Roasting furnace tail gas treatment device

Abstract

The utility model belongs to the technical field of treatment devices, and particularly relates to a roasting furnace tail gas treatment device which comprises an alkaline water kettle, the lower end of the alkaline water kettle is fixedly sleeved with an air outlet cylinder, the lower end of the air outlet cylinder is fixedly connected with an air inlet pipe, a support is welded to the upper end of the air outlet cylinder, and a suction pump is fixedly installed at the upper end of the support. A suction pipe of the suction pump penetrates through the support and the air outlet cylinder, the tail end of the suction pipe is located in the alkaline water kettle, a spraying mechanism is arranged in the alkaline water kettle, a hanging rod is arranged on the spraying mechanism, and a stirring mechanism is arranged on the hanging rod. According to the utility model, alkali liquor is sucked by the suction pump and sprayed out from the hollow pipe, and the hollow pipe is driven by the motor to rotate, so that the alkaline water spray is uniformly dispersed in the alkaline water kettle, and after the alkaline water entering the bottom of the alkaline water kettle from tail gas is discharged, the alkaline water is absorbed by the sprayed alkaline water again, so that the tail gas treatment is more complete, and the pollution of the discharged tail gas to the air is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of treatment devices, and in particular relates to a roasting furnace tail gas treatment device. Background Art

[0002] The utility model patent with the patent authorization announcement number CN220288268U discloses a roasting furnace exhaust gas treatment device, including a mounting base, a first mounting frame connected to the right side of the top of the mounting base by bolts, a filter barrel connected to the top of the filter barrel by bolts, a filter plate connected to the inner cavity of the filter barrel by bolts, an automatic cleaning mechanism provided in the inner cavity of the filter barrel, and an air pump connected to the right side of the top of the closed top plate by bolts. The utility model adopts a heat recovery barrel, a second motor, a stirring rod, a heat-conducting spiral tube, a water supply pipe, a liquid level gauge and a drain valve, which can facilitate the recovery of heat in the exhaust gas and effectively prevent the loss of heat in the exhaust gas. By adopting a filter barrel, a closed top plate, a first motor, a connecting rod, a cleaning scraper, a rotating cleaning brush and a filter plate, it can facilitate the cleaning of the interior of the filter barrel and effectively prevent the accumulation of debris inside the filter barrel. However, the acidic gas in the exhaust gas is not completely removed and will cause pollution when discharged into the air. At the same time, when the device is in use, the alkali solution will react with the acidic gas, which will cause the local concentration of the alkali solution to decrease, and the absorption effect of the acidic gas will be reduced. Summary of the Invention

[0003] The purpose of the utility model is to provide a roasting furnace exhaust gas treatment device, which solves the problem that the acidic gas in the exhaust gas of the existing roasting furnace exhaust gas treatment device is not completely removed and discharged into the air, which will cause pollution. Moreover, when the device is in use, the alkali solution reacts with the acidic gas, which will cause the local concentration of the alkali solution to decrease, thereby reducing the absorption effect of the acidic gas.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a roasting furnace exhaust gas treatment device, including an alkaline water kettle, the lower end of the alkaline water kettle is fixedly sleeved with an air outlet, the lower end of the air outlet is fixedly connected to an air inlet pipe, the upper end of the air outlet is welded with a bracket, the upper end of the bracket is fixedly installed with a suction pump, the suction pipe of the suction pump passes through the bracket and the air outlet, and the end of the suction pipe is located in the alkaline water kettle, a spray mechanism is provided in the alkaline water kettle, a suspension rod is provided on the spray mechanism, and a stirring mechanism is provided on the suspension rod.

[0005] The principle of the utility model is that when in use, the tail gas enters the air outlet tube through the air inlet pipe, the tail gas in the air outlet tube enters the alkaline water at the bottom of the alkali water kettle through the air outlet pipe, and then the suction pump is started to enter the alkali water in the diversion pipe, and the alkaline water is sprayed out through the hollow pipe and evenly distributed in the alkali water kettle, so as to absorb the tail gas for the second time. The motor is started, the motor drives the connecting sleeve to rotate, the connecting sleeve drives the diversion pipe to rotate, the diversion pipe drives the hollow pipe to rotate, the alkali liquid is sucked out from the hollow pipe by the suction pump, and the hollow pipe is driven to rotate by the motor, so that the alkaline water spray is evenly distributed in the alkali water kettle. After the tail gas enters the alkaline water at the bottom of the alkali water kettle and is discharged, it is absorbed by the sprayed alkaline water again, so that the tail gas treatment is more complete and the pollution of the discharged tail gas to the air is reduced. At the same time, the diversion pipe drives the suspension rod to rotate, and the suspension rod drives the air outlet pipe to rotate to stir the alkaline water, so that the concentration of the alkaline water after the reaction is consistent, avoiding large differences in local concentration of the alkaline water, affecting the absorption of the tail gas by the alkaline water, and ensuring the absorption effect of the alkaline water on the tail gas.

[0006] The beneficial effects of the utility model are as follows: the alkali liquid is sucked out of the hollow tube by a suction pump, and the hollow tube is driven to rotate by a motor, so that the alkali water spray is evenly distributed in the alkali water kettle. After the tail gas enters the alkali water at the bottom of the alkali water kettle and is discharged, it is absorbed by the sprayed alkali water again, so that the tail gas treatment is more complete and the pollution of the discharged tail gas to the air is reduced.

[0007] The spray mechanism drives the boom to rotate, and then the outlet pipe stirs the alkaline water, so that the concentration of the alkaline water after the reaction is consistent, avoiding large differences in local concentration of the alkaline water, which affects the absorption of the tail gas by the alkaline water, and ensuring the absorption effect of the alkaline water on the tail gas.

[0008] Furthermore, four evenly distributed supporting legs are welded to the lower end of the alkaline water kettle, and a plurality of evenly distributed air outlet holes are opened at the upper end of the alkaline water kettle.

[0009] Furthermore, the spray mechanism includes a motor, a connecting sleeve, a limit pin, a shunt pipe, a hollow pipe, a sealing ring, and a sealing groove. A motor is fixedly installed at the middle of the upper end of the alkali water kettle. The output end of the motor passes through the alkali water kettle and is rotatably connected to the alkali water kettle. The outer side of the output end is slidably connected to the connecting sleeve. The lower end of the connecting sleeve is welded to a shunt pipe. The shunt pipe is welded to a suspension rod. The inner part of the shunt pipe is fixedly sleeved with a hollow pipe. The liquid outlet end of the suction pump is rotatably connected to the shunt pipe. The alkali liquid is sucked by the suction pump and sprayed out of the hollow pipe. The hollow pipe is driven to rotate by the motor, so that the alkali water spray is evenly distributed in the alkali water kettle. After the tail gas enters the alkali water at the bottom of the alkali water kettle and is discharged, it is absorbed by the sprayed alkali water again, making the tail gas treatment more complete and reducing the pollution of the exhaust gas to the air.

[0010] Furthermore, a limit pin is slidably connected inside the connecting sleeve, and the limit pin is connected to the output end through a thread. By setting the limit pin, the connecting sleeve and the output end are connected.

[0011] Furthermore, a sealing ring is fixedly sleeved inside the shunt pipe, a sealing groove is provided inside the liquid outlet, and the sealing ring and the sealing groove are rotatably connected. By arranging the sealing ring and the sealing groove in cooperation, the shunt pipe and the liquid outlet are sealed.

[0012] Furthermore, the stirring mechanism includes an air outlet pipe, a retaining sleeve, an annular groove, and an air vent. The air outlet pipe is welded to the lower end of the boom, and the retaining sleeve is rotatably connected to the outer side of the air outlet. The retaining sleeve and the air outlet pipe are fixedly connected. An annular groove is formed on the wall of the air outlet, and the annular groove and the air outlet pipe are slidably connected. The boom is driven to rotate by the spray mechanism, thereby causing the air outlet pipe to stir the alkaline water, so that the concentration of the alkaline water after reaction is consistent, avoiding large local concentration differences in the alkaline water that affect the alkaline water's absorption of the exhaust gas, and ensuring the alkaline water's absorption of the exhaust gas effectively.

[0013] Furthermore, a vent hole is provided on the wall of the gas outlet, and the vent hole is slidably connected to the annular groove. By providing the vent hole, the tail gas in the gas outlet can enter the gas outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a perspective view of the overall structure of a roasting furnace tail gas treatment device according to an embodiment of the present invention;

[0015] Figure 2 The roasting furnace tail gas treatment device of the embodiment of the present invention Figure 1 Front cross-sectional view of

[0016] Figure 3 The roasting furnace tail gas treatment device of the embodiment of the present invention Figure 2 A magnified view of point A in the figure;

[0017] Figure 4 The roasting furnace tail gas treatment device of the embodiment of the present invention Figure 2 Enlarged view of point B in . DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: alkaline water kettle 1, air outlet tube 2, air inlet pipe 3, bracket 4, suction pump 5, spray mechanism 6, suspension rod 7, stirring mechanism 8, support leg 9, air outlet 10, motor 61, connecting sleeve 62, limit pin 63, diverter pipe 64, hollow tube 65, sealing ring 66, sealing groove 67, air outlet pipe 81, baffle sleeve 82, ring groove 83, air vent 84.

[0020] like Figure 1 、 Figure 2As shown, this embodiment provides a roasting furnace exhaust gas treatment device, including an alkaline water kettle 1, the lower end of the alkaline water kettle 1 is fixedly sleeved with an air outlet pipe 2, the lower end of the air outlet pipe 2 is fixedly connected with an air inlet pipe 3, the upper end of the air outlet pipe 2 is welded with a bracket 4, the upper end of the bracket 4 is fixedly installed with a suction pump 5, the suction pipe of the suction pump 5 passes through the bracket 4 and the air outlet pipe 2, and the end of the suction pipe is located in the alkaline water kettle 1, a spray mechanism 6 is provided in the alkaline water kettle 1, a suspension rod 7 is provided on the spray mechanism 6, a stirring mechanism 8 is provided on the suspension rod 7, four evenly distributed support legs 9 are welded to the lower end of the alkaline water kettle 1, and a plurality of evenly distributed air outlet holes 10 are opened at the upper end of the alkaline water kettle 1.

[0021] like Figure 2 、 Figure 3 、 Figure 4 As shown, the spray mechanism 6 includes a motor 61, a connecting sleeve 62, a limit pin 63, a shunt pipe 64, a hollow pipe 65, a sealing ring 66, and a sealing groove 67. The motor 61 is fixedly installed at the middle of the upper end of the alkali water kettle 1. The output end of the motor 61 passes through the alkali water kettle 1 and is rotatably connected to the alkali water kettle 1. The outer side of the output end is slidably connected to the connecting sleeve 62. The inner side of the connecting sleeve 62 is slidably connected to the limit pin 63. The limit pin 63 and the output end are connected by a thread. By setting the limit pin 63, the connecting sleeve 62 and the output end are connected. The lower end of the connecting sleeve 62 is welded with a shunt pipe 64, the shunt pipe 64 and the suspension rod 7 are welded, and the inner fixed sleeve of the shunt pipe 64 is connected with a hollow pipe 65. The liquid outlet end of the suction pump 5 is rotatably connected to the diverter pipe 64. A sealing ring 66 is fixedly sleeved inside the diverter pipe 64. A sealing groove 67 is provided inside the liquid outlet end. The sealing ring 66 and the sealing groove 67 are rotatably connected. By arranging the sealing ring 66 and the sealing groove 67 in cooperation, the diverter pipe 64 and the liquid outlet end are sealed. The alkali liquid is sucked out from the hollow tube 65 by the suction pump 5, and the hollow tube 65 is driven to rotate by the motor 61, so that the alkali water spray is evenly distributed in the alkali water kettle 1. After the tail gas enters the alkali water at the bottom of the alkali water kettle 1 and is discharged, it is absorbed by the sprayed alkali water again, so that the tail gas treatment is more complete, and the pollution of the discharged tail gas to the air is reduced.

[0022] like Figure 2As shown, the stirring mechanism 8 includes an air outlet pipe 81, a baffle sleeve 82, an annular groove 83, and an air vent 84. The lower end of the suspension rod 7 is welded with the air outlet pipe 81, and the outer side of the air outlet tube 2 is rotatably connected with the baffle sleeve 82. The baffle sleeve 82 and the air outlet pipe 81 are fixedly sleeved. An annular groove 83 is provided on the cylinder wall of the air outlet tube 2, and the annular groove 83 and the air outlet pipe 81 are slidably connected. An air vent 84 is provided on the cylinder wall of the air outlet tube 2, and the air vent 84 and the annular groove 83 are slidably connected. By providing the air vent 84, the exhaust gas in the air outlet tube 2 can enter the exhaust pipe 81, and the suspension rod 7 is driven to rotate through the spray mechanism 6, so that the air outlet pipe 81 stirs the alkaline water, so that the concentration of the alkaline water after the reaction is consistent, avoiding large differences in local concentrations of the alkaline water, affecting the absorption of the exhaust gas by the alkaline water, and ensuring the absorption effect of the exhaust gas by the alkaline water.

[0023] The specific implementation process of the utility model is as follows: when in use, the tail gas enters the air outlet tube 2 through the air inlet pipe 3, and the tail gas in the air outlet tube 2 enters the alkaline water at the bottom of the alkaline water kettle 1 through the air outlet pipe 81, and then the suction pump 5 is started to enter the alkaline water into the diversion pipe 64, and the alkaline water is sprayed out through the hollow pipe 65 and evenly distributed into the alkaline water kettle 1 to perform secondary absorption of the tail gas, and the motor 61 is started, and the motor 61 drives the connecting sleeve 62 to rotate, and the connecting sleeve 62 drives the diversion pipe 64 to rotate, and the diversion pipe 64 drives the hollow pipe 65 to rotate, and the alkali solution is sucked out of the hollow pipe 65 by the suction pump 5. 5 is sprayed out, and the hollow tube 65 is driven to rotate by the motor 61, so that the alkali water spray is evenly distributed in the alkali water kettle 1. After the tail gas enters the alkali water at the bottom of the alkali water kettle 1 and is discharged, it is absorbed by the sprayed alkali water again, so that the tail gas treatment is more complete and the pollution of the discharged tail gas to the air is reduced. At the same time, the diversion pipe 64 drives the suspension rod 7 to rotate, and the suspension rod 7 drives the air outlet pipe 81 to rotate to stir the alkali water, so that the concentration of the alkali water after the reaction is consistent, avoiding large differences in the local concentration of the alkali water, which affects the absorption of the tail gas by the alkali water, and ensuring the absorption effect of the tail gas by the alkali water.

[0024] The alkali liquid is sucked by the suction pump 5 and sprayed out from the hollow tube 65, and the hollow tube 65 is driven to rotate by the motor 61, so that the alkali water spray is evenly distributed in the alkali water kettle 1. After the tail gas enters the alkali water at the bottom of the alkali water kettle 1 and is discharged, it is absorbed by the sprayed alkali water again, making the tail gas treatment more complete and reducing the pollution of the exhaust gas to the air.

[0025] The spray mechanism 6 drives the suspension rod 7 to rotate, and then the outlet pipe 81 stirs the alkaline water, so that the concentration of the alkaline water after the reaction is consistent, avoiding large differences in local concentration of the alkaline water, which affects the absorption of the tail gas by the alkaline water, and ensuring the absorption effect of the alkaline water on the tail gas.

[0026] It should be noted that, in the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0027] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A roasting furnace tail gas treatment device, comprising an alkaline water kettle, characterized in that: The lower end of the alkaline water kettle is fixedly sleeved with a gas outlet, the lower end of the gas outlet is fixedly connected to an air inlet pipe, the upper end of the gas outlet is welded with a bracket, the upper end of the bracket is fixedly installed with a suction pump, the suction pipe of the suction pump passes through the bracket and the gas outlet, and the end of the suction pipe is located in the alkaline water kettle, a spray mechanism is provided in the alkaline water kettle, a suspension rod is provided on the spray mechanism, and a stirring mechanism is provided on the suspension rod.

2. The roasting furnace tail gas treatment device according to claim 1, characterized in that: The lower end of the alkaline water kettle is welded with four evenly distributed supporting legs, and the upper end of the alkaline water kettle is provided with a plurality of evenly distributed air outlet holes.

3. The roasting furnace tail gas treatment device according to claim 1, characterized in that: The spray mechanism includes a motor, a connecting sleeve, a limit pin, a diverter pipe, a hollow pipe, a sealing ring, and a sealing groove. The motor is fixedly installed in the middle of the upper end of the alkaline water kettle. The output end of the motor passes through the alkaline water kettle and is rotatably connected to the alkaline water kettle. The outer side of the output end is slidably connected to the connecting sleeve. The lower end of the connecting sleeve is welded with a diverter pipe. The diverter pipe is welded to the suspension rod. The internal fixed sleeve of the diverter pipe is connected with a hollow pipe. The liquid outlet end of the suction pump is rotatably connected to the diverter pipe.

4. The roasting furnace tail gas treatment device according to claim 3, characterized in that: The interior of the connecting sleeve is slidably connected to a limit pin, and the limit pin is connected to the output end via a thread.

5. The roasting furnace tail gas treatment device according to claim 3, characterized in that: A sealing ring is fixedly sleeved inside the diversion pipe, a sealing groove is provided inside the liquid outlet end, and the sealing ring and the sealing groove are rotatably connected.

6. The roasting furnace tail gas treatment device according to claim 1, characterized in that: The stirring mechanism includes an air outlet pipe, a baffle sleeve, an annular groove, and an air vent. The lower end of the suspension rod is welded with an air outlet pipe, the outer side of the air outlet tube is rotatably connected with a baffle sleeve, the baffle sleeve and the air outlet pipe are fixedly sleeved, and an annular groove is opened on the tube wall of the air outlet tube, and the annular groove and the air outlet pipe are slidably connected.

7. The roasting furnace tail gas treatment device according to claim 6, characterized in that: An air vent is provided on the wall of the air outlet cylinder, and the air vent is slidably connected to the annular groove.

Images