CN210065678U - Gas distribution system and gasification furnace with same - Google Patents
Gas distribution system and gasification furnace with same Download PDFInfo
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- CN210065678U CN210065678U CN201920395695.6U CN201920395695U CN210065678U CN 210065678 U CN210065678 U CN 210065678U CN 201920395695 U CN201920395695 U CN 201920395695U CN 210065678 U CN210065678 U CN 210065678U
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- 238000002309 gasification Methods 0.000 title claims abstract description 194
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 82
- 230000009471 action Effects 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 239000002893 slag Substances 0.000 claims abstract description 11
- 230000001939 inductive effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000036632 reaction speed Effects 0.000 abstract description 5
- 230000035484 reaction time Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 49
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a gas distribution system and have its gasifier, gas distribution system includes: and the induced draft fan is communicated with the gasification furnace. The water distributor also comprises a water dropper which is used for containing water used as the gasifying agent and introducing the water into the gas distribution system. The air distribution device also comprises an air distribution hopper with a conical outer wall surface, and air introduced by the induced draft fan passes through the side wall of the air distribution hopper and enters the inner cavity of the air distribution hopper so as to be uniformly distributed to the inner cavity of the air distribution hopper and the upper part of the inner cavity. Water introduced by the water dropper is heated and evaporated outside the side wall of the air distribution hopper to become water vapor, and the water vapor passes through the side wall of the air distribution hopper under the action of air and enters the inner cavity of the air distribution hopper. The gasification furnace also comprises a gas distribution disc, wherein the gas distribution disc is used for enabling ash and slag generated by material combustion to continuously pass through and then fall into an ash storage box below the gasification furnace, and the gas distribution disc is communicated with an induced draft fan so that air enters the gas distribution disc and then is delivered into the gasification cavity. The utility model discloses a gasification furnace can solve the easy technical problem who appears "gasification reaction speed is slow, the quality is low and the equilibrium is poor" of large-scale gasifier gasification reaction time.
Description
Technical Field
The utility model relates to a gasifier field especially relates to a gas distribution system. Furthermore, the utility model discloses still relate to a gasifier including above-mentioned gas distribution system.
Background
The existing large-scale updraft type gasification furnace generally adopts a gas distribution box to distribute gas for gasification reaction. The gas distribution box is of a box-shaped structure and is arranged on the ash outlet end of the gasification furnace, and gas distribution holes for allowing air to enter the gasification furnace are formed in the upper surface of the gas distribution box, which is in contact with the materials.
Because the large-scale gasification furnace can contain a large amount of materials to be gasified, especially when the materials contain more carbide-containing materials, if the gas distribution box is used for distributing gas, the technical problems of low gasification speed and low gasification quality are easy to occur; because the gas distribution box is used for distributing gas in a plane, and the diameter of a large-sized gasification furnace is larger, the problem of poor gasification reaction equilibrium is easy to occur, and materials in the gasification furnace are easy to form 'vacant positions'; in addition, the gas distribution box is of a box-shaped structure, so that ash generated in the gasification reaction is inconvenient to clean and difficult to continuously discharge, the stability of system operation is affected, and the large-scale gasification furnace is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gas distribution system and have its gasifier to solve the technical problem that current large-scale gasifier gasification reaction rate is slow, gasification quality and equilibrium are poor and go out the ash difficulty in succession.
The utility model adopts the technical scheme as follows:
the utility model provides a gas distribution system sets up in the ash discharge end of gasifier, and gas distribution system includes: the induced draft fan is communicated with the gasification furnace and is used for introducing air used as a gasification agent into the air distribution system; the water dropper is used for containing water used as a gasifying agent and introducing the water into the gas distribution system; the air distribution hopper is used for supporting materials in the gasification furnace, the air distribution hopper is provided with a conical outer wall surface, and air introduced by the induced draft fan passes through the side wall of the air distribution hopper and enters the inner cavity of the air distribution hopper so as to uniformly distribute air to the inner cavity of the air distribution hopper and above the inner cavity, thereby forming spatial three-dimensional air distribution; water introduced by the water dropper is heated and evaporated outside the side wall of the air distribution hopper to become water vapor, and the water vapor passes through the side wall of the air distribution hopper under the action of air and enters the inner cavity of the air distribution hopper; the gas distribution plate is used for assisting in supporting materials in the gasification furnace and enabling ash slag generated by material combustion to continuously pass through and fall into the ash storage box below, and the gas distribution plate is communicated with the induced draft fan so that air enters the gas distribution plate and then is uniformly and dispersedly distributed into the gasification cavity of the gasification furnace under the action of the gas distribution plate.
Furthermore, the gas distribution hopper is funnel-shaped, the necking end of the gas distribution hopper faces downwards and is supported on an annular support plate at the ash outlet end of the gasification furnace, the flaring end of the gas distribution hopper faces upwards and is abutted against the inner side wall of the gasification furnace, and the gas distribution hopper is matched with the inner side wall of the gasification furnace and the annular support plate to form a spatial three-dimensional gas distribution cavity; the induced draft fan and the water dropper are respectively communicated with the air distribution cavity; a plurality of first air distribution holes penetrating through the side wall are formed in the side wall of the air distribution hopper, and water vapor in the air distribution cavity is uniformly and dispersedly distributed into the gasification cavity of the gasification furnace under the action of air through the first air distribution holes.
Further, the water dropper comprises a water bucket for containing water, a water conduit for communicating the water bucket and the air distribution chamber; the water diversion pipe is fixed on the side wall of the gasification furnace, the water inlet end of the water diversion pipe is communicated with the water containing barrel, and the water outlet end of the water diversion pipe penetrates through the side wall of the gasification furnace and then extends into the air distribution cavity.
Furthermore, the induced air fan is connected with an induced air pipe for introducing air into the air distribution cavity, the induced air pipe is fixed on the side wall of the gasification furnace, and the air outlet end of the induced air pipe penetrates through the side wall of the gasification furnace and then extends into the air distribution cavity; a first switch for controlling the on-off of the induced duct is arranged in the pipeline of the induced duct; a second switch for controlling the on-off of the water conduit is arranged in the pipeline of the water conduit.
Furthermore, the plurality of first air distribution holes are uniformly distributed on the side wall of the air distribution hopper, and the air distribution direction of each first air distribution hole faces to the materials in the gasification furnace.
Furthermore, the gas distribution plate comprises a gas distribution pipe network extending into the lower part of the inner hole of the annular support plate, the gas distribution pipe network is used for assisting in supporting materials in the gasification furnace and enabling ash slag generated by the combustion of the materials to continuously pass through and fall into the ash storage box, and the gas distribution pipe network is communicated with the induced draft fan so as to introduce air into the gas distribution pipe network; the air distribution pipe network is provided with a plurality of through second air distribution holes, and the second air distribution holes are used for uniformly and dispersedly distributing the air introduced into the air distribution pipe network into the gasification cavity of the gasification furnace.
Furthermore, a plurality of second air distribution holes are uniformly distributed on the air distribution pipe network, and the air distribution direction of each second air distribution hole faces to the materials in the gasification furnace.
Furthermore, the air distribution pipe network comprises a plurality of air distribution pipes which are arranged at intervals in sequence, and each air distribution pipe is communicated with the air inducing fan respectively so as to allow air to enter the air distribution pipes; each air distribution pipe is provided with a plurality of second air distribution holes.
Furthermore, a plurality of air distribution pipes are sequentially arranged in a high-low mode in the vertical direction; each air distribution pipe is a corrugated pipe which is arranged in a corrugated manner in the vertical direction; the gas distribution pipe is a circular pipe, and the gas distribution direction of a second gas distribution hole on the gas distribution pipe is vertical to the material in the gasification furnace facing the gas distribution plate.
According to the utility model discloses an on the other hand still provides a gasifier, and the ash discharge end detachably of gasifier is equipped with the gas distribution system as in any one above-mentioned.
The utility model discloses following beneficial effect has:
the utility model discloses a gas distribution plate during operation is used for on the one hand carrying out the auxiliary stay to the material of treating gasification reaction in the gasifier, and on the other hand is used for distributing the gasification reaction of material, not only realizes distributing the gasification reaction in the gasifier, guarantees the homogeneity of gasification simultaneously, makes the material be difficult for forming "vacancy", and then improves the stability of system operation and the efficiency of gasification reaction; meanwhile, the gas distribution plate is also used for enabling ash generated by material combustion to continuously fall into the ash storage box below after passing through, so that the technical problem that the ash is difficult to clean in the gasification process of the gasification furnace is solved, the ash is continuously discharged from the furnace chamber in the gasification reaction process, and the stability of the system in the gasification process is improved. The utility model discloses a distribution fill during operation, on the one hand, be used as the supporting part of gasifier, in order to carry out the main supporting to the material in the gasifier, on the other hand is used for forming the three-dimensional distribution in space to the material in the gasifier, so that steam is by more even under the effect of air, distribute to the gasifier dispersedly, reduce the volume of air gasification agent, make the carbon reduction reaction in the carbide of carbon more violent, and then make the effective gas proportion increase in the mixed gas that the burning produced, the gas calorific value improves, finally improve gasification reaction rate and gasification reaction quality, guarantee the homogeneity of gasification simultaneously, make the material difficult to form "vacancy", solve the easy technical problem that "gasification reaction rate is slow, the quality is low and the equilibrium is poor" that appears when large-scale gasifier gasification reaction, further improve the stability of system operation and the efficiency of gasification reaction;
the utility model discloses a gasifier gasification reaction is fast, quality and homogeneity are good, the material is difficult for forming "vacancy", system operating stability and gasification reaction efficiency are high, and the lime-ash that the material burning produced can fall into the ash storage box who goes out the ash end automatically, solves the difficult technological problem of clearance of lime-ash in the gasifier gasification, realizes that gasification reaction in-process furnace chamber goes out the lime-ash in succession, and then improves the stability of gasification in-process system.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of a space structure of a gasification furnace according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional front view of the structure of FIG. 1;
FIG. 3 is a schematic cross-sectional top view of the structure of FIG. 1;
FIG. 4 is a schematic view of the air distribution hopper of FIG. 1;
fig. 5 is a schematic top view of the gas panel of fig. 1.
Description of the figures
10. A gasification furnace; 101. an annular support plate; 102. a gas distribution cavity; 20. a gas distribution hopper; 201. a first air distribution hole; 30. an induced draft fan; 40. a gas distribution plate; 401. a second air distribution hole; 41. a gas distribution pipe network; 410. a gas distribution pipe; 42. installing a pipe; 43. an air inlet pipe; 50. a dust storage box; 60. a water dropper; 61. a water containing barrel; 62. a water conduit; 63. a second switch; 70. an induced draft pipe; 80. a first switch.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 to 3, a preferred embodiment of the present invention provides a gas distribution system, which is disposed at the ash discharge end of the gasification furnace 10, and comprises: and the induced draft fan 30 is communicated with the gasification furnace 10, and is used for introducing air used as a gasification agent into the air distribution system. A water dropper 60 is also included for holding water for use as a gasification agent and for introducing the water into the gas distribution system. The gasifier also comprises an air distribution hopper 20 used for supporting materials in the gasifier 10, the air distribution hopper 20 is provided with a conical outer wall surface, and air introduced by the induced draft fan 30 passes through the side wall of the air distribution hopper 20 and enters the inner cavity of the air distribution hopper 20 so as to be uniformly distributed to the inner cavity of the air distribution hopper 20 and the upper part of the inner cavity, thereby forming spatial three-dimensional air distribution. The water introduced by the water dropper 60 is heated and evaporated outside the side wall of the air distribution hopper 20 to become water vapor, and the water vapor passes through the side wall of the air distribution hopper 20 under the action of air and enters the inner cavity of the air distribution hopper 20. The gasifier also comprises a gas distribution plate 40 which is used for assisting in supporting the materials in the gasifier 10 and enabling ash slag generated by the combustion of the materials to continuously pass through and fall into an ash storage box 50 below, wherein the gas distribution plate 40 is communicated with the induced draft fan 30, so that air is uniformly and dispersedly distributed into the gasification cavity of the gasifier 10 after entering the gas distribution plate 40 under the action of the gas distribution plate 40.
When the air distribution system of the utility model works, firstly, the channel of the induced air fan 30 for inducing air to the outside of the side wall of the air distribution hopper 20 and the channel of the water dropper 60 for leading water to the outside of the side wall of the air distribution hopper 20 are cut off, and the air introduced by the induced air fan 30 completely enters the air distribution disc 40 and is uniformly and dispersedly distributed into the gasification cavity of the gasification furnace 10 under the action of the air distribution disc 40; after a period of time, gradually opening a channel for leading air from the air-inducing fan 30 to the outer side wall of the air distribution hopper 20, introducing a part of air introduced by the air-inducing fan 30 into the air distribution disc 40, and then distributing the air into the gasification cavity of the gasification furnace 10 by the air distribution disc 40, introducing the other part of air out of the side wall of the air distribution hopper 20, and passing through the side wall of the air distribution hopper 20 to enter the inner cavity of the air distribution hopper 20 to form spatial three-dimensional air distribution so as to be uniformly and dispersedly distributed into the gasification furnace 10; after a period of time, a channel for guiding water from the water dropper 60 to the outside of the side wall of the air distribution hopper 20 is opened, water in the water dropper 60 is introduced to the outside of the side wall of the air distribution hopper 20 and is heated and evaporated to become water vapor serving as a gasifying agent, and the water vapor outside the side wall of the air distribution hopper 20 passes through the side wall of the air distribution hopper 20 under the action of air, enters the inner cavity of the air distribution hopper 20 and is uniformly and dispersedly distributed in the gasification cavity of the gasification furnace 10.
The utility model discloses a gas distribution plate 40 during operation is used for on the one hand carrying out the auxiliary bearing to the material of waiting gasification reaction in gasifier 10, and on the other hand is used for distributing the gasification reaction of material, not only realizes distributing the gasification reaction in gasifier 10, guarantees the homogeneity of gasification simultaneously, makes the material be difficult for forming "vacancy", and then improves the stability of system operation and the efficiency of gasification reaction; meanwhile, the gas distribution plate 40 is also used for enabling ash generated by material combustion to continuously pass through and then fall into the ash storage box 50 below, so that the technical problem that the ash is difficult to clean in the gasification process of the gasification furnace 10 is solved, the ash is continuously discharged from the furnace chamber in the gasification reaction process, and the improvement is further realizedStability of the system during gasification. The utility model discloses a distribution fill 20 during operation, on the one hand be used as the supporting part of gasifier 10, carry out the main supporting with the material to in the gasifier 10, on the other hand is used for forming the three-dimensional distribution in space to the material in the gasifier 10, so that steam is more even under the effect of air, distribute to the gasifier 10 dispersedly, reduce the volume of air gasification agent, make the carbon reduction reaction in the carbide, and then make the effective gas proportion increase in the mixed gas that the burning produced, wherein, combustible gas content increases to 10-25% from about 5% in the gas, the gas calorific value improves, the mixed gas calorific value is by the big calorie of original 1000/m3Increased to 1300-3Finally, the gasification reaction speed and the gasification reaction quality are improved, the uniformity of gasification is ensured, the materials are not easy to form vacant positions, the technical problems of low gasification reaction speed, low quality and poor balance which are easily caused in the gasification reaction of a large-scale gasification furnace are solved, and the stability of system operation and the efficiency of the gasification reaction are further improved.
Optionally, as shown in fig. 2 and 4, the air distribution hopper 20 is funnel-shaped, a reduced end of the air distribution hopper 20 faces downward and is supported on an annular support plate 101 at the ash discharge end of the gasifier 10, a flared end of the air distribution hopper 20 faces upward and abuts against the inner side wall of the gasifier 10, and the air distribution hopper 20 cooperates with the inner side wall of the gasifier 10 and the annular support plate 101 to form a spatial and three-dimensional air distribution chamber 102. The induced draft fan 30 and the water dropper 60 are respectively communicated with the air distribution chamber 102. The side wall of the air distribution hopper 20 is provided with a plurality of first air distribution holes 201 penetrating through the side wall, and the plurality of first air distribution holes 201 are used for enabling the water vapor in the air distribution cavity 102 to be uniformly and dispersedly distributed to the gasification cavity of the gasification furnace 10 under the action of the air. The air distribution hopper 20 is funnel-shaped, a necking end of the air distribution hopper 20 faces downwards and is supported on the annular support plate 101, and a flaring end of the air distribution hopper 20 faces upwards and is abutted against the inner side wall of the gasification furnace 10, so that the outer side wall of the air distribution hopper 20, the inner side wall of the gasification furnace 10 and the annular support plate 101 can form a spatial three-dimensional air distribution cavity 102, and a plurality of first air distribution holes 201 are processed on the side wall of the air distribution hopper 20, so that air or air and steam in the air distribution cavity 102 can form a spatial three-dimensional air distribution mode through the first air distribution holes 201, so that the air or air and steam are more uniformly and dispersedly distributed to an inner cavity of the gasification furnace 10 under the action of the air, and the technical problems of low gasification reaction speed, low quality and poor balance easily occurring in the gasification reaction of a large-scale gasification furnace are solved.
Alternatively, as shown in fig. 1 and 2, the water dropper 60 includes a tub 61 for containing water, a water conduit 62 for communicating the tub 61 and the air distribution chamber 102. The water conduit 62 is used for being fixed on the side wall of the gasification furnace 10, the water inlet end of the water conduit 62 is communicated with the water containing barrel 61, and the water outlet end of the water conduit 62 passes through the side wall of the gasification furnace 10 and then extends into the gas distribution chamber 102.
Further, as shown in fig. 1 and 2, the induced air blower 30 is connected with an induced air pipe 70 for introducing air into the air distribution chamber 102, the induced air pipe 70 is used for being fixed on the sidewall of the gasification furnace 10, and an air outlet end of the induced air pipe 70 penetrates through the sidewall of the gasification furnace 10 and then extends into the air distribution chamber 102. Preferably, as shown in fig. 1, a first switch 80 for controlling the on/off of the induced duct 70 is arranged in the pipeline of the induced duct 70. The conduit of the water conduit 62 is provided with a second switch 63 for controlling the on-off of the water conduit 62. The utility model discloses a distribution system during actual operation can only open first switch 80 or open first switch 80 and second switch 63 simultaneously according to concrete material type in the gasifier 10, satisfies the demand of actual gasification reaction to the gasification agent.
Optionally, as shown in fig. 4, the plurality of first air distribution holes 201 are uniformly distributed on the side wall of the air distribution hopper 20, and the air distribution direction of each first air distribution hole 201 faces to the material in the gasification furnace 10, so as to further ensure the uniformity of gasification, so that the material is not easy to form "vacancy", thereby improving the stability of the gasification reaction and the efficiency of the gasification reaction; the gas distribution direction of each first gas distribution hole 201 faces the materials in the gasification furnace 10, so that the gas distribution efficiency and the gas distribution effect on the materials are further improved.
Further, as shown in fig. 4, the plurality of first air distribution holes 201 are arranged in a concentric circle in the radial direction of the air distribution hopper 20, and the first air distribution holes 201 of two adjacent concentric circles are arranged in a staggered manner in the circumferential direction, so that the uniformity of gasification is further ensured, the material is not easy to form "vacancy", and further the stability of the gasification reaction and the efficiency of the gasification reaction are further improved.
Optionally, in another embodiment of the present invention (not shown in the drawings), the gas distribution hopper 20 is funnel-shaped, a reduced end of the gas distribution hopper 20 faces downward and is supported on the annular supporting plate 101 at the ash discharging end of the gasification furnace 10, and a flared end of the gas distribution hopper 20 faces upward and abuts against the inner side wall of the gasification furnace 10 to form a spatial three-dimensional gas distribution cavity 102 in cooperation with the inner side wall of the gasification furnace 10 and the annular supporting plate 101. The induced draft fan 30 and the water dropper 60 are respectively communicated with the air distribution chamber 102. The side wall of the air distribution hopper 20 is provided with a plurality of air distribution seams which penetrate through the side wall and are used for uniformly and dispersedly distributing the water vapor and the air in the air distribution cavity 102 into the gasification furnace 10. The air distribution hopper 20 is funnel-shaped, a necking end of the air distribution hopper 20 faces downwards and is supported on the annular support plate 101, and a flaring end of the air distribution hopper 20 faces upwards and is abutted against the inner side wall of the gasification furnace 10, so that the outer side wall of the air distribution hopper 20, the inner side wall of the gasification furnace 10 and the annular support plate 101 can form a spatial three-dimensional air distribution cavity 102, and air or air and steam in the air distribution cavity 102 can form a spatial three-dimensional air distribution mode through an air distribution seam, so that the air or air and steam are distributed into an inner cavity of the gasification furnace 10 more uniformly and dispersedly under the action of the air, and the technical problems of low gasification reaction speed, low quality and poor balance easily occurring in the gasification reaction of a large-scale gasification furnace are solved.
Furthermore, a plurality of gas distribution seams are sequentially arranged at intervals along the circumferential direction of the gas distribution hopper 20, and each gas distribution seam extends along the radial line of the gas distribution hopper 20, so that the uniformity of gasification is further ensured, the materials are not easy to form 'vacant positions', and the stability of the gasification reaction and the efficiency of the gasification reaction are further improved. Preferably, compared with the first gas distribution hole 201, the gas distribution seam can increase the gas distribution amount, meet the requirement on air in the gasification reaction process of the large-scale gasification furnace, and further improve the efficiency of the gasification reaction and the quality of the gasification reaction; a high-temperature-resistant grid net is arranged at each gas distribution seam to prevent ash slag generated by material combustion from falling into the gas distribution cavity 102 to influence the gas distribution quality of the gas distribution hopper 20.
Preferably, the utility model discloses in, the internal face of distribution fill 20 is equipped with a plurality of archs, changes to form the "built on stilts formula" support to the material, and the air of being convenient for is quicker, more abundant and disperse in the material more evenly, also can prevent simultaneously that the material from holding when on the internal face of distribution fill 20 that the situation of blockking up first distribution hole 201 from appearing, improves the stability and the homogeneity of distribution. Preferably, an included angle of 30-60 degrees is formed between the side wall of the air distribution hopper 20 and the annular support plate 101, and when the included angle between the air distribution hopper 20 and the annular support plate 101 is smaller than 30 degrees, the formed space three-dimensional air distribution effect is not obvious; when the included angle between the gas distribution hopper 20 and the annular support plate 101 is larger than 60 degrees, the amount of materials contained in the gasification furnace 10 can be reduced, and the gasification efficiency is reduced.
Alternatively, as shown in fig. 2 and 3, the air distribution plate 40 includes an air distribution pipe network 41 extending below the inner hole of the annular support plate 101, the air distribution pipe network 41 is used for assisting in supporting the material in the gasification furnace 10 and allowing ash slag generated by the combustion of the material to continuously pass through and fall into the ash storage box 50, and the air distribution pipe network 41 is communicated with the induced draft fan 30 to introduce air into the air distribution pipe network 41. The air distribution pipe network 41 is formed with a plurality of second air distribution holes 401 penetrating therethrough, and the second air distribution holes 401 are used to uniformly and dispersedly distribute the air introduced into the air distribution pipe network 41 into the gasification chamber of the gasification furnace 10. The gas distribution pipe network 41 is used for not only supporting the materials in the gasification furnace 10, but also distributing the gas for the gasification reaction of the materials, so that the air is uniformly and dispersedly distributed into the gasification furnace 10 through the second gas distribution holes 401, the uniformity of gasification is ensured, and the gas distribution pipe network 41 is also used for allowing the ash slag generated by the combustion of the materials to continuously pass through to fall into the ash storage box 50 below the gas distribution plate 40, thereby solving the technical problem that the ash slag is difficult to clean in the gasification process of the gasification furnace 10, realizing the continuous ash slag discharge of the furnace chamber in the gasification reaction process, and further improving the stability of the system in the gasification process.
Optionally, as shown in fig. 5, the plurality of second gas distribution holes 401 are uniformly distributed on the gas distribution pipe network 41, and the gas distribution direction of each second gas distribution hole 401 faces to the material in the gasification furnace 10, so as to further ensure the uniformity of gasification, so that the material is not easy to form "vacancy", thereby improving the stability of gasification reaction and the efficiency of gasification reaction; the gas distribution direction of each second gas distribution hole 401 faces the material in the gasification furnace 10, so that the gas distribution efficiency and the gas distribution effect on the material are further improved.
Further, as shown in fig. 5, the plurality of second air distribution holes 401 are arranged in concentric circles, and the second air distribution holes 401 of two adjacent concentric circles are arranged in a staggered manner in the circumferential direction, so that the uniformity of gasification is further ensured, the material is not easy to form "vacant sites", and further the stability of the gasification reaction and the efficiency of the gasification reaction are further improved.
Optionally, as shown in fig. 5, the air distribution pipe network 41 includes a plurality of air distribution pipes 410 sequentially arranged at intervals, and each air distribution pipe 410 is respectively communicated with the induced air fan 30 to allow air to enter the air distribution pipe 410. Each air distribution pipe 410 is provided with a plurality of second air distribution holes 401. Compared with the ' plate-type ' support of gas distribution box to the material, the utility model discloses in, gas distribution pipe network 41 is including many gas distribution pipes 410 that the interval was laid in proper order, thereby form the ' built on the shelf formula ' support to the material, it is quicker to be convenient for the air, more fully and more evenly disperse in the material, and then improve gasification reaction's in gasifier 10 efficiency and quality, more guarantee the homogeneity of gasification simultaneously, make the material difficult to form "vacancy", more importantly, the lime-ash that the material burning of being convenient for produced is passed through in order to fall into in the ash storage box 50 of below by the clearance between the adjacent gas distribution pipe 410, thereby solve the difficult technological problem of clearance of lime-ash in the gasification process of gasifier 10, realize that gasification reaction in-process furnace chamber goes out the lime-ash in succession, and then improve the stability of gasification in; in addition, the air distribution pipe 410 can reduce the weight of the air distribution plate compared with an air distribution box, and convenience in operation is improved.
Preferably, the plurality of air distribution pipes 410 are arranged in a vertical direction in a high-low mode in sequence, so that an 'overhead' support for materials is formed more easily, air can be dispersed in the materials more quickly, fully and uniformly, the situation that the second air distribution holes 401 are blocked due to the fact that the materials are supported on the air distribution pipes 410 can be prevented, and the stability and uniformity of air distribution are improved. Preferably, each air distribution pipe 410 is a corrugated pipe which is arranged in a wave shape in the vertical direction, so that an 'overhead' support for the material is formed more easily, air can be dispersed in the material more quickly, sufficiently and uniformly, and the situation that the material is supported on the air distribution pipe 410 to block the second air distribution hole 401 can be prevented, and the stability and uniformity of air distribution are improved. Preferably, the gas distribution pipe 410 is a circular pipe, and the gas distribution direction of the second gas distribution holes 401 on the gas distribution pipe 410 is perpendicular to the gas distribution plate 40 and faces the material in the gasification furnace 10. Compared with the plate-type support of the gas distribution box for the materials, when the gas distribution pipe 410 is a round pipe, the contact area with the materials can be reduced, so that the overhead support for the materials is easier to form, and the air is more rapidly, fully and uniformly dispersed in the materials; in addition, because the reaction temperature in the gasification furnace 10 is very high, compared with the gas distribution plate on the gas distribution box, the gas distribution pipe 410 is less prone to oxidation and deformation due to the fact that the contact area between the gas distribution pipe and the materials is reduced, and therefore the service life of the gas distribution plate can be prolonged.
Optionally, as shown in fig. 5, the air distribution plate 40 further includes a mounting tube 42 for mounting a plurality of air distribution tubes 410, and the mounting tube 42 is in communication with the induced draft fan 30. The connecting ends of the plurality of gas distribution pipes 410 are respectively communicated with the mounting pipe 42, and the free ends of the plurality of gas distribution pipes 410 are different in length so as to be adapted to the circular inner cavity structure of the gasification furnace 10. By installing the pipes 42, the air introduced by the induced draft fan 30 can be uniformly dispersed into the air distribution pipes 410, thereby improving the uniformity of air distribution of the air distribution pipes 410.
Preferably, the free ends of the plurality of air distribution pipes 410 are connected with air pipes respectively communicated with the plurality of air distribution pipes 410, the air pipes are arc pipes matched with the circular inner cavity of the gasification furnace 10, and the air outlet ends of the air distribution pipes 410 are communicated with each other through the arrangement of the air pipes, so that the uniformity of air distribution along the length direction in the air distribution pipes 410 is improved, and the uniformity of air distribution of the air distribution pipes is further improved.
Optionally, as shown in fig. 5, the air distribution plate 40 further includes an air inlet pipe 43 for introducing air into the installation pipe 42, and the air inlet pipe 43 extends outwardly from the gasification furnace 10. The air inlet end of the air inlet pipe 43 is connected with the induced draft fan 30, and the air outlet end of the air inlet pipe 43 is connected with the installation pipe 42.
Referring to fig. 1 to 3, a preferred embodiment of the present invention further provides a gasification furnace, and the ash discharge end of the gasification furnace 10 is detachably provided with the gas distribution system according to any one of the above embodiments. Because the utility model discloses a play ash end detachably of gasifier is equipped with as above-mentioned any one the gas distribution system, thereby the utility model discloses a gasifier gasification reaction is fast, quality and homogeneity are good, the material is difficult for forming "vacancy", system operating stability and gasification reaction efficiency are high, and the lime-ash that the material burning produced can fall into the ash storage box 50 of play ash end automatically in, solve the difficult technological problem of clearance of lime-ash in the gasification 10 gasification process of gasifier, realize gasification reaction in-process furnace chamber and go out the lime-ash in succession, and then improve the stability of gasification in-process system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a gas distribution system sets up in the ash removal end of gasifier (10), its characterized in that, gas distribution system includes:
the induced draft fan (30), the said induced draft fan (30) communicates with gasification oven (10), is used for introducing the air used as gasifying agent into the said air distribution system;
a water dropper (60) for containing water used as a gasifying agent and introducing the water into the gas distribution system;
the air distribution hopper (20) is used for supporting materials in the gasification furnace (10), the air distribution hopper (20) is provided with a conical outer wall surface, and air introduced by the air inducing fan (30) passes through the side wall of the air distribution hopper (20) and enters the inner cavity of the air distribution hopper (20) to be uniformly distributed to the inner cavity of the air distribution hopper (20) and the upper part of the inner cavity, so that spatial three-dimensional air distribution is formed; water introduced by the water dropper (60) is heated and evaporated outside the side wall of the air distribution hopper (20) to become water vapor, and the water vapor passes through the side wall of the air distribution hopper (20) under the action of air and enters the inner cavity of the air distribution hopper (20);
the gas distribution plate (40) is used for assisting in supporting materials in the gasification furnace (10) and enabling ash slag generated by material combustion to continuously pass through and then fall into an ash storage box (50) below, and the gas distribution plate (40) is communicated with the induced draft fan (30) so that air enters the gas distribution plate (40) and then is uniformly and dispersedly distributed into a gasification cavity of the gasification furnace (10) under the action of the gas distribution plate (40).
2. Air distribution system according to claim 1,
the gas distribution hopper (20) is funnel-shaped, a reducing end of the gas distribution hopper (20) faces downwards and is supported on an annular support plate (101) at an ash outlet end of the gasification furnace (10), a flaring end of the gas distribution hopper (20) faces upwards and is abutted against the inner side wall of the gasification furnace (10), and the gas distribution hopper (20) is matched with the inner side wall of the gasification furnace (10) and the annular support plate (101) to form a spatial three-dimensional gas distribution cavity (102);
the induced draft fan (30) and the water dropper (60) are respectively communicated with the air distribution cavity (102);
the side wall of the air distribution hopper (20) is provided with a plurality of first air distribution holes (201) penetrating through the side wall, and the plurality of first air distribution holes (201) enable water vapor in the air distribution cavity (102) to be uniformly and dispersedly distributed into the gasification cavity of the gasification furnace (10) under the action of air.
3. Air distribution system according to claim 2,
the water dropper (60) comprises a water bucket (61) for containing water, a water conduit (62) for communicating the water bucket (61) and the air distribution chamber (102);
the water diversion pipe (62) is fixed on the side wall of the gasification furnace (10), the water inlet end of the water diversion pipe (62) is communicated with the water containing barrel (61), and the water outlet end of the water diversion pipe (62) penetrates through the side wall of the gasification furnace (10) and then extends into the air distribution chamber (102).
4. Air distribution system according to claim 3,
the induced air fan (30) is connected with an induced air pipe (70) used for introducing air into the air distribution cavity (102), the induced air pipe (70) is fixed on the side wall of the gasification furnace (10), and the air outlet end of the induced air pipe (70) penetrates through the side wall of the gasification furnace (10) and then extends into the air distribution cavity (102);
a first switch (80) for controlling the on-off of the induced duct (70) is arranged in a pipeline of the induced duct (70);
and a second switch (63) for controlling the on-off of the water conduit (62) is arranged in the pipeline of the water conduit (62).
5. Air distribution system according to claim 2,
the plurality of first air distribution holes (201) are uniformly distributed on the side wall of the air distribution hopper (20), and the air distribution direction of each first air distribution hole (201) faces to the materials in the gasification furnace (10).
6. Air distribution system according to claim 2,
the gas distribution plate (40) comprises a gas distribution pipe network (41) extending into the lower part of the inner hole of the annular support plate (101), the gas distribution pipe network (41) is used for assisting in supporting materials in the gasification furnace (10) and enabling ash slag generated by material combustion to continuously pass through and fall into the ash storage box (50), and the gas distribution pipe network (41) is communicated with the air inducing fan (30) to introduce air into the gas distribution pipe network (41);
a plurality of through second air distribution holes (401) are processed on the air distribution pipe network (41), and the second air distribution holes (401) are used for enabling air introduced into the air distribution pipe network (41) to be uniformly and dispersedly distributed into a gasification cavity of the gasification furnace (10).
7. Air distribution system according to claim 6,
the plurality of second air distribution holes (401) are uniformly distributed on the air distribution pipe network (41), and the air distribution direction of each second air distribution hole (401) faces to the materials in the gasification furnace (10).
8. Air distribution system according to claim 7,
the air distribution pipe network (41) comprises a plurality of air distribution pipes (410) which are sequentially arranged at intervals, and each air distribution pipe (410) is respectively communicated with the induced draft fan (30) to allow air to enter the air distribution pipes (410);
a plurality of second air distribution holes (401) are arranged on each air distribution pipe (410).
9. Air distribution system according to claim 8,
the plurality of air distribution pipes (410) are arranged in a high-low mode in sequence in the vertical direction;
each air distribution pipe (410) is a corrugated pipe which is arranged in a wave shape in the vertical direction;
the gas distribution pipe (410) is a circular pipe, and the gas distribution direction of the second gas distribution holes (401) on the gas distribution pipe (410) is perpendicular to the gas distribution plate (40) and faces to the materials in the gasification furnace (10).
10. A gasifier, characterized in that the ash outlet end of the gasifier (10) is detachably provided with a gas distribution system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395695.6U CN210065678U (en) | 2019-03-27 | 2019-03-27 | Gas distribution system and gasification furnace with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395695.6U CN210065678U (en) | 2019-03-27 | 2019-03-27 | Gas distribution system and gasification furnace with same |
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| CN210065678U true CN210065678U (en) | 2020-02-14 |
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| CN201920395695.6U Expired - Fee Related CN210065678U (en) | 2019-03-27 | 2019-03-27 | Gas distribution system and gasification furnace with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003952A (en) * | 2019-03-27 | 2019-07-12 | 湖南人文科技学院 | Air distribution system and gasification furnace with it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110003952A (en) * | 2019-03-27 | 2019-07-12 | 湖南人文科技学院 | Air distribution system and gasification furnace with it |
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