A combustion chamber structure for treating vanadium-titanium reduction rotary kiln waste gas device

Abstract

The present invention discloses a combustion chamber structure of a vanadium-titanium reduction rotary kiln waste gas treatment device. The present invention relates to the field of rotary kiln waste gas treatment technology, comprising a combustion chamber, wherein two ash outlets are arranged at the bottom of the combustion chamber, a shell is arranged at the upper part of the combustion chamber, a collision driving member is arranged at the upper part of the shell, and a collision member is arranged inside the shell, and two ash baffles corresponding to the ash outlets are arranged inside the combustion chamber. The combustion chamber structure of the vanadium-titanium reduction rotary kiln waste gas treatment device, by arranging a collision driving member and a collision member, utilizes the elasticity of a spring, and under the joint action of the collision driving member and the collision member, can make the collision ball at the lower end of the fixed shaft continuously collide with the ash baffle, so that the ash baffle produces slight vibration, so that the dust attached to the surface of the ash baffle will fall, thereby improving the effect of dust treatment in the gas.

Description

Technical Field

[0001] The invention relates to the technical field of rotary kiln waste gas treatment, in particular to a combustion chamber structure of a vanadium-titanium reduction rotary kiln waste gas treatment device. Background Art

[0002] During the vanadium-titanium production process, the vanadium-titanium ore is pre-reduced by a rotary kiln. The rotary kiln is a positive pressure reducing atmosphere without O2. The rotary kiln outlet is required to control a slight positive pressure (10-30pa). After the pre-reduction reaction, a high-temperature (600-700℃) combustible waste gas containing a small amount of H2, CO (combustible content ≤15%) and a high dust content (about 20-30g / Nm3) will be generated. The ash contains a large amount of carbon powder (C). This part of the waste gas must be treated before it can be discharged.

[0003] The utility model of China Patent Publication No. CN207741587U is a device for treating waste gas from a vanadium-titanium reduction rotary kiln, the device includes a high-temperature waste gas cooling device, a primary air injection device, an ignition stable combustion heat storage device, a secondary air device, a combustion chamber, and a throat mixing zone, the secondary air device is arranged circumferentially in the inner wall of the combustion chamber; the primary air inlet of the primary air injection device is connected to the tubular heat exchanger of the high-temperature waste gas cooling device, the tube outlet of the tubular heat exchanger of the high-temperature waste gas cooling device is connected to the hot primary air duct of the primary air injection device, the primary hot air nozzle of the primary air injection device is located on the central axis of the primary air injection device, facing the throat mixing zone, the ignition stable combustion heat storage device is arranged in the throat mixing zone, leading to the combustion chamber, and the throat mixing zone is a contraction-diffusion structure. The utility model treats the waste gas into safe waste gas without combustibles according to the process requirements and waste gas components, so that the waste gas after combustion can be recovered by heat recovery equipment such as waste heat boilers, while ensuring that the emission meets the standards.

[0004] However, after the combustion chamber has been working for a long time, a lot of dust will adhere to the surface of the retaining wall inside the combustion chamber, which affects the handling of the dust. In addition, the retaining wall is integrated with the combustion chamber, making it inconvenient to disassemble and replace the retaining wall. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a combustion chamber structure for treating exhaust gas from a vanadium-titanium reduction rotary kiln, which solves the problems of inconvenient dust treatment on the retaining wall surface and inconvenient retaining wall replacement inside the combustion chamber.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a combustion chamber structure of a vanadium-titanium reduction rotary kiln exhaust gas treatment device, comprising a combustion chamber, wherein two ash outlets are arranged at the bottom of the combustion chamber, a shell is arranged at the upper part of the combustion chamber, a collision driving member is arranged at the upper part of the shell, and a collision member is arranged inside the shell, and two ash baffles corresponding to the ash outlets are arranged inside the combustion chamber.

[0007] The collision member includes two limiting shafts connected to the inside of the shell, two guide plates are symmetrically slidably sleeved between the outsides of the two limiting shafts, the lower sides of the two guide plates are vertically connected to fixed shafts, and the lower ends of the two fixed shafts are provided with collision balls, and springs are sleeved on the outsides of both ends of the limiting shafts, and the two ends of the springs are respectively connected to one side of the guide plate and the inner side of the shell.

[0008] Furthermore, when the spring is in a natural state, the collision balls at the lower ends of the two fixed shafts are in close contact with the center positions of one side of the two dust shields respectively.

[0009] Furthermore, a slide groove corresponding to the fixed shaft is provided at an upper portion of the combustion chamber at an inner position of the shell, and both of the fixed shafts slide through the inner portion of the slide groove.

[0010] Furthermore, the collision drive component includes a turntable 1 rotatably installed at the middle position of the upper part of the shell, a limit plate is provided on one side of the turntable 1, a motor is installed at one end position of the upper part of the shell close to the limit plate, the output shaft of the motor is connected to the turntable 2, the turntable 2 and the turntable 1 are on the same horizontal plane, and a protruding rod is provided on one side of the turntable 2.

[0011] Furthermore, when the protruding rod rotates one circle, the protruding rod will pass through the limiting plate and collide with each other once.

[0012] Furthermore, guide grooves are provided on the upper sides of the two guide plates, guide shafts are slidably installed at the inner middle positions of the two guide grooves, and the upper ends of the two guide shafts are hinged with adjustment rods. The lower end of the turntable 1 is located at the inner position of the shell and is connected to a disc, and the other ends of the two adjustment rods are respectively hinged to the lower parts of both sides of the disc.

[0013] Furthermore, the upper and lower sides of the interior of the combustion chamber are provided with slots that are compatible with the ash baffle plate, the ash baffle plate is snap-connected to the inside of the slot, and grooves are provided on both sides below the ash baffle plate, the inside of the groove is connected to an arc-shaped elastic strip, the arc surface of the arc-shaped elastic strip is connected to an arc-shaped blocking block, and a handle is provided in the middle position of one side of the groove.

[0014] Furthermore, positioning holes adapted to the arc-shaped clamping blocks are provided on both sides of the interior of the clamping slot, and when the arc-shaped elastic strip is in a natural state, the two arc-shaped clamping blocks are respectively clamped in the interior of the two positioning holes.

[0015] Furthermore, a gas pipe connected to the interior of the combustion chamber is provided on one side of the combustion chamber, an air inlet is provided on the upper part of one end of the gas pipe, an igniter corresponding to the other end of the gas pipe is installed on the lower part of one side of the combustion chamber, and an exhaust port is provided on the other side of the combustion chamber.

[0016] Beneficial Effects

[0017] The present invention provides a combustion chamber structure for a vanadium-titanium reduction rotary kiln exhaust gas treatment device, which has the following beneficial effects compared with the prior art:

[0018] 1. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device is provided with a collision driving member and a collision member. By utilizing the elasticity of the spring, under the joint action of the collision driving member and the collision member, the collision ball at the lower end of the fixed shaft can continuously collide with the ash baffle plate, causing the ash baffle plate to vibrate slightly, so that the dust attached to the surface of the ash baffle plate will fall off, thereby improving the effect of dust treatment in the gas.

[0019] 2. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device is characterized by arranging arc-shaped elastic strips and clamping balls on the ash baffle plate. The elasticity of the arc-shaped elastic strip is utilized to clamp the ash baffle plate into the clamping slot, and the clamping ball is clamped into the positioning hole inside the clamping slot, thereby quickly completing the installation of the ash baffle plate. At the same time, the ash baffle plate can be quickly disassembled with the help of tools, such as sticks, screwdrivers, etc., which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the combustion chamber of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the shell of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the collision member of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the dust baffle of the present invention.

[0025] In the figure: 1. combustion chamber; 101. slot; 102. positioning hole; 103. gas pipe; 104. air inlet; 105. igniter; 106. exhaust port; 2. ash drop port; 3. shell; 4. collision drive member; 41. turntable one; 42. limit plate; 43. motor; 44. turntable two; 45. protruding rod; 5. collision member; 51. limit shaft; 52. guide plate; 53. spring; 54. fixed shaft; 55. collision ball; 56. guide groove; 57. guide shaft; 58. adjusting rod; 59. disc; 6. ash baffle; 61. groove; 62. arc elastic strip; 63. arc block; 64. handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-2 The present invention provides a technical solution, a combustion chamber structure of a vanadium-titanium reduction rotary kiln exhaust gas treatment device, comprising a combustion chamber 1, two ash outlets 2 are arranged at the bottom of the combustion chamber 1, a shell 3 is arranged at the upper part of the combustion chamber 1, a collision driving member 4 is arranged at the upper part of the shell 3, and a collision member 5 is arranged inside the shell 3, two ash baffles 6 corresponding to the ash outlets 2 are arranged inside the combustion chamber 1, a gas pipe 103 connected to the interior of the combustion chamber 1 is arranged on one side of the combustion chamber 1, an air inlet 104 is arranged on the upper part of one end of the gas pipe 103, an igniter 105 corresponding to the other end of the gas pipe 103 is installed at the lower part of one side of the combustion chamber 1, and an exhaust port 106 is arranged on the other side of the combustion chamber 1.

[0028] See also Figure 4 In the embodiment of the present invention, the collision member 5 includes two limit shafts 51 connected to the inside of the shell 3, two guide plates 52 are symmetrically slidably sleeved between the outsides of the two limit shafts 51, and the lower sides of the two guide plates 52 are vertically connected with fixed shafts 54, and the lower ends of the two fixed shafts 54 are provided with collision balls 55. The outsides of both ends of the limit shafts 51 are sleeved with springs 53, and the two ends of the spring 53 are respectively connected to one side of the guide plate 52 and the inner side of the shell 3. When the spring 53 is in a natural state, the collision balls 55 at the lower ends of the two fixed shafts 54 are respectively in contact with the center position of one side of the two ash baffles 6, and the upper part of the combustion chamber 1 is located at the internal position of the shell 3. A slide groove corresponding to the fixed shaft 54 ​​is provided, and the two fixed shafts 54 slide through the inside of the slide groove.

[0029] See also Figure 3-4In the embodiment of the present invention, the collision driving member 4 includes a turntable 41 rotatably mounted at the middle position of the upper part of the shell 3, a limit plate 42 is arranged on one side of the turntable 41, a motor 43 is arranged at one end position of the upper part of the shell 3 close to the limit plate 42, the output shaft of the motor 43 is connected with the turntable 44, the turntable 44 and the turntable 41 are on the same horizontal plane, and a protruding rod 45 is arranged on one side of the turntable 44, when the protruding rod 45 rotates one circle, the protruding rod 45 will pass through the limit plate 42 and collide with each other once, the upper sides of the two guide plates 52 are provided with guide grooves 56, the inner middle positions of the two guide grooves 56 are slidably mounted with guide shafts 57, the upper ends of the two guide shafts 57 are hinged with adjusting rods 58, the lower end of the turntable 41 is located at the inner position of the shell 3 and is connected with a disc 59, and the other ends of the two adjusting rods 58 are respectively hinged to the lower parts of the two sides of the disc 59.

[0030] See also Figure 2 and Figure 5 In the embodiment of the present invention, the upper and lower sides of the interior of the combustion chamber 1 are provided with card slots 101 adapted to the ash baffle plate 6, the ash baffle plate 6 is snapped into the interior of the card slot 101, and grooves 61 are provided on both sides of the lower side of the ash baffle plate 6, the interior of the groove 61 is connected with an arc-shaped elastic strip 62, the arc surface of the arc-shaped elastic strip 62 is connected with an arc-shaped card block 63, a handle 64 is provided at the middle position of one side of the groove 61, and positioning holes 102 adapted to the arc-shaped card block 63 are provided on both sides of the interior of the card slot 101, and when the arc-shaped elastic strip 62 is in a natural state, the two arc-shaped card blocks 63 are respectively snapped into the interior of the two positioning holes 102.

[0031] Working principle:

[0032] Combustion process: the exhaust gas enters from the air inlet 104, and then enters the combustion chamber 1 from the gas pipe 103. The igniter 105 ignites the combustible gas in the exhaust gas, and then the non-combustible gas is discharged from the exhaust port 106 on the combustion chamber 1. The two ash baffles 6 inside the combustion chamber 1 block the dust in the exhaust gas, so that the dust falls from the ash drop port 2 at the bottom of the combustion chamber 1.

[0033] Dust removal process: When the dust shield 6 blocks the dust, the motor 43 drives the turntable 2 44 to rotate. Every time the turntable 2 44 rotates one circle, the protruding rod 45 on the turntable 2 44 will collide with the limit plate 42 on the turntable 1 41. When the limit plate 42 is collided, the turntable 1 41 will rotate in a small range, and the turntable 1 41 will drive the disc 59 to rotate in a small range. The disc 59 will drive the adjusting rod 58 to make an eccentric movement, and the adjusting rod 58 will drive the guide shaft 57 to move on the guide plate 5 2, under the elasticity of the spring 53, the guide shaft 57 will drive the guide plate 52 to slide on the limit shaft 51, when the protruding rod 45 leaves the position of the limit plate 42, the spring 53 will quickly reset the guide plate 52, under the repeated rotation of the turntable 2 44, the guide plate 52 will repeatedly move back and forth, and the collision ball 55 at the lower end of the fixed shaft 54 ​​will continuously collide with the dust baffle 6, so that the dust baffle 6 vibrates, so that the dust attached to the surface of the dust baffle 6 falls off;

[0034] Disassembly and assembly work: When installing the ash baffle 6, insert the ash baffle 6 into the slot 101 on the inner side of the combustion chamber 1. Since the arc-shaped block 63 is an arc-shaped structure, during the insertion process, the elasticity of the arc-shaped elastic strip 62 is used to press the arc-shaped block 63 into the groove 61 by the inner wall of the slot 101. When the arc-shaped block 63 passes through the positioning hole 102 inside the slot 101, the arc-shaped elastic strip 62 resets the arc-shaped block 63 and blocks it into the positioning hole 102, thereby completing the installation of the ash baffle 6. When it is necessary to disassemble the ash baffle 6, use a tool such as a stick or a screwdriver to insert it into the positioning hole 102, squeeze the arc-shaped block 63, and move the arc-shaped block 63 to the inside of the groove 61. Then, hold the handle 64 on the ash baffle 6 and pull the ash baffle 6 out of the slot 101 on the inner side of the combustion chamber 1 to complete the disassembly work.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A combustion chamber structure of a vanadium-titanium reduction rotary kiln exhaust gas treatment device, comprising a combustion chamber (1), wherein the bottom of the combustion chamber (1) is provided with two ash outlets (2), characterized in that: A shell (3) is arranged at the upper part of the combustion chamber (1), a collision driving member (4) is arranged at the upper part of the shell (3), and a collision member (5) is arranged inside the shell (3); two ash baffles (6) corresponding to the ash drop opening (2) are arranged inside the combustion chamber (1); the collision member (5) comprises two limiting shafts (51) connected to the inside of the shell (3); two guide plates (52) are symmetrically slidably sleeved between the outsides of the two limiting shafts (51); the lower sides of the two guide plates (52) are vertically connected to fixed shafts (54); the lower ends of the two fixed shafts (54) are provided with collision balls (55); the outer ends of both ends of the limiting shaft (51) are sleeved with springs (53); the two ends of the spring (53) are respectively connected to one side of the guide plate (52) and the inner side of the shell (3); the spring (53) When in a natural state, the collision balls (55) at the lower ends of the two fixed shafts (54) are respectively in contact with the center position of one side of the two ash baffles (6); the upper part of the combustion chamber (1) is located at an internal position of the shell (3) and is provided with a slide groove corresponding to the fixed shaft (54), and the two fixed shafts (54) both slide through the inside of the slide groove; the collision driving member (4) includes a turntable (41) rotatably installed at the middle position of the upper part of the shell (3), a limit plate (42) is provided on one side of the turntable (41), a motor (43) is installed at an end position of the upper part of the shell (3) close to the limit plate (42), the output shaft of the motor (43) is connected to the turntable (44), the turntable (44) and the turntable (41) are on the same horizontal plane, and a protruding rod (45) is provided on one side of the turntable (44).

2. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device according to claim 1 is characterized in that: When the protruding rod (45) rotates one circle, the protruding rod (45) passes through the limiting plate (42) and collides with each other once.

3. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device according to claim 1 is characterized in that: The upper sides of the two guide plates (52) are each provided with a guide groove (56), a guide shaft (57) is slidably mounted at the inner middle position of the two guide grooves (56), the upper ends of the two guide shafts (57) are each hinged with an adjustment rod (58), the lower end of the turntable (41) is located at an inner position of the housing (3) and is connected to a disk (59), and the other ends of the two adjustment rods (58) are respectively hinged to the lower parts of both sides of the disk (59).

4. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device according to claim 1 is characterized in that: The combustion chamber (1) is provided with a slot (101) adapted to the ash baffle plate (6) on the upper and lower sides thereof, the ash baffle plate (6) is snap-fitted into the slot (101), and grooves (61) are provided on both sides below the ash baffle plate (6), the interior of the groove (61) is connected with an arc-shaped elastic strip (62), the arc surface of the arc-shaped elastic strip (62) is connected with an arc-shaped block (63), and a handle (64) is provided at the middle position of one side of the groove (61).

5. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device according to claim 4 is characterized in that: Positioning holes (102) adapted to the arc-shaped clamping blocks (63) are provided on both sides of the interior of the clamping slot (101); when the arc-shaped elastic strip (62) is in a natural state, the two arc-shaped clamping blocks (63) are respectively clamped in the interior of the two positioning holes (102).

6. The combustion chamber structure of the vanadium-titanium reduction rotary kiln exhaust gas treatment device according to claim 1 is characterized by: A gas pipe (103) connected to the interior of the combustion chamber (1) is disposed on one side thereof, an air inlet (104) is disposed on the upper portion of one end of the gas pipe (103), an igniter (105) corresponding to the other end of the gas pipe (103) is installed on the lower portion of one side of the combustion chamber (1), and an exhaust port (106) is disposed on the other side of the combustion chamber (1).

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