CN203140404U - Negative pressure deodorizing system for sludge drying workshop - Google Patents
Negative pressure deodorizing system for sludge drying workshop Download PDFInfo
- Publication number
- CN203140404U CN203140404U CN 201320078926 CN201320078926U CN203140404U CN 203140404 U CN203140404 U CN 203140404U CN 201320078926 CN201320078926 CN 201320078926 CN 201320078926 U CN201320078926 U CN 201320078926U CN 203140404 U CN203140404 U CN 203140404U
- Authority
- CN
- China
- Prior art keywords
- air
- workshop
- sludge drying
- negative pressure
- inducing pipeline
- 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.)
- Expired - Fee Related
Links
- 238000001035 drying Methods 0.000 title claims abstract description 41
- 239000010802 sludge Substances 0.000 title claims abstract description 39
- 230000001877 deodorizing effect Effects 0.000 title abstract description 8
- 230000001939 inductive effect Effects 0.000 claims abstract description 29
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 5
- 230000023556 desulfurization Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010410 dusting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to the technical field of waste gas treatment, in particular to a negative pressure deodorizing system for a sludge drying workshop. The negative pressure deodorizing system solves the odor treatment problem of the sludge drying workshop and is characterized in that an air inducing pipeline is arranged in the upper side of the workshop generating odor, a plurality of air vents are machined in the air inducing pipeline, air induced fans are arranged at the positions of the air vents, odor is transmitted to the hearth of a boiler through the air inducing pipeline, and a desulfurization and de-dusting device is arranged at the tail of the boiler. Existing equipment and structures are sufficiently utilized according to the site layout, the infrastructure cost is greatly reduced, the structure is simple, the whole system is easy to operate, the treatment effect is good, and the maintenance cost is low.
Description
Technical field
The utility model relates to a kind of technical field of waste gas treatment, particularly the negative pressure deodoration system in a kind of sludge drying workshop.
Background technology
The handling problem of foul smell is seldom considered in China sludge treatment field when construction, in disposing sludge protection environment, how handling foul smell has become one of problem of being badly in need of solution.The intensity of foul smell is considered to weigh the yardstick of its extent of injury, generally is divided into six grades, namely from the zero level of odorless to huge smelly Pyatyi, the foul smell main component of sludge incineration factory is hydrogen sulfide, also have a spot of ammonia, odor strength is three grades, belongs to the smell that easily feels.
Main deodorizing method can be divided into three kinds at present: physics method, chemical method, bioanalysis.The physics method can be divided into Sealing Method again, dilutes diffusion method, covers method, physisorphtion; Chemical method can be divided into again: firing method, chemiadsorption, oxidizing process, wet washing, liquid absorption method; Bioanalysis comprises that soil deodorization method, compost deodorization method, biological filter process, bio-trickling filter method, aeration make, biological washer.A kind of deodoring and disinfecting device and method of foul gas is provided for CN101632899A as patent publication No., this cover treating apparatus mainly comprises the negative pressure gathering-device, biological deodorizing device and bactericidal unit, method is the foul gas collection that the negative pressure gathering-device will produce the source in this covering device, again through biological deodorization tank from bottom to top the multilayer filler and on microorganism absorption, absorb, degradation, make it to be decomposed into the odorless material, finally by microbial aerosol in bactericidal unit medium ultraviolet lamp and the photocatalyst filtering net synergy deactivation gas, the clean health gas of discharging odorless sterile.And for example patent publication No. is that CN101020130A is the biological deodorizing device in the waste gas cleaning system, it is characterized in that waste gas contacting by adsorbed in the cascade filtration device that is combined into the series connection form and fixing and live moisture on carrier surface and microorganism, top at the cascade filtration device, one group of spray watering device respectively is set, water spray is to adopt quantitatively and continuously, regularly and the mode of being interrupted, waste gas is implemented spray handle.
Except Sealing Method and coverage method, additive method all needs with air intake device foul smell to be put together and then handles in these methods.Because the method for covering is come mask malodors by spraying masking agent, because that stench concentration and atmospheric conditions often change the masking agent odor removal efficient is unreliable, be applicable to immediately, the occasion of temporary transient elimination low concentration foul gas, be not suitable for long-term use.The required condition of remaining method differs, and quality is respectively arranged.
Summary of the invention
The purpose of this utility model is to handle problems for the foul smell that solves the sludge drying workshop, provide a kind of reasonable in design, receive the negative pressure deodoration system in the sludge drying workshop of burning in the generating incinerator after concentrated foul smell, need not to build as other structures or complex device such as packed column, biofilters, simplify technology, reduced construction cost and operation cost.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the negative pressure deodoration system in a kind of sludge drying workshop, it is characterized in that arranging the air inducing pipeline and opening some air ports at the workshop upper area that produces foul smell, be provided with air-introduced machine at the position, air port, to boiler furnace, boiler tail is provided with desulfurization, dust arrester to foul smell by the air inducing pipeline.Utilize the air-introduced machine air draught, form low-pressure area at tuyere position, make foul smell run to low-pressure area from the higher-pressure region, guide in the boiler by the air inducing pipeline and to burn, foul smell is introduced behind the boiler furnace scope internal combustion at 850～950 ℃, be converted into the portion gas of sulfur dioxide, through qualified discharge after boiler tail desulfurization, the dedusting.The quantity of inlet scoop is set by the foul smell amount that each workshop produces, and more as the foul smell that wets the mud storage pool, produce when the drying zone filter press squeezes, these regional inlet scoops are more, gives birth to regional air inducing pipeline at these foul smell fecund and also presses foul smell amount increase caliber; Foul smell after this method is collected burns at boiler furnace, and the heat that both can utilize burning to produce is used for generating, can disappear again to get stink to employee's injury and to the pollution of environment.
As preferably, described sludge drying workshop is provided with batch house, wet mud storage pool, pretreating zone, drying zone, dewatered sludge storehouse.The sludge drying workshop generally is provided with zones such as batch house, wet mud storage pool, pretreating zone, drying zone, dewatered sludge storehouse, office room, produce the main region of foul smell in wet mud storage pool, pretreating zone, drying zone and post processing zone, above these zones, arrange the air-introduced machine inlet scoop.
As preferably, described boiler and generator are suitable.Foul smell is guided into by the air inducing pipeline and is burned in the boiler as generating heat energy, joins suitable generator earlier by the heat energy that boiler produces.
As preferably, natural air inlet is adopted in described workshop, and air-introduced machine is the booster-type air-introduced machine, and the primary air fan of air inducing pipeline and some boilers all links, and air inducing pipeline and primary air fan place, some places are provided with the air door electric controller respectively.Natural air inlet is adopted in the workshop, mechanical exhaust, and the natural air inlet mouth is provided with the shutter of the moving wind direction of single current, prevents that the gas in the workshop is excessive; The air inducing pipeline that foul smell is inhaled in each workshop is combined into together at last, the primary air fan of suction foul smell air inducing pipeline and many boilers all links and switches arbitrarily by the air door electric controller, can guarantee still that when one or more boiler maintenance the burning boiler of foul smell being introduced operation burns.
As preferably, described id-motor is provided with frequency converter.Air-introduced machine is regulated air quantity, blast according to workshop, air inducing pipeline air pressure, foul smell is caused the primary air fan porch be slight positive pressure state, and slight positive pressure state has guaranteed that the foul smell in the air inducing pipeline does not reflux.
As preferably, be respectively equipped with the hydrogen sulfide gas checkout gear at some places in described mummification workshop, the air inducing pipeline, ammonia checkout gear, air quantity, blast Displaying Meter.Native system adopts the mode of multiple spot detection, data acquisition, and data such as the foul smell amount in the air inducing pipeline of workshop, air pressure are compiled, and each electrical installation is made the selection of numerical values recited such as power output, opening by computer system.
As preferably, the Electronic Control of described air-introduced machine frequency converter, air door electric controller, primary air fan entrance and the detection data of each test point relevant parameter all insert DCS control system in the sludge drying system.The DCS control system is scattered control system, it is the comprehensive system that computer technology, system's control technology, network communications technology and multimedia technology combine, window close friend's man-machine interface and powerful communication function can be provided, and are the equipment of complete process control, process management.
The beneficial effects of the utility model are: can take full advantage of existing equipment and structures by field layout, reduce the capital construction cost greatly, simple in structure, whole system is easy to operate, and treatment effect is good, and maintenance cost is low.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Among the figure: 1. batch house, 2. wet mud storage pool, 3. first single deflection grille, 4. first drying zone, 5. second single deflection grille is 6. visited the Room, 7. the 3rd single deflection grille, 8. second drying zone, 9. dewatered sludge storehouse, 10. office, 11. air inducing pipeline, 12. the foul smell outlet, 13. supercharging air-introduced machines, 14. pretreating zones.
The specific embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
The negative pressure deodoration system in a kind of sludge drying of present embodiment workshop, the layout in its sludge drying workshop as shown in Figure 1, the negative pressure deodorizing method launch to be implemented by layout, is divided into five from West to East and strides (by the geographic criteria direction), and first strides and be batch house 1, second strides north, and half is wet mud storage pool 2, in the south half be that pretreating zone 14, the three strides be that first drying zone 4, the four strides be the visit Room 6, the 5th strides north, and half is second drying zone 8, and half is dewatered sludge storehouse 9 and office compartment 10 for the south.
The main region that produces foul smell is wet mud storage pool 2, pretreating zone 14, two drying zones and dewatered sludge storehouse 9.Air inducing pipeline 11 is positioned at the top, house to begin to arrange, offer 12 first single deflection grilles 3 at the main wet mud storage pool 2 that produces the foul smell position, first drying zone 4 is offered 11 second single deflection grilles 5, offers 13 the 3rd single deflection grilles 7 in second drying zone 8, dewatered sludge storehouse 9 and office 10 zones.
Wherein, first single deflection grille 3 can be taken out the foul smell of dry mud storage pool 2 and pretreating zone 14 generations, and each hour extracted six times; The foul smell that the air port of first drying zone 4 produces in the time of can taking out foul smell that the dewatered sludge on the conveyer belt produces and the squeezing of first drying zone, 4 filter presses; The foul smell that second drying zone 8 produces in the time of can taking out dewatered sludge produces on dewatered sludge storehouse 9 and the conveyer belt foul smell and the squeezing of this drying zone filter press; The air draught of first drying zone 4 and second drying zone 8 is per hour extracted twice.Air inducing pipeline 11 air ports between dewatered sludge storehouse 9 and the office compartment 10 are established 2, per hour also extract twice, can take out the foul smell that dewatered sludge storehouse 9 produces, and keep the air quality in office 10 zones.Respectively build a stifled wall of being made by fiberglass in addition on visit 6 both sides, the Room, keep apart the foul smell that the both sides dewatered sludge produces.
Plant area adopts natural air inlet, and mechanical exhaust is drawn to foul smell outlet 12 with foul smell by air inducing pipeline 11 by supercharging air-introduced machine 14, is connected to the primary air fan porch of power plant burning boiler then.If burning boiler is 6, supercharging air-introduced machine 14 nominal air deliveries are 120000m
3/ h, blast are 2200Pa, and the motor of supercharging air-introduced machine 14 adopts frequency converter, can regulate air quantity, blast according to air inducing pipeline 11 and each foul smell collecting region real data, are slight positive pressure state to primary air fan porch air inducing pipeline 11.The primary air fan of each regional air inducing pipeline 11 and 6 boilers all links, and switches arbitrarily by the air door electric controller, can guarantee still that when one or more boiler maintenance the boiler of foul smell being introduced operation burns, and establishes the minimum 69520m of being of 6 primary air fan air quantity
3/ h, minimum blast are 13870Pa; Air quantity is 94100m to the maximum
3/ h, blast is 17760Pa to the maximum.Then have any two boilers to move simultaneously, air quantity can satisfy except the foul smell requirement.
In the whole system, the detection data of the Electronic Control of air-introduced machine variable frequency adjustment, import and export air door, primary air fan entrance etc. and each test point relevant parameter all insert sludge drying system DCS control system.Be respectively equipped with the hydrogen sulfide gas test point at some places in whole mummification workshop, the air inducing pipeline, the ammonia test point, air quantity, blast Displaying Meter, the data that detect all are uploaded to DCS control room computer background, the operations staff can in time adjust air quantity according to concentration, thereby blast is adjusted air exchanging rate and time, 850～950 ℃ temperature range internal combustion, is converted into sulfur dioxide behind the foul smell introducing boiler furnace, through qualified discharge after boiler tail desulfurization, the dedusting, reach the purpose of deodorizing.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any structure after the simple transformation of the present utility model is all belonged to protection domain of the present utility model.
Claims (7)
1. the negative pressure deodoration system in a sludge drying workshop, it is characterized in that arranging the air inducing pipeline and opening some air ports at the workshop upper area that produces foul smell, be provided with air-introduced machine at the position, air port, to boiler furnace, boiler tail is provided with desulfurization, dust arrester to foul smell by the air inducing pipeline.
2. the negative pressure deodoration system in sludge drying according to claim 1 workshop is characterized in that the sludge drying workshop is provided with batch house (1), wet mud storage pool (2), pretreating zone (14), drying zone, dewatered sludge storehouse (9).
3. the negative pressure deodoration system in sludge drying according to claim 1 and 2 workshop is characterized in that described boiler and generator are suitable.
4. the negative pressure deodoration system in sludge drying according to claim 1 workshop, it is characterized in that workshop employing natural air inlet, air-introduced machine is the booster-type air-introduced machine, the primary air fan of air inducing pipeline and some boilers all links, and air inducing pipeline and primary air fan place, some places are provided with the air door electric controller respectively.
5. the negative pressure deodoration system in sludge drying according to claim 4 workshop is characterized in that described id-motor is provided with frequency converter.
6. the negative pressure deodoration system in sludge drying according to claim 5 workshop is characterized in that being respectively equipped with in mummification workshop, the air inducing pipeline hydrogen sulfide gas checkout gear at some places, ammonia checkout gear, air quantity, blast Displaying Meter.
7. the negative pressure deodoration system in sludge drying according to claim 6 workshop is characterized in that the Electronic Control of air-introduced machine frequency converter, air door electric controller, primary air fan entrance and the detection data of each test point relevant parameter all insert DCS control system in the sludge drying system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078926 CN203140404U (en) | 2013-02-20 | 2013-02-20 | Negative pressure deodorizing system for sludge drying workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078926 CN203140404U (en) | 2013-02-20 | 2013-02-20 | Negative pressure deodorizing system for sludge drying workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140404U true CN203140404U (en) | 2013-08-21 |
Family
ID=48967960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078926 Expired - Fee Related CN203140404U (en) | 2013-02-20 | 2013-02-20 | Negative pressure deodorizing system for sludge drying workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140404U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157039A (en) * | 2015-08-24 | 2015-12-16 | 南通天蓝环保能源成套设备有限公司 | Sludge and household garbage co-treatment system |
| CN105967488A (en) * | 2016-06-21 | 2016-09-28 | 普利资环境科技（苏州）有限公司 | Sludge drying treatment system with deodorization function |
| CN109734282A (en) * | 2019-02-22 | 2019-05-10 | 广州市思高特环保设备有限公司 | Sludge dehumidifying desiccation machine and sludge dehumidifying anhydration system |
| CN109838796A (en) * | 2019-03-21 | 2019-06-04 | 西安西热锅炉环保工程有限公司 | A kind of thermal power plant's burning mixed mud removes stench system |
| CN110002181A (en) * | 2019-01-25 | 2019-07-12 | 中国联合工程有限公司 | A kind of sewage sludge storage and structure for conveying |
| CN110355172A (en) * | 2019-07-19 | 2019-10-22 | 同济大学建筑设计研究院(集团)有限公司 | A kind of foul gas collection system |
-
2013
- 2013-02-20 CN CN 201320078926 patent/CN203140404U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157039A (en) * | 2015-08-24 | 2015-12-16 | 南通天蓝环保能源成套设备有限公司 | Sludge and household garbage co-treatment system |
| CN105967488A (en) * | 2016-06-21 | 2016-09-28 | 普利资环境科技（苏州）有限公司 | Sludge drying treatment system with deodorization function |
| CN110002181A (en) * | 2019-01-25 | 2019-07-12 | 中国联合工程有限公司 | A kind of sewage sludge storage and structure for conveying |
| CN109734282A (en) * | 2019-02-22 | 2019-05-10 | 广州市思高特环保设备有限公司 | Sludge dehumidifying desiccation machine and sludge dehumidifying anhydration system |
| CN109838796A (en) * | 2019-03-21 | 2019-06-04 | 西安西热锅炉环保工程有限公司 | A kind of thermal power plant's burning mixed mud removes stench system |
| CN110355172A (en) * | 2019-07-19 | 2019-10-22 | 同济大学建筑设计研究院(集团)有限公司 | A kind of foul gas collection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203140404U (en) | Negative pressure deodorizing system for sludge drying workshop | |
| CN106178929B (en) | A kind of livestock and poultry farm foul smell smoke gas treatment system and method | |
| CN107774107B (en) | Foul smell purification system of garbage transfer station | |
| CN204021670U (en) | Refuse transfer station environment is carried standard configuration cover system | |
| CN206924608U (en) | Stench processing system for landfill leachate treatment station | |
| CN102895867A (en) | Biochemical waste gas deodorization purification apparatus and biological deodorization method | |
| CN202212406U (en) | Garbage treatment device for cyclically utilizing organisms to dry secondary pollutants | |
| CN207980858U (en) | Efficient deodorizing system for electro-osmosis sludge high-pressure desiccation machine | |
| CN207899233U (en) | A kind of complex light oxonium ion deodorization device | |
| CN106524383A (en) | Facility vegetable cleaning production intelligent equipment system | |
| CN105330119B (en) | A kind of method using solar energy and smoke residual heat to dry sludge | |
| US11091731B2 (en) | Method for facilitating aerobic fermentation reaction using combustion waste gas | |
| CN102716894A (en) | Method and system for drying aerobic organisms in urban raw garbage by aid of hot air | |
| CN203018437U (en) | Urban raw refuse aerobiont desiccation system | |
| CN106823732A (en) | A kind of high efficiency smart photodissociation cleaning equipment | |
| CN103394502B (en) | Independent air compartment anhydration system | |
| CN202784507U (en) | Environmental-friendly deodorizing garbage disposing device | |
| CN204268480U (en) | A kind of environment-friendly garbage treating apparatus | |
| CN207827894U (en) | Stench processing system for grille well | |
| CN206139007U (en) | High -efficiency biological filler deodorizing device | |
| CN205667782U (en) | High energy ultraviolet deodorizing device | |
| CN206229201U (en) | A kind of livestock and poultry farm foul smell smoke gas treatment system | |
| CN212268908U (en) | Can realize dry sludge transfer system of dustproof and purifying effect | |
| CN212269986U (en) | Household garbage treatment equipment | |
| CN209771801U (en) | Deodorizing device for negative-pressure air draft collection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140220 |