CN216662490U - Closed combined type sludge phosphorus recovery system - Google Patents
Closed combined type sludge phosphorus recovery system Download PDFInfo
- Publication number
- CN216662490U CN216662490U CN202220321466.1U CN202220321466U CN216662490U CN 216662490 U CN216662490 U CN 216662490U CN 202220321466 U CN202220321466 U CN 202220321466U CN 216662490 U CN216662490 U CN 216662490U
- Authority
- CN
- China
- Prior art keywords
- phosphorus
- pipe
- pool
- water
- sludge
- 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.)
- Active
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a closed combined type phosphorus sludge recovery system which comprises a phosphorus sludge pool, a phosphorus sludge revolving pot, a condensing tower, a phosphorus collecting pool and a flue gas treatment device, wherein the phosphorus sludge revolving pot is arranged on one side of the phosphorus sludge pool, the condensing tower is arranged on one side of the phosphorus sludge revolving pot, the phosphorus collecting pool is arranged on one side of the condensing tower, the flue gas collection treatment device is arranged on one side of the phosphorus collecting pool, and the flue gas collection treatment device comprises a cooling gas washing room, a circulating water pool and a water cooling tower; the utility model realizes the high-efficiency recovery and utilization of the phosphorus sludge by combining the phosphorus sludge pool, the phosphorus sludge rotary pot, the condensing tower and the phosphorus collecting pool, and the tail gas of the electric furnace yellow phosphorus is used as a heating source, and the tail gas combustion is used for replacing the original raw coal as fuel, thereby saving the raw coal and reducing the pollution of the raw coal combustion to the atmosphere; through setting up the flue gas collection processing apparatus, can collect the processing to gas such as flue gas, steam that the mud phosphorus recovery process produced, effectively reduce the pollution to the environment, improve the operating environment in workshop.
Description
Technical Field
The utility model relates to the technical field of sludge phosphorus recovery, in particular to a closed combined sludge phosphorus recovery system.
Background
Yellow phosphorus generally refers to white phosphorus, which is a simple substance of phosphorus and has a chemical formula of P4. The appearance was white or pale yellow translucent solid. Soft, brittle in cold, and deep in color. The exposure to air produces green phosphorescence and white smoke in the dark. The fire was about 40 ℃ in humid air and slightly higher in dry air.
In the industrial production of yellow phosphorus, about 10 percent of mud phosphorus is discharged as industrial waste, the mud phosphorus is a byproduct formed in the production process of the yellow phosphorus and mixed with impurities, and the main components of the mud phosphorus comprise 9 to 50 percent of phosphorus, 1 to 5 percent of solid impurities and 45 to 90 percent of water. In the phosphorus sludge, phosphorus is wrapped by solid particles with high adsorption capacity and forms an emulsion together with water, dipolar molecules of phosphorus and water are wrapped mutually at high temperature, a solvated film protective layer is formed on the surface of the phosphorus through the hydration of substances such as silicon, iron, calcium and the like and dust, the protective layer prevents yellow phosphorus particles from mutual contact and condensation, the phosphorus is difficult to separate from other impurities, the recovery of the phosphorus in the phosphorus sludge is difficult, the phosphorus sludge contains some highly toxic phosphide, the environment is seriously polluted without proper treatment, and the phosphorus sludge has long been a big problem in the production of the yellow phosphorus.
At present, bituminous coal or white coal is used as a heat source for sludge phosphorus recovery, a heating furnace is a fixed heating furnace, sludge phosphorus in the heating furnace is slowly heated, generated phosphorus steam is absorbed by water in a tank to recover yellow phosphorus, the once absorption effect is poor, the environmental pollution is serious after the discharge, and coal is used for heating a kettle body, so that the recovery cost is high, the pollution is serious, the service life of kettle body equipment is short, the labor intensity is high, the recovery efficiency is low, and the use effect is not ideal.
Disclosure of Invention
In order to solve the problems, the utility model provides the combined type sludge phosphorus recovery system which has a good recovery effect and can effectively reduce environmental pollution.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a confined combination formula phosphorus sludge recovery system, includes phosphorus sludge pool, phosphorus sludge transfer pot, condensing tower, receipts phosphorus pool and flue gas processing apparatus, the top in phosphorus sludge pool is equipped with the apron, and the bottom is equipped with the blow off pipe, phosphorus sludge transfer pot sets up in one side in phosphorus sludge pool, and phosphorus sludge transfer pot includes rotary kettle, rotating electrical machines and fires burning furnace, the below is equipped with the tail gas pipe in the burning furnace, and the tracheal inlet end of tail gas communicates with the gas-supply pipe in electric stove workshop mutually, and the end of giving vent to anger is located the burning furnace and port department is equipped with the air nozzle, still is equipped with tolerance governing valve and ignition on the tail gas pipe.
The rotary pot is a hollow cylinder placed at a side position, one end face of the rotary pot is of an open structure, a sealing cover is arranged at an opening of the rotary pot and is connected with the opening of the rotary pot through a bearing sealing ring, a positioning shaft and an active rotating shaft are respectively arranged on the sealing cover of the rotary pot and the other end face of the rotary pot and are movably connected with the upper portion inside the combustion furnace through shafts at two ends, the rotating motor is arranged outside the combustion furnace, and the output end of the rotating motor is connected with the active rotating shaft on the rotary pot.
The phosphorus mud pool is connected with the rotary pot through a phosphorus conveying pipeline, a suction pump is arranged on the phosphorus conveying pipeline, and the phosphorus conveying pipe penetrates through the combustion furnace and then is communicated with the inside of the rotary pot after penetrating through a sealing cover below the positioning shaft of the rotary pot.
The condensing tower sets up in one side of phosphorus mud revolving pan, and the tower body of condensing tower is the cylinder structure, and the condensing tower bottom is equipped with the discharging pipe that is equipped with the valve, has seted up intake pipe and outlet duct on the global upper portion respectively, and the inside water smoke shower nozzle that is equipped with of condensing tower, the quantity of water smoke shower nozzle be a plurality of, set up respectively on the top and the perisporium of condensing tower, through defeated water piping connection between each water smoke shower nozzle.
The rotary pot is connected with the condensing tower through a phosphorus pipeline, one end of the phosphorus pipeline is communicated with the sealing cover above the positioning shaft of the rotary pot, and the other end of the phosphorus pipeline is communicated with the air inlet pipe of the condensing tower.
Receive the phosphorus pond and set up in condensing tower one side, and be connected through the discharging pipe of material pipe with the condensing tower, receive the top in phosphorus pond and be equipped with the apron, the bottom is equipped with the blow off pipe.
The utility model discloses a phosphorus pond, including the phosphorus pond of receiving, smoke collection and treatment device sets up in receipts phosphorus pond one side, and smoke collection and treatment device includes cooling gas washing room, circulating water pool and cooling tower, the top in cooling gas washing room is equipped with the inlet tube, and the bottom is equipped with the outlet pipe, and the one end of inlet tube is gone into and is gone out in the cooling gas washing room, and is equipped with a plurality of sprinkler bead on the outlet pipe, is equipped with the exhaust tube on the side in cooling gas washing room, and the exhaust tube is equipped with air exhaust fan, is equipped with the pipeline of breathing in on the another side, and the quantity of the pipeline of breathing in is three to be connected with the phosphorus pond, fires burning furnace and receipts phosphorus pond switch-on respectively.
The water outlet pipe of the cooling gas washing room is communicated with the water inlet of the circulating water pool, the water outlet of the circulating water pool is communicated and connected with the water inlet of the water cooling tower through a water pipe, and the water outlet of the water cooling tower is connected with the water inlet pipe of the cooling gas washing room.
In order to prevent the combustion furnace from scalding operators during working, a heat insulation layer is arranged on the outer cover of the combustion furnace.
In order to improve the condensation efficiency of the yellow phosphorus in the condensation tower, a trumpet-shaped nozzle is arranged at the air outlet of the air inlet pipe of the condensation tower.
In order to facilitate the cleaning of residues in the rotary pot after distillation, one side of the rotary pot is provided with a waste recovery device, the waste recovery device consists of a sludge phosphorus ash solid waste pool, a waste suction pump and a waste suction pipe, one end of the waste suction pipe is communicated with a sealing cover below a positioning shaft of the rotary pot after passing through the combustion furnace, the other end of the waste suction pipe is communicated with the sludge phosphorus ash solid waste pool, and the waste suction pump is positioned on the waste suction pipe.
Has the beneficial effects that: the utility model realizes the high-efficiency recovery and utilization of the phosphorus sludge by combining the phosphorus sludge pool, the phosphorus sludge rotary pot, the condensing tower and the phosphorus collecting pool, and saves raw coal and reduces the pollution of the raw coal to the atmosphere by adopting the yellow phosphorus tail gas of the electric furnace as a heating source and utilizing the tail gas combustion to replace the original raw coal as fuel.
And secondly, by arranging the flue gas collecting and processing device, the flue gas, water vapor and other gases generated in the mud phosphorus recovery process can be collected and processed, so that the pollution to the environment is effectively reduced, and the operation environment of a workshop is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of the structure of a phosphorus rotary kiln of the present invention.
FIG. 3 is a schematic view of a condensing tower according to the present invention.
In the figure: 1. a phosphorus sludge pool; 2. rotating the phosphorus mud into a pan; 3. a condensing tower; 4. a phosphorus collection pool; 5. rotating the pan; 6. a rotating electric machine; 7. a combustion furnace; 8. a tail gas pipe; 9. a gas quantity regulating valve; 10. an ignition device; 11. a sealing cover; 12. a phosphorus conveying pipeline; 13. a water mist spray head; 14. a phosphorus passing pipeline; 15. cooling and air washing rooms; 16. a circulating water tank; 17. a water cooling tower; 18. an air inlet pipe; 19. and an air outlet pipe.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
Example 1
As shown in fig. 1-3, a confined combination formula phosphorus mud recovery system, including phosphorus mud pond 1, phosphorus mud revolving pot 2, condensing tower 3, receipts phosphorus pond 4 and flue gas processing apparatus, the top in phosphorus mud pond 1 is equipped with the apron, and the bottom is equipped with the blow off pipe, phosphorus mud revolving pot 2 sets up in one side in phosphorus mud pond 1, and phosphorus mud revolving pot 2 includes rotary pot 5, rotating electrical machines 6 and fires burning furnace 7, it is equipped with tail gas pipe 8 to fire burning furnace 7 internal below, and the inlet end of tail gas pipe 8 is put through with the gas-supply pipe in electric stove workshop mutually, and the end department of giving vent to anger is equipped with the air nozzle in firing burning furnace 7 and the port department, still is equipped with tolerance governing valve 9 and ignition 10 on the tail gas pipe 8.
The rotary pot 5 is a hollow cylinder placed at a side position, one end face of the rotary pot 5 is of an open structure, a sealing cover 11 is arranged at an opening of the rotary pot 5, the sealing cover 11 is connected with the opening of the rotary pot 5 through a bearing sealing ring, a positioning shaft and an active rotating shaft are respectively arranged on the sealing cover 11 and the other end face of the rotary pot 5, the shafts at two ends are movably connected with the upper part inside the combustion furnace 7, the rotating motor 6 is arranged outside the combustion furnace 7, and the output end of the rotating motor 6 is connected with the active rotating shaft on the rotary pot 5.
The phosphorus mud pool 1 is connected with the rotary pot 5 through a phosphorus conveying pipeline 12, a suction pump is arranged on the phosphorus conveying pipeline 12, and the phosphorus conveying pipe penetrates through the combustion furnace 7 and then is communicated with the inside of the rotary pot 5 after penetrating through a sealing cover 11 below a positioning shaft of the rotary pot 5.
The rotary pot 5 is connected with the condensing tower 3 through a phosphorus pipeline 14, one end of the phosphorus pipeline 14 is communicated with a sealing cover 11 above a positioning shaft of the rotary pot 5, and the other end of the phosphorus pipeline is communicated with an air inlet pipe 18 of the condensing tower 3.
Receive phosphorus pond 4 and set up in condensing tower 3 one side, and be connected with condensing tower 3's discharging pipe through material pipe, receive the top in phosphorus pond 4 and be equipped with the apron, the bottom is equipped with the blow off pipe.
The processing apparatus is collected to flue gas sets up and is receiving 4 one sides in phosphorus pond, and the processing apparatus is collected to flue gas includes cooling gas washing room 15, circulating water pond 16 and cooling tower 17, the top in cooling gas washing room 15 is equipped with the inlet tube, and the bottom is equipped with the outlet pipe, and the one end of inlet tube is gone into and is gone out in cooling gas washing room 15, and is equipped with a plurality of sprinkler bead on the outlet pipe, is equipped with the exhaust tube on the side in cooling gas washing room 15, and the exhaust tube is equipped with air exhaust fan, is equipped with the pipeline of breathing in on the another side, and the quantity of the pipeline of breathing in is three to be connected with phosphorus mud pond 1, fire burning furnace 7 and receipts phosphorus pond 4 switch-on respectively.
The water outlet pipe of the cooling gas washing room 15 is communicated with the water inlet of the circulating water tank 16, the water outlet of the circulating water tank 16 is communicated with the water inlet of the water cooling tower 17 through a water pipe, and the water outlet of the water cooling tower 17 is connected with the water inlet pipe of the cooling gas washing room 15.
Example 2
Detailed description of the preferred embodimentsa difference to example 1 is that: and a heat insulation layer is arranged on the outer cover of the combustion furnace 7.
And a horn-shaped nozzle is arranged at the air outlet of the air inlet pipe 18 of the condensing tower 3.
The waste recovery device is arranged on one side of the rotary pot 5 and consists of a solid waste pond of the phosphorus sludge ash, a waste suction pump and a waste suction pipe, one end of the waste suction pipe penetrates through the combustion furnace 7 and then is communicated with a sealing cover 11 below the positioning shaft of the rotary pot 5, the other end of the waste suction pipe is communicated with the solid waste pond of the phosphorus sludge ash, and the waste suction pump is positioned on the waste suction pipe.
The working principle is as follows: during operation, the phosphorus sludge is transported and then put into a phosphorus sludge pool, then the phosphorus sludge is loaded into a rotating pan of a phosphorus sludge rotating pan by a pump, tail gas is conveyed from an electric furnace workshop, the tail gas is ignited at the rotating pan of a combustion furnace by a vacuum pump, phosphorus steam enters a condensing tower through a phosphorus passing pipeline to be cooled and collected into yellow phosphorus, the collected yellow phosphorus is loaded into a phosphorus collecting pool, and the yellow phosphorus is loaded into a tank car by the pump after reaching a certain amount and is transported to a fine phosphorus workshop to be metered and recycled.
Flue gas generated by burning the mud phosphorus rotary pot, flue gas in a mud phosphorus pool and water vapor in a phosphorus collection pool enter a flue gas suction pipeline in a negative pressure state generated by an air exhaust fan, enter a spraying cooling steam washing room through a pipeline for washing and cooling, and then are emptied. And (4) the washed sewage flows to a circulating water pool, enters a water cooling tower through a circulating water pump to be cooled, and then the circulating water is reused. And uniformly pumping and stacking the distilled residues in the rotary pot into a sludge phosphorus ash solid waste pool.
Claims (4)
1. The utility model provides a confined combination formula phosphorus sludge recovery system, includes phosphorus sludge pool (1), phosphorus sludge transfer pot (2), condensing tower (3), receipts phosphorus pool (4) and flue gas processing apparatus, its characterized in that: the device is characterized in that a cover plate is arranged at the top of the phosphorous sludge pool (1), a blow-off pipe is arranged at the bottom of the phosphorous sludge pool, the phosphorous sludge transfer pot (2) is arranged on one side of the phosphorous sludge pool (1), the phosphorous sludge transfer pot (2) comprises a rotary pot (5), a rotary motor (6) and a combustion furnace (7), a tail gas pipe (8) is arranged below the combustion furnace (7), the gas inlet end of the tail gas pipe (8) is communicated with a gas pipe of an electric furnace workshop, the gas outlet end is positioned in the combustion furnace (7), a gas nozzle is arranged at the port of the gas outlet end, and a gas quantity regulating valve (9) and an ignition device (10) are further arranged on the tail gas pipe (8);
the rotary boiler (5) is a hollow cylinder placed at a side position, one end face of the rotary boiler (5) is of an open structure, a sealing cover (11) is arranged at an opening, the sealing cover (11) is connected with the opening of the rotary boiler (5) through a bearing sealing ring, a positioning shaft and an active rotating shaft are respectively arranged on the sealing cover (11) and the other end face of the rotary boiler (5) and are movably connected with the upper part of the interior of the combustion furnace (7) through shafts at two ends, the rotary motor (6) is arranged outside the combustion furnace (7), and the output end of the rotary motor (6) is connected with the active rotating shaft on the rotary boiler (5);
the phosphorus mud pool (1) is connected with the rotary pot (5) through a phosphorus conveying pipeline (12), a suction pump is arranged on the phosphorus conveying pipeline (12), and the phosphorus conveying pipe penetrates through the combustion furnace (7) and then is communicated with the inside of the rotary pot (5) after penetrating through a sealing cover (11) below a positioning shaft of the rotary pot (5);
the device comprises a condensing tower (3), a cylindrical structure, a discharge pipe, an air inlet pipe (18) and an air outlet pipe (19), a plurality of water mist spray heads (13), a water pipe and a water pipe, wherein the condensing tower (3) is arranged on one side of a mud phosphorus rotary pot (2), the tower body of the condensing tower (3) is of a cylindrical structure, the bottom end of the condensing tower (3) is provided with the discharge pipe provided with a valve, the peripheral surface of the upper part of the condensing tower is respectively provided with the air inlet pipe (18) and the air outlet pipe (19), the water mist spray heads (13) are arranged inside the condensing tower (3) and are respectively arranged on the top part and the peripheral wall of the condensing tower (3), and the water mist spray heads (13) are connected through the water pipe;
the rotary pot (5) is connected with the condensing tower (3) through a phosphorus pipeline (14), one end of the phosphorus pipeline (14) is communicated with a sealing cover (11) above a positioning shaft of the rotary pot (5), the other end of the phosphorus pipeline is communicated with an air inlet pipe (18) of the condensing tower (3),
the phosphorus collecting pool (4) is arranged on one side of the condensing tower (3) and is connected with a discharge pipe of the condensing tower (3) through a material pipe, a cover plate is arranged at the top of the phosphorus collecting pool (4), and a discharge pipe is arranged at the bottom of the phosphorus collecting pool;
the device comprises a cooling gas washing room (15), a circulating water tank (16) and a water cooling tower (17), wherein a water inlet pipe is arranged at the top of the cooling gas washing room (15), a water outlet pipe is arranged at the bottom of the cooling gas washing room, one end of the water inlet pipe enters and exits the cooling gas washing room (15), a plurality of water spray heads are arranged on the water outlet pipe, an exhaust pipe is arranged on one side surface of the cooling gas washing room (15), an exhaust fan is arranged on the exhaust pipe, an air suction pipeline is arranged on the other side surface of the exhaust pipe, and the three air suction pipelines are respectively communicated with the phosphorus sludge pool (1), the combustion furnace (7) and the phosphorus collecting pool (4);
the water outlet pipe of the cooling gas washing room (15) is communicated with the water inlet of the circulating water tank (16), the water outlet of the circulating water tank (16) is communicated and connected with the water inlet of the water cooling tower (17) through a water pipe, and the water outlet of the water cooling tower (17) is connected with the water inlet pipe of the cooling gas washing room (15).
2. The closed combined sludge phosphorus recovery system as claimed in claim 1, wherein: and a heat insulation layer is arranged on the outer cover of the combustion furnace (7).
3. A closed combined sludge phosphorus recovery system as claimed in claim 1 or 2, wherein: and a horn-shaped nozzle is arranged at the air outlet of the air inlet pipe (18) of the condensing tower (3).
4. The closed combined sludge phosphorus recovery system as claimed in claim 1, wherein: the waste recovery device is arranged on one side of the rotary pot (5) and consists of a solid waste mud phosphorus ash pool, a waste suction pump and a waste suction pipe, one end of the waste suction pipe penetrates through the combustion furnace (7) and then is communicated with a sealing cover (11) below the positioning shaft of the rotary pot (5), the other end of the waste suction pipe is communicated with the solid waste mud phosphorus ash pool, and the waste suction pump is positioned on the waste suction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220321466.1U CN216662490U (en) | 2022-02-17 | 2022-02-17 | Closed combined type sludge phosphorus recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220321466.1U CN216662490U (en) | 2022-02-17 | 2022-02-17 | Closed combined type sludge phosphorus recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216662490U true CN216662490U (en) | 2022-06-03 |
Family
ID=81763334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220321466.1U Active CN216662490U (en) | 2022-02-17 | 2022-02-17 | Closed combined type sludge phosphorus recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216662490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099865A (en) * | 2023-02-16 | 2023-05-12 | 会东金川磷化工有限责任公司 | Yellow phosphorus mud phosphorus extraction device and method |
-
2022
- 2022-02-17 CN CN202220321466.1U patent/CN216662490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099865A (en) * | 2023-02-16 | 2023-05-12 | 会东金川磷化工有限责任公司 | Yellow phosphorus mud phosphorus extraction device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110813000A (en) | Quenching oil fume waste gas treatment and collection process | |
| CN216662490U (en) | Closed combined type sludge phosphorus recovery system | |
| CN113577944A (en) | Cleaning device is collected to impurity in boiler waste gas | |
| CN210544082U (en) | Heat exchange type waste heat recovery and waste gas purification device | |
| CN108726614A (en) | A kind of industrial waste treatment process and its device | |
| CN105889986A (en) | Gas cooking stove purifying lampblack through heat power | |
| CN109775785A (en) | A kind of high-salt wastewater burns desalting system and its processing method | |
| CN208732658U (en) | A kind of industrial waste processing unit | |
| CN102320711B (en) | Environmental-protection resource sludge treatment system | |
| CN202151545U (en) | Environment-friendly, energy-saving and efficient multi-stage dust remover | |
| CN109764344B (en) | Comprehensive treatment system for asphalt smoke | |
| CN205002365U (en) | Energy -saving and environment -friendly boiler | |
| CN107245343A (en) | A kind of coke wet quenching high temperature steam treatment method | |
| CN217763471U (en) | Volatile organic waste gas purifying and incinerating device | |
| CN215692838U (en) | Fly ash separating device with self-ash-removing function | |
| CN207162578U (en) | A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears | |
| CN211636017U (en) | Offset printing technology VOC processing apparatus | |
| CN109775786A (en) | A kind of high-salt wastewater burns desalting system and its processing method | |
| CN114110604A (en) | Pyrolysis method based on full-automatic garbage pyrolysis system | |
| CN210664089U (en) | Dust removal desulfurization and waste heat recovery heating system for hot air coal slime drying tail gas | |
| CN201165514Y (en) | Negative-pressure type energy-saving environment-protective coal gas producer and coal gas purifier | |
| CN212640249U (en) | Sludge dewatering mummification handles waste gas utilization equipment | |
| CN112370919A (en) | Boiler flue gas waste heat recovery utilizes system | |
| CN112229190A (en) | Intermediate speed dryer for ceramic body | |
| CN202201784U (en) | Environmental-protection recycling sludge treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |