CN211079058U - Water cooling bucket assembly - Google Patents
Water cooling bucket assembly Download PDFInfo
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- CN211079058U CN211079058U CN201922190534.6U CN201922190534U CN211079058U CN 211079058 U CN211079058 U CN 211079058U CN 201922190534 U CN201922190534 U CN 201922190534U CN 211079058 U CN211079058 U CN 211079058U
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- cooling bucket
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Abstract
The embodiment of the utility model discloses water-cooling bucket subassembly, water-cooling bucket subassembly include the reducing section and are located the straight section of thick bamboo section of reducing section below, and the reducing section is big-end-up's hourglass hopper-shaped, and the upper end of reducing section is provided with water-cooling bucket water outlet joint, and the lower extreme of reducing section is connected and feeds through with the upper end of straight section of thick bamboo, and the lower extreme of straight section of thick bamboo is provided with water-cooling bucket water inlet joint. The water-cooling bucket component has small volume and light weight, and can conveniently enter the gasifier from the slag discharging port only by removing the slag breaking machine connected below the slag discharging port of the gasifier, so that the optimal modification is realized without cutting off the shell of the existing refractory brick gasifier, and the purposes of improving the coal adaptability of the refractory brick gasifier and improving the components of the effective gas produced by the gasifier are achieved. Meanwhile, the upper refractory bricks are kept in the transformation process, so that the time of nearly one month for dismantling and re-bricking can be saved, and the transformation procedure is greatly simplified.
Description
Technical Field
The embodiment of the utility model provides a coal gasification technical field, concretely relates to water-cooling bucket subassembly.
Background
The entrained-flow bed gasification furnace is a gasification furnace with refractory bricks as a shell heat-insulating layer, and is commonly called a refractory brick gasification furnace. Due to the problem of coal adaptability of the refractory brick gasifier, the fire facing bricks and the arch top bricks need to be replaced every 8000h, while the conical bottom refractory bricks are replaced most frequently, the service life is usually less than 3000h, the long-period operation of the gasifier is restricted, and the brick replacement time is long. Simultaneously, in order to improve the composition of the effective gas of gasifier production, need strengthen the back mixing of buggy granule in the combustion chamber, this must need reduce the cinder notch size in order to increase the cinder notch pressure drop, but nevertheless lead to cinder notch department high temperature crude gas velocity of flow too high, quickened the wearing and tearing of the resistant firebrick of awl end more for the performance of resistant firebrick gasifier promotes and meets the bottleneck. Most production units can accept the replacement cycle of the gasifier facing bricks and the arch roof bricks, can retain the replacement cycle, avoid cutting the pressure-bearing shell, and are limited by downtime, a site and a frame, so that the condition of large-scale reconstruction construction is not adopted.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a water-cooling bucket subassembly to solve current resistant firebrick gasifier and have the brick time of trading long, the problem that the construction received the restriction of dead time, place, frame.
In order to realize the above-mentioned purpose, the embodiment of the utility model provides a water-cooling bucket subassembly, the water-cooling bucket subassembly includes the reducing section and is located the straight section of thick bamboo section of reducing section below, the reducing section is big-end-up's hourglass hopper-shaped, the upper end of reducing section is provided with water-cooling bucket water outlet joint, the lower extreme of reducing section with the upper end of straight section of thick bamboo section is connected and is communicate, the lower extreme of straight section of thick bamboo section is provided with water-cooling bucket water inlet joint.
Further, the diameter-changing section and the straight cylinder section are formed by surrounding a coil pipe and fins.
Furthermore, the diameter-changing section and the straight cylinder section are surrounded by special-shaped vertical pipes and fins.
Further, the inner wall of the water cooling bucket assembly is coated with a heat insulation layer.
Further, the reducing section and the straight section are integrally formed or are separately arranged and connected in series.
Correspondingly, the utility model also provides a method of transformation to current resistant firebrick gasifier, the method of transformation to current resistant firebrick gasifier includes following step:
step a, removing cone bottom refractory bricks in the existing refractory brick gasification furnace, and arranging a plurality of temporary supporting pieces on an original brick supporting plate at intervals to support upper refractory bricks;
b, welding a plurality of new brick supporting plates at intervals on the inner wall of the shell to support upper refractory bricks;
step c, removing the temporary supporting piece and dismantling the original brick supporting plate;
and d, fixedly connecting the top of the water-cooling bucket assembly with the lower surface of the new brick supporting plate.
Further, before performing the step d, a step d0 is also performed: the shell is provided with a water inlet pipe joint of the water cooling bucket and a steam outlet pipe joint of the water cooling bucket.
Further, after performing the step d, a step d1 is also performed: and connecting a water inlet connector of the water cooling bucket with an inlet pipe interface of the water cooling bucket, and connecting a water outlet connector of the water cooling bucket with an outlet pipe interface of the water cooling bucket.
Furthermore, the fixed connection position of the top of the water cooling bucket assembly and the lower surface of the new brick supporting plate needs to be welded in a sealing mode.
The embodiment of the utility model provides a have following advantage: the utility model discloses water-cooling fill subassembly is because small, light in weight, only need remove under the gasifier cinder notch broken sediment machine of connecting, can conveniently follow in the cinder notch gets into the gasifier down, realizes optimizing under the condition of not cutting off the casing of current resistant firebrick gasifier and reforms transform, reaches the coal type adaptability that improves resistant firebrick gasifier to and improve the purpose of the component of the effective gas of gasifier production. Meanwhile, the upper refractory bricks are kept in the transformation process, the time of nearly one month for dismantling and building bricks again can be saved, the transformation procedure is greatly simplified, the operation can be completed within the normal maintenance time, and the method can be widely popularized in all plants with stable production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort. The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic side view, a sectional structure, of a water bucket assembly according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a cross-sectional structure of a refractory brick gasifier before modification according to an embodiment of the present invention;
fig. 3 is a schematic side view sectional structure diagram of the modified firebrick gasifier provided in the embodiment of the present invention.
Description of reference numerals: 10. a water-cooled bucket assembly; 11. a diameter-changing section; 12. a straight cylinder section; 13. a water outlet joint of the water cooling bucket; 14. a water inlet joint of the water cooling bucket; 15. a thermal insulation layer; 20. a cone bottom refractory brick; 30. a housing; 31. a water inlet pipe joint of the water cooling bucket; 32. a water-cooling bucket steam-water outlet pipe joint; 40. an upper refractory brick; 50. The original brick supporting plate; 60. a new brick supporting plate.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the water cooling bucket assembly 10 comprises a reducing section 11 and a straight cylinder section 12 located below the reducing section 11, wherein the reducing section 11 is funnel-shaped with a large upper part and a small lower part, the funnel-shaped structure is favorable for reducing the size of a lower port of the reducing section 11, the smaller the size of the lower port is, the more the slag notch pressure drop is favorable for increasing, the back mixing of pulverized coal particles in a combustion chamber is enhanced, and the components of effective gas produced by a gasification furnace are further improved. The upper end of the reducing section 11 is provided with a water-cooling bucket water outlet joint 13, the lower end of the reducing section 11 is connected and communicated with the upper end of the straight cylinder section 12, and the lower end of the straight cylinder section 12 is provided with a water-cooling bucket water inlet joint 14. During operation, cooling water firstly flows into the straight barrel section 12 through the water inlet joint 14 of the water cooling bucket, then flows into the diameter-variable section 11, and finally flows out through the water outlet joint 13 of the water cooling bucket, and the temperature of the water cooling bucket assembly 10 is reduced by absorbing heat in the process. In this embodiment, the diameter-changing section 11 and the straight cylinder section 12 are surrounded by coils and fins, but the diameter-changing section 11 and the straight cylinder section 12 may also be surrounded by special-shaped vertical pipes and fins, and the diameter-changing section 11 and the straight cylinder section 12 are integrally formed or are separately arranged and connected in series. Further, in order to avoid that the combustion heat is taken away by the water in the water cooling bucket assembly 10, so that the hearth can reach the required gasification temperature, the inner wall of the water cooling bucket assembly 10 is coated with a heat insulation layer 15.
As shown in fig. 2 and 3, the present invention also provides a method for modifying an existing gasification furnace for refractory bricks, which comprises the following steps:
step a, removing the cone bottom refractory bricks 20 in the existing refractory brick gasification furnace, and arranging a plurality of temporary supporting pieces on the original brick supporting plate 50 at intervals to support the upper refractory bricks 40;
after the cone bottom refractory brick 20 is removed, the upper refractory brick 40 loses support, and in order to prevent the collapse of the upper refractory brick 40, a plurality of temporary supporting pieces need to be arranged on the original brick supporting plate 50 at intervals to support the upper refractory brick 40, at this time, the gravity of the upper refractory brick 40 is temporarily borne by the original brick supporting plate 50, and the purpose of the interval arrangement of the temporary supporting pieces is to facilitate the subsequent welding of a new brick supporting plate 60.
Step b, welding a plurality of new brick supporting plates 60 at intervals on the inner wall of the shell 30 to support the upper refractory bricks 40;
step c, removing the temporary supporting piece and dismantling the original brick supporting plate 50;
the weight of the upper refractory bricks 40 after welding of the new tile pallets 60 may be borne by the new tile pallets 60, thus requiring removal of the original tile pallets 50.
And d, fixedly connecting the top of the water cooling bucket assembly 10 of the embodiment with the lower surface of the new brick supporting plate 60.
The top of the water cooling bucket assembly 10 is connected with the lower surface of the new brick supporting plate 60 in a sealing welding mode, so that high-temperature gas in the hearth is prevented from escaping, and the over-temperature accident of the shell 30 is avoided. Because the water cooling bucket assembly 10 has small volume and light weight, only a slag breaking machine connected below a slag outlet of the gasification furnace needs to be removed, the water cooling bucket assembly can
Conveniently enter the gasification furnace from the slag discharging port, realize the optimization and reconstruction under the condition of not cutting off the shell of the existing refractory brick gasification furnace, and achieve the purposes of improving the coal adaptability of the refractory brick gasification furnace and improving the components of the effective gas produced by the gasification furnace. Meanwhile, the upper refractory bricks 40 are kept in the transformation process, so that the time of removing and building bricks again can be saved by about one month, the transformation procedure is greatly simplified, the operation can be completed within the normal maintenance time, and the method can be widely popularized in all stable production factories.
Further, step d0 is also performed before step d is performed: the shell 30 is provided with a water inlet pipe interface 31 of the water bucket and a steam outlet pipe interface 32 of the water bucket.
Further, step d1 is also performed after step d is performed: the water inlet joint 14 of the water cooling bucket is connected with the water inlet pipe interface 31 of the water cooling bucket, and the water outlet joint 13 of the water cooling bucket is connected with the steam-water outlet pipe interface 32 of the water cooling bucket.
The water bucket water inlet pipe connection 31 is connected to an external boiler water system, and external boiler water can be introduced into the water bucket assembly 10 through the water bucket water inlet pipe connection 31.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. The utility model provides a water-cooling bucket subassembly, its characterized in that, the water-cooling bucket subassembly includes the reducing section and is located the straight section of thick bamboo section of reducing section below, the reducing section is big-end-up's hourglass hopper-shaped, the upper end of reducing section is provided with water-cooling bucket water outlet joint, the lower extreme of reducing section with the upper end of straight section of thick bamboo is connected and is communicate, the lower extreme of straight section of thick bamboo is provided with water-cooling bucket water inlet joint.
2. The water bucket assembly of claim 1, wherein the diameter-changing section and the straight section are surrounded by a coil and fins.
3. The water bucket assembly of claim 1, wherein the reducer section and the straight section are surrounded by profiled vertical pipes and fins.
4. The water bucket assembly of claim 1, 2 or 3, wherein an inner wall of the water bucket assembly is coated with a thermal insulation layer.
5. The water bucket assembly of claim 4 wherein the reducer section is integrally formed with the straight section or both are separately provided and connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190534.6U CN211079058U (en) | 2019-12-06 | 2019-12-06 | Water cooling bucket assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922190534.6U CN211079058U (en) | 2019-12-06 | 2019-12-06 | Water cooling bucket assembly |
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| Publication Number | Publication Date |
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| CN211079058U true CN211079058U (en) | 2020-07-24 |
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| CN201922190534.6U Active CN211079058U (en) | 2019-12-06 | 2019-12-06 | Water cooling bucket assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804467A (en) * | 2019-12-06 | 2020-02-18 | 北京清创晋华科技有限公司 | Water cooling bucket assembly and method for improving existing refractory brick gasification furnace |
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2019
- 2019-12-06 CN CN201922190534.6U patent/CN211079058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804467A (en) * | 2019-12-06 | 2020-02-18 | 北京清创晋华科技有限公司 | Water cooling bucket assembly and method for improving existing refractory brick gasification furnace |
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