Gas purification device of closed once-through furnace

Abstract

The utility model relates to the technical field of gas purification, and discloses a gas purification device of a closed once-through furnace, which comprises a purification cylinder, the purification cylinder is in a hollow cylinder shape, a half cambered surface of the purification cylinder can be turned over and opened, the top of the purification cylinder is provided with a circular opening, and the cambered surface of the purification cylinder is fixedly connected with a gas inlet pipe and a filter structure. The filtering structure is arranged in a cavity of the purifying barrel and used for purifying coal gas in the cavity of the purifying barrel, the filtering structure comprises a driven wheel, a sleeve, a filtering net, filtering holes and brackets, the driven wheel is rotationally connected into an opening in the top of the purifying barrel, the sleeve is fixedly connected to the bottom of the driven wheel, the filtering net is movably connected to the bottom of the sleeve, and the filtering holes are formed in the wall face of the filtering net; the brackets are fixedly arranged in the cavity of the purification cylinder, the filter holes are round holes, the multiple filter holes are evenly formed in the wall face of the filter screen, and the filter structure is in contact with the connecting rod through the rotating filter screen, so that coal ash is effectively prevented from being blocked in the filter holes.

Description

Technical Field

[0001] The utility model belongs to the field of coal gas purification, and in particular relates to a coal gas purification device for a closed direct current furnace. Background Art

[0002] The closed DC furnace is a highly efficient and environmentally friendly smelting equipment, mainly used in the field of metal and mineral processing, especially the smelting of high-melting-point and high-value minerals such as titanium slag.

[0003] The existing closed direct current furnace needs to purify the gas it emits during use, and the purification method is usually to use a bag filter. However, the bag filter needs to be replaced after long-term use, otherwise the mesh will be clogged by coal ash and the filtering performance will be affected. Therefore, there is an urgent need for a gas purification device that can prevent clogging.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the technical problem that the performance of the above-mentioned prior art is affected by coal ash, the basic concept of the technical solution adopted by the present utility model is:

[0006] A gas purification device for a closed direct current furnace, comprising:

[0007] The purification cylinder is in the shape of a hollow cylinder. Half of the arc surface of the purification cylinder can be flipped open. A circular opening is provided on the top of the purification cylinder. The arc surface of the purification cylinder is fixedly connected to an air inlet pipe. The air inlet pipe is in the shape of a circular tube. The end of the air inlet pipe can be connected to the cavity of the purification cylinder.

[0008] The motor is arranged at the top of the purification cylinder. A U-shaped bracket is installed on the top of the purification cylinder. The motor is fixedly connected to the U-shaped bracket. A driving gear is rotatably connected in the bottom opening of the U-shaped bracket. The motor can drive the driving gear to rotate;

[0009] The filtering structure is arranged in the cavity of the purification cylinder and is used to purify the gas in the cavity of the purification cylinder. The filtering structure includes: a driven wheel, a sleeve, a filter screen, filter holes and brackets. The driven wheel is rotatably connected to the top opening of the purification cylinder, the sleeve is fixedly connected to the bottom of the driven wheel, the filter screen is movably connected to the bottom of the sleeve, the filter holes are opened on the wall of the filter screen, the brackets are fixedly arranged in the cavity of the purification cylinder, the filter holes are circular holes, and multiple filter holes are evenly opened on the wall of the filter screen.

[0010] As a preferred embodiment of the present invention, the driven wheel is in the shape of a gear, the wall of the driving gear is provided with meshing teeth that can engage with the outer wall of the driven wheel, a circular groove is provided through the top of the driven wheel, the sleeve is in the shape of a circular tube, and the sleeve cavity can be connected to the opening of the wall of the driven wheel.

[0011] As a preferred embodiment of the present invention, the filter screen is composed of a hollow circular tube in the upper part and an inverted hollow cone in the lower part, and the position of the bracket and the filter screen are in the same horizontal plane.

[0012] As a preferred embodiment of the present invention, the filtering structure also includes a connecting frame and a connecting rod, the connecting frame is fixedly connected to the inner wall of the purification cylinder, the rear wall of the bracket is fixedly connected to one end of the connecting frame, and the connecting rod is fixedly connected to the wall of the bracket.

[0013] As a preferred embodiment of the present invention, the bracket is an arc-shaped plate, the connecting frame is fixedly connected to the outer arc surface of the bracket, the connecting rod is fixedly connected to the inner arc surface of the bracket, the inner arc surface of the bracket faces the outer wall surface of the filter, the connecting rod is a rod with an isosceles trapezoidal cross-section, and multiple connecting rods are evenly arranged on the wall surface of the bracket.

[0014] As a preferred embodiment of the present invention, the wall surface of the sleeve is provided with a disassembly structure, which includes a sleeve groove, a clamping frame, a clamping tooth, a bolt and a connecting pipe. The sleeve groove is opened on the outer arc surface of the sleeve, the clamping frame is clamped in the sleeve groove, the clamping tooth is fixedly connected to the wall surface of the clamping frame, the bolt is threadedly connected to the wall surface of the clamping frame, the connecting pipe is sleeved in the sleeve groove, and the top of the filter screen and the bottom of the connecting pipe are fixedly connected.

[0015] As a preferred embodiment of the present invention, the clamping frame is in the shape of a circular ring with an opening on the wall surface, and rectangular blocks are symmetrically fixedly connected to the opening on the wall surface of the clamping frame, and the bolts are threadedly connected to the symmetrical rectangular blocks. A plurality of clamping teeth are evenly arranged on the inner arc surface of the clamping frame, and the clamping teeth are rods with isosceles trapezoidal cross-sections. The clamping frame can be sleeved on the outer wall surface of the pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a filtering structure, the coal gas can be filtered and the coal ash can be prevented from affecting the purification of the device. The filtering structure effectively prevents the coal ash from being blocked in the filter holes by rotating the filter screen and contacting the connecting rod. The coal ash will be concentrated and collected in the purification cylinder cavity for easy cleaning. Therefore, this solution will not be blocked by coal ash and affect the purification of the coal gas by the device.

[0018] 2. By setting up the disassembly structure, the filter can be removed from the purification cylinder cavity separately when maintaining or cleaning the filter, which makes it easier to maintain the filter and can also more quickly fix the filter in the purification cylinder cavity when installing the filter.

[0019] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is a perspective view of the interior of the purification cylinder of the utility model;

[0023] Figure 3 This is a bottom perspective view of the filter screen of the utility model;

[0024] Figure 4 This is an exploded view of the sleeve and the connecting pipe of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of the bracket wall of the utility model.

[0026] In the figure: 20, purification cylinder; 21, air inlet pipe; 22, motor; 23, drive gear; 24, connecting frame; 25, bracket; 26, connecting rod; 30, driven wheel; 31, sleeve; 32, sleeve groove; 33, clamping frame; 34, clamping teeth; 35, bolt; 36, connecting pipe; 37, filter screen; 38, filter hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0028] like Figure 1 and Figure 2 As shown, a gas purification device for a closed direct current furnace includes: a purification cylinder 20, which is hollow cylindrical, half of the arc surface of the purification cylinder 20 can be flipped open, and a circular opening is formed on the top of the purification cylinder 20. An air inlet pipe 21 is fixedly connected to the arc surface of the purification cylinder 20, and the air inlet pipe 21 is in the shape of a circular tube. The end of the air inlet pipe 21 can communicate with the cavity of the purification cylinder 20;

[0029] The motor 22 is arranged at the top of the purification cylinder 20. A U-shaped bracket is installed on the top of the purification cylinder 20. The motor 22 is fixedly connected to the U-shaped bracket. The bottom opening of the U-shaped bracket is rotatably connected to the driving gear 23. The motor 22 can drive the driving gear 23 to rotate. The motor 22 is electrically connected to the corresponding power supply. This is an existing technology, so it will not be described here.

[0030] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the filtering structure is arranged in the cavity of the purification cylinder 20 for purifying the coal gas in the cavity of the purification cylinder 20. The filtering structure includes: a driven wheel 30, a sleeve 31, a filter 37, filter holes 38 and a bracket 25. The driven wheel 30 is rotatably connected to the top opening of the purification cylinder 20, the sleeve 31 is fixedly connected to the bottom of the driven wheel 30, the filter 37 is movably connected to the bottom of the sleeve 31, the filter holes 38 are opened on the wall of the filter 37, the bracket 25 is fixedly set in the cavity of the purification cylinder 20, the filter holes 38 are circular holes, and multiple filter holes 38 are evenly opened on the wall of the filter 37.

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the driven wheel 30 is gear-shaped, and the wall surface of the driving gear 23 is provided with meshing teeth that can mesh with the outer wall surface of the driven wheel 30. A circular groove is provided on the top of the driven wheel 30, and the sleeve 31 is tubular. The sleeve 31 cavity can communicate with the wall opening of the driven wheel 30. The filter 37 is composed of a hollow circular tube in the upper part and an inverted hollow cone in the lower part. The position of the bracket 25 and the filter 37 are in the same horizontal plane. The filtering structure also includes a connecting frame 24 and a connecting rod 26. The connecting frame 24 is fixedly connected to the inner wall surface of the purification cylinder 20, and the rear wall surface of the bracket 25 is fixedly connected to one end of the connecting frame 24. The connecting rod 26 is fixedly connected to the wall surface of the bracket 25. The bracket 25 is an arc-shaped plate. 24 is fixedly connected to the outer arc surface of the bracket 25, the connecting rod 26 is fixedly connected to the inner arc surface of the bracket 25, the inner arc surface of the bracket 25 faces the outer wall surface of the filter 37, the connecting rod 26 is a rod with an isosceles trapezoidal cross-section, and a plurality of connecting rods 26 are evenly arranged on the wall surface of the bracket 25. The wall surface of the sleeve 31 is provided with a disassembly structure, which includes a sleeve groove 32, a card frame 33, a card tooth 34, a bolt 35 and a pipe 36. The sleeve groove 32 is opened on the outer arc surface of the sleeve 31, the card frame 33 is carded in the sleeve groove 32, the card tooth 34 is fixedly connected to the wall surface of the card frame 33, the bolt 35 is threadedly connected to the wall surface of the card frame 33, the pipe 36 is sleeved in the sleeve groove 32, and the top of the filter 37 and the bottom of the pipe 36 are fixedly connected;

[0032] During specific use, the air inlet pipe 21 is connected to the gas outlet of the DC furnace, and then the power supply of the motor 22 is started. The motor 22 can drive the driving gear 23 to rotate, and the driving gear 23 can drive the driven wheel 30 to rotate in the top opening of the purification cylinder 20 through the meshing teeth on its wall. The driven wheel 30 can drive the sleeve 31 to rotate at the same time during rotation, and the sleeve 31 can drive the connecting pipe 36 to rotate at the same time, and the connecting pipe 36 can drive the filter screen 37 to rotate. When the coal gas enters the cavity of the purification cylinder 20 through the air inlet pipe 21, it will be filtered by the filter hole 38 and then adhere to the outer wall surface of the filter screen 37. Then, the filtered coal gas will be discharged from the top opening of the driven wheel 30. When the filter screen 37 rotates, it will contact the connecting rod 26. The connecting rod 26 can knock the coal dust on the outer wall of the filter screen 37 to the bottom of the cavity of the purification cylinder 20. When it is necessary to clean the coal dust accumulated in the cavity of the purification cylinder 20, the inner wall surface of the cavity of the purification cylinder 20 can be flipped open to clean its cavity.

[0033] In summary, by setting up a filtering structure, the coal gas can be filtered and the coal ash can be prevented from affecting the purification of the device. The filtering structure effectively prevents the coal ash from being blocked in the filter hole 38 through the rotating filter screen 37 and contacting the connecting rod 26, and the coal ash will be concentrated and collected in the cavity of the purification cylinder 20 for easy cleaning. Therefore, this solution will not be blocked by coal ash and affect the purification of the coal gas by the device.

[0034] like Figure 3 and Figure 4 As shown, the clamping frame 33 is annular with an opening on the wall. Rectangular blocks are symmetrically fixedly connected to the openings on the wall of the clamping frame 33. Bolts 35 are threadedly connected to the symmetrical rectangular blocks. Multiple latch teeth 34 are evenly arranged on the inner arc surface of the clamping frame 33. The latch teeth 34 are rods with isosceles trapezoidal cross-sections. The clamping frame 33 can be sleeved on the outer wall of the pipe 36.

[0035] During actual use, when the filter 37 needs to be replaced or maintained, the bolt 35 is unscrewed from the wall of the rectangular block. At this time, the position of the clamping frame 33 can be unlocked from the sleeve groove 32, and the filter 37 can be removed from the bottom of the sleeve 31 through the connecting pipe 36. During installation, the connecting pipe 36 is first sleeved on the outer wall of the sleeve 31, and then the clamping frame 33 is inserted into the sleeve groove 32. Then, the bolt 35 is tightened on the wall of the rectangular block, and then the clamping frame 33 can be tightened to fix the position of the connecting pipe 36.

[0036] In summary, by setting up a disassembly structure, the filter 37 can be removed from the purification cylinder 20 cavity separately when the filter 37 is maintained or cleaned, thereby facilitating the maintenance of the filter 37, and the filter 37 can be fixed in the purification cylinder 20 cavity more quickly when the filter 37 is installed.

[0037] Working principle: Connect the air inlet pipe 21 to the gas outlet of the DC furnace, and then start the power supply of the motor 22. The motor 22 can drive the driving gear 23 to rotate. The driving gear 23 can drive the driven wheel 30 to rotate in the top opening of the purification cylinder 20 through the meshing teeth on its wall. The driven wheel 30 can drive the sleeve 31 to rotate at the same time when rotating. The sleeve 31 can drive the connecting pipe 36 to rotate at the same time. The connecting pipe 36 can drive the filter 37 to rotate. When the coal gas enters the cavity of the purification cylinder 20 through the air inlet pipe 21, it will be filtered by the filter hole 38 and then adhere to the outer wall surface of the filter 37. Then, the filtered coal gas will be discharged from the top opening of the driven wheel 30. When the filter 37 rotates, it will contact the connecting rod 26. The connecting rod 26 can knock the coal ash on the outer wall of the filter 37 to the bottom of the cavity of the purification cylinder 20.

[0038] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A gas purification device for a closed direct current furnace, characterized in that: include: The purification cylinder (20) is in the shape of a hollow cylinder. Half of the arc surface of the purification cylinder (20) can be flipped open. A circular opening is provided on the top of the purification cylinder (20). An air inlet pipe (21) is fixedly connected to the arc surface of the purification cylinder (20). The air inlet pipe (21) is in the shape of a circular tube. The end of the air inlet pipe (21) can be communicated with the cavity of the purification cylinder (20). The motor (22) is arranged on the top of the purification cylinder (20). A U-shaped bracket is installed on the top of the purification cylinder (20). The motor (22) is fixedly connected to the U-shaped bracket. A driving gear (23) is rotatably connected in the bottom opening of the U-shaped bracket. The motor (22) can drive the driving gear (23) to rotate. The filter structure is arranged in the cavity of the purification cylinder (20) and is used to purify the coal gas in the cavity of the purification cylinder (20). The filter structure includes: a driven wheel (30), a sleeve (31), a filter screen (37), filter holes (38) and a bracket (25). The driven wheel (30) is rotatably connected to the top opening of the purification cylinder (20), the sleeve (31) is fixedly connected to the bottom of the driven wheel (30), the filter screen (37) is movably connected to the bottom of the sleeve (31), the filter holes (38) are opened on the wall surface of the filter screen (37), the bracket (25) is fixedly arranged in the cavity of the purification cylinder (20), the filter holes (38) are circular holes, and a plurality of filter holes (38) are evenly opened on the wall surface of the filter screen (37).

2. The gas purification device for a closed direct current furnace according to claim 1, characterized in that: The driven wheel (30) is in the shape of a gear, and the wall surface of the driving gear (23) is provided with teeth that can mesh with the outer wall surface of the driven wheel (30). A circular groove is provided through the top of the driven wheel (30), and the sleeve (31) is in the shape of a circular tube. The cavity of the sleeve (31) can communicate with the opening of the wall surface of the driven wheel (30).

3. The gas purification device for a closed direct current furnace according to claim 1, characterized in that: The filter screen (37) is composed of a hollow circular tube in the upper part and an inverted hollow cone in the lower part, and the position of the bracket (25) and the filter screen (37) are in the same horizontal plane.

4. The gas purification device for a closed direct current furnace according to claim 1, characterized in that: The filtering structure also includes a connecting frame (24) and a connecting rod (26), the connecting frame (24) is fixedly connected to the inner wall of the purification cylinder (20), the rear wall of the bracket (25) is fixedly connected to one end of the connecting frame (24), and the connecting rod (26) is fixedly connected to the wall of the bracket (25).

5. The gas purification device for a closed direct current furnace according to claim 4, characterized in that: The bracket (25) is an arc-shaped plate, the connecting frame (24) is fixedly connected to the outer arc surface of the bracket (25), the connecting rod (26) is fixedly connected to the inner arc surface of the bracket (25), the inner arc surface of the bracket (25) faces the outer wall surface of the filter screen (37), the connecting rod (26) is a rod with an isosceles trapezoidal cross-section, and a plurality of connecting rods (26) are evenly arranged on the wall surface of the bracket (25).

6. The gas purification device for a closed direct current furnace according to claim 2, characterized in that: The wall surface of the sleeve (31) is provided with a disassembly structure, which includes a sleeve groove (32), a clamping frame (33), a clamping tooth (34), a bolt (35) and a pipe (36). The sleeve groove (32) is provided on the outer arc surface of the sleeve (31), the clamping frame (33) is clamped in the sleeve groove (32), the clamping tooth (34) is fixedly connected to the wall surface of the clamping frame (33), the bolt (35) is threadedly connected to the wall surface of the clamping frame (33), the pipe (36) is sleeved in the sleeve groove (32), and the top of the filter screen (37) and the bottom of the pipe (36) are fixedly connected.

7. The gas purification device for a closed direct current furnace according to claim 6, characterized in that: The clamping frame (33) is in the shape of a ring with an opening on the wall surface. A rectangular block bolt (35) is symmetrically fixedly connected to the opening of the wall surface of the clamping frame (33) and is threadedly connected to the symmetrical rectangular block. A plurality of clamping teeth (34) are evenly arranged on the inner arc surface of the clamping frame (33). The clamping teeth (34) are rods with isosceles trapezoidal cross-sections. The clamping frame (33) can be sleeved on the outer wall surface of the pipe (36).

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