Flue gas purification equipment for aluminum electrolysis anode roasting furnace

Abstract

The invention relates to the technical field of flue gas purification, in particular to flue gas purification equipment for an aluminum electrolysis anode roasting furnace, which comprises a dust collector body, an anode plate, a fixed beam and a frame, the anode plate is arranged in the dust collector body, the fixed beam and the frame are respectively arranged at the upper end and the lower end of the anode plate, and the anode plate is honeycomb-shaped. According to the device, the multiple clamping blocks opposite in position are arranged on the fixed beam and the frame, through the clamping assemblies in the clamping blocks, spine protrusions on the belt type barb cathode wire are clamped between the two sliding blocks by the abutting parts, due to limitation of the sliding ways, the two sliding blocks cannot shake left and right after clamping the cathode wire, and therefore the cathode wire can be clamped more stably. Due to the one-way structure of the abutting part of the upper clamping block and the lower clamping block, the cathode wire can be kept tensioned after being pushed by the first spring; after the cathode wire is broken, the tension disappears, the first spring pops up, and the gap between the sliding blocks is enlarged, so that the cathode wire is separated from the fixed beam and the frame, and the cathode wire is completely separated from electric power.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas purification, in particular to a flue gas purification device for an aluminum electrolysis anode baking furnace. Background Art

[0002] Aluminum electrolysis anode baking furnace is used to manufacture anodes required for aluminum electrolysis process. Anodes are mainly made of petroleum coke, coal, asphalt and other raw materials. The baking furnace removes organic matter from these raw materials by high temperature heating to form a solid anode material. In this process, the temperature in the furnace can reach above 1000℃. The anode material undergoes oxidation reaction in an oxygen environment, releasing gases such as carbon dioxide and carbon monoxide. The main function of the baking furnace is to ensure the quality of the anode, while removing volatiles and incompletely burned components to form an anode suitable for aluminum electrolysis. For environmental protection and energy saving, modern baking furnaces are usually equipped with flue gas purification devices, such as electrostatic precipitators, desulfurization devices and cooling towers, to reduce the emission of pollutants.

[0003] In the above production process, after the cooling tower cools down the high-temperature flue gas, the flue gas passes through the high-voltage electric field through the electrostatic precipitator, and the air molecules are ionized into positive ions and electrons. The electrons encounter dust particles in the process of rushing to the positive electrode, making the dust particles negatively charged. Under the action of the electric field force, these charged dusts move to the electrode with opposite polarity (i.e., the dust collecting electrode) and deposit on the electrode. As more and more smoke dust particles adhere to the dust collecting electrode, block dust is formed on the plate. At this time, these block dusts are dropped into the ash hopper through a vibration mechanism or other means, thereby achieving the purpose of dust removal. The belt-type thorn cathode wire commonly used in the electrostatic precipitator is in a poor working condition, and the flue gas contains strong acidic substances, which can easily cause corrosion or brittle changes in the belt-type thorn cathode wire, resulting in the fracture of the cathode wire. Generally, there are many cathode wires, and the inspectors cannot quickly find the location of the broken cathode wire, and have to spend a long time to investigate, which seriously affects the work efficiency.

[0004] In response to the above problems, the prior art provides some solutions. For example, the invention patent with patent application number CN202021188950.9 provides an anti-short-circuit device for the cathode wire breakage of an electrostatic precipitator. In this solution, the two ends of the cathode wire are respectively arranged on the line frame and the fixed beam, and an installation cavity is provided in the fixed beam. A detection device is provided on the fixed beam and includes a lifting block, a ring and an elastic member. The lifting block is vertically slidably arranged on the fixed beam and the bottom end is inserted into the installation cavity; the ring is arranged at the bottom end of the lifting block, and the top end of the cathode wire is inserted into the installation cavity and connected to the ring; the two ends of the elastic member are respectively connected to the lifting block and the fixed beam, and the initial state is a compressed state. After one of the cathode wires of the present invention breaks and becomes detached, the lifting block originally connected to the cathode wire rises under the action of the elastic member, making the lifting block higher than other lifting blocks, making it convenient for the staff to find the broken cathode wire, saving the staff's time for investigation and improving work efficiency. However, the position of the broken cathode wire cannot be determined in this scheme. Since the broken cathode wire cannot be kept taut, the cathode wire may directly contact the anode plate, thereby causing the power system of the electrostatic precipitator to short-circuit. When the power system of the electrostatic precipitator short-circuits, the electrostatic precipitator cannot purify the flue gas and the power system of the electrostatic precipitator may also be damaged. Summary of the invention

[0005] The purpose of the present invention is to provide a flue gas purification device for an aluminum electrolytic anode baking furnace to solve the problem that the acidic flue gas generated by the aluminum electrolytic anode baking furnace makes it easy for the broken cathode wire of the belt-type thorn cathode wire to fall on the anode plate after being corroded by the flue gas, thereby causing a short circuit in the power system of the electrostatic precipitator; when the above-mentioned problem occurs in the purification device, its dust removal effect is reduced and it will also bring about greater economic losses, while solving the shortcomings of the existing technical solutions.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flue gas purification device for an aluminum electrolytic anode baking furnace includes an electrostatic precipitator body, an anode plate, a cathode wire, a fixed beam and a frame, wherein the anode plate is arranged in the electrostatic precipitator body, and the fixed beam and the frame are respectively arranged at the upper and lower ends of the anode plate, the anode plate is honeycomb-shaped, and the cathode wire runs through the anode plate. Specifically, a plurality of clamping blocks are bolted to the fixed beam and the frame, a slideway is provided in the clamping block, a clamping assembly is provided in the clamping block, and the clamping assembly includes two sliders slidably installed inside the slideway, the two sliders fix the cathode wire through a clamping force, and the clamping assembly keeps the slider inside the slideway through the tension of the cathode wire, and expands the gap between the two sliders after the tension of the cathode wire is lost.

[0008] It is easy to understand that multiple clamps are arranged at opposite positions on the fixed beam and the frame, and the upper and lower clamps correspond to the single honeycomb holes on the honeycomb anode plate. Through the clamping assembly in the clamp, the belt-type barbed cathode wire is clamped by the sliders on both sides, and the spike protrusions thereon are stuck between the two sliders by the abutment part. Due to the limitation of the slide, the two sliders cannot swing left and right after clamping the cathode wire. Due to the unidirectional structure of the abutment part of the upper and lower clamps, the cathode wire can be kept taut after being pushed by the spring 1; after the cathode wire breaks, its tension disappears, the spring 1 pops out, and the gap of the slider expands, so that the cathode wire can be separated from the fixed beam and the frame, thereby completely separating the cathode wire from the electricity, thereby avoiding the contact between the cathode and the anode to cause an electric field short circuit.

[0009] Preferably, the slide is in a herringbone shape, and the clamping assembly includes a slider, a spring and a limit block, the limit block is arranged at the opening of the slide close to the direction of the anode plate, the two sliders are slidably connected to the inner wall of the slide, the upper and lower ends of the spring are respectively connected to the slider and the slide, the slide is also provided with an abutment portion that abuts against the shape of the cathode line, when the cathode line is clamped by the sliders on both sides, the spike protrusions on both sides are abutted by the abutment portion, the spring is arranged obliquely from the opening of the slide toward the inner wall of the slide, a blocking piece is also installed on one side of the clamping block located on the frame, and the lower end surface of the slider abuts against the blocking piece, the slide is in a herringbone shape, the spring is arranged obliquely from the opening of the slide toward the inner wall of the slide, a blocking piece is also installed on one side of the clamping block located on the frame, and the lower end surface of the slider abuts against the blocking piece.

[0010] It is easy to understand that the spiked protrusion on the cathode wire is stuck between the two sliders by the abutment part. Due to the limitation of the slideway, the two sliders cannot swing left and right after clamping the cathode wire. The upper and lower clamps can keep the cathode wire taut after receiving the thrust of spring 1 due to the unidirectional structure of the abutment part; after the cathode wire breaks, its tension disappears, spring 1 pops out, and the gap between the sliders expands, so that the cathode wire can be separated from the fixed beam and the frame, thereby completely separating the cathode wire from the electricity, thereby avoiding the situation where the cathode and the anode contact and cause the electric field short circuit. In order to ensure that the gap between the sliders is large enough after the cathode wire breaks, the cathode wire The wire can be smoothly released from the clamping of the slider while reducing the volume of the clamping block. By setting the slideway in a finished shape, after the cathode wire breaks, the spring one is arranged obliquely, so that the slider can move to the wider inner wall on both sides of the slideway after separation, so that the gap between the sliders is large enough, thereby ensuring that the cathode wire can be released from the clamping of the sliders on both sides; at the same time, when a new cathode wire is installed, as the cathode wire is stretched downward and tensioned, the spring one is arranged obliquely, and as the spring one is further compressed, the squeezing force of the sliders on the cathode wire on the two sides is further increased, thereby ensuring the stability of the cathode wire after stretching and tensioning, and reducing the probability of falling off due to vibration.

[0011] Preferably, the barrier member includes a cover plate, a hinge and an elastic member, the cover plate is arranged below the anode plate and parallel to the side plate of the anode plate, the hinge is respectively connected to the side of the clamping block and the cover plate, one end of the elastic member is connected to the other side of the clamping block, and the other end is connected to the hinge near the anode plate, a boss is also provided at the opening of the slide toward the anode plate, the boss abuts against the hinge, a slot is provided on the hinge, a buckle matching the slot is provided on the inner wall of the slide located at the slot, and the buckle abuts against the lower end surface of the slider.

[0012] It is easy to understand that in order to prevent the electric field in the anode plate where the cathode wire is located from disappearing after the cathode wire breaks, causing the unpurified flue gas to leak from the anode plate where the electric field disappears, thereby reducing the purification effect of the purification equipment on the flue gas, the slider is pushed into the slideway by the elastic force of spring 1. During this process, the slider abuts against one end of the buckle and causes the buckle to move downward, so that the buckle is disengaged from the slot, and the elastic member is no longer restricted, thereby driving the hinge to flip the cover plate. During the contraction of the elastic member, the hinge contacts the boss, thereby increasing the covering degree of the cover plate, and then closing the anode plate, thereby preventing the unpurified flue gas from escaping from the anode plate that has lost the electric field, causing the electrostatic precipitator to fail to purify the flue gas; and when the staff installs the new cathode wire, the cover plate is moved laterally and away from the elastic member. When the cover plate moves laterally to half of the diameter of the cover plate, the cover plate can be flipped and pressed toward the clamping block along the movement path of the hinge until the buckle The cover is re-locked with the card slot to complete the reset of the cover, thereby ensuring that after the electric field in the anode plate disappears, the unpurified flue gas will not leak from the anode plate at that location, thereby ensuring the purification effect of the purification equipment on the flue gas; at the same time, due to the closure of the cover, maintenance personnel can easily observe the difference between the anode plate at that location and the anode plates at other locations, so as to quickly know that the cathode wire at that location needs to be replaced, thereby reducing the difficulty of maintenance for personnel. Due to the harsh environment inside the dust collector, in order to achieve the closure of the anode plate by the cover, the contraction elastic force of the spring is used to drive the hinge to flip the cover. Due to the simple structure of the spring and the low manufacturing cost, the spring can maintain a long-term stretch within the stress range and can work stably for a long time. Compared with the electric or pneumatic drive system, the spring drive reduces the maintenance frequency and maintenance cost, and is made of 321 stainless steel, which has an increased acid flue gas resistance, thereby ensuring the sealing of the cover to the anode plate.

[0013] Preferably, oil replenishing grooves are provided on the inner walls on both sides of the slideway, and the oil replenishing grooves are connected to the sliding blocks.

[0014] It is easy to understand that due to the harsh environment inside the dust collector, in order to prevent the slider from being fixed in the slide for a long time, resulting in adhesion between the contact surfaces of the two due to rust, when the cathode wire is disconnected, due to the long-term corrosion of the acidic flue gas, the slider loses the tension of the cathode wire, and the elastic force of the spring cannot make the slider slide along the inner wall of the slide, resulting in the cathode wire being unable to detach smoothly. By providing an oil filling groove connected to the slider on the inner wall of the slide, lubricating oil is injected into the oil filling groove in advance before installing the clamp, and the oil is used to isolate the corrosion of the acidic flue gas, thereby avoiding adhesion between the contact surfaces of the two due to rust, thereby ensuring the stable ejection of the slider.

[0015] Preferably, the abutment portion is made of an elastic metal sheet, and a plurality of the elastic metal sheets are linearly arrayed on both sides of the end surface of the slider, and the elastic metal sheets are arranged obliquely upward toward the protrusion of the cathode line. The connection between the abutment portion and the clamping block is a flexible unidirectional movable structure, on which an elastic metal ring is also provided.

[0016] In order to further reduce the difficulty of installing the cathode wire, the abutment part is arranged to be inclined toward the insertion direction of the cathode wire from the slide, and the connection with the clamping block is a flexible unidirectional movable structure, so that the cathode wire can be directly inserted into the gap between the sliders on both sides after being pressed by the slider, thereby omitting the step of aligning the cathode wire with the abutment part, thereby reducing the difficulty of installing the cathode wire. When the cathode wire passes through the abutment part, the elastic metal ring is squeezed and deformed as the abutment part is deformed, thereby avoiding excessive deformation of the abutment part under the opposite forces from above and below, thereby improving the structural strength of the abutment part.

[0017] Preferably, the slider is provided with a clamping portion in a linear array at the outer side of the abutting portion, the clamping portion is in a square shape, and the clamping portion is complementary to the clamping portion of the slider opposite to the slider.

[0018] Since the cathode wire is clamped by the sliders on both sides, the springs on both sides tighten a pair of cathode wires at the same time. Since the cathode wire is arranged in a variety of ways including straight lines and spiral lines, the forces on the springs on both sides are not uniform, causing the sliders to be non-parallel in the slideway, resulting in the expansion of the gap between the sliders, making it impossible for the cathode wire to remain taut, resulting in uneven electric field distribution and even cathode wire falling off, which directly leads to a decrease in the dust removal effect of the dust collector. By providing complementary clamping parts between the two sliders, the relative positions of the two sliders remain consistent after the sliders clamp the cathode wire, thereby ensuring that the cathode wire remains taut throughout the entire process, making the electric field evenly distributed, thereby ensuring the adsorption effect of the anode plate on particles in the flue gas.

[0019] Preferably, the frame is further provided with a guide groove directly below the cathode line, the guide groove passes through the slideway, and the lowermost end of the cathode line is connected to a counterweight block, and the counterweight block is located in the guide groove.

[0020] In order to avoid the risk of electrical short circuit or electric shock caused by the fallen cathode wire with residual high voltage remaining in the anode plate, a guide groove is opened directly below the cathode wire so that the cathode wire can be quickly taken away from the anode plate by the counterweight after breaking, and will not be trapped in the anode plate due to deformation. The broken cathode wire falls to the bottom of the dust collector. The personnel only need to enter the dust collector to clean up the fallen cathode wire in time, reducing the difficulty of equipment maintenance. At the same time, the cathode wire is completely separated from the dust removal system. Failure to clean up the fallen cathode wire will not lead to a decrease in dust removal effect, thus avoiding extended downtime and increased maintenance costs.

[0021] Preferably, a damping ring is also provided inside the rotating part of the hinge.

[0022] In order to prevent the cathode wire from falling completely from the guide groove due to its excessive length, which results in the cover closing the anode plate while a gap appears on the contact surface between the cover and the anode plate due to the presence of the cathode wire, causing incompletely purified flue gas to leak from the failed anode plate, resulting in a decrease in the purification effect, a damping ring is provided to extend the rotation time of the hinge, so that the cover can be flipped slowly and evenly. By extending the sealing process, it is ensured that the cathode wire has enough time to fall, and the sealing between the anode plate and the cover is ensured, thereby preventing the unpurified flue gas from escaping from the anode plate that has lost the electric field.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention sets a plurality of clamping blocks at opposite positions on a fixed beam and a frame. Through the clamping assembly in the clamping blocks, the belt-type barbed cathode wire is clamped by the sliders on both sides, and the spiked protrusions thereon are stuck between the two sliders by the abutting parts. Due to the limitation of the slideway, the two sliders cannot swing left and right after clamping the cathode wire. Due to the unidirectional structure of the abutting parts of the upper and lower clamping blocks, the cathode wire can be kept taut after being pushed by the spring 1; after the cathode wire breaks, its tensioning force disappears, the spring 1 pops out, and the gap between the sliders expands, so that the cathode wire can be separated from the fixed beam and the frame, thereby completely separating the cathode wire from the electricity.

[0025] 2. The present invention provides complementary clamping parts between two opposing sliders so that after the sliders clamp the cathode wire, the relative positions of the two sliders remain consistent, thereby ensuring that the cathode wire remains tensioned throughout the entire process, making the electric field evenly distributed, thereby ensuring the adsorption effect of the anode plate on particles in the flue gas.

[0026] 3. The present invention prolongs the rotation time of the hinge by setting a damping ring, so that the cover plate can be flipped slowly and evenly. By prolonging the sealing process, it is ensured that the cathode wire has enough falling time, and the sealing between the anode plate and the cover plate is ensured, thereby preventing unpurified flue gas from escaping from the anode plate that has lost the electric field.

[0027] 4. The present invention provides a guide groove connecting the slideway in the frame so that the cathode wire is quickly taken away from the anode plate by the counterweight after breaking, and will not be retained in the anode plate due to deformation. The broken cathode wire falls to the bottom of the dust collector, and personnel only need to enter the dust collector to clean up the fallen cathode wire in time, thereby reducing the difficulty of equipment maintenance. At the same time, the cathode wire is completely separated from the dust removal system, and failure to clean up the fallen cathode wire will not lead to a decrease in the dust removal effect, thereby avoiding extended downtime and increased maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the fume purification equipment of the aluminum electrolysis anode baking furnace of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the clamp block at A in the middle;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the clamp block at B in the middle;

[0031] Figure 4 for Figure 2 A full cross-sectional view of the structural state of the abutment part and the cathode line at the middle CC;

[0032] Figure 5 It is a schematic diagram of the parts structure of the slider;

[0033] Figure 6 for Figure 3 Full cross-section of the structural state at DD in the middle;

[0034] Figure 7 for Figure 6 An enlarged view of the structure of the card slot and the buckle at E in the middle;

[0035] Figure 8 It is a schematic diagram of the structural state in which the slider squeezes the buckle after the cathode wire is detached so that the cover plate seals the anode plate.

[0036] In the figure: 101, anode plate; 102, cathode line; 1021, counterweight; 103, fixed beam; 104, frame; 1041, guide groove; 105, clamping block; 106, slideway; 1061, oil filling groove; 2, clamping assembly; 201, slider; 202, spring 1; 203, limit block; 204, abutment part; 2041, elastic metal sheet; 2042, elastic metal ring; 205, clamping part; 3, barrier member; 301, cover plate; 302, hinge; 3021, damping ring; 303, boss; 304, slot; 305, buckle; 4, elastic member. DETAILED DESCRIPTION

[0037] The present invention provides a fume purification device for an aluminum electrolytic anode baking furnace, and the technical scheme is as follows:

[0038] See also Figures 1 to 8, a flue gas purification device for an aluminum electrolytic anode baking furnace, comprising an electrostatic precipitator body (not shown), an anode plate 101, a cathode line 102, a fixed beam 103 and a frame 104, wherein the anode plate 101 is arranged in the electrostatic precipitator body, the fixed beam 103 and the frame 104 are respectively arranged at the upper and lower ends of the anode plate 101, the anode plate 101 is honeycomb-shaped, the cathode line 102 passes through the anode plate 101, and specifically, the fixed beam 103 and the frame 104 are bolted A plurality of clamping blocks 105 are connected, a slideway 106 is provided inside the clamping block 105, a clamping assembly 2 is provided inside the clamping block 105, and the clamping assembly 2 includes two sliders 201 slidably installed inside the slideway 106, the two sliders 201 fix the cathode wire 102 through a clamping force, the clamping assembly 2 keeps the slider 201 inside the slideway 106 through the pulling force of the cathode wire 102, and expands the gap between the two sliders 201 after the pulling force of the cathode wire 102 is lost.

[0039] See also Figures 2 to 5 and Figure 8 The slideway 106 is in a herringbone shape, and oil replenishing grooves 1061 are also provided on the inner walls on both sides of the slideway 106. The oil replenishing grooves 1061 are connected to the slider 201. The clamping assembly 2 includes a slider 201, a spring 202 and a limit block 203. The limit block 203 is arranged at the opening of the slideway 106 close to the direction of the anode plate 101. The two sliders 201 are slidably connected to the inner wall of the slideway 106. The upper and lower ends of the spring 202 are respectively connected to the slider 201 and the slideway 106. An abutment portion 204 abutting against the shape of the cathode line 102 is also provided in the slideway 106. When the cathode line 102 is clamped by the sliders 201 on both sides, the spike protrusions on both sides are abutted by the abutment portion 204. When the cathode line 102 breaks, the spring 202 moves away from the cathode line 102. It pops up from the direction of the anode plate 101, and a spring 202 is arranged obliquely from the opening of the slide 106 toward the inner wall of the slide 106. A barrier 3 is also installed on one side of the clamping block 105 on the frame 104. The lower end face of the slider 201 abuts against the barrier 3. The abutting portion 204 is made of an elastic metal sheet 2041. A plurality of elastic metal sheets 2041 are arranged in a linear array on both sides of the end face of the slider 201. The elastic metal sheet 2041 is arranged obliquely upward toward the protrusion of the cathode line 102, and an elastic metal ring 2042 is also provided thereon. The slider 201 has a clamping portion 205 in a linear array on the outer side of the abutting portion 204. The clamping portion 205 is in a square shape, and the clamping portion 205 is complementary to the clamping portion 205 of the opposite slider 201.

[0040] See also Figure 1 , Figure 3 , Figures 6 to 8The barrier 3 includes a cover plate 301, a hinge 302 and an elastic member 4. The cover plate 301 is arranged below the anode plate 101 and is parallel to the side plate of the anode plate 101. The hinge 302 is respectively connected to the side of the clamping block 105 and the cover plate 301. A damping ring 3021 is also provided in the rotating part of the hinge 302. One end of the elastic member 4 is connected to the other side of the clamping block 105, and the other end is connected to the hinge 302 near the anode plate 101. A boss 303 is also provided at the opening of the slideway 106 facing the anode plate 101, and the boss 303 abuts against the hinge 302. A slot 304 is provided on the hinge 302, and a buckle 305 matching the slot 304 is provided on the inner wall of the slide 106 located at the slot 304, and the buckle 305 abuts against the lower end surface of the slider 201. The elastic member 4 is a spring, and the elastic member 4 is made of 321 stainless steel and the initial state of the elastic member 4 is a stretched state. The frame 104 is located directly below the cathode line 102 and is also provided with a guide groove 1041, and the guide groove 1041 runs through the slide 106. The lower end of the cathode line 102 is connected to a counterweight block 1021, and the counterweight block 1021 is located in the guide groove 1041.

[0041] See also Figures 1 to 8A plurality of clamping blocks 105 are arranged at opposite positions on the fixed beam 103 and the frame 104. The upper and lower clamping blocks 105 correspond to the single honeycomb holes on the honeycomb anode plate 101. The band-type thorn cathode wire 102 is clamped and fixed by the sliders 201 on both sides through the clamping assembly 2 in the clamping block 105. Due to the limitation of the slideway 106, the spike protrusions on the cathode wire 102 are clamped between the two sliders 201 by the abutment portion 204. Since the cathode wire 102 is clamped by the sliders 201 on both sides, the springs 202 on both sides tighten the cathode wire 102 at the same time. Since the arrangement of the cathode wire 102 includes various methods such as a straight line and a spiral line, the springs 202 on both sides are arranged in a plurality of ways, so that the springs 202 on both sides are arranged in a plurality of ways. The force exerted on the slider 202 is not uniform, so that the slider 201 is not parallel in the slideway 106, causing the gap between the sliders 201 to expand, so that the cathode wire 102 cannot be kept tight, resulting in uneven electric field distribution, and even the cathode wire 102 falling off, which directly leads to a decrease in the dust removal effect of the dust collector. By setting a complementary clamping part 205 between the two sliders 201, the sliders 201 can keep the relative positions of the two sliders 201 consistent after clamping the cathode wire 102, thereby ensuring that the cathode wire 102 is kept tight throughout the whole process, making the electric field uniformly distributed, thereby ensuring the adsorption effect of the anode plate 101 on the particles in the flue gas. In order to further reduce the cathode wire 1 In order to reduce the installation difficulty of the cathode wire 102, the abutting part 204 is arranged obliquely toward the insertion direction of the cathode wire 102 from the slideway 106. Due to the elasticity and arrangement direction of the elastic metal sheet 2041, the cathode wire 102 can be directly inserted into the gap between the sliders 201 on both sides after being pressed by the slider 201, thereby omitting the step of aligning the cathode wire 102 with the abutting part 204, thereby reducing the installation difficulty of the cathode wire 102. When the cathode wire 102 passes through the abutting part 204, the elastic metal ring 2042 is squeezed and deformed along with the deformation of the abutting part 204, thereby avoiding excessive deformation of the abutting part 204 under the opposite forces from the upper and lower parts, thereby improving the abutting Due to the structural strength of the part 204, the two sliders 201 cannot swing left and right after clamping the cathode wire 102. The upper and lower clamping blocks 105 have a unidirectional structure of the abutting part 204, so that after the cathode wire 102 is pushed by the spring 1 202, the sliders 201 in the upper and lower clamping blocks 105 tighten the cathode wire 102, and the cathode wire 102 can be kept taut. As the cathode wire 102 is stretched downward and tensioned, the spring 1 202 is arranged obliquely. As the spring 1 202 is further compressed, the squeezing force of the sliders 201 on the cathode wire 102 on the two sides is further increased, thereby ensuring the stability of the cathode wire 102 after being stretched and tensioned, and reducing the probability of falling off due to vibration.After the cathode wire 102 breaks, the tension of the cathode wire 102 disappears, and the gap of the slider 201 expands, so that the cathode wire 102 can be separated from the fixed beam 103 and the frame 104, thereby completely separating the cathode wire 102 from the power. Due to the harsh environment in the dust collector, the slider 201 is fixed in the slideway 106 for a long time, resulting in the adhesion between the contact surfaces of the two due to rust. When the cathode wire 102 is disconnected, due to the long-term corrosion of the acidic flue gas, after the slider 201 loses the tension of the cathode wire 102, the elasticity of the spring 1 202 cannot make the slider 201 slide along the inner wall of the slideway 106, so that the cathode wire 102 cannot be smoothly separated. By setting an oil replenishing groove 1061 connected to the slider 201 on the inner wall of the slideway 106, before installing the clamp 105, lubricating oil is injected into the oil replenishing groove 1061 in advance, the corrosion of the acidic flue gas is isolated by the oil, thereby ensuring the stable ejection of the slider 201. ;

[0042] After the cathode wire 102 breaks, the tension of the cathode wire 102 on the slider 201 disappears, the spring 1 202 pops out, and the gap of the slider 201 expands, so that the cathode wire 102 can be separated from the fixed beam 103 and the frame 104, thereby completely separating the cathode wire 102 from the power. In order to ensure that the gap between the sliders 201 is large enough after the cathode wire 102 breaks, so that the cathode wire 102 can be smoothly separated from the clamping of the slider 201, and the volume of the clamping block 105 is reduced, the slide 106 is set in a finished product shape, so that after the cathode wire 102 breaks, the spring 1 202 is arranged obliquely, so that the slider 201 can move to the wider inner wall on both sides of the slide 106 after separation, so that the gap between the sliders 201 is large enough, thereby ensuring the cathode wire 102 The wire 102 is able to break away from the clamping of the sliders 201 on both sides. In order to avoid the risk of electrical short circuit or electric shock caused by the fallen cathode wire 102 with residual high voltage remaining in the anode plate 101, a guide groove 1041 is opened directly below the cathode wire 102, so that the cathode wire 102 is quickly taken away from the anode plate 101 by the counterweight block 1021 after breaking, and will not be retained in the anode plate 101 due to deformation. The broken cathode wire 102 falls to the bottom of the dust collector, and the personnel only need to enter the dust collector to clean up the fallen cathode wire 102 in time, thereby reducing the difficulty of equipment maintenance. At the same time, the cathode wire 102 is completely separated from the dust removal system, and failure to clean up the fallen cathode wire 102 will not lead to a decrease in the dust removal effect, thereby avoiding extended downtime and increased maintenance costs.

[0043] After the cathode line 102 breaks, the electric field in the anode plate 101 where it is located disappears, causing the unpurified flue gas to leak from the anode plate 101 where the electric field disappears, causing the purification effect of the purification device on the flue gas to decrease. The slider 201 is pushed out into the slideway 106 by the elastic force of the spring 1 202. During this process, the slider 201 abuts against one end of the buckle 305 and causes the buckle 305 to move downward, so that the buckle 305 is separated from the slot 304, and the elastic member 4 is no longer restricted, thereby driving the hinge 302 to flip the cover plate 301. During the contraction process of the elastic member 4, the hinge 302 contacts the boss 303, thereby increasing the coverage of the cover plate 301, and then the anode plate 101 is turned over. In order to prevent the cathode wire 102 from falling completely from the guide groove 1041 due to the cathode wire 102 being too long, and causing a gap to appear on the contact surface between the cover plate 301 and the anode plate 101 due to the existence of the cathode wire 102, while the cathode wire 102 is closing the anode plate 101, so that the incompletely purified flue gas leaks from the failed anode plate 101, resulting in a decrease in the purification effect, the damping ring 3021 is provided to extend the rotation time of the hinge 302, and the cover plate 301 can be slowly and evenly turned over, and the sealing process is extended to ensure that the cathode wire 102 has enough time to fall, and the sealing between the anode plate 101 and the cover plate 301 is ensured; and when the staff When installing a new cathode wire 102, the cover plate 301 is moved laterally and away from the elastic member 4. When the cover plate 301 is moved laterally to half of the diameter of the cover plate 301, the cover plate 301 can be flipped over and pressed toward the clamping block 105 along the movement path of the hinge 302 until the buckle 305 is locked with the slot 304 again, thereby completing the reset of the cover plate 301, thereby ensuring that after the electric field in the anode plate 101 disappears, the unpurified flue gas will not leak from the anode plate 101 at that location, thereby ensuring the purification effect of the purification equipment on the flue gas; at the same time, due to the closure of the cover plate 301, the maintenance personnel can easily observe that the anode plate 101 at that location is not cleaned. The difference between the plate 101 can quickly tell that the cathode line 102 needs to be replaced, thereby reducing the difficulty of maintenance for personnel. Since the environment inside the dust collector is relatively harsh, in order to achieve the closure of the cover plate 301 to the anode plate 101, the contraction elastic force of the spring is used to drive the hinge 302 to flip the cover plate 301. Due to the simple structure of the spring and the low manufacturing cost, the spring can maintain a long-term stretch within the stress range and can work stably for a long time. Compared with the electric or pneumatic drive system, the spring drive reduces the maintenance frequency and maintenance cost, and is made of 321 stainless steel, which has an increased acid flue gas resistance, thereby ensuring the sealing of the cover plate 301 to the anode plate 101.

[0044] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A flue gas purification device for an aluminum electrolytic anode baking furnace, comprising an electrostatic precipitator body, an anode plate (101), a cathode line (102), a fixed beam (103) and a frame (104), wherein the anode plate (101) is arranged in the electrostatic precipitator body, the fixed beam (103) and the frame (104) are respectively arranged at the upper and lower ends of the anode plate (101), the anode plate (101) is honeycomb-shaped, and the cathode line (102) passes through the anode plate (101), characterized in that: The fixed beam (103) and the frame (104) are both bolted with a plurality of clamping blocks (105), a slideway (106) is provided in the clamping block (105), a clamping assembly (2) is provided in the clamping block (105), and the clamping assembly (2) comprises two sliders (201) slidably mounted inside the slideway (106), the two sliders (201) fix the cathode wire (102) by a clamping force, the clamping assembly (2) keeps the slider (201) inside the slideway (106) by the pulling force of the cathode wire (102), and expands the gap between the two sliders (201) after the pulling force of the cathode wire (102) is lost.

2. The flue gas purification equipment for an aluminum electrolysis anode baking furnace according to claim 1, characterized in that: The slideway (106) is in a herringbone shape. The clamping assembly (2) comprises a slider (201), a spring (202) and a stop block (203). The stop block (203) is arranged at the opening of the slideway (106) close to the direction of the anode plate (101). The two sliders (201) are slidably connected to the inner wall of the slideway (106). The upper and lower ends of the spring (202) are respectively connected to the slider (201) and the slideway (106). The slideway (106) is also provided with a stop block (203) connected to the cathode plate (101). The cathode wire (102) is clamped by the sliders (201) on both sides, and the spiked protrusions on both sides are abutted by the abutting parts (204). The spring 1 (202) is arranged obliquely from the opening of the slideway (106) toward the inner wall of the slideway (106). A blocking member (3) is also installed on one side of the clamping block (105) located on the frame (104), and the lower end surface of the slider (201) abuts against the blocking member (3).

3. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 2, characterized in that: The barrier member (3) comprises a cover plate (301), a hinge (302) and an elastic member (4); the cover plate (301) is arranged below the anode plate (101) and is parallel to the side plate of the anode plate (101); the two ends of the hinge (302) are respectively connected to the side of the clamping block (105) and the cover plate (301); one end of the elastic member (4) is connected to the other side of the clamping block (105), and the other end is connected to the hinge (302) near the anode plate (101); the elastic member (4) is a spring; The elastic member (4) is made of 321 stainless steel and the initial state of the elastic member (4) is a stretched state. A boss (303) is also provided at the opening of the slideway (106) toward the anode plate (101), and the boss (303) abuts against the hinge (302). A slot (304) is provided on the hinge (302). A buckle (305) matching the slot (304) is provided on the inner wall of the slideway (106) at the slot (304), and the buckle (305) abuts against the lower end surface of the slider (201).

4. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 2, characterized in that: Oil replenishing grooves (1061) are also provided on the inner walls of both sides of the slideway (106), and the oil replenishing grooves (1061) are connected to the sliding block (201).

5. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 2, characterized in that: The abutment portion (204) is made of an elastic metal sheet (2041), and a plurality of the elastic metal sheets (2041) are arranged in a linear array on both sides of the end surface of the slider (201). The elastic metal sheets (2041) are arranged obliquely upward toward the protrusion of the cathode line (102), and an elastic metal ring (2042) is also arranged thereon.

6. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 2, characterized in that: The slider (201) has a clamping portion (205) in a linear array on the outside of the abutting portion (204); the clamping portion (205) is in a square shape and is complementary to the clamping portion (205) on the slider (201).

7. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 2, characterized in that: The frame (104) is also provided with a guide groove (1041) located directly below the cathode line (102), the guide groove (1041) passes through the slideway (106), the lower end of the cathode line (102) is connected to a counterweight block (1021), and the counterweight block (1021) is located in the guide groove (1041).

8. The flue gas purification equipment for aluminum electrolysis anode baking furnace according to claim 3, characterized in that: A damping ring (3021) is also provided in the rotating part of the hinge (302).

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