Steel smelting waste gas environmental protection processing system
Technical Field
The invention relates to the field of waste gas treatment, in particular to an environment-friendly treatment system for waste gas generated in steel smelting.
Background
In the steel smelting process, the flue gas discharged in the sintering process is industrial waste gas with the largest quantity, more concentrated pollutant types and higher concentration. The main atmospheric pollutants contained in the sintering flue gas include heavy metals such as SO2, NO, Hg and the like and organic pollutants such as dioxin and the like, and according to statistics, about 4000-6000ml of flue gas is generated in each 1t of sintering production, the flue gas carries a large amount of dust, the dust content is generally 0.5-15g/m3, and the flue gas contains acidic gaseous pollutants such as SOx, NOx and the like. Therefore, the treatment and purification of waste gas generated in steel smelting are the key points of energy conservation and emission reduction of atmospheric pollutants in the metallurgical industry, and the existing steel smelting waste gas treatment device has the following problems when in use:
(1) most of the existing methods adopt humidification purification to treat waste gas, the waste gas is usually adsorbed after sponge is wetted, but the sponge after adsorption is taken out, and the new wetted sponge is tedious to continuously adsorb the smoke gas and cannot be synchronously carried out, so that the replacement time is delayed, a large amount of smoke gas cannot be filtered, and the sponge cannot be simply and quickly disassembled and assembled;
(2) because the waste gas in smelting steel smelting is high in temperature when discharging, melts the blast pipe sponge easily, causes the damage to exhaust treatment device to exhaust emission is high temperature also does not utilize in exhaust treatment.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides an environment-friendly treatment system for waste gas generated in steel smelting.
The technical scheme adopted by the invention to solve the technical problem is as follows: an environment-friendly treatment system for waste gas generated in steel smelting comprises a base, a filtering device, a transposition device and a heat exchange device, wherein the filtering device is fixedly arranged on the upper surface of the base, the transposition device fixedly connected with the base is arranged on the right side of the filtering device, the heat exchange device fixedly connected with the base is arranged on the left side of the filtering device, and the heat exchange device fixedly connected with the base is arranged on the left side of the filtering device; wherein:
the filtering device comprises a supporting seat, an L-shaped pipe, a rotating plate, telescopic rods, pressing plates, a reset spring, a sealing sheet, a limit baffle and a limit spring, wherein the supporting seat is fixedly arranged at the middle part of the upper surface of the base, the L-shaped pipe is fixedly arranged on the upper surface of the supporting seat, the side wall of the L-shaped pipe is provided with a through hole, the rotating plate is hinged at one side opposite to the upper surface and the lower surface in the through hole, the telescopic rods are fixedly arranged at one side opposite to the two rotating plates, the pressing plates are fixedly arranged at one ends opposite to the two telescopic rods, the sealing sheet is fixedly arranged at one end close to the two pressing plates, the limit baffle fixedly connected with the L-shaped plate is arranged at the right side of the rotating plate at the upper side and the left side of the rotating plate at the lower side, when the sponge in the L-shaped pipe is replaced, the rotating plate on the upper side moves towards the inner side wall of the L-shaped pipe under the action of external force, meanwhile, the rotating plate on the lower side moves outwards, the rotating plate is driven by the limiting spring to reset when the sponge is rotated out, the swinging of the limiting baffle when the rotating plate is reset is limited, and the limiting baffle is quickly and rightly positioned, so that the rotating plate is prevented from swinging for a long time to discharge a large amount of waste gas in the L-shaped pipe under the condition of no filtration;
the transposition device comprises a supporting plate, a transposition motor, a rotary plate, a driving rod, a rotary shaft, grooved wheels, supporting columns, sponge frames, customized sponges and a fixing mechanism, wherein the supporting plate is fixedly connected with a base, the transposition motor is fixedly installed at the rear part of the supporting plate through a motor plate, the output end of the transposition motor penetrates through the supporting plate and is fixedly installed with the rotary plate, the driving rod is fixedly installed on the upper surface of the rotary plate close to the outer side, the rotary shaft fixedly connected with the supporting plate is arranged above the rotary plate, the grooved wheels are fixedly installed on the upper surface of the rotary shaft, four through holes are circumferentially formed in the upper surface of each grooved wheel, the driving rod is contacted with one through hole at a time, the supporting columns are fixedly installed on the upper surface of each grooved wheel, four sponge frames are circumferentially and fixedly installed, the transposition motor is started to drive the turntable to rotate, and the driving rod is contacted with the through hole in the grooved pulley to drive the grooved pulley to rotate at a certain angle when the turntable rotates, so that the customized sponge is driven to be converted.
Preferably, fixed establishment includes fixed box, fixed chamber, the latch ware, joint spring and extrusion mechanism, fixed box and sponge frame fixed connection, fixed box inner chamber sets up the fixed chamber that runs through the sponge frame, the symmetry is equipped with the latch ware about the fixed intracavity, be equipped with fixed spring between two latch wares, latch ware one end and customization sponge joint, fixed box below is equipped with the extrusion mechanism with base fixed connection, through pressing two latch wares from top to bottom, make the latch ware be close to mutually at fixed chamber through the joint spring, make the one end of latch ware and customization sponge contact break away from the customization sponge, just take out the customization sponge from the positive spout of seting up of sponge frame.
Preferably, the extrusion mechanism comprises hydraulic rods, a T-shaped frame, a two-way screw rod, a hand wheel, extrusion blocks, an extrusion plate and a guide rod, two hydraulic rods are fixedly installed on the upper surface of the base from left to right, the T-shaped frame with an upward opening is fixedly installed on the upper surfaces of the two hydraulic rods together, the two-way screw rod is rotatably installed on the upper portion of an inner cavity of the T-shaped frame through a bearing, the hand wheel is fixedly installed on the right side of the two-way screw rod penetrating through the T-shaped frame, the extrusion blocks are installed on two sides of the two-way screw rod through threads, the guide rod is fixedly installed on the upper surfaces of the two extrusion blocks, the guide rod fixedly connected with the inner cavity of the T-shaped frame is arranged above the two-way screw rod and the extrusion plate in a sliding connection manner, the hand wheel is rotated by forward rotation of the hand wheel, the two-way screw, avoiding secondary pollution to the environment.
Preferably, heat transfer device includes the heat transfer case, the inlet tube, the drain pipe, drainage valve, fin and weighing apparatus temperature mechanism, heat transfer case fixed mounting is on the base upper surface, and L type pipe runs through the heat transfer case, be equipped with sealed the pad between L type pipe and the heat transfer case, be equipped with in the heat transfer case with L type pipe fixed connection's fin, fixed surface installs the inlet tube on the heat transfer case, heat transfer case left side lower part fixed mounting has the drain pipe, be equipped with drainage valve on the drain pipe, the inside weighing apparatus temperature mechanism that is equipped with of heat transfer case, when the waste gas of L type pipe is from when the heat transfer case, the fin on the L type pipe carries out condensation treatment with the high temperature in the waste gas and the cold water in the heat transfer case, reduce the temperature of waste gas fast, the waste gas that reduces when carrying out environmental protection treatment to the.
Preferably, the weighing apparatus temperature mechanism includes weighing apparatus temperature motor, one-way screw rod, remove the frame, puddler and push rod, there is the weighing apparatus temperature motor heat transfer case left side upper portion through motor board fixed mounting, weighing apparatus temperature motor output fixed mounting has one-way screw rod, and one-way screw rod rotates with the thermostated container inner wall to be connected, one-way screw rod outside screw thread mounting has the removal frame, remove frame lower part fixed mounting has the puddler, remove the frame right side be equipped with heat transfer case fixed connection's push rod, through opening the weighing apparatus temperature motor, the weighing apparatus temperature motor drives one-way screw rod and rotates, one-way screw rod removes through removing the frame drive puddler and removes and carry out the constant temperature to the water in the heat transfer case, the temperature.
Preferably, the plastic structure bottom of customization sponge both sides symmetry installation has seted up U type groove, with joint ware looks adaptation, through U type groove and joint ware looks adaptation, can be more stable in the sponge frame when the customization sponge replaces, avoids breaking away from because external force produces.
Preferably, the sump pit has been placed to T type frame inner chamber upper surface, can collect the processing to the contaminated water in the customization sponge after the extrusion through the sump pit, and the heavy metal purification of aquatic is retrieved.
Compared with the prior art, the invention has the following advantages:
1. according to the environment-friendly treatment system for the waste gas generated in the steel smelting, provided by the invention, the rotating plate can be moved to be quickly reset when the sponge is replaced through the filtering device, the situation that the rotating plate cannot be quickly rightly aligned to discharge the waste gas which is not filtered in the L-shaped pipe when the sponge is replaced and the environment is polluted is avoided, the sponge in the L-shaped pipe can be quickly replaced through the replacing device, more waste gas is avoided being discharged, the used sponge can be quickly disassembled and assembled after being extruded through the fixing mechanism, and heat exchange during the waste gas discharging can be realized through the heat exchange device, so that the waste of heat is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic diagram of a partial right view configuration of the present invention;
fig. 3 is a schematic view of the sheave mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the fastening mechanism of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 1 according to the present invention;
FIG. 6 is an enlarged view of the portion B of FIG. 1 according to the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 6.
An environment-friendly treatment system for waste gas generated in steel smelting comprises a base 1, a filtering device, a transposition device and a heat exchange device, wherein the filtering device is fixedly arranged on the upper surface of the base 1, the transposition device fixedly connected with the base 1 is arranged on the right side of the filtering device, the heat exchange device fixedly connected with the base 1 is arranged on the left side of the filtering device, and the heat exchange device fixedly connected with the base 1 is arranged on the left side of the filtering device; wherein:
the filtering device comprises a supporting seat 21, an L-shaped pipe 22, rotating plates 23, telescopic rods 24, a pressing plate 25, a reset spring 26, a sealing sheet 27, a limiting baffle 28 and a limiting spring 29, wherein the supporting seat 21 is fixedly installed in the middle of the upper surface of a base 1, the L-shaped pipe 22 is fixedly installed on the upper surface of the supporting seat 21, a through hole is formed in the side wall of the L-shaped pipe 22, the rotating plates 23 are hinged to opposite sides of the upper surface and the lower surface in the through hole, the telescopic rods 24 are fixedly installed on opposite sides of the two rotating plates 23, the pressing plate 25 is fixedly installed at opposite ends of the two telescopic rods 24, the sealing sheet 27 is fixedly installed at the end, close to the two pressing plates 25, the limiting baffle 28 fixedly connected with the L-shaped plate is arranged on the right side of the rotating plate 23 at the upper side and on the left side, the outer side of the telescopic rod 24 is sleeved with a limiting spring 29, the limiting spring 29 is located between the rotating plate and the pressing plate, and when the upper rotating plate 23 is contacted by the customized sponge 39 which is about to enter the L-shaped pipe 22, the upper rotating plate 23 rotates leftwards. When the customized sponge 39 in the L-shaped pipe 22 rotates out, the lower side rotating plate 23 rotates rightwards, meanwhile, the telescopic rod 24 drives the pressing plate 25 to retract backwards, when the customized sponge 39 is in the right position, the upper side rotating plate 23 and the lower side rotating plate 23 stop shaking rapidly through the limiting spring 29 and the limiting baffle 28, and unfiltered waste gas is prevented from being discharged due to long-time shaking;
the transposition device comprises a supporting plate 31, a transposition motor 32, a rotating plate 33, a driving rod 34, a rotating shaft 35, a grooved pulley 36, a supporting column 37, a sponge frame 38, a customized sponge 39 and a fixing mechanism 5, wherein the supporting plate 31 is fixedly connected with the base 1, the transposition motor 32 is fixedly installed at the rear part of the supporting plate 31 through a motor plate, the rotating plate 33 is fixedly installed at the output end of the transposition motor 32 by penetrating through the supporting plate 31, the driving rod 34 is fixedly installed at the upper surface of the rotating plate 33 close to the outer side, the rotating shaft 35 fixedly connected with the supporting plate 31 is arranged above the rotating plate 33, the grooved pulley 36 is fixedly installed at the upper surface of the rotating shaft 35, four through holes are circumferentially formed in the upper surface of the grooved pulley 36, the driving rod 34 is contacted with one through hole at a time, the supporting column 37 is fixedly installed, and one sponge runs through the inner cavity of the L-shaped pipe 22 at each time, fixing mechanisms 5 are fixedly mounted on two sides of the sponge frame 38, when the customized sponge 39 in the L-shaped pipe 22 needs to be replaced, the transposition motor 32 is started, the transposition motor 32 drives the turntable 33 to rotate, the turntable 33 drives the grooved pulley 36 to rotate through the driving rod 34 when rotating, the grooved pulley 36 drives the supporting column 37 to rotate, the supporting column 37 rotates to convert the angle of the customized sponge 39 on the supporting column 37, the uppermost customized sponge 39 is replaced into the L-shaped pipe 22, meanwhile, the customized sponge 39 filtered in the L-shaped pipe 22 is converted to the position above the extrusion plate 66, conversion is faster, and pollution to air caused by more exhaust gas is avoided.
Fixing mechanism 5 includes fixed box 51, fixed chamber 52, latch 53, joint spring 54 and extrusion mechanism 6, fixed box 51 and sponge frame 38 fixed connection, fixed chamber 52 that runs through sponge frame 38 is seted up to fixed box 51 inner chamber, the symmetry is equipped with latch 53 about in the fixed chamber 52, be equipped with fixed spring between two latch 53, latch 53 one end and customization sponge 39 joint, fixed box 51 below is equipped with when fixing customization sponge 39 with extrusion mechanism 6 of base 1 fixed connection, press two latch 53, put into sponge frame 38 with customization sponge 39 simultaneously, loosen latch 53, latch 53 blocks sponge frame 38, when needs dismantle, press two latch 53 when pressing two latch 53 not contact with customization sponge 39, take out the sponge simultaneously and can.
The extrusion mechanism 6 comprises a hydraulic rod 61, a T-shaped frame 62, a two-way screw 63, a hand wheel 64, an extrusion block 65, an extrusion plate 66 and a guide rod 67, the upper surface of the base 1 is fixedly provided with the two hydraulic rods 61 from left to right, the upper surfaces of the two hydraulic rods 61 are fixedly provided with the T-shaped frame 62 with an upward opening together, the upper part of the inner cavity of the T-shaped frame 62 is rotatably provided with the two-way threaded rod through a bearing, the two-way screw 63 penetrates through the right side of the T-shaped frame 62 and is fixedly provided with the hand wheel 64, the two sides of the two-way screw 63 are both provided with the extrusion block 65 through threads, the upper surfaces of the two extrusion blocks 65 are fixedly provided with the guide rod 67, the guide rod 67 is fixedly connected with the inner cavity of the T-shaped frame 62 and is slidably connected with the extrusion plate 66, when the converted customized sponge 39 is extruded, the hand wheel 64 is forwardly rotated, the hand wheel 64 drives the two extrusion plates 66 to relatively And the sewage on the customized sponge 39 is extruded by extrusion, so that secondary pollution to the environment is avoided.
The heat exchange device comprises a heat exchange box 41, a water inlet pipe 42, a water outlet pipe 43, a water outlet valve 44, fins 45 and a temperature balancing mechanism 7, wherein the heat exchange box 41 is fixedly arranged on the upper surface of the base 1, the L-shaped pipe 22 penetrates through the heat exchange box 41, a sealing gasket is arranged between the L-shaped pipe 22 and the heat exchange box 41, a fin 45 fixedly connected with the L-shaped pipe 22 is arranged in the heat exchange box 41, a water inlet pipe 42 is fixedly arranged on the upper surface of the heat exchange box 41, a water outlet pipe 43 is fixedly arranged at the lower part of the left side of the heat exchange box 41, a water outlet valve 44 is arranged on the water outlet pipe 43, a temperature balancing mechanism 7 is arranged in the heat exchange box, when the exhaust gas passes through a section in the heat exchange box 41 through the L-shaped pipe 22, the cold water injected into the heat exchange box 41 from the water inlet pipe 42 condenses the exhaust gas through the fins 45, so that the heat in the exhaust gas is rapidly converted, and the waste of hot gas and the damage of high-temperature waste gas to the customized sponge 39 are avoided by fully utilizing the waste of the hot gas.
The constant temperature mechanism 7 comprises a constant temperature motor 71, a one-way screw 72, a moving frame 73, a stirring rod 74 and a push rod 75, the constant temperature motor 71 is fixedly mounted on the upper portion of the left side of the heat exchange box 41 through a motor plate, the one-way screw 72 is fixedly mounted at the output end of the constant temperature motor 71, the one-way screw 72 is rotatably connected with the inner wall of the constant temperature box, the moving frame 73 is mounted on the outer side of the one-way screw through threads, the stirring rod 74 is fixedly mounted on the lower portion of the moving frame 73, the push rod 75 fixedly connected with the heat exchange box 41 is arranged on the right side of the moving frame 73, the constant temperature motor 71 rotates forward and backward, the one-way screw 72 drives the one-way screw 72 to rotate, the one-way screw 72 drives the stirring rod 74 to move left and right through the moving frame 73, water temperature.
The bottom of the plastic structure with the two sides of the custom sponge 39 symmetrically arranged is provided with a U-shaped groove which is matched with the clamping device 53.
The sump 8 has been placed to T type frame 62 inner chamber upper surface, can unify the collection through sump 8 to the waste gas contaminated water that advances that produces after the extrusion, avoids the secondary pollution to the environment, has made things convenient for the processing of drawing of later to the precipitate.
Firstly, cold water is injected into the heat exchange box 41, the constant temperature motor 71 is started, the constant temperature motor 71 drives the stirring rod 74 to exchange heat through the fins when waste gas enters the L-shaped pipe 22 and then is located in the cavity section of the heat exchange box 41, heat is utilized, then when the waste gas is replaced by the customized sponge 39 after being filtered for a period of time, the transposition motor 32 is started, the transposition motor 32 drives the turntable 33 to rotate to realize rotation of the rotating shaft 35, conversion of the customized sponge 39 of each station is realized, the exchanged sponge is extruded and drained through the forward rotation hand wheel 64, and finally the customized sponge 39 is taken out by pressing the clamping device 53.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.