A spray type alloy production waste gas purification equipment

Abstract

The present invention relates to the field of waste gas purification equipment, and in particular to a spray-type alloy production waste gas purification equipment, including a dust reduction chamber and a suction hood. The present invention describes a spray-type alloy production waste gas purification equipment, which monitors the smoke concentration in the smoke-containing waste gas through a smoke concentration sensor, and changes the size of the annular waste gas flow between the annular inner baffle and the dust reduction chamber under the adjustment of the telescopic control mechanism, and at the same time changes the flow rate of the spray liquid sprayed from the arc spray pipe, so as to achieve the different smoke concentrations in the smoke-containing waste gas. The intensity of the spray dust reduction treatment of the smoke is also changed accordingly. On the basis of ensuring the efficient spray dust reduction treatment of the smoke in the smoke-containing waste gas, the amount of spray liquid used is greatly reduced. The technical problem that the spray system in the dust reduction chamber cannot make corresponding spray adjustments according to the different smoke concentrations in the smoke-containing waste gas, resulting in a large amount of spray liquid waste, is solved.

Description

Technical Field

[0001] The invention relates to the field of waste gas purification equipment, and in particular to a spray-type alloy production waste gas purification equipment. Background Art

[0002] During the alloy smelting production work, a large amount of smoke-containing exhaust gas will be continuously generated. In order to prevent the smoke in the smoke-containing exhaust gas from being directly discharged into the air and causing serious air pollution, it is necessary to spray the smoke in the smoke-containing exhaust gas to reduce dust. The conventional practice is to continuously pump the smoke-containing exhaust gas into the dust reduction chamber, and at the same time, the spray system continuously sprays spray liquid into the dust reduction chamber to spray down the smoke in the smoke-containing exhaust gas flowing through the dust reduction chamber. During this period, a large amount of spray liquid will be consumed to spray and reduce dust on the smoke in the smoke-containing exhaust gas. However, the smoke concentration in the smoke-containing exhaust gas discharged at different periods of the alloy smelting production work is different. Therefore, when the smoke concentration in the smoke-containing exhaust gas is low, using the same method to spray and reduce dust on the smoke in the smoke-containing exhaust gas will cause a large amount of spray liquid waste. Summary of the invention

[0003] In order to overcome the disadvantage that the spray system in the dust suppression chamber cannot make corresponding spray adjustments according to the different smoke concentrations in the smoke-containing exhaust gas, resulting in a large amount of spray liquid waste, the present invention provides a spray-type alloy production exhaust gas purification device.

[0004] The invention describes a spray-type alloy production waste gas purification device, which includes a mounting frame, a dust reduction cabin, a fixed column, a movable arm, a fixed arc plate, a folding arc plate, a pull rod, a telescopic control mechanism, a suction hood, an infusion tube, a shunt pipe and an arc-shaped spray pipe; the mounting frame is fixedly connected with the dust reduction cabin; the dust reduction cabin is connected with an air intake pipe, and the central axis of the air intake pipe forms a tangent structure tangent to the outer edge of the dust reduction cabin; the bottom of the dust reduction cabin is connected with a waste liquid pipe; the top of the dust reduction cabin is connected with a suction hood; the inner wall of the dust reduction cabin is provided with a plurality of inner arc-shaped guide plates; the dust reduction cabin is fixedly connected with A fixed column; a plurality of movable arms are equidistantly connected to the outer surface of the fixed column in a sliding manner; a fixed arc plate is fixedly connected to the movable arm; a folding arc plate is commonly fixedly connected between two adjacent fixed arc plates; a plurality of outer arc guide plates are arranged on the outer surface of the fixed arc plate; a pull rod is fixedly connected to the movable arm; a telescopic control mechanism for controlling the pull rod to drive the movable arm to move telescopically is connected to the fixed column; an infusion tube is fixedly connected to the suction hood; an arc-shaped spray tube is fixedly connected to the fixed arc plate; a shunt tube is connected between the arc-shaped spray tube and the infusion tube, and the shunt tube is a deformable hose.

[0005] More preferably, a circular telescopic baffle is fixedly connected to the lower side of the fixed column; and the outer edge of the circular telescopic baffle is fixedly connected to the lower side of all the fixed arc plates.

[0006] More preferably, the telescopic control mechanism consists of a turntable, a spur gear ring, a drive motor and a spur gear; the turntable is rotatably connected to the fixed column; the turntable is provided with an arc guide groove structure corresponding to the number and position of the pull rods, and the pull rods are slidably connected to the corresponding arc guide groove structures; the turntable is fixedly connected to the spur gear ring; the drive motor is installed on the fixed column; the output shaft of the drive motor is fixedly connected to the spur gear; the spur gear is meshed with the spur gear ring.

[0007] More preferably, an upwardly contracted annular step structure is provided in the middle of the dust reduction chamber.

[0008] More preferably, an annular pipe is fixedly connected to the dust reduction chamber; the annular pipe is connected to a plurality of spray branch pipes penetrating into the interior of the dust reduction chamber.

[0009] More preferably, all the spray branches of the annular pipe are located on the annular terrace structure in the middle of the dust suppression chamber.

[0010] More preferably, a fixing rod is connected to the lower side of the fixed arc plate; a metal mesh is fixed to the fixing rod, and the metal mesh is flush with the air inlet pipe height; a sliding rod is fixed to the metal mesh and is close to the inner wall of the dust suppression chamber.

[0011] More preferably, the fixing rods are rotatably connected to the corresponding fixing arc plates; and a torsion spring is fixedly connected between the fixing rods and the corresponding fixing arc plates.

[0012] More preferably, the slide bar is made of fire-retardant rubber material.

[0013] More preferably, a smoke concentration sensor for detecting the smoke concentration in the smoke-containing exhaust gas is installed on the air intake pipe.

[0014] The invention describes a spray-type alloy production waste gas purification device, which monitors the smoke concentration in the smoke-containing waste gas through a smoke concentration sensor, and a dust reduction chamber is provided with an annular inner baffle plate with a variable diameter composed of a plurality of fixed arc plates and a plurality of folded arc plates. The annular inner baffle plate makes an adjustment change in diameter under the adjustment of a telescopic control mechanism, thereby changing the size of the annular waste gas flow between the annular inner baffle plate and the dust reduction chamber, and at the same time changing the flow size of the spray liquid sprayed from the arc spray pipe, so that the intensity of the spray dust reduction treatment of the smoke is changed accordingly according to the different smoke concentrations in the smoke-containing waste gas, and the use of the spray liquid is greatly reduced on the basis of ensuring efficient spray dust reduction treatment of the smoke in the smoke-containing waste gas;

[0015] The invention describes a spray-type alloy production waste gas purification device, which solves the technical problem that the spray system in the dust reduction chamber cannot make corresponding spray adjustments according to different smoke concentrations in the smoke-containing waste gas, resulting in a large amount of waste of spray liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram for describing a spray-type alloy production waste gas purification device of the present invention;

[0017] Figure 2 A cross-sectional view of a dust suppression chamber for describing a spray-type alloy production waste gas purification device of the present invention;

[0018] Figure 3 A cross-sectional view of an annular pipe for describing a spray-type alloy production waste gas purification device of the present invention;

[0019] Figure 4 A three-dimensional diagram of a metal mesh for describing a spray-type alloy production waste gas purification device of the present invention;

[0020] Figure 5 An enlarged view of the H region for describing a spray-type alloy production waste gas purification device of the present invention;

[0021] Figure 6 A bottom view showing a retractable control mechanism of a spray-type alloy production waste gas purification device according to the present invention in a retracted state;

[0022] Figure 7 The present invention is a bottom view of the expansion state of the telescopic control mechanism of the spray-type alloy production waste gas purification equipment.

[0023] The above drawings include the following figure marks: 1-mounting frame, 2-dust reduction chamber, 201-air inlet pipe, 202-waste liquid pipe, 203-inner arc guide plate, 204-annular step, 21-fixed column, 211-circular telescopic baffle, 22-moving arm, 23-fixed arc plate, 2301-outer arc guide plate, 24-folding arc plate, 25-pull rod, 26-turntable, 2601-arc guide groove, 27-spur gear ring, 28-drive motor, 29-spur gear, 3-suction hood, 4-infusion tube, 41-shunt pipe, 42-arc spray pipe, 5-annular pipe, 501-spray branch pipe, 6-metal mesh, 61-fixed rod, 62-slide rod, 63-torsion spring, 7-smoke concentration sensor. DETAILED DESCRIPTION

[0024] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position. Example 1

[0025] The present invention describes a spray type alloy production waste gas purification device structure composed of the following: Figure 1-Figure 7 As shown, it includes a mounting frame 1, a dust reduction chamber 2, a fixed column 21, a movable arm 22, a fixed arc plate 23, a folding arc plate 24, a pull rod 25, a telescopic control mechanism, a suction hood 3, an infusion tube 4, a shunt tube 41, an arc-shaped spray pipe 42 and a smoke concentration sensor 7; the mounting frame 1 is fixedly connected to the dust reduction chamber 2; the lower side of the dust reduction chamber 2 is connected to an air intake pipe 201, and the central axis of the air intake pipe 201 forms a tangent structure tangent to the outer edge of the dust reduction chamber 2, so that the smoke-containing exhaust gas enters the dust reduction chamber 2 along the air intake pipe 201 After the dust removal chamber 2 is opened, the smoke-containing exhaust gas will form a circular flow trajectory around the inner wall of the dust removal chamber 2; the bottom of the dust removal chamber 2 is connected to a waste liquid pipe 202; the top of the dust removal chamber 2 is connected to a suction hood 3, and the suction hood 3 is externally connected to an exhaust gas suction device; the inner wall of the dust removal chamber 2 is provided with a plurality of inner arc guide plates 203, and all the inner arc guide plates 203 together form an inner spiral arc guide structure for upward drainage; a fixed column 21 is fixedly connected to the dust removal chamber 2; a plurality of movable arms 22 are equidistantly slidably connected around the outer surface of the fixed column 21; each movable arm 2 2 is fixedly connected to each of the fixed arc plates 23; a folding arc plate 24 is fixedly connected between each two adjacent fixed arc plates 23, and all the fixed arc plates 23 and all the folding arc plates 24 together form a ring-shaped inner baffle with a variable diameter; a circular telescopic baffle 211 is fixedly connected to the lower side of the fixed column 21; the outer edge of the circular telescopic baffle 211 is fixedly connected to the lower side of all the fixed arc plates 23; each fixed arc plate 23 is provided with a plurality of outer arc guide plates 2301 on the outer surface, and all the outer arc guide plates 2301 are fixedly connected to the outer surface of each fixed arc plate 23; The guide plates 2301 together form an outer spiral arc guide structure that matches the inner spiral arc guide structure; each movable arm 22 is fixedly connected to a pull rod 25; the fixed column 21 is connected to a telescopic control mechanism; the infusion tube 4 is externally connected to a spray liquid delivery device; each fixed arc plate 23 is fixedly connected to an arc spray pipe 42; each arc spray pipe 42 is connected to the infusion tube 4 with a shunt pipe 41, which is a deformable hose; a smoke concentration sensor 7 is installed on the air intake pipe 201.

[0026] like Figure 6 As shown, the telescopic control mechanism consists of a turntable 26, a spur gear ring 27, a drive motor 28 and a spur gear 29; the turntable 26 is rotatably connected to the fixed column 21; the turntable 26 is provided with an arc guide groove 2601 structure corresponding to the number and position of the pull rod 25, and the pull rod 25 is slidably connected to the corresponding arc guide groove 2601 structure; the turntable 26 is fixedly connected to the spur gear ring 27; the drive motor 28 is installed on the fixed column 21; the output shaft of the drive motor 28 is fixedly connected to the spur gear 29; the spur gear 29 is meshed with the spur gear ring 27.

[0027] The working steps of a spray-type alloy production waste gas purification device described in the present invention are as follows.

[0028] First, the external exhaust gas suction equipment continuously performs suction work in the dust reduction chamber 2 through the suction hood 3, and the smoke-containing exhaust gas continuously generated during the alloy smelting production work is continuously sucked into the dust reduction chamber 2 through the air inlet pipe 201. The smoke-containing exhaust gas flows around the inner wall of the dust reduction chamber 2 in a circular flow trajectory, and then flows along the inner spiral arc guide structure composed of the inner arc guide plate 203 and the outer spiral arc guide structure composed of the outer arc guide plate 2301. It flows upward through the annular exhaust gas flow between the annular inner baffle and the dust reduction chamber 2 in a spiral ascending flow trajectory and is sucked away by the suction hood 3, thereby increasing the residence time of the smoke-containing exhaust gas flowing in the dust reduction chamber 2. At the same time, the external spray liquid delivery equipment continuously delivers spray liquid to each arc spray pipe 42 through the infusion pipe 4 and the diversion pipe 41, and sprays spray liquid downward from each arc spray pipe 42 to continuously spray and dust-reducing the smoke in the smoke-containing exhaust gas flowing through the annular exhaust gas flow between the annular inner baffle and the dust reduction chamber 2.

[0029] During this period, the smoke concentration sensor 7 continuously monitors the smoke concentration in the smoke-containing exhaust gas flowing through the intake pipe 201. When the smoke concentration sensor 7 detects that the smoke concentration in the smoke-containing exhaust gas continuously flowing through the intake pipe 201 is low, the smoke concentration sensor 7 sends a contraction start signal to the drive motor 28 through the signal transmission circuit. The output shaft of the drive motor 28 drives the spur gear 29 to rotate. The spur gear 29 engages with the spur gear ring 27 to drive the turntable 26 to rotate clockwise at an upward angle. The rotating turntable 26 pushes the pull rod 25 through the arc guide groove 2601 to drive the moving arm 22 to extend outward along the fixed column 21. At the same time, the fixed column 21 pushes the fixed arc plate 23 to move toward the inner wall of the dust reduction chamber 2. All the moving fixed arc plates 23 synchronously pull the folding arc plates 24 connected to them to expand outward. Figure 6 As shown, the diameter of the annular inner baffle plate composed of all the fixed arc plates 23 and all the folding arc plates 24 is enlarged. At this time, the annular exhaust gas circulation between the annular inner baffle plate and the dust reduction chamber 2 will be reduced, reducing the flow space of the smoky exhaust gas along the annular exhaust gas circulation between the annular inner baffle plate and the dust reduction chamber 2, allowing the smoky exhaust gas to flow in the annular exhaust gas circulation in a more concentrated state, thereby increasing the aggregation density of low-content smoke in the smoky exhaust gas and reducing the spraying range of the spray liquid. At the same time, the smoke concentration sensor 7 sends a power reduction signal to the external spray liquid delivery equipment through the signal transmission circuit. The external spray liquid delivery equipment reduces the delivery flow rate of the spray liquid, thereby reducing the flow rate of the spray liquid sprayed downward from each arc spray pipe 42, thereby ensuring that the smoke in the smoky exhaust gas is efficiently sprayed for dust reduction treatment, while greatly reducing the amount of spray liquid used. Example 2

[0030] like Figure 1-Figure 6As shown, on the basis of Example 1, the dust reduction chamber 2 of this embodiment is provided with an upwardly contracting annular step 204 structure in the middle part, so that the smoke-containing exhaust gas can contract and gather upward along the annular step 204 structure in the middle part of the dust reduction chamber 2, thereby improving the centralized spraying and dust reduction treatment efficiency of the smoke-containing exhaust gas; an annular pipe 5 is fixedly connected to the dust reduction chamber 2, and the annular pipe 5 is also externally connected to a spray liquid delivery device; a plurality of spray branch pipes 501 are connected to the annular pipe 5, and the spray branch pipes 501 pass through the interior of the dust reduction chamber 2; all the spray branch pipes 501 of the annular pipe 5 are located on the annular step 204 structure in the middle part of the dust reduction chamber 2.

[0031] When the smoke concentration in the smoky exhaust gas flowing through the dust reduction chamber 2 is high, the external spray liquid conveying equipment continuously conveys spray liquid to each spray branch pipe 501 of the annular pipe 5, and the spray liquid is pre-sprayed from the spray branch pipe 501 from the middle of the dust reduction chamber 2 to the lower area for dust reduction treatment, which initially reduces the smoke concentration in the smoky exhaust gas flowing through the middle of the dust reduction chamber 2, and then the remaining smoky exhaust gas shrinks and gathers upward along the annular step 204 structure in the middle of the dust reduction chamber 2, thereby increasing the aggregation density of the smoke in the smoky exhaust gas, and then the spray liquid from each arc-shaped spray pipe 42 performs efficient spray dust reduction treatment on the remaining smoke in the smoky exhaust gas, thereby further improving the spray dust reduction treatment effect on high-concentration smoke in the smoky exhaust gas. Example 3

[0032] like Figure 1-Figure 6 As shown, on the basis of Example 1, a fixed rod 61 is connected to the lower side of each fixed arc plate 23 of this embodiment; a metal mesh 6 is fixedly connected to each fixed rod 61, and the metal mesh 6 is flush with the height of the air inlet pipe 201; a sliding rod 62 is fixedly connected to each metal mesh 6, and the sliding rod 62 is close to the inner wall of the dust reduction chamber 2; the fixed rods 61 are rotatably connected to the corresponding fixed arc plates 23; a torsion spring 63 is fixedly connected between each fixed rod 61 and the corresponding fixed arc plate 23, and the torsion spring 63 is sleeved on the outer surface of the fixed rod 61; each sliding rod 62 uses a fire-retardant rubber material, and the sliding rod 62 can reduce scratches caused to it during the movement of the sliding rod 62 close to the inner wall of the dust reduction chamber 2.

[0033] When the movable arm 22 pushes the fixed arc plate 23 to move toward the inner wall of the dust reduction chamber 2, the fixed arc plate 23 will drive the metal mesh 6 on the fixed rod 61 to be squeezed toward the inner wall of the dust reduction chamber 2. At this time, the metal mesh 6 will push the sliding rod 62 to move close to the inner wall of the dust reduction chamber 2, allowing the metal mesh 6 to drive the fixed rod 61 to rotate. At the same time, the fixed rod 61 drives the torsion spring 63 to twist, thereby reducing the deformation of the metal mesh 6 caused by the squeezing between the fixed arc plate 23 and the inner wall of the dust reduction chamber 2. Subsequently, when the smoky exhaust gas enters the dust reduction chamber 2 through the air intake pipe 201, the sparks carried in the smoky exhaust gas will collide with each metal mesh 6 respectively, so that the metal mesh 6 can intercept the sparks carried in the smoky exhaust gas and extinguish them with the help of the spray liquid.

[0034] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A spray-type alloy production waste gas purification device, comprising: a mounting frame (1); a dust suppression chamber (2) fixedly connected to the mounting frame (1); Its characteristics are: The dust reduction chamber (2) also includes an air intake pipe (201); the dust reduction chamber (2) is connected to the air intake pipe (201), and the central axis of the air intake pipe (201) forms a tangent structure tangent to the outer edge of the dust reduction chamber (2); the bottom of the dust reduction chamber (2) is connected to a waste liquid pipe (202); the top of the dust reduction chamber (2) is connected to a suction hood (3); a plurality of inner arc-shaped guide plates (203) are provided on the inner wall of the dust reduction chamber (2); a fixed column (21) is fixedly connected to the inside of the dust reduction chamber (2); a plurality of movable arms (22) are equidistantly slidably connected around the outer surface of the fixed column (21); a fixed arc plate (23) is fixedly connected to the movable arm (22); two adjacent A folding arc plate (24) is fixedly connected between the fixed arc plates (23); a plurality of outer arc guide plates (2301) are provided on the outer surface of the fixed arc plate (23); a pull rod (25) is fixedly connected to the movable arm (22); a telescopic control mechanism for controlling the pull rod (25) to drive the movable arm (22) to perform telescopic movement is connected to the fixed column (21); an infusion tube (4) is fixedly connected to the suction hood (3); an arc-shaped spraying tube (42) is fixedly connected to the fixed arc plate (23); a shunt tube (41) is connected between the arc-shaped spraying tube (42) and the infusion tube (4), and the shunt tube (41) is a deformable hose.

2. A spray-type alloy production waste gas purification device according to claim 1, characterized in that: A circular telescopic baffle (211) is fixedly connected to the lower side of the fixed column (21); and the outer edge of the circular telescopic baffle (211) is fixedly connected to the lower sides of all the fixed arc plates (23).

3. A spray-type alloy production waste gas purification device according to claim 1, characterized in that: The telescopic control mechanism is composed of a rotating disk (26), a spur gear ring (27), a driving motor (28) and a spur gear (29); the rotating disk (26) is rotatably connected to the fixed column (21); the rotating disk (26) is provided with an arc guide groove (2601) structure corresponding to the number and position of the pull rod (25), and the pull rod (25) is slidably connected to the corresponding arc guide groove (2601) structure; the rotating disk (26) is fixedly connected to the spur gear ring (27); the driving motor (28) is installed on the fixed column (21); the output shaft of the driving motor (28) is fixedly connected to the spur gear (29); the spur gear (29) is meshed with the spur gear ring (27).

4. A spray-type alloy production waste gas purification device according to claim 1, characterized in that: An upwardly contracting annular step platform (204) structure is provided in the middle of the dust reduction chamber (2).

5. A spray-type alloy production waste gas purification device according to claim 4, characterized in that: An annular pipe (5) is fixedly connected to the dust reduction chamber (2); the annular pipe (5) is connected to a plurality of spray branch pipes (501) that penetrate into the interior of the dust reduction chamber (2).

6. A spray-type alloy production waste gas purification device according to claim 5, characterized in that: All the spray branches (501) of the annular pipe (5) are located on the annular step platform (204) structure in the middle of the dust suppression chamber (2).

7. A spray-type alloy production waste gas purification device according to claim 1, characterized in that: A fixing rod (61) is connected to the lower side of the fixed arc plate (23); a metal mesh (6) is fixedly connected to the fixing rod (61), and the metal mesh (6) is flush with the air inlet pipe (201); and a sliding rod (62) is fixedly connected to the metal mesh (6) and is in close contact with the inner wall of the dust suppression chamber (2).

8. A spray-type alloy production waste gas purification device according to claim 7, characterized in that: The fixed rods (61) are rotatably connected to the corresponding fixed arc-shaped plates (23); a torsion spring (63) is fixedly connected between the fixed rods (61) and the corresponding fixed arc-shaped plates (23).

9. A spray-type alloy production waste gas purification device according to claim 7, characterized in that: The slide bar (62) is made of fire-retardant rubber material.

10. A spray-type alloy production waste gas purification device according to any one of claims 1 to 9, characterized in that: A smoke concentration sensor (7) for detecting the smoke concentration in the smoke-containing exhaust gas is installed on the air intake pipe (201).

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