An integrated device for dust removal and desulfurization of blast furnace gas

Abstract

The present invention relates to the technical field of coal gas treatment, and discloses an integrated device for dust removal and desulfurization of blast furnace coal gas, comprising a dust removal box and a desulfurization box, a partition is arranged between the top of the dust removal box and the bottom of the desulfurization box, a mounting plate is arranged inside the dust removal box, a ventilation groove is opened on the mounting plate, a plurality of groups of dust removal bags are installed between the upper part of the ventilation groove and the lower surface of the partition, a gas supply pipe is arranged at the top of the dust removal box and connected to one side of the desulfurization box, an alkali liquid stirring device is arranged inside the desulfurization box, the alkali liquid stirring device comprises a fixed seat, and the four sides of the fixed seat are fixedly connected to the inner wall of the desulfurization box by support rods; when the rotating shaft rotates, the technical scheme can not only stir the alkali liquid, but also perform gas supply treatment, which is beneficial to increase the kinetic energy utilization rate, facilitate the control of the oxygen concentration in the alkali liquid, and has a good use effect.

Description

Technical Field

[0001] The invention relates to the technical field of coal gas treatment, and in particular to an integrated device for dust removal and desulfurization of blast furnace coal gas. Background Art

[0002] Blast furnace gas is a combustible gas produced as a byproduct during the blast furnace ironmaking process. Its main components are carbon dioxide, carbon monoxide, hydrogen, nitrogen, hydrocarbons and sulfur dioxide. Its dust concentration is 10-50 grams per cubic meter (standard conditions), and the average dust production is 50kg / t (pig iron) -75kg / t (pig iron). The dust particle size is below 500μm, mainly iron, ferrous oxide, aluminum oxide, silicon oxide, magnesium oxide and coke powder. When treating blast furnace gas, it is necessary to remove dust and desulfurize the blast furnace gas.

[0003] Currently, during desulfurization, blast furnace gas needs to come into contact with alkali solution, such as lime emulsion. The lime emulsion absorbs SO2 in the gas to generate CaSO3, which is then oxidized into CaSO4 through the CaSO3 oxidation system, i.e., gypsum precipitation. In order to speed up the full reaction of alkali solution and sulfur dioxide, the alkali solution needs to be stirred at the bottom. At the same time, when there is insufficient oxygen in the alkali solution, an air supply pump is needed to supply air.

[0004] Although the above-mentioned stirring and gas supply process can accelerate the full reaction of alkali solution and sulfur dioxide and help to produce gypsum precipitation, since the stirring process is uninterrupted, the power output during the stirring process is only used for stirring, which will cause waste of output kinetic energy. At the same time, an additional air supply pump is required for gas supply, which not only increases energy consumption, but also makes it inconvenient to control the oxygen concentration in the alkali solution, resulting in unsatisfactory use effect. In addition, when blast furnace gas is subjected to dust removal and desulfurization treatment, dust removal and desulfurization are generally carried out separately, and there are few integrated dust removal and desulfurization equipment, thereby reducing the overall efficiency of blast furnace gas in dust removal and desulfurization. Summary of the invention

[0005] The present invention provides an integrated blast furnace gas dust removal and desulfurization device, which has the purpose of achieving gas supply while stirring, which not only improves the utilization of output kinetic energy, reduces the use of gas supply pumps, saves energy consumption, and facilitates the control of oxygen concentration in alkali solution, but also adopts an integrated arrangement of a dust removal box and a desulfurization box, which solves the problems of waste of output kinetic energy, increased energy consumption, inconvenience in controlling the oxygen concentration in the alkali solution, unsatisfactory use effect, and reduced overall efficiency of blast furnace gas in dust removal and desulfurization mentioned in the above background technology.

[0006] The present invention provides the following technical solutions: an integrated device for blast furnace gas dust removal and desulfurization, comprising a dust removal box and a desulfurization box, a partition is arranged between the top of the dust removal box and the bottom of the desulfurization box, a mounting plate is arranged inside the dust removal box, a ventilation groove is opened on the mounting plate, a plurality of groups of dust removal bags are installed between the top of the ventilation groove and the lower surface of the partition, a gas pipeline is arranged at the top of the dust removal box and connected to one side of the desulfurization box, an alkali liquid stirring device is arranged inside the desulfurization box, the alkali liquid stirring device comprises a fixed seat, the four sides of the fixed seat are fixedly connected to the inner wall of the desulfurization box by support rods, a rotating shaft is rotatably arranged in the middle position of the fixed seat, a driving assembly is arranged at the top of the rotating shaft, and a rotating disk is fixedly arranged at the bottom end of the rotating shaft;

[0007] An air flow channel is opened inside the rotating shaft, an air pipe is connected to one side of the desulfurization box, one end of the air pipe is connected to the air flow channel, and the top of the rotating shaft is rotatably connected to the air pipe, and the outer surface of the rotating shaft is provided with several groups of air supply components connected to the bottom of the air flow channel, and several groups of the air supply components supply air through the rotation of the rotating shaft, and an alkali solution spraying component is provided between the top and the outer surface of the desulfurization box.

[0008] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, the driving assembly includes a driving motor, which is fixedly mounted on the outer surface of the desulfurization box, and the output end of the driving motor is transmission-connected to a driving shaft, and the other end of the driving shaft is key-connected to a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is key-connected to the circumference of the rotating shaft.

[0009] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, the gas supply assembly includes a gas cylinder fixed to the outer surface of the rotating shaft, a piston plate is slidably arranged in the gas cylinder, a lifting rod is fixedly arranged on the upper surface of the piston plate, a first spring is fixedly arranged on the surface of the piston plate, the first spring is movably sleeved on the circumference of the lifting rod, and the other end of the first spring is fixedly arranged on the top wall of the gas cylinder, an annular groove is opened on the lower surface of the fixed seat, and the top of the lifting rod is slidably arranged in the annular groove.

[0010] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, an air intake port is provided between the bottom of the air flow channel and the bottom of the air cylinder, a first one-way valve is installed in the air intake port, and an exhaust port is provided on the other side of the bottom of the air cylinder, a second one-way valve is installed in the exhaust port.

[0011] As an optional scheme of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, a first wedge block is fixed to the lower surface of the rotating disk, an adjusting column is penetrated through the partition, a second wedge block slidingly cooperated with the first wedge block is fixed to the top of the adjusting column, several groups of dust bags are sleeved on the outer sides with circular rings, connecting plates are fixed between adjacent circular rings, the bottom of the adjusting column is fixed to the upper surface of the connecting plate, a second spring is sleeved on the circumference of the adjusting column, the two ends of the second spring are respectively fixed between the lower surface of the partition and the upper surface of the connecting plate, and beating components for beating the dust bags are arranged on both sides of the circular ring.

[0012] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, the flapping assembly includes a rotating rod fixedly arranged inside the dust removal box, a rotating rod is rotatably connected to the circumference of the rotating rod through a torsion spring, a fixed block is hinged to the bottom of the rotating rod through a pin shaft, a flapping plate is fixed to the outer surface of the fixed block, and a pushing rod for pushing the rotating rod to rotate is fixed to the outer surface of the ring.

[0013] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, a third spring is arranged on both sides of the second spring, both ends of the third spring are fixed between the lower surface of the partition and the upper surface of the connecting plate, and a counterweight block is fixed on the lower surface of the flapping plate.

[0014] As an optional scheme of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, a guide rod is fixed to the lower surface of the partition, the guide rod passes through the circular ring, and a plurality of groups of arc grooves are opened on the inner surface of the guide rod, a protrusion is fixed to the inner surface of the circular ring, and a knocking column is slidably connected inside the protrusion, one end of the knocking column is slidably inserted in the arc groove, and the other end of the knocking column is in contact with the outer surface of the dust bag, and both ends of the knocking column are arranged as circular surface structures, and a fourth spring is sleeved on the circumference of the knocking column, and the end of the fourth spring close to the dust bag is fixed to the knocking column.

[0015] As an optional scheme of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, the alkali solution spray assembly includes a support plate fixed on the outer surface of the desulfurization box, a water pump is fixed on the support plate, the input end of the water pump is connected to the interior of the desulfurization box, and a filter mesh cover is provided on the outer cover of the input end of the water pump, the output end of the water pump is connected to an infusion pipe, the top of the infusion pipe is connected to a guide pipe, the guide pipe is fixedly arranged on the top of the desulfurization box, and several groups of diversion pipes are symmetrically arranged on both sides of the guide pipe, and several groups of nozzles are arranged on the lower surfaces of several groups of diversion pipes.

[0016] As an optional solution of the integrated blast furnace gas dust removal and desulfurization device described in the present invention, a plurality of groups of legs are fixedly provided at the bottom of the dust removal box, a gas inlet is provided on one side of the dust removal box, and a gas outlet is provided on the top of the desulfurization box.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the integrated device for dust removal and desulfurization of blast furnace gas, the integrated design of the dust removal box and the desulfurization box allows the gas to be sprayed with an alkali solution spray assembly after dust removal by the dust removal bag, thereby completing the desulfurization treatment. The integrated design allows the desulfurization treatment to be completed directly after the dust removal, thereby reducing the total efficiency of the blast furnace gas in dust removal and desulfurization. At the same time, the alkali solution stirring device is provided, and the driving assembly drives the rotating shaft to rotate, and the rotating shaft drives the rotating disk to rotate, so that the rotating disk can stir the alkali solution. At the same time, the air supply assembly is provided, and when the driving assembly drives the rotating shaft to rotate, the piston rod and the lifting and reciprocating motion of the lifting rod are used to enable the gas cylinder to inhale air from the air pipe and exhaust air from the exhaust port, so that when the rotating shaft rotates, the alkali solution is supplied with air, which is beneficial to increase the utilization rate of kinetic energy, facilitate the control of the oxygen concentration in the alkali solution, and has a good use effect.

[0019] 2. In the integrated device for blast furnace gas dust removal and desulfurization, the adjusting column elastically connected between the partition plate and the connecting plate drives the first wedge block to rotate when the rotating disk rotates. When the first wedge block rotates, it will conflict with the second wedge block. The first wedge block and the second wedge block slide relative to each other, so that the second wedge block can reciprocate up and down. At the same time, the adjusting column drives the connecting plate and the circular ring to reciprocate up and down. When the circular ring reciprocates up and down, the flapping plate on the surface of the circular ring is forced to conflict with the push rod, and the push rod is connected to the torsion spring by the torsion spring. The rotating rod is rotatably connected, and when the flapping plate contacts the pushing rod, the pushing rod can be reciprocated around the rotating rod, so that when the pushing rod rotates, the flapping plate connected to the other end is driven to flap the outer surface of the dust bag, so that when dust removal is performed, the dust filtered on the dust bag can be discharged from the filter holes of the dust bag to achieve the purpose of backwashing, and the dust can be prevented from clogging the filter holes of the dust bag during dust removal, thereby facilitating the ventilation effect of the dust bag, and the dust removal efficiency is high and it is not easy to be blocked, so it is more convenient to use;

[0020] In order to further improve the effect of the up and down reciprocating motion of the ring, the technical solution also arranges a third spring on both sides of the second spring, and the third spring provides a stable restoring force, so that the up and down reciprocating motion of the ring is smoother;

[0021] In order to further improve the beating effect of the dust bag, the technical solution also fixes a counterweight block on the lower surface of the beating plate. The counterweight block can keep the beating plate in a vertical state to improve the beating effect.

[0022] 3. In the integrated device for blast furnace gas dust removal and desulfurization, a guide rod is set up and several groups of arc grooves are opened on the guide rod. The fourth spring is used to make one end of the knocking column abut against one of the arc grooves. In the process of reciprocating lifting of the ring, one end of the knocking column slides along the surface of the guide rod and alternately enters and exits different arc grooves, prompting the knocking column to perform horizontal reciprocating motion, so that the knocking column knocks on the top position of the dust bag, further reducing the possibility of blockage on the top of the dust bag and greatly improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0024] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 3 This is one of the schematic diagrams of the structure inside the dust removal box and the desulfurization box of the present invention.

[0026] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 This is the second schematic diagram of the structure inside the dust removal box and the desulfurization box of the present invention.

[0028] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle.

[0029] Figure 7 For the present invention Figure 1 Structural cross-section view in the C direction.

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point D in the middle.

[0031] Fig. 9 For the present invention Figure 7 Enlarged view of point E in the middle.

[0032] Fig.10 For the present invention Fig. 9 Enlarged view of point F in the middle.

[0033] Fig.11 It is a schematic structural diagram of the annular chute part in the present invention.

[0034] Fig.12 It is a top view of the ring and dust bag part in the present invention.

[0035] Fig.13 It is the distribution diagram of the diverter pipe in the present invention.

[0036] Fig.14 For the present invention Fig.12 Enlarged view of point G in the middle.

[0037] In the figure: 1. dust removal box; 2. desulfurization box; 3. partition; 4. mounting plate; 5. ventilation groove; 6. dust removal bag; 7. air pipe; 8. fixing seat; 9. support rod; 10. rotating shaft; 11. driving assembly; 111. driving motor; 112. driving shaft; 113. first bevel gear; 114. second bevel gear; 12. rotating plate; 13. air flow channel; 14. air pipe; 15. air supply assembly; 151. air cylinder; 152. piston plate; 153. lifting rod; 154. first spring; 155. annular slide; 156. air inlet; 157. first one-way valve; 158. exhaust port; 159. second one-way valve; 16. alkali solution spraying group Parts; 161, support plate; 162, water pump; 163, filter screen; 164, infusion tube; 165, guide tube; 166, shunt tube; 167, nozzle; 17, first wedge block; 18, adjustment column; 19, second wedge block; 20, ring; 21, connecting plate; 22, second spring; 23, slapping assembly; 231, rotating rod; 232, rotating rod; 233, fixed block; 234, slapping plate; 235, pushing rod; 236, third spring; 237, counterweight; 24, guide rod; 25, arc groove; 26, protrusion; 27, knocking column; 28, fourth spring; 29, support leg; 30, gas inlet; 31, gas outlet. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1

[0040] See also Figure 1-Figure 14, a blast furnace gas dust removal and desulfurization integrated device, comprising a dust removal box 1 and a desulfurization box 2, a partition 3 is arranged between the top of the dust removal box 1 and the bottom of the desulfurization box 2, a mounting plate 4 is arranged inside the dust removal box 1, a ventilation groove 5 is opened on the mounting plate 4, a plurality of dust removal bags 6 are installed between the ventilation groove 5 and the lower surface of the partition 3, a gas pipeline 7 is arranged between the top of the dust removal box 1 and one side of the desulfurization box 2, an alkali liquid stirring device is arranged inside the desulfurization box 2, the alkali liquid stirring device comprises a fixed seat 8, the four sides of the fixed seat 8 are fixedly connected to the inner wall of the desulfurization box 2 by support rods 9, a rotating shaft 10 is rotatably arranged in the middle position of the fixed seat 8, a driving assembly 11 is arranged at the top of the rotating shaft 10, and a rotating disk 12 is fixedly arranged at the bottom of the rotating shaft 10;

[0041] An air flow channel 13 is provided inside the rotating shaft 10, an air pipe 14 is provided on one side of the desulfurization box 2, one end of the air pipe 14 is connected to the air flow channel 13, and the top of the rotating shaft 10 is rotatably connected to the air pipe 14, and a plurality of groups of air supply components 15 connected to the bottom of the air flow channel 13 are provided on the outer surface of the rotating shaft 10, and the plurality of groups of air supply components 15 are rotated by the rotating shaft 10 to supply air, and an alkali solution spray component 16 is provided between the top and the outer surface of the desulfurization box 2;

[0042] The driving assembly 11 includes a driving motor 111, which is fixedly mounted on the outer surface of the desulfurization box 2. The output end of the driving motor 111 is drivingly connected to a driving shaft 112, and the other end of the driving shaft 112 is keyed to a first bevel gear 113, the first bevel gear 113 is meshed with a second bevel gear 114, and the second bevel gear 114 is keyed to the circumference of the rotating shaft 10;

[0043] The air supply assembly 15 includes an air cylinder 151 fixed to the outer surface of the rotating shaft 10, a piston plate 152 is slidably arranged in the air cylinder 151, a lifting rod 153 is fixedly arranged on the upper surface of the piston plate 152, a first spring 154 is fixedly arranged on the surface of the piston plate 152, the first spring 154 is movably sleeved on the circumference of the lifting rod 153, and the other end of the first spring 154 is fixedly arranged on the top wall of the air cylinder 151, an annular groove 155 is opened on the lower surface of the fixing seat 8, and the top of the lifting rod 153 is slidably arranged in the annular groove 155;

[0044] An air inlet 156 is provided between the bottom of the air channel 13 and the bottom of the air cylinder 151, and a first one-way valve 157 is installed in the air inlet 156. An air outlet 158 ​​is provided at the other side of the bottom of the air cylinder 151, and a second one-way valve 159 is installed in the air outlet 158.

[0045] The alkali solution spraying assembly 16 includes a support plate 161 fixed on the outer surface of the desulfurization box 2, a water pump 162 is fixed on the support plate 161, the input end of the water pump 162 is connected to the inside of the desulfurization box 2, and the outer cover of the input end of the water pump 162 is provided with a filter screen cover 163, the output end of the water pump 162 is connected to a liquid infusion pipe 164, the top of the liquid infusion pipe 164 is connected to a guide pipe 165, the guide pipe 165 is fixedly arranged on the top of the desulfurization box 2, and a plurality of groups of shunt pipes 166 are symmetrically arranged on both sides of the guide pipe 165, and a plurality of groups of nozzles 167 are arranged on the lower surfaces of the plurality of groups of shunt pipes 166;

[0046] A plurality of groups of legs 29 are fixedly provided at the bottom of the dust removal box 1, a gas inlet 30 is provided at one side of the dust removal box 1, and a gas outlet 31 is provided at the top of the desulfurization box 2;

[0047] In the technical scheme, when the dust removal and desulfurization work is performed, the blast furnace gas is transported through the gas inlet 30, enters the dust bag 6 through the ventilation groove 5, the dust bag 6 filters the dust, and the gas passes through the dust bag 6 to complete the dust removal work, and then enters the desulfurization box 2 through the gas pipe 7. Alkaline solution is set at the bottom of the desulfurization box 2, and the alkaline solution is extracted by the water pump 162, and is sprayed from the nozzle 167 through the liquid delivery pipe 164, the guide pipe 165, and the shunt pipe 166, so that the sulfur dioxide in the gas is adsorbed and falls, and fully reacts in the alkaline solution at the bottom to complete the desulfurization treatment. The treated gas is discharged from the gas outlet 31. The integrated design of the dust removal box 1 and the desulfurization box 2 can directly complete the desulfurization treatment after the dust removal, thereby reducing the overall efficiency of the blast furnace gas in the dust removal and desulfurization.

[0048] During desulfurization, the driving motor 111 drives the driving shaft 112 to rotate, the driving shaft 112 drives the first bevel gear 113 to rotate, the first bevel gear 113 drives the second bevel gear 114 to rotate, the second bevel gear 114 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the rotating disk 12 at the bottom to rotate, so that the rotating disk 12 stirs the alkali solution, and at the same time, when the rotating shaft 10 rotates, the air cylinder 151 is driven to rotate with the rotating shaft 10, and the air cylinder 151 drives the lifting rod 153 to slide in the annular slide groove 155, and the annular slide groove 155 adopts a concave-convex structure design as shown in FIG. Fig.11The annular groove 155 adopts a concave-convex structure design, so that when the lifting rod 153 slides to the concave position inside the annular groove 155, the piston plate 152 is pulled to move above the air cylinder 151 through the elastic force of the first spring 154, and the lifting rod 153 is driven to move upward, so that the top of the lifting rod 153 slides to the concave position. When the piston plate 152 moves upward, the first one-way valve 157 opens, and the gas enters the air cylinder 151 from the air intake port 156 through the air pipe 14 and the air flow channel 13. The second one-way valve 159 is closed, and the gas will not be discharged from the exhaust port 158. When the lifting rod 153 continues and slides to the convex position of the annular groove 155, the lifting rod 153 moves downward, and the piston plate 152 is driven to move downward. The piston plate 152 moves and stretches the first spring 154, so that the first spring 154 has a pulling force for subsequently pulling the piston plate 152 upward. When the piston plate 152 moves downward, the first one-way valve 157 is closed, and the gas does not enter the air flow channel 13 through the air intake port 156. The second one-way valve 159 is opened, and the gas is discharged through the exhaust port 158. Therefore, when the rotating shaft 10 rotates, the alkali solution is supplied with gas through the up and down reciprocating motion of the piston plate 152, which is beneficial to increase the kinetic energy utilization rate, facilitates the control of the oxygen concentration in the alkali solution, and has a good use effect. In addition, when the rotating shaft 10 rotates, the exhaust port 158 ​​is in a centrifugal state, which can not only prevent the alkali solution from entering, but also make the gas evenly distributed in the alkali solution.

[0049] Embodiment 2

[0050] This embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figure 1-Figure 14 A first wedge block 17 is fixed to the lower surface of the rotating disk 12, an adjusting column 18 is provided through the partition 3, a second wedge block 19 is fixed on the top of the adjusting column 18 and slides with the first wedge block 17, a plurality of groups of dust bags 6 are sleeved with a ring 20 on the outside, a connecting plate 21 is fixed between adjacent rings 20, the bottom of the adjusting column 18 is fixed to the upper surface of the connecting plate 21, a second spring 22 is sleeved on the circumference of the adjusting column 18, the two ends of the second spring 22 are respectively fixed between the lower surface of the partition 3 and the upper surface of the connecting plate 21, and a beating component 23 for beating the dust bag 6 is provided on both sides of the ring 20;

[0051] The flapping assembly 23 includes a rotating rod 231 fixedly arranged inside the dust removal box 1, a rotating rod 232 is rotatably connected to the circumference of the rotating rod 231 through a torsion spring, a fixing block 233 is hinged at the bottom of the rotating rod 232 through a pin, a flapping plate 234 is fixed to the outer surface of the fixing block 233, and a pushing rod 235 for pushing the rotating rod 232 to rotate is fixed to the outer surface of the ring 20;

[0052] In the present technical solution, when the rotating shaft 10 drives the rotating disk 12 to rotate, it also drives the first wedge block 17 to rotate. When the first wedge block 17 rotates and contacts the second wedge block 19, it continues to rotate, which will cause the inclined surfaces of the first wedge block 17 and the second wedge block 19 to conflict with each other. At this time, the second wedge block 19 moves downward, driving the adjusting column 18 to move downward. The adjusting column 18 drives the connecting plate 21 and the ring 20 to move downward, and at the same time stretches the second spring 22 so that the second spring 22 has a restoring force. The downward movement of the ring 20 drives the push rod 235 to move downward along the outer surface of the rotating rod 232, prompting the rotating rod 232 to rotate around the rotating rod 231, and at the same time makes the torsion spring accumulate force. The rotating rod 232 rotates and drives the slapping plate 234 to move toward one side of the dust bag 6 to strike the outer side of the dust bag 6.

[0053] When the rotating shaft 10 drives the rotating disk 12 to continue to rotate, the first wedge block 17 slides out of the second wedge block 19, and the first wedge block 17 and the second wedge block 19 are no longer in conflict. Due to the restoring force provided by the second spring 22, the second wedge block 19, the adjusting column 18, the connecting plate 21 and the ring 20 move upward and reset. The upward movement of the ring 20 drives the push rod 235 to move upward, and the torsion spring releases force, driving the rotating rod 232 to rotate in the opposite direction. The rotating rod 232 drives the flapping plate 234 to move away from one side of the dust bag 6;

[0054] The rotating disk 12 is driven to rotate by the rotating shaft 10, and the rotating disk 12 drives the first wedge block 17 to rotate. Under the action of the first wedge block 17, the second wedge block 19, the adjusting column 18, the ring 20 and the pushing rod 235 make up and down reciprocating motions, so that the flapping plate 234 can repeatedly flap the dust bag 6, so that when dust removal is performed, the dust filtered on the dust bag 6 can be discharged from the filter holes of the dust bag 6 to achieve the purpose of backwashing, and the dust can be prevented from clogging the filter holes of the dust bag 6 during dust removal, which is beneficial to increase the ventilation effect of the dust bag 6, and the dust removal efficiency is high and not easy to be blocked, and it is more convenient to use.

[0055] In order to further improve the effect of the up and down reciprocating motion of the ring 20, third springs 236 are provided on both sides of the second spring 22, and the third springs 236 provide a stable restoring force, so that the up and down reciprocating motion of the ring 20 is smoother;

[0056] In order to further improve the beating effect of the dust removal bag 6, a counterweight block 237 is fixed to the lower surface of the beating plate 234; the counterweight block 237 can keep the beating plate 234 in a vertical state to improve the beating effect.

[0057] Embodiment 3

[0058] When the blast furnace gas enters the dust bag 6 through the ventilation groove 5, it will impact the top of the dust bag 6, causing the dust bag 6 to form a shape with a large top and a small bottom (such as Fig. 9 ), and when the blast furnace gas impacts the top of the dust bag 6, the ventilation volume at the top of the dust bag 6 is large, which will cause the top of the dust bag 6 to filter more dust, so that the top of the dust bag 6 is more easily blocked by dust. To solve this problem, this embodiment is an improvement made on the basis of the second embodiment. For details, please refer to Figure 1-Figure 14 A guide rod 24 is fixed to the lower surface of the partition 3, and the guide rod 24 passes through the ring 20, and a plurality of arc grooves 25 are formed on the inner surface of the guide rod 24, and a protrusion 26 is fixed to the inner surface of the ring 20, and a knocking column 27 is slidably connected inside the protrusion 26, and one end of the knocking column 27 is slidably inserted into the arc groove 25, and the other end of the knocking column 27 is in contact with the outer surface of the dust bag 6, and both ends of the knocking column 27 are set as circular surface structures, and a fourth spring 28 is sleeved on the circumference of the knocking column 27, and one end of the fourth spring 28 close to the dust bag 6 is fixed to the knocking column 27;

[0059] In the present technical solution, the ring 20 is reciprocated up and down to make the ring 20 move in the vertical direction along the guide rod 24. When the ring 20 moves in the vertical direction along the guide rod 24, a plurality of groups of arc grooves 25 are opened on the guide rod 24, and one end of the knocking column 27 is abutted in one of the arc grooves 25 by using the fourth spring 28. In the process of the reciprocating lifting of the ring 20, one end of the knocking column 27 slides along the surface of the guide rod 24 and alternately enters and exits different arc grooves 25, so as to cause the knocking column 27 to perform horizontal reciprocating motion, so that the knocking column 27 knocks on the top position of the dust bag 6, thereby further reducing the possibility of blockage on the top of the dust bag 6 and greatly improving the dust removal efficiency.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated blast furnace gas dust removal and desulfurization device, comprising a dust removal box (1) and a desulfurization box (2), wherein a partition (3) is provided between the top of the dust removal box (1) and the bottom of the desulfurization box (2), characterized in that: The dust removal box (1) is provided with a mounting plate (4) inside, a ventilation groove (5) is provided on the mounting plate (4), a plurality of dust removal bags (6) are installed between the top of the ventilation groove (5) and the lower surface of the partition (3), a gas pipe (7) is provided at the top of the dust removal box (1) and is connected to one side of the desulfurization box (2), an alkali liquid stirring device is provided inside the desulfurization box (2), the alkali liquid stirring device comprises a fixed seat (8), the four sides of the fixed seat (8) are fixedly connected to the inner wall of the desulfurization box (2) through support rods (9), a rotating shaft (10) is rotatably provided in the middle position of the fixed seat (8), a driving assembly (11) is provided at the top of the rotating shaft (10), and a rotating disk (12) is fixedly provided at the bottom of the rotating shaft (10); An air flow channel (13) is provided inside the rotating shaft (10); an air pipe (14) is provided on one side of the desulfurization box (2); one end of the air pipe (14) is connected to the air flow channel (13); and the top of the rotating shaft (10) is rotatably connected to the air pipe (14); a plurality of groups of air supply components (15) are provided on the outer surface of the rotating shaft (10) and are connected to the bottom of the air flow channel (13); and the plurality of groups of air supply components (15) are rotated by the rotating shaft (10) to supply air; and an alkali solution spray component (16) is provided between the top and the outer surface of the desulfurization box (2); The driving assembly (11) comprises a driving motor (111), the driving motor (111) is fixedly mounted on the outer surface of the desulfurization box (2), the output end of the driving motor (111) is drivingly connected to a driving shaft (112), the other end of the driving shaft (112) is key-connected to a first bevel gear (113), the first bevel gear (113) is meshed with a second bevel gear (114), and the second bevel gear (114) is key-connected to the circumference of the rotating shaft (10); The air supply assembly (15) comprises an air cylinder (151) fixed to the outer surface of the rotating shaft (10), a piston plate (152) being slidably arranged in the air cylinder (151), a lifting rod (153) being fixedly arranged on the upper surface of the piston plate (152), a first spring (154) being fixedly arranged on the surface of the piston plate (152), the first spring (154) being movably sleeved on the circumference of the lifting rod (153), and the other end of the first spring (154) being fixedly arranged on the top wall of the air cylinder (151), an annular groove (155) being provided on the lower surface of the fixing seat (8), and the top of the lifting rod (153) being slidably arranged in the annular groove (155); A first wedge block (17) is fixed on the lower surface of the rotating disk (12), an adjusting column (18) is provided through the partition (3), a second wedge block (19) is fixed on the top of the adjusting column (18) and is slidably matched with the first wedge block (17), a plurality of groups of dust bags (6) are sleeved on the outer sides with a ring (20), a connecting plate (21) is fixed between adjacent rings (20), the bottom of the adjusting column (18) is fixed on the upper surface of the connecting plate (21), a second spring (22) is sleeved on the circumference of the adjusting column (18), two ends of the second spring (22) are respectively fixed between the lower surface of the partition (3) and the upper surface of the connecting plate (21), and a beating component (23) for beating the dust bag (6) is provided on both sides of the ring (20); The beating assembly (23) comprises a rotating rod (231) fixedly arranged inside the dust removal box (1); a rotating rod (232) is rotatably connected to the circumference of the rotating rod (231) via a torsion spring; a fixed block (233) is hinged at the bottom of the rotating rod (232) via a pin; a beating plate (234) is fixed to the outer surface of the fixed block (233); and a pushing rod (235) for pushing the rotating rod (232) to rotate is fixed to the outer surface of the ring (20).

2. The integrated device for dust removal and desulfurization of blast furnace gas according to claim 1, characterized in that: An air intake port (156) is provided between the bottom of the air flow channel (13) and the bottom of the air cylinder (151), a first one-way valve (157) is installed in the air intake port (156), and an air exhaust port (158) is provided on the other side of the bottom of the air cylinder (151), a second one-way valve (159) is installed in the air exhaust port (158).

3. The integrated device for dust removal and desulfurization of blast furnace gas according to claim 1 is characterized in that: A third spring (236) is provided on both sides of the second spring (22), and both ends of the third spring (236) are fixed between the lower surface of the partition (3) and the upper surface of the connecting plate (21), and a counterweight block (237) is fixed on the lower surface of the beating plate (234).

4. The integrated device for dust removal and desulfurization of blast furnace gas according to claim 3 is characterized in that: A guide rod (24) is fixed on the lower surface of the partition (3), the guide rod (24) passes through the circular ring (20), and a plurality of groups of arc grooves (25) are opened on the inner surface of the guide rod (24), a protrusion (26) is fixed on the inner surface of the circular ring (20), a knocking column (27) is slidably connected inside the protrusion (26), one end of the knocking column (27) is slidably inserted into the arc groove (25), the other end of the knocking column (27) contacts the outer surface of the dust bag (6), and both ends of the knocking column (27) are arranged as circular surface structures, a fourth spring (28) is sleeved on the circumference of the knocking column (27), and one end of the fourth spring (28) close to the dust bag (6) is fixed to the knocking column (27).

5. The integrated device for dust removal and desulfurization of blast furnace gas according to claim 1, characterized in that: The alkali solution spraying assembly (16) comprises a support plate (161) fixed on the outer surface of the desulfurization box (2), a water pump (162) is fixed on the support plate (161), the input end of the water pump (162) is connected to the interior of the desulfurization box (2), and the outer cover of the input end of the water pump (162) is provided with a filter screen cover (163), the output end of the water pump (162) is connected to a liquid infusion pipe (164), the top end of the liquid infusion pipe (164) is connected to a guide pipe (165), the guide pipe (165) is fixedly arranged on the top of the desulfurization box (2), and a plurality of groups of diversion pipes (166) are symmetrically arranged on both sides of the diversion pipe (165), and a plurality of groups of nozzles (167) are arranged on the lower surfaces of the plurality of groups of diversion pipes (166).

6. The integrated device for dust removal and desulfurization of blast furnace gas according to claim 1, characterized in that: A plurality of groups of legs (29) are fixedly arranged at the bottom of the dust removal box (1), a gas inlet (30) is arranged at one side of the dust removal box (1), and a gas outlet (31) is arranged at the top of the desulfurization box (2).

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