CN202146717U - Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants - Google Patents

Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants Download PDF

Info

Publication number
CN202146717U
CN202146717U CN201120225449U CN201120225449U CN202146717U CN 202146717 U CN202146717 U CN 202146717U CN 201120225449 U CN201120225449 U CN 201120225449U CN 201120225449 U CN201120225449 U CN 201120225449U CN 202146717 U CN202146717 U CN 202146717U
Authority
CN
China
Prior art keywords
activated coke
links
adsorption tower
storage tank
ammonia
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
Application number
CN201120225449U
Other languages
Chinese (zh)
Inventor
马春元
张立强
宋占龙
崔琳
董勇
陈磊
李兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Xiang Huan Environmental Protection Engineering Co. Ltd.
Original Assignee
Shandong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong University filed Critical Shandong University
Priority to CN201120225449U priority Critical patent/CN202146717U/en
Application granted granted Critical
Publication of CN202146717U publication Critical patent/CN202146717U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model relates to an activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants. A pulverized coal storage tank is connected with a carbonization activation furnace through a pulverized coal bunker pump, the lower end of the carbonization activation furnace is connected with a coal burning smoke outlet in the coal fired power plant or a high-temperature smoke outlet of a boiler, the upper end of the carbonization activation furnace is connected with a separator, the lower end of the separator is connected with an activated coke storage tank by a cooler I and an activated coke bunker pump II, the upper end of the separator is connected with the boiler through a pyrolysis gas conveying fan, an activated coke storage tank is connected with an adsorption tower, the lower part of the adsorption tower is connected with the smoke outlet of the boiler through a dust pre-removing device, an ammonia gas nozzle and a water nozzle connected with an ammonia conveying device and a water spraying device outside the adsorption tower respectively is arranged in the adsorption tower, the smoke outlet at the upper part of the adsorption tower is connected with a chimney through a bag-type dust collector and a draught fan, the bag-type dust collector is respectively connected with a screw feeder and a regenerating furnace, the screw feeder is connected with the adsorption tower, and a regenerating tower is respectively connected with the activated coke storage tank and the boiler through a cooler II and an activated coke bunker pump I.

Description

Coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system
Technical field
The utility model relates to a kind of smoke pollution improvement technology, especially a kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system.
Background technology
Problems such as atmosphere pollution that present coal-fired plant boiler discharged flue gas pollutant causes and acid rain are very serious, caused enormous economic loss, and the discharging of control flue gas pollutant is imperative.At present domestic power plant is generally adopted limestone/gypsum wet process of FGD technology and circulating fluid bed semi-drying method flue gas desulfurization technology.These two kinds of desulfur technologies all with calcium-base absorbing agent (calcium carbonate, calcium oxide or calcium hydroxide) as desulfurizing agent, need to consume a large amount of calcium carbonate resources, cause limestone resource to exploit in a large number, and desulfurization discharges great amount of carbon dioxide, influence ecological environment simultaneously; And owing to reasons such as the quality of desulfurization product, output, the application of desulfurization product also receives than limitations, causes most desulfurization products to be abandoned, and causes new pollution.
Active carbon (activated coke) is a kind of good adsorbent and catalyst owing to have unique pore structure and higher chemical stability and advantages such as heat endurance, hydrophobicity, supported catalyst ability and reusable edible.Therefore active carbon (activated coke) method desulphurization denitration technology has become research focus in recent years, and in industry, obtains promotion and application.Present most widely used active carbon desulfurization denitrating technique adopts fixed bed or moving bed adsorption process more; The active carbon utilization rate is low, systematic running cost is used high, shortcomings such as space hold is big, initial cost height but exist in this flow process application process, has hindered applying of active carbon desulfurization denitrating technique.Applicant's utility model a kind of fluidized activated carbon combined desulfurization and denitrification process, and applied for that in 2010 patent of invention, application number are 201010189427.2, be still the limiting factor that this invention is used but the powdered activated carbon price is more expensive.
The utility model content
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art; A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system skill is provided; This system utilizes existing boiler high temperature flue gas in coal-burning power plant and coal to produce activated coke; Realize the desulphurization denitration of flue gas and the recycling of sulfur dioxide with the self-control activated coke as absorbent and catalyst, the pyrolysis gas loopback boiler that utilizes the activated coke preparation to produce simultaneously realizes that combustion reduces discharged nitrous oxides again.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system; Comprise the coal dust storage tank; The coal dust storage tank links to each other with the carbonization-activation stove through the Pulverized Coal Bin pump of lower ends, and carbonization-activation stove lower end links to each other with the high-temperature flue gas outlet of power plant soot fume outlet or boiler, and the carbonization-activation furnace upper end links to each other with separator; The lower end of separator links to each other with the activated coke storage tank through cooler I, active coke bin pump II; The upper end of separator links to each other with boiler through pyrolysis gas conveying fan, and the activated coke storage tank links to each other with adsorption tower, and the bottom of adsorption tower links to each other with the exhanst gas outlet of boiler through pre-duster; Be provided with ammonia nozzle and (operating) water nozzle in the adsorption tower; The ammonia nozzle links to each other with water injector with the outside ammonia transport of adsorption tower respectively with (operating) water nozzle, and the exhanst gas outlet on adsorption tower top links to each other with chimney through sack cleaner, air-introduced machine, and sack cleaner links to each other with regenerating furnace with screw(-type) feeder respectively; Screw(-type) feeder links to each other with adsorption tower, and regenerator links to each other with boiler with the activated coke storage tank respectively through cooler II, active coke bin pump I.
Said ammonia transport comprises the ammonia storage tank, and the ammonia storage tank links to each other with ammonia nozzle in the adsorption tower through ammonia conveying fan, pipeline.
Said water injector comprises the technology water tank, and the technology water tank links to each other with (operating) water nozzle in the adsorption tower through water pump, pipeline.
The utility model is that prepared using coal-burning boiler high-temperature flue gas prepares powdered activated coke with the coal dust, fluidization absorption SO in adsorbent bed 2, and spray into ammonia and NO XCatalytic reduction reaction takes place, the final comprehensive purifying system of desulphurization denitration simultaneously that realizes.It utilizes power plant's pulverized coal preparation activated coke, with activated coke the removing as adsorbent and catalyst realization sulfur in smoke and nitrogen oxide of preparation.With coal-burning power plant's coal dust is raw material, and carbonization-activation obtains powdered activated coke simultaneously in activated coke preparation feedback device; Powdered activated coke is sent into the flue gas adsorption tower, under suitable temperature, adsorbs pollutants such as sulfur in smoke, mercury, and sprays into removing of ammonia and nitrogen oxide generation catalytic reduction reaction realization nitrogen oxide; Activated coke regeneration back after the absorption is reused; Activated coke was sent into boiler combustion through multiple adsorb/regeneration after losing efficacy; Activated coke regeneration behind the absorption sulfur dioxide obtains the sulfur dioxide gas of high concentration, realizes recycling.
Contain a large amount of CO, H in the waste gas that produces in the activated coke preparation feedback device of the utility model 2, CH 4Deng fuel gas gas, it as reburning fuel, is sent into the reducing zone of boiler and realize denitration by refueling.
The utility model makes full use of the purification that the existing coal resource in coal-burning power plant is realized coal-fired flue-gas, compares with traditional flue gases purification, does not need to buy separately desulfurizing agent, has realized SO 2Remove the discharging of no waste water, waste gas and solid waste with uniting of NOx; Activated coke is with SO in fluidized state and the flue gas 2Fully contact with NOx,, fully improve the utilization rate of activated coke guaranteeing to accelerate its adsorption reaction speed under the even prerequisite of bed internal temperature; Regeneration obtains the high concentration sulfur dioxide gas, realizes the recycling of sulfur dioxide.The utlity model has advantages such as gas cleaning efficient height, non-secondary pollution, resource reproducible utilization, application prospect is boundless.
Description of drawings
Fig. 1 is the utility model embodiment 1 system flow;
Fig. 2 is the utility model embodiment 2 system flow charts;
1-boiler wherein, 2-Pulverized Coal Bin pump, 3-coal dust storage tank, 4-carbonization-activation stove, 5-cooler I; 6-pyrolysis gas conveying fan, 7-separator, 8-activated coke storage tank, 9-ammonia nozzle, 10-adsorption tower; The 11-sack cleaner, 12-air-introduced machine, 13-chimney, 14-ammonia storage tank, 15-screw(-type) feeder; 16-ammonia conveying fan, 17-water pump, 18-(operating) water nozzle, 19-regenerating furnace, the active coke bin pump of 20-I; 21-cooler II, 22-technology water tank, 23-pre-duster, the active coke bin pump of 24-II, the outlet of 25-power plant soot fume.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment 1:
As shown in Figure 1; A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system comprises coal dust storage tank 3, and coal dust storage tank 3 links to each other with carbonization-activation stove 4 through the Pulverized Coal Bin pump 2 of lower ends; Carbonization-activation stove 4 lower ends link to each other with the high-temperature flue gas outlet of boiler 1; Carbonization-activation stove 4 upper ends link to each other with separator 7, and the lower end of separator 7 links to each other with activated coke storage tank 8 through cooler I5, active coke bin pump II24, and the upper end of separator 7 links to each other with boiler 1 through pyrolysis gas conveying fan 6; Activated coke storage tank 8 links to each other with adsorption tower 10; The bottom of adsorption tower 10 links to each other through the exhanst gas outlet of pre-duster 23 with boiler 1, is provided with ammonia nozzle 9 and (operating) water nozzle 18 in the adsorption tower 10, and ammonia nozzle 9 links to each other with water injector with adsorption tower 10 outside ammonia transports respectively with (operating) water nozzle 18; The exhanst gas outlet on adsorption tower 10 tops links to each other with chimney 13 through sack cleaner 11, air-introduced machine 12; Sack cleaner 11 links to each other with regenerating furnace 19 with screw(-type) feeder 15 respectively, and screw(-type) feeder 5 links to each other with adsorption tower 10, and regenerator 19 links to each other with boiler 1 with activated coke storage tank 8 respectively through cooler II21, active coke bin pump I20.
Said ammonia transport comprises ammonia storage tank 14, and ammonia storage tank 14 links to each other with ammonia nozzle 9 in the adsorption tower 0 through ammonia conveying fan 16, pipeline.
Said water injector comprises technology water tank 22, and technology water tank 22 links to each other with adsorption tower 10 interior (operating) water nozzles 18 through water pump 17, pipeline.
A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying technology may further comprise the steps:
The coal dust of coal dust storage tank 3 is compressed air and carries; Send into activated coke charing activation furnace 4 by Pulverized Coal Bin pump 2; Extract partial fume (temperature is 500-1200 ℃) as coal dust charing thermal source and activator from boiler 1 simultaneously, send into the bottom of activated coke charing activation furnace 4, flue gas carries the bottom-up motion of coal dust; Charing and priming reaction take place simultaneously, obtain powdered activated coke;
Flue gas carries activated coke and gets into separator 7 and realize gas solid separation, isolated activated coke through cooler I5 cooling after active coke bin pump II24 sends into activated coke storage tank 8 stores; Separator 7 isolated pyrolysis gas are sent into the reducing zone of boiler 1 as reburning fuel, and the NOx that main combustion zone is generated is reduced into N 2, realize that the part of NOx removes;
Get into adsorption tower 10 after flue gas process pre-duster 23 dedustings from boiler 1; With mix from the activated coke of activated coke storage tank 8, water pump 17 extracts the water in the technology water tanks 22, is sprayed in the adsorption tower 10 by (operating) water nozzle 18; Regulate the temperature of flue gas, the SO under 60-120 ℃ temperature in the flue gas 2Adsorbed by activated coke with mercury;
The ammonia that ammonia conveying fan 16 extracts in the ammonia storage tank 14 is sprayed in the adsorption tower 10 NO in the flue gas by ammonia nozzle 9 xWith the NH that sprays into 3Reaction generates N 2, realize SO in the flue gas 2And NO xRemove;
Flue gas is after sack cleaner 11 dedustings then; Send into chimney 13 dischargings by air-introduced machine 12; Activated coke part under separating is sent into the absorption that circulates in the adsorption tower 10 by screw(-type) feeder 15, and another part gets into regenerating furnace 19, obtains the gas that sulfur dioxide concentration is 20-60% after the regeneration; Realize recycling, the activated coke after the regeneration is sent into 8 recycles of activated coke storage tank by active coke bin pump I 20 after cooler II 21 coolings;
Activated coke loses absorption property after multiple adsorb/regeneration, the useless activated coke that loses absorption property is sent into boiler 1 burning, makes full use of the heat of activated coke.
Embodiment 2:
As shown in Figure 2; A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system comprises coal dust storage tank 3, and coal dust storage tank 3 links to each other with carbonization-activation stove 4 through the Pulverized Coal Bin pump 2 of lower ends; Carbonization-activation stove 4 lower ends link to each other with power plant soot fume outlet 25; Carbonization-activation stove 4 upper ends link to each other with separator 7, and the lower end of separator 7 links to each other with activated coke storage tank 8 through cooler I5, active coke bin pump II24, and the upper end of separator 7 links to each other with boiler 1 through pyrolysis gas conveying fan 6; Activated coke storage tank 8 links to each other with adsorption tower 10; The bottom of adsorption tower 10 links to each other through the exhanst gas outlet of pre-duster 23 with boiler 1, is provided with ammonia nozzle 9 and (operating) water nozzle 18 in the adsorption tower 10, and ammonia nozzle 9 links to each other with water injector with adsorption tower 10 outside ammonia transports respectively with (operating) water nozzle 18; The exhanst gas outlet on adsorption tower 10 tops links to each other with chimney 13 through sack cleaner 11, air-introduced machine 12; Sack cleaner 11 links to each other with regenerating furnace 19 with screw(-type) feeder 15 respectively, and screw(-type) feeder 5 links to each other with adsorption tower 10, and regenerator 19 links to each other with boiler 1 with activated coke storage tank 8 respectively through cooler II21, active coke bin pump I20.
Said ammonia transport comprises ammonia storage tank 14, and ammonia storage tank 14 links to each other with ammonia nozzle 9 in the adsorption tower 0 through ammonia conveying fan 16, pipeline.
Said water injector comprises technology water tank 22, and technology water tank 22 links to each other with adsorption tower 10 interior (operating) water nozzles 18 through water pump 17, pipeline.
A kind of coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying technology may further comprise the steps:
The coal dust of coal dust storage tank 3 is compressed air and carries; Send into activated coke charing activation furnace 4 by Pulverized Coal Bin pump 2; Extract partial fume (temperature is 500-1200 ℃) as coal dust charing thermal source and activator from power plant soot fume outlet 25 simultaneously, send into the bottom of activated coke charing activation furnace 4, flue gas carries the bottom-up motion of coal dust; Charing and priming reaction take place simultaneously, obtain powdered activated coke;
Flue gas carries activated coke and gets into separator 7 and realize gas solid separation, isolated activated coke through cooler I5 cooling after active coke bin pump II24 sends into activated coke storage tank 8 stores; Separator 7 isolated pyrolysis gas are sent into the reducing zone of boiler 1 as reburning fuel, and the NOx that main combustion zone is generated is reduced into N 2, realize that the part of NOx removes;
Get into adsorption tower 10 after flue gas process pre-duster 23 dedustings from boiler 1; With mix from the activated coke of activated coke storage tank 8, water pump 17 extracts the water in the technology water tanks 22, is sprayed in the adsorption tower 10 by (operating) water nozzle 18; Regulate the temperature of flue gas, the SO under 60-120 ℃ temperature in the flue gas 2Adsorbed by activated coke with mercury;
The ammonia that ammonia conveying fan 16 extracts in the ammonia storage tank 14 is sprayed in the adsorption tower 10 NO in the flue gas by ammonia nozzle 9 xWith the NH that sprays into 3Reaction generates N 2, realize SO in the flue gas 2And NO xRemove;
Flue gas is after sack cleaner 11 dedustings then; Send into chimney 13 dischargings by air-introduced machine 12; Activated coke part under separating is sent into the absorption that circulates in the adsorption tower 10 by screw(-type) feeder 15, and another part gets into regenerating furnace 19, obtains the gas that sulfur dioxide concentration is 20-60% after the regeneration; Realize recycling, the activated coke after the regeneration is sent into 8 recycles of activated coke storage tank by active coke bin pump I20 after cooler II21 cooling;
Activated coke loses absorption property after multiple adsorb/regeneration, the useless activated coke that loses absorption property is sent into boiler 1 burning, makes full use of the heat of activated coke.

Claims (3)

1. coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying system; It is characterized in that, comprise the coal dust storage tank, the coal dust storage tank links to each other with the carbonization-activation stove through the Pulverized Coal Bin pump of lower ends; Carbonization-activation stove lower end links to each other with the high-temperature flue gas outlet of power plant soot fume outlet or boiler; The carbonization-activation furnace upper end links to each other with separator, and the lower end of separator links to each other with the activated coke storage tank through cooler I, active coke bin pump II, and the upper end of separator links to each other with boiler through pyrolysis gas conveying fan; The activated coke storage tank links to each other with adsorption tower; The bottom of adsorption tower links to each other with the exhanst gas outlet of boiler through pre-duster, is provided with ammonia nozzle and (operating) water nozzle in the adsorption tower, and the ammonia nozzle links to each other with water injector with the outside ammonia transport of adsorption tower respectively with (operating) water nozzle; The exhanst gas outlet on adsorption tower top links to each other with chimney through sack cleaner, air-introduced machine; Sack cleaner links to each other with regenerating furnace with screw(-type) feeder respectively, and screw(-type) feeder links to each other with adsorption tower, and regenerator links to each other with boiler with the activated coke storage tank respectively through cooler II, active coke bin pump I.
2. coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying according to claim 1 system is characterized in that said ammonia transport comprises the ammonia storage tank, and the ammonia storage tank links to each other with ammonia nozzle in the adsorption tower through ammonia conveying fan, pipeline.
3. coal-burning power plant's pulverized coal preparation activated coke smoke comprehensive purifying according to claim 1 system is characterized in that said water injector comprises the technology water tank, and the technology water tank links to each other with (operating) water nozzle in the adsorption tower through water pump, pipeline.
CN201120225449U 2011-06-29 2011-06-29 Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants Expired - Lifetime CN202146717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120225449U CN202146717U (en) 2011-06-29 2011-06-29 Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120225449U CN202146717U (en) 2011-06-29 2011-06-29 Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants

Publications (1)

Publication Number Publication Date
CN202146717U true CN202146717U (en) 2012-02-22

Family

ID=45587794

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120225449U Expired - Lifetime CN202146717U (en) 2011-06-29 2011-06-29 Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants

Country Status (1)

Country Link
CN (1) CN202146717U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667735A (en) * 2015-01-22 2015-06-03 山东台鹰环境工程有限公司 Desulfurization and denitrification integrated purification adsorbent, adsorption equipment and adsorption method
CN105999992A (en) * 2016-06-30 2016-10-12 河南源东环保机械有限公司 Desulfurization, denitration and denitrification flue gas treatment technology of coal combustion furnace
CN108217650A (en) * 2018-02-06 2018-06-29 西南石油大学 A kind of device of preparation and absorption desulfurization for activated carbon
CN110237636A (en) * 2019-06-28 2019-09-17 浙江哲丰能源发展有限公司 A kind of power plant soot fume processor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667735A (en) * 2015-01-22 2015-06-03 山东台鹰环境工程有限公司 Desulfurization and denitrification integrated purification adsorbent, adsorption equipment and adsorption method
CN105999992A (en) * 2016-06-30 2016-10-12 河南源东环保机械有限公司 Desulfurization, denitration and denitrification flue gas treatment technology of coal combustion furnace
CN108217650A (en) * 2018-02-06 2018-06-29 西南石油大学 A kind of device of preparation and absorption desulfurization for activated carbon
CN108217650B (en) * 2018-02-06 2021-04-09 西南石油大学 Device for preparing activated carbon and performing adsorption desulfurization
CN110237636A (en) * 2019-06-28 2019-09-17 浙江哲丰能源发展有限公司 A kind of power plant soot fume processor

Similar Documents

Publication Publication Date Title
CN102350214A (en) Coal-fired power plant coal dust prepared activated coke flue gas comprehensive purification system and technology
CN205199271U (en) Middle -size and small -size coal fired boiler flue gas dedusting and desulfurizing denitration is treatment equipment in coordination
CN101785969B (en) Method of flue gas purification and system thereof
CN101856587B (en) Fluidized activated carbon combined desulfurization and denitrification process
CN102489149A (en) Flue-gas purification and reclamation system and method thereof
CN110787630A (en) Flue gas treatment device and process for semi-dry desulfurization and low-temperature SCR denitration of carbide slag
CN202146717U (en) Activated coke smoke comprehensive purification system for pulverized coal preparation in coal fired power plants
CN211886232U (en) Sodium-based dry desulfurization system applied to low-sulfur flue gas working condition
CN101791561A (en) Desulphurization and denitration catalyst and preparation method thereof
CN102772986A (en) Flue gas desulfurization and denitration integrated process
CN205730886U (en) Activated carbon/Jiao's denitration integrated device
CN202173882U (en) Device for removing sulfur dioxide and dioxin in sintering flue gas
CN109499313A (en) The low-temp desulfurization method of denitration of sintering flue gas
CN203090757U (en) Desulfurization and denitrification system for boiler smoke
CN204891598U (en) System for nitrogen oxide and oxysulfide in while desorption flue gas
CN212999279U (en) Flue gas treatment system for efficiently utilizing carbon monoxide
CN110755999B (en) Full-flow fluidized active coke demercuration recovery process and system
CN211435702U (en) Multi-pollutant integrated removing system of circulating fluidized bed boiler
CN111346605A (en) Pollutant comprehensive treatment system and method suitable for large coal-fired power plant
CN207493486U (en) A kind of desulfurization of coke oven flue gas and de-dusting de-nitration integrated
CN206304550U (en) A kind of damp dry type flue gas purifying system based on Carbon Materials oxidation and denitration
CN203090746U (en) Desulfurization and denitrification integrated device for smoke
CN110292847A (en) A kind of activated coke desulfurization denitrification integral processing system
CN202620997U (en) Integrated device for purifying flue gas generated during refuse burning
CN108499344A (en) A kind of biomass flue gas dust-removal and desulfurizing denitrating system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180613

Address after: 250002 Room 201, Ma On Shan Road, Shizhong District, Ji'nan, Shandong, China, 54

Patentee after: Shandong Xiang Huan Environmental Protection Engineering Co. Ltd.

Address before: 250061 Ji'nan Lishi District, Ji'nan, Shandong Province, No. 17923

Patentee before: Shandong University

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120222