An integrated dust removal and purification device for a casting electric furnace

Abstract

The present invention discloses an integrated dust removal and purification device for a casting electric furnace, which relates to the technical field of waste gas treatment, and comprises a dust removal box, a dust removal mechanism is arranged outside the dust removal box, the dust removal mechanism comprises a pressurized water pump, the output end of the pressurized water pump is fixedly connected with a connecting pipe, the end of the connecting pipe away from the pressurized water pump is fixedly connected with a connecting frame, the connecting frame is fixedly connected to the upper surface of the dust removal box, three nozzles are installed on the bottom surface of the connecting frame, the inner wall of the dust removal box is slidably connected with a sliding frame, and the inner wall of the sliding frame is fixedly connected with a first filter plate. It can spray water to remove dust from the waste gas generated by the casting electric furnace through the arrangement of the dust removal box and the dust removal mechanism, and the dust in the water has weaker adhesion than the dust in the gas, so that the dust in the waste gas is prevented from being easily attached to the second filter plate, thereby reducing the cleaning and maintenance frequency of the second filter plate, and facilitating use.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to an integrated dust removal and purification device for a casting electric furnace. Background Art

[0002] Waste gas treatment refers to the pre-treatment of waste gas generated in industrial sites and factory workshops before external discharge to meet the national standards for waste gas discharge. When the casting electric furnace is working, the sand core and wet sand are affected by the high-temperature molten iron, which generates a large amount of smoke and formaldehyde, phenols, amines and other odorous waste gases. Usually, dust removal and purification integrated devices are used to treat the waste gas.

[0003] According to the foundry industry casting waste gas activated carbon adsorption treatment device disclosed in the patent No. CN214861989U, the device removes dust in the casting waste gas through the dust removal filter, and drives the electric telescopic rod to operate by starting the drive motor, so that the brush moves to clean the dust on the dust removal filter, and finally the dust falls into the dust collection trough. The dust collection trough is taken out by pulling the collection trough handle, which is convenient for cleaning the dust.

[0004] However, during the implementation of the above scheme, it is not convenient to spray water to remove dust from the exhaust gas generated by the casting furnace. Most of the existing dust removal and purification devices use filter plates to directly remove dust and filter the exhaust gas generated by the casting furnace. In order to avoid dust clogging the filter plate during long-term use, the filter plate is regularly cleaned and maintained, and the dust in the exhaust gas is more likely to adhere to the filter plate, making it easy for the dust to accumulate and clog the filter plate, thereby increasing the frequency of cleaning and maintenance of the filter plate. To this end, we provide an integrated dust removal and purification device for casting furnaces to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide an integrated dust removal and purification device for a casting electric furnace.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dust removal and purification integrated device for a casting electric furnace, comprising a dust removal box, a dust removal mechanism is arranged on the outside of the dust removal box, the dust removal mechanism comprises a pressurized water pump, the output end of the pressurized water pump is fixedly connected with a connecting pipe, the end of the connecting pipe away from the pressurized water pump is fixedly connected with a connecting frame, the connecting frame is fixedly connected to the upper surface of the dust removal box, three nozzles are installed on the bottom surface of the connecting frame, the inner wall of the dust removal box is slidably connected with a sliding frame, the inner wall of the sliding frame is fixedly connected with a first filter plate, the inner wall of the dust removal box is fixedly connected with a second filter plate, the dust removal box is fixedly connected with a purification mechanism on the outside, and the purification mechanism comprises a purification box.

[0007] Furthermore, an annular crushing blade is provided in the filter hole of the second filter plate, and the crushing blade is detachable. Since dust and impurities carry moisture, dust and impurities are easy to block the filter hole of the second filter plate when passing through the second filter plate. An annular blade is provided in the filter hole, which can be used to crush and cut the dust and impurities passing through the filter hole, so that they can pass through the filter hole smoothly and prevent the filter hole from being blocked. A rotating frame is provided at the bottom of the connecting frame, and the nozzles are fixedly mounted on the rotating frame. A motor for driving the rotating frame to rotate is provided inside the connecting frame. The rotating frame is driven to rotate by the motor, thereby driving the three nozzles to rotate and spray at the same time, which can increase the spraying area and prevent dust removal dead corners. It also includes an air blowing device, which is arranged inside the dust removal box and above the first filter plate. The air blowing device includes an air pump, a main air pipe, a bronchial pipe and an air blowing drive mechanism. The air pump is arranged on the outer wall of the dust removal box, and the air pump is connected to the bronchial pipe through the main air pipe. The main air pipe is a retractable hose. The bronchial pipe includes a plurality of first bronchi that blow air vertically downward and a plurality of second bronchi that blow air horizontally to the left. The first bronchial pipe is blowing air directly to the first filter plate, and the second bronchial pipe is blowing air directly to the second filter plate. The air blowing drive mechanism includes a servo motor and a screw rod. The screw rod is threadedly connected to the mounting seat of the bronchial pipe and is used to drive the bronchial pipe to move along the front and rear directions of the dust removal box. Since dust and impurities will remain in the filter holes of the first filter plate and the second filter plate when passing through the first filter plate and the second filter plate, which will cause the filter holes to be blocked for a long time, the first bronchial tube and the second bronchial tube of the air blowing device can be respectively aimed at the filter holes of the first filter plate and the second filter plate for blowing, so that the dust and impurities in the filter holes are removed by high-pressure gas. At the same time, under the drive of the air blowing drive mechanism, the first bronchial tube and the second bronchial tube can move along the front and rear directions of the dust removal box, thereby increasing the air blowing area on the first filter plate and the second filter plate at the same time.

[0008] Furthermore, the first filter plate and the second filter plate are made of chromium stainless steel, wherein the weight percentage of chromium is Where n is 1, 2, 3, etc., and the weight percentage of nickel is 8-10%, the weight percentage of manganese is 6-8%, the weight percentage of molybdenum is 3-5%, the weight percentage of copper is 1-3%, and the rest is iron; since the waste gas generated in industrial places and factory workshops contains acidic and alkaline corrosive gases, some of which dissolve in water to form corrosive liquids, when the corrosive gases and corrosive liquids pass through the first filter plate and the second filter plate, they will corrode the first filter plate and the second filter plate, and the filter holes of the filter plate will be deformed in the long run, which is not conducive to the filtration and adsorption of dust and impurities; Experiments have shown that after adding chromium to the iron-based solid solution, its electrode potential can be increased. When the chromium content reaches a certain level, this increase suddenly occurs. Correspondingly, the corrosion resistance of the alloy steel in corrosive environments such as industrial waste gas and acidic and alkaline solutions is improved. From the experimental results, when the atomic percentage of chromium content is 12.5%, 25%, and 37.5%, the corrosion rate of the alloy steel is significantly reduced, that is, the percentage of chromium is When , the corrosion resistance of the alloy steel changes suddenly, where n is 1, 2, 3..., considering the alloy cost and the difficulty of heat treatment, the chromium content of 12.5%, 25%, 37.5%, etc. can be selected according to actual needs; in addition, experiments show that adding nickel and manganese to chromium stainless steel can greatly improve the corrosion resistance of chromium stainless steel in acidic environment, and adding molybdenum and copper to stainless steel can expand the passivation medium range of stainless steel and also make it have better corrosion resistance.

[0009] Furthermore, the input end of the pressurized water pump is fixedly connected to the outer surface of the dust removal box, the outer surface of the pressurized water pump is fixedly connected to a water pump fixing block, the water pump fixing block is fixedly connected to the outer surface of the dust removal box, the three nozzles all penetrate the dust removal box and extend to the interior of the dust removal box, the three nozzles are fixedly connected to the dust removal box, the nozzles spray water on the exhaust gas generated by the casting electric furnace, and absorb the dust in the exhaust gas.

[0010] Furthermore, the outer surface of the dust removal box is fixedly connected to a water supply hopper, the bottom surface of the dust removal box is fixedly connected to a drainage hopper, and the outer surface of the dust removal box is fixedly connected to an air intake pipe, and the exhaust gas generated by the casting electric furnace enters the dust removal box through the air intake pipe.

[0011] Furthermore, the purification box is fixedly connected to the outer surface of the dust removal box, and the inner wall of the purification box is slidably connected with an activated carbon adsorption plate. The upper surface of the activated carbon adsorption plate is provided with limiting holes. The activated carbon adsorption plate can adsorb various harmful gases with odors such as formaldehyde, phenols, amines, etc. in the exhaust gas.

[0012] Furthermore, a spring is fixedly connected to the upper surface of the purification box, a disc is fixedly connected to the top of the spring, a limiting rod is fixedly connected to the bottom surface of the disc, the limiting rod passes through the purification box and extends to the interior of the purification box, the limiting rod is slidably connected to the purification box, the limiting rod is adapted to the limiting hole, and the limiting rod is inserted into the limiting hole to limit the activated carbon adsorption plate.

[0013] Furthermore, a fan fixing block is fixedly connected to a side of the purification box away from the dust removal box, an upper surface of the fan fixing block is fixedly connected to an exhaust fan, an input end of the exhaust fan is fixedly connected to the outer surface of the purification box, and the exhaust fan can extract exhaust gas in the purification box and discharge it to the external space.

[0014] Furthermore, two symmetrical fixing rods are fixedly connected to the bottom surface of the purification box, and one end of the two fixing rods away from the purification box is fixedly connected to the outer surface of the dust removal box, and the fixing rods support and fix the purification box.

[0015] Furthermore, a plurality of mounting holes are evenly arranged on the activated carbon adsorption plate, an activated carbon adsorption ball is arranged in each of the mounting holes, each activated carbon adsorption ball is connected with a thin pull rope, and all the thin pull ropes are gathered into a thick pull rope. When the activated carbon adsorption ball needs to be replaced or treated after absorbing a large amount of harmful gas, the staff pulls the thick pull rope, thereby pulling all the activated carbon adsorption balls out of the mounting hole at the same time through the thin pull rope, which facilitates the replacement or chemical treatment of the activated carbon adsorption balls, shortens the time and improves efficiency.

[0016] Furthermore, an elastic pad is provided on the circumferential inner wall of the mounting hole on the activated carbon adsorption plate. The thickness of the elastic pad matches the size of the activated carbon adsorption ball and is used to compress and fix the activated carbon adsorption ball. The elastic pad is a hydrophilic material. When the staff puts the activated carbon adsorption ball into the mounting hole, the activated carbon adsorption ball squeezes the elastic pad, so that the activated carbon adsorption ball is pressed and fixed in the mounting hole by the elastic pad and does not fall. When the staff pulls the activated carbon adsorption ball out of the mounting hole through the thick and thin pull ropes, the elastic pad is restored. At the same time, since the elastic pad is a hydrophilic material, when dust passes through the activated carbon adsorption plate, it can not only absorb harmful gases through the activated carbon adsorption ball, but also absorb moisture in the dust through the elastic pad, thereby improving the absorption efficiency of the activated carbon adsorption ball and preventing moisture from affecting the exhaust fan.

[0017] Furthermore, a sandwich plate is slidably arranged inside the first filter plate, a strip groove is arranged on the sliding frame for the sandwich plate to slide out of the first filter plate, the sandwich plate is provided with a filter hole that completely overlaps with the first filter plate, the area at the edge of the filter hole on the sandwich plate is a cutting edge, and a handle is arranged at the edge of the sandwich plate. Since a large amount of dust and impurities are accumulated in the filter hole of the first filter plate after long-term use, and since the dust and impurities carry moisture, it is easy to form a paste-like or block-like dust mass, which is more likely to cause the filter hole to be blocked, at this time, the staff pulls the handle on the sandwich plate to make the sandwich plate slide back and forth inside the first filter plate, and the cutting edge on the sandwich plate will cut and cut the dust mass blocked in the filter hole of the first filter plate, so that the dust mass is cut into small pieces, and then cooperate with the air blowing effect of the air blowing device, so that the dust and impurities are more easily discharged from the filter hole of the first filter plate.

[0018] Compared with the prior art, the integrated dust removal and purification device has the following beneficial effects:

[0019] 1. The present invention can spray water to remove dust from the exhaust gas generated by the casting electric furnace through the arrangement of the dust removal box and the dust removal mechanism. The dust in the water has weaker adhesion than the dust in the gas, which prevents the dust in the exhaust gas from being easily attached to the second filter plate, thereby reducing the cleaning and maintenance frequency of the second filter plate and facilitating use.

[0020] 2. The present invention sets a purification mechanism. After the waste gas generated by the casting electric furnace is sprayed with water for dust removal, the exhaust fan is controlled to operate to extract the waste gas in the dust removal box. When the waste gas passes through the activated carbon adsorption plate, the activated carbon adsorption plate will adsorb formaldehyde, phenols, amines and other harmful gases with peculiar smell in the waste gas, thereby purifying the waste gas. When the activated carbon adsorption plate is saturated with adsorption, the disc is pulled to pull the limit rod out of the limit hole, so that the activated carbon adsorption plate can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the separate structure of the purification box and the activated carbon adsorption plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the dust removal box of the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the connecting frame and the nozzle of the present invention;

[0025] Figure 5 This is a graph showing the relationship between the corrosion resistance of the alloy and the chromium content in the chromium stainless steel of the present invention.

[0026] In the figure: 1. dust removal box; 2. dust removal mechanism; 21. pressurized water pump; 22. connecting pipe; 23. connecting frame; 24. nozzle; 25. sliding frame; 26. first filter plate; 27. second filter plate; 28. water pump fixing block; 29. ​​water adding bucket; 210. drainage bucket; 211. air inlet pipe; 3. purification mechanism; 31. purification box; 32. activated carbon adsorption plate; 33. limiting hole; 34. spring; 35. disc; 36. limiting rod; 37. fan fixing block; 38. exhaust fan; 39. fixing rod. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] This embodiment provides an integrated dust removal and purification device for a casting furnace, which can spray water to remove dust from the exhaust gas generated by the casting furnace, thereby reducing the cleaning and maintenance frequency of the second filter plate 27 and facilitating use.

[0029] See also Figure 1 , Figure 3 and Figure 4 A dust removal and purification integrated device for a casting electric furnace comprises a dust removal box 1, the bottom surface of the dust removal box 1 is provided with supporting legs, a dust removal mechanism 2 is provided outside the dust removal box 1, the dust removal mechanism 2 comprises a pressurized water pump 21, the output end of the pressurized water pump 21 is fixedly connected with a connecting pipe 22, and the end of the connecting pipe 22 away from the pressurized water pump 21 is fixedly connected with a connecting frame 23, the pressurized water pump 21 draws water out of the dust removal box 1 and injects it into the connecting frame 23 through the connecting pipe 22, the connecting frame 23 is fixedly connected to the upper surface of the dust removal box 1, and three nozzles 24 are installed on the bottom surface of the connecting frame 23, and the water spraying range of the nozzle 24 is fan-shaped, which can fully cover the exhaust gas.

[0030] A sliding frame 25 is slidably connected to the inner wall of the dust removal box 1, and a sealing gasket is arranged between the sliding frame 25 and the dust removal box 1 to prevent the exhaust gas from leaking from the gap between the sliding frame 25 and the dust removal box 1. A locking block can be arranged on the sliding frame 25 to fix the sliding frame 25. A first filter plate 26 is fixedly connected to the inner wall of the sliding frame 25. The first filter plate 26 can filter the dust in the water. When there is a lot of dust on the first filter plate 26, the dust on the first filter plate 26 can be cleaned. A second filter plate 27 is fixedly connected to the inner wall of the dust removal box 1. The second filter plate 27 can filter the remaining dust in the exhaust gas. A sealing door can be arranged on the dust removal box 1 to facilitate the cleaning and maintenance of the second filter plate 27 to prevent the dust from clogging the second filter plate 27.

[0031] An annular crushing blade is provided in the filter hole of the second filter plate 27, and the crushing blade is detachably provided; a rotating frame is provided at the bottom of the connecting frame, and the nozzles are fixedly mounted on the rotating frame, and a motor for driving the rotating frame to rotate is provided inside the connecting frame; it also includes an air blowing device, which is arranged inside the dust removal box and above the first filter plate, and the air blowing device includes an air pump, a main air pipe, a bronchial pipe and an air blowing driving mechanism, the air pump is arranged on the outer wall of the dust removal box, and the air pump is connected to the bronchial pipe through the main air pipe, and the main air pipe is a retractable hose, and the bronchial pipe includes a plurality of first bronchi that blow air vertically downward and a plurality of second bronchi that blow air horizontally to the left, the first bronchial pipe is blowing air directly to the first filter plate, and the second bronchial pipe is blowing air directly to the second filter plate, and the air blowing driving mechanism includes a servo motor and a screw rod, the screw rod is threadedly connected to the mounting seat of the bronchial pipe, and is used to drive the bronchial pipe to move along the front and rear directions of the dust removal box.

[0032] The first filter plate 26 and the second filter plate 27 are made of chromium stainless steel, wherein the weight percentage of chromium is Where n is 1, 2, 3, etc., and the weight percentage of nickel is 8-10%, the weight percentage of manganese is 6-8%, the weight percentage of molybdenum is 3-5%, the weight percentage of copper is 1-3%, and the rest is iron; since the waste gas generated in industrial sites and factory workshops contains acidic and alkaline corrosive gases, some of which dissolve in water to form corrosive liquids, when the corrosive gases and corrosive liquids pass through the first filter plate 26 and the second filter plate 27, the first filter plate 26 and the second filter plate 27 will be Corrosion, in the long run, the filter holes of the filter plate will be deformed, which is not conducive to the filtration and adsorption of dust and impurities; experiments have shown that after adding chromium to the iron-based solid solution, the electrode potential can be increased. When the chromium content reaches a certain level, this increase suddenly occurs. Correspondingly, the corrosion resistance of the alloy steel in corrosive environments such as industrial waste gas and acidic and alkaline solutions is improved. From the experimental results, when the atomic percentage of chromium content is 12.5%, 25%, and 37.5%, the corrosion rate of the alloy steel is significantly reduced, that is, when the atomic percentage of chromium is When , the corrosion resistance of the alloy steel changes suddenly, where n is 1, 2, 3..., considering the alloy cost and the difficulty of heat treatment, the chromium content of 12.5%, 25%, 37.5%, etc. can be selected according to actual needs; in addition, experiments show that adding nickel and manganese to chromium stainless steel can greatly improve the corrosion resistance of chromium stainless steel in acidic environment, and adding molybdenum and copper to stainless steel can expand the passivation medium range of stainless steel and also make it have better corrosion resistance.

[0033] The input end of the pressurized water pump 21 is fixedly connected to the outer surface of the dust removal box 1, and the outer surface of the pressurized water pump 21 is fixedly connected with a water pump fixing block 28. The water pump fixing block 28 is fixedly connected to the outer surface of the dust removal box 1, and the water pump fixing block 28 fixes the pressurized water pump 21. The three nozzles 24 all penetrate the dust removal box 1 and extend to the interior of the dust removal box 1. The three nozzles 24 are fixedly connected to the dust removal box 1. The nozzles 24 spray water on the exhaust gas generated by the casting electric furnace and absorb the dust in the exhaust gas.

[0034] The outer surface of the dust removal box 1 is fixedly connected to a water adding hopper 29, and a sealing cover is provided on the water adding hopper 29. Water can be added to the dust removal box 1 through the water adding hopper 29. The bottom surface of the dust removal box 1 is fixedly connected to a drainage hopper 210. The water in the dust removal box 1 can be discharged through the drainage hopper 210, so that the water in the dust removal box 1 can be replaced easily. The outer surface of the dust removal box 1 is fixedly connected to an air intake pipe 211, and the exhaust gas generated by the casting electric furnace enters the dust removal box 1 through the air intake pipe 211.

[0035] See also Figure 1 and Figure 2 A purification mechanism 3 is arranged outside the dust removal box 1, and the purification mechanism 3 includes a purification box 31, which is fixedly connected to the outer surface of the dust removal box 1, and an activated carbon adsorption plate 32 is slidably connected to the inner wall of the purification box 31, and the activated carbon adsorption plate 32 is provided with ventilation holes, and a sealing gasket is arranged between the purification box 31 and the activated carbon adsorption plate 32 to prevent the exhaust gas from leaking from the gap between the purification box 31 and the activated carbon adsorption plate 32. A limiting hole 33 is provided on the upper surface of the activated carbon adsorption plate 32, and the activated carbon adsorption plate 32 can adsorb various harmful gases with odors such as formaldehyde, phenols, and amines in the exhaust gas.

[0036] A spring 34 is fixedly connected to the upper surface of the purification box 31. When the limit rod 36 is inserted into the limit hole 33, the spring 34 is in a normal state. When the limit rod 36 is pulled out of the limit hole 33, the spring 34 will be stretched. The spring 34 can prevent the limit rod 36 from being unintentionally separated from the limit hole 33. A disc 35 is fixedly connected to the top of the spring 34. The bottom surface of the disc 35 is fixedly connected to the limit rod 36. The limit rod 36 passes through the purification box 31 and extends to the interior of the purification box 31. The limit rod 36 is slidably connected to the purification box 31. The limit rod 36 is adapted to the limit hole 33. The limit rod 36 is inserted into the limit hole 33 to limit the activated carbon adsorption plate 32.

[0037] A fan fixing block 37 is fixedly connected to the side of the purification box 31 away from the dust removal box 1. The fan fixing block 37 supports and fixes the exhaust fan 38. The upper surface of the fan fixing block 37 is fixedly connected to the exhaust fan 38. The input end of the exhaust fan 38 is fixedly connected to the outer surface of the purification box 31. The exhaust fan 38 can extract the exhaust gas in the purification box 31 and discharge it to the external space.

[0038] Two symmetrical fixing rods 39 are fixedly connected to the bottom surface of the purification box 31. One end of the two fixing rods 39 away from the purification box 31 is fixedly connected to the outer surface of the dust removal box 1. The fixing rods 39 support and fix the purification box 31, making the purification box 31 more stable.

[0039] In another embodiment, a plurality of mounting holes are evenly arranged on the activated carbon adsorption plate 32, and an activated carbon adsorption ball is arranged in each of the mounting holes. A thin pull rope is connected to each activated carbon adsorption ball, and all the thin pull ropes are gathered into a thick pull rope. When the activated carbon adsorption ball needs to be replaced or processed after absorbing a large amount of harmful gas, the staff pulls the thick pull rope, thereby pulling all the activated carbon adsorption balls out of the mounting hole at the same time through the thin pull rope, which facilitates the replacement or chemical treatment of the activated carbon adsorption balls, shortens the time and improves efficiency.

[0040] In another embodiment, an elastic pad is provided on the circumferential inner wall of the mounting hole on the activated carbon adsorption plate 32, the thickness of the elastic pad matches the size of the activated carbon adsorption ball and is used to compress and fix the activated carbon adsorption ball, and the elastic pad is a hydrophilic material. When the staff puts the activated carbon adsorption ball into the mounting hole, the activated carbon adsorption ball squeezes the elastic pad, so that the activated carbon adsorption ball is pressed and fixed in the mounting hole by the elastic pad so as not to fall off, and when the staff pulls the activated carbon adsorption ball out of the mounting hole through the thick and thin pull ropes, the elastic pad is restored; at the same time, because the elastic pad is a hydrophilic material, when dust passes through the activated carbon adsorption plate 32, it can not only absorb harmful gases through the activated carbon adsorption ball, but also absorb moisture in the dust through the elastic pad, thereby improving the absorption efficiency of the activated carbon adsorption ball and preventing moisture from affecting the exhaust fan.

[0041] In another embodiment, a sandwich plate is slidably arranged inside the first filter plate 26, a strip groove is arranged on the sliding frame for the sandwich plate to slide out of the first filter plate 26, the sandwich plate is provided with a filter hole that completely overlaps with the first filter plate 26, the area at the edge of the filter hole on the sandwich plate is a cutting edge, and a handle is arranged on the edge of the sandwich plate. Since a large amount of dust and impurities are accumulated in the filter hole of the first filter plate 26 after long-term use, and since the dust and impurities carry moisture, it is easy to form a paste-like or block-like dust mass, which is more likely to cause the filter hole to be blocked, at this time, the staff pulls the handle on the sandwich plate to make the sandwich plate slide back and forth inside the first filter plate 26, and the cutting edge on the sandwich plate will cut and cut the dust mass blocked in the filter hole of the first filter plate 26, so that the dust mass is cut into small pieces, and then cooperate with the air blowing effect of the air blowing device, so that the dust and impurities are more easily discharged from the filter hole of the first filter plate 26.

[0042] Working principle: When in use, the exhaust gas generated by the casting electric furnace enters the dust removal box 1 through the air inlet pipe 211, and the pressurized water pump 21 is controlled to operate, the water in the dust removal box 1 is pumped out, and is injected into the connecting frame 23 through the connecting pipe 22, and sprayed into the exhaust gas by the nozzle 24. The dust in the exhaust gas will be adsorbed in the water and fall on the first filter plate 26. The first filter plate 26 filters the dust in the water, and the water flows downward for circulation and spraying. The remaining dust in the exhaust gas will be filtered through the second filter plate 27. The device can spray water to remove dust from the exhaust gas generated by the casting electric furnace, thereby reducing the frequency of cleaning and maintenance of the second filter plate 27, which is easy to use.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated dust removal and purification device for a casting electric furnace, comprising a dust removal box (1), characterized in that: A dust removal mechanism (2) is arranged outside the dust removal box (1), and the dust removal mechanism (2) comprises a pressurized water pump (21), an output end of the pressurized water pump (21) is fixedly connected to a connecting pipe (22), an end of the connecting pipe (22) away from the pressurized water pump (21) is fixedly connected to a connecting frame (23), the connecting frame (23) is fixedly connected to the upper surface of the dust removal box (1), and three nozzles (24) are installed on the bottom surface of the connecting frame (23), the inner wall of the dust removal box (1) is slidably connected to a sliding frame (25), and the inner wall of the sliding frame (25) is fixedly connected to a first filter plate (26), and the dust removal box ( The inner wall of the connecting frame is fixedly connected to a second filter plate (27); a purification mechanism (3) is arranged outside the dust removal box (1); the purification mechanism (3) includes a purification box (31); an annular crushing blade is arranged in the filter hole of the second filter plate (27); the crushing blade is detachably arranged; a rotating frame is arranged at the bottom of the connecting frame, the nozzles are fixedly mounted on the rotating frame, and a motor for driving the rotating frame to rotate is arranged inside the connecting frame; and an air blowing device is also included, the air blowing device is arranged inside the dust removal box and above the first filter plate, and the air blowing device includes an air pump, a main air pipe, a branch air pipe, and a motor for driving the branch air pipe to rotate. An air pipe and an air blowing drive mechanism, wherein the air pump is arranged on the outer wall of the dust removal box, the air pump is connected to the bronchus through the main air pipe, the main air pipe is a retractable hose, the bronchus includes a plurality of first bronchus blowing air vertically downward and a plurality of second bronchus blowing air horizontally to the left, the first bronchus blowing air directly toward the first filter plate, and the second bronchus blowing air directly toward the second filter plate, the air blowing drive mechanism includes a servo motor and a screw rod, the screw rod is threadedly connected to the mounting seat of the bronchus, and is used to drive the bronchus to move along the front and rear direction of the dust removal box; the purification box (31) is fixedly connected to the dust removal box (1) The outer surface of the purification box (31) is slidably connected to the inner wall of the purification box (31) with an activated carbon adsorption plate (32), and the upper surface of the activated carbon adsorption plate (32) is provided with a limiting hole (33); a plurality of mounting holes are evenly arranged on the activated carbon adsorption plate, and an activated carbon adsorption ball is arranged in each of the mounting holes, and a thin pull rope is connected to each activated carbon adsorption ball, and all the thin pull ropes are gathered into a thick pull rope; an elastic pad is arranged on the circumferential inner wall of the mounting hole on the activated carbon adsorption plate, the thickness of the elastic pad matches the size of the activated carbon adsorption ball and is used to compress and fix the activated carbon adsorption ball, and the elastic pad is a hydrophilic material.

2. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: The first filter plate (26) and the second filter plate (27) are made of chromium stainless steel, wherein the weight percentage of chromium is n, wherein n is 1, 2, 3 ..., and the weight percentage of nickel is 8-10%, the weight percentage of manganese is 6-8%, the weight percentage of molybdenum is 3-5%, the weight percentage of copper is 1-3%, and the rest is iron.

3. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: The input end of the pressurized water pump (21) is fixedly connected to the outer surface of the dust removal box (1); the outer surface of the pressurized water pump (21) is fixedly connected to a water pump fixing block (28); the water pump fixing block (28) is fixedly connected to the outer surface of the dust removal box (1); the three nozzles (24) all penetrate the dust removal box (1) and extend into the interior of the dust removal box (1); and the three nozzles (24) are all fixedly connected to the dust removal box (1).

4. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: The outer surface of the dust removal box (1) is fixedly connected to a water supply hopper (29), the bottom surface of the dust removal box (1) is fixedly connected to a drainage hopper (210), and the outer surface of the dust removal box (1) is fixedly connected to an air intake pipe (211).

5. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: A spring (34) is fixedly connected to the upper surface of the purification box (31), a disc (35) is fixedly connected to the top of the spring (34), a limit rod (36) is fixedly connected to the bottom surface of the disc (35), the limit rod (36) passes through the purification box (31) and extends to the interior of the purification box (31), the limit rod (36) is slidably connected to the purification box (31), and the limit rod (36) is adapted to the limit hole (33).

6. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: A fan fixing block (37) is fixedly connected to a side of the purification box (31) away from the dust removal box (1); an exhaust fan (38) is fixedly connected to the upper surface of the fan fixing block (37); and an input end of the exhaust fan (38) is fixedly connected to the outer surface of the purification box (31).

7. The integrated dust removal and purification device for a casting electric furnace according to claim 1, characterized in that: Two symmetrical fixing rods (39) are fixedly connected to the bottom surface of the purification box (31), and one end of the two fixing rods (39) away from the purification box (31) is fixedly connected to the outer surface of the dust removal box (1).

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