CN221005029U - Steam generating device for yellow phosphorus tail gas combustion - Google Patents
Steam generating device for yellow phosphorus tail gas combustion Download PDFInfo
- Publication number
- CN221005029U CN221005029U CN202322472120.9U CN202322472120U CN221005029U CN 221005029 U CN221005029 U CN 221005029U CN 202322472120 U CN202322472120 U CN 202322472120U CN 221005029 U CN221005029 U CN 221005029U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- yellow phosphorus
- outer ring
- heat recovery
- phosphorus tail
- 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
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000004321 preservation Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 27
- 238000004891 communication Methods 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Air Supply (AREA)
Abstract
The utility model provides a steam generating device for yellow phosphorus tail gas combustion, which relates to the technical field of yellow phosphorus tail gas combustion recovery and utilization, and comprises an insulation box, wherein a heat recovery frame is arranged in the insulation box, the heat recovery frame comprises a first outer ring, a plurality of first connecting pipes arranged at the bottom of the first outer ring, a second outer ring is arranged at the bottom of the first connecting pipes, a plurality of second connecting pipes are uniformly arranged in the second outer ring, a first inner ring is arranged at the end face of each of the second connecting pipes, a plurality of third connecting pipes are uniformly arranged at the top of each of the first inner rings, a second inner ring is arranged at the top of each of the third connecting pipes, and an air inlet pipe for entering steam is arranged on the heat recovery frame; through the heat recovery frame, increase heat exchange's area, promote heat utilization efficiency.
Description
Technical Field
The utility model relates to the technical field of recovery and utilization of yellow phosphorus tail gas combustion, in particular to a steam generating device for yellow phosphorus tail gas combustion.
Background
The yellow phosphorus is produced by putting phosphate ore, silica and coke (white coal) into an electric furnace according to a certain proportion and granularity, decomposing and reducing at high temperature of more than 1000 ℃, cooling and rinsing phosphorus steam and furnace dust to obtain a product, and directly discharging high-temperature slag from the electric furnace. A large amount of tail gas is produced during yellow phosphorus production, the main component is CO, and the main component is about 90%, so that the yellow phosphorus production is good fuel or chemical raw material gas. The tail gas contains phosphorus, sulfur, fluorine, arsenic, CO2, H2, N2, CH4 and other gas impurities, the purification cost for removing the impurities is high, and most enterprises choose to ignite a torch for emptying under the condition of no downstream chemical products, so that the combustion heat energy of yellow phosphorus tail gas cannot be well recycled. However, in the production of yellow phosphorus, the heat preservation and refining are carried out by using steam produced by a coal-fired boiler, which causes unreasonable phenomenon of energy waste.
The domestic patent number 200720104505.8 describes a yellow phosphorus tail gas combustion utilization boiler, which utilizes a waste heat boiler, yellow phosphorus tail gas is firstly combusted through an adiabatic combustion chamber, high-temperature flue gas after combustion enters the waste heat boiler, the adiabatic combustion chamber does not absorb heat, because heat energy after combustion of the yellow phosphorus tail gas is released and greatly concentrated in a high-temperature section, but the adiabatic combustion chamber cannot absorb combustion heat of the high-temperature section in the furnace, the waste heat boiler only can utilize the tail gas to generate heat of middle-low temperature Duan Reneng after flue gas is cooled, so that the utilization rate of heat energy after combustion of the yellow phosphorus tail gas is greatly reduced, and the thermal efficiency of the system is generally less than 40%; the waste heat boiler is made of ND steel, which belongs to the contact of metal and corrosive gas, corrosion still occurs, high temperature corrosion and low temperature corrosion cannot be resisted for a long time, and the service life of the waste heat boiler is not substantially solved.
The current application number is 201620938297.0, and its name is a special steam generator of yellow phosphorus tail gas, including top layer water tank, bottom water tank and communicating pipe, the top layer water tank is including interior header tank and outer header tank of going up, sets up many communicating pipes intercommunication between interior header tank and the outer header tank of going up, and the outer header tank outside of going up is provided with the outlet pipe. The bottom water tank comprises an inner lower water tank and an outer lower water tank, a plurality of communication pipes are arranged between the inner lower water tank and the outer lower water tank for communication, and a water inlet pipe is arranged on the outer side of the outer lower water tank. The special steam generating device for the yellow phosphorus tail gas aims at a waste heat recovery boiler for burning the smoke of the yellow phosphorus furnace, an inner barrel structure is added, the heating area is increased, heat can be replaced as much as possible, and the heat is fully utilized.
However, in the process of continuously generating steam, a large amount of continuous steam enters the device, after the water in the device rises to 100 ℃, the steam entering the device subsequently can not raise the water temperature, still can cause heat energy waste, can cause a large amount of moisture evaporation and influence the equipment work, so that the steam generating device for yellow phosphorus tail gas combustion is provided.
Disclosure of utility model
The utility model aims to solve the problems in the background technology and provides a steam generating device for yellow phosphorus tail gas combustion.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a yellow phosphorus tail gas is steam generator for burning, includes the insulation can, be provided with the heat recovery frame in the insulation can, the heat recovery frame includes first outer loop to and a plurality of first connecting pipes that first outer loop bottom set up, a plurality of first connecting pipe bottom is provided with the second outer loop, evenly be provided with a plurality of second connecting pipes in the second outer loop, a plurality of second connecting pipe terminal surface is provided with first inner loop, first inner loop top evenly is provided with a plurality of third connecting pipes, and a plurality of third connecting pipe top is provided with the second inner loop, be provided with the intake pipe that is used for steam to get into on the heat recovery frame, be provided with the outlet duct that is used for steam output on the second inner loop.
Preferably, a water supply pipe is arranged on the outer surface of the insulation box near the top, and a water outlet pipe is arranged at the bottom of the insulation box.
Preferably, the heat recovery frame outer surface symmetry is provided with the spacing, the spacing includes the mount to and first block groove and the second block groove that the mount surface is close to top and bottom, and first block groove and second block groove cooperate with first outer loop and second outer loop position respectively, the mount surface is close to the top position and is provided with the stopper.
Preferably, a plurality of fixing rods are arranged between the heat recovery frame and the second inner ring.
Preferably, the insulation can outer surface symmetry has seted up the spacing groove, the stopper cooperatees with spacing groove position.
Preferably, the air inlet pipe, the first outer ring, the first connecting pipe, the second outer ring, the second connecting pipe, the first inner ring, the third connecting pipe, the second inner ring and the air outlet pipe are communicated.
Preferably, the first connecting pipes are all communicated with the first outer ring and the second outer ring, the second connecting pipes are all communicated with the second outer ring and the first inner ring, and the third connecting pipes are all communicated with the first inner ring and the second inner ring.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. The utility model provides a steam generating device for yellow phosphorus tail gas combustion, wherein hot steam passes through a heat recovery frame, and the steam performs heat exchange with water resources in an incubator through the pipe wall of the heat recovery frame; through the heat recovery frame, increase heat exchange's area, promote heat utilization efficiency.
2. The utility model provides a steam generating device for yellow phosphorus tail gas combustion, which is used for discharging the yellow phosphorus tail gas through a water outlet pipe when the temperature of an insulation box exceeds a preset temperature, and injecting water resources through a water supply pipe, so that the temperature of the water resources in the insulation box is properly reduced.
Drawings
Fig. 1 is a schematic diagram of a perspective structure of a steam generator for yellow phosphorus tail gas combustion according to the present utility model;
fig. 2 is a schematic diagram showing a structure of a steam generator for yellow phosphorus tail gas combustion according to the present utility model;
Fig. 3 is a schematic structural view of a heat recovery frame of a steam generator for yellow phosphorus tail gas combustion according to the present utility model;
fig. 4 is a schematic diagram showing a cross-sectional structure of a heat recovery frame of a steam generator for yellow phosphorus tail gas combustion.
Legend description: 1. an insulation box; 11. a water supply pipe; 12. a water outlet pipe; 13. a limit groove; 2. a heat recovery rack; 20. a fixed rod; 21. a first outer ring; 22. a first connection pipe; 23. a second outer ring; 24. a second connection pipe; 25. a first inner ring; 26. a third connection pipe; 27. a second inner ring; 28. an air inlet pipe; 29. an air outlet pipe; 3. a fixing frame; 31. a first engagement groove; 32. a second engagement groove; 33. and a limiting block.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Embodiment 1, as shown in fig. 1-4, a steam generating device for yellow phosphorus tail gas combustion comprises an insulation box 1, wherein a heat recovery frame 2 is arranged in the insulation box 1, the heat recovery frame 2 comprises a first outer ring 21, a plurality of first connecting pipes 22 arranged at the bottom of the first outer ring 21, a second outer ring 23 arranged at the bottom of the plurality of first connecting pipes 22, a plurality of second connecting pipes 24 uniformly arranged in the second outer ring 23, a first inner ring 25 arranged on the end face of the plurality of second connecting pipes 24, a plurality of third connecting pipes 26 uniformly arranged on the top of the first inner ring 25, a second inner ring 27 arranged on the top of the plurality of third connecting pipes 26, an air inlet pipe 28 for steam to enter and an air outlet pipe 29 for steam to output are arranged on the second inner ring 27.
It enters the heat recovery rack 2 through the air inlet pipe 28, enters the plurality of first connecting pipes 22 from the first outer ring 21 and the second outer ring 23 respectively, then enters the first inner ring 25 through the plurality of second connecting pipes 24, then enters the second inner ring 27 through the plurality of third connecting pipes 26, and then flows out from the air outlet pipe 29; the hot steam passes through the heat recovery rack 2, and the steam thermally interacts with the water resource in the incubator 1 through the pipe wall of the heat recovery rack 2.
Through heat recovery frame 2, increase the area of heat exchange, promote heat energy utilization efficiency.
The outer surface of the heat preservation box 1 is provided with a water supply pipe 11 near the top position, the bottom of the heat preservation box 1 is provided with a water outlet pipe 12, water resources are supplied to the heat preservation box 1 through the water supply pipe 11, when the temperature of the heat preservation box 1 exceeds the preset temperature, the water is discharged through the water outlet pipe 12, and the water resources are injected through the water supply pipe 11, so that the temperature of the water resources in the heat preservation box 1 is properly reduced.
The heat recovery frame 2 outward appearance symmetry is provided with the spacing, the spacing includes mount 3, and the first block groove 31 and the second block groove 32 that mount 3 outward appearance is close to top and bottom, and first block groove 31 and second block groove 32 cooperate with first outer loop 21 and second outer loop 23 position respectively, mount 3 outward appearance is close to the top position and is provided with stopper 33, spacing groove 13 has been seted up to insulation can 1 outward appearance symmetry, stopper 33 cooperates with spacing groove 13 position, install the spacing on heat recovery frame 2, first block groove 31 and second block groove 32 of spacing respectively with first outer loop 21 and second outer loop 23 block, the spacing is installed along the spacing groove 13 of insulation can 1 afterwards, prevent that heat recovery frame 2 from directly contacting with insulation can 1.
The limiting frame is made of heat insulation material, so that heat energy is prevented from being transferred.
A plurality of fixing rods 20 are arranged between the heat recovery frame 2 and the second inner ring 27, the heat recovery frame 2 and the second inner ring 27 are connected by the fixing rods 20, connection stability is improved, and equipment working safety is ensured.
The air inlet pipe 28, the first outer ring 21, the first connecting pipe 22, the second outer ring 23, the second connecting pipe 24, the first inner ring 25, the third connecting pipe 26, the second inner ring 27 and the air outlet pipe 29 are in communication arrangement, the plurality of first connecting pipes 22 are all in communication arrangement with the first outer ring 21 and the second outer ring 23, the plurality of second connecting pipes 24 are all in communication arrangement with the second outer ring 23 and the first inner ring 25, the plurality of third connecting pipes 26 are all in communication arrangement with the first inner ring 25 and the second inner ring 27, steam circulates along the air inlet pipe 28, the first outer ring 21, the first connecting pipe 22, the second outer ring 23, the second connecting pipe 24, the first inner ring 25, the third connecting pipe 26, the second inner ring 27 and the air outlet pipe 29, the flow track is increased, the contact area with water resources is directly increased, and the heat interaction effect is improved.
The working principle is that the equipment is installed, the first clamping groove 31 and the second clamping groove 32 of the limiting frame are respectively clamped with the first outer ring 21 and the second outer ring 23, and then the limiting frame is installed along the limiting groove 13 of the insulation box 1, so that the heat recovery frame 2 is prevented from directly contacting with the insulation box 1; steam enters the heat recovery rack 2 through the air inlet pipe 28, circulates from the first outer ring 21, the first connecting pipe 22, the second outer ring 23, the second connecting pipe 24, the first inner ring 25, the third connecting pipe 26, the second inner ring 27 and the air outlet pipe 29, grows the flow track, the hot steam passes through the heat recovery rack 2, and the steam performs heat exchange with water resources in the heat preservation box 1 through the pipe wall of the heat recovery rack 2;
When the temperature of the heat preservation box 1 exceeds the preset temperature, the water is discharged through the water outlet pipe 12, and water resources are injected through the water supply pipe 11, so that the temperature of the water resources in the heat preservation box 1 is properly reduced.
The present utility model is not limited to the above embodiments, and any equivalent embodiments which can be changed or modified by the technical disclosure described above can be applied to other fields, but any simple modification, equivalent changes and modification to the above embodiments according to the technical matter of the present utility model will still fall within the protection scope of the technical disclosure.
Claims (7)
1. The utility model provides a yellow phosphorus tail gas burning is with steam generation device, includes insulation can (1), its characterized in that: be provided with heat recovery frame (2) in insulation can (1), heat recovery frame (2) include first outer ring (21) to and a plurality of first connecting pipe (22) that first outer ring (21) bottom set up, a plurality of first connecting pipe (22) bottom is provided with second outer ring (23), evenly be provided with a plurality of second connecting pipes (24) in second outer ring (23), a plurality of second connecting pipe (24) terminal surface is provided with first inner ring (25), first inner ring (25) top evenly is provided with a plurality of third connecting pipe (26), a plurality of third connecting pipe (26) top is provided with second inner ring (27), be provided with on heat recovery frame (2) intake pipe (28) that are used for steam to get into, be provided with outlet duct (29) that are used for steam output on second inner ring (27).
2. The steam generator for yellow phosphorus tail gas combustion of claim 1, wherein: a water supply pipe (11) is arranged on the outer surface of the heat preservation box (1) close to the top, and a water outlet pipe (12) is arranged at the bottom of the heat preservation box (1).
3. The steam generator for yellow phosphorus tail gas combustion of claim 1, wherein: the heat recovery frame (2) outward appearance symmetry is provided with the spacing, the spacing includes mount (3) to and first block groove (31) and second block groove (32) that mount (3) surface is close to top and bottom, and first block groove (31) and second block groove (32) cooperate with first outer ring (21) and second outer ring (23) position respectively, mount (3) surface is close to top position and is provided with stopper (33).
4. The steam generator for yellow phosphorus tail gas combustion of claim 1, wherein: a plurality of fixing rods (20) are arranged between the heat recovery frame (2) and the second inner ring (27).
5. A yellow phosphorus tail gas combustion steam generator as set forth in claim 3, wherein: limiting grooves (13) are symmetrically formed in the outer surface of the heat insulation box (1), and limiting blocks (33) are matched with the limiting grooves (13) in position.
6. The steam generator for yellow phosphorus tail gas combustion of claim 1, wherein: the air inlet pipe (28), the first outer ring (21), the first connecting pipe (22), the second outer ring (23), the second connecting pipe (24), the first inner ring (25), the third connecting pipe (26), the second inner ring (27) and the air outlet pipe (29) are communicated.
7. The steam generator for yellow phosphorus tail gas combustion of claim 6, wherein: a plurality of first connecting pipes (22) are all in the intercommunication setting with first outer loop (21) and second outer loop (23), a plurality of second connecting pipes (24) are all in the intercommunication setting with second outer loop (23) and first inner loop (25), a plurality of third connecting pipes (26) are all in the intercommunication setting with first inner loop (25) and second inner loop (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322472120.9U CN221005029U (en) | 2023-09-12 | 2023-09-12 | Steam generating device for yellow phosphorus tail gas combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322472120.9U CN221005029U (en) | 2023-09-12 | 2023-09-12 | Steam generating device for yellow phosphorus tail gas combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221005029U true CN221005029U (en) | 2024-05-24 |
Family
ID=91091158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322472120.9U Active CN221005029U (en) | 2023-09-12 | 2023-09-12 | Steam generating device for yellow phosphorus tail gas combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221005029U (en) |
-
2023
- 2023-09-12 CN CN202322472120.9U patent/CN221005029U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940248B (en) | A kind of heat accumulating type electric boiler flue gas waste heat recovery system | |
| CN201942519U (en) | Thermal energy recovery and utilization device in production of thermal phosphoric acid and production system of thermal energy recovery and utilization device | |
| CN102925165A (en) | Afterheat recovery system for raw coke oven gas of coke oven ascension pipe | |
| CN110926217B (en) | Yellow phosphorus slag water quenching waste heat recovery device | |
| CN105318307A (en) | Two-drum horizontal settling chamber spraying denitration corner-tube boiler | |
| CN102964884A (en) | Hot cracking method process for preparing carbon black by using co-production of tail gas | |
| CN204002957U (en) | A kind of Waste Energy In Iron & Steel Enterprises comprehensive high-efficiency power generation system | |
| CN211227042U (en) | Device for catalytic hydrogen production and power generation of biomass | |
| CN221005029U (en) | Steam generating device for yellow phosphorus tail gas combustion | |
| CN201983281U (en) | Energy-saving exit flue for horizontal coal burning boiler | |
| CN101811683B (en) | Method for producing phosphates with hot-process phosphoric acid device by utilizing waste heat | |
| CN216192066U (en) | System for replacing crude benzene zone tube furnace with waste heat of coke oven flue gas waste heat boiler and ascending tube | |
| CN204509202U (en) | Gas-conducting cells, gas operated device and pulverized coal pyrolysis device | |
| CN104762096A (en) | Gas guide unit, gas guide device, coal powder pyrolysis device and coal powder pyrolysis method | |
| CN211425097U (en) | Primary cooler | |
| CN100436379C (en) | System for united electricity generation using coke oven gas, tar oil, flume and producing composite fertilizer | |
| CN210050782U (en) | Single-drum horizontal layer combustion corner tube boiler | |
| CN102798112B (en) | Boiler capable of preventing scorification and dust stratification | |
| CN202881180U (en) | Heat exchanger of crude gas waste heat recovery used for coke oven ascension pipe | |
| CN208222820U (en) | A kind of Novel asymmetric flag facial canal structure boiler | |
| CN205279031U (en) | Dangerous for waste incineration exhaust -heat boiler who can be used to electricity generation | |
| CN204345599U (en) | A kind of spray denitration boiler with expansion chamber | |
| CN202057214U (en) | Pipe heat exchanger by utilizing residual heat of thermal phosphoric acid device to produce inorganic salt | |
| CN202947111U (en) | Coking furnace heat pipe waste heat boiler | |
| CN105318309A (en) | Two-drum spraying denitration settling separation corner-tube boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |