CN212719785U - Energy-saving environment-friendly yellow phosphorus tail gas combustion boiler - Google Patents
Energy-saving environment-friendly yellow phosphorus tail gas combustion boiler Download PDFInfo
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- CN212719785U CN212719785U CN202021567428.1U CN202021567428U CN212719785U CN 212719785 U CN212719785 U CN 212719785U CN 202021567428 U CN202021567428 U CN 202021567428U CN 212719785 U CN212719785 U CN 212719785U
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Abstract
The utility model provides an energy-concerving and environment-protective type yellow phosphorus tail gas combustion boiler relates to bonderizing industry discarded object and recycles technical field, the utility model discloses a tail gas combustor, furnace body, heat exchanger take place the space of burning and carry out and be provided with the anticorrosive wall between the heat exchanger inside the furnace body. The utility model divides the heat transfer of tail gas combustion into a horizontal transfer channel and a vertical transfer channel, wherein, a plurality of heat exchange water tank groups are arranged in the vertical transfer channel, and a separator is arranged at the bottom of the vertical transfer channel; arranging a spoiler in the horizontal heat transfer channel; the isolator and the spoiler bear main smoke corrosion, can be repaired and replaced periodically, and have the advantages of low manufacturing cost, convenient replacement and low cost; the yellow phosphorus tail gas is fully utilized, the production environment is improved, and good economic benefit and social benefit are obtained.
Description
Technical Field
The utility model relates to a bonderizing industry discarded object technical field of recycling, concretely relates to yellow phosphorus tail gas burner.
Background
At present, the industrial production method of yellow phosphorus is an electric furnace method, and one ton of yellow phosphorus can be produced to about 2500-3000 cubic metersThe tail gas contains carbon monoxide as the main component, the content of the carbon monoxide is up to 85% -92%, and the heat value of the tail gas is equivalent to 5500-6500 m3The calorific value of the urban gas is 10.5-11 MJ/m3Is much higher than the semi-water gas, and has high utilization value. Therefore, the yellow phosphorus tail gas is a good heat source raw material.
The comprehensive utilization of the yellow phosphorus tail gas can save energy and improve efficiency, and is an important means for solving the problem of atmospheric environmental pollution.
The yellow phosphorus tail gas contains many impurities besides carbon monoxide, such as: inorganic sulfur, organic sulfur, fluorine, phosphorus, cyanide, raw material dust, and the like. After the yellow phosphorus tail gas is subjected to phosphorus collection and gas washing by spray water, most of corrosion medium elements such as fluorine, phosphorus, sulfur and the like can be removed, but a small amount of phosphorus and sulfur and trace fluorine are difficult to remove. The yellow phosphorus tail gas steam boiler adopts a boiler structure with combustion and heat exchange separated, the structure can avoid erosion corrosion of high-temperature flame to boiler equipment and combustion corrosion of elemental phosphorus to the tubes, but can still avoid oxidation corrosion and hydrogen embrittlement of high-temperature flue gas to the tubes and acid dew point corrosion of low-temperature flue gas to an energy saver and a flue chimney. Finally, the replacement of the tube nest, the energy saver, the flue and other equipment is frequent, the process is unstable, the production efficiency is low, and even the whole boiler is scrapped by serious people.
Disclosure of Invention
In order to solve the problem, the utility model provides an energy-concerving and environment-protective type yellow phosphorus tail gas burning boiler designs the boiler through adopting burning structure and the detached mode of heat transfer structure, increases combustion strength and steam dwell time in the burning structure to and carry out anticorrosive and anti-oxidation protection to the heat transfer structure, reach and promote yellow phosphorus tail gas combustion completeness, reduce the direct contact of burning flue gas and heat transfer structure, realize the yellow phosphorus tail gas utilization of energy-conserving high efficiency and environmental protection.
In order to achieve the above object, the utility model adopts the following technical means: an energy-saving environment-friendly yellow phosphorus tail gas combustion boiler comprises a tail gas combustor 1, a furnace body 2 and a heat exchanger 3, and is characterized in that an anti-corrosion isolator 302 is arranged between a space where combustion occurs inside the furnace body 2 and the heat exchanger 3;
the tail gas burner 1 comprises a burner head 101, an electronic igniter 102 and a gas mixing pipeline 103, wherein the burner head 101 extends into the furnace body 2, the gas mixing pipeline 103 is fixed on the outer wall 202 of the furnace body, and the burner head 101, the electronic igniter and the gas mixing pipeline are coaxially connected; the outer end of the electronic igniter 102 is fixed on the side wall of the gas mixing pipeline 103, and the other end is wrapped inside the combustion head 101; the gas mixing pipeline 103 is respectively connected with an air inlet pipe 104 and a tail gas inlet pipe 105, the tail gas inlet pipe 105 is arranged inside the air inlet pipe 104, one end of the air inlet pipe 104 is connected with the side wall of the gas mixing pipeline 103, and the other end of the air inlet pipe is connected with a blower 106; the tail gas inlet pipe 105 is connected with the tail gas recovery mechanism and the tail gas purification mechanism and used for supplying tail gas.
The tail gas combustor 1 is installed at the front end of the furnace body 2, the furnace body 2 comprises a combustion chamber 201, a furnace body outer wall 202, a vertical heat transfer channel and a horizontal heat transfer channel, and a smoke exhaust channel 203 is arranged at the top of the furnace body 2.
The heat exchanger 3 comprises a heat exchange water tank set 301 and a breaker 302, and the heat exchange water tank set 301 is connected with a steam pipe and penetrates through the furnace body 2.
The heat exchange water tank set 301 comprises a plurality of heat exchange water tanks, and a single heat exchange water tank adopts an inner layer and an outer layer which are communicated in parallel, and specifically comprises an upper layer outer tank 303, an upper layer inner tank 304, a lower layer outer tank 305 and a lower layer inner tank 306.
The upper outer box 303 and the lower outer box 305 have the same shape and size, and a heated pipe 307 which is distributed in parallel in the vertical direction is arranged between the upper outer box 303 and the lower outer box 305; the upper inner tank 304 and the lower inner tank 306 are also identical in shape and size, and the heated tubes 307 are also arranged therebetween in parallel in the vertical direction.
The upper outer box 303 and the upper inner box 304 are communicated with each other, and the lower outer box 305 and the lower inner box 306 are provided with capillaries 308 which are parallel and equally spaced;
the breaker 302 is arranged at the bottom of the heat exchange water tank group 301 and comprises two hollow geometric cylinders 309 which are concentrically arranged, a bottom water tank 310 with the same size as each geometric cylinder 309 is arranged at the bottom of each geometric cylinder 309, and the two bottom water tanks 310 are also communicated with each other through capillary tubes 308; the height of the two hollow geometric cylinders 309 extends to 1/3 at the height of the heated tube 307; in addition, capillary tubes 308 are provided in communication between the bottom tank 310 and the lower outer tank 305 and the lower inner tank 306.
Preferably, the upper and lower outer boxes 303 and 305, the upper and lower inner boxes 304 and 306, and the capillary tube 308 and the heated tube 307 connected therebetween are provided with corrosion-resistant and oxidation-resistant barriers.
Preferably, the upper and lower outer tanks 303 and 305 and the heated pipe 307 between the upper and lower outer tanks 303 and 304 are provided in two layers, and are connected to the inner and outer edges of the upper outer tank 303, the upper inner tank 304, the lower outer tank 305, and the lower inner tank 306 in this order.
Preferably, the bottom of each of the two geometric cylinders 309 of the partitioning device 302 is fixed to the outer edge of the corresponding bottom water tank 310, the two cylinder walls are parallel to each other, and the top of each cylinder wall is opposite in direction, wherein the top cylinder wall of the inner geometric cylinder 309 is inwardly folded, and the top cylinder wall of the outer geometric cylinder 309 is outwardly diffused, so that flames generated by the burner 101 are partitioned, and heat is respectively guided to the inner layer and the outer layer of the parallel structure of the heat exchange water tank.
Preferably, in order to make the residence time of the tail gas in the combustion chamber 201 longer, make the combustion more sufficient, and reduce the distance of the phosphorus steam transmitted along with the flue gas in the horizontal heat transfer channel, the horizontal heat transfer channel is provided with a spoiler 204, and the specific structure is that incomplete partition plates are arranged on the left and right sides inside the combustion chamber 201 in a staggered manner, and a plurality of air holes are arranged on the partition plates.
Preferably, the outer wall 202 of the furnace body is provided with a heat insulation layer, which is a hollow water-cooling heat insulation layer 205.
Preferably, an air supplement pipe 206 is disposed outside the horizontal heat transfer passage to reduce the temperature of the hot air.
The principle and the beneficial effects of the application are as follows:
the utility model discloses divide the heat transfer of tail gas burning into horizontal transfer passageway and vertical transfer passageway, wherein, install a plurality of heat transfer water tank group 301 in vertical transfer passageway, and set up the wall 302 in its bottom, make phosphorus stove tail gas flame and flue gas not direct contact heat transfer water tank, but contact wall 302, for the hot-blast transmission that its burning produced is upwards through two concentric hollow geometric cylinders 309 that set up on the wall 302, heat lower floor's outer container 305 and lower floor's inner box 306 and heated tube 307 of heat transfer water tank; the spoiler 204 is arranged in the horizontal heat transfer channel, the combustion degree of tail gas is improved, then heat is guided to the upper half part, and the upper outer box 303, the upper inner box 304 and the heated pipe 307 are heated; in addition, this application has still set up anticorrosive oxidation-resistant interlayer on each part of heat transfer water tank group 301, and multiple structure setting makes yellow phosphorus tail gas boiler can the safe and stable operation, make full use of yellow phosphorus tail gas, also improve the production environment simultaneously, has obtained good economic benefits and social.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a cutaway view of the tail gas burner.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is a cutaway view of fig. 3.
Fig. 5 is a top sectional view of the heat exchange water tank.
Fig. 6 is a schematic perspective view of a heat exchange water tank set.
Fig. 7 is a longitudinal sectional view of the heat exchange water tank group.
FIG. 8 is a longitudinal sectional view of the heat exchange water tank group in example 2.
FIG. 9 is a top sectional view of the heat exchange water tank of example 2.
In the figure: the device comprises a tail gas combustor 1, a combustion head 101, an electronic igniter 102, a gas mixing pipeline 103, an air inlet pipe 104, a tail gas inlet pipe 105, a blower 106, a furnace body 2, a combustion chamber 201, a furnace body outer wall 202, a smoke exhaust channel 203, a spoiler 204, a water-cooling heat insulation layer 205, an air supplementing pipe 206, a heat exchanger 3, a heat exchange water tank group 301, a breaker 302, an upper layer outer tank 303, an upper layer inner tank 304, a lower layer outer tank 305, a lower layer inner tank 306, a heated pipe 307, a capillary tube 308, a geometric cylinder 309 and a bottom water tank 310.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in fig. 1-7, the energy-saving environment-friendly yellow phosphorus tail gas combustion boiler according to the embodiment includes a tail gas combustor 1, a furnace body 2, and a heat exchanger 3; an anti-corrosion block 302 is provided between the space in which combustion occurs inside the furnace body 2 and the heat exchanger 3.
The tail gas burner 1 comprises a burner head 101, an electronic igniter 102 and a gas mixing pipeline 103, wherein the burner head 101 extends into the furnace body 2, the gas mixing pipeline 103 is fixed on the outer wall 202 of the furnace body, and the burner head 101, the electronic igniter and the gas mixing pipeline are coaxially connected; the outer end of the electronic igniter 102 is fixed on the side wall of the gas mixing pipeline 103, and the other end is wrapped inside the combustion head 101; the gas mixing pipeline 103 is respectively connected with an air inlet pipe 104 and a tail gas inlet pipe 105, the tail gas inlet pipe 105 is arranged inside the air inlet pipe 104, one end of the air inlet pipe 104 is connected with the side wall of the gas mixing pipeline 103, and the other end of the air inlet pipe is connected with a blower 106; the tail gas inlet pipe 105 is connected with the tail gas recovery mechanism and the tail gas purification mechanism and used for supplying tail gas.
The tail gas combustor 1 is installed at the front end of the furnace body 2, the furnace body 2 comprises a combustion chamber 201, a furnace body outer wall 202, a vertical heat transfer channel and a horizontal heat transfer channel, and a smoke exhaust channel 203 is arranged at the top of the furnace body 2.
The heat exchanger 3 comprises a heat exchange water tank set 301 and a breaker 302, and the heat exchange water tank set 301 is connected with a steam pipe and penetrates through the furnace body 2.
The heat exchange water tank set 301 comprises a plurality of heat exchange water tanks, and a single heat exchange water tank adopts an inner layer and an outer layer which are communicated in parallel, and specifically comprises an upper layer outer tank 303, an upper layer inner tank 304, a lower layer outer tank 305 and a lower layer inner tank 306.
The upper outer box 303 and the lower outer box 305 have the same shape and size, and a heated pipe 307 which is distributed in parallel in the vertical direction is arranged between the upper outer box 303 and the lower outer box 305; the upper inner tank 304 and the lower inner tank 306 are also identical in shape and size, and the heated tubes 307 are also arranged therebetween in parallel in the vertical direction.
The upper outer box 303 and the upper inner box 304 are communicated with each other, and the lower outer box 305 and the lower inner box 306 are provided with capillaries 308 which are parallel and equally spaced;
the breaker 302 is arranged at the bottom of the heat exchange water tank group 301 and comprises two hollow geometric cylinders 309 which are concentrically arranged, a bottom water tank 310 with the same size as each geometric cylinder 309 is arranged at the bottom of each geometric cylinder 309, and the two bottom water tanks 310 are also communicated with each other through capillary tubes 308; the height of the two hollow geometric cylinders 309 extends to 1/3 at the height of the heated tube 307; in addition, capillary tubes 308 are provided in communication between the bottom tank 310 and the lower outer tank 305 and the lower inner tank 306.
Example 2
As shown in fig. 1-4 and 8-9, the energy-saving and environment-friendly yellow phosphorus tail gas combustion boiler described in this embodiment has a structure substantially the same as that described in embodiment 1, except that: the upper and lower outer boxes 303 and 305, the upper and lower inner boxes 304 and 306, and the capillary tube 308 and the heated tube 307 connected therebetween are provided with anticorrosive oxidation-resistant barriers on their surfaces.
The upper and lower outer tanks 303 and 305 and the heat receiving pipes 307 between the upper and lower outer tanks 303 and 304 are provided in two layers, and are connected to the inner and outer edges of the upper outer tank 303, the upper inner tank 304, the lower outer tank 305, and the lower inner tank 306 in this order.
And the bottom of the two geometric cylinders 309 on the breaker 302 is fixed with the outer edge of the corresponding bottom water tank 310, the two cylinder walls are parallel to each other, and the top of the cylinder walls are opposite in direction, wherein the top cylinder wall of the inner geometric cylinder 309 is folded inwards, and the top cylinder wall of the outer geometric cylinder 309 is diffused outwards, so that the flame generated by the burner 101 is separated, and the heat is respectively guided to the inner layer and the outer layer of parallel structure of the heat exchange water tank.
In addition, in order to make the retention time of the tail gas in the combustion chamber 201 longer, make the combustion more sufficient and reduce the distance of the phosphorus steam transmitted along with the flue gas in the horizontal heat transfer channel, the horizontal heat transfer channel is provided with a spoiler 204, the specific structure is that incomplete partition plates are arranged on the left side and the right side inside the combustion chamber 201 in a staggered mode, and a plurality of air holes are formed in the partition plates.
Finally, the outer wall 202 of the furnace body is provided with a heat insulation layer which is a hollow water-cooling heat insulation layer 205; an air supplementing pipe 206 is arranged outside the horizontal heat transfer channel to reduce the temperature of the hot air.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. An energy-saving environment-friendly yellow phosphorus tail gas combustion boiler comprises a tail gas combustor (1), a boiler body (2) and a heat exchanger (3), and is characterized in that an anti-corrosion isolator (302) is arranged between a space where combustion occurs inside the boiler body (2) and the heat exchanger (3);
the tail gas combustor (1) comprises a combustion head (101), an electronic igniter (102) and a gas mixing pipeline (103), wherein the combustion head (101) extends into the furnace body (2), the gas mixing pipeline (103) is fixed on the outer wall (202) of the furnace body, and the combustion head (101) and the gas mixing pipeline are coaxially connected; the outer end of the electronic igniter (102) is fixed on the side wall of the gas mixing pipeline (103), and the other end of the electronic igniter is wrapped inside the combustion head (101); the gas mixing pipeline (103) is respectively connected with an air inlet pipe (104) and a tail gas inlet pipe (105), the tail gas inlet pipe (105) is arranged inside the air inlet pipe (104), one end of the air inlet pipe (104) is connected with the side wall of the gas mixing pipeline (103), and the other end of the air inlet pipe is connected with a blower (106); the tail gas inlet pipe (105) is connected with the tail gas recovery mechanism and the tail gas purification mechanism;
the tail gas burner (1) is arranged at the front end of the furnace body (2), the furnace body (2) comprises a combustion chamber (201), a furnace body outer wall (202), a vertical heat transfer channel and a horizontal heat transfer channel, and the top of the furnace body (2) is provided with a smoke exhaust channel (203);
the heat exchanger (3) comprises a heat exchange water tank set (301) and a breaker (302), wherein a steam pipe is connected to the heat exchange water tank set (301) and penetrates through the furnace body (2);
the heat exchange water tank set (301) comprises a plurality of heat exchange water tanks, and a single heat exchange water tank adopts a structure that an inner layer and an outer layer are communicated in parallel, and specifically comprises an upper outer tank (303), an upper inner tank (304), a lower outer tank (305) and a lower inner tank (306);
the upper outer box (303) and the lower outer box (305) have the same shape and size, and a heated pipe (307) which is distributed in parallel in the vertical direction is arranged between the upper outer box and the lower outer box; the upper layer inner box (304) and the lower layer inner box (306) are also the same in shape and size, and heated pipes (307) which are distributed in parallel in the vertical direction are also arranged between the upper layer inner box and the lower layer inner box;
the upper outer box (303) and the upper inner box (304) are communicated, and the lower outer box (305) and the lower inner box (306) are parallelly and equally spaced and provided with capillaries (308);
the breaker (302) is arranged at the bottom of the heat exchange water tank group (301) and comprises two hollow geometric cylinders (309) which are concentrically arranged, a bottom water tank (310) with the same size as the geometric cylinders is arranged at the bottom of each geometric cylinder (309), and the two bottom water tanks (310) are also communicated with each other through capillary tubes (308); the height of the two hollow geometric cylinders (309) extends to 1/3 of the heated tube (307) height; in addition, capillary tubes (308) which are communicated with each other are arranged between the bottom water tank (310) and the lower outer box (305) and the lower inner box (306).
2. The boiler according to claim 1, wherein the outer layers of the upper outer tank (303) and the lower outer tank (305), the upper inner tank (304) and the lower inner tank (306), and the capillary tube (308) and the heated tube (307) connected therebetween are provided with anti-corrosion and oxidation-resistant barrier.
3. The boiler according to claim 1, wherein the upper outer box (303) and the lower outer box (305), and the heated pipes (307) between the upper outer box (303) and the upper inner box (304) are arranged in two layers, respectively, and are sequentially connected to the inner and outer edges of the upper outer box (303), the upper inner box (304), the lower outer box (305) and the lower inner box (306).
4. The boiler according to claim 1, wherein the bottom of each of the two geometric cylinders (309) of the partition (302) is fixed to the outer edge of the corresponding bottom water tank (310), the two cylinder walls are parallel to each other, and the top of the cylinder walls run in opposite directions, wherein the top cylinder wall of the inner geometric cylinder (309) is inwardly closed, and the top cylinder wall of the outer geometric cylinder (309) is outwardly open, so as to separate the flame generated by the burner (101) and guide the heat to the inner and outer parallel structures of the heat exchange water tank.
5. The boiler according to claim 1, wherein turbulence generators (204) are disposed in the horizontal heat transfer channels, and the structure of the boiler is that incomplete separating plates are disposed in the left and right sides of the combustion chamber (201) in a staggered manner, and a plurality of air holes are disposed on the separating plates.
6. The energy-saving environment-friendly yellow phosphorus tail gas combustion boiler according to claim 1, characterized in that the outer wall (202) of the boiler body is provided with a heat insulation layer which is a hollow water-cooling heat insulation layer (205).
7. The boiler according to claim 1, wherein an air supply pipe (206) is disposed outside the horizontal heat transfer channel to reduce the temperature of the hot air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567428.1U CN212719785U (en) | 2020-08-01 | 2020-08-01 | Energy-saving environment-friendly yellow phosphorus tail gas combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021567428.1U CN212719785U (en) | 2020-08-01 | 2020-08-01 | Energy-saving environment-friendly yellow phosphorus tail gas combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212719785U true CN212719785U (en) | 2021-03-16 |
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ID=74911431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021567428.1U Active CN212719785U (en) | 2020-08-01 | 2020-08-01 | Energy-saving environment-friendly yellow phosphorus tail gas combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212719785U (en) |
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2020
- 2020-08-01 CN CN202021567428.1U patent/CN212719785U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 655102 Liao Jia Tian, Jitou village, Malong District, Qujing City, Yunnan Province Patentee after: Qujing Yunhua Phosphorus Chemical Co.,Ltd. Address before: 655102 Liao Jia Tian, Jitou village, Malong District, Qujing City, Yunnan Province Patentee before: Yunnan Malong Yunhua Phosphorus Chemical Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |