Desulfurization and dust removal device for waste copper smelting

Abstract

The waste copper smelting desulfurization and dust removal device comprises a base, the top of the base is connected with a treatment box, the bottom of the front side wall of the treatment box communicates with an air inlet pipe, the left side wall of the treatment box is connected with a liquid storage box, and a spraying pipe communicates between the liquid storage box and the treatment box; a liquid pump is installed at the end, extending into the liquid storage tank, of the spraying pipe, the top of the treatment tank is connected with a cylindrical shell, the center of the cylindrical shell is rotationally connected with a steering shaft, the outer wall of the steering shaft is circumferentially connected with three telescopic rods, the free ends of the telescopic rods are connected with a purification cylinder, and the left side of the top of the cylindrical shell communicates with an air outlet pipe. The device is reasonable in structural design, the waste gas treatment effect can be improved, maintenance can be conducted without shutdown, and normal waste gas treatment is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization and dust removal, and in particular to a desulfurization and dust removal device for scrap copper smelting. Background Art

[0002] During the smelting process of scrap copper, a large amount of flue gas will be generated in the furnace, and the flue gas in the scrap copper contains a large amount of harmful gases such as SO2. In addition, with the increasingly stringent environmental protection requirements, the flue gas originally discharged directly from the high-altitude chimney will not be able to meet the emission standards and must be desulfurized. The flue gas generated has the following characteristics: large flue gas volume, large fluctuations in SO2 concentration, and a certain amount of smelting smoke in the flue gas. In the prior art, the exhaust gas is separated and dusted by hydrogen peroxide spraying combined with physical adsorption of activated carbon plates. However, due to the limited contact time between the exhaust gas and hydrogen peroxide, it is difficult to achieve a good effect on the SO2 generated by scrap copper smelting, which is not conducive to efficient desulfurization and dust removal of scrap copper smelting.

[0003] To this end, those skilled in the art have conducted research and improvements, such as a waste copper smelting desulfurization and dust removal device with application number CN202223135067.5. In this technical solution, the flue gas passes through multiple activated carbon adsorption plates installed on the sealing plate in sequence to achieve the adsorption of dust in the flue gas, which is conducive to efficient dust removal of the flue gas. However, this technical solution still has shortcomings. The steps for removing and replacing the activated carbon adsorption plates in the device are cumbersome, and the equipment cannot be used during the replacement process. To this end, we propose a waste copper smelting desulfurization and dust removal device. Summary of the invention

[0004] The purpose of the present invention is to provide a desulfurization and dust removal device for scrap copper smelting to overcome the technical problems existing in the prior art.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention provides the following technical solutions: A desulfurization and dust removal device for scrap copper smelting comprises a base, the top of the base is connected to a treatment box, the bottom of the front side wall of the treatment box is connected to an air inlet pipe, the left side wall of the treatment box is connected to a liquid storage tank, a spray pipe is connected between the liquid storage tank and the treatment box, a liquid pump is installed at one end of the spray pipe extending into the liquid storage tank, the top of the treatment box is connected to a cylindrical shell, the center of the cylindrical shell is rotatably connected to a steering shaft, the outer wall of the steering shaft is circumferentially connected to three telescopic rods, the free ends of the telescopic rods are connected to a purification cylinder, the top left side of the cylindrical shell is connected to an air outlet pipe, and the outer wall of the treatment box is connected to a PLC controller.

[0006] Preferably, in a waste copper smelting desulfurization and dust removal device, an infrared signal transmitter is connected to the left side of the inner wall of the cylindrical shell, a compartment door is opened on the right part of the outer wall of the cylindrical shell, a steering motor is connected to the top of the cylindrical shell, the output end of the steering motor is connected to bevel gear one, the top of the steering shaft is connected to bevel gear two, and bevel gear two is meshingly connected to bevel gear one.

[0007] Preferably, in a waste copper smelting desulfurization and dust removal device, the top of the cylindrical shell is connected to a protective shell, the top of the protective shell is connected to a solar photovoltaic panel, the inner cavity of the protective shell is connected to a battery and a charge and discharge controller, the solar photovoltaic panel is connected to the battery through the charge and discharge controller, the battery is electrically connected to a PLC controller, the outer wall of the protective shell is provided with heat dissipation holes, and the bevel gear 2, bevel gear 1 and the steering motor are all located in the inner cavity of the protective shell.

[0008] Preferably, in a waste copper smelting desulfurization and dust removal device, the upper and lower ends of the purification cylinder are connected with a bellows, the end of the bellows is connected with a metal ring sheet, a compression spring is connected between the metal ring sheet and the purification cylinder, the end face of the metal ring sheet is connected with a sealing ring, annular electromagnets are embedded in the upper and lower outer walls of the purification cylinder, the inner cavity of the purification cylinder is connected with a filter screen, a sponge layer and an activated carbon adsorption layer from bottom to top, a tension spring is connected between the circumferential outer wall of the purification cylinder and the steering shaft, and a handle and an infrared signal receiver are connected to the side of the purification cylinder away from the steering shaft Preferably, in a waste copper smelting desulfurization and dust removal device, a circular through hole is opened on the left side of the top of the processing box, and the circular through hole is arranged coaxially with the left purification cylinder, bellows, metal ring sheet and outlet pipe.

[0009] Preferably, in a waste copper smelting desulfurization and dust removal device, one end of the spray pipe extending into the inner cavity of the treatment box is connected to a main water pipe, the pipe wall of the main water pipe is connected to a plurality of parallel water distribution pipes, and a plurality of atomizing nozzles are installed at equal distances at the bottom of the water distribution pipes.

[0010] Preferably, in a waste copper smelting desulfurization and dust removal device, one end of the air inlet pipe extending into the inner cavity of the processing box is connected to a diverter pipe, the diverter pipe is arranged in an L-shaped structure, and the vertical part of the diverter pipe is connected to a plurality of bronchi, and the plurality of bronchi are arranged in a circular array, and the ends of the plurality of bronchi are commonly connected to an annular pipe, and a plurality of air holes are circumferentially opened on the top of the annular pipe.

[0011] Preferably, in a waste copper smelting desulfurization and dust removal device, a plurality of groups of baffles are arranged at intervals on the left and right side walls of the inner cavity of the processing box, and the plurality of groups of baffles are combined in the processing box to form a serpentine channel, and the height of the baffles is set lower than the height of the atomizing nozzle.

[0012] Preferably, in a waste copper smelting desulfurization and dust removal device, a ladder is connected to the right side wall of the processing box, an inspection door is installed on the rear side wall of the processing box, a sewage pipe is connected to the bottom of the rear side wall of the processing box, and a control valve is installed on the sewage pipe.

[0013] Preferably, in a waste copper smelting desulfurization and dust removal device, a dust detector is installed on the outlet pipe, the upper end of the outlet pipe is connected to an electromagnetic three-way valve, and a reflux pipe is connected between the left end of the electromagnetic three-way valve and the upper part of the processing box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The structural design of the present invention is reasonable. Clean water is stored at the bottom of the inner cavity of the treatment box, and an alkaline solution is stored in the liquid storage tank. Clean water is used to wash the exhaust gas, which can wash the dust in the exhaust gas. The solution is sent out through the spray pipe and contacts the gas, which can neutralize the sulfur-containing gas and reduce the sulfur content in the gas. After the gas enters the purification cylinder, the filter screen, sponge layer and activated carbon adsorption layer are used to further purify the gas, which can improve the exhaust gas treatment effect. 2. The present invention absorbs and converts light energy through solar photovoltaic panels, which is energy-saving and environmentally friendly. The purification cylinder station can be switched. After the infrared signal receiver receives the signal from the infrared signal transmitter, the annular electromagnet is powered off, and the compression spring drives the metal annular sheet to reset. The round through hole and the air outlet pipe are connected with the left purification cylinder, and the purified gas can be smoothly sent to the air outlet pipe. Maintenance can be carried out without stopping the machine, which does not affect the normal treatment of exhaust gas. 3. The present invention can increase the coverage area of ​​the solution after atomization, can better contact with the exhaust gas, is beneficial to improving the desulfurization and dust removal effect, uses a serpentine channel to extend the time required for gas overflow, thereby improving the washing effect, uses a dust detector to monitor the exhaust in real time, and uses an electromagnetic three-way valve to control the gas flow direction when it does not meet the standard, and can perform secondary purification treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4It is a schematic diagram of the internal structure of the purification cartridge in the present invention; Figure 5 It is a structural schematic diagram of the annular tube in the present invention; Figure 6 It is a schematic diagram of the structure of the water distribution pipe in the present invention when viewed from above.

[0017] In the figure: 1, base; 2, treatment box; 3, air inlet pipe; 4, liquid storage tank; 5, spray pipe; 6, liquid pump; 7, cylindrical shell; 8, steering shaft; 9, telescopic rod; 10, PLC controller; 11, purification cylinder; 12, air outlet pipe; 20, round hole; 21, baffle; 22, ladder; 23, inspection door; 24, sewage pipe; 25, control valve; 31, diversion pipe; 32, bronchial pipe; 33, annular pipe; 34, air hole; 51, main water pipe; 52, water distribution pipe; 53, atomizing nozzle; 71, infrared signal transmitter; 72, warehouse door; 73 , steering motor; 74, bevel gear one; 75, protective shell; 76, solar photovoltaic panel; 77, battery; 78, charge and discharge controller; 79, heat dissipation hole; 81, bevel gear two; 82, tension spring; 110, infrared signal receiver; 111, bellows; 112, metal ring sheet; 113, compression spring; 114, sealing ring; 115, ring electromagnet; 116, filter; 117, sponge layer; 118, activated carbon adsorption layer; 119, handle; 121, dust detector; 122, electromagnetic three-way valve; 123, reflux pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1 See also Figure 1-6 As shown, this embodiment is a waste copper smelting desulfurization and dust removal device, including a base 1, a processing box 2 is connected to the top of the base 1, an air inlet pipe 3 is connected to the bottom of the front side wall of the processing box 2, a liquid storage tank 4 is connected to the left side wall of the processing box 2, a spray pipe 5 is connected between the liquid storage tank 4 and the processing box 2, a liquid pump 6 is installed at one end of the spray pipe 5 extending into the liquid storage tank 4, a cylindrical shell 7 is connected to the top of the processing box 2, a steering shaft 8 is rotatably connected to the center of the cylindrical shell 7, three telescopic rods 9 are circumferentially connected to the outer wall of the steering shaft 8, and a purification cylinder 11 is connected to the free end of the telescopic rod 9, an air outlet pipe 12 is connected to the left side of the top of the cylindrical shell 7, and a PLC controller 10 is connected to the outer wall of the processing box 2.

[0020] The upper and lower ends of the purification cylinder 11 are connected with a bellows 111, the end of the bellows 111 is connected with a metal ring sheet 112, a compression spring 113 is connected between the metal ring sheet 112 and the purification cylinder 11, and a sealing ring 114 is connected to the end face of the metal ring sheet 112. Annular electromagnets 115 are embedded in the upper and lower outer walls of the purification cylinder 11, and the inner cavity of the purification cylinder 11 is connected with a filter screen 116, a sponge layer 117 and an activated carbon adsorption layer 118 from bottom to top. A tension spring 82 is connected between the circumferential outer wall of the purification cylinder 11 and the steering shaft 8, and a handle 119 and an infrared signal receiver 110 are connected to the side of the purification cylinder 11 away from the steering shaft 8.

[0021] A round through hole 20 is opened on the left side of the top of the processing box 2 , and the round through hole 20 , the left purification cylinder 11 , the bellows 111 , the metal annular sheet 112 and the air outlet pipe 12 are arranged coaxially.

[0022] The specific implementation of this embodiment is as follows: When the device is in use, the base 1 is placed on a flat surface, clean water is stored in the bottom of the inner cavity of the treatment box 2, and the liquid storage tank 4 is used to store alkaline solution. The waste gas from waste copper smelting is introduced into the treatment box 2 through the air inlet pipe 3, and the waste gas is washed with clean water to wash the dust in the waste gas. The cleaned gas overflows the water surface, and the alkaline solution in the liquid storage tank 4 is sucked by the liquid pump 6. The solution is sent out through the spray pipe 5 and contacts with the gas, so that the sulfur-containing gas can be neutralized and the sulfur content in the gas can be reduced. The gas after desulfurization and dust removal enters the purification cylinder 11 along the round through hole 20, and the gas is further purified by the filter 116, the sponge layer 117 and the activated carbon adsorption layer 118, which can improve the waste gas treatment effect.

[0023] Embodiment 2 On the basis of embodiment one, an infrared signal transmitter 71 is connected to the left side of the inner wall of the cylindrical shell 7, a compartment door 72 is opened on the right part of the outer wall of the cylindrical shell 7, a steering motor 73 is connected to the top of the cylindrical shell 7, the output end of the steering motor 73 is connected to bevel gear one 74, and the top of the steering shaft 8 is connected to bevel gear two 81, and bevel gear two 81 is meshedly connected to bevel gear one 74.

[0024] The top of the cylindrical shell 7 is connected to a protective shell 75, the top of the protective shell 75 is connected to a solar photovoltaic panel 76, the inner cavity of the protective shell 75 is connected to a battery 77 and a charge and discharge controller 78, the solar photovoltaic panel 76 is connected to the battery 77 through the charge and discharge controller 78, the battery 77 is electrically connected to the PLC controller 10, and the outer wall of the protective shell 75 is provided with heat dissipation holes 79, and the bevel gear 2 81, the bevel gear 1 74 and the steering motor 73 are all located in the inner cavity of the protective shell 75.

[0025] The specific implementation of this embodiment is as follows: In this embodiment, the solar photovoltaic panel 76 absorbs and converts light energy, and the energy is stored in the battery 77 through the charge and discharge controller 76 for use by the equipment, which is energy-saving and environmentally friendly. When the treatment effect of a group of purification cylinders 11 decreases, the annular electromagnet 115 is used to magnetically absorb the metal annular sheet 112, and the length of the compression spring 113 is shortened. The steering motor 73 drives the bevel gear 1 74 to rotate, and the bevel gear 1 74 engages the transmission bevel gear 2 81, so that the steering shaft 8 drives the telescopic rod 9 to deflect, and the position of the purification cylinder 11 changes. When the infrared signal receiver 110 receives the signal sent by the infrared signal transmitter 71, the annular electromagnet 115 is powered off, and the compression spring 113 drives the metal annular sheet 112 to reset, and the round hole 20 and the air outlet pipe 12 are connected with the left purification cylinder 11. The sealing ring 114 is used to improve the sealing effect, and the purified gas can be smoothly sent into the air outlet pipe 12. At this time, the warehouse door 72 is opened, and the old purification cylinder 11 is pulled out by the handle 119 for treatment. There is no need to stop the machine, and the normal exhaust gas treatment is not affected.

[0026] Embodiment 3 On the basis of the second embodiment, one end of the spray pipe 5 extending into the inner cavity of the treatment box 2 is connected to the main water pipe 51, and the pipe wall of the main water pipe 51 is connected to multiple parallel water distribution pipes 52. Multiple atomizing nozzles 53 are installed at equal distances on the bottom of the water distribution pipes 52, which increases the coverage area of ​​the solution after atomization, enables better contact with the exhaust gas, and is beneficial to improving the desulfurization and dust removal effect.

[0027] One end of the air inlet pipe 3 extending into the inner cavity of the treatment box 2 is connected to a diverter pipe 31. The diverter pipe 31 is arranged in an L-shaped structure. The vertical part of the diverter pipe 31 is connected to multiple bronchi 32. The multiple bronchi 32 are arranged in a circular array. The ends of the multiple bronchi 32 are commonly connected to an annular pipe 33. The top of the annular pipe 33 is circumferentially provided with multiple air holes 34, which can divert the intake air and fully contact it with clean water for washing.

[0028] Several groups of baffles 21 are arranged at intervals on the left and right side walls of the inner cavity of the processing box 2. Several groups of baffles 21 are combined in the processing box 2 to form a serpentine channel. The height of the baffles 21 is lower than the height of the atomizing nozzle 53. The serpentine channel is used to extend the time required for gas overflow, thereby improving the washing effect.

[0029] A ladder 22 is connected to the right side wall of the processing box 2, an inspection door 23 is installed on the rear side wall of the processing box 2, a sewage pipe 24 is connected to the bottom of the rear side wall of the processing box 2, and a control valve 25 is installed on the sewage pipe 24 to facilitate the inspection and drainage of the equipment.

[0030] A dust detector 121 is installed on the air outlet pipe 12, and the upper end of the air outlet pipe 12 is connected to an electromagnetic three-way valve 122. A reflux pipe 123 is connected between the left end of the electromagnetic three-way valve 122 and the upper part of the processing box 2. The dust detector 121 is used to monitor the exhaust gas in real time. When the gas does not meet the standard, the electromagnetic three-way valve 122 is used to control the gas flow direction, so that secondary purification treatment can be carried out.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A desulfurization and dust removal device for waste copper smelting, comprising a base (1), Features: The top of the base (1) is connected to a treatment box (2), the bottom of the front side wall of the treatment box (2) is connected to an air inlet pipe (3), the left side wall of the treatment box (2) is connected to a liquid storage box (4), a spray pipe (5) is connected between the liquid storage box (4) and the treatment box (2), and a liquid pump (6) is installed at one end of the spray pipe (5) extending into the liquid storage box (4), the top of the treatment box (2) is connected to a cylindrical shell (7), the center of the cylindrical shell (7) is rotatably connected to a steering shaft (8), the outer wall of the steering shaft (8) is circumferentially connected to three telescopic rods (9), the free ends of the telescopic rods (9) are connected to a purification cylinder (11), the left side of the top of the cylindrical shell (7) is connected to an air outlet pipe (12), and the outer wall of the treatment box (2) is connected to a PLC controller (10).

2. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: An infrared signal transmitter (71) is connected to the left side of the inner wall of the cylindrical shell (7), a door (72) is provided on the right side of the outer wall of the cylindrical shell (7), a steering motor (73) is connected to the top of the cylindrical shell (7), an output end of the steering motor (73) is connected to a bevel gear 1 (74), a bevel gear 2 (81) is connected to the top of the steering shaft (8), and the bevel gear 2 (81) is meshingly connected to the bevel gear 1 (74).

3. A waste copper smelting desulfurization and dust removal device according to claim 2, Features: The top of the cylindrical shell (7) is connected to a protective shell (75), the top of the protective shell (75) is connected to a solar photovoltaic panel (76), the inner cavity of the protective shell (75) is connected to a storage battery (77) and a charge and discharge controller (78), the solar photovoltaic panel (76) is connected to the storage battery (77) via the charge and discharge controller (78), the storage battery (77) is electrically connected to a PLC controller (10), a heat dissipation hole (79) is provided on the outer wall of the protective shell (75), and the bevel gear 2 (81), the bevel gear 1 (74) and the steering motor (73) are all located in the inner cavity of the protective shell (75).

4. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: The upper and lower ends of the purification cylinder (11) are connected to a bellows (111); the end of the bellows (111) is connected to a metal annular sheet (112); a compression spring (113) is connected between the metal annular sheet (112) and the purification cylinder (11); the end surface of the metal annular sheet (112) is connected to a sealing ring (114); an annular electromagnet (115) is embedded in the upper and lower outer walls of the purification cylinder (11); the inner cavity of the purification cylinder (11) is connected to a filter screen (116), a sponge layer (117) and an activated carbon adsorption layer (118) in sequence from bottom to top; a tension spring (82) is connected between the circumferential outer wall of the purification cylinder (11) and the steering shaft (8); and a handle (119) and an infrared signal receiver (110) are connected to the side of the purification cylinder (11) away from the steering shaft (8).

5. A waste copper smelting desulfurization and dust removal device according to claim 4, Features: A round through hole (20) is provided on the left side of the top of the processing box (2), and the round through hole (20) is arranged coaxially with the left purification cylinder (11), the bellows (111), the metal annular sheet (112) and the air outlet pipe (12).

6. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: One end of the spray pipe (5) extending into the inner cavity of the treatment box (2) is connected to a main water pipe (51), the wall of the main water pipe (51) is connected to a plurality of parallel water distribution pipes (52), and a plurality of atomizing nozzles (53) are installed at equal distances at the bottom of the water distribution pipes (52).

7. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: One end of the air inlet pipe (3) extending into the inner cavity of the treatment box (2) is connected to a shunt pipe (31); the shunt pipe (31) is arranged in an L-shaped structure; the vertical portion of the shunt pipe (31) is connected to a plurality of bronchial pipes (32); the plurality of bronchial pipes (32) are arranged in an annular array; the ends of the plurality of bronchial pipes (32) are commonly connected to an annular pipe (33); a plurality of air holes (34) are circumferentially provided at the top of the annular pipe (33).

8. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: A plurality of groups of baffles (21) are arranged at intervals on the left and right side walls of the inner cavity of the processing box (2). The plurality of groups of baffles (21) are combined in the processing box (2) to form a serpentine channel. The height of the baffles (21) is arranged lower than the height of the atomizing nozzle (53).

9. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: The right side wall of the processing box (2) is connected to a ladder (22), the rear side wall of the processing box (2) is installed with an inspection door (23), the bottom of the rear side wall of the processing box (2) is connected to a sewage pipe (24), and a control valve (25) is installed on the sewage pipe (24).

10. A waste copper smelting desulfurization and dust removal device according to claim 1, Features: A dust detector (121) is installed on the air outlet pipe (12), the upper end of the air outlet pipe (12) is connected to an electromagnetic three-way valve (122), and a return pipe (123) is connected between the left end of the electromagnetic three-way valve (122) and the upper part of the processing box (2).

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