CN203833733U - Sewage cycle treatment device - Google Patents
Sewage cycle treatment device Download PDFInfo
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- CN203833733U CN203833733U CN201420134038.3U CN201420134038U CN203833733U CN 203833733 U CN203833733 U CN 203833733U CN 201420134038 U CN201420134038 U CN 201420134038U CN 203833733 U CN203833733 U CN 203833733U
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Abstract
The utility model relates to a sewage cycle treatment device and belongs to the field of sewage treatment. The sewage cycle treatment device comprises a machine body, a settling tank, a self sucking pump, a bag type precision filter, an electric cabinet, a zone generator, a pipeline, a connecting piece and a gate valve universal part. A sewage storage box with the lower portion open, a vacuum filter cartridge and a vacuum box with the upper portion open are arranged in the machine body and are assembled together from top to bottom in a matched mode, and a sealed reusing water tank is arranged below a vacuum tank. The self sucking pump, the bag type precision filter, the electric cabinet and the zone generator are fixedly installed on the outer side of the machine body, and the settling tank is a sealed box. According to the sewage cycle treatment device, water in the vacuum filter cartridge is pumped through the self sucking pump, so that negative pressure is generated in the vacuum filter cartridge, sewage in the upper sewage storage box passes through a filtering layer in a forcing mode and then undergoes follow-up bag type precision filtering and ozone disinfection deodorization, water cycle use efficiency and quality of filtered water are improved, the production cost is reduced, water is saved, and the sewage cycle treatment device has huge effect on sewage treatment and reuse.
Description
Technical field
The utility model relates to sewage circular treatment equipment, belongs to sewage treatment area.
Background technology
The equipment that known effluent cycle water uses is by precipitating, and filters two-stage process composition, and filtration unit adopts filter cotton, filter the filtering materials such as yarn, to the COD in sewage, impurity, oily substance, the clearances such as phosphorus are lower, also need to add various medicaments, need periodic replacement filter core, not only increase cost of sewage disposal, and water quality after treatment is also undesirable, can not remove peculiar smell in water, if recirculated water is used for carwash, residual medicament wherein, is also corrosive to car body.
Utility model content
The purpose of this utility model is to provide a kind of sewage circular treatment equipment, this machine can be to the COD in sewage, impurity, oily substance can be removed effectively, and vacuum filtration filter core can life-time service, without replacing, need not add medicament, the water colorless of processing, tasteless, the water of processing can safe reuse, greatly reduces processing cost; And have in the equipment of one and complete precipitation, filter progress, the advantage that floor space is little.
Technical solutions of the utility model are: sewage circular treatment equipment, comprises body, settling tank, vacuum primingpump, pocket type accurate filter, electric control box, ozonizer, pipeline, web member, valve general part; Described body comprises that one by steel plate and the angle steel housing that is welded; In body, there is the dirt storage box of a lower open mouth, a vacuum filter, a upper uncovered vacuum chamber, three parts match from top to bottom and are assembled together; Under vacuum chamber, be provided with an airtight reuse water tank;
Body outside is fixedly mounted with vacuum primingpump, pocket type accurate filter, electric control box and ozonizer;
Described settling tank is an airtight casing, is fixed on below ground, can make the pond of brick mix structure;
Further, the interior top of described dirt storage box, level is equipped with a shower; Shower one end, is connected to pipeline, leads to outside machine, is connected with the sewage pump in settler pond; Dirt storage box bottom, just to described vacuum filter;
Described vacuum filter has filter core, has bed filtration layer in filter core; A side in vacuum filter, has a sewage draining exit and leads to outside body; Below filter core, in the face of described upper uncovered vacuum chamber;
Described vacuum chamber one side, is provided with a discharge pipe line with gate valve; The opposite side of vacuum chamber, is provided with the water port that gate valve is housed;
Water-in is arranged at the top of described reuse water tank, and water outlet is arranged at bottom;
Described self-priming pump intake is by pipeline, is connected with the valve in the water port of vacuum chamber; The water outlet of vacuum primingpump is by pipeline, is connected with the import of described pocket type accurate filter;
The outlet of described pocket type accurate filter, by pipeline, is connected with reuse water tank inlet;
Described ozone generating-device, with being assemblied in a cabinet, ozone, by being arranged on the water sprayer in pipeline, is added to the water with self-con-tained unit;
In described settling tank, one side, top has sewage import; Bottom has mud discharging mouth; In the body of pond, vertical clapboard is housed, is divided into three lattice; Entering the opposite side that sewage mouth is relative, sewage pump is housed; The water port of sewage pump by pipeline, is switched to outside casing, and valve outside casing is connected, and the other end of this valve, by pipeline, leads to extra-organismal pipeline with the shower in open topped dirt storage box and be connected;
Further, described vacuum filter filter core divides five layers, is made up of from top to bottom 50 mesh filter screen layers, 100 order filter layer of cloth, quartz sand layer, 100 order filter layer of cloth, 50 mesh filter screen layers;
Further, the filtering accuracy of described pocket type accurate filter is 0.5 μ m; Bag type filtering treatment capacity is 10m
3/ h; Filter sock can Reusability after cleaning.
Further, isolating switch is equipped with in described electric control box inside, rly., intermediate relay, terminal, liquid level display, press button, pilot lamp; Liquid-level floater switch is housed, liquid level sensor in body; By the variation of liquid level in water tank, the operation of automatic control equipment;
Device control relation in electric control box is:
(1) in settling tank, sewage pump passes through the float switch in settling tank, with body dirt storage box inner float ball switch co-controlling, when water level in settling tank rises on water level in limited time, or in body, dirt storage box water level drops under water level in limited time, sewage lifting pump startup; When water level in settler drops under water level in limited time, or in body, dirt storage box water level rises on water level in limited time, and sewage pump shuts down;
(2) vacuum primingpump in body is by the liquid-level floater of dirt storage box, and the water level control sensor control of reuse water tank; When dirt storage box liquid level rises on water level in limited time, or reuse cistern water level drops under water level in limited time, and vacuum primingpump starts; When dirt storage box liquid level drops under water level in limited time, or reuse cistern water level rises on water level in limited time, and vacuum primingpump shuts down;
(3) operation of ozonizer is synchronizeed with vacuum primingpump;
(4) moisturizing of reuse water tank, by solenoid control, is prescribed a time limit when reuse high water tank drops under water level, and magnetic valve is open-minded, automatic water supplement;
(5) back flushing is drawn back and is recoiled with the water in water tank with vacuum primingpump;
(6) reuse high water tank is by light beam instruction liquid level above liquid level display.
Above technical scheme has produced good wastewater treatment efficiency, can in integration apparatus, complete the operations such as precipitation, filtration, floor space is little, and water after treatment is recycling, simple to operate, save manpower, five metafiltration material of filter core can prolonged and repeatedly use, without replacing, without adding medicament, process to obtain water colorless, tasteless, owing to disinfecting, therefore water quality can meet reuse water standard-required.
Owing to having used the technical process of brute force suction filtration water from filtering layer under negative pressure, not only make production efficiency improve, and filtration velocity is fast, water quality is good, and in removal water, peculiar smell is effective, to body non-corrosiveness.
Brief description of the drawings
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification sheets, is used from explanation the utility model with embodiment mono-of the present utility model, does not form restriction of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of a kind of sewage circular treatment equipment of the utility model.
Fig. 2 is that in the utility model Fig. 1, A-A cuts open in cross section the schematic diagram showing.
Fig. 3 is that in the utility model Fig. 1, B-B cuts open in cross section the schematic diagram showing.
Fig. 4 is the pipeline interface chart of the utility model body side.
Fig. 5 is the schematic diagram of the utility model equipment electrical equipment control.Wherein, (A) figure is MW-555 type liquid level controller table wiring scheme; (B) figure is primary connection figure; (C) figure is secondary connection diagram.
In accompanying drawing, the import of 1-sewage, 2-settling tank, 3-dividing plate, 4-sewage pump, 5-water port, 6-pipeline, 7-valve, 8-shower, 9-dirt storage box, 10-vacuum filter, 11-vacuum chamber, 12-extraction pipe, 13-gate valve, 14-discharge pipe line, 15-vacuum primingpump, 16-pipeline, 17-pocket type accurate filter, 18-pipeline, 19-water-in, 20-ozone generating-device, 21-sewage draining exit, 22-water port, 23-water outlet, 24-base, 25-reuse water tank, 26-float switch, 27-liquid level sensor, 40-body.
In accompanying drawing 4,1.-self-priming water pump, 2.-external pressure is direct, 3.-threeway, 4.-ball valve, 5.-recoil ball valve, 6.-elbow, 7.-ejector, 8.-strainer, 9.-water meter.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail, as can be seen from Figure 1, a kind of sewage circular treatment equipment, comprises body 40, settling tank 2, vacuum primingpump 15, pocket type accurate filter 17, electric control box, ozonizer 20, pipeline, web member, gate valve general part; Described body 40 comprises that one by steel plate and the angle steel housing that is welded; In body 40, having upper uncovered 11, three parts of vacuum chamber of 10, one, 9, one vacuum filtration filters of dirt storage box of a lower open mouth to match is assembled together from top to bottom; Have an airtight reuse water tank 25 at vacuum chamber 11;
Be fixedly mounted with vacuum primingpump 15, pocket type accurate filter 17, electric control box and ozonizer 20 in body outside;
Described settling tank 2 is airtight casings, and casing is fixed on lower than below ground, can make the pond of brick mix structure;
Further, the interior top of described dirt storage box 9, level is equipped with a shower 8; Shower 8 one end, are connected to pipeline 6, lead to outside machine, are connected with the sewage pump 4 in settling tank 2 ponds; Dirt storage box 9 bottoms, just to described vacuum filtration filter 10;
In the filter core of described vacuum filter 10, there is bed filtration layer; Filter core one side, has a sewage draining exit 21 and leads to outside body; To discharge body external application for filtering filter residue.Below filter core, in the face of described upper uncovered vacuum chamber 11;
Described vacuum chamber 11 1 sides, are provided with a discharge pipe line 14 with gate valve 13; The opposite side of vacuum chamber 11, is provided with water port 22, and valve is housed in water port; This gate valve 13, for before vacuum primingpump 15 work, before being full of filtered water, squeezes the air of vacuum chamber 11 in vacuum chamber 11.After in tank 11, air is discharged from, this valve cuts out.Now vacuum primingpump 15 starts to draw water, and to making the interior formation negative pressure of vacuum chamber 11, thereby strengthens the ability of suction sewage through filtering layer.
Water-in 19 is arranged at the top of described reuse water tank 25, and water outlet 23 is arranged at bottom;
The suction port of described vacuum primingpump 15 is by pipeline 14, is connected with the gate valve 13 in the water port of vacuum chamber 11; The water outlet of vacuum primingpump 15, is connected by pipeline 16 with the import of described pocket type accurate filter 17;
The outlet of described pocket type accurate filter 17 is connected with reuse water tank 25 water-ins 19 by pipeline 18.
Described ozone generating-device 20, with being assemblied in a cabinet, ozone, by being arranged on the water sprayer in pipeline, is added to the water with self-con-tained unit; The parameter of described ozone generating-device 20 is standard ozone output 5g/h, exit concentration 16.7mg/L, standard oxygenerator 5L/min, rate 670W.Ozone is added to the water by the water sprayer being arranged in pipeline, has changed original equipment ozone and has directly been added to the water mixing portion shortcoming equably, disinfecting, deodorizing better effects if;
Described water sprayer is made up of nozzle, suction chamber, diffuser pipe three parts.Water sprayer basic functional principle is according to energy conservation, adopts venturi nozzle structure.Increase at throat's flow velocity, kinetic energy improves and pressure energy decline, so that pressure drop is to producing suction function lower than normal atmosphere, gas suction is mixed with water.Water sprayer be in accompanying drawing 4 sequence number 7., model is SSQ-0.1, import export is φ 32, intake pressure is 025MP, rushing jetting amount is 0.227L/S.
In described settling tank 2, one side, top has sewage import 1; Bottom has mud discharging mouth; Vertical clapboard 3 is housed in the body of pond, is divided into three lattice; Be the opposite side that sewage import 1 is relative, sewage pump 4 is housed; The water port 5 of sewage pump 4 is connected outside casing by pipeline 6, and is connected with the outer valve 7 of casing, and the other end of this valve 7, is connected with open topped dirt storage box 9 internal sparger pipes 8 by pipeline;
Further, the filter core of described vacuum filter divides five layers, is made up of from top to bottom 50 object filter mesh layers, 100 object filter layer of cloth, quartz sand layer, 100 object filter layer of cloth, 50 object filter mesh layers;
The technical parameter of described vacuum filter is as follows:
Working temperature: 1～50 DEG C; Maximum working pressure (MWP): 1.0Mpa; Operation operating pressure: 0.3Mpa; Filtering velocity: > 4m～8m/h; Backwash form: water recoil; The backwash time: 15～30min.
Further, the filtering accuracy of described pocket type accurate filter 17 is 0.5 μ m; Bag type filtering treatment capacity is 10m
3/ h; The filter bag of strainer can Reusability after cleaning.Pocket type accurate filter 17 models are SGD-4N, and filter bag side leakage probability is little compared with original equipment strainer, has effectively ensured filtration quality; Bag type filtering can carry larger operating pressure, and crushing is little, and working cost is low, and energy-saving effect is obvious; Filter bag filtering accuracy improves constantly, and has reached 0.5 μ m; Bag type filtering treatment capacity is large, volume is little, and dirt content is large, and treatment capacity can reach 10m
3/ h, H=676mm, filter sock can Reusability, cost-saving after cleaning.(accompanying drawing 4 is shown in pipeline connection);
Further, isolating switch is equipped with in described electric control box inside, rly., intermediate relay, terminal, liquid level display, press button, pilot lamp; Liquid-level floater switch 26 is housed, liquid level sensor 27 in body; Carry out the operation of automatic control equipment by the variation of water tank 25 interior liquid levels; (circuit theory is shown in accompanying drawing 5); Above-mentioned electric elements, the existing device that can buy, belongs to the currently available products that market can be purchased.
Device control relation in electric control box is:
(1) the interior sewage pump 4 of settling tank 2 is by the float switch 26 in settling tank 2, co-controlling with body dirt storage box 9 inner float ball switches, when the interior water level of settling tank 2 rises to the water level upper limit, or in body, dirt storage box 9 water levels drop to water level lower limit, and sewage pump 4 starts; When the interior water level of settling tank 2 drops to water level lower limit, or in body, dirt storage box 9 water levels rise to the water level upper limit, and sewage pump 4 shuts down;
(2) vacuum primingpump 15 in body is controlled by the liquid-level floater 26 of dirt storage box 9 and the water level control sensor 27 of reuse water tank 25; When dirt storage box 9 liquid levels rise to the water level upper limit, or reuse water tank 25 water levels drop under water level in limited time, and vacuum primingpump 15 starts; When dirt storage box 9 liquid levels drop to water level lower limit, or reuse water tank 25 water levels rise on water level in limited time, and vacuum primingpump 15 shuts down;
(3) operation of ozonizer 20 is synchronizeed with vacuum primingpump 15;
(4) 25 moisturizings of reuse water tank, by solenoid control, are prescribed a time limit when reuse water tank 25 liquid levels drop under water level, and magnetic valve is open-minded, automatic water supplement;
(5) back flushing is drawn back and is recoiled with the water of water tank 25 with vacuum primingpump 15; Referring to Fig. 4
(6) reuse water tank 25 liquid levels are by light beam instruction liquid level above liquid level display.See accompanying drawing 5.
The workflow of sewage circular treatment equipment of the present utility model is: referring to Fig. 1, in figure, the wastewater from car washer of collecting enters settling tank 2 by sewage import 1, and the impurity in waste water and silt are extracted outward transport through precipitation out by sludge pump.Supernatant liquor is crossed dividing plate 3, by sewage pump 4, is risen in shower 8, sprays equably to dirt storage box 9 by shower 8.Water filters through filter core 10, and filtered water remains in vacuum chamber 11.And raise with the water surface, interior vacuum chamber 11 air is entered outside body 40, treat that air emptying shuts stopping valve.Vacuum primingpump 15 starts makes vacuum chamber 11, in vacuum state.Water under the effect of negative pressure in dirt storage box 9 sees through filtering layer 10, vacuum primingpump 15 can, by lodging in water in vacuum chamber 11 along pipeline 14,16, pump into pocket type accurate filter, after bag type filtering, enter in reuse water storage tank, finally by reuse water outlet reuse.
In the process of filtering, the impurity screening of vacuum filtration filter core top is discharged from sewage draining exit after back flushing, can avoid like this filter core top impurity too many, and filter element filtering ability is declined, and can extend the work-ing life of filter core.Sewage during by filtering layer the electrostatic layer on filter material layer will destroy the bonding force between water molecules and organism, and by Adsorption of Organic on filtering layer, thereby reach the object of sewage purification.Sewage, after the filtration of five metafiltration material, reaches national miscellaneous water standard completely, can recycle.
Above technical scheme has produced good wastewater treatment efficiency, can in integration apparatus, complete the operations such as precipitation, filtration, floor space is little, and water after treatment is recycling, simple to operate, save manpower, five metafiltration material of filter core can prolonged and repeatedly use, without replacing, without adding medicament, process to obtain water colorless, tasteless, owing to disinfecting, therefore water quality can meet reuse water standard-required.
Because the utility model has used the technical process of brute force suction filtration water from filtering layer under negative pressure, not only make production efficiency improve, and filtration velocity is fast, water quality is good, and in removal water, peculiar smell is effective, to body non-corrosiveness.
Through the filtered water in vacuum primingpump aspiration vacuum case, make strainer under negative pressure, filter by force, then process through follow-up secondary filter and virus killing.Thereby improve the quality that makes water, improve service efficiency, saved water, creative.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although ginseng has been described in detail to the utility model, for a person skilled in the art, it still can be modified to aforementioned recorded technical scheme, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improve, within being all included in claim protection domain of the present utility model.
Claims (4)
1. sewage circular treatment equipment, comprises body, settling tank, vacuum primingpump, pocket type accurate filter, electric control box, ozonizer, pipeline, web member, and valve, general part, described body comprises a housing being welded into by steel plate and angle steel; In body, there is the dirt storage box of a lower open mouth, a vacuum filter, a upper uncovered vacuum chamber, three parts match from top to bottom and are assembled together; Have an airtight reuse water tank at vacuum chamber;
Body outside is fixedly mounted with vacuum primingpump, pocket type accurate filter, electric control box and ozonizer;
Described settling tank is an airtight casing, is fixed on below ground, can make the pond of brick mix structure;
It is characterized in that, the interior top of described dirt storage box, level is equipped with a shower; Shower one end, is connected to pipeline, leads to outside machine, is connected with the sewage pump in settler pond; Dirt storage box bottom, just to described vacuum filter;
In described vacuum filter, there is filter core, in filter core, have five layers of filtering layer; Formed by filter mesh layer, filter layer of cloth, quartz sand layer, filter layer of cloth, filter mesh layer from top to bottom;
A side in described vacuum filter, has a sewage draining exit, leads to outside body; Below filter core, in the face of described upper uncovered vacuum chamber;
Described vacuum chamber one side, is provided with a discharge pipe line with gate valve; The opposite side of vacuum chamber, is provided with and fills valvular water port;
Water-in is arranged at the top of described reuse water tank, and water outlet is arranged at bottom;
Described self-priming pump intake is by pipeline, is connected with the valve in the water port of vacuum chamber; The water outlet of vacuum primingpump is by pipeline, is connected with the import of described pocket type accurate filter;
The outlet of described pocket type accurate filter, by pipeline, is connected with reuse water tank inlet;
Described ozone generating-device, with being assemblied in a cabinet, ozone, by being arranged on the water sprayer in pipeline, is added to the water with self-con-tained unit;
In described settling tank, one side, top has sewage import; Bottom has mud discharging mouth; In the body of pond, vertical clapboard is housed, is divided into three lattice; Entering the opposite side that sewage mouth is relative, sewage pump is housed; The water port of sewage pump by pipeline, is switched to outside casing, and valve outside casing is connected, and the other end of this valve, by pipeline, is connected with the shower in dirt storage box.
2. according to sewage circular treatment equipment claimed in claim 1, it is characterized in that, the filter core of described vacuum filter divides five layers, is made up of from top to bottom 50 mesh filter screen layers, 100 order filter layer of cloth, quartz sand layer, 100 order filter layer of cloth, 50 mesh filter screen layers.
3. according to sewage circular treatment equipment claimed in claim 2, it is characterized in that, the filtering accuracy of described pocket type accurate filter is 0.5 μ m; Bag type filtering treatment capacity is 10m
3/ h; Filter sock can Reusability after cleaning.
4. according to the sewage circular treatment equipment described in claim 1 or 2, it is characterized in that, isolating switch is equipped with in described electric control box inside, rly., intermediate relay, terminal, liquid level display, press button, pilot lamp; Liquid-level floater switch is housed, liquid level sensor in body; By the variation of liquid level in water tank, the operation of automatic control equipment;
Device control relation in electric control box is:
(1) in settling tank, sewage pump passes through the float switch in settling tank, with body dirt storage box inner float ball switch co-controlling, when water level in settling tank rises on water level in limited time, or in body, dirt storage box water level drops under water level in limited time, sewage lifting pump startup; When water level in settler drops under water level in limited time, or in body, dirt storage box water level rises on water level in limited time, and sewage pump shuts down;
(2) vacuum primingpump in body is by the liquid-level floater of dirt storage box, and the water level control sensor control of reuse water tank; When dirt storage box liquid level rises on water level in limited time, or reuse cistern water level drops under water level in limited time, and vacuum primingpump starts; When dirt storage box liquid level drops under water level in limited time, or reuse cistern water level rises on water level in limited time, and vacuum primingpump shuts down;
(3) operation of ozonizer is synchronizeed with vacuum primingpump;
(4) moisturizing of reuse water tank, by solenoid control, is prescribed a time limit when reuse high water tank drops under water level, and magnetic valve is open-minded, automatic water supplement;
(5) back flushing is drawn back and is recoiled with the water in water tank with vacuum primingpump;
(6) reuse high water tank is by light beam instruction liquid level above liquid level display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134038.3U CN203833733U (en) | 2014-03-21 | 2014-03-21 | Sewage cycle treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134038.3U CN203833733U (en) | 2014-03-21 | 2014-03-21 | Sewage cycle treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203833733U true CN203833733U (en) | 2014-09-17 |
Family
ID=51511604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420134038.3U Expired - Fee Related CN203833733U (en) | 2014-03-21 | 2014-03-21 | Sewage cycle treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203833733U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198126A (en) * | 2015-10-30 | 2015-12-30 | 烟台三禾畜牧养殖环境净化工程有限公司 | Poultry drinking water treatment equipment |
| CN108174816A (en) * | 2017-12-29 | 2018-06-19 | 五河县智凯环保科技有限公司 | A kind of rural culture industry water circulating repetition utilizes system |
| CN108240184A (en) * | 2016-12-27 | 2018-07-03 | 北京九尊能源技术股份有限公司 | Coal bed gas well reacting cycle pumping and washing process and device |
-
2014
- 2014-03-21 CN CN201420134038.3U patent/CN203833733U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198126A (en) * | 2015-10-30 | 2015-12-30 | 烟台三禾畜牧养殖环境净化工程有限公司 | Poultry drinking water treatment equipment |
| CN105198126B (en) * | 2015-10-30 | 2017-05-24 | 烟台三禾畜牧养殖环境净化工程有限公司 | Poultry drinking water treatment equipment |
| CN108240184A (en) * | 2016-12-27 | 2018-07-03 | 北京九尊能源技术股份有限公司 | Coal bed gas well reacting cycle pumping and washing process and device |
| CN108174816A (en) * | 2017-12-29 | 2018-06-19 | 五河县智凯环保科技有限公司 | A kind of rural culture industry water circulating repetition utilizes system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160321 |