Fluidized bed furnace

Abstract

The utility model provides a fluidized bed furnace, which belongs to the technical field of fluidized bed furnaces and comprises a support, a furnace body is mounted at the top of the support, a dredging mechanism is mounted at the top of the furnace body and comprises a chimney, the chimney is fixedly mounted at the top of the furnace body, a first mounting plate is fixedly mounted in the chimney, and a second mounting plate is mounted in the first mounting plate. A motor is fixedly mounted at the bottom of the first mounting plate, the sliding grooves are formed in the inner wall of an inner cavity of the chimney, the number of the sliding grooves is two, sliding blocks are slidably mounted in the two sliding grooves, the second mounting plate is fixedly mounted in the chimney, and a rotating plate is rotatably mounted at the bottom of the second mounting plate. Through the arrangement of the dredging mechanism, the chimney of the fluidized bed furnace can be dredged, blockage can be removed by dredging the chimney, it is ensured that air can smoothly enter the fluidized bed furnace, meanwhile, waste gas generated by combustion is smoothly exhausted, the combustion efficiency is improved, and energy waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fluidized bed furnace, concretely to a fluidized bed furnace. BACKGROUND

[0002] The fluidized bed furnace is a roasting equipment widely used in pyrometallurgy, which comprises a furnace body, an exhaust port, a wind cap arranged at the bottom of the furnace body for supplying air into the furnace, and other components. The furnace charge, such as concentrate or other intermediate furnace charge, flux and fuel, is added into the furnace body through the charging port, and air is blown into the furnace body through the wind cap by means of a blower, so as to form a fluidized zone in the fluidized bed furnace, and the furnace charge is roasted in the fluidized zone. The exhaust gas after roasting is discharged from the exhaust port of the fluidized bed furnace, and the roasted furnace charge can be intermittently discharged from the discharge port of the fluidized bed furnace.

[0003] During operation of the fluidized bed furnace, the heat storage capacity in the furnace chamber is large, and the gas diffusion speed is fast, so that the furnace can burn strongly under a very low air excess system. However, the strong combustion will cause a large amount of dust in the hot gas flow in the furnace chamber, and the dust is mixed with fully combusted dust and incompletely combusted dust. Since most fluidized bed furnaces are provided with a chimney integrated with the furnace itself and have a small diameter, a large amount of dust is easy to block the chimney pipeline after a long time of use, resulting in failure of emission. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a fluidized bed furnace which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a fluidized bed furnace, including support, the top of support installs the furnace body, the top of furnace body installs dredging mechanism, the dredging mechanism includes:

[0007] The chimney is fixedly installed at the top of the furnace body, the first mounting plate is fixedly installed in the chimney, the motor is fixedly installed at the bottom of the first mounting plate;

[0008] The sliding groove is arranged in the inner wall of the inner cavity of the chimney, the sliding groove is provided with two, and the sliding block is slidingly installed in the inner part of the two sliding grooves;

[0009] The second mounting plate is fixedly installed in the inner part of the chimney, the rotating plate is rotatably installed at the bottom of the second mounting plate, the rotating shaft is fixedly installed at the bottom of the rotating plate, and the transverse scraper is fixedly installed on the surface of the rotating shaft.

[0010] In an embodiment of the utility model, the top of second mounting plate is fixedly installed with third mounting plate, the top of third mounting plate is rotatably installed with first double-groove pulley, and the first double-groove pulley is fixedly connected with motor.

[0011] In an embodiment of the utility model, the top of second mounting plate is rotatably installed with half gear, the half gear is provided with two, the top of two half gears is fixedly installed with first pulley, and the first pulley is connected with first double-groove pulley through belt.

[0012] In an embodiment of the utility model, the top of second mounting plate is rotatably installed with first gear, the first gear is engaged with two half gears, the top of first gear is fixedly installed with second double-groove pulley, and the first gear is fixedly connected with rotating plate.

[0013] In an embodiment of the utility model, the inside of two sliding grooves is rotatably installed with threaded cylinder, the top of threaded cylinder is fixedly installed with second pulley, and the second pulley is connected with second double-groove pulley through belt.

[0014] In an embodiment of the utility model, the inside of threaded cylinder is screwedly installed with threaded rod, the bottom of threaded rod is fixedly connected with sliding block, the side of sliding block is fixedly installed with vertical scraper, and the bottom of sliding block is fixedly installed with hammer head.

[0015] In an embodiment of the utility model, the side of sliding block is fixedly installed with supporting plate, the bottom of second mounting plate is fixedly installed with air cylinder, the air cylinder is provided with two, the top of supporting plate is fixedly installed with supporting rod, the top of supporting rod is fixedly installed with piston, and the piston is slidably installed in the inside of air cylinder.

[0016] In an embodiment of the utility model, the bottom of second mounting plate is fixedly installed with air jet nozzle, the air jet nozzle is provided with two, two air jet nozzles are communicated with air cylinder through air pipe, and the bottom of smoke tube is fixedly installed with filter plate.

[0017] The utility model provides a kind of fluidized bed furnace, its beneficial effect includes:

[0018] 1. By the setting of dredging mechanism, the smoke tube of fluidized bed furnace can be dredged, and the blockage can be removed, to ensure that air can smoothly enter the fluidized bed furnace, while the exhaust gas produced by combustion is smoothly discharged, and good ventilation conditions help fuel to burn fully, improve combustion efficiency and reduce energy waste.

[0019] 2. Through the arrangement of the transverse scraper and the air jet nozzle, the filter plate can be cleaned, and timely cleaning of the filter plate can remove pollutants, ensure that the filter pores are not blocked, and thus maintain good filtering effect, which helps to reduce harmful substances discharged into the atmosphere, meeting environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure provided by the embodiments of the present application;

[0022] Figure 2 is a schematic diagram of the dredging mechanism structure provided by the embodiments of the present application;

[0023] Figure 3 is a schematic diagram of the internal structure of the smoke pipe provided by the embodiments of the present application;

[0024] Figure 4 is a schematic diagram of the internal structure of the smoke pipe provided by the embodiments of the present application; Figure 3 is a schematic diagram of the internal structure of the smoke pipe provided by the embodiments of the present application;

[0025] In the figure: 1, support; 2, furnace body; 3, dredging mechanism; 301, smoke pipe; 302, first mounting plate; 303, motor; 304, sliding groove; 305, sliding block; 306, second mounting plate; 307, rotating plate; 308, rotating shaft; 309, third mounting plate; 310, first double-groove pulley; 311, half gear; 312, first pulley; 313, first gear; 314, second double-groove pulley; 315, threaded cylinder; 316, second pulley; 317, threaded rod; 318, vertical scraper; 319, support plate; 320, air cylinder; 321, support rod; 322, piston; 323, air jet nozzle; 324, filter plate; 325, transverse scraper; 326, hammer head. DETAILED DESCRIPTION

[0026] In order to make the purposes, technical schemes and advantages of the embodiments of the present application clearer, the technical schemes of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0027] Embodiment

[0028] With reference to Figures 1-4 The technical scheme provides a boiling furnace, wherein a support 1 is arranged, a furnace body 2 is arranged on the top of the support 1, a dredging mechanism 3 is arranged on the top of the furnace body 2, the dredging mechanism 3 comprises a chimney 301, sliding grooves 304 and a second mounting plate 306, the chimney 301 is fixedly arranged on the top of the furnace body 2, the chimney 301 is communicated with the furnace body 2, a filter plate 324 is fixedly arranged on the bottom of the chimney 301, flue gas generated in the furnace body 2 is discharged to the outside through the chimney 301, a first mounting plate 302 is fixedly arranged in the chimney 301, a motor 303 is fixedly arranged on the bottom of the first mounting plate 302, the sliding grooves 304 are arranged on the inner wall of the cavity of the chimney 301, the sliding grooves 304 are two in number, sliding blocks 305 are slidingly arranged in the sliding grooves 304, the second mounting plate 306 is fixedly arranged in the chimney 301, a rotating plate 307 is rotatably arranged on the bottom of the second mounting plate 306, a rotating shaft 308 is fixedly arranged on the bottom of the rotating plate 307, a transverse scraper 325 is fixedly arranged on the surface of the rotating shaft 308, a third mounting plate 309 is fixedly arranged on the top of the second mounting plate 306, a first double-groove pulley 310 is rotatably arranged on the top of the third mounting plate 309, the first double-groove pulley 310 is fixedly connected with the motor 303, the motor 303 can drive the first double-groove pulley 310 to rotate, a half gear 311 is rotatably arranged on the top of the second mounting plate 306, the half gear 311 is two in number, first pulleys 312 are fixedly arranged on the top of the half gears 311, the first pulleys 312 are connected with the first double-groove pulley 310 through a belt, when the first double-groove pulley 310 rotates, the rotating first double-groove pulley 310 can drive the two first pulleys 312 to rotate, and the rotating first pulleys 312 can drive the two half gears 311 to rotate in the same direction.

[0029] With reference to Figures 1-4, based on the same idea as in embodiment 1, this embodiment also proposes that the top of the second mounting plate 306 is rotatably mounted with a first gear 313, the first gear 313 is engaged with two half gears 311, the same direction rotation of the two half gears 311 can make the first gear 313 rotate intermittently, the top of the first gear 313 is fixedly mounted with a second double-groove pulley 314, the first gear 313 is fixedly connected with the rotating plate 307, the intermittent rotation of the first gear 313 can drive the second double-groove pulley 314 to rotate and the rotating plate 307 to rotate, the rotation of the rotating plate 307 can drive the rotating shaft 308 to rotate, and then can drive the horizontal scraper 325 to rotate intermittently, the interiors of the two sliding grooves 304 are rotatably mounted with threaded barrels 315, the tops of the threaded barrels 315 are fixedly mounted with second pulleys 316, the second pulleys 316 are connected with the second double-groove pulley 314 through a belt, when the second double-groove pulley 314 rotates, the second pulleys 316 can be driven to rotate, the rotation of the two second pulleys 316 can drive the threaded barrels 315 to rotate in the interiors of the sliding grooves 304, the interiors of the threaded barrels 315 are screw-mounted with threaded rods 317, the bottoms of the threaded rods 317 are fixedly connected with the sliding blocks 305, the side portions of the sliding blocks 305 are fixedly mounted with vertical scrapers 318, the bottoms of the sliding blocks 305 are fixedly mounted with hammer heads 326, the intermittent rotation of the horizontal scraper 325 can cooperate with the hammer heads 326, when the horizontal scraper 325 scrapes the filter plate 324 once, the hammer heads 326 can beat the filter plate 324 which has been scraped, so that the soot can fall from the filter plate 324, when the threaded barrels 315 rotate, the threaded rods 317 can be driven to move downward, so that the sliding blocks 305 can slide in the interiors of the sliding grooves 304, and then the vertical scrapers 318 can scrape and dredge the inner wall of the chimney 301, the side portions of the sliding blocks 305 are fixedly mounted with supporting plates 319, the bottom of the second mounting plate 306 is fixedly mounted with air cylinders 320, the air cylinders 320 are provided with two, the top of the supporting plate 319 is fixedly mounted with a supporting rod 321, the top of the supporting rod 321 is fixedly mounted with a piston 322, the piston 322 is slidably installed in the interior of the air cylinder 320, the bottom of the second mounting plate 306 is fixedly mounted with jet nozzles 323, the jet nozzles 323 are provided with two, the two jet nozzles 323 are communicated with the air cylinder 320 through air pipes, when the horizontal scraper 325 scrapes the surface of the filter plate 324 under the driving of the rotating shaft 308, and the hammer heads 326 beat the filter plate 324 under the driving of the threaded rods 317, the motor 303 reverses, the sliding blocks 305 move upward, the supporting plate 319 and the supporting rod 321 move upward, and then the piston 322 slides upward in the interior of the air cylinder 320, so that the airflow is sprayed out of the jet nozzles 323, the surface of the filter plate 324 is wiped, and the soot blocked in the filter holes is cleaned.

[0030] Specifically, the working process or working principle of the boiling furnace is as follows: first, when the chimney 301 needs to be dredged, the motor 303 is started, the motor 303 can drive the first double-groove pulley 310 to rotate, the rotating first double-groove pulley 310 can drive the two first pulleys 312 to rotate, the rotating first pulleys 312 can drive the two half gears 311 to rotate in the same direction, the same direction rotation of the two half gears 311 can drive the first gear 313 to rotate intermittently, the intermittent rotation of the first gear 313 can drive the second double-groove pulley 314 and the rotating plate 307 to rotate, the rotation of the rotating plate 307 can drive the rotating shaft 308 to rotate, and in turn can drive the horizontal scraper 325 to rotate, when the second double-groove pulley 314 rotates, it can drive the second pulley 316 to rotate, the rotation of the two second pulleys 316 can drive the threaded cylinder 315 to rotate inside the sliding groove 304, when the threaded cylinder 315 rotates, the threaded rod 317 can move downward, in this way, the sliding block 305 can slide inside the sliding groove 304, in turn, the vertical scraper 318 can scrape the inner wall of the chimney 301, at the same time, the hammer head 326 hits the filter plate 324 under the drive of the threaded rod 317, then the motor 303 is reversed, the sliding block 305 moves upward, the supporting plate 319 and the supporting rod 321 move upward, in turn, the piston 322 slides upward inside the air cylinder 320, in this way, the airflow is sprayed from the air jet nozzle 323, wipes the surface of the filter plate 324, and cleans the accumulated ash inside the filter hole.

Claims

1. A fluidized bed furnace comprising a support (1), characterized in that, The top of the support (1) is provided with a furnace body (2), the top of the furnace body (2) is provided with a dredging mechanism (3), the dredging mechanism (3) comprises: A chimney (301) is fixedly installed at the top of the furnace body (2), a first mounting plate (302) is fixedly installed inside the chimney (301), a motor (303) is fixedly installed at the bottom of the first mounting plate (302); A sliding groove (304) is formed in the inner wall of the chimney (301), the sliding groove (304) is provided with two, and a sliding block (305) is slidably installed inside the sliding groove (304); A second mounting plate (306) is fixedly installed inside the chimney (301), a rotating plate (307) is rotatably installed at the bottom of the second mounting plate (306), a rotating shaft (308) is fixedly installed at the bottom of the rotating plate (307), and a transverse scraper (325) is fixedly installed on the surface of the rotating shaft (308).

2. A fluidized bed furnace according to claim 1, characterized in that A third mounting plate (309) is fixedly installed at the top of the second mounting plate (306), a first double-groove pulley (310) is rotatably installed at the top of the third mounting plate (309), and the first double-groove pulley (310) is fixedly connected with the motor (303).

3. A fluidized bed furnace according to claim 2, characterized in that A half gear (311) is rotatably installed at the top of the second mounting plate (306), the half gear (311) is provided with two, a first pulley (312) is fixedly installed at the top of the half gear (311), and the first pulley (312) is connected with the first double-groove pulley (310) through a belt.

4. A fluidized bed furnace according to claim 3, characterized in that A first gear (313) is rotatably installed at the top of the second mounting plate (306), the first gear (313) is engaged with the two half gears (311), a second double-groove pulley (314) is fixedly installed at the top of the first gear (313), and the first gear (313) is fixedly connected with the rotating plate (307).

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