CN213930871U - Multi-fuel industrial environment-friendly boiler - Google Patents
Multi-fuel industrial environment-friendly boiler Download PDFInfo
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- CN213930871U CN213930871U CN202022340875.XU CN202022340875U CN213930871U CN 213930871 U CN213930871 U CN 213930871U CN 202022340875 U CN202022340875 U CN 202022340875U CN 213930871 U CN213930871 U CN 213930871U
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Abstract
The utility model discloses an environmental protection boiler for multi-fuel industry, including fuel fill, grate, preceding arch, front wall, ceiling, keep off hot wall, first after encircle, encircle behind the second and the third after, tear flue gas wall, barricade, first ash blocking plate open. The utility model discloses the front arch the first back arch, the second is back to encircle and form the back taper with the third, the steam that is favorable to the multiple fuel of burning on the grate to produce gathers, because preceding wall, fire wall, first smoke wall, barricade of tearing open form the flue between have many places turn for the steam flow resistance of gathering increases, and then the steam heat dissipation of sluggish gathering, make temperature in the furnace increase, further make multiple fuel fully burn, the fuel of fully burning not only makes the solid smoke and dust in the tail gas have obviously descended, black tail gas's emission has been reduced, the fuel of fully burning still makes elements such as N, S, C in the tail gas fully burn in addition, the life of SOx/NOx control equipment has been prolonged, accord with the environmental protection standard.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection boiler, more specifically the environmental protection boiler for industrial production who covers multiple fuels such as living beings, coal, timber that says so relates to one kind more.
Background
At present, the biomass resources in China are rich, and the development and utilization prospects of the biomass energy are wide. The total biomass resource is about 4.6 million tons of standard coal per year. According to the thirteen-five program for biomass energy development published by the national energy agency 2016, in 2020, biomass energy needs to be basically utilized commercially and in large scale, and annual utilization amount is about 5800 million tons of standard coal, which only accounts for 12.6% of annual available amount. From the energy planning of 10-30 years in the future, although people have different recognitions on the exhaustion of fossil energy, coal still occupies the main position in primary energy consumption in China, and the large amount of use of fossil energy has severe pressure on environmental changes.
In some industrial parks, the centralized heating of enterprises entering the park is a trend in development from the aspects of environmental protection and use efficiency. At present, the industrial boiler is generally applied to centralized heat supply, most of the industrial boilers are grate-fired boilers, fuel is placed on a fixed grate or a movable grate to form a uniform material layer with a certain thickness, air is introduced from the bottom of the grate and fully combusted and reacts through a fuel layer, and the boiler is widely adopted by large and medium-sized enterprises due to the advantages of simple operation, high mechanization degree, convenient operation and maintenance and the like, is an important energy utilization device in the fields of China industry and centralized heat supply, consumes about 4 hundred million tons of standard coal annually and accounts for 15 percent of the total coal consumption in China.
The biomass energy is an important new energy, is directly or indirectly from photosynthesis of plants, and has the characteristics of green, low carbon, cleanness, safety, low cost, wide coverage, renewability and the like. The biomass fuel has the advantages of higher calorific value, environmental protection, renewability and the like.
However, the existing grate-fired boiler is mainly designed for using coal, the coal has the characteristics of high combustion value, large weight, small volume and high density, and less floating can be caused when air is introduced from the bottom of a grate, so that the coal can be fully combusted. When biomass is used as fuel, the biomass is easy to float upwards along with air introduced from the bottom of the grate due to the large volume and the small density of the biomass, so that the biomass is not combusted sufficiently, discharged flue gas contains particles which are not burnt out, and the environment is polluted. In addition, due to the low melting point of the biomass ash, the biomass ash is easy to coke, and the heat efficiency of the boiler is low. Due to the particularity of the biomass fuel, at present, although the emission of sulfur dioxide can reach the standard, nitrogen oxide, dust and the like cannot meet the requirement of environment-friendly emission, and equipment such as a smoke-gas separator and the like needs to be additionally added, and equipment investment is additionally increased.
Therefore, the problem to be solved by those skilled in the art is how to provide an environment-friendly boiler for industrial production, which can fully burn, has low nitrogen and high thermal efficiency and can cover various fuels such as biomass, coal, wood and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an environmental protection boiler for industrial production who covers multiple fuel such as living beings, coal, timber not only can use traditional fuel such as coal, can also effectively improve direct-fired biomass fuel's combustion efficiency to satisfy the flue gas emission requirement after the burning.
In order to achieve the purpose, the utility model adopts the following technical proposal,
a multi-fuel industrial environment-friendly boiler comprises a fuel hopper 1, a fire grate 2, a front arch 41, a front wall 42, a ceiling 43, a fire-blocking wall 51, a first rear arch 52, a second rear arch 53, a third rear arch 54, a smoke removal wall 55, a retaining wall 56 and a first ash blocking plate 71;
the front end of the boiler is provided with a fuel hopper 1, the lower part of the fuel hopper 1 is provided with a fire grate 2, and the fire grate 2 extends from the head part of the boiler to the tail part of the boiler;
a front arch 1 which is obliquely arranged is arranged in a hearth at the upper part of the fire grate 2 and at the rear part of the fuel hopper 1;
a front wall 42 which is vertically arranged is arranged at the tail part of the front arch 1; a ceiling 43 is arranged at the top of the front wall 42;
a fire blocking wall 51 which is vertically arranged is arranged on the right side of the front wall 42 in the hearth relative to the front wall 42, a first rear arch 52 which is obliquely arranged is arranged at the lower part of the fire blocking wall 51, a second rear arch 53 is arranged at the rear part of the first rear arch 52, and the tail part of the second rear arch 53 extends to the tail part of the fire grate 2;
a first smoke removal wall 55 which is vertically arranged relative to the fire barrier wall 51 is arranged on the right side of the fire barrier wall 51 in the hearth; the top of the first smoke removing wall 55 is connected with the ceiling 43;
a retaining wall 6 which is vertically arranged is arranged on the right side of the first smoke removing wall 55 in the hearth and opposite to the first smoke removing wall 55;
a flue is formed among the front wall 42, the fire-blocking wall 51, the first smoke-removing wall 55 and the retaining wall 6, and high-temperature gas passes through the flue and carries high-temperature energy;
a boiler heat exchanger 81 is arranged on the right side of the retaining wall 6, a steam outlet 9 is arranged at the top of the boiler heat exchanger 81, an upper boiler barrel 83 is arranged at the upper part of the boiler heat exchanger 81, and a lower boiler barrel 82 is arranged at the bottom of the boiler heat exchanger;
the right side of the boiler heat exchanger 81 is provided with a rear wall 10, and the top of the rear wall 10 is provided with a smoke outlet 101.
In order to obtain better technical effect, a plurality of cigarette folding plates are arranged on the right side of the retaining wall 6; the adjacent smoke folding plates are arranged in a staggered mode, an S-shaped flue is formed between the smoke folding plates, and the boiler heat exchangers 81 are distributed in the S-shaped flue;
in order to obtain better technical effect, an ash hopper 73 is also arranged, and the ash hopper 73 is arranged at the lower bent part of the S-shaped flue and used for discharging the smoke dust deposited when the smoke dust passes through the S-shaped flue;
in order to obtain better technical effect, the fire-blocking wall comprises a vertical slideway and a horizontal slideway, the fire-blocking wall 51, the first rear arch 52 and the second rear arch 53 are respectively connected through hinges, the fire-blocking wall 51 moves up and down along the vertical slideway, and the tail end of the second rear arch 53 moves back and forth along the horizontal slideway;
for better technical effect, a third rear arch 54 is also provided, and the tail part of the second rear arch 53 is connected with the third rear arch 54 through a hinge;
in order to obtain better technical effect, the front arch 1 and the fire grate 2 form an included angle of 30-45 degrees, and the first rear arch 52 and the fire grate 2 form an included angle of 45-60 degrees; the second rear arch 53 and the fire grate 2 form an included angle of 5-15 degrees; the third rear arch 54 is arranged in parallel with the grate 2;
in order to obtain better technical effect, a first ash baffle 71 is also arranged, a first ash baffle 71 is arranged between the second rear arch 53 and the retaining wall 6, and the first ash baffle 71 blocks the smoke entering the flue;
in order to obtain better technical effect, a second ash baffle 72 is also arranged, a second ash baffle 72 is arranged between the retaining wall 6 and the adjacent smoke baffle, and the second ash baffle 72 stops the smoke dust entering the S-shaped flue;
in order to obtain better technical effect, the coal economizer is also arranged, the air inlet end of the coal economizer is connected with the smoke outlet 101, and the water entering the upper boiler barrel 83 and the lower boiler barrel 82 is preheated;
in order to obtain better technical effect, the system is also provided with a preheater, wherein the air inlet end of the preheater is connected with the air outlet end of the economizer to preheat the air before entering the boiler.
The utility model discloses simple structure, preceding arch 41 first back arch 52, second back arch 53 and third back arch 54 form the back taper, the steam that is favorable to the multiple fuel of burning on the grate 2 to produce gathers, because preceding wall 42, fire-protecting wall 51, first smoke wall 55 of tearing open, it has many 180 turnings to form the flue between the barricade 6 for the steam flow resistance of gathering increases, and then the steam heat dissipation of sluggish gathering, make the temperature increase in the furnace, further make multiple fuel fully burn, the fuel of fully burning not only makes the solid smoke and dust in the tail gas have obviously descended, the emission of black tail gas has been reduced, the fuel of fully burning still makes elements such as N, S, C in the tail gas fully burn in addition, the life of SOx/NOx control equipment has been prolonged, accord with the environmental protection standard of continuous improvement.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
1-a fuel hopper; 2-a grate; 3-furnace door; 41-front arch; 42-front wall; 43-ceiling; 51-a firestop wall; 52. 53, 54-rear arch; 55-detaching the smoke wall; 6-retaining wall; 71-a first dust barrier; 72-a second ash baffle; 73-ash bucket; 81-heat exchanger; 82, putting the pot into a barrel; 83-putting on a pot barrel; 9-a steam outlet; 10-rear wall; 101-smoke outlet.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings and examples.
A multi-fuel industrial environment-friendly boiler comprises a fuel hopper 1, a fire grate 2, a front arch 41, a front wall 42, a ceiling 43, a fire-blocking wall 51, a first rear arch 52, a second rear arch 53, a third rear arch 54, a smoke removal wall 55, a retaining wall 56 and a first ash blocking plate 71;
the front end of the boiler is provided with a fuel hopper 1, the lower part of the fuel hopper 1 is provided with a fire grate 2, and the fire grate 2 extends from the head part of the boiler to the tail part of the boiler;
a front arch 1 which is obliquely arranged is arranged in a hearth at the upper part of the fire grate 2 and at the rear part of the fuel hopper 1;
a front wall 42 which is vertically arranged is arranged at the tail part of the front arch 1; a ceiling 43 is arranged at the top of the front wall 42;
a fire blocking wall 51 which is vertically arranged is arranged on the right side of the front wall 42 in the hearth relative to the front wall 42, a first rear arch 52 which is obliquely arranged is arranged at the lower part of the fire blocking wall 51, a second rear arch 53 is arranged at the rear part of the first rear arch 52, and the tail part of the second rear arch 53 extends to the tail part of the fire grate 2;
a first smoke removal wall 55 which is vertically arranged relative to the fire barrier wall 51 is arranged on the right side of the fire barrier wall 51 in the hearth; the top of the first smoke removing wall 55 is connected with the ceiling 43;
a retaining wall 6 which is vertically arranged is arranged on the right side of the first smoke removing wall 55 in the hearth and opposite to the first smoke removing wall 55;
a flue is formed among the front wall 42, the fire-blocking wall 51, the first smoke-removing wall 55 and the retaining wall 6, and high-temperature gas passes through the flue and carries high-temperature energy;
a first dust baffle 71 is further arranged, a first dust baffle 71 is arranged between the second rear arch 53 and the retaining wall 6, and the first dust baffle 71 prevents smoke dust from entering a flue;
a plurality of cigarette folding plates are arranged on the right side of the retaining wall 6; the adjacent cigarette folding plates are arranged in a staggered manner, and an S-shaped flue is formed between the cigarette folding plates; the right side of the retaining wall 6 is also provided with a boiler heat exchanger 81, and the boiler heat exchanger 81 is distributed in the S-shaped flue;
a second ash baffle 72 is arranged between the retaining wall 6 and the adjacent smoke folding plate, and the second ash baffle 72 stops smoke dust from entering the S-shaped flue;
an ash hopper 73 is arranged at the lower bent part of the S-shaped flue and used for discharging the smoke dust deposited when the smoke dust passes through the S-shaped flue;
the top of the boiler heat exchanger 81 is provided with a steam outlet 9, the upper part of the boiler heat exchanger is provided with an upper boiler barrel 83, and the bottom of the boiler heat exchanger is provided with a lower boiler barrel 82;
a rear wall 10 is arranged on the right side of the boiler heat exchanger 81, and a smoke outlet 101 is arranged at the top of the rear wall 10;
the gas inlet end of the economizer is connected with the smoke outlet 101, and the water entering the upper boiler barrel 83 and the lower boiler barrel 82 is preheated;
and the air inlet end of the preheater is connected with the air outlet end of the economizer, so that air before entering the boiler is preheated, and the preheated air is blown upwards from the lower part of the fire grate 2, so that various fuels such as biomass, coal, wood and the like on the fire grate 2 are fully combusted.
In order to obtain better technical effect and adapt to the requirements of different production working conditions and different combustion qualities, the utility model also comprises a vertical slideway and a horizontal slideway, the fire-blocking wall 51, the first rear arch 52 and the second rear arch 53 are respectively connected by hinges, the fire-blocking wall 51 moves up and down along the vertical slideway, and the tail end of the second rear arch 53 moves back and forth along the horizontal slideway;
a third rear arch 54 is also arranged, and the tail part of the second rear arch 53 is connected with the third rear arch 54 through a hinge;
the front arch 1 and the fire grate form an included angle of 30-45 degrees, and the first rear arch 52 and the fire grate form an included angle of 45-60 degrees; the fire grate of the second rear arch 53 forms an included angle of 45-60 degrees and an included angle of 5-15 degrees; the third rear arch 54 is horizontally disposed;
the utility model discloses simple structure, preceding arch 41 first back arch 52, second back arch 53 and third back arch 54 form the back taper, the steam that is favorable to the multiple fuel of burning on the grate 2 to produce gathers, because preceding wall 42, fire-protecting wall 51, first smoke wall 55 of tearing open, it has many 180 turnings to form the flue between the barricade 6 for the steam flow resistance of gathering increases, and then the steam heat dissipation of sluggish gathering, make the temperature increase in the furnace, further make multiple fuel fully burn, the fuel of fully burning not only makes the solid smoke and dust in the tail gas have obviously descended, the emission of black tail gas has been reduced, the fuel of fully burning still makes elements such as N, S, C in the tail gas fully burn in addition, the life of SOx/NOx control equipment has been prolonged, accord with the environmental protection standard of continuous improvement. When the amount of externally required steam is changed to adjust the fuel consumption or fuel with different combustion values is used, the height of the fire-blocking wall 51 and the opening angle of the first rear arch 52 can be adjusted through the vertical slideway and the horizontal slideway, so that the temperature in the flue is ensured to be stable by increasing the wind resistance and gathering the fuel combustion range.
Adopt the utility model discloses the product, under the low operating mode with during the different combustion value fuel of burning, the temperature in the flue is than commercial boiler height more than 100 ℃, can ensure that fuel burns completely, and the harmful substance that contains burns fully avoids discharging into the atmosphere, because flue air resistance increases, the trace solid particle in the flue gas also can obtain complete combustion, does not exempt from to cause dust pollution, has also reduced environmental protection equipment's input in addition, has reduced manufacturing cost.
Claims (10)
1. A multi-fuel industrial environment-friendly boiler is characterized by comprising a fuel hopper, a fire grate, a front arch, a front wall, a ceiling, a fire-blocking wall, a first rear arch, a second rear arch, a third rear arch, a smoke-removing wall, a retaining wall and a first ash-blocking plate;
the front end of the boiler is provided with a fuel hopper, the lower part of the fuel hopper is provided with a fire grate, and the fire grate extends from the head part of the boiler to the tail part of the boiler;
a front arch which is obliquely arranged is arranged in the hearth at the upper part of the fire grate and the rear part of the fuel hopper;
a vertically arranged front wall is arranged at the tail part of the front arch; the top of the front wall is provided with a ceiling;
a fire blocking wall which is vertically arranged is arranged on the right side of a front wall in a hearth relative to the front wall, a first rear arch which is obliquely arranged is arranged at the lower part of the fire blocking wall, a second rear arch is arranged at the rear part of the first rear arch, and the tail part of the second rear arch extends to the tail part of a fire grate;
a first smoke removal wall which is vertically arranged relative to the fire blocking wall is arranged on the right side of the fire blocking wall in the hearth; the top of the first smoke removing wall is connected with a ceiling;
a retaining wall which is vertically arranged is arranged on the right side of the first smoke removing wall in the hearth and opposite to the first smoke removing wall;
a flue is formed among the front wall, the fire-blocking wall, the first smoke removal wall and the retaining wall, and high-temperature gas passes through the flue and carries high-temperature energy;
the right side of the retaining wall is provided with a boiler heat exchanger, the top of the boiler heat exchanger is provided with a steam outlet, the upper part of the boiler heat exchanger is provided with an upper boiler barrel, and the bottom of the boiler heat exchanger is provided with a lower boiler barrel;
the right side of the boiler heat exchanger is provided with a rear wall, and the top of the rear wall is provided with a smoke outlet.
2. The multi-fuel industrial environment-friendly boiler according to claim 1, wherein a plurality of baffle plates are provided on the right side of the baffle wall; the adjacent cigarette folding plates are arranged in a staggered mode, an S-shaped flue is formed between the cigarette folding plates, and the boiler heat exchangers are distributed in the S-shaped flue.
3. The multi-fuel industrial environment-friendly boiler as claimed in claim 2, further comprising an ash hopper provided at a lower bend of the S-shaped flue for discharging soot deposited while passing through the S-shaped flue.
4. The multi-fuel industrial environment-friendly boiler as claimed in claim 2, further comprising a second ash blocking plate, wherein a second ash blocking plate is provided between the baffle wall and the adjacent smoke baffle plate, and the second ash blocking plate blocks the smoke entering the S-shaped flue.
5. The multi-fuel industrial environment-friendly boiler according to claim 1 or 2, further comprising a vertical chute and a horizontal chute, wherein the fire-blocking wall, the first rear arch and the second rear arch are respectively connected by a hinge, the fire-blocking wall moves up and down along the vertical chute, and the rear end of the second rear arch moves back and forth along the horizontal chute.
6. A multi-fuel industrial environment-friendly boiler as claimed in claim 1 or 2, further comprising a third rear arch, and an end portion of the second rear arch is connected to the third rear arch by a hinge.
7. The multi-fuel industrial environment-friendly boiler according to claim 6, wherein the front arch forms an angle of 30-45 ° with the grate, and the first rear arch forms an angle of 45-60 ° with the grate; the second rear arch and the fire grate form an included angle of 5-15 degrees; the third rear arch is arranged in parallel with the grate.
8. The multi-fuel industrial environment-friendly boiler according to claim 1 or 2, further comprising a first ash blocking plate, wherein the first ash blocking plate is disposed between the second rear arch and the retaining wall, and the first ash blocking plate blocks the smoke introduced into the flue.
9. The multi-fuel industrial environment-friendly boiler according to claim 1 or 2, further comprising an economizer, wherein an inlet end of the economizer is connected with a smoke outlet to preheat water entering the upper and lower drums.
10. The multi-fuel industrial environment-friendly boiler according to claim 1 or 2, further comprising a preheater, wherein an inlet end of the preheater is connected to an outlet end of the economizer to preheat air before entering the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022340875.XU CN213930871U (en) | 2020-10-20 | 2020-10-20 | Multi-fuel industrial environment-friendly boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022340875.XU CN213930871U (en) | 2020-10-20 | 2020-10-20 | Multi-fuel industrial environment-friendly boiler |
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| Publication Number | Publication Date |
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| CN213930871U true CN213930871U (en) | 2021-08-10 |
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| CN202022340875.XU Active CN213930871U (en) | 2020-10-20 | 2020-10-20 | Multi-fuel industrial environment-friendly boiler |
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| CN (1) | CN213930871U (en) |
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- 2020-10-20 CN CN202022340875.XU patent/CN213930871U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20230625 Address after: 330321 Xinghuo Industrial Park, Yunshan Economic Development Zone, Yongxiu County, Jiujiang City, Jiangxi Province Patentee after: Jiangxi Dachang Biomass Heating Co.,Ltd. Address before: 330006 No. 23, hengzi street, Xihu District, Nanchang City, Jiangxi Province Patentee before: Wan Hui |