Fused magnesia furnace dust falling device

Abstract

The fused magnesite furnace dust falling device comprises a box body, the interior of the box body is divided into a cooling bin and a filtering bin, a ventilation opening is formed in the connecting face of the cooling bin and the filtering bin, a coiled pipe is installed in the cooling bin, and a water inlet of the coiled pipe penetrates through the box body and extends to the top of the outer side of the box body to be connected with a first water suction pump through a water way. A water outlet of the coiled pipe penetrates through the box body and extends to the top of the outer side of the box body, a water path is connected with a water storage tank, the water storage tank is connected with a first water suction pump through a pipeline, and a cleaning mechanism is mounted on the coiled pipe. Meanwhile, the cleaning mechanism is installed to prevent dust and waste residues from accumulating on the coiled pipe to affect the cooling effect, the filter bin filters and screens the cooled waste gas, the dust and waste residues in the waste gas are purified, and air pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust reduction of fused magnesia furnaces, in particular to a dust reduction device for fused magnesia furnaces. Background Art

[0002] As the key equipment for producing fused magnesia, the fused magnesia furnace will produce a large amount of waste slag and waste gas during the calcination process. As a high-quality refractory material, fused magnesia is widely used in the production of high-temperature electrical insulation materials, high-grade magnesia bricks, magnesia carbon bricks and amorphous refractory materials.

[0003] However, with the operation of the electric fused magnesia furnace, a large amount of waste gas containing dust and impurities will be generated, which will cause air pollution. At the same time, the waste gas generated by the electric fused magnesia furnace is generally high-temperature gas, and the high-temperature dust-containing gas may burn other subsequent accessories.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a dust reduction device for a fused magnesia furnace to solve the shortcomings of the prior art. Utility Model Content

[0005] The utility model aims to avoid the deficiencies of the prior art and provide a dust reduction device for an electric fused magnesia furnace. The dust reduction device for an electric fused magnesia furnace is provided by installing a cooling chamber and a filtering chamber in a box body. The serpentine pipe in the cooling chamber exchanges heat with an external water storage tank, and the waste gas rushing in is cooled by the serpentine pipe. At the same time, a cleaning mechanism is installed, and a driving cylinder drives a moving plate to move to prevent dust and waste residue from accumulating on the serpentine pipe and affecting the cooling effect. Water is sprayed by a rotating nozzle, and the waste gas after cooling is filtered and screened by a dust-blocking baffle and a water seepage screen plate in the filtering chamber, so as to purify dust and waste residue in the waste gas and avoid air pollution.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0007] Provided is a dust reduction device for an electric fused magnesia furnace, comprising a box body, wherein the inner part of the box body is divided into a cooling chamber and a filtering chamber, a vent is provided on the connecting surface between the cooling chamber and the filtering chamber, a serpentine pipe is installed in the cooling chamber, a water inlet of the serpentine pipe extends through the box body to the outer top water channel of the box body to be connected to a first water pump, a water outlet of the serpentine pipe extends through the box body to the outer top water channel of the box body to be connected to a water storage tank, the water storage tank is connected to a pipeline of the first water pump, and a cleaning mechanism is installed on the serpentine pipe.

[0008] Specifically, the filter bin includes a plurality of dust baffles, which are installed above the vents, with both ends of each dust baffle fixedly connected to the inner wall of the box body, a seepage screen plate is installed above the plurality of dust baffles, a rotating nozzle is installed at the top water inlet of the filter bin, a pull-out filter assembly is installed below the vent, a top pipe of the filter bin is connected to a water storage tank, a second water pump is installed on the outer top of the filter bin, a pipe on the lower inner wall of the box body of the pull-out filter assembly is connected to one end of the second water pump, and a pipe at the other end of the second water pump is connected to the water storage tank.

[0009] In detail, the cleaning mechanism includes a driving cylinder and two telescopic pillars. The driving cylinder passes through the top of the box. The two telescopic pillars are respectively installed on both sides of the driving cylinder. The top of each telescopic pillar is fixedly connected to the box. The bottom ends of the two telescopic pillars and the bottom ends of the driving cylinder are commonly connected to a movable plate. The first scraper is integrally formed on the four sides of the movable plate, and the second scraper is installed at the corresponding serpentine tubes on the movable plate.

[0010] In detail, the pull-out filter assembly includes a filter layer frame and multiple fixed pulleys, the multiple fixed pulleys are evenly installed on the inner side of the box, the filter layer frame is slidably connected to the fixed pulleys, the filter layer is installed in the filter layer frame, and a square groove is opened on the outer edge of the filter layer frame. The square groove is rotatably connected to a limit pin, and a limit block is integrally formed at one end of the limit pin close to the square groove.

[0011] To further explain, an air inlet is opened on the upper side of the cooling chamber, an air outlet is opened on the upper side of the filtering chamber, and valves are installed at the air inlet and the air outlet.

[0012] To further explain, the bottom of the cooling bin is funnel-shaped, a slag outlet is provided at the bottom of the cooling bin, and a valve is installed at the slag outlet.

[0013] To further explain, the first scraper is in a "V" shape, and the top surface diameter of the second scraper is larger than the bottom surface diameter to form a "trumpet" shape.

[0014] The utility model installs a cooling chamber and a filtering chamber in a box body. The cooling chamber cools the incoming exhaust gas. At the same time, a cleaning mechanism is installed to prevent dust and waste residue from accumulating on the serpentine pipe and affecting the cooling effect. The filtering chamber filters and screens the cooled exhaust gas to purify the dust and waste residue in the exhaust gas and avoid air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0016] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a dust reduction device for an electric fused magnesia furnace.

[0017] Figure 2The utility model is a structural schematic diagram of a pull-out filter assembly of a dust reduction device for an electric fused magnesia furnace.

[0018] Figure 3 It is an enlarged schematic diagram of point A of a dust reduction device for an electric fused magnesia furnace of the utility model.

[0019] from Figures 1 to 3 Including:

[0020] 1. Box body;

[0021] 2. Cooling chamber;

[0022] 3. Filter chamber;

[0023] 4. Ventilation openings;

[0024] 5. Serpentine tube;

[0025] 6. The first water pump;

[0026] 7. Water storage tank;

[0027] 8. Cleaning agencies;

[0028] 81. driving cylinder, 82. telescopic support, 83. moving plate, 84. first scraper, 85. second scraper;

[0029] 9. Pull-out filter assembly;

[0030] 91. filter layer frame, 92. fixed pulley, 93. filter layer, 94. square groove, 95. limit pin, 96. limit block;

[0031] 10. Dust baffle;

[0032] 11. Seepage screen plate;

[0033] 12. Second water pump;

[0034] 13. Air inlet;

[0035] 14. Exhaust port;

[0036] 15. Slag outlet;

[0037] 16. Rotating nozzle. DETAILED DESCRIPTION

[0038] The utility model is further described in conjunction with the following embodiments.

[0039] Example 1.

[0040] like Figure 1-3As shown, a dust reduction device for an electric fused magnesia furnace includes a box body 1. The interior of the box body 1 is divided into a cooling chamber 2 and a filtering chamber 3. The connecting surface of the cooling chamber 2 and the filtering chamber 3 is provided with a vent 4. A serpentine pipe 5 is installed in the cooling chamber 2. The water inlet of the serpentine pipe 5 extends through the box body 1 to the outer top water channel of the box body 1 to connect to a first water pump 6. The water outlet of the serpentine pipe 5 extends through the box body 1 to the outer top water channel of the box body 1 to connect to a water storage tank 7. The water storage tank 7 is connected to the first water pump 6 by a pipeline. A cleaning mechanism 8 is installed on the serpentine pipe 5.

[0041] The high-temperature exhaust gas is introduced into the cooling chamber 2, the first water pump 6 is turned on, and the water in the serpentine pipe 5 flows to transport the temperature out of the cooling chamber 2. The installed cleaning mechanism 8 enables the driving cylinder 81 to push the moving plate 83 to move, preventing dust and waste residue from accumulating on the serpentine pipe 5 and affecting the cooling effect.

[0042] like Figure 1 As shown, the filter bin 3 includes a plurality of dust baffles 10, and the plurality of dust baffles 10 are installed above the vent 4, and both ends of each dust baffle 10 are fixedly connected to the inner wall of the box body 1, and a seepage screen plate 11 is installed above the plurality of dust baffles 10, and a pull-out filter assembly 9 is installed below the vent 4, and the seepage screen plate 11 is a grid-shaped screen plate.

[0043] The cooled exhaust gas enters the filter chamber 3 through the vent 4. The dust baffle 10 is set obliquely. The exhaust gas first collides with the dust baffle 10 upward, and a part of the dust impurities are removed by the reaction force. The remaining exhaust gas continues to contact the water seepage screen plate 11 upward, and the remaining dust impurities are removed through direct contact between water and exhaust gas.

[0044] like Figure 1 As shown, the top pipe of the filter chamber 3 is connected to the water tank 7, a second water pump 12 is installed on the outer top of the filter chamber 3, the inner wall pipe of the lower box body 1 of the pull-out filter assembly 9 is connected to one end of the second water pump 12, and the other end of the second water pump 12 is connected to the water tank 7, and a rotating nozzle 16 is installed at the top water inlet of the filter chamber 3.

[0045] Water enters the rotating nozzle 16 through the pipeline and is then sprayed into the seepage screen plate 11. The waste water after dust filtration falls to the bottom and is filtered and precipitated. It can be pumped back to the water storage tank 7 through the second pumping pump 12 to avoid waste of water resources.

[0046] like Figure 1 As shown, the cleaning mechanism 8 includes a driving cylinder 81 and two telescopic struts 82. The driving cylinder 81 passes through the top of the box body 1. The two telescopic struts 82 are respectively installed on both sides of the driving cylinder 81. The top of each telescopic strut 82 is fixedly connected to the box body 1. The bottom ends of the two telescopic struts 82 and the bottom ends of the driving cylinder 81 are commonly connected to a moving plate 83. The first scraper plates 84 are integrally formed on the four sides of the moving plate 83. Second scrapers 85 are installed on the moving plate 83 at positions corresponding to the serpentine tubes 5.

[0047] When cleaning is required, the movable plate 83 is moved by driving the cylinder 81, and the telescopic pillars 82 on both sides play a supporting and limiting role. The movable plate 83 moves so that the first scraper 84 and the second scraper 85 on the movable plate 83 clean the inner wall of the serpentine tube 5 and the cooling bin 2 to avoid affecting the cooling effect of the serpentine tube 5.

[0048] The first scraper 84 is in a "V" shape, which reduces the force area of ​​the first scraper 84 on the cooling bin 2 and enhances the cleaning effect. The top diameter of the second scraper 85 is larger than the bottom diameter and is in a "trumpet" shape. The inclined surface facilitates cleaning of impurities on the outside of the serpentine tube 5.

[0049] like Figure 2 and 3 As shown, the pull-out filter assembly 9 includes a filter layer frame 91 and a plurality of fixed pulleys 92, and the plurality of fixed pulleys 92 are evenly installed on the inner side of the box body 1, the filter layer frame 91 is slidably connected to the fixed pulleys 92, a filter layer 93 is installed in the filter layer frame 91, and a square groove 94 is provided on the outer edge of the filter layer frame 91, the square groove 94 is rotatably connected to a limit pin 95, and a limit block 96 is integrally formed at one end of the limit pin 95 close to the square groove 94.

[0050] The limit pin 95 serves to limit the pull-out filter assembly 9. The limit block 96 can be moved by rotating the limit pin 95 for limiting or retracting. The bottom surface of the filter layer frame 91 is slidably arranged with multiple fixed pulleys 92, so that the filter layer frame 91 can be moved, thereby facilitating the staff to clean or replace the filter layer 93 and avoiding blockage that affects the filtering effect.

[0051] like Figure 1 As shown, an air inlet 13 is opened on the upper side of the cooling bin 2, an air outlet 14 is opened on the upper side of the filtering bin 3, the bottom of the cooling bin 2 is funnel-shaped, and a slag outlet 15 is opened at the bottom of the cooling bin 2. Valves are installed at the air inlet 13, the air outlet 14 and the slag outlet 15. The valves are any common existing valve technologies and will not be described in detail.

[0052] The utility model installs a cooling bin 2 and a filtering bin 3 in a box body 1, and the serpentine pipe 5 in the cooling bin 2 exchanges heat with an external water storage tank 7, and cools the incoming waste gas through the serpentine pipe 5. At the same time, a cleaning mechanism 8 is installed, and a cylinder 81 is driven to push a movable plate 83 to move, so that a first scraper 84 and a second scraper 85 on the movable plate 83 clean the inner wall of the serpentine pipe 5 and the cooling bin 2 to prevent dust and waste residue from accumulating on the serpentine pipe 5 and affecting the cooling effect. Water is sprayed by a rotating nozzle 16, and the cooled waste gas is filtered through a dust-blocking baffle 10 and a water seepage screen plate 11 in the filtering bin 3, so as to purify dust and waste residue in the waste gas and avoid air pollution.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A dust suppression device for a fused magnesia furnace, characterized in that: It comprises a box body, the inner part of which is a cooling chamber and a filtering chamber, a vent is provided on the connection surface between the cooling chamber and the filtering chamber, a serpentine is installed in the cooling chamber, a water inlet of the serpentine passes through the box body and extends to the outer top waterway of the box body to connect to a first water pump, a water outlet of the serpentine passes through the box body and extends to the outer top waterway of the box body to connect to a water storage tank, the water storage tank is connected to the first water pump pipeline, and a cleaning mechanism is installed on the serpentine; The filter bin includes a plurality of dust baffles, which are installed above the vents, with both ends of each of the dust baffles fixedly connected to the inner wall of the box body, a seepage screen plate is installed above the plurality of dust baffles, a rotating nozzle is installed at the top water inlet of the filter bin, a pull-out filter assembly is installed below the vent, the top pipe of the filter bin is connected to the water storage tank, a second water pump is installed on the outer top of the filter bin, the lower inner wall pipe of the box body of the pull-out filter assembly is connected to one end of the second water pump, and the other end of the second water pump is connected to the water storage tank.

2. A dust reduction device for a fused magnesia furnace according to claim 1, characterized in that: The cleaning mechanism includes a driving cylinder and two telescopic struts, the driving cylinder passes through the top of the box, the two telescopic struts are respectively installed on both sides of the driving cylinder, the top of each telescopic strut is fixedly connected to the box, the bottom ends of the two telescopic struts and the bottom end of the driving cylinder are commonly connected to a moving plate, the first scrapers are integrally formed on the four sides of the moving plate, and second scrapers are installed on the moving plate corresponding to the serpentine tube.

3. The dust reduction device for a fused magnesia furnace according to claim 1, characterized in that: The pull-out filter assembly includes a filter layer frame and a plurality of fixed pulleys, wherein the plurality of fixed pulleys are evenly mounted on the inner side of the box body, the filter layer frame is slidably connected to the fixed pulleys, a filter layer is mounted in the filter layer frame, a square groove is provided on the outer edge of the filter layer frame, the square groove is rotatably connected to a limit pin, and a limit block is integrally formed with one end of the limit pin close to the square groove.

4. The dust reduction device for a fused magnesia furnace according to claim 1, characterized in that: An air inlet is provided on the upper side of the cooling bin, and an air outlet is provided on the upper side of the filtering bin. Valves are installed at the air inlet and the air outlet.

5. The dust reduction device for a fused magnesia furnace according to claim 1, characterized in that: The bottom of the cooling bin is funnel-shaped, and a slag outlet is provided at the bottom of the cooling bin, and a valve is installed at the slag outlet.

6. The dust reduction device for a fused magnesia furnace according to claim 2, characterized in that: The first scraper is in a "V" shape, and the top surface diameter of the second scraper is larger than the bottom surface diameter and is in a "trumpet" shape.

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