Ash removal device for waste heat boiler of ferroalloy submerged arc furnace

Abstract

The utility model relates to the technical field of waste heat boilers, in particular to an ash removal device for a waste heat boiler of an iron alloy submerged arc furnace, which comprises a base, a waste heat recovery box, a water inlet pipe, a water outlet pipe, an air inlet pipe, an air outlet pipe and an ash removal mechanism. The water outlet pipe is fixedly connected with the surface of the waste heat recovery box, the air inlet pipe is fixedly connected with the surface of the waste heat recovery box, the air outlet pipe is fixedly connected with the surface of the waste heat recovery box, the ash removal mechanism is arranged on the surface of the air inlet pipe and comprises a fixing table, the fixing table is fixedly connected with the surface of the air inlet pipe, and the surface of the fixing table is rotationally connected with a first fan. According to the waste heat recovery device, the dust removal mechanism is arranged, blowing force generated when hot flue gas enters the waste heat recovery box is used for driving the cleaning plate and the hemispherical block to clean the surface of the heat exchange pipe, dirt and dust on the surface of the heat exchange pipe are prevented from being accumulated, the heat exchange efficiency is prevented from being affected, and the durability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a ash cleaning device for a waste heat boiler of a ferroalloy ore-fired furnace. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler is electrical energy or chemical energy in the fuel. The boiler can output steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. With the continuous development of energy-saving technology, more and more waste heat resources have been applied. For the flue gas generated in the boiler, there is still a lot of waste heat inside. The traditional boiler waste heat recovery device is to contact the flue gas with a water pipe and absorb the waste heat in the flue gas through the water inside the water pipe. However, there are a lot of solid particles in the flue gas. Long-term use causes a lot of dust to adhere to the outer wall of the water pipe, thereby reducing the heat conduction of the flue gas and ultimately reducing the waste heat recovery efficiency.

[0003] Prior art, such as Chinese patent with publication number CN221349792U, discloses a boiler waste heat recovery device, including a recovery box, a support leg fixedly installed on the top of the recovery box, a water inlet fixedly installed on the front outer wall water inlet of the recovery box, a water outlet fixedly installed on the left outer wall water outlet of the recovery box, a water pipe fixedly installed between the water inlet and the water outlet, an air inlet fixedly installed on the top air inlet of the recovery box, and a rectangular box fixedly installed on the left outer wall of the recovery box. The boiler waste heat recovery device provided by the utility model drives a rotating shaft 1 through a motor, so that the rotating shaft 1 drives the hemispherical block to continuously reciprocate up and down to knock the outer wall of the water pipe through a rectangular plate 1, a rectangular plate 2 and a round rod, thereby shaking off the dust attached to the outer wall of the water pipe, greatly improving the thermal conductivity of the water pipe, and also improving the utilization rate of flue gas in disguise, saving costs. However, the utility model uses a motor as a drive, which saves resources through waste heat recovery while generating new energy waste, which reduces the significance of waste heat recovery.

[0004] In order to solve the problem of cleaning the dirt on the outer wall of the hot water exchange pipe and avoid the problem of reduced heat exchange efficiency due to the accumulation of dust and particles in the flue gas on the outer wall of the hot water exchange pipe and the inconvenience of cleaning, improvements are needed. Summary of the invention

[0005] The utility model aims to solve the disadvantage of the prior art that it is inconvenient to clean the dirt on the outer wall of the hot water exchange pipe, and proposes a ash cleaning device for the waste heat boiler of an iron alloy ore-fired furnace.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a ash cleaning device for a waste heat boiler of an ferroalloy ore-fired furnace, comprising a base, a waste heat recovery box, a water inlet pipe, a water outlet pipe, an air inlet pipe, an air outlet pipe and a ash cleaning mechanism, the waste heat recovery box is fixedly connected to the surface of the base, the water inlet pipe is fixedly connected to the surface of the waste heat recovery box, the water outlet pipe is fixedly connected to the surface of the waste heat recovery box, the air inlet pipe is fixedly connected to the surface of the waste heat recovery box, the air outlet pipe is fixedly connected to the surface of the waste heat recovery box, the ash cleaning mechanism is arranged on the surface of the air inlet pipe, the ash cleaning mechanism comprises a fixed platform, the fixed platform is fixedly connected to the surface of the air inlet pipe, the surface of the fixed platform is rotatably connected to a first fan, and the surface of the first fan is fixedly connected to a rotating shaft.

[0007] Furthermore, one end of the rotating shaft is fixedly connected to a disc, the surface of the disc is fixedly connected to a cylinder, the surface of the cylinder is rotatably connected to a connecting rod, the other end of the connecting rod is rotatably connected to a connecting column, and the ends of the cylinder and the connecting column that are close to each other are fixedly connected to an anti-slip disc.

[0008] Furthermore, one end of the water inlet pipe is fixedly connected to a heat exchange pipe, the other end of the heat exchange pipe is fixedly connected to the surface of the water outlet pipe, the surface of the air inlet pipe is fixedly connected to a filter screen, and the filter screen is rotatably connected to the surface of the rotating shaft.

[0009] Furthermore, a cleaning plate is fixedly connected to the surface of the connecting column, and the cleaning plate is slidably connected to the surface of the heat exchange tube. The side surface of the cleaning plate close to the heat exchange tube is fixedly connected to a hemispherical block, and the number of the hemispherical blocks is multiple groups.

[0010] Furthermore, an auxiliary mechanism is provided on the surface of the air outlet pipe, and the auxiliary mechanism includes a fixed block, the fixed block is fixedly connected to the surface of the air outlet pipe, the surface of the fixed block is rotatably connected to a second fan, the surface of the second fan is fixedly connected to a rotating column, the surface of the rotating column is rotatably connected to a filter layer, and the filter layer is fixedly connected to the surface of the air outlet pipe.

[0011] Furthermore, one end of the rotating column is fixedly connected to a gear, the surface of the gear is meshingly connected to a rack rod, the number of the rack rods is two groups, the surface of the rack rod is fixedly connected to a cleaning brush, and the cleaning brush is slidably connected to the bottom surface of the waste heat recovery box.

[0012] Furthermore, a slide groove is provided on the surface of the waste heat recovery box, and the number of the slide grooves is two groups. Both ends of the rack rod are fixedly connected with sliders, and the sliders are slidably connected to the surfaces of the slide grooves. A dust outlet groove is provided on the surface of the waste heat recovery box, a dust outlet is provided on the surface of the base, and a dust collecting box is fixedly installed on the surface of the base.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting a dust cleaning mechanism, the flue gas enters the waste heat recovery box from the air intake pipe, pushing the first fan to rotate so that the rotating shaft rotates, and then driving the disc to rotate, and the cylinder on the disc rotates accordingly, so that the connecting rod drives the cleaning plate to slide on the surface of the heat exchange tube, and then reciprocatingly cleans the surface that is difficult to clean. At the same time, when the cleaning plate slides to the left and right edge positions, the hemispherical block hits the surface of the heat exchange tube, causing the dust to fall due to vibration. By setting a dust cleaning mechanism, the blowing force generated when the hot flue gas enters the waste heat recovery box is used to drive the cleaning plate and the hemispherical block to clean the surface of the heat exchange tube, thereby avoiding the accumulation of dirt and dust on the surface of the heat exchange tube to affect the heat exchange efficiency, thereby effectively improving the durability of the equipment.

[0015] 2. In the utility model, an auxiliary mechanism is provided, when the dust and dirt are cleaned up by the cleaning mechanism, they will fall to the bottom, and when the flue gas leaves the waste heat recovery box through the exhaust pipe, the second fan will be driven to rotate, so that the rotating column will rotate accordingly and drive the gear to rotate, and then the rack rod meshing with it will slide in the slide groove together with the slider, driving the cleaning brush to slide at the bottom of the waste heat recovery box, sweeping the fallen dirt and dust into the dust outlet groove, and falling into the dust collecting box through the dust outlet groove and the dust outlet. By providing an auxiliary mechanism, the blowing force generated when the hot flue gas leaves the waste heat recovery box is utilized to drive the cleaning brush to sweep the fallen dirt and dust into the dust collecting box, which is convenient for the staff to handle in a centralized manner, thereby effectively improving the convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a ash cleaning device for a waste heat boiler of an ferroalloy ore-fired furnace is proposed for the utility model;

[0017] Figure 2 The utility model provides a partial structural schematic diagram of a cleaning mechanism in a ash cleaning device for a waste heat boiler of an ferroalloy ore-fired furnace;

[0018] Figure 3 The utility model provides a partial structural schematic diagram of a cleaning mechanism in a ash cleaning device for a waste heat boiler of an ferroalloy ore-fired furnace;

[0019] Figure 4 The utility model provides a partial structural schematic diagram of an auxiliary mechanism in a ash cleaning device for a waste heat boiler of an ferroalloy ore furnace;

[0020] Figure 5 The utility model provides a partial structural schematic diagram of an auxiliary mechanism in a ash cleaning device for a waste heat boiler of an ferroalloy ore-fired furnace.

[0021] Legend:

[0022] 1. Base; 2. Waste heat recovery box; 3. Water inlet pipe; 4. Water outlet pipe; 5. Air inlet pipe; 6. Air outlet pipe; 7. Dust cleaning mechanism; 701. Fixed platform; 702. First fan; 703. Rotating shaft; 704. Disc; 705. Cylinder; 706. Connecting rod; 707. Connecting column; 708. Anti-slip disc; 709. Heat exchange tube; 710. Filter; 711. Cleaning plate; 712. Hemispherical block; 8. Auxiliary mechanism; 801. Fixed block; 802. Second fan; 803. Rotating column; 804. Filter layer; 805. Gear; 806. Rack rod; 807. Cleaning brush; 808. Slide; 809. Sliding block; 810. Dust outlet slot; 811. Dust outlet; 812. Dust collecting box. DETAILED DESCRIPTION

[0023] See also Figure 1-5 The utility model provides a technical solution: a ash cleaning device for a waste heat boiler of a ferroalloy ore-fired furnace, comprising a base 1, a waste heat recovery box 2, a water inlet pipe 3, a water outlet pipe 4, an air inlet pipe 5, an air outlet pipe 6 and a ash cleaning mechanism 7, the waste heat recovery box 2 is fixedly connected to the surface of the base 1, the water inlet pipe 3 is fixedly connected to the surface of the waste heat recovery box 2, the water outlet pipe 4 is fixedly connected to the surface of the waste heat recovery box 2, the air inlet pipe 5 is fixedly connected to the surface of the waste heat recovery box 2, the air outlet pipe 6 is fixedly connected to the surface of the waste heat recovery box 2, and the ash cleaning mechanism 7 is arranged on the surface of the air inlet pipe 5.

[0024] The specific arrangement and function of the dust cleaning mechanism 7 and the auxiliary mechanism will be described in detail below.

[0025] In this embodiment: the dust cleaning mechanism 7 includes a fixed platform 701, which is fixedly connected to the surface of the air inlet pipe 5, and the surface of the fixed platform 701 is rotatably connected to a first fan 702, and the surface of the first fan 702 is fixedly connected to a rotating shaft 703.

[0026] The effect achieved by the above components is: when the smoke enters the waste heat recovery box 2 from the air inlet pipe 5, the first fan 702 is driven to rotate so that the rotating shaft 703 rotates. The fixed platform 701 is provided to place the first fan 702.

[0027] Specifically, one end of the rotating shaft 703 is fixedly connected to a disk 704, the surface of the disk 704 is fixedly connected to a cylinder 705, the surface of the cylinder 705 is rotatably connected to a connecting rod 706, the other end of the connecting rod 706 is rotatably connected to a connecting column 707, and the ends of the cylinder 705 and the connecting column 707 that are close to each other are fixedly connected to an anti-slip disk 708.

[0028] The effect achieved by the above components is: the rotating shaft 703 drives the disc 704 to rotate, and the cylinder 705 on the disc 704 rotates accordingly, so that the connecting rod 706 drives the connecting column 707 to move, and the anti-detachment disc 708 is provided to prevent the connecting rod 706 from detaching from the cylinder 705 and the connecting column 707.

[0029] Specifically, one end of the water inlet pipe 3 is fixedly connected to the heat exchange pipe 709, the other end of the heat exchange pipe 709 is fixedly connected to the surface of the water outlet pipe 4, the surface of the air inlet pipe 5 is fixedly connected to the filter screen 710, and the filter screen 710 is rotatably connected to the surface of the rotating shaft 703.

[0030] The effect achieved by the above components is: water is input into the heat exchange tube 709 from the water inlet pipe 3, the water in the heat exchange tube 709 is heated by the hot flue gas entering the waste heat recovery box 2, and then flows out through the water outlet pipe 4. The filter net 710 is set to perform preliminary filtration of dust and particles in the flue gas.

[0031] Specifically, a cleaning plate 711 is fixedly connected to the surface of the connecting column 707, and the cleaning plate 711 is slidably connected to the surface of the heat exchange tube 709. A hemispherical block 712 is fixedly connected to the side surface of the cleaning plate 711 close to the heat exchange tube 709, and the number of the hemispherical blocks 712 is multiple groups.

[0032] The effect achieved by the above components is: the connecting rod 706 drives the connecting column 707, and then drives the cleaning plate 711 to slide back and forth on the surface of the heat exchange tube 709, so as to clean the surface that is difficult to clean. At the same time, when the cleaning plate 711 slides to the left and right edge positions, the hemispherical block 712 hits the surface of the heat exchange tube 709, causing the dust to fall due to vibration.

[0033] Specifically, an auxiliary mechanism 8 is provided on the surface of the air outlet pipe 6, and the auxiliary mechanism 8 includes a fixed block 801, which is fixedly connected to the surface of the air outlet pipe 6, and the surface of the fixed block 801 is rotatably connected to a second fan 802, and the surface of the second fan 802 is fixedly connected to a rotating column 803, and the surface of the rotating column 803 is rotatably connected to a filter layer 804, and the filter layer 804 is fixedly connected to the surface of the air outlet pipe 6.

[0034] The effect achieved by the above components is: when the dust and dirt are cleaned up by the cleaning mechanism 7, they will fall to the bottom. When the smoke leaves the waste heat recovery box 2 through the outlet pipe 6, it will push the second fan 802 to rotate, causing the rotating column 803 to rotate accordingly. The fixed block 801 is set to place the second fan 802, and the filter layer 804 is set to prevent the fallen dust and particles from entering the outlet pipe 6.

[0035] Specifically, one end of the rotating column 803 is fixedly connected to a gear 805, the surface of the gear 805 is meshingly connected to a rack rod 806, there are two groups of rack rods 806, the surface of the rack rod 806 is fixedly connected to a cleaning brush 807, and the cleaning brush 807 is slidably connected to the bottom surface of the waste heat recovery box 2.

[0036] The effects achieved by the above components are: the rotation of the rotating column 803 drives the gear 805 to rotate, and then the rack rod 806 meshing therewith drives the cleaning brush 807 to slide at the bottom of the waste heat recovery box 2 to clean the fallen dirt and dust.

[0037] Specifically, a slide groove 808 is provided on the surface of the waste heat recovery box 2, and the number of the slide grooves 808 is two groups. Slide blocks 809 are fixedly connected to both ends of the rack rod 806, and the slide block 809 is slidably connected to the surface of the slide groove 808. A dust outlet groove 810 is provided on the surface of the waste heat recovery box 2, a dust outlet port 811 is provided on the surface of the base 1, and a dust collecting box 812 is fixedly installed on the surface of the base 1.

[0038] The effect achieved by the above components is: the fallen dirt and dust are swept into the dust outlet groove 810, and fall into the dust collection box 812 through the dust outlet groove 810 and the dust outlet 811, which is convenient for centralized processing. The slide groove 808 and the slider 809 are set to provide guidance for the movement of the rack rod 806 and prevent the rack rod 806 from disengaging from the gear 805.

[0039] Working principle: by setting up the dust cleaning mechanism 7, the flue gas enters the waste heat recovery box 2 from the air intake pipe 5, pushing the first fan 702 to rotate so that the rotating shaft 703 rotates, and then drives the disc 704 to rotate, and the cylinder 705 on the disc 704 rotates accordingly, so that the connecting rod 706 drives the cleaning plate 711 to slide on the surface of the heat exchange tube 709, and then reciprocates to clean the surface that is difficult to clean. At the same time, when the cleaning plate 711 slides to the left and right edge positions, the hemispherical block 712 hits the surface of the heat exchange tube 709, causing the dust to fall due to vibration. By setting up the dust cleaning mechanism 7, the blowing force generated when the hot flue gas enters the waste heat recovery box 2 is used to drive the cleaning plate 711 and the hemispherical block 712 to clean the surface of the heat exchange tube 709, so as to avoid the accumulation of dirt and dust on the surface of the heat exchange tube 709 and affect the heat exchange efficiency, thereby effectively improving the The durability of the equipment is improved. By setting up an auxiliary mechanism 8, when the dust and dirt are cleaned up by the cleaning mechanism 7, they will fall to the bottom. When the flue gas leaves the waste heat recovery box 2 through the exhaust pipe 6, it will push the second fan 802 to rotate, so that the rotating column 803 rotates accordingly, driving the gear 805 to rotate, and then the rack rod 806 meshing with it slides with the slider 809 in the slide groove 808, driving the cleaning brush 807 to slide at the bottom of the waste heat recovery box 2, and sweeping the fallen dirt and dust into the dust outlet groove 810, and falling into the dust collecting box 812 through the dust outlet groove 810 and the dust outlet 811. By setting up the auxiliary mechanism 8, the blowing force generated when the hot flue gas leaves the waste heat recovery box 2 is used to drive the cleaning brush 807 to sweep the fallen dirt and dust into the dust collecting box 812, which is convenient for the staff to handle in a centralized manner, thereby effectively improving the convenience of the equipment.

Claims

1. A ash cleaning device for a waste heat boiler of an iron alloy ore furnace, comprising a base (1), a waste heat recovery box (2), a water inlet pipe (3), a water outlet pipe (4), an air inlet pipe (5), an air outlet pipe (6) and an ash cleaning mechanism (7), characterized in that: The waste heat recovery box (2) is fixedly connected to the surface of the base (1), the water inlet pipe (3) is fixedly connected to the surface of the waste heat recovery box (2), the water outlet pipe (4) is fixedly connected to the surface of the waste heat recovery box (2), the air inlet pipe (5) is fixedly connected to the surface of the waste heat recovery box (2), the air outlet pipe (6) is fixedly connected to the surface of the waste heat recovery box (2), the dust cleaning mechanism (7) is arranged on the surface of the air inlet pipe (5), and the dust cleaning mechanism (7) comprises a fixed platform (701), the fixed platform (701) is fixedly connected to the surface of the air inlet pipe (5), the surface of the fixed platform (701) is rotatably connected to a first fan (702), and the surface of the first fan (702) is fixedly connected to a rotating shaft (703).

2. The ash cleaning device for the waste heat boiler of an ferroalloy ore furnace according to claim 1 is characterized in that: One end of the rotating shaft (703) is fixedly connected to a disk (704), the surface of the disk (704) is fixedly connected to a cylinder (705), the surface of the cylinder (705) is rotatably connected to a connecting rod (706), the other end of the connecting rod (706) is rotatably connected to a connecting column (707), and the ends of the cylinder (705) and the connecting column (707) that are close to each other are both fixedly connected to an anti-slip disk (708).

3. The ash cleaning device for the waste heat boiler of an ferroalloy ore furnace according to claim 2 is characterized in that: One end of the water inlet pipe (3) is fixedly connected to a heat exchange pipe (709), the other end of the heat exchange pipe (709) is fixedly connected to the surface of the water outlet pipe (4), the surface of the air inlet pipe (5) is fixedly connected to a filter screen (710), and the filter screen (710) is rotatably connected to the surface of the rotating shaft (703).

4. The ash cleaning device for waste heat boiler of ferroalloy ore furnace according to claim 3 is characterized in that: A cleaning plate (711) is fixedly connected to the surface of the connecting column (707), and the cleaning plate (711) is slidably connected to the surface of the heat exchange tube (709). A hemispherical block (712) is fixedly connected to the side surface of the cleaning plate (711) close to the heat exchange tube (709), and the hemispherical blocks (712) are provided in multiple groups.

5. The ash cleaning device for the waste heat boiler of an ferroalloy ore furnace according to claim 1 is characterized in that: An auxiliary mechanism (8) is provided on the surface of the air outlet pipe (6), and the auxiliary mechanism (8) comprises a fixed block (801), the fixed block (801) is fixedly connected to the surface of the air outlet pipe (6), the surface of the fixed block (801) is rotatably connected to a second fan (802), the surface of the second fan (802) is fixedly connected to a rotating column (803), the surface of the rotating column (803) is rotatably connected to a filter layer (804), and the filter layer (804) is fixedly connected to the surface of the air outlet pipe (6).

6. The ash cleaning device for the waste heat boiler of an ferroalloy ore furnace according to claim 5, characterized in that: One end of the rotating column (803) is fixedly connected to a gear (805), the surface of the gear (805) is meshingly connected to a rack rod (806), the number of the rack rods (806) is two groups, the surface of the rack rods (806) is fixedly connected to a cleaning brush (807), and the cleaning brush (807) is slidably connected to the bottom surface of the waste heat recovery box (2).

7. The ash cleaning device for the waste heat boiler of an ferroalloy ore furnace according to claim 6, characterized in that: A slide groove (808) is provided on the surface of the waste heat recovery box (2), and the number of the slide grooves (808) is two groups. Both ends of the rack rod (806) are fixedly connected with sliders (809), and the sliders (809) are slidably connected to the surface of the slide grooves (808). A dust outlet groove (810) is provided on the surface of the waste heat recovery box (2), and a dust outlet (811) is provided on the surface of the base (1). A dust collection box (812) is fixedly installed on the surface of the base (1).

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