Slag discharging device of fluidized bed gasification furnace

Abstract

The utility model discloses a fluidized bed gasification furnace deslagging device, which relates to the technical field of deslagging devices, and comprises a main body furnace and a conduction mechanism, the conduction mechanism for preventing slag blockage is arranged at the bottom of the main body furnace, and the conduction mechanism comprises a slag guide pipe, a second motor, a belt pulley, a spiral shaft, a rotating shaft, a stirring blade and a shifting rod, and a second motor is installed on one side of the exterior of the slag guide pipe, a belt wheel is installed at the front end of the second motor, and a spiral shaft is connected to one side of the lower portion of the belt wheel. Compared with an existing device, the slag discharging device of the fluidized bed gasification furnace has the advantages that through cooperation of all parts of the conduction mechanism, waste slag can be stirred and crushed, slag bodies can be well stirred and dredged under cooperation of a material stirring rod, and therefore the problems of blocking and clamping can be avoided when the slag bodies are gathered and fall down; therefore, the deslagging effect of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of slag discharge devices, in particular to a slag discharge device for a fluidized bed gasification furnace. Background Art

[0002] Fluidized bed gasifier uses gasification medium as fluidized medium to make biomass undergo gasification reaction in a suspended flow state. With the continuous development and innovation of biomass gasifiers, the energy of biomass gasifiers can be better utilized. Fluidized bed gasifiers often need to be equipped with slag discharge devices to clean the slag when working.

[0003] However, when the existing gasification furnace slag discharge device is used, the slag body cannot be well cleared during slag discharge, so that the slag body is easily blocked when it gathers and falls, which affects the slag discharge effect of the device.

[0004] Therefore, the existing structure and defects are studied and improved, and a slag removal device for a fluidized bed gasification furnace is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a slag removal device for a fluidized bed gasifier, so as to solve the problem that the existing slag removal device for a gasifier mentioned in the above background technology cannot well clear the slag body when discharging the slag, so that the slag body is easily blocked when it gathers and falls, thereby affecting the slag removal effect of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag discharge device for a fluidized bed gasification furnace, comprising a main furnace and a conduction mechanism, wherein the conduction mechanism for preventing slag blockage is arranged at the bottom of the main furnace, and the conduction mechanism comprises a slag guide pipe, a second motor, a pulley, a spiral shaft, a rotating shaft, an agitating plate and a material removal rod, a second motor is installed on the outer side of the slag guide pipe, and a pulley is installed on the front end of the second motor, a spiral shaft is connected to the lower side of the pulley, and a material removal rod is fixed to the outer surface of the spiral shaft, a rotating shaft is connected to the upper side of the pulley, and a stirring plate is fixed to the outer surface of the rotating shaft.

[0007] Furthermore, the second motor is rotationally connected to the spiral shaft via a pulley, and the second motor is rotationally connected to the rotating shaft via a pulley.

[0008] Furthermore, a slag removal mechanism for removing waste slag is provided at the lower part of the main furnace, and the slag removal mechanism includes a first motor and a threaded rod, and the output end of the first motor is connected to the threaded rod.

[0009] Furthermore, the slag removal mechanism also includes a receiving tray, and the receiving tray is arranged in the middle part of the outer side of the threaded rod.

[0010] Furthermore, the slag removal mechanism also includes a scraping edge, and the scraping edge is fixed on the upper part of the outer part of the receiving tray.

[0011] Furthermore, the slag removal mechanism also includes a slag falling bevel, and a slag falling bevel is provided in the middle of the surface of the receiving tray.

[0012] Compared with the prior art, the utility model provides a slag removal device for a fluidized bed gasification furnace, which has the following beneficial effects:

[0013] 1. The utility model can stir and crush the waste slag through the cooperation between the various parts of the transmission mechanism. With the cooperation of the material-push rod, the slag body can be stirred and dredged well, so as to avoid the problem of blockage and jamming when the slag body gathers and falls, thereby ensuring the slag discharge effect of the device;

[0014] 2. The utility model can assist the solidified slag to fall off and be discharged through the cooperation between the various parts of the slag removal mechanism. With the cooperation of the slag falling bevel, the waste slag can be concentratedly dropped to reduce the possibility of waste slag remaining in the main furnace, thereby further ensuring the slag discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall internal structure of a slag removal device for a fluidized bed gasification furnace according to the utility model;

[0016] Figure 2 The utility model is a slag removal device for a fluidized bed gasification furnace Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 The utility model is a slag removal device for a fluidized bed gasification furnace Figure 1 The enlarged structural diagram at B in the middle;

[0018] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of a receiving tray of a slag discharge device of a fluidized bed gasification furnace.

[0019] In the figure: 1. main furnace; 2. slag removal mechanism; 201. first motor; 202. threaded rod; 203. receiving tray; 204. scraping edge; 205. slag falling bevel; 3. conduction mechanism; 301. slag guide pipe; 302. second motor; 303. pulley; 304. screw shaft; 305. rotating shaft; 306. stirring blade; 307. material removal rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1 As shown, a slag discharge device for a fluidized bed gasification furnace comprises a main furnace 1 and a conduction mechanism 3, wherein the conduction mechanism 3 for preventing slag blockage is arranged at the bottom of the main furnace 1, and the conduction mechanism 3 comprises a slag guide pipe 301, a second motor 302, a pulley 303, a screw shaft 304, a rotating shaft 305, a stirring piece 306 and a material-pickup rod 307, wherein the second motor 302 is installed on one side of the outside of the slag guide pipe 301, and the pulley 303 is installed on the front end of the second motor 302, the screw shaft 304 is connected to the lower side of the pulley 303, and the material-pickup rod 307 is fixed to the outer surface of the screw shaft 304, the rotating shaft 305 is connected to the upper side of the pulley 303, and the stirring piece 306 is fixed to the outer surface of the rotating shaft 305, the second motor 302 is rotatably connected to the screw shaft 304 via the pulley 303, and the second motor 302 is rotatably connected to the rotating shaft 305 via the pulley 303;

[0023] The second motor 302 can drive the spiral shaft 304 to rotate, so that the waste slag in the main furnace 1 can be moved and discharged. The rotating shaft 305 can drive the stirring piece 306 to rotate together under the drive of the pulley 303, so that when the waste slag enters the position of the mouth of the slag guide pipe 301, the waste slag can be stirred and crushed. With the cooperation of the material-moving rod 307, the slag body can be stirred and dredged well, so that when the slag body gathers and falls, the problem of blockage and jamming can be avoided, thereby ensuring the slag discharge effect of the device.

[0024] like Figure 2-4As shown, a slag removing mechanism 2 for removing waste slag is arranged at the lower part of the interior of the main furnace 1, and the slag removing mechanism 2 comprises a first motor 201 and a threaded rod 202, the output end of the first motor 201 is connected to the threaded rod 202, the slag removing mechanism 2 also comprises a receiving tray 203, a receiving tray 203 is arranged in the middle part of the outer side of the threaded rod 202, the slag removing mechanism 2 also comprises a scraping edge 204, a scraping edge 204 is fixed on the upper part of the outer side of the receiving tray 203, the slag removing mechanism 2 also comprises a slag dropping bevel 205, a slag dropping bevel 205 is arranged in the middle part of the surface of the receiving tray 203, the first motor 201 and the threaded rod 202 can drive the receiving tray 203 and the scraping edge 204 to move up and down, so as to assist the solidified slag to fall off and be discharged, and with the cooperation of the slag dropping bevel 205, the waste slag can be concentratedly dropped into the slag guide pipe 301, so as to reduce the possibility of waste slag remaining in the main furnace 1, so as to further ensure the slag discharge effect.

[0025] Working principle: When using the fluidized bed gasification furnace slag discharge device, firstly, the first motor 201 and the threaded rod 202 can drive the receiving plate 203 and the scraper edge 204 to move up and down to assist the solidified slag to fall off and be discharged. Then, with the cooperation of the slag falling bevel 205, the waste slag can be concentrated and fall into the slag guide pipe 301. Subsequently, the second motor 302 can drive the spiral shaft 304 to rotate to move the waste slag in the main furnace 1 to be discharged. At this time, driven by the pulley 303, the rotating shaft 305 can drive the stirring piece 306 to rotate together. Then, when the waste slag enters the position of the slag guide pipe 301 mouth, the waste slag can be stirred and crushed. Finally, with the cooperation of the material removing rod 307, the slag can be well stirred and dredged.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slag removal device for a fluidized bed gasification furnace, comprising a main furnace (1) and a conduction mechanism (3), characterized in that: The conduction mechanism (3) for preventing slag blockage is arranged at the bottom of the main furnace (1), and comprises a slag guide pipe (301), a second motor (302), a pulley (303), a screw shaft (304), a rotating shaft (305), a stirring piece (306) and a material removal rod (307). The second motor (302) is installed on the outer side of the slag guide pipe (301), and the front end of the second motor (302) is installed with a pulley (303). The lower side of the pulley (303) is connected to the screw shaft (304), and the outer surface of the screw shaft (304) is fixed with a material removal rod (307). The upper side of the pulley (303) is connected to the rotating shaft (305), and the outer surface of the rotating shaft (305) is fixed with a stirring piece (306).

2. A slag removal device for a fluidized bed gasification furnace according to claim 1, characterized in that: The second motor (302) is rotationally connected to the screw shaft (304) via a pulley (303), and the second motor (302) is rotationally connected to the rotating shaft (305) via a pulley (303).

3. The slag removal device for a fluidized bed gasification furnace according to claim 1, characterized in that: A slag removal mechanism (2) for removing waste slag is arranged at the lower part of the main furnace (1), and the slag removal mechanism (2) comprises a first motor (201) and a threaded rod (202), and the output end of the first motor (201) is connected to the threaded rod (202).

4. A slag removal device for a fluidized bed gasification furnace according to claim 3, characterized in that: The slag removal mechanism (2) further comprises a material receiving tray (203), and a material receiving tray (203) is arranged at the middle part of the outer side of the threaded rod (202).

5. The slag removal device for a fluidized bed gasification furnace according to claim 4, characterized in that: The slag removal mechanism (2) further comprises a scraping edge (204), and the scraping edge (204) is fixed on the upper part of the exterior of the receiving tray (203).

6. The slag removal device for a fluidized bed gasification furnace according to claim 4, characterized in that: The slag removal mechanism (2) further comprises a slag falling bevel (205), and a slag falling bevel (205) is provided in the middle of the surface of the material receiving tray (203).

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