Slag moisture drying device for gasification slag blending combustion

Abstract

The utility model relates to the technical field of slag drying devices, in particular to a slag moisture drying device for gasification slag blending combustion, which comprises a bottom plate. The drying mechanism is arranged at the top of the bottom plate and is used for drying wet slag; and the shaking mechanism is arranged at the top of the bottom plate and is used for shaking untreated wet slag. The slag moisture drying device solves the problems that in the using process of an existing slag moisture drying device for gasification slag blending combustion, high-temperature hot air is usually used for drying, slag can be oxidized or volatilized at continuous high temperature, the quality of the dried slag is reduced, gas generated by the hot air is discharged outwards without being filtered in the drying process, and the drying effect is poor. The problems that slag ash contained in gas escapes into the air to pollute the external environment, the moisture in the slag is too large, the condition that the slag is bonded and agglomerated is caused, the slag cannot be shaken and dispersed, the moisture in the agglomerated slag cannot be effectively volatilized during drying, and the dryness of the slag is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag drying devices, in particular to a slag moisture drying device used for gasification slag blending and burning. Background Art

[0002] The blending of gasifier slag mainly involves the process of mixing the slag produced by the gasifier with coal and then burning it. However, the blending of gasifier slag will have a series of effects on the operation of the boiler. First of all, the fine slag of the gasifier has a high moisture content. After entering the furnace, it needs to absorb heat due to the gasification of the moisture, which will reduce the thermal efficiency of the boiler and may even cause the boiler to flame out. In addition, excessive moisture may also cause blockage of the boiler's coal feeding system, affecting the normal operation of the boiler. At the same time, after the fine slag of the gasifier is blended and burned, due to its high ash content and very small particle size, part of it is directly sucked into the tail flue before it can be burned, resulting in an increase in the amount of fly ash, which may make the existing ash conveying system unable to meet the operating conditions.

[0003] The existing slag moisture drying device used for gasification slag blending usually uses high-temperature hot air for drying during use. The slag will be oxidized or volatilized under continuous high temperature, resulting in changes in the chemical composition of the slag, which in turn affects its subsequent utilization value and reduces the quality of the slag after drying. In addition, during the drying process, the gas generated by the hot air is discharged to the outside without being filtered, causing the slag ash contained in the gas to escape into the air, polluting the external environment. In addition, the slag contains too much moisture, which will cause it to stick together and clump, and it cannot be shaken off. As a result, the moisture inside the clumped slag cannot be effectively volatilized during drying, reducing the dryness of the slag. Utility Model Content

[0004] The utility model aims to provide a slag moisture drying device for gasification slag blending to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag moisture drying device for gasification slag blending, comprising a bottom plate, a conveying mechanism arranged on the top of the bottom plate for conveying slag, and a support leg fixedly connected to the bottom of the bottom plate; further comprising: a drying mechanism arranged on the top of the bottom plate for drying wet slag, the drying mechanism comprising a drying cylinder arranged above the bottom plate, a driving assembly rotatably connected to the outer side of the drying cylinder, a stirring assembly for turning the slag during drying arranged inside the drying cylinder, a blowing assembly for adjusting the drying temperature and a filtering assembly for filtering dust discharged from the slag in the filter cylinder arranged on the top of the drying cylinder, a sliding rod for improving the rotation stability fixedly connected to the bottom of the drying cylinder, a guide groove arranged on the top of the bottom plate; a shaking mechanism arranged on the top of the bottom plate for shaking off the untreated wet slag, the shaking mechanism comprising a shell arranged above the bottom plate, a rotating assembly arranged inside the shell, a guide rod fixedly connected to the inner side of the shell, and a sieve plate slidably connected to the outer side of the guide rod.

[0006] Preferably, the stirring assembly comprises a fixed seat rotating on the bottom of the drying drum, one side of the fixed seat is fixedly connected to a fixed rod, and the outer side of the fixed rod is fixedly connected to a stirring blade and a scraper.

[0007] Preferably, the blowing assembly includes a temperature sensor fixed inside the drying cylinder, and a hot air blower and a cold air blower are arranged on the top of the drying cylinder.

[0008] Preferably, the filter assembly includes a frame arranged on the top of the drying drum, a slide groove is opened on the inner side of the frame, a filter is arranged on the inner side of the frame, a slider is fixedly connected to the outer side of the filter, and an exhaust port connected to the interior of the drying drum is arranged on one side of the frame.

[0009] Preferably, the rotating assembly includes a first motor fixed to one side of the housing, an output end of the first motor is fixedly connected to a first bevel gear, and an outer side of the first bevel gear is meshingly connected to a second bevel gear.

[0010] Preferably, the rotating assembly further comprises a connecting rod fixed to one side of the second bevel gear, and one end of the connecting rod is fixedly connected to a rotating block.

[0011] Preferably, the conveying mechanism includes a support frame fixed to the top of the base plate, a conveying bin is fixedly connected to the inner side of the support frame, and a second motor is provided at the bottom of the conveying bin.

[0012] Preferably, the conveying mechanism further comprises a spiral roller fixed to the output end of the second motor, and the interior of the conveying bin is respectively connected to a feed hopper and a discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides a blowing component to facilitate the control of the internal temperature of the slag during drying, thereby improving the quality of the slag after drying; provides a filtering component to facilitate the filtering of the slag in the gas generated by hot air, which will not pollute the external environment and improve the cleanliness of the working environment; provides a shaking mechanism to facilitate the shaking of the slag that is stuck together, so that the moisture in the slag can be effectively volatilized during drying and the dryness of the slag can be improved; provides a conveying mechanism to facilitate the uniform conveying of the slag, which will not cause accumulation in the next process; and through the closed conveying bin, the dust generated by the slag is not easy to enter the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a slag moisture drying device for gasification slag blending provided by the utility model;

[0016] Figure 2 A schematic diagram of the drying mechanism structure provided by the utility model;

[0017] Figure 3 A schematic diagram of the structure of the shaking mechanism provided by the utility model;

[0018] Figure 4 A schematic diagram of the structure of the conveying mechanism provided by the utility model;

[0019] Figure 5 This is a schematic diagram of the filter assembly structure provided by the utility model.

[0020] In the figure: 1, bottom plate; 2, drying mechanism; 21, drying cylinder; 22, driving assembly; 23, stirring assembly; 231, fixing seat; 232, fixing rod; 233, stirring blade; 234, scraper; 24, blowing assembly; 241, temperature sensor; 242, hot air blower; 243, cold air blower; 25, filtering assembly; 251, frame; 252, chute; 253, filter screen; 254, slider; 255, exhaust port; 26. Slide bar; 27. Guide groove; 3. Shaking mechanism; 31. Housing; 32. Rotating assembly; 321. First motor; 322. First bevel gear; 323. Second bevel gear; 324. Connecting rod; 325. Rotating block; 33. Guide rod; 34. Screen plate; 4. Conveying mechanism; 41. Support frame; 42. Conveying bin; 43. Second motor; 44. Spiral roller; 45. Feed hopper; 46. Discharge pipe; 5. Support legs. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-5 As shown, a slag moisture drying device for gasification slag blending combustion comprises a bottom plate 1, a conveying mechanism 4 arranged on the top of the bottom plate 1 for conveying slag, and a support leg 5 fixedly connected to the bottom of the bottom plate 1; it also comprises: a drying mechanism 2 arranged on the top of the bottom plate 1 for drying wet slag, the drying mechanism 2 comprises a drying drum 21 arranged above the bottom plate 1, the outer side of the drying drum 21 is rotatably connected to a driving component 22, the interior of the drying drum 21 is provided with a stirring component 23 for turning the slag during drying, and the top of the drying drum 21 is provided with a There are a blowing component 24 for adjusting the drying temperature and a filtering component 25 for filtering dust discharged from the slag in the filter cylinder. The bottom of the drying cylinder 21 is fixedly connected with a sliding rod 26 for improving the rotation stability, and a guide groove 27 is arranged on the top of the bottom plate 1; a shaking mechanism 3 is arranged on the top of the bottom plate 1 for shaking off the untreated wet slag, and the shaking mechanism 3 includes an outer shell 31 arranged above the bottom plate 1, and a rotating component 32 is arranged inside the outer shell 31, and a guide rod 33 is fixedly connected to the inside of the outer shell 31, and a sieve plate 34 is slidably connected to the outer side of the guide rod 33.

[0023] refer to Figure 1 , Figure 2 and Figure 5As shown, the stirring assembly 23 includes a fixed seat 231 rotating at the bottom of the drying cylinder 21, a fixed rod 232 is fixedly connected to one side of the fixed seat 231, and a stirring blade 233 and a scraper 234 are fixedly connected to the outer side of the fixed rod 232; the blowing assembly 24 includes a temperature sensor 241 fixed inside the drying cylinder 21, and a hot air blower 242 and a cold air blower 243 are arranged on the top of the drying cylinder 21; the filtering assembly 25 includes a frame 251 arranged on the top of the drying cylinder 21, and the inner part of the frame 251 is fixedly connected to the inner part of the drying cylinder 21. A slide groove 252 is provided on the side, a filter screen 253 is provided on the inner side of the frame 251, a slider 254 is fixedly connected to the outer side of the filter screen 253, and an exhaust port 255 connected to the inside of the drying cylinder 21 is provided on one side of the frame 251; by providing a driving assembly 22, it is convenient to drive the drying cylinder 21 to rotate, by providing a fixing seat 231, it is convenient for the drying cylinder 21 to rotate along the fixing seat 231, and by providing a fixing rod 232, it is convenient to fix the drying cylinder 21 on the outer side of the fixing rod 232 when the drying cylinder 21 rotates. The stirring blades 233 are used to stir the slag to increase the drying speed. The scraper 234 is provided to facilitate the scraping of the slag attached to the inside of the drying cylinder 21 when it rotates, which improves the cleanliness of the cylinder and saves raw materials. The blowing component 24 is provided to facilitate the rapid evaporation of moisture in the slag and the control of the temperature in the cylinder to prevent the quality of the slag raw material from being damaged due to excessive temperature, thereby ensuring the quality of the slag after drying. The filter 253 is provided to facilitate the filtering of the gas discharged from the drying cylinder 21 during the drying process, so that the slag ash contained in the gas is intercepted by the filter 253 and will not pollute the external environment, thereby improving the cleanliness of the working environment. The slider 254 and the slide chute 252 are provided to facilitate the disassembly, cleaning or replacement of the filter 253. The slide bar 26 and the guide groove 27 are provided to facilitate the slide bar 26 to slide on the inner side of the guide groove 27 to support the rotation of the drying cylinder 21, thereby improving the stability of the device.

[0024] refer to Figure 1 and Figure 3As shown, the rotating assembly 32 includes a first motor 321 fixed to one side of the housing 31, the output end of the first motor 321 is fixedly connected to the first bevel gear 322, and the outer side of the first bevel gear 322 is meshedly connected to the second bevel gear 323; the rotating assembly 32 also includes a connecting rod 324 fixed to one side of the second bevel gear 323, and one end of the connecting rod 324 is fixedly connected to a rotating block 325; by providing the first motor 321 and the first bevel gear 322, it is convenient to drive the second bevel gear 323 to drive the connecting rod 324 to rotate The slag is then transferred to the rotating block 325 through the holes on the sieve plate 34. ...

[0025] refer to Figure 1 and Figure 4 As shown, the conveying mechanism 4 includes a support frame 41 fixed to the top of the base plate 1, a conveying bin 42 is fixedly connected to the inner side of the support frame 41, and a second motor 43 is arranged at the bottom of the conveying bin 42; the conveying mechanism 4 also includes a spiral roller 44 fixed to the output end of the second motor 43, and the interior of the conveying bin 42 is respectively connected to a feed hopper 45 and a discharge pipe 46; by arranging the second motor 43, it is convenient to drive the spiral roller 44 to rotate, so that the slag entering the conveying bin 42 from the feed hopper 45 is transmitted upward to the discharge pipe 46, and then the slag is discharged into the outer shell 31 through the discharge pipe 46. By arranging the conveying mechanism 4, it is convenient to uniformly convey the slag, and the next process will not produce accumulation. Through the closed conveying bin 42, the dust generated by the slag is not easy to enter the outside.

[0026] Working principle: when in use, the slag is first injected into the feed hopper 45, and then the second motor 43 is started to drive the spiral roller 44 to rotate, so that the slag entering the conveying bin 42 is transmitted upward to the discharge pipe 46, and then the slag is discharged into the outer shell 31 through the discharge pipe 46, and then the first motor 321 is started, and then the second bevel gear 323 is driven to rotate through the first bevel gear 322. While the second bevel gear 323 rotates, the kinetic energy is transmitted to the rotating block 325 through the connecting rod 324. The rotation of the rotating block 325 will drive the sieve plate 34 to reciprocate in the vertical direction on the guide rod 33, and the up and down vibration of the sieve plate 34 will drive the slag material on the top to move continuously. The slag will fall through the holes and grooves on the sieve plate 34 during the vibration, which can effectively shake and separate the wet slag that is stuck together, making the wet slag loose, thereby improving the drying speed in subsequent processing. The raw materials enter the drying drum 21, and then the driving component 22 is started to drive the drying drum 21 to rotate along the fixed seat 231. While the drying drum 21 rotates, the stirring blades fixed on the outside of the fixed rod 232 turn the raw materials over to make them dry faster and more evenly. At the same time, the hot air blower 242 and the cold air blower 243 in the blowing component 24 work according to the temperature detected by the temperature sensor 241 to control the temperature in the drum to prevent the slag quality from being damaged by excessive temperature. After stirring and blowing drying, the quality of the dried slag raw materials is guaranteed. The gas in the drying process will be discharged outward through the exhaust port 255. The setting of the filter screen 253 intercepts the slag ash contained in the gas, which will not pollute the external environment and improve the cleanliness of the working environment. When the filter screen 253 needs to be disassembled, cleaned or replaced, the filter screen 253 is pulled from the slide groove 252, and the slider 254 fixed on its outside will slide in the slide groove 252, thereby improving the convenience of cleaning.

[0027] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A slag moisture drying device for gasification slag blending, comprising a base plate (1), a conveying mechanism (4) arranged on the top of the base plate (1) for conveying slag, and a support leg (5) fixedly connected to the bottom of the base plate (1); characterized in that: Also includes: A drying mechanism (2) is arranged on the top of the bottom plate (1) for drying wet slag, the drying mechanism (2) comprising a drying cylinder (21) arranged above the bottom plate (1), the outer side of the drying cylinder (21) is rotatably connected to a driving assembly (22), the interior of the drying cylinder (21) is provided with a stirring assembly (23) for turning the slag during drying, the top of the drying cylinder (21) is provided with a blowing assembly (24) for adjusting the drying temperature and a filtering assembly (25) for filtering dust discharged from the slag in the filtering cylinder, the bottom of the drying cylinder (21) is fixedly connected to a sliding rod (26) for improving rotation stability, and the top of the bottom plate (1) is provided with a guide groove (27); A shaking mechanism (3) is arranged on the top of the bottom plate (1) for shaking out untreated wet slag, the shaking mechanism (3) comprising a shell (31) arranged above the bottom plate (1), a rotating assembly (32) being arranged inside the shell (31), a guide rod (33) being fixedly connected to the inside of the shell (31), and a screen plate (34) being slidably connected to the outer side of the guide rod (33).

2. The slag moisture drying device for gasification slag blending according to claim 1, characterized in that: The stirring assembly (23) comprises a fixed seat (231) rotating at the bottom of the drying cylinder (21), a fixed rod (232) being fixedly connected to one side of the fixed seat (231), and a stirring blade (233) and a scraper (234) being fixedly connected to the outer side of the fixed rod (232).

3. The slag moisture drying device for gasification slag blending according to claim 1, characterized in that: The blowing assembly (24) comprises a temperature sensor (241) fixed inside the drying cylinder (21), and a hot air blower (242) and a cold air blower (243) are arranged on the top of the drying cylinder (21).

4. The slag moisture drying device for gasification slag blending according to claim 1, characterized in that: The filter assembly (25) comprises a frame (251) arranged on the top of the drying cylinder (21); a slide groove (252) is provided on the inner side of the frame (251); a filter screen (253) is provided on the inner side of the frame (251); a slider (254) is fixedly connected to the outer side of the filter screen (253); and an exhaust port (255) connected to the interior of the drying cylinder (21) is provided on one side of the frame (251).

5. The slag moisture drying device for gasification slag blending according to claim 1, characterized in that: The rotating assembly (32) comprises a first motor (321) fixed to one side of the housing (31); an output end of the first motor (321) is fixedly connected to a first bevel gear (322); and an outer side of the first bevel gear (322) is meshingly connected to a second bevel gear (323).

6. The slag moisture drying device for gasification slag blending according to claim 5, characterized in that: The rotating assembly (32) further comprises a connecting rod (324) fixed to one side of the second bevel gear (323), and one end of the connecting rod (324) is fixedly connected to a rotating block (325).

7. The slag moisture drying device for gasification slag blending according to claim 6, characterized in that: The conveying mechanism (4) comprises a support frame (41) fixed to the top of the base plate (1), a conveying bin (42) is fixedly connected to the inner side of the support frame (41), and a second motor (43) is arranged at the bottom of the conveying bin (42).

8. The slag moisture drying device for gasification slag blending according to claim 7, characterized in that: The conveying mechanism (4) further comprises a spiral roller (44) fixed to the output end of the second motor (43), and the interior of the conveying bin (42) is respectively connected to a feed hopper (45) and a discharge pipe (46).

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