Flue gas treatment equipment for flame cutting

Abstract

The invention relates to the technical field of flue gas treatment, in particular to flue gas treatment equipment for flame cutting, which comprises a cross beam and a flame spray gun, a first connecting seat is arranged on the cross beam, the flame spray gun is arranged on the first connecting seat, a second connecting seat is arranged on the flame spray gun, and a treatment mechanism is arranged at the bottom of the second connecting seat. A connecting cover is arranged on the second connecting base, and an exhaust mechanism is arranged on one side of the connecting cover. The device has the beneficial effects that when the flame spray gun is used for carrying out flame cutting on a steel plate, smoke and an alkaline solution form convection, the contact area between the smoke and the alkaline solution is increased, smoke particles in the smoke can be conveniently treated, and therefore the dust removal and purification effects on the smoke are improved; the existence time of the same part of alkaline solution on the spiral plate is prolonged, and the contact time between the flue gas and the same part of alkaline solution is prolonged, so that the utilization rate of the alkaline solution is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fume treatment, and in particular to a fume treatment device for flame cutting. Background Art

[0002] Flame cutting is a common method for rough processing of steel plates. Flame cutting is gas cutting. Traditionally, acetylene gas was used for cutting, and later propane was used. Now natural gas cutting has emerged. Natural gas flame cutting generally adds natural gas additives to generate a new type of flame cutting gas. During the flame cutting process, a large amount of smoke is often generated. This smoke is not only harmful to the human body, but also poses a hidden danger to the health of the operating staff, and also pollutes the environment. At this time, a device is needed to collect and purify the smoke suspended in the air.

[0003] A flame cutting machine crossbeam with a smoke and dust handling function disclosed in Chinese patent CN215238425U includes a beam body, a transverse groove is provided in the middle of the beam body, a vertical groove is provided in the bottom surface of the transverse groove, a slider is slidably connected inside the transverse groove, connecting rods are welded to the left and right sides of the slider, a supporting rod is welded to the bottom of the slider, a lead screw is rotatably connected between the front and rear ends inside the transverse groove, a stepping motor is connected to the rear end surface of the beam body by screws, slide rails are welded to the upper and lower ends of the left and right sides of the beam body, a support plate is slidably connected between the slide rails at the upper and lower ends of the left side surface, a flame spray gun is installed on the left side of the support plate, a water tank is slidably connected between the slide rails at the upper and lower ends of the right side surface, and a dust exhaust pipe is plugged into the air outlet of the air pump.

[0004] However, compared with the prior art and the comparative scheme, it can be seen that the flue gas treatment device still has the following problems during actual use:

[0005] In the flue gas treatment device, the flue gas enters the solution in the water tank through the dust suction pipe and the air pump. The large particle smoke dust inside the air pump is processed in large quantities, which increases the wear between the internal components of the air pump and reduces the service life. The contact area between the solution and the flue gas is small, and the dust removal and purification effect on the flue gas is poor. Summary of the invention

[0006] The present invention provides a fume treatment device for flame cutting to solve the above technical problems.

[0007] The invention discloses a smoke treatment device for flame cutting, which adopts the following technical scheme: it comprises a crossbeam and a flame spray gun, wherein a first connecting seat is arranged on the crossbeam, the flame spray gun is arranged on the first connecting seat, a second connecting seat is arranged on the flame spray gun, a processing mechanism is arranged at the bottom of the second connecting seat, a connecting cover is arranged on the second connecting seat, and an exhaust mechanism is arranged on one side of the connecting cover;

[0008] The processing mechanism includes a spiral plate, a sleeve is arranged on the top of the spiral plate, a rotating ring is arranged at one end of the sleeve away from the spiral plate, and a baffle is arranged below the spiral plate;

[0009] The spiral plate includes an upper portion, a middle portion and a lower portion, the middle portion is provided with a through hole, the outer side of the lower portion is provided with a groove, the shape of the spiral plate is conical, the pitch of the spiral plate gradually decreases from top to bottom, and the horizontal height of the inner side of the spiral plate is greater than the horizontal height of the outer side of the spiral plate;

[0010] An air extraction pipe, a water extraction pipe and a sewage discharge pipe are arranged on the connection cover, and a collecting tank is arranged inside the connection cover.

[0011] Furthermore, a connecting frame is provided on the first connecting seat, a water tank is provided on one side of the connecting frame, a water filling pipe and a drain pipe are provided on the water tank, a water pump is provided on the connecting frame, an input end of the water pump is connected to the water tank, a first connecting pipe is provided on the water tank, and a one-way valve is provided on the first connecting pipe.

[0012] Furthermore, the second connecting seat includes a first half seat and a second half seat, a screw is hinged on one side of the second half seat, a fixing ring is arranged on the screw, a connecting head is arranged on the first half seat, a cavity is opened inside the first half seat, a water inlet hole is opened at the bottom of the first half seat, a slide groove is opened at the bottom of the inner side of the first half seat, and the structure of the second half seat is the same as that of the first half seat.

[0013] Furthermore, the exhaust mechanism includes an air pump, a second connecting pipe is provided at the input end of the air pump, a connecting hole is opened on the second connecting pipe, a collecting bottle is provided at one end of the second connecting pipe away from the air pump, and an exhaust pipe is provided at the output end of the air pump.

[0014] Furthermore, a swivel is arranged inside the slide groove, and the sleeve is rotatably connected to the second connecting seat through the swivel.

[0015] Furthermore, there are multiple baffles, which are evenly distributed below the spiral plate.

[0016] Furthermore, one end of the first connecting pipe away from the water tank is connected to the water pumping pipe.

[0017] Furthermore, the horizontal height of the collecting tank near the sewage pipe is lower than the horizontal height of the collecting tank near the water pumping pipe.

[0018] Furthermore, the output end of the water pump is connected to the connector via a connecting hose.

[0019] Furthermore, one end of the exhaust pipe away from the connecting cover is connected to the second connecting pipe through the connecting hole.

[0020] The beneficial effects of the present invention are as follows: when a flame spray gun is used to flame cut a steel plate, convection is formed between the flue gas and the alkaline solution, the contact area between the flue gas and the alkaline solution is increased, the smoke dust particles in the flue gas are processed conveniently, and thus the dust removal and purification effects of the flue gas are improved; the spiral plate is driven to rotate by the flue gas, so that the existence time of the same part of the alkaline solution on the spiral plate is increased, the contact time between the flue gas and the same part of the alkaline solution is increased, and thus the utilization rate of the alkaline solution is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0023] Figure 2 It is a partial cross-sectional structural schematic diagram of an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the flow trajectory of the alkaline solution during the working process of the embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the flow trajectory of smoke during the working process of an embodiment of the present invention;

[0026] Figure 5 This is a schematic structural diagram of a first connecting socket according to an embodiment of the present invention;

[0027] Figure 6 is a schematic cross-sectional structural diagram of a second connecting socket according to an embodiment of the present invention;

[0028] Figure 7 It is a structural schematic diagram of a processing mechanism of an embodiment of the present invention;

[0029] Figure 8 It is a schematic cross-sectional structure diagram of a connecting cover in a first viewing angle according to an embodiment of the present invention;

[0030] Fig. 9 It is a schematic cross-sectional structure diagram of the connecting cover of the embodiment of the present invention from a second viewing angle;

[0031] Fig.10 It is a schematic structural diagram of the exhaust mechanism of an embodiment of the present invention.

[0032] In the figure: 1, beam; 2, first connecting seat; 201, connecting frame; 202, water storage tank; 203, water supply pipe; 204, drainage pipe; 205, water pump; 206, first connecting pipe; 207, one-way valve; 3, flame spray gun; 4, second connecting seat; 401, first half seat; 402, second half seat; 403, screw; 404, fixing ring; 405, connector; 406, cavity; 407, water inlet hole; 408, slide; 5, Processing mechanism; 51, spiral plate; 511, upper part; 512, middle part; 513, lower part; 514, through hole; 515, groove; 52, sleeve; 53, swivel; 54, baffle; 6, connecting cover; 601, exhaust pipe; 602, water suction pipe; 603, sewage pipe; 604, collecting tank; 7, exhaust mechanism; 701, air pump; 702, second connecting pipe; 703, connecting hole; 704, collecting bottle; 705, exhaust pipe. DETAILED DESCRIPTION

[0033] 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.

[0034] An embodiment of a smoke treatment device for flame cutting of the present invention is as follows Figures 1 to 4 As shown, it includes a crossbeam 1 and a flame spray gun 3, a first connecting seat 2 is arranged on the crossbeam 1, a slide rail is arranged on the crossbeam 1, the first connecting seat 2 is slidably connected to the crossbeam 1 through the slide rail, the flame spray gun 3 is arranged on the first connecting seat 2, a second connecting seat 4 is arranged on the flame spray gun 3, a processing mechanism 5 is arranged at the bottom of the second connecting seat 4, a connecting cover 6 is arranged on the second connecting seat 4, and the connecting cover 6 is detachably connected to the second connecting seat 4. In this embodiment, the connecting cover 6 is threadedly connected to the second connecting seat 4, and an exhaust mechanism 7 is arranged on one side of the connecting cover 6.

[0035] like Figure 5 As shown, a connecting frame 201 is provided on the first connecting seat 2, and the connecting frame 201 is fixedly installed on the first connecting seat 2 by bolts. A water tank 202 is provided on one side of the connecting frame 201, and a water supply pipe 203 and a drainage pipe 204 are provided on the water tank 202. A water pump 205 is provided on the connecting frame 201, and an input end of the water pump 205 is connected to the water tank 202. A first connecting pipe 206 is provided on the water tank 202, and a one-way valve 207 is provided on the first connecting pipe 206.

[0036] like Figure 6As shown, the second connecting seat 4 includes a first half seat 401 and a second half seat 402 which are hinged to each other to form a tube shape, a screw rod 403 is hinged on one side of the second half seat 402, a fixing ring 404 is arranged on the screw rod 403, a connector 405 is arranged on the first half seat 401, the output end of the water pump 205 is connected to the connector 405 through a connecting hose, a cavity 406 is provided inside the first half seat 401, the connector 405 is communicated with the cavity 406, a water inlet hole 407 is provided at the bottom of the first half seat 401, a slide groove 408 is provided at the bottom of the inner side of the first half seat 401, and the structure of the second half seat 402 is the same as that of the first half seat 401.

[0037] like Figure 3 , Figure 6 and Figure 7 As shown, the processing mechanism 5 includes a spiral plate 51, a sleeve 52 is provided on the top of the spiral plate 51, a rotating ring 53 is provided at one end of the sleeve 52 away from the spiral plate 51, a ball for reducing friction is provided on the rotating ring 53, the rotating ring 53 is arranged inside the slide groove 408, the sleeve 52 is rotatably connected to the second connecting seat 4 through the rotating ring 53, and a baffle 54 is provided below the spiral plate 51, and the number of the baffles 54 is multiple and evenly distributed below the spiral plate 51;

[0038] like Figure 7 As shown, the spiral plate 51 includes an upper portion 511, a middle portion 512 and a lower portion 513. A through hole 514 is provided on the middle portion 512, and a groove 515 is provided at the outer edge of the lower portion 513. The shape of the spiral plate 51 is conical, and the pitch of the spiral plate 51 gradually decreases from top to bottom. The horizontal height of the inner side of the spiral plate 51 is greater than the horizontal height of the outer side of the spiral plate 51.

[0039] like Figure 3 , Figure 8 and Fig. 9 As shown, the connecting cover 6 is provided with an air extraction pipe 601, a water extraction pipe 602 and a sewage discharge pipe 603, the end of the first connecting pipe 206 away from the water storage tank 202 is connected to the water extraction pipe 602, and a collecting tank 604 is provided inside the connecting cover 6. Fig. 9 As shown, the horizontal height of the collecting tank 604 close to the sewage pipe 603 is lower than the horizontal height of the collecting tank 604 close to the water pumping pipe 602.

[0040] like Figure 4 , Figure 8 and Fig.10As shown, the exhaust mechanism 7 includes an air pump 701, a second connecting pipe 702, a connecting hole 703, a collecting bottle 704 and an exhaust pipe 705. The input end of the air pump 701 is provided with the second connecting pipe 702, and the second connecting pipe 702 is provided with a connecting hole 703. The end of the exhaust pipe 601 away from the connecting cover 6 is connected to the second connecting pipe 702 through the connecting hole 703. The end of the second connecting pipe 702 away from the air pump 701 is provided with a collecting bottle 704, and the output end of the air pump 701 is provided with an exhaust pipe 705.

[0041] The working process is as follows:

[0042] S1. Before use, add alkaline liquid for flue gas treatment into the water storage tank 202 through the water adding pipe 203;

[0043] S2. When the flame spray gun 3 is used to flame cut the steel plate, the water pump 205 is started, and the water pump 205 pumps the alkaline liquid in the water tank 202 into the cavity 406. The alkaline liquid falls on the processing mechanism 5 through the water inlet hole 407, then flows downward along the spiral plate 51, and finally falls into the collection tank 604 from the groove 515 at the edge of the lower layer 513 along the inner wall of the connecting cover 6;

[0044] S3. Due to the extraction of the water pump 205, negative pressure is formed inside the water storage tank 202, and the alkaline liquid in the collecting tank 604 is pumped back into the water storage tank 202 through the pumping pipe 602 and the first connecting pipe 206. The one-way valve 207 on the first connecting pipe 206 can prevent the alkaline liquid in the water storage tank 202 from flowing back into the collecting tank 604, thereby forming a circulation of the alkaline liquid.

[0045] S4, start the air pump 701, so that negative pressure is formed between the connecting cover 6 and the upper part 511, and extract the smoke generated when the flame spray gun 3 performs flame cutting on the steel plate. Since a baffle 54 is provided under the spiral plate 51, the smoke will push the baffle 54 when flowing along the spiral plate 51, and the baffle 54 drives the spiral plate 51 to rotate;

[0046] S5. When the alkaline liquid and the flue gas pass through the middle portion 512, part of the alkaline liquid falls to the lower portion 513 through the through hole 514, and part of the flue gas reaches the upper portion 511 through the through hole 514. When the alkaline liquid and the flue gas pass through the through hole 514, the alkaline liquid and the flue gas contact each other and increase the contact area, thereby improving the dust removal effect on the flue gas;

[0047] S6, the alkaline liquid flows from top to bottom at the spiral plate 51, and the flue gas flows from bottom to top at the spiral plate 51, forming convection, so that the alkaline liquid absorbs impurities in the flue gas;

[0048] S7. Since the spiral plate 51 is driven to rotate by the flue gas, the existence time of the same part of the alkaline solution on the spiral plate 51 is increased, thereby increasing the contact time between the flue gas and the same part of the alkaline solution, thereby increasing the utilization rate of the alkaline solution;

[0049] S8, the smoke in the treated flue gas is mixed with the alkaline solution, and falls into the collecting tank 604 with the flow of the alkaline solution. The horizontal height of the collecting tank 604 near the sewage pipe 603 is lower than the horizontal height of the collecting tank 604 near the water pumping pipe 602, so that the smoke particles mixed with the alkaline solution gather at the sewage pipe 603;

[0050] S9. The treated flue gas enters the second connecting pipe 702 through the exhaust pipe 601. The small droplets mixed in the air flow hit the inner wall of the second connecting pipe 702. After a plurality of small droplets gather, they fall into the collecting bottle 704 due to gravity. The air flow is pumped by the air pump 701 and discharged from the exhaust pipe 705, preventing the droplets from entering the air pump 701 with the air flow, thereby increasing the service life of the air pump 701.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A smoke treatment device for flame cutting, characterized in that: It comprises a crossbeam and a flame spray gun, wherein a first connection seat is arranged on the crossbeam, the flame spray gun is arranged on the first connection seat, a second connection seat is arranged on the flame spray gun, a processing mechanism is arranged at the bottom of the second connection seat, a connection cover is arranged on the second connection seat, and an exhaust mechanism is arranged on one side of the connection cover; The processing mechanism comprises a spiral plate, a sleeve is arranged on the top of the spiral plate, a rotating ring is arranged at one end of the sleeve away from the spiral plate, and a baffle is arranged below the spiral plate; The spiral plate comprises an upper portion, a middle portion and a lower portion, the middle portion is provided with a through hole, the outer side of the lower portion is provided with a groove, the spiral plate is conical in shape, the pitch of the spiral plate gradually decreases from top to bottom, and the horizontal height of the inner side of the spiral plate is greater than the horizontal height of the outer side of the spiral plate; The connecting cover is provided with an air extraction pipe, a water extraction pipe and a sewage discharge pipe, and a collecting tank is provided inside the connecting cover.

2. The smoke treatment equipment for flame cutting according to claim 1, characterized in that: A connecting frame is provided on the first connecting seat, a water tank is provided on one side of the connecting frame, a water supply pipe and a drainage pipe are provided on the water tank, a water pump is provided on the connecting frame, an input end of the water pump is connected to the water tank, a first connecting pipe is provided on the water tank, and a one-way valve is provided on the first connecting pipe.

3. The smoke treatment equipment for flame cutting according to claim 2, characterized in that: The second connecting seat includes a first half seat and a second half seat, a screw is hinged on one side of the second half seat, a fixing ring is arranged on the screw, a connecting head is arranged on the first half seat, a cavity is opened inside the first half seat, a water inlet hole is opened at the bottom of the first half seat, a slide groove is opened at the bottom of the inner side of the first half seat, and the structure of the second half seat is the same as that of the first half seat.

4. The smoke treatment equipment for flame cutting according to claim 1, characterized in that: The exhaust mechanism includes an air pump, a second connecting pipe is provided at the input end of the air pump, a connecting hole is opened on the second connecting pipe, a collecting bottle is provided at one end of the second connecting pipe away from the air pump, and an exhaust pipe is provided at the output end of the air pump.

5. The smoke treatment equipment for flame cutting according to claim 3, characterized in that: The rotating ring is arranged inside the sliding groove, and the sleeve is rotatably connected to the second connecting seat through the rotating ring.

6. The smoke treatment equipment for flame cutting according to claim 1, characterized in that: There are multiple baffles, which are evenly distributed below the spiral plate.

7. The smoke treatment equipment for flame cutting according to claim 2, characterized in that: One end of the first connecting pipe away from the water storage tank is connected to the water pumping pipe.

8. The smoke treatment equipment for flame cutting according to claim 1, characterized in that: The horizontal height of the collecting tank close to the sewage pipe is lower than the horizontal height of the collecting tank close to the water pumping pipe.

9. The smoke treatment equipment for flame cutting according to claim 3, characterized in that: The output end of the water pump is connected to the connector via a connecting hose.

10. The smoke treatment equipment for flame cutting according to claim 4, characterized in that: One end of the exhaust pipe away from the connecting cover is connected to the second connecting pipe through the connecting hole.

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