Environment-friendly fused magnesia furnace

Abstract

The utility model discloses an environment-friendly fused magnesite furnace, which relates to the technical field of fused magnesite furnaces and comprises a fused magnesite furnace body, a smoke outlet of the fused magnesite furnace body is communicated and connected with a first shell, and the side wall of the first shell is communicated with a first ventilation pipe. The other end of the first ventilation pipe is connected with a second shell in a communicating mode, the second shell is connected with a second ventilation pipe in a communicating mode, and the second ventilation pipe is connected with an external air inducing device. The driving assembly drives the cooling water pipes to rotate, the cooling water pipes cool waste gas, filter cloth is prevented from being burnt out due to the fact that the temperature of the waste gas is too high when the waste gas is filtered, and the second motor can drive the filter cloth to rotate, so that the effective use area of the filter cloth is increased; compressed air blown out of the air outlet pipes can blow off dust on the filter cloth, the filter cloth does not need to be cleaned manually, time and labor are saved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fused magnesia furnaces, in particular to an environmentally friendly fused magnesia furnace. Background Art

[0002] Fused magnesia is a general term for the products of magnesia raw materials such as magnesia that have been sintered after high-temperature treatment to reach the degree of sintering. Magnesia made from natural magnesia as raw material by a single calcination or two-step calcination process using high-temperature equipment such as vertical kilns and rotary kilns is called sintered magnesia. Magnesia made from magnesia and other raw materials that have been smelted in an electric arc furnace to a molten state and then cooled is called fused magnesia. Magnesia needs to be heat treated in a fused magnesia furnace during processing.

[0003] The fused magnesia furnace will generate waste gas when in use. The waste gas will carry a lot of dust when discharged. In order not to pollute the environment, it is necessary to use a filter component to filter the waste gas. Since the temperature of the waste gas is too high, it is easy to burn filter components such as cloth bags and filter cloths, causing damage to the equipment and affecting the waste gas treatment effect. In addition, the filter components are prone to adhere to a lot of dust after being used for a period of time, and usually need to be cleaned manually. Manual cleaning is time-consuming and labor-intensive, and the work efficiency is low. Therefore, an environmentally friendly fused magnesia furnace needs to be developed urgently. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides an environmentally friendly electric fused magnesia furnace, which drives multiple cooling water pipes to rotate through a driving component, and the multiple cooling water pipes cool the exhaust gas to prevent the filter cloth from being burned due to excessive temperature during exhaust gas filtration. The second motor can drive the filter cloth to rotate, thereby increasing the effective use area of ​​the filter cloth. The compressed air blown out from the multiple air outlet pipes can blow off the dust on the filter cloth. There is no need to manually clean the filter cloth, which saves time and effort and improves the cleaning efficiency.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an environmentally friendly electric fused magnesia furnace, including an electric fused magnesia furnace body, the smoke exhaust port of the electric fused magnesia furnace body is connected to a first shell, a first ventilation pipe is connected on the side wall of the first shell, the other end of the first ventilation pipe is connected to a second shell, the second shell is connected to a second ventilation pipe, the second ventilation pipe is connected to an external air induced device, the top wall and bottom wall of the first shell are respectively penetrated by a water outlet pipe and a water inlet pipe, the ends of the water outlet pipe and the water inlet pipe located in the first shell are respectively connected to rotating joints, a pair of ends on opposite sides of the rotating joints are connected to a pair of water distribution plates, and the pair of water distribution plates are connected between A plurality of cooling water pipes are provided, a driving assembly is provided on the first shell, and the driving assembly can drive the plurality of cooling water pipes to rotate, a second motor is provided at the bottom of the second shell, an output end of the second motor passes through the bottom wall of the second shell and is connected with a first connecting plate, a plurality of connecting rods are provided on the first connecting plate, a second connecting plate is provided on the top of the plurality of connecting rods, a filter cloth is provided between the first connecting plate and the second connecting plate, a through hole is opened at the center position of the second connecting plate, a first air inlet pipe is passed through and connected with the top of the second shell, the first air inlet pipe passes through the through hole and is connected with the second air inlet pipe, and a plurality of air outlet pipes are vertically provided on a side of the second air inlet pipe close to the filter cloth.

[0006] Preferably, a first limiting ring is arranged on the top of the second connecting plate, a groove is provided on the inner wall of the top of the second shell, and the first limiting ring is rotatably arranged in the groove.

[0007] Preferably, the driving assembly includes a first motor, a gear and a ring gear. The first motor is arranged on the top of the first shell, and the output end of the first motor passes through the top wall of the first shell and is connected to the gear. The ring gear is arranged on the side wall of the upper water diversion plate, and the gear is meshingly connected with the ring gear.

[0008] Preferably, a limiting plate is provided on the inner wall of the first shell, a second limiting ring is provided on the limiting plate, the upper water dividing plate is rotatably provided in the second limiting ring, a plurality of arc grooves are provided at the bottom of the upper water dividing plate, and a plurality of balls are provided between the upper water dividing plate and the limiting plate and rollingly provided in the plurality of arc grooves.

[0009] Preferably, a plurality of slag discharge pipes are respectively provided at the bottom of the first shell and the second shell, and each of the slag discharge pipes is provided with a valve.

[0010] Preferably, inspection doors are openably and closably provided on the side walls of the first shell and the second shell respectively.

[0011] The utility model provides an environmentally friendly fused magnesia furnace, which has the following beneficial effects:

[0012] 1. The utility model drives multiple cooling water pipes to rotate through a driving component, and the multiple cooling water pipes cool down the exhaust gas to prevent the filter cloth from being burned due to excessive temperature during the filtration of the exhaust gas. The second motor can drive the filter cloth to rotate, thereby increasing the effective use area of ​​the filter cloth. The compressed air blown out from the multiple air outlet pipes can blow off the dust on the filter cloth, and there is no need to manually clean the filter cloth, which saves time and effort and improves the cleaning efficiency.

[0013] 2. The bottom of the first shell and the second shell of the utility model are respectively provided with a plurality of slag discharge pipes, each of which is provided with a valve. The valve on the slag discharge pipe can be opened to discharge the dust in the first shell or the second shell to the outside; the side walls of the first shell and the second shell are respectively provided with an openable and closable inspection door, which can be opened to inspect and clean the first shell or the second shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 Enlarged view of part A;

[0016] Figure 3 For this utility model Figure 1 Enlarged view of part B;

[0017] Figure 4 It is a top cross-sectional view of the second shell of the utility model.

[0018] In the figure: 1. fused magnesia furnace body; 2. first shell; 3. second shell; 3-1. groove; 4. water outlet pipe; 5. water inlet pipe; 6. rotary joint; 7. water distribution plate; 8. first connecting plate; 9. cooling water pipe; 10. first motor; 11. gear; 12. gear ring; 13. limit plate; 14. second connecting plate; 14-1. first limit ring; 15. connecting rod; 16. filter cloth; 17. second motor; 18. first air inlet pipe; 19. second air inlet pipe; 20. air outlet pipe; 21. slag discharge pipe; 22. valve; 23. first ventilation pipe; 24. second ventilation pipe; 25. second limit ring; 26. ball bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-4 As shown, an environmentally friendly fused magnesia furnace comprises a fused magnesia furnace body 1, the smoke exhaust port of the fused magnesia furnace body 1 is connected to a first shell 2, a first ventilation pipe 23 is connected to the side wall of the first shell 2, the other end of the first ventilation pipe 23 is connected to a second shell 3, the second shell 3 is connected to a second ventilation pipe 24, the second ventilation pipe 24 is connected to an external air induction device, the top wall and the bottom wall of the first shell 2 are respectively penetrated by a water outlet pipe 4 and a water inlet pipe 5, the ends of the water outlet pipe 4 and the water inlet pipe 5 located in the first shell 2 are respectively connected to a rotating joint 6, and a pair of ends of the opposite sides of the rotating joint 6 are connected to a pair of split A pair of the water distribution plates 7 are connected to each other and are provided with a plurality of cooling water pipes 9. A driving assembly is provided on the first shell 2, and the driving assembly can drive the plurality of cooling water pipes 9 to rotate. A second motor 17 is provided at the bottom of the second shell 3. The output end of the second motor 17 passes through the bottom wall of the second shell 3 and is connected to a first connecting plate 8. A plurality of connecting rods 15 are provided on the first connecting plate 8. A second connecting plate 14 is provided on the top of the plurality of connecting rods 15. A filter cloth 16 is provided between the first connecting plate 8 and the second connecting plate 14. A through hole is provided at the center of the second connecting plate 14. The top of the second shell 3 passes through the first connecting plate 8 and is connected to the second connecting plate 14. Inlet pipe 18, the first air inlet pipe 18 passes through the through hole and is connected to the second air inlet pipe 19, and a plurality of air outlet pipes 20 are vertically arranged on the side of the second air inlet pipe 19 close to the filter cloth 16; a first limiting ring 14-1 is arranged on the top of the second connecting plate 14, and a groove 3-1 is opened on the inner wall of the top of the second shell 3, and the first limiting ring 14-1 is rotatably arranged in the groove 3-1; the driving assembly includes a first motor 10, a gear 11 and a ring gear 12, the first motor 10 is arranged on the top of the first shell 2, the output end of the first motor 10 passes through the top wall of the first shell 2 and is connected to the gear 11, and the ring gear 12 is arranged on the top On the side wall of the water-dividing plate 7, the gear 11 is meshed and connected with the gear ring 12; a limit plate 13 is arranged on the inner wall of the first shell 2, and a second limit ring 25 is arranged on the limit plate 13; the upper water-dividing plate 7 is rotatably arranged in the second limit ring 25, and a plurality of arc grooves are provided at the bottom of the upper water-dividing plate 7, and a plurality of balls 26 are rollingly arranged between the upper water-dividing plate 7 and the limit plate 13 and in the plurality of arc grooves; a plurality of slag discharge pipes 21 are respectively arranged at the bottom of the first shell 2 and the second shell 3, and a valve 22 is arranged on each of the slag discharge pipes 21; and inspection doors which can be opened and closed are respectively arranged on the side walls of the first shell 2 and the second shell 3.

[0021] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0022] In the present invention, the first motor 10 and the second motor 17 are both connected to an external electric control system through wires. The above devices and connection methods are all prior art and will not be described in detail here.

[0023] According to the instruction manual Figure 1-4 It can be seen that when the utility model is in use, the water inlet pipe 5 and the water outlet pipe 4 at the top of the first shell 2 are respectively connected to the water supply end and the return end of the external circulating water supply system, so that the external circulating water supply system injects cooling water into the water inlet pipe 5, and the cooling water flows into the water distribution plate 7 below through the rotating joint 6 below, and then flows into the water distribution plate 7 above through multiple cooling water pipes 9, and finally flows out through the rotating joint 6 and the water outlet pipe 4 above; the air induction device (such as an induced draft fan) connected to the second ventilation pipe 24 is started, and the air induction device vents the electric fused magnesia furnace body 1 The generated exhaust gas is sucked into the first shell 2, and the exhaust gas flows into the second shell 3 through the first ventilation pipe 23 arranged between the first shell 2 and the second shell 3, and is finally discharged from the second ventilation pipe 24; when the exhaust gas flows in the first shell 2, the cooling water pipe 9 cools the exhaust gas, and the driving component drives the multiple cooling water pipes 9 to rotate, so that the multiple cooling water pipes 9 exchange heat evenly. When the exhaust gas flows into the second shell 3, the second motor 17 arranged at the bottom of the second shell 3 is started, and the output end of the second motor 17 drives the connected first connecting plate 8 to rotate, and the first connecting plate 8 is connected to the first connecting plate 8. The connecting plate 8 drives the plurality of connecting rods 15 to rotate, and the plurality of connecting rods 15 drives the second connecting plate 14 to rotate, and the first connecting plate 8 and the second connecting plate 14 drive the filter cloth 16 to rotate, so that the filter cloth 16 can continuously rotate when filtering the exhaust gas, thereby increasing the effective filtering area of ​​the filter cloth 16, and the first air inlet pipe 18 arranged on the top wall of the second shell 3 is connected to an external air supply device. When a lot of dust is accumulated on the filter cloth 16, the operation of the air induction device is stopped, and the external air supply device is started, and the compressed air flows from the first air inlet pipe 18 to the second air inlet pipe 19, and then from The multiple air outlet pipes 20 on the second air inlet pipe 19 blow out to clean the dust on the filter cloth 16; the utility model drives the multiple cooling water pipes 9 to rotate through the driving component, and the multiple cooling water pipes 9 cool the exhaust gas to prevent the filter cloth 16 from being burned due to excessive temperature during the exhaust gas filtering. The second motor 17 can drive the filter cloth 16 to rotate, thereby increasing the effective use area of ​​the filter cloth 16. The compressed air blown out from the multiple air outlet pipes 20 can blow off the dust on the filter cloth 16, and there is no need to manually clean the filter cloth 16, which saves time and effort and improves the cleaning efficiency.

[0024] There is a possible implementation. A first limiting ring 14-1 is provided on the top of the second connecting plate 14. A groove 3-1 is provided on the inner wall at the top of the second shell 3. The first limiting ring 14-1 is rotatably set in the groove 3-1. The groove 3-1 limits the first limiting ring 14-1 to prevent the second motor 17 from driving the first connecting plate 8, multiple connecting rods 15, the second connecting plate 14 and the filter cloth 16 to shake when rotating.

[0025] There is a possible implementation, the driving assembly includes a first motor 10, a gear 11 and a ring gear 12, the first motor 10 is arranged on the top of the first shell 2, the output end of the first motor 10 passes through the top wall of the first shell 2 and is connected to the gear 11, the ring gear 12 is arranged on the side wall of the upper water diversion plate 7, the gear 11 is meshingly connected with the ring gear 12, when the first motor 10 is started, the output end of the first motor 10 drives the gear 11 to rotate, the gear 11 drives the meshing ring gear 12 to rotate, the ring gear 12 drives the upper water diversion plate 7 to rotate, and the upper water diversion plate 7 drives multiple cooling water pipes 9 to rotate.

[0026] There is a possible implementation, a limiting plate 13 is provided on the inner wall of the first shell 2, a second limiting ring 25 is provided on the limiting plate 13, the upper water dividing plate 7 is rotatably provided in the second limiting ring 25, a plurality of arc grooves are provided at the bottom of the upper water dividing plate 7, a plurality of balls 26 are rollingly provided between the upper water dividing plate 7 and the limiting plate 13 and in the plurality of arc grooves, when the upper water dividing plate 7 rotates, the balls 26 rolling in the plurality of arc grooves can reduce the friction generated during the rotation, and the second limiting ring 25 can limit the upper water dividing plate 7 to prevent displacement during rotation.

[0027] In one possible implementation, a plurality of slag discharge pipes 21 are respectively provided at the bottom of the first shell 2 and the second shell 3 , each slag discharge pipe 21 is provided with a valve 22 , and the valve 22 on the slag discharge pipe 21 can be opened to discharge the dust in the first shell 2 or the second shell 3 to the outside.

[0028] In one possible implementation, the side walls of the first shell 2 and the second shell 3 are respectively provided with inspection doors that can be opened and closed, and the first shell 2 or the second shell 3 can be inspected and cleaned by opening the inspection doors.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly fused magnesia furnace, comprising a fused magnesia furnace body (1), characterized in that: The smoke exhaust port of the fused magnesia furnace body (1) is connected to a first shell (2), a first ventilation pipe (23) is connected to a side wall of the first shell (2), the other end of the first ventilation pipe (23) is connected to a second shell (3), the second shell (3) is connected to a second ventilation pipe (24), the second ventilation pipe (24) is connected to an external air induction device, a water outlet pipe (4) and a water inlet pipe (5) are respectively connected through the top wall and the bottom wall of the first shell (2), the ends of the water outlet pipe (4) and the water inlet pipe (5) located in the first shell (2) are respectively connected to a rotating joint (6), the ends of a pair of the rotating joints (6) on opposite sides are connected to a pair of water distribution plates (7), a plurality of cooling water pipes (9) are connected between the pair of the water distribution plates (7), a driving component is provided on the first shell (2), the The driving assembly can drive the plurality of cooling water pipes (9) to rotate. A second motor (17) is arranged at the bottom of the second shell (3). The output end of the second motor (17) passes through the bottom wall of the second shell (3) and is connected to a first connecting plate (8). A plurality of connecting rods (15) are arranged on the first connecting plate (8). A second connecting plate (14) is arranged on the top of the plurality of connecting rods (15). A filter cloth (16) is arranged between the first connecting plate (8) and the second connecting plate (14). A through hole is opened at the center of the second connecting plate (14). A first air inlet pipe (18) is passed through and connected to the top of the second shell (3). The first air inlet pipe (18) passes through the through hole and is connected to the second air inlet pipe (19). A plurality of air outlet pipes (20) are vertically arranged on one side of the second air inlet pipe (19) close to the filter cloth (16).

2. An environmentally friendly fused magnesia furnace according to claim 1, characterized in that: A first limiting ring (14-1) is arranged on the top of the second connecting plate (14), a groove (3-1) is provided on the inner wall of the top of the second shell (3), and the first limiting ring (14-1) is rotatably arranged in the groove (3-1).

3. The environmentally friendly fused magnesia furnace according to claim 1, characterized in that: The driving assembly comprises a first motor (10), a gear (11) and a ring gear (12); the first motor (10) is arranged on the top of the first housing (2); an output end of the first motor (10) penetrates the top wall of the first housing (2) and is connected to the gear (11); the ring gear (12) is arranged on the side wall of the upper water diversion plate (7); and the gear (11) is meshingly connected with the ring gear (12).

4. An environmentally friendly fused magnesia furnace according to claim 1 or 3, characterized in that: A limiting plate (13) is arranged on the inner wall of the first shell (2), a second limiting ring (25) is arranged on the limiting plate (13), the upper water dividing plate (7) is rotatably arranged in the second limiting ring (25), a plurality of arc-shaped grooves are provided at the bottom of the upper water dividing plate (7), and a plurality of balls (26) are arranged between the upper water dividing plate (7) and the limiting plate (13) and in the plurality of arc-shaped grooves for rolling.

5. The environmentally friendly fused magnesia furnace according to claim 1, characterized in that: A plurality of slag discharge pipes (21) are respectively arranged at the bottom of the first shell (2) and the second shell (3), and each of the slag discharge pipes (21) is provided with a valve (22).

6. The environmentally friendly fused magnesia furnace according to claim 1, characterized in that: Inspection doors are respectively provided on the side walls of the first shell (2) and the second shell (3) in an openable and closable manner.

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