CN210934446U

CN210934446U - Environment-friendly smoke exhaust device for boiler

Info

Publication number: CN210934446U
Application number: CN201921900108.0U
Authority: CN
Inventors: 王新军; 李全升
Original assignee: Henan Huaren Boiler Equipment Co ltd
Current assignee: Henan Huaren Boiler Equipment Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-07
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a boiler environmental protection fume extractor, including body, second grade dust removal mechanism, the body mainly comprises quick-witted case, blast pipe, still includes one-level dust removal mechanism, one-level dust removal mechanism includes gas collection fill, main trachea, shunt tubes, slide pipe, outlet duct, dust collection box down, the welding of gas collection fill top has main trachea, there are 4 around the main trachea the shunt tubes, the welding of shunt tubes both sides has slide pipe down, slide pipe one end welding is in the outlet duct both sides down, the outlet duct upper end is connected second grade dust removal mechanism, the shunt tubes with the lower extreme welding of outlet duct is in the dust collection box top. The utility model discloses the setting of one-level dust removal mechanism can utilize the effect of gravity to collect fixed granule in the flue gas in the dust collecting tank, sets up like this and is of value to and reduces second grade dust removal mechanism work load, reduces the number of times of the change of dust removal incasement material.

Description

Environment-friendly smoke exhaust device for boiler

Technical Field

The utility model relates to an environmental protection equipment technical field especially relates to a boiler environmental protection fume extractor.

Background

The boiler is an energy conversion device, the energy input to the boiler has chemical energy in the fuel, electric energy, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, along with the improvement of environmental protection requirements, the requirement on the exhaust emission of the boiler is higher and higher, sulfur dioxide and nitrogen oxide generated by the exhaust gas of the boiler are one of the main reasons of acid rain, the carbon dioxide can aggravate the greenhouse effect, the direct emission of the gases is contrary to the environmental protection idea, but the existing boiler discharging device generally does not have a smoke discharging and filtering function, the boiler adopting the filtering also faces the problem of overhigh cost, and the re-filtering operation cannot be carried out on the exhaust gas which does not reach the standard. Aiming at the problems, the novel design is carried out on the basis of the original boiler environment-friendly smoke exhaust device.

Chinese patent publication No. CN209470242U discloses an environmental protection fume extractor for boiler, comprising an extractor hood shell, a control device, a purification device, and a discharge device, wherein the control device is arranged on the upper side of the extractor hood shell, the discharge device is arranged on one side of the control device, and the purification device is arranged on the lower surface inside the extractor hood shell. This boiler environmental protection fume extractor can handle in purifier in the lump to fixed, has increased the frequency of changing calcium oxide to calcium oxide solution exists the risk of overflowing purifier along with the increase of solid particle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a boiler environmental protection fume extractor just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a boiler environmental protection fume extractor, includes body, second grade dust removal mechanism, the body mainly comprises quick-witted case, blast pipe, still includes one-level dust removal mechanism, one-level dust removal mechanism includes gas collection fill, main trachea, shunt tubes, slide down pipe, outlet duct, dust collection box, the welding of gas collection fill top has main trachea, there are 4 around the main trachea the shunt tubes, the welding of shunt tubes both sides has slide down pipe, the welding of slide down pipe one end is in the outlet duct both sides, the outlet duct upper end is connected second grade dust removal mechanism, the shunt tubes with the lower extreme welding of outlet duct is in the dust collection box top.

Preferably, the air collecting hopper, the main air pipe, the shunt pipe, the lower sliding pipe, the air outlet pipe and the dust collecting box are communicated with each other.

Preferably, second grade dust removal mechanism includes breather pipe, dust removal case, dispersion board, fixed block, back flow fill, air pump, back flow, connection fill, the breather pipe welding is in the outlet duct top, the one end of breather pipe stretches into the dust removal case, and is located dust removal bottom of the case portion, the dust removal incasement side has through screw connection the dispersion board, the connection fill passes through screw connection and is in dust removal case top, there is the fixed block connection through bolted connection the connection fill in the connection fill top, there is the back flow fill in the fixed block top through screw connection, the connection fill passes through screw connection and is in the blast pipe is inboard, there is the air pump in the back flow fill top through bolted connection, back flow one end is passed through screw connection and is in the air outlet of air pump, the other end welding.

Preferably, the second-stage dust removing mechanism comprises a vent pipe, a dust removing box, a fixed block, a backflow hopper, an air pump, a backflow pipe, a connecting hopper, a motor, a rotating shaft and a stirring rod, wherein the vent pipe is welded above the outlet pipe, one end of the vent pipe extends into the dust removing box and is positioned at the bottom of the dust removing box, the connecting hopper is connected above the dust removing box through a screw, the fixed block is connected above the connecting hopper through a bolt, the backflow hopper is connected above the fixed block through a screw, the connecting hopper is connected inside the exhaust pipe through a screw, the air pump is connected above the backflow hopper through a bolt, one end of the backflow pipe is connected at an air outlet of the air pump through a screw, the other end of the backflow pipe is welded at one side of the vent pipe, the motor is connected at the center of the bottom of, the upper end of the rotating shaft extends into the dust removal box, and the stirring rods are welded around the rotating shaft.

Preferably, a gap exists between the backflow bucket and the connecting bucket.

Preferably, the case is arranged outside the primary dust removing mechanism and the secondary dust removing mechanism, and the exhaust pipe is welded above the case.

Has the advantages that: the setting of one-level dust removal mechanism can utilize the effect of gravity to collect fixed particle in the flue gas in the dust collecting tank, sets up like this and is of value to reducing second grade dust removal mechanism work load, reduces the number of times of the change of dust removal incasement material.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of an environment-friendly smoke exhaust device for a boiler according to the present invention;

FIG. 2 is a schematic view of the internal structure of an environment-friendly smoke exhaust device for a boiler according to the present invention;

FIG. 3 is a left side view of the interior of the environment-friendly fume extractor of the present invention;

FIG. 4 is an internal A-A sectional view of a first embodiment of an environmentally friendly fume extractor for a boiler according to the present invention;

fig. 5 is an internal a-a sectional view of a second embodiment of the environmentally friendly smoke exhaust device of the present invention.

The reference numerals are explained below:

1. a body; 2. a primary dust removal mechanism; 3. a secondary dust removal mechanism; 101. a chassis; 102. an exhaust pipe; 201. a gas collecting hopper; 202. a main air pipe; 203. a shunt tube; 204. a down slide pipe; 205. an air outlet pipe; 206. a dust collection box; 301. a breather pipe; 302. a dust removal box; 303. a dispersion plate; 304. a fixed block; 305. a reverse flow hopper; 306. an air pump; 307. a return pipe; 308. a connecting hopper; 31. a motor; 32. a rotating shaft; 33. a stirring rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1, 2, 3 and 4, an environment-friendly smoke exhaust device for a boiler comprises a body 1 and a second-stage dust removing mechanism 3, wherein the body 1 mainly comprises a case 101 and an exhaust pipe 102, and further comprises a first-stage dust removing mechanism 2, the first-stage dust removing mechanism 2 comprises a gas collecting hopper 201, a main gas pipe 202, a shunt pipe 203, a lower slide pipe 204, an outlet pipe 205 and a dust collecting box 206, the main gas pipe 202 is welded above the gas collecting hopper 201, the gas collecting hopper 201 is beneficial to smoke exhaust of the boiler, the main gas pipe 202 is connected with the shunt pipe 203, 4 shunt pipes 203 are arranged around the main gas pipe 202, the shunt pipe 203 reduces the flow velocity of smoke, part of fixed particles are discharged into the dust collecting box 206 under the action of gravity, the lower slide pipes 204 are welded on two sides of the shunt pipe 203, the lower slide pipes 204 further discharge solid particles into the dust collecting box 206, one end of each lower slide pipe 204 is welded, the upper end of an air outlet pipe 205 is connected with a secondary dust removing mechanism 3, the lower ends of a flow dividing pipe 203 and an air outlet pipe 205 are welded on the dust collecting box 206 above the dust collecting box 206 and used for collecting fixed particles, an air collecting hopper 201, a main air pipe 202, the flow dividing pipe 203, a downward sliding pipe 204, the air outlet pipe 205 and the dust collecting box 206 are communicated with each other, the secondary dust removing mechanism 3 comprises an air pipe 301, a dust removing box 302, a dispersion plate 303, a fixed block 304, a reverse flow hopper 305, an air pump 306, a return pipe 307 and a connecting hopper 308, the air pipe 301 is welded above the air outlet pipe 205, the air pipe 301 is used for conveying gas, one end of the air pipe 301 extends into the dust removing box 302 and is positioned at the bottom of the dust removing box 302, the dust removing box 302 is used for removing harmful substances such as sulfur dioxide in the gas, the dispersion, connecting hopper 308 is used for fixed block 304, there is fixed block 304 connecting hopper 308 top through bolted connection, fixed block 304 is used for fixed backflow hopper 305, there is backflow hopper 305 fixed block 304 top through bolted connection, backflow hopper 305 is used for fixed air pump 306, connecting hopper 308 is inboard at blast pipe 102 through bolted connection, backflow hopper 305 top has air pump 306 through bolted connection, air pump 306 is used for gaseous backward flow, screw connection is passed through at the air outlet of air pump 306 to back flow 307 one end, the other end welds in breather pipe 301 one side, breather pipe 301 is used for the conveying gas, there is the clearance between backflow hopper 305 and the connecting hopper 308, quick-witted case 101 sets up at one-level

dust removal mechanism

2, 3 outsides of second grade dust removal mechanism, blast pipe 102 welds in quick.

In the structure, firstly, the machine box 101 is fixed above the boiler, so that the gas collecting hopper 201 is fixed on the chimney of the boiler, then an air quality sensor is arranged at the exhaust pipe 102, calcium oxide solution is poured into the dust removing box 302, when in work, the flue gas enters the device from the gas collecting hopper 201, then the flue gas enters the shunt pipe 203 through the main gas pipe 202, because 4 groups of shunt pipes 203 are arranged, the flow velocity of the flue gas is reduced, under the action of gravity, the fixed particles enter the dust collecting box 206 from the lower port of the shunt pipe 203, the gas enters the lower sliding pipe 204 from one side of the shunt pipe 203, the separation is carried out again, so that the solid particles enter the dust collecting box 206 from the lower port of the gas outlet pipe 205, the gas enters the vent pipe 301 from the upper port of the gas outlet pipe 205 and then enters the dust removing box 302, the gas is uniformly mixed in the calcium oxide solution and then discharged out of the, in the process, harmful gas such as sulfur dioxide reacts with calcium oxide, so that the harmful gas such as sulfur dioxide in the discharged gas is discharged out of the device through the backflow hopper 305 and the exhaust pipe 102, when the discharged gas is detected to be unqualified by the air quality sensor, the air pump 306 is operated, and the air pump 306 conveys the gas out of the connection hopper 308 into the vent pipe 301 again to react with the calcium oxide solution.

Example 2

As shown in fig. 5, embodiment 2 differs from embodiment 1 in that: the two-stage dust removing mechanism 3 comprises a vent pipe 301, a dust removing box 302, a fixed block 304, a backflow bucket 305, an air pump 306, a backflow pipe 307, a connecting bucket 308, a motor 31, a rotating shaft 32 and a stirring rod 33, wherein the vent pipe 301 is welded above an air outlet pipe 205, the vent pipe 301 is used for conveying air, one end of the vent pipe 301 extends into the dust removing box 302 and is positioned at the bottom of the dust removing box 302, the dust removing box 302 is used for removing harmful substances such as sulfur dioxide in the air, the connecting bucket 308 is connected above the dust removing box 302 through screws, the connecting bucket 308 is used for fixing the fixed block 304, the fixed block 304 is connected above the connecting bucket 308 through bolts, the backflow bucket 305 is connected above the fixed block 304 through bolts, the fixing bucket 305 is used for fixing the backflow bucket 305, the connecting bucket 308 is connected inside the exhaust pipe 102 through screws, the backflow bucket 305 is used, backflow pipe 307 one end is passed through the screw connection and is in the air outlet of air pump 306, the other end welding is in breather pipe 301 one side, breather pipe 301 is used for conveying gas, motor 31 passes through bolted connection at dust removal case 302 bottom central authorities, motor 31 is used for driving pivot 32 and rotates, pivot 32 passes through gear connection around motor 31, pivot 32 is used for driving stirring rod 33 and rotates, pivot 32 upper end stretches into dust removal case 302, pivot 32 has stirring rod 33 all around the welding, stirring rod 33 makes gaseous homogeneous mixing.

In the above structure, firstly, the machine box 101 is fixed above the boiler, so that the gas collecting hopper 201 is fixed on the chimney of the boiler, then an air quality sensor is arranged at the exhaust pipe 102, calcium oxide solution is poured into the dust removing box 302, when in operation, the flue gas enters the device from the gas collecting hopper 201, then the flue gas enters the shunt pipe 203 through the main gas pipe 202, because 4 groups of shunt pipes 203 are arranged, the flow velocity of the flue gas is reduced, under the action of gravity, the fixed particles enter the dust collecting box 206 from the lower port of the shunt pipe 203, the gas enters the lower slide pipe 204 from one side of the shunt pipe 203, the separation is carried out again, so that the solid particles enter the dust collecting box 206 from the lower port of the gas outlet pipe 205, the gas enters the vent pipe 301 from the upper port of the gas outlet pipe 205, then enters the dust removing box 302, the motor 31 drives the rotating shaft 32 to rotate, further drives the stirring rod 33 to rotate, the gas is stirred by the stirring rod 33, in the process, harmful gas such as sulfur dioxide reacts with calcium oxide, so that the harmful gas such as sulfur dioxide in the discharged gas is discharged out of the device through the backflow hopper 305 and the exhaust pipe 102, when the discharged gas is detected to be unqualified by the air quality sensor, the air pump 306 is operated, and the air pump 306 conveys the gas out of the connection hopper 308 into the vent pipe 301 again to react with the calcium oxide solution.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a boiler environmental protection fume extractor, includes body (1), second grade dust removal mechanism (3), body (1) mainly comprises quick-witted case (101), blast pipe (102), its characterized in that: still include one-level dust removal mechanism (2), one-level dust removal mechanism (2) are including gas collecting bucket (201), main trachea (202), shunt tubes (203), gliding wall (204), outlet duct (205), dust collection box (206), the welding of gas collecting bucket (201) top has main trachea (202), there are 4 around main trachea (202) shunt tubes (203), the welding of shunt tubes (203) both sides has gliding wall (204) down, gliding wall (204) one end welding is in outlet duct (205) both sides down, outlet duct (205) upper end is connected second grade dust removal mechanism (3), shunt tubes (203) with the lower extreme welding of outlet duct (205) is in dust collection box (206) top.

2. The environment-friendly smoke exhaust device for the boiler according to claim 1, characterized in that: the air collecting hopper (201), the main air pipe (202), the shunt pipe (203), the lower sliding pipe (204), the air outlet pipe (205) and the dust collecting box (206) are communicated with each other.

3. The environment-friendly smoke exhaust device for the boiler according to claim 1, characterized in that: the secondary dust removing mechanism (3) comprises an air pipe (301), a dust removing box (302), a dispersion plate (303), a fixed block (304), a backflow hopper (305), an air pump (306), a backflow pipe (307) and a connecting hopper (308), wherein the air pipe (301) is welded above the air outlet pipe (205), one end of the air pipe (301) extends into the dust removing box (302) and is positioned at the bottom of the dust removing box (302), the inner side of the dust removing box (302) is connected with the dispersion plate (303) through screws, the connecting hopper (308) is connected above the dust removing box (302) through screws, the upper side of the connecting hopper (308) is connected with the fixed block (304) through bolts, the backflow hopper (305) is connected above the fixed block (304) through screws, the connecting hopper (308) is connected inside the air outlet pipe (102) through screws, the upper side of the backflow hopper (305) is connected with the air pump (306) through, one end of the return pipe (307) is connected to an air outlet of the air pump (306) through a screw, and the other end of the return pipe is welded to one side of the vent pipe (301).

4. The environment-friendly smoke exhaust device for the boiler according to claim 1, characterized in that: the secondary dust removing mechanism (3) comprises an air pipe (301), a dust removing box (302), a fixed block (304), a backflow hopper (305), an air pump (306), a return pipe (307), a connecting hopper (308), a motor (31), a rotating shaft (32) and a stirring rod (33), wherein the air pipe (301) is welded above the air outlet pipe (205), one end of the air pipe (301) extends into the dust removing box (302) and is located at the bottom of the dust removing box (302), the connecting hopper (308) is connected above the dust removing box (302) through screws, the fixed block (304) is connected above the connecting hopper (308) through bolts, the backflow hopper (305) is connected above the fixed block (304) through screws, the connecting hopper (308) is connected inside the air pipe (102) through screws, the backflow hopper (305) is connected above the backflow hopper (305) through bolts, back flow (307) one end is passed through the screw connection and is in the air outlet of air pump (306), the other end welding is in breather pipe (301) one side, motor (31) are in through bolted connection dust removal case (302) bottom central authorities, pivot (32) pass through gear connection around motor (31), pivot (32) upper end stretches into dust removal case (302), pivot (32) have all around the welding stirring rod (33).

5. An environment-friendly smoke exhaust device for a boiler according to claim 3 or 4, characterized in that: a gap exists between the backflow bucket (305) and the connecting bucket (308).

6. The environment-friendly smoke exhaust device for the boiler according to claim 1, characterized in that: the case (101) is arranged on the outer sides of the primary dust removing mechanism (2) and the secondary dust removing mechanism (3), and the exhaust pipe (102) is welded above the case (101).