CN211189581U - A wet dust collector with pretreatment at the air inlet - Google Patents

Abstract

The utility model discloses a wet dust collector for pretreating an air inlet, which belongs to the technical field of dust collectors, and adopts the technical scheme that the wet dust collector comprises a feed barrel, an air inlet pipe, a Venturi tube, a cyclone separator and a sedimentation tank which are connected in sequence, wherein the air inlet pipe is positioned on the side wall of the feed barrel, and the side wall of the Venturi tube is connected with a sprayer; a gas-water separation inner cavity is arranged in the cyclone separator, one end of the Venturi tube, which is far away from the gas inlet pipe, is communicated with the side wall of the gas-water separation inner cavity, and the top of the gas-water separation inner cavity is provided with a clean gas outlet; the sedimentation tank is positioned at the bottom of the gas-water separation inner cavity; the intake pipe can be dismantled towards venturi one end and be connected with the one-level filter screen, and the intake pipe is close to one-level filter screen one end lateral wall and can dismantle and be connected with the dust box that falls, and the dust box that falls communicates with the intake pipe. The utility model is suitable for a dust removal of the occasion that contains a large amount of large granule dusts or impurity reduces the damage of large granule dust to the gas-water separation inner chamber to improve the effect of the working life of gas-water separation inner chamber casing.

Description

A wet dust collector with pretreatment at the air inlet

technical field

The utility model relates to the technical field of dust collectors, in particular to a wet dust collector with pretreatment at an air inlet.

Background technique

Wet dust collector is commonly known as "water dust collector", which is to make dust-containing gas and liquid (usually water) in close contact, use the inertial collision of water droplets and particles or use the full mixing effect of water and dust and other functions to capture particles or make them. A device in which particles are enlarged or left in a fixed container to achieve the separation of water and dust.

Announcement No. CN204485575U Chinese patent discloses a new type of anti-corrosion wet dust collector, exhaust gas inlet, cyclone dust collector, material recovery port, pipeline, wet sprinkler, steam-water separator, automatic water replenisher, heater, wet dust collector, It consists of ash outlet, centrifugal fan, purified gas outlet and motor. The exhaust gas inlet is connected to the upper left end of the cyclone dust collector, the material recovery port is located at the lower end of the cyclone dust collector, the right side of the cyclone dust collector is connected to the upper end of the steam-water separator through a pipeline, the wet sprinkler is located inside the steam-water separator, and the heater is located at the upper end of the steam-water separator. Below the interior of the separator, the wet dust collector is connected to the bottom of the steam-water separator, the ash discharge port is connected to the bottom of the wet dust collector, the automatic water replenisher is connected to the pipeline, the right side of the steam-water separator is connected to the centrifugal fan through the pipeline, and the purified gas outlet is connected to the centrifugal fan. On the upper end, the motor is connected to the right side of the centrifugal fan.

The steam-water separator is generally equipped with a gas-water separation cavity, which is used to provide a place for dust spraying and sedimentation. In the above-mentioned prior art solution, during the dust removal process in the place with large dust particles, the large-diameter particle dust will enter the gas-water separation cavity of the steam-water separator under the drive of the centrifugal fan, and be carried out in the gas-water separation cavity. Back-and-forth collisions will greatly damage the gas-water separation cavity, thereby reducing the working life of the gas-water separation cavity shell.

Utility model content

The purpose of the utility model is to provide a wet dust collector with pretreatment at the air inlet, which has the effect of reducing the damage of large particle dust to the gas-water separation cavity, thereby increasing the working life of the gas-water separation cavity shell.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions:

A wet dust collector for pretreatment at an air inlet comprises a feeding barrel, an air inlet pipe, a venturi tube, a cyclone separator and a settling tank connected in sequence, the air inlet pipe is located on the side wall of the feeding barrel, and the A sprayer is connected to the side wall of the venturi tube; a gas-water separation cavity is arranged inside the cyclone, and one end of the venturi tube away from the air inlet pipe is communicated with the side wall of the gas-water separation cavity, and the The top of the gas-water separation cavity is provided with a clean gas outlet; the settling tank is located at the bottom of the gas-water separation cavity and communicated through a pipeline;

A support frame is fixedly connected to one end of the air intake pipe facing the venturi tube, a primary filter screen is detachably connected to the support frame, and a dust box is detachably connected to the side wall of one end of the intake pipe close to the primary filter screen. , and the dust box is communicated with the air intake pipe.

By adopting the above technical solution, the primary filter screen is used to filter the large particle dust in the air intake pipe and collect it through the dust box to prevent the large particle dust from being easily dissolved in water. The back-and-forth collision in the inner cavity, the first-level filter screen, the air intake pipe and the dust box can reduce the damage of the large particle dust to the gas-water separation cavity, thereby improving the working life of the gas-water separation cavity shell. The sprayer is used to spray and wet the dust-laden gas that enters the venturi tube, and then enters the cyclone for gas-water separation. The clean gas is discharged from the clean gas outlet, and the mud enters the sedimentation tank for sedimentation.

The utility model is further provided that the first-stage filter is made of elastic material, and a pull rope is connected to the side of the first-stage filter facing the feeding barrel, the feeding barrel is provided with a feeding port, and the pulling One end of the rope away from the primary filter mesh extends out of the feed port.

By adopting the above technical solution, the primary filter is made of elastic material, and the primary filter is pulled by a pull rope to shake off the large particles of dust stuck in the primary filter.

The utility model is further provided that a first baffle is hinged on the inner side wall of the feeding bucket facing the air inlet pipe, and the first baffle is provided with a rope passing hole through which the pulling rope can pass.

By adopting the above technical solution, in order to prevent the shaken off large particles of dust from popping out of the intake pipe and entering the feeding bucket, the hinged first baffle is rotated to the mouth of the intake pipe before pulling the pull rope.

The utility model is further provided that, one end of the venturi tube facing the gas-water separation cavity is symmetrically provided with a second baffle plate, and one end of the second baffle plate away from the venturi tube faces the gas-water separation The bottom of the cavity is inclined.

By adopting the above technical solution, the second baffle blocks the flow, and the mud water flowing out of the venturi tube is diverted toward the bottom of the gas-water separation cavity, reducing the liquid splashing around in the gas-water separation cavity due to inertia, thereby reducing Prevent mud water from sticking to the inner wall of the gas-water separation cavity to form mud scale.

The utility model is further provided that the bottom of the gas-water separation cavity is connected with an obliquely arranged guide plate, and the guide plate is located on the side away from the second baffle.

By adopting the above technical solution, the guide plate is used to guide the mud water flowing to the bottom of the gas-water separation cavity into the sedimentation tank as soon as possible.

The utility model is further configured as follows: a mud discharge pipe is connected to the bottom of the sedimentation tank; One end of the sedimentation tank is provided with a water storage tank, and the top of the water storage tank is lower than the end connected with the clear water discharge pipe and the sedimentation tank.

By adopting the above technical scheme, the sedimentation tank is used for sedimentation and separation of the liquid flowing out of the cyclone, and the clean water is located in the upper part of the sedimentation tank, and is exported to the water storage tank through the clean water discharge pipe to save the water source; the turbid mud is located in the sedimentation tank. The bottom of the pool is discharged through the mud discharge pipe.

The utility model is further provided that the water storage tank is further connected with a water inlet pipe, and a side wall of the water storage tank is connected with a suction pump, and the suction pump is connected to the sprinkler through a water pipe.

By adopting the above technical scheme, the water inlet pipe continuously replenishes clean water into the water storage tank, and the supplementary water and the clean water discharged from the sedimentation tank are mixed into the sprinkler to form the recycling of water resources and reduce the waste of water resources.

The utility model is further provided that, one end of the clean water discharge pipe facing the sedimentation tank is connected with a secondary filter screen.

By adopting the above technical solution, the secondary filter screen is used to filter the impurities in the water flowing into the clean water discharge pipe.

To sum up, the utility model has the following beneficial effects:

1. Through the setting of the first-level filter screen and the dust box, it can filter large particles of dust or impurities, reduce the damage of large particles of dust or impurities to the gas-water separation cavity, and thus improve the working life of the cyclone separator;

2. Through the setting of the first baffle and the pulling rope, it can shake off the large particles of dust stuck on the primary filter, and prevent the large particles of dust from bouncing into the feeding barrel;

3. Through the arrangement of the second baffle plate and the guide plate, the water flow flowing into the gas-water separation cavity can be blocked and diverted, and the effect of reducing liquid splashing can be achieved.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the wet dust collector in this embodiment.

Fig. 2 is a partial enlarged schematic view of part A in Fig. 1, which is used to reflect the connection relationship between the first baffle plate and the feeding barrel.

Fig. 3 is a partial enlarged schematic view of part B in Fig. 1, which is used to illustrate the connection relationship between the primary filter screen and the support frame.

Fig. 4 is a partial enlarged schematic view of part C in Fig. 1, which is used to reflect the connection relationship between the secondary filter screen and the clean water discharge pipe.

In the figure, 1, feeding barrel; 11, feeding port; 12, discharging port; 13, first baffle plate; 14, rope hole; 2, air inlet pipe; 21, supporting frame; 22, primary filter ; 23, dust box; 24, pull rope; 3, venturi tube; 31, shrinking tube; 32, throat; 33, expanding tube; 34, sprinkler; 4, cyclone separator; 41, gas-water separation cavity; 42, clean gas outlet; 43, second baffle; 44, deflector; 5, sedimentation tank; 51, mud discharge pipe; 52, clean water discharge pipe; 53, secondary filter; 6, storage Sink; 61, water inlet pipe; 62, water pump; 7, pipeline; 71, water pipe.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Example:

Referring to FIG. 1 , a wet dust collector for pretreatment at the air inlet disclosed in this embodiment includes a feeding barrel 1, an air inlet pipe 2, a venturi pipe 3, a cyclone separator 4, and a sedimentation tank that are sequentially connected and communicated with each other. 5 and cistern 6. The top of the feeding barrel 1 is provided with a feeding port 11, and the bottom is provided with a discharging port 12. The air inlet pipe 2 is located on the side wall of the feeding barrel 1. The material enters the feeding barrel 1 through the feeding port 11. During the feeding process, the dust-laden gas is sucked into the intake pipe 2, and enters the cyclone separator 4 through the venturi tube 3, so that the dust-laden gas is dedusted and filtered step by step, and the material is exported through the discharge port 12.

Referring to FIGS. 1 and 3 , preferably, in this embodiment, a support frame 21 is fixedly connected to one end of the intake pipe 2 toward the venturi tube 3 , and an elastic primary filter 22 is clamped on the support frame 21 . The intake pipe 2 The side wall is also clamped with a dust box 23, and the bottom of the dust box 23 is disposed toward the ground. The large particles of dust or impurities in the dust-containing gas are not easy to pass through the primary filter 22, are blocked in the intake pipe 2, and fall into the dust box 23, reducing the large particles of dust or impurities entering the cyclone separator 4, causing counter-cyclone Destruction of separator 4. One end of the primary filter screen 22 facing the feeding barrel 1 is connected with a pulling rope 24, and the end of the pulling rope 24 away from the primary filtering screen 22 extends out of the feeding barrel 1 through the feeding port 11, and is used for locking the primary filter screen. Shake off large particles of dust or impurities on 22. In order to prevent the large particles of dust or impurities from bouncing into the feeding barrel 1 when the primary filter screen 22 is pulled by the pulling rope 24 , a first baffle 13 (see FIG. 2 ) is hinged on the side wall of the feeding barrel 1 . The plate 13 is provided with a string hole 14 . When cleaning the primary filter screen 22, reach into the feeding bucket 1 by hand, turn the first baffle 13, so that the first baffle 13 seals the nozzle of the intake pipe 2, and the pull rope 24 passes through the rope hole 14, Then pull the pull rope 24 to make the large particles of dust or impurities bounce into the dust box 23 .

Referring to FIG. 1 , a sprayer 34 is connected to the side wall of the venturi tube 3 for spraying the dust-containing gas introduced from the air inlet pipe 2 , and the dust-containing gas is sprayed to form mud water. A gas-water separation cavity 41 is provided inside the cyclone separator 4 , a clean gas outlet 42 is opened at the top of the gas-water separation cavity 41 , and the bottom is communicated with the sedimentation tank 5 through a pipeline 7 . The end of the venturi tube 3 away from the air inlet pipe 2 is communicated with the side wall of the gas-water separation cavity 41, the muddy water flows into the gas-water separation cavity 41, and flows into the sedimentation tank 5 through the pipeline 7 for sedimentation and separation, and the clean gas passes through the cleaning process. The gas outlet 42 exits.

Referring to FIG. 1 , preferably, in the present embodiment, a second baffle 43 is provided in parallel with the inner wall of the gas-water separation cavity 41 near the venturi tube 3, and the end of the second baffle 43 away from the venturi tube 3 faces into the gas-water separation. The bottom of the cavity 41 is inclined, and the bottom of the gas-water separation cavity 41 is inclined with a guide plate 44 , and the guide plate 44 is located at a side wall away from the second baffle 43 . When the mud water flows out of the venturi 3 , it is first blocked and diverted by the second baffle 43 , part of it enters the sedimentation tank 5 quickly through the pipeline 7 , and part of the liquid is guided into the pipeline 7 through the guide plate 44 .

1 and 4, the settlement tank 5 is connected with a clear water discharge pipe 52 towards one end side wall of the cyclone 4, and the clear water discharge pipe 52 is connected with the water storage tank 6 away from one end of the settling tank 5, after the settling tank 5 is settled. The clean water flows into the water storage tank 6 for storage; the bottom of the sedimentation tank 5 is connected with a mud discharge pipe 51 , and the mud that sinks into the bottom of the sedimentation tank 5 is discharged through the mud discharge pipe 51 . Preferably, in this embodiment, a secondary filter screen 53 is provided at the connection between the clean water discharge pipe 52 and the sedimentation tank 5 to filter impurities. And in order to facilitate the clean water in the sedimentation tank 5 to flow into the water storage tank 6, the top of the water storage tank 6 is lower than the end of the clean water discharge pipe 52 where the secondary filter screen 53 is arranged.

Referring to FIG. 1 , in order to save water for dust removal, the sprinkler 34 is connected with a pump 62 through a water pipe 71 , and the pump 62 extracts the water in the water storage tank 6 to form the recycling of sedimentary water. At the same time, the water storage tank 6 is also connected with a water inlet pipe 61 for replenishing water into the water storage tank 6 .

The implementation principle of the above embodiment is as follows: the large particle dust or impurities are filtered by the primary filter 22 and remain in the dust box 23 , and the remaining dust-containing gas is passed into the Venturi tube 3 . The Venturi tube 3 consists of three parts, a shrinking tube 31 (see FIG. 1 ), a throat tube 32 (see FIG. 1 ) and an expanding tube 33 (see FIG. 1 ), which are arranged in sequence. gradually increase. Water or other liquids are sprayed from the throat 32 and atomized by being hit by high-speed airflow. The dust particles in the gas are lubricated by contact with the droplets. After entering the expansion pipe 33 , the flow velocity gradually decreases, and the dust particles adhere to each other to form mud water and enter the cyclone separator 4 . Due to the centrifugal force, the water and lubricated dust particles are thrown onto the inner wall of the gas-water separation cavity 41 and flow downward into the sedimentation tank 5, and the purified gas is discharged from the clean gas outlet 42.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a wet dust collector of inlet opening pretreatment which characterized in that: the device comprises a feed barrel (1), an air inlet pipe (2), a Venturi tube (3), a cyclone separator (4) and a sedimentation tank (5) which are connected in sequence, wherein the air inlet pipe (2) is positioned on the side wall of the feed barrel (1), and the side wall of the Venturi tube (3) is connected with a sprayer (34); a gas-water separation inner cavity (41) is formed in the cyclone separator (4), one end, far away from the air inlet pipe (2), of the Venturi pipe (3) is communicated with the side wall of the gas-water separation inner cavity (41), and a clean gas outlet (42) is formed in the top of the gas-water separation inner cavity (41); the sedimentation tank (5) is positioned at the bottom of the gas-water separation inner cavity (41);

intake pipe (2) orientation venturi (3) one end fixedly connected with braced frame (21), last the dismantling of braced frame (21) is connected with one-level filter screen (22), intake pipe (2) are close to one-level filter screen (22) one end lateral wall can be dismantled and be connected with dust box (23), just dust box (23) fall with intake pipe (2) intercommunication.

2. A wet scrubber inlet pre-treatment as set forth in claim 1, wherein: one-level filter screen (22) are elastic material, one-level filter screen (22) orientation feedwell (1) one side is connected with stay cord (24), feedwell (1) is equipped with feed inlet (11), stay cord (24) are kept away from feed inlet (11) is stretched out to one-level filter screen (22) one end.

3. A wet scrubber inlet pre-treatment as set forth in claim 2, wherein: the inner side wall of the feed barrel (1) facing the air inlet pipe (2) is hinged with a first baffle (13), and a rope threading hole (14) through which a pull rope (24) can pass is formed in the first baffle (13).

4. A wet scrubber inlet pre-treatment as set forth in claim 1, wherein: venturi tube (3) orientation gas-water separation inner chamber (41) one end symmetry is equipped with second baffle (43), just second baffle (43) are kept away from the one end orientation of venturi tube (3) gas-water separation inner chamber (41) bottom slope.

5. The inlet preconditioned wet scrubber as set forth in claim 4, wherein: the bottom of the gas-water separation inner cavity (41) is connected with a guide plate (44) which is obliquely arranged, and the guide plate (44) is positioned at one side far away from the second baffle (43).

6. A wet scrubber inlet pre-treatment as set forth in claim 1, wherein: the sedimentation tank (5) bottom is connected with mud discharging pipe (51), sedimentation tank (5) are close to the one end lateral wall of cyclone (4) bottom is connected with clear water discharging pipe (52), clear water discharging pipe (52) are kept away from sedimentation tank (5) one end is provided with catch basin (6), just catch basin (6) top is less than the one end that clear water discharging pipe (52) and sedimentation tank (5) are connected.

7. The inlet preconditioned wet scrubber as set forth in claim 6, wherein: the water storage tank (6) is further connected with a water inlet pipe (61), a side wall of one side of the water storage tank (6) is connected with a water suction pump (62), and the water suction pump (62) is connected with the sprayer (34) through a water pipe (71).

8. A wet scrubber inlet pre-treatment as set forth in claim 7, wherein: the clean water discharging pipe (52) faces one end of the sedimentation tank (5) and is connected with a secondary filter screen (53).

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