfer system of dustproof and purifying effect Download PDFInfo
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- CN212268908U CN212268908U CN202020848486.5U CN202020848486U CN212268908U CN 212268908 U CN212268908 U CN 212268908U CN 202020848486 U CN202020848486 U CN 202020848486U CN 212268908 U CN212268908 U CN 212268908U
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- 239000010802 sludge Substances 0.000 title claims abstract description 75
- 238000012546 transfer Methods 0.000 title claims abstract description 65
- 230000000694 effects Effects 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000005587 bubbling Effects 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims abstract description 15
- 238000000746 purification Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002781 deodorant agent Substances 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 30
- 238000001035 drying Methods 0.000 description 9
- 238000007664 blowing Methods 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001599 direct drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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- 230000002195 synergetic effect Effects 0.000 description 1
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Abstract
The utility model discloses a dry sludge transfer system capable of realizing the dust-raising prevention and purification effects, which comprises a transfer vehicle, an air outlet pipe, a self-return air pipe, a forced return air pipe, a dust collection fan and a bubbling water tank; the transfer car hopper of the transfer car is connected with a mud outlet of the dry mud bin through a blanking pipe, a U-shaped gas collecting pipe is arranged above the inner portion of the transfer car hopper, a plurality of small air suction holes are formed in the U-shaped gas collecting pipe, the air outlet of the U-shaped gas collecting pipe is connected with an air outlet pipe located outside the transfer car hopper, the outlet of the air outlet pipe is connected with a self-return pipe and a dust collection fan, the outlet of the self-return pipe is connected with the dry mud bin, the outlet of the dust collection fan is connected with a forced return pipe and a gas exhaust pipe, the outlet of the forced return pipe is connected with the dry mud bin, and the gas exhaust pipe is inserted into the bubbling water tank. This transfer system can effectively prevent the raise dust that dry sludge produced in the transfer process and run the mud problem to can realize the purifying effect to the mud dirt tail gas.
Description
Technical Field
The utility model relates to a solid useless processing technology field, in particular to be applied to the dry sludge transfer system who can realize dust-raising prevention and purifying effect that municipal sludge handles.
Background
With the development of urbanization in China, the yield of domestic sludge in cities and towns is gradually increased year by year. The domestic sludge should be subjected to harmless treatment to avoid secondary pollution because the domestic sludge contains various harmful substances, such as malodorous gases, microorganisms, organic matters, certain heavy metals and the like. Compared with treatment methods such as landfill, sea filling, composting and the like, sludge incineration is the most 'thorough' treatment mode. The sludge incineration treatment mode has the following characteristics: 1) the volume and the weight of the sludge can be obviously reduced (the volume reduction reaches more than 90 percent) by burning the sludge, and the reduction is obvious; 2) the organic matters can be completely carbonized, and pathogens are killed; 3) the treatment speed is high, long-term storage is not needed, and the method is particularly suitable for large-scale centralized treatment; 4) the organic matter energy in the sludge can be recovered. Therefore, according to the 'notice about development of coal-fired coupling biomass power generation technology improvement pilot-point work' (national energy power generation [ 2017 ] 75) in China, a cogeneration coal-electric power unit is selected to cooperatively treat sludge. The method can reduce the investment of a separately newly built sludge incineration facility, and can utilize the abundant self-resources of electric power, high-temperature flue gas, steam and the like of the coal-fired power plant, thereby saving the operating cost of sludge treatment.
Because the moisture content of the wet sludge is generally higher than 80%, the direct combustion mode has small treatment amount and is not economical, and drying is needed to be carried out firstly. The water content of the dried sludge is generally reduced to be not more than 40 percent, which is beneficial to self-sustaining incineration of the sludge and heat recovery. Sludge drying is a mechanical drying device which provides latent heat for evaporating water in sludge by supplying supplementary heat. Considering safety factors such as system explosion prevention, the indirect drying mode of the sludge is more applied than the direct drying mode (direct drying is that hot smoke or hot air and other media are directly contacted with the sludge to evaporate moisture in the sludge under the action of high temperature, so that the solid content of the sludge is improved, and dust explosion prevention hidden danger needs to be noticed). The indirect drying of the sludge is to transfer heat to the sludge on the other side by steam or heat conducting oil provided by heating equipment through the surface of a heat transfer element of the drying equipment so as to evaporate water in the sludge. The dried sludge is sent to a dry sludge bin for temporary storage, is transferred to a coal yard at regular time, and is fed into a furnace along with raw coal for blending combustion when in use.
However, the mud in the dry mud storehouse is because the moisture content is low, when falling into the transportation car hopper, the whereabouts and the collision of dry mud can cause a large amount of stinky mud dirt to escape, and mud loading in-process raise dust is great, causes sludge drying workshop dust to scatter about even, and workshop operational environment during unloading mud receives the serious influence of mud dirt, is unfavorable for staff's normal monitoring process of unloading.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a can realize preventing raise dust and purifying effect's dry sludge transfer system, can effectively prevent the raise dust and the running mud problem that dry sludge produced in the transportation to can realize the purifying effect to mud dirt tail gas.
For realizing the above technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme can realize:
a dry sludge transfer system capable of realizing dust raising prevention and purification effects comprises a transfer trolley, an air outlet pipe, a self-return air pipe, a forced return air pipe, a dust collection fan and a bubbling water tank;
the transfer car hopper of the transfer car is connected with a mud outlet of the dry mud bin through a blanking pipe, a U-shaped gas collecting pipe is arranged above the inner portion of the transfer car hopper, a plurality of small air suction holes are formed in the U-shaped gas collecting pipe, the air outlet of the U-shaped gas collecting pipe is connected with an air outlet pipe located outside the transfer car hopper, the outlet of the air outlet pipe is connected with a self-return pipe and a dust collection fan, the outlet of the self-return pipe is connected with the dry mud bin, the outlet of the dust collection fan is connected with a forced return pipe and an exhaust pipe, the outlet of the forced return pipe is connected with the dry mud bin, and the exhaust pipe is inserted into the bubbling water tank.
Furthermore, a vibration feeder is arranged at a sludge outlet of the dry sludge bin to discharge dry sludge in the dry sludge bin into the transfer car hopper.
Furthermore, an electric gate board door is arranged between the mud outlet of the dry mud bin and the inlet of the blanking pipe.
Furthermore, the blanking pipe is a telescopic blanking pipe, so that the height can be adjusted, and the trolley hopper can be conveniently matched with the trolley.
Furthermore, the outlet of the blanking pipe is connected with the inlet of the transfer car hopper in a sealing mode through a silica gel sealing ferrule, so that good sealing performance in the mud dropping process is guaranteed.
Furthermore, the air outlet pipe is also connected with a blowback pipe for introducing compressed air so as to blow and sweep the pipeline by utilizing the compressed air.
Furthermore, a self-return air valve is arranged on the self-return air pipe, a forced return air valve is arranged on the forced return air pipe, and an exhaust valve is arranged on the exhaust pipe so as to control the opening and closing of each pipeline through each valve.
Furthermore, the U-shaped gas collecting pipe is obliquely arranged in the transfer trolley hopper relative to the horizontal plane, so that the deposition of mud and dust in the gas collecting pipe is greatly reduced.
Furthermore, the distance between the small air suction holes arranged on the U-shaped air collecting pipe is unequal, and the number of the small air suction holes is 10-60.
Furthermore, a deodorization liquid is arranged in the bubbling water tank, and the mud-dust tail gas is deodorized.
The utility model has the advantages that: the transfer system discharges dry sludge into a transfer car hopper of a transfer car through a blanking pipe, and keeps micro negative pressure above the transfer car hopper by utilizing the air suction effect of a dust suction fan, so that the escape of mud and dust is controlled, and the dust is prevented from flying; one part of the extracted gas with the mud dust flows back to the dry mud bin through the air return pipe and the forced air return pipe, and the other part enters the bubbling water tank for water washing and purification, so that the problems of mud dust dissipation and mud leakage can be effectively prevented under the condition of ensuring quick mud unloading and loading, and the pollution to the environment can be avoided; the U-shaped gas collecting pipe realizes uniform gas collection through a plurality of small gas suction holes, and the gas collection effect is improved.
This dry sludge transfer system can solve dry sludge blanking to the in-process of transporting car hopper because of the scattered problem of a large amount of mud dusts that the whereabouts caused of dry mud collision, has improved sludge drying workshop raise dust situation, can purify the mud dirt tail gas that the system produced again simultaneously, has created good workshop health environment, has ensured the occupational health of operation personnel. The whole system has reliable structure, is clean and environment-friendly, and is suitable for being used in a synergetic mixed combustion drying sludge coal-fired power plant.
Drawings
Fig. 1 is the utility model relates to a can realize preventing raise dust and purifying effect's dry sludge transfer system's schematic structure.
Fig. 2 is a schematic structural diagram of a U-shaped gas collecting tube in the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Fig. 1 and 2 show a preferred embodiment of a dry sludge transfer system capable of achieving dust-raising prevention and purification effects. The dry sludge transfer system comprises a transfer trolley 1, an air outlet pipe 2, a self-return air pipe 3, a forced return air pipe 4, a dust collection fan 5 and a bubbling water tank 6.
A transfer car hopper 101 of the transfer car 1 is connected with a sludge outlet of a dry sludge bin 17 for storing dry sludge through a telescopic blanking pipe 7, and a U-shaped gas collecting pipe 8 is arranged above the inside of the transfer car hopper 101; as shown in fig. 2, in this embodiment, the U-shaped gas collecting pipe 8 is made of light alloy material, and has a diameter of 40 mm; a plurality of small air suction holes 801 are formed in the U-shaped tube body 802 of the U-shaped air collecting tube 8 at unequal intervals, and the number of the small air suction holes 801 is about 10-60; the air outlet of an air outlet pipe body 803 of the U-shaped air collecting pipe 8 (the air outlet pipe body is connected to the U-shaped pipe body) is connected with an air outlet pipe 2 positioned outside the transfer car hopper, and the outlet of the air outlet pipe 2 is connected with a self-return air pipe 3 and a fan pipe on the dust collection fan 5 through a three-way joint; the outlet of the self-return air pipe 3 is connected with a dry mud bin 17; the outlet of the dust collection fan 5 is connected with the forced air return pipe 4 and the exhaust pipe 9, the outlet of the forced air return pipe 4 is connected with the dry mud bin 17, and the exhaust pipe 9 is inserted into the bubbling water tank 6.
The mud outlet of the dry mud bin 17 is provided with a vibratory feeder 10 to discharge the dry mud in the dry mud bin into the transfer car hopper 101 through the retractable blanking pipe 7 by utilizing a vibratory feeding mode, so that the automation of mud discharging is realized, and the maintenance workload is reduced.
In order to control the opening or closing of the sludge outlet of the dry sludge bin 17, an electric shutter door 11 is arranged between the sludge outlet of the dry sludge bin 17 and the inlet of the telescopic blanking pipe 7.
The blanking pipe adopts a telescopic blanking pipe; this retractable blanking pipe 7 adopts light alloy material to make, and the diameter is 200mm, and is wear-resisting and light in weight, can adjust the height through the elasticity to be adapted to and connect not transport hopper 101 of co-altitude.
The outlet of the telescopic blanking pipe 7 is hermetically connected with the inlet of the transfer car hopper 101 through a silica gel sealing ferrule 12; the height of the silica gel sealing ferrule 12 is 150 mm; this silica gel sealing ring 12 has realized the accurate butt joint between the import of transport car hopper 101 and the export of telescopic blanking pipe 7 to can guarantee the good leakproofness of mud in-process that falls, greatly reduce entire system's the rate of leaking out.
The air outlet pipe 2 is also connected with a blowback pipe 13 for introducing compressed air, and the blowback pipe 13 can also be provided with a blowback valve 18; the compressed air source can be the exhaust air of the dust suction fan 5 or the compressed air source introduced nearby on site; the blowback pipe 13 uses compressed air to blow the pipeline of the system, the blowing time is about 2-5 min, and the problem of dust deposition after long-time use can be solved.
In addition, a self-return air valve 14 is arranged on the self-return air pipe 3, a forced return air valve 15 is arranged on the forced return air pipe 4, and an exhaust valve 16 is arranged on the exhaust pipe 9, so that the system can realize the opening and closing control of each pipeline through each valve.
Furthermore, in the utility model, the U-shaped gas collecting pipe 7 is obliquely arranged in the transfer car hopper 101 relative to the horizontal plane, and the inclination angle is 3-8 degrees; specifically, the air inlet end of the U-shaped gas collecting pipe 7 is lower than the air outlet end thereof; the arrangement of the inclination angle can greatly reduce the deposition rate of the dust in the U-shaped gas collecting pipe 7.
In order to realize better purification effect, deodorizing liquid is arranged in the bubbling water tank 6, and the mud and dust tail gas discharged by the dust collection fan 5 is washed and deodorized.
The working process of the dry sludge transfer system of the embodiment is as follows:
when the transfer trolley works, the transfer trolley 1 moves to the dry mud bin 17, and the telescopic blanking pipe 7 at the mud outlet of the dry mud bin 17 is connected with the inlet of the transfer trolley hopper 101 through the silica gel sealing ferrule 12 arranged on the outlet of the telescopic blanking pipe; then connecting the air outlet of the U-shaped gas collecting pipe 8 in the transfer car hopper 101 with the air outlet pipe 2; other pipelines of the system are already in a connected state; starting the dust absorption fan 5, opening the self-return air valve 14, the forced return air valve 15 and the exhaust valve 16, opening the electric gate plate door 11, and starting the vibration feeder 10; the dry sludge in the dry sludge bin 17 enters the transfer car hopper 101 through the retractable blanking pipe 7 under the vibration action of the vibration feeder 10, and the micro negative pressure (-50Pa to-500 Pa) is kept above the transfer car hopper 101 under the suction action of the dust suction fan 5, so that the escape of the sludge dust is controlled; the pumped gas with the mud and dust enters the air outlet pipe 2 through the U-shaped gas collecting pipe 8, part of the pumped gas flows back to the upper space of the dry mud bin 17 through the air return pipe 3, part of the gas flows back to the upper space of the dry mud bin 17 through the forced air return pipe 4, and part of the gas also enters the bubbling water tank 6 through the exhaust pipe 9, and the mud and dust tail gas is deodorized and washed by using a deodorizing liquid; the exhaust valve 16 can also be closed during normal operation, after the mud discharging is finished, the self-return air valve 14 and the forced return air valve 15 are closed, the exhaust valve 16 is opened again, and the mud dust tail gas is discharged into the bubbling water tank 6 for water washing and deodorization treatment. The gas after water washing and deodorization treatment is dispersed into the atmosphere; the deodorization liquid in the bubbling water tank 6 can be repeatedly used, and can be finally pumped into a slag pool after reaching a certain turbidity degree to be used as slag washing water. After the mud discharging is finished, the back-blowing valve 18 can be opened, compressed air is introduced into the system through the back-blowing pipe 13 for blowing, and the air outlet pipe and the like are cleaned. And after the sludge is discharged, the transfer trolley conveys the dry sludge to a dry sludge coal-fired power plant for use.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a can realize dry sludge transfer system of dustproof and purifying effect which characterized in that: comprises a transfer trolley, an air outlet pipe, a self-return air pipe, a forced return air pipe, a dust collection fan and a bubbling water tank;
the transfer car hopper of the transfer car is connected with a mud outlet of the dry mud bin through a blanking pipe, a U-shaped gas collecting pipe is arranged above the inner portion of the transfer car hopper, a plurality of small air suction holes are formed in the U-shaped gas collecting pipe, the air outlet of the U-shaped gas collecting pipe is connected with an air outlet pipe located outside the transfer car hopper, the outlet of the air outlet pipe is connected with a self-return pipe and a dust collection fan, the outlet of the self-return pipe is connected with the dry mud bin, the outlet of the dust collection fan is connected with a forced return pipe and a gas exhaust pipe, the outlet of the forced return pipe is connected with the dry mud bin, and the gas exhaust pipe is inserted into the bubbling water tank.
2. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: and a sludge outlet of the dry sludge bin is provided with a vibratory feeder to discharge dry sludge in the dry sludge bin into a transfer car hopper.
3. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: an electric flashboard door is arranged between the mud outlet of the dry mud bin and the inlet of the blanking pipe.
4. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the blanking pipe is a telescopic blanking pipe.
5. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the outlet of the blanking pipe is connected with the inlet of the transfer car hopper in a sealing mode through a silica gel sealing ferrule.
6. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the air outlet pipe is also connected with a back flushing pipe for introducing compressed air.
7. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the self-return air pipe is provided with a self-return air valve, the forced return air pipe is provided with a forced return air valve, and the exhaust pipe is provided with an exhaust valve.
8. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the U-shaped gas collecting pipe is obliquely arranged in the transfer trolley hopper relative to the horizontal plane.
9. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: the distance between the small air suction holes arranged on the U-shaped air collecting pipe is unequal, and the number of the small air suction holes is 10-60.
10. The dry sludge transfer system capable of achieving the dust-raising prevention and purification effects according to claim 1, wherein: and deodorant liquid is arranged in the bubbling water tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020848486.5U CN212268908U (en) | 2020-05-20 | 2020-05-20 | Can realize dry sludge transfer system of dustproof and purifying effect |
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| CN202020848486.5U CN212268908U (en) | 2020-05-20 | 2020-05-20 | Can realize dry sludge transfer system of dustproof and purifying effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313719A (en) * | 2022-01-07 | 2022-04-12 | 浙江傲世环境服务有限公司 | An underground garbage transfer station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313719A (en) * | 2022-01-07 | 2022-04-12 | 浙江傲世环境服务有限公司 | An underground garbage transfer station |
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