Purging device of boiler flue gas desulfurization return feeder

Abstract

The utility model discloses a purging device of a boiler flue gas desulfurization return feeder, and belongs to the technical field of purging of desulfurization return feeders. Comprising a cloth bag dust removal device, a return feeder, a desulfurization tank, a purging tank, a flue gas pipe and a first motor, the purging tank comprises a purging device, a purging shell and an exhaust pipe, and the cloth bag dust removal device comprises a dust removal cloth bag, a cloth bag fixer, a flapping device and a dust removal shell; according to the utility model, the blowing fan is utilized to generate airflow through the blowing device, so that the airflow blows and removes dust on the dust collecting bag through the exhaust pipe, then the motor on the blowing device is utilized to drive the dust collecting bag to do centrifugal motion, residual particulate matters on the dust collecting bag are thrown out, the thrown particulate matters are blown into the material returning device by the airflow generated by the blowing fan, and then the dust collecting bag is returned to the material returning device. The unfolded flapping device is used for rotatably flapping the dust collection bag, particles on the dust collection bag are further flapped off and blown into the return feeder by airflow, and finally the return feeder conveys the particles to the desulfurization tank, so that the purposes of purging and returning the particles are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization return device purging, in particular to a purging device for a boiler flue gas desulfurization return device. Background Art

[0002] my country is one of the countries with the largest sulfur dioxide emissions in the world. With the large amount of sulfur dioxide emissions, my country's environment has also been severely damaged. In the fields of steel, electricity, metallurgy, and chemical industry, the annual sulfur dioxide emissions are very large. Therefore, these industries have also generated a huge demand for flue gas desulfurization equipment.

[0003] At present, many factories in my country have added flue gas desulfurization equipment in the production process, and with the continuous improvement of industrial level, flue gas desulfurization technology has also made great progress. However, there is still a lack of a purge device on the market that can quickly and efficiently collect the by-products generated during the desulfurization process. Summary of the invention

[0004] The utility model aims to provide a purging device for a boiler flue gas desulfurization return feeder to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a purging device of a boiler flue gas desulfurization returner comprises a bag dust collector, a returner, a desulfurization tank, a purge tank, a flue gas pipe, and a first motor; the desulfurization tank is connected to the bag dust collector through the flue gas pipe, a purge tank is installed on the top of the bag dust collector, one end of the returner provided with a feed inlet is connected to the bottom of the bag dust collector, one end of the returner provided with a discharge port is connected to the desulfurization tank, a first motor is installed at one end of the feed inlet of the returner, the first motor is used to drive the returner, the desulfurization tank is used to remove sulfur dioxide in the flue gas, and the bag dust collector is used to filter particulate matter in the flue gas (reactants of sulfur dioxide and desulfurizer and residual desulfurizer); the purge tank is used to clean the bag dust collector and blow the particulate matter filtered out by the bag dust collector into the returner, and the returner is used to transport the particulate matter back to the desulfurization tank for recycling; a control system is installed in the purge device, and the control system is used to control the operation of the bag dust collector, the returner, the purge tank, and the first motor.

[0006] The desulfurization tank discharges the flue gas into the bag dust removal device through the flue gas pipe. The particulate matter in the flue gas (the reactants of sulfur dioxide and desulfurizer and the residual desulfurizer) is filtered and blocked by the dust removal bag. The flue gas after dust removal is discharged from the exhaust pipe, and the particulate matter falls into the return device from the collection port at the bottom of the dust removal shell;

[0007] The return device includes a return shell, a first roller, a second roller, and a return belt; a first motor is installed on the return shell, the output shaft of the first motor passes through the return shell and is connected to the first roller, the second roller is rotatably connected to the return shell through a connecting rod, the first roller and the second roller are rotatably connected through the return belt, and a feed port and a discharge port are provided on the return shell.

[0008] The particles fall onto the return belt through the feed port of the return device. At this time, the control system starts the first motor, and the output shaft of the first motor drives the first roller to rotate. The first roller drives the second roller to roll through the return belt. The return belt transports the particles to the discharge port of the return device under the action of the first roller and the second roller, and the particles fall into the desulfurization tank from the discharge port.

[0009] The purge tank comprises a purge device, a purge shell and an exhaust pipe. The exhaust pipe is installed on the side wall of the purge shell, the purge device is installed on the purge shell, and the purge shell is installed on the top of the bag dust removal device.

[0010] The purge device includes a cylinder, a second motor, a purge fan, a casing, an air outlet pipe, a third motor, a gear drum, a rotating gear, a bottom support, and a partition plate; the cylinder is installed at the top of the purge casing, the cylinder output shaft passes through the purge casing and is connected to the casing, the second motor is installed in the casing, the purge fan is installed on the output shaft of the second motor, the partition plate is installed in the casing, the third motor is installed at the bottom end of the partition plate, the bottom support is installed at the bottom end of the casing, the gear drum is installed on the bottom support, the rotating gear is installed on the output shaft of the third motor, the rotating gear is meshed with the gear drum for transmission, one end of the air outlet pipe is connected to the inside of the casing, the other end of the air outlet pipe extends into the gear drum, and an annular magnet is installed at the bottom of the gear drum.

[0011] When there are too many particles on the dust bag, affecting the dust removal efficiency, the control system starts the cylinder, and the cylinder output shaft drives the casing to move downward. When the annular magnet at the bottom of the gear drum fits and adsorbs the bag holder, the control system turns on the second motor, the third motor, the fourth motor and the electric telescopic rod, and the second motor drives the purge fan to rotate. The purge fan drives the airflow from the outlet pipe to the dust bag, and the particles on the dust bag are blown off by the airflow. The particles blown off the dust bag and the particles remaining in the dust collection shell are further blown off to the return material device by the airflow; the output shaft of the third motor drives the rotating gear to rotate, and the rotating gear drives the gear drum to rotate. Under the action of magnetic force, the gear drum drives the adsorbed bag holder to rotate together, and the bag holder drives the dust bag to do centrifugal motion. The particles on the bag are thrown out and blown into the return device by the airflow; the output shaft of the electric telescopic rod extends out, and the output shaft drives one end of the second connecting rod to push forward through the second connecting ring, and the other end of the second connecting rod transmits the thrust to the first connecting rod, and the first connecting rod and the second connecting rod rotate outward on the first connecting ring and the second connecting ring respectively under the action of the thrust, and the first connecting rod drives the flapping blades to unfold, and the fourth motor rotates to drive the electric telescopic rod to rotate, and the electric telescopic rod drives the first connecting rod and the second connecting rod to rotate, and the first connecting rod drives the flapping blades to rotate, so as to achieve the purpose of flapping the dust removal bag, and the particles on the dust removal bag are further knocked off under the flapping of the flapping device, and the knocked off particles are blown into the return device by the airflow; under the joint action of the blower and the flapping device, the blowing and recovery of the particles are completed.

[0012] The bag dust removal device includes a dust removal bag, a bag holder, a beating device, and a dust removal shell; the bag holder is installed on the dust removal shell, the dust removal bag is installed on the bag holder, and the beating device is installed on the top of the dust removal shell, and the beating device is used to beat the particles remaining on the dust removal bag.

[0013] The flapping device includes a fourth motor, a connector, an electric telescopic rod, a first connecting ring, a second connecting ring, a first connecting rod, a second connecting rod, and flapping blades; the fourth motor is installed at the top of the dust removal shell, the output shaft of the fourth motor is connected to the electric telescopic rod through the connector, one end of the first connecting rod is rotatably connected to the electric telescopic rod through the first connecting ring, the other end of the first connecting rod is rotatably connected to the second connecting rod, the other end of the second connecting rod is rotatably connected to the output shaft of the electric telescopic rod through the second connecting ring, and a flapping blade is installed at the end of the first connecting rod away from the first connecting ring.

[0014] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model first utilizes the purging fan to generate airflow through the purging device, so that the airflow passes through the exhaust pipe to purge the dust bag for dust removal, and then utilizes the motor on the purging device to drive the dust bag to perform centrifugal motion, so that the residual particles on the dust bag are thrown out, and the thrown out particles are blown into the return material device by the airflow generated by the purging fan, and then the unfolded flapping device is used to rotate and flap the dust bag, so that the particles on the dust bag are further knocked off and blown into the return material device by the airflow, and finally the return material device transfers the particles to the desulfurization tank, so as to achieve the purpose of purging and returning the particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is an overall elevation view of the purge device of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the bag dust removal device and the purge tank of the utility model;

[0018] Figure 3 It is a cross-sectional elevation view of the purge device of the utility model;

[0019] Figure 4 It is a front cross-sectional view of the purge device of the utility model;

[0020] Figure 5 It is an elevation view of the flapping device of the utility model;

[0021] Figure 6 It is a front cross-sectional view of the material return device of the utility model;

[0022] In the figure: 1. Bag dust removal device; 2. Return device; 3. Desulfurization tank; 4. Purge tank; 5. Flue gas pipe; 6. First motor; 11. Dust removal bag; 12. Bag holder; 13. Beating device; 14. Dust removal shell; 41. Purge device; 42. Purge shell; 43. Exhaust pipe; 4101. Cylinder; 4102. Second motor; 4103. Purge fan; 4104. Casing; 4105. Exhaust pipe; 4106. The third motor; 4107, the gear drum; 4108, the rotating gear; 4109, the bottom bracket; 4110, the partition plate; 131, the fourth motor; 132, the connector; 133, the electric telescopic rod; 134, the first connecting ring; 135, the second connecting ring; 136, the first connecting rod; 137, the second connecting rod; 138, the flapping blade; 21, the return material shell; 22, the first roller; 23, the second roller; 24, the return material belt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: the purging device of the boiler flue gas desulfurization return device includes a bag dust removal device 1, a return device 2, a desulfurization tank 3, a purge tank 4, a flue gas pipe 5, and a first motor 6; the desulfurization tank 3 is connected to the bag dust removal device 1 through the flue gas pipe 5, the purge tank 4 is installed on the top of the bag dust removal device 1, the return device 2 is provided with a feed port at one end connected to the bottom of the bag dust removal device 1, the return device 2 is provided with a discharge port at one end connected to the desulfurization tank 3, the first motor 6 is installed at one end of the feed port of the return device 2, and the first motor 6 is used The desulfurization tank 3 is used to drive the returner 2, the desulfurization tank 3 is used to remove sulfur dioxide in the flue gas, and the bag dust collector 1 is used to filter particulate matter in the flue gas (the reactants of sulfur dioxide and desulfurizer and the residual desulfurizer); the purge tank 4 is used to clean the bag dust collector 1 and blow the particulate matter filtered by the bag dust collector into the returner 2, and the returner 2 is used to transport the particulate matter back to the desulfurization tank 3 for recycling. A control system is installed in the purge device, and the control system is used to control the operation of the bag dust collector 1, the returner 2, the purge tank 4, and the first motor 6.

[0025] The desulfurization tank 3 discharges the flue gas into the bag dust removal device 1 through the flue gas pipe 5. The particulate matter in the flue gas (the reactants of sulfur dioxide and desulfurizer and the residual desulfurizer) is filtered and blocked by the dust removal bag 11. The flue gas after dust removal is discharged from the exhaust pipe 43, and the particulate matter part falls into the return device from the collection port at the bottom of the dust removal housing 14.

[0026] The return device 2 includes a return shell 21, a first roller 22, a second roller 23, and a return belt 24; a first motor 6 is installed on the return shell 21, and the output shaft of the first motor 6 passes through the return shell 21 and is connected to the first roller 22. The second roller 23 is rotatably connected to the return shell 21 through a connecting rod, and the first roller 22 and the second roller 23 are rotatably connected through the return belt 24. A feed port and a discharge port are provided on the return shell 21.

[0027] The particles fall onto the return belt 24 through the feed port of the return device. At this time, the control system starts the first motor 6. The output shaft of the first motor 6 drives the first roller 22 to rotate. The first roller 22 drives the second roller 23 to roll through the return belt 24. The return belt 24 transports the particles to the discharge port of the return device under the action of the first roller 22 and the second roller 23. The particles fall into the desulfurization tank 3 from the discharge port.

[0028] The purge tank 4 includes a purge device 41, a purge shell 42, and an exhaust pipe 43. The exhaust pipe 43 is installed on the side wall of the purge shell 42, the purge device 41 is installed on the purge shell 42, and the purge shell 42 is installed on the top of the bag dust removal device 1.

[0029] The purge device 41 includes a cylinder 4101, a second motor 4102, a purge fan 4103, a housing 4104, an air outlet pipe 4105, a third motor 4106, a gear drum 4107, a rotating gear 4108, a bottom bracket 4109, and a partition plate 4110; the cylinder 4101 is mounted on the top of the purge housing 42, the output shaft of the cylinder 4101 passes through the purge housing 42 and is connected to the housing 4104, the housing 4104 is equipped with a second motor 4102, the output shaft of the second motor 4102 is equipped with a purge fan 4103, and the housing 4104 is equipped with a second motor 4102. 104 is installed with an interlayer plate 4110, and a third motor 4106 is installed at the bottom of the interlayer plate 4110, a bottom bracket 4109 is installed at the bottom of the casing 4104, a gear drum 4107 is installed on the bottom bracket 4109, a rotating gear 4108 is installed on the output shaft of the third motor 4106, and the rotating gear 4108 is meshed with the gear drum 4107 for transmission, one end of the air outlet pipe 4105 is connected to the interior of the casing 4104, and the other end of the air outlet pipe 4105 extends into the gear drum 4107, and a ring magnet is installed at the bottom of the gear drum 4107.

[0030] The bag dust removal device 1 includes a dust removal bag 11, a bag holder 12, a beating device 13, and a dust removal shell 14; the bag holder 12 is installed on the dust removal shell 14, the dust removal bag 11 is installed on the bag holder 12, and the beating device 13 is installed on the top of the dust removal shell 14, and the beating device 13 is used to beat the particulate matter remaining on the dust removal bag 11.

[0031] The flapping device 13 includes a fourth motor 131, a connector 132, an electric telescopic rod 133, a first connecting ring 134, a second connecting ring 135, a first connecting rod 136, a second connecting rod 137, and a flapping blade 138; the fourth motor 131 is installed at the top of the dust removal housing 14, the output shaft of the fourth motor 131 is connected to the electric telescopic rod 133 through the connector 132, one end of the first connecting rod 136 is rotatably connected to the electric telescopic rod 133 through the first connecting ring 134, the other end of the first connecting rod 136 is rotatably connected to the second connecting rod 137, the other end of the second connecting rod 137 is rotatably connected to the output shaft of the electric telescopic rod 133 through the second connecting ring 135, and a flapping fan blade is installed at one end of the first connecting rod 136 away from the first connecting ring 134.

[0032] The working principle of the utility model is as follows: the desulfurization tank 3 discharges the flue gas into the bag dust removal device 1 through the flue gas pipe 5, and the particulate matter in the flue gas (the reactant of sulfur dioxide and desulfurizer and the residual desulfurizer) is filtered and blocked by the dust bag 11, and the flue gas after dust removal is discharged from the exhaust pipe 43, and the particulate matter part falls into the return device from the collecting port at the bottom of the dust removal shell 14; the particulate matter falls on the return belt 24 through the feed port of the return device, and at this time the control system starts the first motor 6, and the output shaft of the first motor 6 drives the first roller 22 to rotate, and the first roller 22 drives the second roller 23 to roll through the return belt 24, and the return belt 24 transports the particulate matter to the discharge port of the return device under the action of the first roller 22 and the second roller 23, and the particulate matter falls into the desulfurization tank 3 from the discharge port.

[0033] When there are too many particles on the dust bag 11, which affects the dust removal efficiency, the control system starts the cylinder 4101, and the output shaft of the cylinder 4101 drives the casing 4104 to move downward. When the annular magnet at the bottom of the gear drum 4107 fits and adsorbs the bag holder 12, the control system turns on the second motor 4102, the third motor 4106, the fourth motor 131 and the electric telescopic rod 133, and the second motor 4102 drives the purge fan 4103 to rotate, and the purge fan 4103 drives the air flow from The air outlet pipe 4105 flows to the dust bag 11, and the particles on the dust bag 11 are blown off by the airflow. The particles blown off the dust bag 11 and the particles remaining in the dust removal shell 14 are further blown off to the return material device 2 by the airflow; the output shaft of the third motor 4106 drives the rotating gear 4108 to rotate, and the rotating gear 4108 drives the gear drum 4107 to rotate. Under the action of magnetic force, the gear drum 4107 drives the adsorbed bag holder 12 to rotate together, and the bag holder 12 drives the dust bag The bag 11 performs centrifugal motion, so that the particles on the bag are thrown out and blown into the return material device 2 by the air flow; the output shaft of the electric telescopic rod 133 extends, and the output shaft drives one end of the second connecting rod 137 to push forward through the second connecting ring 135, and the other end of the second connecting rod 137 transmits the thrust to the first connecting rod 136. Under the action of the thrust, the first connecting rod 136 and the second connecting rod 137 rotate outward on the first connecting ring 134 and the second connecting ring 135 respectively, and the first connecting rod 136 drives the flapping blade 138 to unfold. The fourth motor 131 rotates to drive the electric telescopic rod 133 to rotate, and the electric telescopic rod 133 drives the first connecting rod 136 and the second connecting rod 137 to rotate, and the first connecting rod 136 drives the flapping blade 138 to rotate, so as to achieve the purpose of flapping the dust bag 11. The dust bag 11 is flapped by the flapping device 13, and the particles thereon are further knocked off, and the knocked off particles are blown into the return material device 2 by the airflow; under the joint action of the sweeper 41 and the flapping device 13, the blowing and recovery of the particles are completed.

[0034] 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.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. The purging device of the boiler flue gas desulfurization return feeder is characterized by: The purge device comprises a bag dust removal device (1), a return device (2), a desulfurization tank (3), a purge tank (4), a flue gas pipe (5), and a first motor (6); the desulfurization tank (3) is connected to the bag dust removal device (1) via the flue gas pipe (5); the purge tank (4) is installed at the top of the bag dust removal device (1); one end of the return device (2) provided with a feed inlet is connected to the bottom end of the bag dust removal device (1); and one end of the return device (2) provided with a discharge outlet is connected to the desulfurization tank (3). The first motor (6) is installed at one end of the feed inlet of the return device (2), the first motor (6) is used to drive the return device (2), the desulfurization tank (3) is used to remove sulfur dioxide in the flue gas, and the bag dust removal device (1) is used to filter particulate matter in the flue gas; the purge tank (4) is used to clean the bag dust removal device (1) and blow the particulate matter filtered by the bag dust removal device into the return device (2), and the return device (2) is used to transport the particulate matter back to the desulfurization tank (3) for recycling.

2. The purging device for the boiler flue gas desulfurization return device according to claim 1 is characterized in that: The purge tank (4) comprises a purge device (41), a purge shell (42), and an exhaust pipe (43); the exhaust pipe (43) is installed on a side wall of the purge shell (42); the purge device (41) is installed on the purge shell (42); and the purge shell (42) is installed at the top end of the bag dust removal device (1).

3. The purging device of the boiler flue gas desulfurization return device according to claim 2 is characterized in that: The purge device (41) comprises a cylinder (4101), a second motor (4102), a purge fan (4103), a casing (4104), an air outlet pipe (4105), a third motor (4106), a gear drum (4107), a rotating gear (4108), a bottom bracket (4109), and a partition plate (4110); the cylinder (4101) is mounted on the top of the purge casing (42); an output shaft of the cylinder (4101) passes through the purge casing (42) and is connected to the casing (4104); a second motor (4102) is mounted in the casing (4104); a purge fan (4103) is mounted on the output shaft of the second motor (4102); and the casing (4104) comprises a plurality of air outlet pipes (4105), a third motor (4106), a gear drum (4107), a rotating gear (4108), a bottom bracket (4109), and a partition plate (4110). (4104) is installed with an interlayer plate (4110), a third motor (4106) is installed at the bottom of the interlayer plate (4110), a bottom bracket (4109) is installed at the bottom of the housing (4104), a gear drum (4107) is installed on the bottom bracket (4109), a rotating gear (4108) is installed on the output shaft of the third motor (4106), the rotating gear (4108) is meshed with the gear drum (4107) for transmission, one end of the air outlet pipe (4105) is connected to the inside of the housing (4104), and the other end of the air outlet pipe (4105) extends into the gear drum (4107), and a ring magnet is installed at the bottom of the gear drum (4107).

4. The purging device for the boiler flue gas desulfurization return device according to claim 1 is characterized in that: The bag dust removal device (1) comprises a dust removal bag (11), a bag holder (12), a beating device (13), and a dust removal shell (14); the bag holder (12) is mounted on the dust removal shell (14), the dust removal bag (11) is mounted on the bag holder (12), the beating device (13) is mounted on the top of the dust removal shell (14), and the beating device (13) is used to beat the particles remaining on the dust removal bag (11).

5. The purging device of the boiler flue gas desulfurization return device according to claim 4 is characterized in that: The flapping device (13) comprises a fourth motor (131), a connector (132), an electric telescopic rod (133), a first connecting ring (134), a second connecting ring (135), a first connecting rod (136), a second connecting rod (137), and flapping blades (138); the fourth motor (131) is mounted on the top of the dust removal housing (14); the output shaft of the fourth motor (131) is connected to the electric telescopic rod (133) via the connector (132); one end of the first connecting rod (136) is rotatably connected to the electric telescopic rod (133) via the first connecting ring (134); the other end of the first connecting rod (136) is rotatably connected to the second connecting rod (137); the other end of the second connecting rod (137) is rotatably connected to the output shaft of the electric telescopic rod (133) via the second connecting ring (135); and a flapping blade is mounted on one end of the first connecting rod (136) away from the first connecting ring (134).

6. The purging device of the boiler flue gas desulfurization return device according to claim 1 is characterized in that: The material return device (2) comprises a material return housing (21), a first roller (22), a second roller (23), and a material return belt (24); a first motor (6) is mounted on the material return housing (21); an output shaft of the first motor (6) passes through the material return housing (21) and is connected to the first roller (22); the second roller (23) is rotatably connected to the material return housing (21) via a connecting rod; the first roller (22) and the second roller (23) are rotatably connected via the material return belt (24); and a material feed port and a material discharge port are provided on the material return housing (21).

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