CN203190442U - Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln - Google Patents
Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln Download PDFInfo
- Publication number
- CN203190442U CN203190442U CN2013200897287U CN201320089728U CN203190442U CN 203190442 U CN203190442 U CN 203190442U CN 2013200897287 U CN2013200897287 U CN 2013200897287U CN 201320089728 U CN201320089728 U CN 201320089728U CN 203190442 U CN203190442 U CN 203190442U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- air supply
- rich gas
- main air
- oxygen rich
- 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 - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses an oxygen enrichment combustion-supporting energy-saving device of a ceramic kiln, and belongs to the field of the energy-saving and environmental protection technology of the ceramic kiln. The oxygen enrichment combustion-supporting energy-saving device of the ceramic kiln comprises an oxygen enrichment membrane assembly, a water ring vacuum pump, an oxygen enrichment gas buffer tank, a booster fan and a combustor which are connected in sequence, wherein the combustor comprises combustor pipe bodies, a main air supply pipeline, a fuel pipeline and a combustor jet nozzle, one ends of the combustor pipe bodies are sealed, the other ends of the combustor pipe bodies are connected with the combustor jet nozzle, a plurality of the combustor pipe bodies are provided, the booster fan is connected with the main air supply pipeline through an oxygen enrichment gas pipeline, the fuel pipeline and the main air supply pipeline are respectively connected with the combustor pipe bodies, and the main air supply pipeline is connected with a main air supply fan. According to the kiln atmosphere characteristics in the ceramic sintering process, the oxygen enrichment combustion-supporting energy-saving device of the ceramic kiln uses the oxygen enrichment gas to replace part air, can obviously reduce discharged smoke and loss of heat, saves energy, and reduces emission of harmful gas at the same time.
Description
Technical field
The utility model relates to the energy-conserving and environment-protective technical field of ceramic kiln, is specifically related to a kind of ceramic kiln oxygen-enriched combustion-supporting energy saver.
Background technology
According to statistics, domestic various industrial furnaces (not comprising boiler) have 110,000 approximately at present, account for 1/4 of national total energy consumption, account for 60% of the total power consumption of industry.90% SO in China's atmosphere
X, 85% CO
2, 80% RO
X(dust) and 50% NO
XPollute all from Industrial Boiler, stove, in the China energy shortage, advance energy-conserving and environment-protective, development pollution-free industry under the prerequisite that environmental pollution increasingly sharpens, particularly advance the energy-saving and emission-reduction of this high pollution of industrial furnace, high energy consumption industry that China be can't but go ahead, very urgent.
Strong day by day at international and domestic energy-saving and emission-reduction cry, factors such as style of economic increase transformation, energy efficiency driving, policy support drive down, and Industrial Stoves energy-conserving and environment-protective market is with sustainable development.China has more than 15000 of various ceramic kiln at present, though China's ceramic industry output holds a safe lead in the world, no matter is the thermal efficiency or heat energy utilization rate, and is generally all lower, and unit consumption of product is big, the cost height.On the other hand, the ceramic kiln production process is when consuming a large amount of energy, and the flue gas that fuel combustion produces contains very harmful CO
2, SO
2And NO
XDeng pernicious gas.Therefore energy-conservation and environmental protection becomes the central task that ceramic kiln is transformed.
Look back the developing history of China's ceramic industry, be not difficult to find that the fuel of ceramic industry just has coal, fuel oil, combustion gas etc., and that fuel accounts for this industry production cost proportion is bigger.Enterprise is when improving technology for a long time, all pay attention to very much fuel-saving technology and technology, as the scientific and reasonable burner of optimal design, the innovation of firing technology, the improvement of furnace construction, heat recovery, the automatic control of stove etc., but everything still can not change the fact big with external like product energy consumption level gap.
Determine the factor of burning to have: fuel, temperature and oxygen.The volume content of well-known airborne oxygen is 20.93%, nitrogen is 78.1% and a spot of inert gas etc.No matter Industrial Boiler or Industrial Stoves are in the process of fuel combustion, an oxygen duty gas total amount about 1/5, not only and nitrogen and other inert gases of duty gas total amount about 4/5 are not combustion-supporting, on the contrary will be along with a large amount of heat energy of taking away of burning.
People are called oxygen rich air to oxygen content greater than 20.93% air.A large amount of experiments and practice show: oxygen rich air participates in burning will have significantly energy-conservation and environmental protection effect.Oxygen-enriched combustion-supporting technical energy saving mechanism is as follows:
(1) strengthened the burning of fuel as the combustion system of oxidant source because of oxygen-enriched combustion-supporting with oxygen enrichment, popular says, under oxygen-enriched environment, and fuel after-flame rapidly in the shortest time; Can make fuel discharge all heats fully, improve the burnout rate of fuel.
(2) reduce the heat loss of fuel as the combustion system of oxidant source because of oxygen-enriched environment with oxygen enrichment, saved fuel;
(3) energy-conservation because of the heating rate that oxygen-enriched environment effectively raises combustion system as the combustion system of oxidant source with oxygen enrichment;
(4) concerning the combustion system that can suitably improve technological temperature, because oxygen-enriched environment can effectively improve the furnace flame temperature, effectively improved the heat transference efficiency of furnace flame as boiler, kiln, significantly energy-conservation.
(5) can effectively improve flame blackness as the combustion system of oxidant source because of oxygen-enriched environment with oxygen rich gas, improve heat transfer efficiency, improve heat utilization ratio, thus energy-conservation.
(6) can effectively reduce excess air coefficient as the combustion system of oxidant source because of oxygen-enriched environment with oxygen enrichment, reduce the capacity after the burning, and then reduced waste-heat rejection, improve the thermal efficiency, thus energy-conservation.
(7) with the combustion system of oxygen enrichment as oxidant source, can reduce the fuel ignition temperature, improve flame intensity and increase release heat etc., thereby obtain more wide in range fuel range of choice, can utilize fuel more inferior or alternative fuel under the equal conditions.
But the key technology with oxygen-enriched combustion technology combines with ceramic kiln comprises: the 1. distribution technology of oxygen-enriched air stream; 2. with the matching technique of combustion furnace; 3. the design of special-purpose (patent) oxygen enrichment nozzle etc., the quality that these key technologies are used, be directly connected to the quality of the important indicator such as energy-conservation, volume increase, service life, environmental protection of boiler plant, can the boiler behind the oxygen-enriched combusting increase the key point of comprehensive benefit.
The utility model content
The purpose of this utility model is to provide a kind of ceramic kiln oxygen-enriched combustion-supporting energy saver; this device is according to stove atmosphere characteristics in the ceramic sintering process; use oxygen rich gas instead of part combustion air, can obviously reduce the fume emission heat loss simultaneously, save the energy, protection environment.
The technical solution of the utility model is:
A kind of ceramic kiln oxygen-enriched combustion-supporting energy saver, this device comprise oxygen-enriched membrane component, water ring vacuum pump, oxygen rich gas surge tank, booster fan and the burner that links to each other successively; Described burner comprises burner body, main air supply duct, fuel conduit and burner nozzle, wherein: the end sealing of described burner body, the other end connects burner nozzle, and the burner body can be for a plurality of; Described booster fan connects fuel conduit by the oxygen rich gas pipeline, and fuel conduit is connected with each burner body respectively with main air supply duct; Main air supply duct also connects main breeze fan.
Described fuel conduit, main air supply duct and oxygen rich gas pipeline all are made up of trunk line and lateral, and fuel conduit is connected each burner body by each lateral respectively with main air supply duct; Booster fan connects the trunk line of oxygen rich gas pipeline, each lateral of oxygen rich gas pipeline is distinguished corresponding connection with each lateral of fuel conduit, and (oxygen rich gas enters fuel conduit by each lateral of oxygen rich gas, oxygen rich gas and fuel gas are realized premixed in fuel conduit, enter jointly in the fuel device body then, and in the oxygen rich gas branching of pipes pipeline in pressure and the fuel conduit lateral of oxygen rich gas the pressure of fuel equate (before the premixed)).
Be connected to fuel flow control valve on the trunk line of described fuel conduit, connect main air supply duct control valve on the trunk line of main air supply duct, connect the oxygen rich gas electricity on its trunk line of oxygen rich gas pipeline and transfer valve; Main breeze fan is connected the initial end of main its trunk line of air supply duct.Transferring valve to make the volume ratio of oxygen rich gas flow and fuel flow rate by fuel flow control valve and oxygen rich gas electricity is 8-15%.
Described oxygen rich gas surge tank comprises airtight tank body and packing layer, and described packing layer is arranged at the tank body middle part, and the tank wall bottom arranges the gas access, and side wall upper part arranges gas vent; Described tank diameter 〉=1m, tank body height 〉=2.5m.
Described water ring vacuum pump is connected with heat radiation cooling device, is used for water ring vacuum pump is carried out cooling heat dissipation.
Described heat radiation cooling device and oxygen rich gas surge tank are discharged waste water by pipeline respectively, and the valve control drain time by arranging on the pipeline.
The above-mentioned ceramic kiln oxygen-enriched combustion-supporting of the utility model energy saver operation principle is as follows:
Oxygen-enriched membrane component (membrane stack): use on-the-spot plan-position to stack membrane module according to technological project, but horizontal layout also can upwards be piled up.
Water ring vacuum pump: adopt the vacuum drawn mode, send into the oxygen rich gas surge tank after the oxygen rich gas enrichment with membrane stack.
Oxygen rich gas surge tank: in the time of the enrichment of oxygen rich gas process water ring vacuum pump, the oxygen rich gas water content is very high, after entering the oxygen rich gas surge tank from the gas access of oxygen rich gas surge tank, because the design of tank body volume is bigger, the speed of oxygen rich gas reduces, oxygen rich gas removes the water in the oxygen rich gas after by packing layer in addition, oxygen rich gas after the dehydration enters booster fan from the gas vent of tank body, the water of separating is discharged (tank base is established outlet, and outlet connects the pipeline that is used for draining) from the pipeline of tank base.
Booster fan: the oxygen rich gas pressure that comes out from the oxygen rich gas surge tank is lower, can not overcome the resistance in the follow-up flow process, therefore after carrying out supercharging by booster fan, improving oxygen rich gas pressure (oxygen rich gas pressure is consistent with fuel gas pressure) can enter the two premixed in fuel conduit of burner body leading portion at fuel gas.
Ceramic kiln can be Industrial Stoves such as tunnel cave, roller kilns or shuttle kiln.
Advantage of the present utility model and beneficial effect are as follows:
1, the utility model device makes oxygen rich gas (oxygen rich gas pressure is identical with fuel (natural gas) pressure) after enrichment, supercharging, delivering to burner body leading portion (i.e. the front position of close burner body) converges with fuel conduit again, improve the oxygen rich gas result of use to greatest extent, reach energy-conservation and the environmental protection purpose.
2, oxygen enrichment pipeline in the utility model device, main air-supply pipeline are equipped with the keying control valve respectively, open and close control valve under the situation about requiring in different process atmosphere and process time, realize that finally oxygen enrichment is used for energy-conservation and satisfies the purpose of technological requirement.
3, membrane stack can be put according to on-the-spot physical device land area situation accumulation according to building block system in the utility model device.
4, the oxygen rich gas that comes out through water ring vacuum pump in the prior art, carry out carbonated drink respectively through water separator and gas buffer successively and separates buffering with gas, the designed oxygen rich gas surge tank of the utility model realizes simultaneously that then the carbonated drink of oxygen rich gas is separated and the effect of buffering, that is: the gas that comes out through water ring vacuum pump has a certain amount of water, after this part gas enters the oxygen rich gas surge tank, when flow reduces also with the moisture removal in the gas.This design had both been saved floor space than prior art, saved equipment manufacturing cost again.
5, enter the burner body again behind oxygen rich gas and the fuel premix in the utility model device, this kind gas is sent into mode and is suitable for Industrial Stoves such as tunnel cave, roller kilns, shuttle kiln.
6, the utility model uses oxygen rich gas instead of part air according to stove atmosphere characteristics in the ceramic sintering process, can obviously reduce the fume emission heat loss simultaneously, saves the energy.The utility model uses oxygen-enriched combustion technology can accomplish that synthesis energy saving is more than 10%.
7, the utility model proposes and adopt the film oxygen enriching combustion supporting technology as a kind of saving energy in kiln technology, be specifically designed to the reducing energy consumption in fields such as ceramic kiln, using oxygen-enriched combusting air-supply technology simultaneously, optimize the kiln burning system by improving burner structure, by control combustion-supporting gas and flow fuel ratio (oxygen rich gas flow and fuel flow rate volume ratio are 8-15%), guaranteeing under the constant situation of former sintering process curve, improve ceramics furnace kiln temperature distributing homogeneity simultaneously, reduce fuel and used total amount, reduced the total emission volumn of CO and nitrogen oxide in the tail flue gas simultaneously.This technology has not only solved energy-saving and cost-reducing problem, and main is also to have improved ceramic fresh water (FW) product and the product quality that waits the industrial furnace product by implementing the oxygen enrichment energy saving technical reconstruction.
Description of drawings
Fig. 1 is the utility model ceramic kiln oxygen-enriched combustion-supporting energy saver structural representation.
Fig. 2 is the structural representation of burner in the utility model ceramic kiln oxygen-enriched combustion-supporting energy saver.
Fig. 3 is the perspective view of a burner body of burner in the utility model.
Fig. 4 is oxygen rich gas surge tank structural representation in the utility model.
Wherein: the 1-oxygen-enriched membrane component; The 2-water ring vacuum pump; 3-oxygen rich gas surge tank; The 31-tank body; The 32-packing layer; The 33-gas vent; The 34-gas access; The 4-booster fan; The 5-ceramic kiln; 6-master's breeze fan; The 7-burner; 71-oxygen rich gas pipeline; 72-master's air supply duct; The 73-fuel conduit; 8-burner body; 81-oxygen rich gas electricity is transferred valve; 82-master's air supply duct electricity is transferred valve; The 83-burner nozzle; The 9-trench; The 10-tubing pump; The 11-valve; The 12-heat radiation cooling device;
The specific embodiment
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Shown in Fig. 1-4, the utility model ceramic kiln oxygen-enriched combustion-supporting energy saver comprises oxygen-enriched membrane component 1, water ring vacuum pump 2, oxygen rich gas surge tank 3, booster fan 4 and the burner 7 that links to each other successively; Described burner 7 comprises burner body 8, main air supply duct 72, fuel conduit 73 and burner nozzle 83, wherein: the end sealing of described burner body 8, the other end connects burner nozzle 83, burner body 83 can be for a plurality of, and fuel conduit 73 is connected with each burner body 83 respectively with main air supply duct 72; Described booster fan 4 connects fuel conduit 73 by oxygen rich gas pipeline 71, and main air supply duct 72 connects main breeze fan 6.
Described fuel conduit 73, main air supply duct 72 and oxygen rich gas pipeline 71 all are made up of trunk line and lateral, and fuel conduit 73 is connected each burner body 8 by each lateral respectively with main air supply duct 72; Booster fan 4 connects the trunk line of oxygen rich gas pipeline 71, and each lateral by oxygen rich gas pipeline 71 is connected with each lateral of fuel conduit 73 respectively again, improves the oxygen rich gas result of use to greatest extent.
Be connected to fuel flow control valve on the trunk line of described fuel conduit 73, be used for fuel metering (combustion gas or fuel oil) flow, connect main air supply duct electricity on the trunk line of main air supply duct 72 and transfer valve 82, be used for regulating air flow rate; Connect the oxygen rich gas electricity on oxygen rich gas pipeline 71 its trunk lines and transfer valve 81, can open and close and regulate the flow of oxygen rich gas; Main breeze fan 6 is connected the initial end of main air supply duct 72 its trunk lines.
Described oxygen rich gas surge tank 3 comprises airtight tank body 31 and packing layer 32, and described packing layer 32 is arranged at tank body 31 middle parts, and tank body 31 lower sidewall arrange gas access 34, and side wall upper part arranges gas vent 33; Described tank body 31 diameters 〉=1m, tank body 31 height 〉=2.5m.
Described water ring vacuum pump 2 is connected with heat radiation cooling device 12, is used for water ring vacuum pump is carried out cooling heat dissipation.
Described heat radiation cooling device 12 enters trench 9 by the pipeline that valve 11 is installed with waste water, carbonated drink is separated and oxygen rich gas surge tank 3 enters trench 9 by the pipeline that valve 11 and tubing pump 10 are installed with waste water, and the valve 11 that arranges on the pipeline can regularly be opened waste discharge.
Example 1
A 1.5m
3The pottery shuttle kiln, designing specified general power is 300,000 kilocalories, is divided into two burners.The flow through oxygen concentration of the oxygen rich air that detached by water ring vacuum pump behind the oxygen-enriched membrane component of air is the 25-30%(volume content).Gas flow average out to 28-35m
3/ h, fuel burner nozzle supply air line internal diameter is 24mm, mixing combustion oxygen rich gas supply air line internal diameter is 8mm.Under the situation that gas supply pressure and oxygen rich gas supply gas pressure are equal to, guaranteeing to realize that finally synthesis energy saving is more than 10% under the constant situation of former sintering process curve.
Example 2
, 48 m long ceramic tunnel caves, designing specified general power is 2,000,000 kilocalories, is furnished with 40 burners altogether.Wherein increase oxygen-enriched combustion-supporting technology at 10 pipelines of being furnished with 60,000 kilocalorie burners.The flow through oxygen concentration of the oxygen rich air that detached by water ring vacuum pump behind the oxygen-enriched membrane component of air is the 25-30%(volume content).Gas supply pipeline internal diameter 35mm wherein, mixing combustion oxygen rich gas supply air line internal diameter is 12mm; Under the situation that gas supply pressure and oxygen rich gas supply gas pressure are equal to, guaranteeing to realize that finally synthesis energy saving is more than 8% under the constant situation of former sintering process curve.
Claims (8)
1. ceramic kiln oxygen-enriched combustion-supporting energy saver is characterized in that: this device comprises oxygen-enriched membrane component, water ring vacuum pump, oxygen rich gas surge tank, booster fan and the burner that links to each other successively; Described burner comprises burner body, main air supply duct, fuel conduit and burner nozzle, wherein: the end sealing of described burner body, the other end connects burner nozzle, and the burner body is a plurality of; Described booster fan connects main air supply duct by the oxygen rich gas pipeline, and fuel conduit is connected with each burner body respectively with main air supply duct; Main air supply duct connects main breeze fan.
2. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 1, it is characterized in that: described fuel conduit, main air supply duct and oxygen rich gas pipeline all are made up of trunk line and lateral, and fuel conduit is connected each burner body by each lateral respectively with main air supply duct; Booster fan connects the trunk line of oxygen rich gas pipeline, and each lateral of oxygen rich gas pipeline is distinguished corresponding connection with each lateral of fuel conduit.
3. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 2, it is characterized in that: be connected to fuel flow control valve on the trunk line of described fuel conduit, connect main air supply duct electricity on the trunk line of main air supply duct and transfer valve, connect the oxygen rich gas electricity on its trunk line of oxygen rich gas pipeline and transfer valve; Main breeze fan is connected the initial end of main its trunk line of air supply duct.
4. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 1, it is characterized in that: described oxygen rich gas surge tank comprises airtight tank body and packing layer, described packing layer is arranged at the tank body middle part, and the tank wall bottom arranges the gas access, and side wall upper part arranges gas vent.
5. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 4 is characterized in that: described tank diameter 〉=1m, tank body height 〉=2.5m.
6. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 1, it is characterized in that: described water ring vacuum pump is connected with heat radiation cooling device, is used for water ring vacuum pump is carried out cooling heat dissipation.
7. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 6, it is characterized in that: described heat radiation cooling device and oxygen rich gas surge tank are discharged waste water by pipeline respectively, and the valve control drain time by arranging on the pipeline.
8. ceramic kiln oxygen-enriched combustion-supporting energy saver according to claim 1, it is characterized in that: this device is suitable for tunnel cave, roller kilns, shuttle kiln or Industrial Stoves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200897287U CN203190442U (en) | 2013-02-27 | 2013-02-27 | Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200897287U CN203190442U (en) | 2013-02-27 | 2013-02-27 | Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190442U true CN203190442U (en) | 2013-09-11 |
Family
ID=49107298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200897287U Expired - Lifetime CN203190442U (en) | 2013-02-27 | 2013-02-27 | Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791490A (en) * | 2014-02-25 | 2014-05-14 | 武汉理工大学 | Oxygen-enriched atmosphere ceramic sintering system and ceramic sintering method |
| CN104006405A (en) * | 2013-02-27 | 2014-08-27 | 唐山纳川节能设备制造有限公司 | Ceramic kiln oxygen enrichment combustion supporting and energy saving device |
-
2013
- 2013-02-27 CN CN2013200897287U patent/CN203190442U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006405A (en) * | 2013-02-27 | 2014-08-27 | 唐山纳川节能设备制造有限公司 | Ceramic kiln oxygen enrichment combustion supporting and energy saving device |
| CN103791490A (en) * | 2014-02-25 | 2014-05-14 | 武汉理工大学 | Oxygen-enriched atmosphere ceramic sintering system and ceramic sintering method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203949519U (en) | A kind of biological fuel gas Industrial Stoves combustion system with flue gas waste heat-recovering | |
| CN104006405A (en) | Ceramic kiln oxygen enrichment combustion supporting and energy saving device | |
| CN203190442U (en) | Oxygen enrichment combustion-supporting energy-saving device of ceramic kiln | |
| CN201237450Y (en) | Waste heat recovery and utilization apparatus of ceramic roller kiln | |
| CN105333728A (en) | Modular ceramic kiln energy-saving system of combined biomass gasifier | |
| CN202692019U (en) | Flue gas waste heat recycling system of steam boiler | |
| CN103968409A (en) | High-temperature low-oxygen combustion device | |
| CN203784990U (en) | High-temperature low-oxygen combustion apparatus | |
| CN102062394A (en) | Intensive oxygen enriched supply device for implementing oxygen enriched combustion of heating furnace | |
| CN104649600A (en) | Rotary cement kiln oxygen-enriched calcining device and rotary cement kiln oxygen-enriched calcining process | |
| CN203177200U (en) | Cement kiln oxygen-enriched combustion-supporting system | |
| CN204574465U (en) | A kind of novel biomass boiler | |
| CN203323180U (en) | Boiler device using saw dust renewable energy as fuel | |
| CN202171254U (en) | Air supplying and smoke discharging device of boiler | |
| CN203116001U (en) | Low nitrogen powder fuel combustor | |
| CN203431936U (en) | Furnace with secondary combustion chamber | |
| TWI821937B (en) | Furnaces and methods for smelting metal charges | |
| CN2874293Y (en) | Coal powder boiler high temperature air ignitor | |
| CN203489304U (en) | Preheater system of pulverized coal boiler | |
| CN202522092U (en) | Kiln residual heat utilization energy saving device | |
| CN204298262U (en) | A kind of lime boiler-turbine CCS local oxygen-rich combustion-supporting system | |
| CN215676370U (en) | Furnace for melting metal charge | |
| CN205174429U (en) | Biomass briquette fuel flue -cured tobacco stove level four air inlet system | |
| CN201212780Y (en) | Novel energy saving system for ceramic kiln | |
| CN204187611U (en) | Multichannel cement oxygen enrichment low NO |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063000 Times Star City Apartment A506-2, 166 North Construction Road, Lubei District, Tangshan City, Hebei Province Patentee after: TANGSHAN NACHUAN OXYGEN RICH ENERGY SAVING TECH Co.,Ltd. Address before: 063000 Times Star City Apartment A506-2, 166 North Construction Road, Lubei District, Tangshan City, Hebei Province Patentee before: TANGSHAN NACHUAN OXYGEN RICH ENERGY SAVING TECH DEVELOPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 063000 Times Star City Apartment A506-2, 166 North Construction Road, Lubei District, Tangshan City, Hebei Province Patentee after: TANGSHAN NACHUAN OXYGEN RICH ENERGY SAVING TECH DEVELOPMENT Co.,Ltd. Address before: 063000 No. 99 Jianbei Road, Tangshan High-tech Zone, Hebei Province Patentee before: TANGSHAN NACHUAN ENERGY SAVING EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190613 Address after: West Side of Yingbin Road, Fengnan Economic Development Zone, Tangshan City, Hebei Province Patentee after: Tangshan Xinwang Oxygen-enriched Energy Conservation and Environmental Protection Technology Co.,Ltd. Address before: 063000 Times Star City Apartment A506-2, 166 North Construction Road, Lubei District, Tangshan City, Hebei Province Patentee before: TANGSHAN NACHUAN OXYGEN RICH ENERGY SAVING TECH Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |