CN104107618B - Low-concentration large-air-volume waste gas concentration and wind reduction system - Google Patents
Low-concentration large-air-volume waste gas concentration and wind reduction system Download PDFInfo
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- CN104107618B CN104107618B CN201410385346.8A CN201410385346A CN104107618B CN 104107618 B CN104107618 B CN 104107618B CN 201410385346 A CN201410385346 A CN 201410385346A CN 104107618 B CN104107618 B CN 104107618B
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Abstract
The invention discloses a low-concentration large-air-volume waste gas concentration and wind reduction system. The system is provided with a waste gas pretreatment unit, an adsorption and concentration unit, a desorption and cooling unit and a control unit, wherein the waste gas pretreatment unit comprises a gas charging electromagnetic valve, a gas charging fan, a filter and a cooler which are communicated sequentially; the adsorption and concentration unit comprises a driving motor, a belt, a three-way connecting pipe and a zeolite rotating wheel which is made from a molecular sieve, wherein the driving motor is electrically connected with the control unit and connected with the zeolite rotating wheel through the belt; the inside of the zeolite rotating wheel is of a honeycomb structure which is divided into three regions which are respectively an adsorption region, a regeneration region and a cooling region; the adsorption and concentration unit and the desorption and cooling unit are connected in series and also connected in parallel with a second adsorption and concentration unit and a second desorption and cooling unit. The system disclosed by the invention has the advantages of low treatment cost, good desorption effect, high efficiency, simple equipment and small size.
Description
Technical field
The present invention relates to waste gas treatment equipment technical field, more particularly, to a kind of low concentration Wind Volume waste gas concentration and checking
System.
Background technology
Low concentration, the VOCs of Wind Volume are emitted in the Organic Waste Gas Pollution of current China the very big ratio that account for, absorption
Concentration technique is the most cost-effective technological approaches during low concentration gas are administered.But the species of VOCs is various, complicated component, property
Matter is different, and often difficult to reach administers requirement to adopt a kind of purification techniques under many circumstances, nor economical.Using difference
The advantage of unit Treatment process, using combined treatment technique, not only can meet emission request, and can reduce cleaning equipment
Operating cost.Therefore, in VOCs treatment, the group technology using two or more purification techniques obtains in recent years
Develop rapidly.Zeolite runner Adsorption Concentration technology is aiming at the improvement of low concentration VOCs and a kind of new technology of growing up,
It is combined with incineration technology (catalysis burning or high temperature incineration) or condensation technology, define " zeolite runner Adsorption Concentration+burning
Technology " and " zeolite runner Adsorption Concentration+condensation recovery technology ".
Contain multiple high boiling substances, polymeric material in industrial waste gas, and contain certain solid particle, desorption heat is not
Foot, solid particle blocks duct, and polymer occupies adsorption potential and is difficult to be desorbed, and causes zeolite to inactivate, affects adsorption efficiency.
United States Patent (USP) 4957721 etc. makes improvements, and uses elevated temperature desorption by after the zeolite runner dismounting of inactivation, but dismounting
Program is numerous and diverse, and zeolite is fragile, deterioration is pulverized.
At present zeolite runner is applied to Wind Volume, the exhaust-gas treatment of low concentration, but zeolite runner all to there is cocnentration factor not high,
In waste gas after concentration, VOCs concentration is not enough, causes its burning to be not enough to supply heat or maintain burning, needs to add a large amount of auxiliary combustions
Material, running cost is high.
Content of the invention
Present invention aims to the problems referred to above weak point, low concentration Wind Volume waste gas is provided to concentrate and checking system
System, has that processing cost is low, and desorption effect is good, efficiency high, equipment simple, the advantage of small volume.
In order to achieve the above object, the present invention employs the following technical solutions：
Low concentration Wind Volume waste gas concentrates and checking system, and it is provided with waste gas pretreatment unit, Adsorption Concentration unit, desorption
Cooling unit and control unit；Air inlet electromagnetic valve that described waste gas pretreatment unit includes being sequentially communicated, ventilating fan, filter
And cooler；Described Adsorption Concentration unit includes motor, belt, three-limb tube, the zeolite runner being made up of molecular sieve,
Described motor is electrically connected with described control unit, and described motor is connected with described zeolite runner by belt；Institute
Stating inside zeolite runner is in honeycomb, and this honeycomb is divided into three areas, respectively adsorption zone, renewing zone and cooling zone；Institute
State three-limb tube and be provided with three ports, the respectively first air inlet port, the first air outlet and the second air outlet, described
One air inlet port is connected with described cooler, and described first air outlet is with the adsorption zone end face set by described zeolite runner even
Logical, described second air outlet is connected with described cooling zone end face, and described desorption cooling unit includes regenerating tracheae, heating
Device, hot recycling tracheae, escape pipe, exhaust blower；Described regeneration tracheae one end and the cooling zone other end set by described zeolite runner
Face connects, and the other end of described regeneration tracheae connects with described heater, described hot recycling tracheae one end and described zeolite runner
The connection of renewing zone end face, the described hot recycling tracheae other end connects with the described heater other end, described escape pipe connection
Set by described zeolite runner between renewing zone other end and described exhaust blower；Described control unit is all electrically connected at described
Air inlet electromagnetic valve, exhaust blower.
Further, described second air outlet and the renewing zone end face set by described zeolite runner pass through the first branched pipe
14 connections.
Present invention additionally comprises the second Adsorption Concentration unit, the second desorption cooling unit and exhaust unit；Described exhaust unit
Including blast pipe one, blast pipe two and the 5th magnetic valve, described 5th magnetic valve is connected to described blast pipe one and blast pipe two
Between, described blast pipe one other end is connected with the adsorption zone other end of described zeolite runner；Described second Adsorption Concentration list
Unit includes the first three-limb tube, the second three-limb tube, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the second zeolite
Runner, the second belt, the second motor, described second motor is electrically connected with described control unit, described second drive
Dynamic motor is connected with described second zeolite runner by the second belt；It is provided with one by molecular sieve inside described second zeolite runner
The second honeycomb made, this second honeycomb is divided into three areas, the respectively second adsorption zone, the second renewing zone and second
Cooling zone, described second three-limb tube is provided with three ports, and the respectively second air inlet port, the 3rd air outlet and the 4th are given vent to anger
Port, described first magnetic valve is connected between described 3rd air outlet and described first air inlet port, described second air inlet
Port is connected with described cooler；Described 3rd three-limb tube is provided with three ports, the respectively the 3rd air inlet port, the 5th goes out
Gas port and the 6th air outlet, described second magnetic valve located at described 4th air outlet and described 3rd air inlet port it
Between, described 6th air outlet is connected with the adsorption zone end face set by described second zeolite runner, described 5th air outlet
Connected with described blast pipe one by the 4th magnetic valve；Described second adsorption cooling unit include the second regeneration escape pipe, second
Heater, the second hot recycling gas inlet pipe, the second escape pipe, branched pipe, described 6th air outlet and described second zeolite runner
Set adsorption zone end face connection, described 3rd magnetic valve located at described 6th air outlet and described branched pipe one end it
Between, the described branched pipe other end is connected with the second cooling zone end face set by described second zeolite runner, and the second regeneration gas goes out
Pipe is connected with adsorption zone other end set by described second zeolite runner, and described secondary heater is connected to described second and regenerates
Between tracheae and described second hot recycling gas inlet pipe, set by the described second hot recycling gas inlet pipe other end and described zeolite runner again
The end face connection of raw area, described second escape pipe be connected to renewing zone other end set by described second zeolite runner with described
Between escape pipe.
It is connected with the first flow-limiting valve between described zeolite runner and described first air outlet.
First temperature sensor is provided with described heater, described temperature sensor and described control unit electrically connect
Connect.
Further, described heater is steam-type heater or is electric heater；Described secondary heater adds for steam-type
Hot device or be electric heater.If described heater or secondary heater are electric heater, then described heater is single with control
Unit is electrically connected with, or described secondary heater is electrically connected with described control unit.
Further, present invention additionally comprises there being two temperature sensors, it is respectively arranged at heater and secondary heater, in case
Monitoring temperature, described temperature sensor is electrically connected with described control unit.
Operating procedure
First, parallel operation is it is adaptable to Wind Volume process
1st, waste gas preprocessing process
Open air inlet electromagnetic valve 1, the first magnetic valve 5, the second magnetic valve 8, the 5th magnetic valve 9, close by control unit
4th magnetic valve 10.Start ventilating fan 2.The waste gas discharging from workshop containing volatile organic solvent is first flowed by ventilating fan 2
Carry out dust removal by filtration 3 through filter 3, be re-fed into cooler 4, carry out cooling process.
2nd, Adsorption Concentration process
Waste gas through cooling, enters the adsorption zone 6a of zeolite runner 6 and the second of the second zeolite runner 11 by parallel pipeline
Adsorption zone 11a, the clean gas after absorption are led to smoke stack emission through blast pipe one and the second escape pipe.Using motor and
Two motors make zeolite runner and the second zeolite runner in due course between be spaced and rotated in stepped or continuous mode, make needs again
Raw honeycomb and the second honeycomb enter desorption and regeneration area 6c and second desorption area 11c.
3rd, it is desorbed cooling procedure
Open exhaust blower 13, open sequencing valve 14,15, as desorption gas, its flow is main line to extension waste gas
The 1/10-1/20 of flow.Portion first passes through cooling zone 6b, 11b, make zeolite cool down, heating by the exhaust gases, open heater 7,
12, the waste gas of preheating is warming up to 180-280 DEG C.High-temp waste gas enter regeneration desorption area 6c, 11c, make the organic of zeolite adsorption
Thing is desorbed.Gas after desorption enters post processing.
2nd, serial operation is it is adaptable to provide the process of highly enriched ratio
1st, waste gas preprocessing process
Open sequencing valve 1,5,10, close valve 8,9.Start air-introduced machine 2.Air-introduced machine will discharge from workshop containing volatility
The waste gas of organic solvent first passes through dust removal by filtration 3, is re-fed into surface cooler 4, carries out cooling process.
2nd, Adsorption Concentration process
Waste gas through cooling, is entered the adsorption zone 6a of zeolite runner 6 by pipeline, and after absorption, gas is entering zeolite runner 11
Adsorption zone 11a.Clean gas are led to smoke stack emission through pipeline.Using drive component make runner in due course between be spaced with stepping
Or continuation mode rotation, make the runner that needs regenerate enter desorption and regeneration area 6c, 11c.
3rd, it is desorbed cooling procedure
Open air-introduced machine 13, open the first branched pipe 14 and branched pipe 15, as desorption gas, it flows extension waste gas
The 1/10-1/20 of piping flow based on amount.Portion first passes through cooling zone 6b, the second cooling zone 11b, so that zeolite is cooled down, gives up
Gas preheats, and opens heater 7, secondary heater 12, the waste gas of preheating is warming up to 180-280 DEG C.High-temp waste gas enter regeneration
Desorption area 6c, the second desorption area 11c, make the organic matter of zeolite adsorption be desorbed.Gas after desorption enters post processing.
The present invention adopts said structure, has that processing cost is low, and desorption effect is good, efficiency high, equipment simple, small volume
Advantage.
Brief description
Fig. 1 is present configuration schematic diagram.
Below by way of the drawings and specific embodiments, the invention will be further described.
Specific embodiment
As shown in figure 1, low concentration Wind Volume waste gas of the present invention concentrates and checking system, its waste gas pretreatment unit, absorption
Upgrading unit, desorption cooling unit and control unit；Air inlet electromagnetic valve 1 that described waste gas pretreatment unit includes being sequentially communicated,
Ventilating fan 2, filter 3 and cooler 4；Described Adsorption Concentration unit include motor, belt, three-limb tube, by point
The zeolite runner 6 that sub- sieve series becomes, described motor is electrically connected with described control unit, described motor pass through belt with
Described zeolite runner 6 connects；Described zeolite runner 6 is internal to be in honeycomb, and this honeycomb is divided into three areas, respectively adsorbs
Area 6a, renewing zone 6c and cooling zone 6b；Described three-limb tube is provided with three ports, the respectively first air inlet port, first goes out
Gas port and the second air outlet, described first air inlet port is connected with described cooler 4, described first air outlet with described
Adsorption zone 6a end face connection set by zeolite runner 6, described second air outlet is connected with described cooling zone 6c end face, institute
State desorption cooling unit to include regenerating tracheae, heater 7, hot recycling tracheae, escape pipe, exhaust blower 13；Described regeneration tracheae one
End connect with the cooling zone 6c other end set by described zeolite runner 6, described regenerates the other end of tracheae and described heater 7
Connection, described hot recycling tracheae one end is connected with the renewing zone 6b end face of described zeolite runner 6, and described hot recycling tracheae is another
End connect with described heater 7 other end, described escape pipe be connected to renewing zone 6b other end set by described zeolite runner 6 and
Between described exhaust blower 13；Described control unit is all electrically connected at described air inlet electromagnetic valve 1, exhaust blower 13.
Further, described second air outlet and the renewing zone 6c end face set by described zeolite runner 6 pass through first point
Arm 14 connects.
Present invention additionally comprises the second Adsorption Concentration unit, the second desorption cooling unit and exhaust unit；Described exhaust unit
Including blast pipe one, blast pipe two and the 5th magnetic valve 9, described 5th magnetic valve is connected to described blast pipe one and blast pipe two
Between, described blast pipe one other end is connected with the adsorption zone 6a other end of described zeolite runner 6；Described second Adsorption Concentration
Unit include the first three-limb tube, the second three-limb tube, the first magnetic valve 5, the second magnetic valve 8, the 3rd magnetic valve 15,
Two zeolite runners 11, the second belt, the second motor, described second motor is electrically connected with described control unit, institute
State the second motor to be connected with described second zeolite runner 11 by the second belt；It is provided with inside described second zeolite runner 11
One the second honeycomb being made up of molecular sieve, this second honeycomb is divided into three areas, the respectively second adsorption zone 11a,
Second renewing zone 11c and the second cooling zone 11b, described second three-limb tube is provided with three ports, the respectively second air inlet port,
3rd air outlet and the 4th air outlet, described first magnetic valve 5 is connected to described 3rd air outlet and enters with described first
Between gas port, described second air inlet port is connected with described cooler 4；3rd three-limb tube is provided with three ports, respectively
For the 3rd air inlet port, the 5th air outlet and the 6th air outlet, described second magnetic valve 8 is located at described 4th air outlet
And described 3rd air inlet port between, described 6th air outlet and adsorption zone 11a mono- set by described second zeolite runner 11
End face connects, and described 5th air outlet is connected with described blast pipe one by the 4th magnetic valve 10；Described second absorption cooling
Unit includes the second regeneration escape pipe, secondary heater 12, the second hot recycling gas inlet pipe, the second escape pipe, branched pipe, and described
Six air outlet are connected with the adsorption zone 11a end face set by described second zeolite runner 6, and described 3rd magnetic valve 15 is located at institute
State between the 6th air outlet and described branched pipe one end, set by the described branched pipe other end and described second zeolite runner 11
Second cooling zone end face connection, blast pipe three is connected with adsorption zone 11a other end set by described second zeolite runner 11, institute
State secondary heater 12 to be connected between described second regeneration escape pipe and described second hot recycling gas inlet pipe, described second heat is again
The angry inlet pipe other end is connected with renewing zone 11c end face set by described zeolite runner 11, and described second escape pipe is connected to institute
State between renewing zone 11c other end and the described escape pipe set by the second zeolite runner 11.
It is connected with the first flow-limiting valve between described zeolite runner 6 and described first air outlet.
First temperature sensor is provided with described heater 7, described temperature sensor and described control unit electrically connect
Connect.
Further, described heater 7 is steam-type heater or is electric heater；Described secondary heater 12 is steam-type
Heater or be electric heater.If described heater 7 or secondary heater 12 are electric heater, then described heater 7 with
Control unit is electrically connected with, or described secondary heater 12 is electrically connected with described control unit.
Further, present invention additionally comprises there being two temperature sensors, it is respectively arranged at heater and secondary heater, in case
Monitoring temperature, described temperature sensor is electrically connected with described control unit.
Operating procedure
First, parallel operation is it is adaptable to Wind Volume process
1st, waste gas preprocessing process
Open air inlet electromagnetic valve 1, the first magnetic valve 5, the second magnetic valve 8, the 5th magnetic valve 9, close by control unit
4th magnetic valve 10.Start ventilating fan 2.The waste gas discharging from workshop containing volatile organic solvent is first flowed by ventilating fan 2
Carry out dust removal by filtration 3 through filter 3, be re-fed into cooler 4, carry out cooling process.
2nd, Adsorption Concentration process
Waste gas through cooling, enters the adsorption zone 6a of zeolite runner 6 and the second of the second zeolite runner 11 by parallel pipeline
Adsorption zone 11a, the clean gas after absorption are led to smoke stack emission through blast pipe one and the second escape pipe.Using motor and
Two motors make zeolite runner and the second zeolite runner in due course between be spaced and rotated in stepped or continuous mode, make needs again
Raw honeycomb and the second honeycomb enter desorption and regeneration area 6c and second desorption area 11c.
3rd, it is desorbed cooling procedure
Open exhaust blower 13, open sequencing valve 14,15, as desorption gas, its flow is main line to extension waste gas
The 1/10-1/20 of flow.Portion first passes through cooling zone 6b, 11b, make zeolite cool down, heating by the exhaust gases, open heater 7,
12, the waste gas of preheating is warming up to 180-280 DEG C.High-temp waste gas enter regeneration desorption area 6c, 11c, make the organic of zeolite adsorption
Thing is desorbed.Gas after desorption enters post processing.
2nd, serial operation is it is adaptable to provide the process of highly enriched ratio
1st, waste gas preprocessing process
Open sequencing valve 1,5,10, close valve 8,9.Start air-introduced machine 2.Air-introduced machine will discharge from workshop containing volatility
The waste gas of organic solvent first passes through dust removal by filtration 3, is re-fed into surface cooler 4, carries out cooling process.
2nd, Adsorption Concentration process
Waste gas through cooling, is entered the adsorption zone 6a of zeolite runner 6 by pipeline, and after absorption, gas is entering zeolite runner 11
Adsorption zone 11a.Clean gas are led to smoke stack emission through pipeline.Using drive component make runner in due course between be spaced with stepping
Or continuation mode rotation, make the runner that needs regenerate enter desorption and regeneration area 6c, 11c.
3rd, it is desorbed cooling procedure
Open air-introduced machine 13, open the first branched pipe 14 and branched pipe 15, as desorption gas, it flows extension waste gas
The 1/10-1/20 of piping flow based on amount.Portion first passes through cooling zone 6b, the second cooling zone 11b, so that zeolite is cooled down, gives up
Gas preheats, and opens heater 7, secondary heater 12, the waste gas of preheating is warming up to 180-280 DEG C.High-temp waste gas enter regeneration
Desorption area 6c, the second desorption area 11c, make the organic matter of zeolite adsorption be desorbed.Gas after desorption enters post processing.
The present invention adopts said structure, has that processing cost is low, and desorption effect is good, efficiency high, equipment simple, small volume
Advantage.
Not restriction technical scheme, every technology without departing from spirit of the present invention described above, belong to this
In the right of invention.
Claims (3)
1. low concentration Wind Volume waste gas concentrate and checking system it is characterised in that：It is provided with waste gas pretreatment unit, Adsorption Concentration list
Unit, desorption cooling unit and control unit；Described waste gas pretreatment unit includes air inlet electromagnetic valve, the air inlet wind being sequentially communicated
Machine, filter and cooler；Described Adsorption Concentration unit includes motor, belt, three-limb tube, is made up of molecular sieve
Zeolite runner, described motor is electrically connected with described control unit, and described motor is turned with described zeolite by belt
Wheel connects；Be in honeycomb inside described zeolite runner, this honeycomb is divided into three areas, respectively adsorption zone, renewing zone and
Cooling zone；Described three-limb tube is provided with three ports, the respectively first air inlet port, the first air outlet and the second outlet side
Mouthful, described first air inlet port connects with described cooler, described first air outlet and the absorption set by described zeolite runner
Area's end face connection, described second air outlet is connected with described cooling zone end face, and described desorption cooling unit includes regenerating
Tracheae, heater, hot recycling tracheae, escape pipe, exhaust blower；Described regeneration tracheae one end and the cooling set by described zeolite runner
Area other end connect, described regeneration tracheae the other end connect with described heater, described hot recycling tracheae one end with described
The renewing zone end face connection of zeolite runner, the described hot recycling tracheae other end is connected with the described heater other end, described go out
Tracheae is connected to set by described zeolite runner between renewing zone other end and described exhaust blower；Described control unit all electrically connects
It is connected to described air inlet electromagnetic valve, exhaust blower；Also include the second Adsorption Concentration unit, the second desorption cooling unit and exhaust unit；
Described exhaust unit includes blast pipe one, blast pipe two and the 5th magnetic valve, and described 5th magnetic valve is connected to described blast pipe
Between one and blast pipe two, described blast pipe one other end is connected with the adsorption zone other end of described zeolite runner；Described
Two Adsorption Concentration units include the first three-limb tube, the second three-limb tube, the first magnetic valve, the second magnetic valve, the 3rd electricity
Magnet valve, the second zeolite runner, the second belt, the second motor, described second motor is electrically connected with described control unit
Connect, described second motor is connected with described second zeolite runner by the second belt；Set inside described second zeolite runner
There is second honeycomb being made up of molecular sieve, this second honeycomb is divided into three areas, the respectively second adsorption zone,
Two renewing zones and the second cooling zone, described second three-limb tube is provided with three ports, the respectively second air inlet port, the 3rd gives vent to anger
Port and the 4th air outlet, described first magnetic valve be connected to described 3rd air outlet and described first air inlet port it
Between, described second air inlet port is connected with described cooler；3rd three-limb tube is provided with three ports, the respectively the 3rd air inlet
Port, the 5th air outlet and the 6th air outlet, described second magnetic valve is located at described 4th air outlet and the described 3rd
Between air inlet port, described 6th air outlet is connected with the adsorption zone end face set by described second zeolite runner, and described
Five air outlet are connected with described blast pipe one by the 4th magnetic valve；Described second adsorption cooling unit includes second and regenerates
Tracheae, secondary heater, the second hot recycling gas inlet pipe, the second escape pipe, branched pipe, described 6th air outlet and described second
Adsorption zone end face connection set by zeolite runner, described 3rd magnetic valve is located at described 6th air outlet and described branched pipe
Between one end, the described branched pipe other end is connected with the second cooling zone end face set by described second zeolite runner, and second again
Angry outlet pipe is connected with adsorption zone other end set by described second zeolite runner, and described secondary heater is connected to described second
Between regeneration escape pipe and described second hot recycling gas inlet pipe, the described second hot recycling gas inlet pipe other end and described zeolite runner
The end face connection of set renewing zone, described second escape pipe is connected to the renewing zone other end set by described second zeolite runner
And described escape pipe between.
2. according to claim 1 low concentration Wind Volume waste gas concentrate and checking system it is characterised in that：Described zeolite runner
It is connected with the first flow-limiting valve and described first air outlet between.
3. according to claim 1 low concentration Wind Volume waste gas concentrate and checking system it is characterised in that：On described heater
First temperature sensor is installed, described temperature sensor is electrically connected with described control unit.
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| CN201410385346.8A CN104107618B (en) | 2014-08-07 | 2014-08-07 | Low-concentration large-air-volume waste gas concentration and wind reduction system |
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| CN201410385346.8A CN104107618B (en) | 2014-08-07 | 2014-08-07 | Low-concentration large-air-volume waste gas concentration and wind reduction system |
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| CN104107618B true CN104107618B (en) | 2017-02-08 |
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| CN204051374U (en) * | 2014-08-07 | 2014-12-31 | 石家庄天龙环保科技有限公司 | Low concentration Wind Volume waste gas concentrates and checking system |
-
2014
- 2014-08-07 CN CN201410385346.8A patent/CN104107618B/en active Active
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|---|---|---|---|---|
| US6328787B1 (en) * | 1998-07-14 | 2001-12-11 | Seibu Giken Co., Ltd. | Apparatus and method for treating gas using a honeycomb rotor having a plurality of desorbing zones |
| CA2698538A1 (en) * | 2007-09-12 | 2009-03-19 | Munters Corporation | Apparatus and method for in-situ high temperature regeneration of a rotor sorption concentrator |
| CN203389498U (en) * | 2013-08-28 | 2014-01-15 | 宁波弘景环保科技有限公司 | Painting waste gas treatment device |
| CN204051374U (en) * | 2014-08-07 | 2014-12-31 | 石家庄天龙环保科技有限公司 | Low concentration Wind Volume waste gas concentrates and checking system |
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Address after: 051430 in the equipment manufacturing base of Shijiazhuang City, Hebei Province (north of equipment Road, west of Fangxi street, south of Zheshang electromechanical Park, east of South to north water diversion water plant) Patentee after: HEBEI TIANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 050000 No. 35, Shijiazhuang Road, Yuhua District, Hebei, China Patentee before: TIANLONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |