A tail gas desulfurization device and method based on sulfuric acid processing

Abstract

The invention discloses a tail gas desulfurization device and method based on sulfuric acid processing, relates to the technical field of sulfuric acid processing, and includes a desulfurization tower. The tail gas desulfurization device and method based on sulfuric acid processing disclosed by the invention have the following characteristics: when the tail gas desulfurization is performed, the tail gas enters the storage frame from the air holes at different positions, and the calcium carbonate accumulated in the storage frame is arranged in layers. After the tail gas enters the storage frame, it passes through the multiple layers of calcium carbonate during the rising process, so as to achieve full desulfurization of the tail gas. The radius of the storage frame increases gradually from bottom to top. Therefore, when the tail gas is introduced into the storage frame, the calcium carbonate stored at the bottom of the storage frame contacts the tail gas most frequently, and the loss of the calcium carbonate inside the storage frame gradually decreases from bottom to top. Therefore, when the calcium carbonate is replaced, the calcium carbonate at the bottom can be directly discharged, and the calcium carbonate near the middle and upper position can continue to be used, thereby reducing the loss of calcium carbonate.

Description

Technical Field

[0001] The present invention relates to the technical field of sulfuric acid processing, and in particular to a tail gas desulfurization device and method based on sulfuric acid processing. Background Art

[0002] Sulfuric acid is the most active binary inorganic strong acid and can react with most metals. High concentration of sulfuric acid has strong water absorption and can be used as a dehydrating agent to carbonize wood, paper, cotton and linen fabrics, biological skins and flesh and other carbohydrate-containing materials. When mixed with water, it will also release a lot of heat energy. It is highly corrosive and oxidizing, so it should be used with caution. It is an important industrial raw material. During the processing of sulfuric acid, the tail gas generated by its processing needs to be desulfurized to avoid environmental pollution caused by tail gas emissions.

[0003] During the use of the existing tail gas desulfurization device, if solid compounds such as calcium carbonate are used for desulfurization treatment, as the tail gas desulfurization operation proceeds, the solid compounds such as calcium carbonate will have a large loss and need to be replaced. Then, when the tail gas passes through the calcium carbonate layer, the loss of calcium carbonate at each position is different. If all of them are replaced, it will cause serious loss of calcium carbonate. At the same time, the single layer of calcium carbonate has a poor desulfurization effect when performing tail gas desulfurization treatment, and it is very easy for incomplete tail gas desulfurization to cause secondary desulfurization or even tertiary desulfurization treatment, thereby reducing the use value of the tail gas desulfurization device. Summary of the invention

[0004] The invention discloses a tail gas desulfurization device and method based on sulfuric acid processing, aiming to solve the technical problem that when solid compounds such as calcium carbonate are used for desulfurization treatment in the existing tail gas desulfurization device during use, as the tail gas desulfurization operation proceeds, the solid compounds such as calcium carbonate have a large loss and need to be replaced. Then, when the tail gas passes through the calcium carbonate layer, the loss of calcium carbonate at various positions is different. If all of them are replaced, the loss of calcium carbonate will be serious. At the same time, the desulfurization effect of a single layer of calcium carbonate is poor when the tail gas desulfurization treatment is carried out.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tail gas desulfurization device based on sulfuric acid processing comprises a desulfurization tower, wherein the desulfurization tower is located in the middle and is fixedly connected to a fitting reinforcement frame inside, and the inner wall of the fitting reinforcement frame is fixedly connected to a material storage frame, and the material storage frame is provided with air holes at two-thirds from bottom to top, the material storage frame is in the shape of an inverted frustum, and a material discharge module is provided below the material storage frame, and a feeder is provided above the material storage frame, a grounding seat is distributed in an annular manner at the bottom of the material storage frame, and an air inlet hole is provided on the outer side of the material storage frame near the bottom, an air inlet pipe is fixedly connected to the inside of the air inlet hole, and an air inlet valve is connected to the outer side of the air inlet pipe via a flange.

[0007] A material storage frame is provided, which is an inverted frustum structure with air holes at the bottom. When exhaust gas desulfurization is carried out, the exhaust gas enters the material storage frame from the air holes at different positions, and the calcium carbonate accumulated in the material storage frame is arranged in layers. After the exhaust gas enters the material storage frame, it passes through multiple layers of calcium carbonate during its rising process, thereby achieving full desulfurization of the exhaust gas. The radius of the material storage frame increases gradually from bottom to top. Therefore, after the exhaust gas is introduced into the material storage frame, the calcium carbonate stored at the bottom of the material storage frame contacts the exhaust gas most frequently, and the loss of calcium carbonate inside the material storage frame gradually decreases from bottom to top. Therefore, when replacing calcium carbonate, the calcium carbonate at the bottom can be directly discharged, and the calcium carbonate near the upper middle position can continue to be used, thereby reducing the loss of calcium carbonate and improving the use value of the exhaust gas desulfurization device.

[0008] In a preferred embodiment, the feeder includes a hollow feeding column, and a mounting hole is opened on the top of the desulfurization tower, the hollow feeding column is connected to the inside of the mounting hole through a bearing, a filling hole is opened on the side wall of the hollow feeding column near the bottom end, a material receiving frame is fixedly connected to the inside of the filling hole, the bottom of the material receiving frame is connected to a deflection discharge frame through a hinge, one side of the material receiving frame is fixedly connected to a bottom plate, the side of the bottom plate facing the deflection discharge frame is connected to a hydraulic cylinder 1 through a hinge, the output end of the hydraulic cylinder 1 is connected to the bottom of the deflection discharge frame through a hinge, and the top of the hollow feeding column is fixedly connected to a feed hopper.

[0009] By providing a feeder, when the calcium carbonate at the bottom is removed, the calcium carbonate at the top falls into the lower position. If the calcium carbonate at the top needs to be filled, the calcium carbonate is added to the hollow feeding column, and the driving motor 1 is started. The driving motor 1 drives the hollow feeding column to rotate. During the rotation, the angle of the deflection feeding frame is adjusted by adjusting the hydraulic cylinder 1, thereby realizing the filling of calcium carbonate at different positions inside the storage frame, ensuring that the filled calcium carbonate is evenly distributed inside the storage frame.

[0010] In a preferred embodiment, a driving motor 1 is fixedly connected to the inner wall of the top of the desulfurization tower, and the output shaft of the driving motor 1 is fixedly connected to the driving shaft 1 through a coupling, the outer side of the driving shaft 1 is fixedly connected to a driving gear disc, and the outer side of the hollow feeding column located at the driving gear disc is fixedly connected to a driven gear disc, and the driving gear disc and the driven gear disc are meshed.

[0011] In a preferred embodiment, the bottom of the hollow feeding column is provided with an embedded stirring member, and the embedded stirring member includes an extension column, which is fixedly connected to the bottom of the hollow feeding column, and the extension column is located inside the material storage frame. The bottom of the extension column is fixedly connected to an intermediate suspension rod, and the extension column is located at the periphery of the intermediate suspension rod and is connected to multiple stirring rods through hinges. The side wall of each stirring rod facing the intermediate suspension rod is fixedly connected to a connecting spring rod, and one end of the connecting spring rod is fixedly connected to the side wall of the intermediate suspension rod.

[0012] By providing an embedded stirring member, when replacing calcium carbonate, the driving motor drives each stirring rod to stir in the storage frame. During the rotation of the stirring rod, the interaction force between the stirring rod and the calcium carbonate squeezes the connecting spring rod, thereby realizing the position adjustment of the stirring rod, increasing the stirring range of the stirring rod, and preventing calcium carbonate from accumulating and agglomerating in the storage frame.

[0013] In a preferred embodiment, a material changing auxiliary part is provided on the outer side of the hollow feeding column, and the material changing auxiliary part includes a mounting ring, which is fixedly connected to the outer side of the hollow feeding column, and connecting rods are distributed in a ring on the top of the mounting ring, and each connecting rod is fixedly connected to an integration block on the side away from the mounting ring, and a hydraulic cylinder 2 is fixedly connected to the side of the integration block facing downward at an equal distance, and the output ends of multiple hydraulic cylinders 2 located on the same integration block are fixedly connected to the same arc plate for pressing and unloading.

[0014] By providing a material replacement auxiliary part, when replacing calcium carbonate, the input of exhaust gas is stopped, and the second driving motor is started to drive the blocking plate to separate from the bottom of the material storage frame, and the second hydraulic cylinder is adjusted to drive the pressing arc plate to press downward, and the first driving motor drives each pressing arc plate to rotate the calcium carbonate located above, thereby realizing the rotation and downward pressure of the calcium carbonate at the upper end of the material storage frame, and gradually exporting the severely depleted calcium carbonate located at the bottom, so as to quickly realize the replacement of calcium carbonate.

[0015] In a preferred solution, the unloading module includes a transfer cover, and a motor frame is fixedly connected to the side of the reinforcement frame facing downward, and a driving motor 2 is fixedly connected to the bottom of the motor frame, and the output shaft of the driving motor 2 is fixedly connected to the driving shaft 2 through a coupling, and a follower rotating rod is fixedly connected to the outer side of the driving shaft 2, and a blocking plate is fixedly connected to one side of the follower rotating rod, and the blocking plate is in contact with the bottom of the material storage frame, and an intermediate guide cone is fixedly connected to the bottom inner wall of the transfer cover, and a discharge hole is opened at the outer side of the intermediate guide cone of the transfer cover, and the inside of the two discharge holes are fixedly connected with a discharge channel, and a fixed hole is opened at the discharge channel of the desulfurization tower, and the discharge channel is fixedly connected to the inside of the fixed hole.

[0016] By setting up a feeding module, during the replacement of calcium carbonate, the second driving motor drives the blocking plate to separate from the bottom of the storage frame, and the calcium carbonate falls into the transfer cover under the push of the feeding arc plate. After falling into the transfer cover, the calcium carbonate falls into two discharge channels under the guidance of the middle guide cone and is gradually discharged from the desulfurization tower. The staff collects it, which improves the convenience of calcium carbonate replacement.

[0017] In a preferred solution, a gas-solid separation component is provided inside the bottom end of the desulfurization tower, and the gas-solid separation component includes a bottom column, which is fixedly connected to the bottom inner wall of the desulfurization tower, and the side wall of the bottom column located in the middle is fixedly connected to a guide cover, the bottom inner wall of the desulfurization tower is fixedly connected to an annular pumping plate, and the side wall of the annular pumping plate facing the guide cover is provided with a pump hole in an annular shape, the side wall of the desulfurization tower is fixedly connected to a pump frame, the top of the pump frame is fixedly connected to an adsorption pump, the adsorption end of the adsorption pump is fixedly connected to an exhaust pipe, and the exhaust pipe is inserted into the inside of the annular pumping plate.

[0018] By setting up a gas-solid separation component, after the exhaust gas is introduced into the desulfurization tower, the exhaust gas impacts the filter, and the exhaust gas enters the desulfurization chamber through the filter. The particulate impurities carried by the exhaust gas fall on the guide cover below, and then fall into the annular pumping plate, and the adsorption pump is started to extract the particulate impurities. At the same time, the impact of the exhaust gas drives the sliding block to move in the sliding groove, the follower spring rod is compressed, and the upper vibration ball knocks on the filter at the same time. The filter is in an oscillating state, and the particulate impurities cannot be successfully retained in the filter holes on the filter, ensuring that the exhaust gas can pass smoothly.

[0019] In a preferred solution, a sliding groove is provided in an annular shape at the top of the base column, and a sliding block is slidably connected to the inside of each sliding groove, a docking rod is fixedly connected to the top of each sliding block, a follow-up spring rod is fixedly connected to the top of each docking rod, a plurality of follow-up spring rods are fixedly connected to the same mounting plate at the top, the mounting plate is fixedly connected to the side wall of the base column near the top, a plurality of sliding blocks are fixedly connected to the same filter screen at the outer sides, an inner connecting ring plate is fixedly connected to the inner side wall of the desulfurization tower above the filter screen, elastic rods are distributed in an annular shape at the bottom of the inner connecting ring plate, and a shock ball is provided at the bottom of each elastic rod, and the shock ball is in contact with the upper surface of the filter screen.

[0020] In a preferred solution, two drain holes are provided on the top of the desulfurization tower, and a detection box is fixedly connected to the inside of the two drain holes, a mounting frame is fixedly connected to the inside of the detection box, a gas detector is fixedly connected to the mounting frame, a circulation hole is provided on one side of the detection box below the gas detector, a circulation pipe is fixedly connected to the inside of the circulation hole, one end of the circulation pipe is inserted into the inside of the desulfurization tower below the discharge channel, a circulation valve is connected to the outside of the circulation pipe near the detection box through a flange, a connecting hole is provided on the top of the detection box, a drain pipe is fixedly connected to the inside of the connecting hole, and a drain valve is connected to the outside of the drain pipe through a flange.

[0021] A method for using a tail gas desulfurization device based on sulfuric acid processing, using the tail gas desulfurization device based on sulfuric acid processing as described above, the method for using comprises the following steps:

[0022] Step 1: After the exhaust gas enters the desulfurization tower, it impacts the filter screen, and then enters the desulfurization chamber through the filter screen. The particulate impurities carried by the exhaust gas fall on the guide cover below, and then fall into the annular pumping plate. The adsorption pump is started to extract the particulate impurities.

[0023] Step 2: After the tail gas enters the desulfurization chamber, it continues to rise to the storage frame. The tail gas enters the storage frame from the air holes at different positions. The calcium carbonate accumulated in the storage frame is arranged in layers. After the tail gas enters the storage frame, it passes through multiple layers of calcium carbonate during its rise. After passing through the calcium carbonate layer of the storage frame, the tail gas enters the detection box, and the gas detector detects it. If the detection is up to standard, the exhaust valve is opened and the desulfurized tail gas is discharged. If the detection is not up to standard, the circulation valve is opened, and the tail gas re-enters the desulfurization chamber through the circulation pipe for secondary desulfurization treatment;

[0024] Step 3: After the calcium carbonate inside the storage frame has been used for a period of time, start the second drive motor to drive the blocking plate to separate from the bottom of the storage frame, adjust the second hydraulic cylinder to drive the pressing arc plate to press down, and drive the first drive motor to drive each pressing arc plate to rotate the calcium carbonate located above, thereby realizing the rotation and downward pressure of the calcium carbonate at the upper end of the storage frame, and gradually exporting the severely damaged calcium carbonate located below, and the exported calcium carbonate falls into the transfer cover. After falling into the transfer cover, the calcium carbonate falls into two discharge channels under the guidance of the middle guide cone, and is gradually discharged from the desulfurization tower. The staff collects it, and after the calcium carbonate located below is discharged, the calcium carbonate is added to the hollow feeding column, and the first drive motor is started. The first drive motor drives the hollow feeding column to rotate. During the rotation, the angle of the deflection feeding frame is adjusted by adjusting the first hydraulic cylinder, thereby realizing the filling of calcium carbonate at different positions inside the storage frame, and then the desulfurization treatment of the exhaust gas is restarted.

[0025] Beneficial effects: 1. The material storage frame is an inverted truncated cone structure with air holes at the bottom. When the tail gas is desulfurized, the tail gas enters the material storage frame from the air holes at different positions. The calcium carbonate accumulated in the material storage frame is arranged in layers. After the tail gas enters the material storage frame, it passes through multiple layers of calcium carbonate during its rise, thereby achieving full desulfurization of the tail gas. The radius of the material storage frame increases gradually from bottom to top. Therefore, when the tail gas is introduced into the material storage frame, the calcium carbonate stored at the bottom of the material storage frame contacts the tail gas most frequently, and the loss of calcium carbonate inside the material storage frame gradually decreases from bottom to top. Therefore, when replacing calcium carbonate, the calcium carbonate at the bottom can be directly discharged, and the calcium carbonate near the upper middle position can continue to be used, thereby reducing the loss of calcium carbonate and improving the use value of the tail gas desulfurization device;

[0026] 2. By providing an embedded stirring member, when replacing calcium carbonate, the driving motor drives each stirring rod to stir in the storage frame. During the rotation of the stirring rod, the interaction force between the stirring rod and the calcium carbonate squeezes the connecting spring rod, thereby adjusting the position of the stirring rod, increasing the stirring range of the stirring rod, and preventing calcium carbonate from accumulating and agglomerating in the storage frame;

[0027] 3. By setting up a material discharge module, during the replacement of calcium carbonate, the second driving motor drives the blocking plate to separate from the bottom of the storage frame, and the calcium carbonate falls into the transfer cover under the push of the material discharge arc plate. After falling into the transfer cover, the calcium carbonate falls into two discharge channels under the guidance of the middle guide cone and is gradually discharged from the desulfurization tower. The staff collects it, which improves the convenience of calcium carbonate replacement;

[0028] 4. By setting up a gas-solid separation component, after the exhaust gas is introduced into the desulfurization tower, the exhaust gas impacts the filter, and the exhaust gas enters the desulfurization chamber through the filter. The particulate impurities carried by the exhaust gas fall on the guide cover below, and then fall into the annular pumping plate. The adsorption pump is started, and the adsorption pump extracts the particulate impurities. At the same time, the impact of the exhaust gas drives the sliding block to move in the sliding groove, the follower spring rod is compressed, and the upper vibration ball knocks on the filter at the same time. The filter is in an oscillating state, and the particulate impurities cannot be smoothly retained in the filter holes on the filter, ensuring that the exhaust gas can pass smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0030] Figure 2 This is a top view of the overall structure of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0031] Figure 3 This is a schematic diagram of the combined structure of a discharge channel and a storage frame of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0032] Figure 4 The present invention provides a schematic diagram of the combined structure of a feeder and a material replacement auxiliary component for a tail gas desulfurization device based on sulfuric acid processing.

[0033] Figure 5 The present invention provides a schematic diagram of a feeder structure for a tail gas desulfurization device based on sulfuric acid processing.

[0034] Figure 6 This is a schematic diagram of the structure of an embedded stirring element of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0035] Figure 7This is a schematic diagram of the structure of a material replacement auxiliary component of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0036] Figure 8 This is a schematic diagram of the structure of a material discharge module of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0037] Fig. 9 This is a schematic diagram of the structure of a gas-solid separation component of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0038] Fig.10 This is an enlarged view of the bottom column structure of a tail gas desulfurization device based on sulfuric acid processing proposed by the present invention.

[0039] Fig.11 The present invention provides a detection box for a tail gas desulfurization device based on sulfuric acid processing and a schematic diagram of its internal structure.

[0040] In the figure: 1. desulfurization tower; 2. feed hopper; 3. detection box; 4. adsorption pump; 5. pump rack; 6. grounding seat; 7. air intake valve; 8. air intake pipe; 9. discharge channel; 10. circulation pipe; 11. storage frame; 12. feeder; 1201. hollow feeding column; 1202. drive motor 1; 1203. drive shaft 1; 1204. driving gear disc; 1205. driven gear disc; 1206 , negative film; 1207, hydraulic cylinder 1; 1208, deflection feeding frame; 1209, feeding frame; 13, material changing auxiliary parts; 1301, pressing feeding arc plate; 1302, connecting rod; 1303, integration block; 1304, mounting ring; 1305, hydraulic cylinder 2; 14, fitting reinforcement frame; 15, embedded stirring element; 1501, stirring rod; 1502, connecting spring rod; 1503, Middle suspension rod; 1504, extension column; 16, air hole; 17, unloading module; 1701, middle guide cone; 1702, transfer cover; 1703, follow-up rotating rod; 1704, drive motor 2; 1705, motor frame; 1706, drive shaft 2; 1707, blocking plate; 18, exhaust pipe; 19, gas-solid separation component; 1901, filter screen; 1902, inner ring plate; 190 3. Extraction hole; 1904. Air deflector; 1905. Annular extraction plate; 1906. Oscillation ball; 1907. Elastic rod; 1908. Mounting plate; 1909. Follow-up spring rod; 1910. Docking rod; 1911. Sliding block; 1912. Sliding groove; 1913. Bottom column; 20. Circulation valve; 21. Mounting frame; 22. Drain pipe; 23. Drain valve; 24. Gas detector. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] The invention discloses a tail gas desulfurization device and method based on sulfuric acid processing, which are mainly applied to the existing tail gas desulfurization device during use. If solid compounds such as calcium carbonate are used for desulfurization treatment, as the tail gas desulfurization operation proceeds, solid compounds such as calcium carbonate will suffer great loss and need to be replaced. Then, when the tail gas passes through the calcium carbonate layer, the loss of calcium carbonate at various positions is different. If all of them are replaced, the loss of calcium carbonate will be serious. At the same time, the desulfurization effect of a single layer of calcium carbonate is poor during tail gas desulfurization treatment.

[0043] Reference Figure 1-Figure 11 A tail gas desulfurization device based on sulfuric acid processing includes a desulfurization tower 1, wherein the desulfurization tower 1 is fixedly connected to a fitting reinforcement frame 14 in the middle thereof, and a material storage frame 11 is fixedly connected to the inner wall of the fitting reinforcement frame 14, and air holes 16 are opened at two-thirds of the material storage frame 11 from bottom to top, the material storage frame 11 is in an inverted frustum shape, and a material discharge module 17 is arranged below the material storage frame 11, and a feeder 12 is arranged above the material storage frame 11, and a grounding seat 6 is distributed in an annular manner at the bottom of the material storage frame 11, and an air inlet hole is opened on the outer side of the material storage frame 11 near the bottom, an air inlet pipe 8 is fixedly connected to the inside of the air inlet hole, and an air inlet valve 7 is connected to the outer side of the air inlet pipe 8 through a flange.

[0044] In a specific application scenario, the storage frame 11 is an inverted frustum structure with an air hole 16 at the bottom. When exhaust gas desulfurization is performed, the exhaust gas enters the storage frame 11 from the air holes 16 at different positions, and the calcium carbonate accumulated in the storage frame 11 is arranged in layers. After the exhaust gas enters the storage frame 11, it passes through multiple layers of calcium carbonate during its upward process, thereby achieving full desulfurization of the exhaust gas. The radius of the storage frame 11 gradually increases from bottom to top. Therefore, when the exhaust gas is introduced into the storage frame, the calcium carbonate stored at the bottom of the storage frame is in most frequent contact with the exhaust gas, and the loss of calcium carbonate inside the storage frame gradually decreases from bottom to top. Therefore, when replacing the calcium carbonate, the calcium carbonate at the bottom can be directly discharged, and the calcium carbonate near the upper middle position can continue to be used, reducing the loss of calcium carbonate.

[0045] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5In a preferred embodiment, the feeder 12 includes a hollow feeding column 1201, and a mounting hole is provided at the top of the desulfurization tower 1, the hollow feeding column 1201 is connected to the inside of the mounting hole through a bearing, a filling hole is provided on the side wall of the hollow feeding column 1201 near the bottom end, a material receiving frame 1209 is fixedly connected to the inside of the filling hole, a deflection discharge frame 1208 is connected to the bottom of the material receiving frame 1209 through a hinge, a bottom plate 1206 is fixedly connected to one side of the material receiving frame 1209, and a hydraulic cylinder 1207 is connected to the side of the bottom plate 1206 facing the deflection discharge frame 1208 through a hinge, The output end of the hydraulic cylinder 1207 is connected to the bottom of the deflection discharge frame 1208 through a hinge, the top of the hollow feeding column 1201 is fixedly connected to the feed hopper 2, the top inner wall of the desulfurization tower 1 is fixedly connected to the driving motor 1202, and the output shaft of the driving motor 1202 is fixedly connected to the driving shaft 1203 through a coupling, the outer side of the driving shaft 1203 is fixedly connected to the driving gear disc 1204, and the outer side of the hollow feeding column 1201 located at the driving gear disc 1204 is fixedly connected to the driven gear disc 1205, and the driving gear disc 1204 and the driven gear disc 1205 are meshed with each other.

[0046] In a specific application scenario, when the calcium carbonate at the bottom is removed, the calcium carbonate at the top falls into the lower position. If the calcium carbonate at the top needs to be filled, the calcium carbonate is added to the hollow feeding column 1201, and the drive motor 1202 is started. The drive motor 1202 drives the hollow feeding column 1201 to rotate. During the rotation, the deflection discharge frame 1208 is driven to adjust the angle by adjusting the hydraulic cylinder 1207, thereby realizing the filling of calcium carbonate at different positions inside the storage frame 11, ensuring that the filled calcium carbonate is evenly distributed inside the storage frame 11.

[0047] Reference Figure 1 , Figure 3 and Figure 6 In a preferred embodiment, an embedded stirring element 15 is provided at the bottom of the hollow feeding column 1201, and the embedded stirring element 15 includes an extension column 1504, which is fixedly connected to the bottom of the hollow feeding column 1201, and the extension column 1504 is located inside the material storage frame 11. The bottom of the extension column 1504 is fixedly connected to an intermediate suspension rod 1503, and the extension column 1504 is located at the periphery of the intermediate suspension rod 1503 and is connected to multiple stirring rods 1501 through hinges. The side wall of each stirring rod 1501 facing the intermediate suspension rod 1503 is fixedly connected to a connecting spring rod 1502, and one end of the connecting spring rod 1502 is fixedly connected to the side wall of the intermediate suspension rod 1503.

[0048] Specifically, when replacing calcium carbonate, the driving motor 1202 drives each stirring rod 1501 to stir in the storage frame 11. During the rotation of the stirring rod 1501, the interaction force between the stirring rod 1501 and the calcium carbonate squeezes the connecting spring rod 1502, thereby adjusting the position of the stirring rod 1501, increasing the stirring range of the stirring rod 1501, and preventing calcium carbonate from accumulating and agglomerating in the storage frame.

[0049] Reference Figure 1 , Figure 3 , Figure 4 and Figure 7 In a preferred embodiment, a material changing auxiliary part 13 is provided on the outer side of the hollow feeding column 1201, and the material changing auxiliary part 13 includes a mounting ring 1304, the mounting ring 1304 is fixedly connected to the outer side of the hollow feeding column 1201, and connecting rods 1302 are distributed in a ring on the top of the mounting ring 1304, and each connecting rod 1302 is fixedly connected to an integration block 1303 on the side away from the mounting ring 1304, and a hydraulic cylinder 2 1305 is fixedly connected to the side of the integration block 1303 facing downward at an equal distance, and the output ends of multiple hydraulic cylinders 2 1305 located on the same integration block 1303 are fixedly connected to the same arc plate 1301 for pressing and unloading.

[0050] Specifically, when replacing calcium carbonate, stop the input of exhaust gas, start the driving motor 2 1704 to drive the blocking plate 1707 to separate from the bottom of the storage frame, adjust the hydraulic cylinder 2 1305 to drive the pressing arc plate 1301 to press down, and drive the motor 1 1202 to drive each pressing arc plate 1301 to rotate the calcium carbonate located above, thereby realizing the rotation and downward pressure of the calcium carbonate at the upper end of the storage frame, and gradually exporting the severely damaged calcium carbonate located at the bottom, thereby quickly realizing the replacement of calcium carbonate.

[0051] Reference Figure 1 , Figure 3 , Figure 8 and Fig. 9 In a preferred embodiment, the unloading module 17 includes a transfer cover 1702, and a motor frame 1705 is fixedly connected to the side of the reinforcement frame 14 facing downward, and the bottom of the motor frame 1705 is fixedly connected to a drive motor 2 1704, and the output shaft of the drive motor 2 1704 is fixedly connected to a drive shaft 2 1706 through a coupling, and the outer side of the drive shaft 2 1706 is fixedly connected to a follower rotating rod 1703, and one side of the follower rotating rod 1703 is fixedly connected to a blocking plate 1707, and the blocking plate 1707 is in contact with the bottom of the material storage frame 11, and the bottom inner wall of the transfer cover 1702 is fixedly connected to an intermediate guide cone 1701, and the transfer cover 1702 is provided with a discharge hole at the outer side of the intermediate guide cone 1701, and the inside of the two discharge holes are fixedly connected to a discharge channel 9, and the desulfurization tower 1 is provided with a fixed hole at the discharge channel 9, and the discharge channel 9 is fixedly connected to the inside of the fixed hole.

[0052] It should be noted that during the replacement of calcium carbonate, the driving motor 1704 drives the blocking plate 1707 to separate from the bottom of the storage frame 11, and the calcium carbonate falls into the transfer cover 1702 under the push of the unloading arc plate 1301. After falling into the transfer cover 1702, the calcium carbonate falls into the two discharge channels 9 under the guidance of the middle guide cone 1701, and is gradually discharged from the desulfurization tower 1. The staff collects it to improve the convenience of calcium carbonate replacement.

[0053] Reference Figure 1 , Figure 2 , Fig. 9 and Fig.10 In a preferred embodiment, a gas-solid separation component 19 is provided inside the bottom end of the desulfurization tower 1, and the gas-solid separation component 19 includes a bottom column 1913, the bottom column 1913 is fixedly connected to the bottom inner wall of the desulfurization tower 1, the side wall of the bottom column 1913 located in the middle is fixedly connected to a guide cover 1904, the bottom inner wall of the desulfurization tower 1 is fixedly connected to an annular pumping plate 1905, and the side wall of the annular pumping plate 1905 facing the guide cover 1904 is annularly opened with a withdrawal hole 1903, the side wall of the desulfurization tower 1 is fixedly connected to a pump rack 5, the top of the pump rack 5 is fixedly connected to an adsorption pump 4, the adsorption end of the adsorption pump 4 is fixedly connected to an exhaust pipe 18, the exhaust pipe 18 is plugged into the inside of the annular pumping plate 1905, the top of the bottom column 1913 is annularly opened with a sliding groove 1912, and each sliding groove 191 2 are all slidably connected with sliding blocks 1911 inside, and the top of each sliding block 1911 is fixedly connected with a docking rod 1910, and the top of each docking rod 1910 is fixedly connected with a follower spring rod 1909, and the tops of multiple follower spring rods 1909 are fixedly connected with the same mounting plate 1908, and the mounting plate 1908 is fixedly connected to the side wall of the bottom column 1913 near the top, and the outer sides of multiple sliding blocks 1911 are fixedly connected with the same filter 1901, and the inner side wall of the desulfurization tower 1 located above the filter 1901 is fixedly connected with an inner ring plate 1902, and the bottom of the inner ring plate 1902 is annularly distributed with elastic rods 1907, and the bottom of each elastic rod 1907 is provided with an oscillation ball 1906, and the oscillation ball 1906 is in contact with the upper surface of the filter 1901.

[0054] Specifically, after the exhaust gas is introduced into the desulfurization tower 1, the exhaust gas impacts the filter 1901, and the exhaust gas enters the desulfurization chamber through the filter 1901. The particulate impurities carried by the exhaust gas fall on the guide cover 1904 below, and then fall into the annular pumping plate 1905, and the adsorption pump 4 is started. The adsorption pump 4 extracts the particulate impurities. At the same time, the impact of the exhaust gas drives the sliding block 1911 to move in the sliding groove 1912, and the follower spring rod 1909 is compressed. The upper oscillation ball 1906 knocks on the filter 1901 at the same time. The filter 1901 is in an oscillating state, and the particulate impurities cannot be smoothly retained in the filter holes on the filter 1901, ensuring that the exhaust gas can pass smoothly.

[0055] Reference Figure 1 , Figure 2 and Fig.11 In a preferred embodiment, two emptying holes are opened on the top of the desulfurization tower 1, and the inside of the two emptying holes are fixedly connected with a detection box 3, the inside of the detection box 3 is fixedly connected with a mounting frame 21, and the mounting frame 21 is fixedly connected with a gas detector 24. A circulation hole is opened on one side of the detection box 3 below the gas detector 24, and a circulation pipe 10 is fixedly connected to the inside of the circulation hole. One end of the circulation pipe 10 is inserted into the inside of the desulfurization tower 1 below the discharge channel 9, and the circulation pipe 10 is flange-connected to a circulation valve 20 near the outside of the detection box 3. A connecting hole is opened on the top of the detection box 3, and an emptying pipe 22 is fixedly connected to the inside of the connecting hole, and an emptying valve 23 is flange-connected to the outside of the emptying pipe 22.

[0056] A method for using a tail gas desulfurization device based on sulfuric acid processing, using the tail gas desulfurization device based on sulfuric acid processing as described above, the method for using comprises the following steps:

[0057] Step 1: After the tail gas enters the desulfurization tower 1, the tail gas impacts the filter 1901, and the tail gas enters the desulfurization chamber through the filter 1901. The particulate impurities carried by the tail gas fall on the guide cover 1904 below, and then fall into the annular pumping plate 1905, and the adsorption pump 4 is started to extract the particulate impurities;

[0058] Step 2: After the tail gas enters the desulfurization chamber, it continues to rise to the storage frame 11. The tail gas enters the storage frame 11 from the air holes 16 at different positions. The calcium carbonate accumulated in the storage frame 11 is arranged in layers. After the tail gas enters the storage frame 11, it passes through multiple layers of calcium carbonate during its rise. After it passes through the calcium carbonate layer of the storage frame, the tail gas enters the detection box 3, and the gas detector 24 detects it. If the detection is up to standard, the exhaust valve 23 is opened, and the desulfurized tail gas is discharged. If the detection is not up to standard, the circulation valve 20 is opened, and the tail gas re-enters the desulfurization chamber through the circulation pipe 10 for secondary desulfurization treatment;

[0059] Step 3: After the calcium carbonate in the storage frame 11 has been used for a period of time, the drive motor 2 1704 is started to drive the blocking plate 1707 to separate from the bottom of the storage frame, and the hydraulic cylinder 2 1305 is adjusted to drive the pressing arc plate 1301 to press down. The drive motor 1 1202 drives each pressing arc plate 1301 to rotate the calcium carbonate located above, thereby realizing the rotation and downward pressure of the calcium carbonate at the upper end of the storage frame, and gradually leading out the severely damaged calcium carbonate at the lower end, and the led out calcium carbonate falls into the transfer cover 1702. The calcium carbonate that falls into the transfer cover 1702 is Under the guidance of the middle guide cone 1701, it falls into the two discharge channels 9 and is gradually discharged from the desulfurization tower 1. The staff collects it. After the calcium carbonate at the bottom is discharged, the calcium carbonate is added to the hollow feeding column 1201, and the drive motor 1202 is started. The drive motor 1202 drives the hollow feeding column 1201 to rotate. During the rotation, the angle of the deflection discharge frame 1208 is adjusted by adjusting the hydraulic cylinder 1207, so as to realize the filling of calcium carbonate at different positions inside the storage frame 11, and then restart the desulfurization treatment of the tail gas. The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention shall make equivalent replacement or changes according to the technical scheme and inventive concept of the present invention, which shall be covered within the protection scope of the present invention.

Claims

1. A tail gas desulfurization device based on sulfuric acid processing, comprising a desulfurization tower (1), characterized in that: The desulfurization tower (1) is fixedly connected to a fitting reinforcement frame (14) in the middle, and the inner side wall of the fitting reinforcement frame (14) is fixedly connected to a material storage frame (11), and the material storage frame (11) is provided with air holes (16) at two-thirds of the bottom to the top. The material storage frame (11) is in the shape of an inverted truncated cone, and a material discharge module (17) is provided below the material storage frame (11), and a feeder (12) is provided above the material storage frame (11). A grounding seat (6) is distributed in an annular manner at the bottom of the material storage frame (11), and an air inlet hole is provided on the outer side of the material storage frame (11) near the bottom, and an air inlet pipe (8) is fixedly connected to the inside of the air inlet hole, and an air inlet valve (7) is connected to the outer side of the air inlet pipe (8) via a flange; The feeder (12) comprises a hollow feeding column (1201), and a mounting hole is formed at the top of the desulfurization tower (1), the hollow feeding column (1201) is connected to the inside of the mounting hole via a bearing, a filling hole is formed at the side wall of the hollow feeding column (1201) near the bottom, a material receiving frame (1209) is fixedly connected to the inside of the filling hole, the bottom of the material receiving frame (1209) is connected to a deflection material discharge frame (1208) via a hinge, a bottom plate (1206) is fixedly connected to one side of the material receiving frame (1209), a side of the bottom plate (1206) facing the deflection material discharge frame (1208) is connected to a hydraulic cylinder 1 (1207) via a hinge, an output end of the hydraulic cylinder 1 (1207) is connected to the bottom of the deflection material discharge frame (1208) via a hinge, and a feed hopper (2) is fixedly connected to the top of the hollow feeding column (1201); The top inner wall of the desulfurization tower (1) is fixedly connected to a driving motor 1 (1202), and the output shaft of the driving motor 1 (1202) is fixedly connected to a driving shaft 1 (1203) via a coupling, the outer side of the driving shaft 1 (1203) is fixedly connected to a driving gear disc (1204), and the outer side of the hollow feeding column (1201) located at the driving gear disc (1204) is fixedly connected to a driven gear disc (1205), and the driving gear disc (1204) and the driven gear disc (1205) are meshed; The bottom of the hollow feeding column (1201) is provided with an embedded stirring member (15), and the embedded stirring member (15) includes an extension column (1504), the extension column (1504) is fixedly connected to the bottom of the hollow feeding column (1201), the extension column (1504) is located inside the material storage frame (11), the bottom of the extension column (1504) is fixedly connected to an intermediate suspension rod (1503), the extension column (1504) is located at the periphery of the intermediate suspension rod (1503) and is connected to a plurality of stirring rods (1501) through hinges, and the side wall of each stirring rod (1501) facing the intermediate suspension rod (1503) is fixedly connected to a connecting spring rod (1502), and one end of the connecting spring rod (1502) is fixedly connected to the side wall of the intermediate suspension rod (1503); The outer side of the hollow feeding column (1201) is provided with a material changing auxiliary part (13), and the material changing auxiliary part (13) includes a mounting ring (1304), the mounting ring (1304) is fixedly connected to the outer side of the hollow feeding column (1201), and the top of the mounting ring (1304) is provided with connecting rods (1302) in a circular shape, and each connecting rod (1302) is fixedly connected to an integration block (1303) on a side away from the mounting ring (1304), and a hydraulic cylinder 2 (1305) is fixedly connected to a side of the integration block (1303) facing downward at an equal distance, and the output ends of multiple hydraulic cylinders 2 (1305) located on the same integration block (1303) are fixedly connected to the same arc plate (1301) for pressing and unloading; The unloading module (17) includes a central rotating cover (1702), and a motor frame (1705) is fixedly connected to the side of the bonding reinforcement frame (14) facing downward, and a second driving motor (1704) is fixedly connected to the bottom of the motor frame (1705), and the output shaft of the second driving motor (1704) is fixedly connected to the second driving shaft (1706) through a coupling, and a follower rotating rod (1703) is fixedly connected to the outer side of the second driving shaft (1706), and one side of the follower rotating rod (1703) A blocking plate (1707) is fixedly connected thereto, the blocking plate (1707) contacts the bottom of the material storage frame (11), an intermediate guide cone (1701) is fixedly connected to the bottom inner wall of the transfer cover (1702), a discharge hole is opened on the outer side of the intermediate guide cone (1701) of the transfer cover (1702), the insides of the two discharge holes are fixedly connected to a discharge channel (9), and a fixed hole is opened on the desulfurization tower (1) at the discharge channel (9), and the discharge channel (9) is fixedly connected to the inside of the fixed hole.

2. A tail gas desulfurization device based on sulfuric acid processing according to claim 1, characterized in that: The desulfurization tower (1) is provided with a gas-solid separation component (19) at the bottom end thereof, and the gas-solid separation component (19) comprises a bottom column (1913), the bottom column (1913) is fixedly connected to the bottom inner wall of the desulfurization tower (1), the middle side wall of the bottom column (1913) is fixedly connected to a guide cover (1904), the bottom inner wall of the desulfurization tower (1) is fixedly connected to an annular pumping plate (1905), the annular pumping plate (1905) is provided with a pumping hole (1903) in an annular manner on the side wall facing the guide cover (1904), the side wall of the desulfurization tower (1) is fixedly connected to a pump frame (5), the top of the pump frame (5) is fixedly connected to an adsorption pump (4), the adsorption end of the adsorption pump (4) is fixedly connected to an exhaust pipe (18), and the exhaust pipe (18) is plugged into the inside of the annular pumping plate (1905).

3. A tail gas desulfurization device based on sulfuric acid processing according to claim 2, characterized in that: The top of the bottom column (1913) is provided with a sliding groove (1912) in an annular shape, and each sliding groove (1912) is slidably connected to a sliding block (1911), the top of each sliding block (1911) is fixedly connected to a docking rod (1910), the top of each docking rod (1910) is fixedly connected to a follower spring rod (1909), the tops of the plurality of follower spring rods (1909) are fixedly connected to the same mounting plate (1908), and the mounting plate (1908) is fixedly connected to the mounting plate (1908). On the side wall of the bottom column (1913) near the top, the outer sides of the plurality of sliding blocks (1911) are fixedly connected to the same filter screen (1901), and the inner side wall of the desulfurization tower (1) located above the filter screen (1901) is fixedly connected to an inner ring plate (1902), and elastic rods (1907) are distributed in a ring shape at the bottom of the inner ring plate (1902), and an oscillating ball (1906) is provided at the bottom of each elastic rod (1907), and the oscillating ball (1906) is in contact with the upper surface of the filter screen (1901).

4. A tail gas desulfurization device based on sulfuric acid processing according to claim 3, characterized in that: The desulfurization tower (1) has two drain holes at the top, and the insides of the two drain holes are fixedly connected to a detection box (3), the inside of the detection box (3) is fixedly connected to a mounting frame (21), and the mounting frame (21) is fixedly connected to a gas detector (24). The detection box (3) has a circulation hole at one side below the gas detector (24), and a circulation pipe (10) is fixedly connected to the inside of the circulation hole. One end of the circulation pipe (10) is plugged into the inside of the desulfurization tower (1) below the discharge channel (9). The circulation pipe (10) is connected to a circulation valve (20) via a flange near the outside of the detection box (3). The detection box (3) has a connection hole at the top, and an drain pipe (22) is fixedly connected to the inside of the connection hole. The outside of the drain pipe (22) is connected to a drain valve (23) via a flange.

5. A method for using a tail gas desulfurization device based on sulfuric acid processing, using the tail gas desulfurization device based on sulfuric acid processing as claimed in claim 4, characterized in that: The method of use comprises the following steps: Step 1: After the exhaust gas enters the desulfurization tower (1), the exhaust gas impacts the filter (1901), and the exhaust gas enters the desulfurization chamber through the filter (1901). The particulate impurities carried by the exhaust gas fall onto the guide cover (1904) below, and then fall onto the annular pumping plate (1905). The adsorption pump (4) is started, and the adsorption pump (4) extracts the particulate impurities; Step 2: After the tail gas enters the desulfurization chamber, it continues to rise to the storage frame (11). The tail gas enters the storage frame (11) from the air holes (16) at different positions. The calcium carbonate accumulated in the storage frame (11) is arranged in layers. After the tail gas enters the storage frame (11), it passes through multiple layers of calcium carbonate during its rise. After passing through the calcium carbonate layer of the storage frame, the tail gas enters the detection box (3). The gas detector (24) detects it. If the detection meets the standard, the tail gas is discharged. The air valve (23) is opened, and the tail gas after desulfurization is discharged. If the detection does not meet the standard, the circulation valve (20) is opened, and the tail gas re-enters the desulfurization chamber through the circulation pipe (10) for secondary desulfurization treatment. Step three: After the calcium carbonate inside the storage frame (11) has been used for a period of time, the second drive motor (1704) is started to drive the blocking plate (1707) to separate from the bottom of the storage frame, and the second hydraulic cylinder (1305) is adjusted to drive the pressing arc plate (1301) to press down, and the first drive motor is driven to drive the first hydraulic cylinder (1305) ... (1202) drives each pressing and unloading arc plate (1301) to rotate the calcium carbonate located above, thereby realizing the rotation and downward pressing of the calcium carbonate at the upper end of the storage frame, and gradually extracting the severely depleted calcium carbonate located below. The extracted calcium carbonate falls into the transfer cover (1702). After falling into the transfer cover (1702), the calcium carbonate falls into the two discharge channels (9) under the guidance of the middle guide cone (1701), and is gradually discharged from the desulfurization tower (1). The staff collects it. After the calcium carbonate located below is discharged, the calcium carbonate is added to the hollow feeding column (1201), and the drive motor 1 (1202) is started. The drive motor 1 (1202) drives the hollow feeding column (1201) to rotate. During the rotation, the angle of the deflection unloading frame (1208) is adjusted by adjusting the hydraulic cylinder 1 (1207), thereby realizing the filling of calcium carbonate at different positions inside the storage frame (11), and then restarting the desulfurization treatment of the exhaust gas.

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