CN215742659U - Dust collecting device - Google Patents

Abstract

The application discloses dust collection device includes: the first dust chamber is provided with a gas inlet, a wind shield and a dust collecting hopper, the gas inlet is arranged on the side wall of the first dust chamber, the wind shield is arranged opposite to the gas inlet, and the dust collecting hopper is arranged below the wind shield; the second dust removal chamber is provided with a gas outlet, a header, an impact pipe and a dust catching pool, the gas outlet is arranged at the upper part of the second dust removal chamber, the header is arranged at the middle part of the second dust removal chamber and is communicated with the first dust removal chamber, the dust catching pool is arranged below the header and contains liquid, the impact pipe is connected with the header, the outlet is opposite to the dust catching pool, and the dust catching pool is provided with a stirrer; and the sedimentation tank is communicated with the dust catching tank and forms a liquid circulation loop so that liquid in the dust catching tank enters the sedimentation tank for sedimentation and then flows back to the dust catching tank. The dust collection device can save water for dust removal and reduce dust removal cost.

Description

Dust collecting device

Technical Field

The utility model belongs to the technical field of dust removal, and particularly relates to a dust collecting device.

Background

In a thermal power plant or a coal water slurry production plant, dust in a working environment needs to be collected and treated so as to avoid causing dust pollution and influencing the health of the environment and workers. Among the currently used dust removal methods, there is a water-impact dust removal method, which sprays dust-containing airflow into liquid at a high speed, and stimulates a large amount of foam and water droplets to wrap the dust in the airflow by impacting the liquid surface, thereby achieving the purpose of purifying and removing dust. The method has good dust removal effect, but the dust removal effect needs to be ensured by frequently replacing liquid (usually water), and particularly in the environment of a coal pulverizer and the like, the dust amount is large, and the dust removal cost needs to be considered.

Accordingly, the prior art is in need of improvement and development.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a dust collection device, can practice thrift the water of removing dust, reduces the dust removal cost.

In order to solve its technical problem, the dust collection device that this application embodiment provided includes:

the dust collector comprises a first dust chamber, a second dust chamber and a dust collecting hopper, wherein the first dust chamber is provided with a gas inlet, a wind shield and the dust collecting hopper, the gas inlet is formed in the side wall of the first dust chamber, the wind shield is arranged opposite to the gas inlet, the dust collecting hopper is arranged below the wind shield, so that gas is blown to the wind shield when entering the first dust chamber from the gas inlet, and large-particle dust in the gas is blocked by the wind shield and falls into the dust collecting hopper;

the second dust removal chamber is provided with a gas outlet, a header, an impact pipe and a dust catching pool, the gas outlet is formed in the upper portion of the second dust removal chamber, the header is formed in the middle of the second dust removal chamber and communicated with the first dust removal chamber, the dust catching pool is arranged below the header and filled with liquid, the impact pipe is connected with the header, the outlet is opposite to the dust catching pool, so that the gas is sprayed out through the impact pipe to impact the liquid level in the dust catching pool, and the dust catching pool is provided with a stirrer;

and the sedimentation tank is communicated with the dust catching tank and forms a liquid circulation loop so that liquid in the dust catching tank flows back into the dust catching tank after entering the sedimentation tank for sedimentation.

Furthermore, the wind deflectors are provided with a plurality of wind deflectors which are distributed in a staggered array.

Further, the wind deflector is disposed to be inclined, and an upper portion of the wind deflector is inclined with respect to a lower portion thereof in a direction in which the gas enters the first dust chamber.

Furthermore, the first dust removal chamber is provided with a micro-fog spray head, and the micro-fog spray head is arranged at the top of the first dust removal chamber and corresponds to the wind shield.

Furthermore, along the horizontal direction, the deep bead is equipped with a plurality of rows, the quantity of little fog shower nozzle is the same with the row number of deep bead, in the vertical direction, each row the deep bead corresponds one little fog shower nozzle.

Furthermore, the sedimentation tank is located below the dust catching tank, a liquid inlet pipe and a liquid outlet pipe are communicated between the sedimentation tank and the dust catching tank, a first valve body used for controlling liquid flow is arranged on the liquid inlet pipe, one end of the liquid inlet pipe is communicated with the lower portion of the dust catching tank, the other end of the liquid inlet pipe is communicated with the middle upper portion of the sedimentation tank, a second valve body and a first water supply pump used for controlling liquid flow are arranged on the liquid outlet pipe, one end of the liquid outlet pipe is communicated with the middle upper portion of the dust catching tank, and the other end of the liquid outlet pipe is communicated with the middle upper portion of the sedimentation tank.

Further, a concentration detector is arranged in the sedimentation tank and used for detecting the concentration of the liquid in the sedimentation tank.

The utility model provides a dust collection device, detach the big granule dust in the gas earlier through the deep bead, reduce the work load of catching liquid in the dirt pond, the liquid that contains the dust in to catching the dirt pond through the sedimentation tank deposits the purification, make liquid can cyclic utilization, the stirring through the agitator avoids the dust to deposit at catching the dirt pond, but the sedimentation tank that gets into along with the rivers deposits, ensure the cyclic utilization effect of liquid, thereby reduce the change number of times of liquid, do benefit to the saving water for dust removal, reduce the dust removal cost.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a dust collecting device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of another embodiment of a dust collecting device according to an embodiment of the present disclosure.

Description of reference numerals: 100. A first dust chamber; 110. a gas inlet; 120. a wind deflector; 130. a dust collecting hopper; 140. a micro-mist spray head; 200. a second dust chamber; 210. a gas outlet; 220. a header; 230. an impingement tube; 240. a dust catching pool; 250. a stirrer; 260. a water baffle; 270. an overflow pipe; 300. a sedimentation tank; 310. a liquid inlet pipe; 320. a liquid outlet pipe; 330. A first tank body; 340. A second tank body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used 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 thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

As shown in fig. 1, the dust collecting device of the present invention comprises:

a first dust chamber 100, wherein the first dust chamber 100 is provided with a gas inlet 110, a wind shield 120 and a dust hopper 130, the gas inlet 110 is arranged on a side wall of the first dust chamber 100, the wind shield 120 is arranged opposite to the gas inlet 110, and the dust hopper 130 is arranged below the wind shield 120, so that when gas enters the first dust chamber 100 from the gas inlet 110, the gas is blown to the wind shield 120, and large-particle dust in the gas is blocked by the wind shield 120 and falls into the dust hopper 130;

a second dust chamber 200, wherein the second dust chamber 200 is provided with a gas outlet 210, a header 220, an impact pipe 230 and a dust collection tank 240, the gas outlet 210 is arranged at the upper part of the second dust chamber 200, the header 220 is arranged at the middle part of the second dust chamber 200 and communicated with the first dust chamber 100, the dust collection tank 240 is arranged below the header 220 and contains liquid, the impact pipe 230 is connected with the header 220, the outlet is opposite to the dust collection tank 240, so that the gas is sprayed out through the impact pipe 230 and impacts the liquid level in the dust collection tank 240, and the dust collection tank 240 is provided with a stirrer 250;

and the sedimentation tank 300 is communicated with the dust catching tank 240 and forms a liquid circulation loop, so that the liquid in the dust catching tank 240 enters the sedimentation tank 300 for sedimentation and then flows back to the dust catching tank 240.

In specific application, a dust collector and other equipment can be connected to the gas inlet 110 to suck dust-containing gas into the first dust chamber 100, the gas enters the first dust chamber 100 and then collides with the wind shield 120 opposite to the front surface, large-particle dust falls into the dust hopper 130 below along with the collision, the workload of liquid in the dust collecting pool 240 is reduced, the small-particle dust continues to enter the header 220 along with the gas and is ejected to the dust collecting pool 240 at a high speed through the impact pipe 230 to collide with the liquid surface in the dust collecting pool 240 to excite a large amount of water drops and foam, the water drops and the foam wrap the dust and fall into the dust collecting pool 240, and the purified gas is discharged through the gas outlet 210, so that the effect of purifying the gas is realized; the dust catching pool 240 is communicated with the sedimentation pool 300, so that liquid in the dust catching pool 240 can flow into the sedimentation pool 300 for sedimentation, the liquid purified by sedimentation flows back to the dust catching pool 240 for secondary purification, in the process, dust is prevented from settling in the dust catching pool 240 through stirring of the stirrer 250 and enters the sedimentation pool 300 along with water flow for sedimentation, the recycling effect of the liquid is ensured, therefore, the purification effect is ensured through purification and reutilization of the liquid in the dust catching pool 240, replacement of new liquid is not needed at each time, the water for dust removal is effectively saved, and the dust removal cost is reduced.

Specifically, the agitator 250 is disposed at the lower portion of the dust-catching tank 240, and may be connected to the bottom wall of the dust-catching tank 240 to extend upward, or may be connected to the side wall of the lower portion of the dust-catching tank 240 to extend horizontally.

Specifically, a centrifugal fan may be disposed at the gas outlet 210, which is beneficial to discharge purified gas, the stirrer 250, the header 220 and the impingement tube 230 are implemented by the existing technical means, for example, the impingement tube 230 uses a nozzle, in a specific application, the number of the impingement tube 230 may be set according to the requirement, and the header 220 converges the gas in the first dust chamber 100 and then flows to each impingement tube 230 for ejection.

In some preferred embodiments, there are several wind deflectors 120, and several wind deflectors 120 are arranged in a staggered array. In specific application, the wind deflectors 120 are distributed in a staggered array, that is, the gaps between the rear row of wind deflectors 120 and the front row of wind deflectors 120 are opposite, when airflow flows from the gap between the front row of wind deflectors 120 to the rear row of wind deflectors 120, the airflow can impact the wind deflectors 120 again, large-particle dust in the airflow can be collected as much as possible through multiple impacts, the workload of liquid in the dust collecting pool 240 is reduced to the greatest extent, and the purification effect of the air is improved. Specifically, the number of rows of wind deflectors 120 and the number of wind deflectors 120 in each row may be adjusted according to actual conditions, specifically, in the present embodiment, the wind deflectors 120 are provided with three rows, wherein the number of the first row and the last row of wind deflectors 120 is three, and the number of the middle row of wind deflectors 120 is two.

In some preferred embodiments, the wind deflector 120 is disposed obliquely, and an upper portion of the wind deflector 120 is inclined with respect to a lower portion thereof in a direction in which the gas enters the first dust chamber 100. Through the technical scheme, after the air flow impacts the wind shield 120, the air flow flows backwards to the wind shield 120 along the upward trend along the inclined direction of the wind shield 120, and after the large-particle dust is blocked, the large-particle dust slides down along the wind shield 120 under the action of self gravity, so that the separation of the large-particle dust from the air flow is facilitated.

In some preferred embodiments, the first dust chamber 100 is provided with a micro-mist spray head 140, and the micro-mist spray head 140 is arranged on the top of the first dust chamber 100 and corresponds to the wind shield 120. In specific application, the high-pressure spray sprayed from the micro-mist spray head 140 can further capture dust in the air flow and can wrap large-particle dust separated from the air flow, so that falling and separation of the large-particle dust are promoted, and the primary separation effect of the first dust removal chamber 100 is further improved. Specifically, the micro-mist nozzle 140 may employ a high-pressure micro-mist nozzle 140 of the related art.

In some preferred embodiments, the wind deflector 120 is provided with a plurality of columns in the horizontal direction, the number of the micro-mist spray heads 140 is the same as that of the columns of the wind deflector 120, and one micro-mist spray head 140 corresponds to each column of the wind deflector 120 in the vertical direction. This technical scheme all is equipped with corresponding little fog shower nozzle 140 through every deep bead 120, can guarantee that the air current through every deep bead 120 all receives comprehensive purification. Specifically, in the present embodiment, three rows of wind shields 120 are provided, and correspondingly three fine spray nozzles 140 are provided.

In some preferred embodiments, the sedimentation tank 300 is located below the dust collection tank 240, and a liquid inlet pipe 310 and a liquid outlet pipe 320 are communicated therebetween, a first valve body (not shown) for controlling a liquid flow rate is disposed on the liquid inlet pipe 310, one end of the liquid inlet pipe 310 is communicated with a lower portion of the dust collection tank 240, and the other end thereof is communicated with an upper middle portion of the sedimentation tank 300, a second valve body and a first water supply pump (not shown) for controlling a liquid flow rate are disposed on the liquid outlet pipe 320, one end of the liquid outlet pipe 320 is communicated with an upper middle portion of the dust collection tank 240, and the other end thereof is communicated with an upper middle portion of the sedimentation tank 300. In specific application, through the height difference between the dust collection tank 240 and the sedimentation tank 300, the liquid in the dust collection tank 240 flows into the sedimentation tank 300 by using the pressure of the liquid in the dust collection tank 240 as power; after the liquid in the dust catching tank 240 enters the sedimentation tank 300 and is precipitated for a period of time, the dust can sink below the sedimentation tank 300, and the purified liquid at the upper layer is input into the dust catching tank 240 through the first water supply pump to work again; specifically, the circulation flow of the liquid between the dust collecting tank 240 and the settling tank 300 can be maintained during the dust removing operation, and the flow rate of the liquid can be controlled according to the settling time and effect, so that the down time for replacing the liquid can be saved, and the replacement can be performed by periodically supplementing the purified liquid. Specifically, the specific position of the liquid outlet pipe 320 at the middle upper part of the sedimentation tank 300 can be determined according to the variation range of the liquid level during specific work, so that the first water supply pump can successfully pump a corresponding amount of purified liquid during each work, and a corresponding sensor can be arranged to sense the liquid level in the sedimentation tank 300, thereby avoiding the first water supply pump from idling. Specifically, the first valve body and the second valve body may be solenoid valves.

In some preferred embodiments, the sedimentation tank 300 includes a first tank body 330 and a second tank body 340 which are sequentially communicated with each other, a second water supply pump is disposed between the first tank body 330 and the second tank body 340, the first tank body 330 is used for settling the liquid to be purified which is input from the dust-catching tank 240, and the second tank body 340 is used for storing the purified liquid which is settled and purified by the first tank body 330. In the concrete application, when the liquid in the first tank body 330 reaches the purification and separation effect, the liquid can be input into the second tank body 340 for temporary storage, when the liquid in the dust collection tank 240 is input into the first tank body 330, the purified liquid is input into the dust collection tank 240, so that the whole tank liquid of the dust collection tank 240 can be conveniently replaced, and when the circulating flow of the liquid between the dust collection tank 240 and the sedimentation tank 300 is kept in the dust collection work, the small-scale movement of the surrounding liquid caused by the liquid newly flowing into the sedimentation tank 300 can be avoided, and the purification effect of the liquid circularly flowing into the dust collection tank 240 is influenced. Specifically, in the present embodiment, the liquid inlet pipe 310 is connected to the first tank 330, and the liquid outlet pipe 320 is connected to the second tank 340.

In some preferred embodiments, a concentration detector (not shown) is disposed in the sedimentation tank 300, and the concentration detector is used for detecting the concentration of the liquid in the sedimentation tank 300. Through the technical scheme, the concentration of the purified liquid in the sedimentation tank 300 can be known, and the purification effect of the liquid can be judged, so that whether the purified liquid reaches the standard of reutilization or not is judged, or whether the purified liquid needs to be replaced by new liquid is judged, for example, after the maximum time required by sedimentation is passed, the concentration of the liquid still cannot reach the standard of reutilization, and then the liquid needs to be replaced by new liquid can be judged. Specifically, in the present embodiment, the concentration detector is disposed at the middle upper portion of the sedimentation tank 300 or the first tank body 330. Specifically, the concentration detector may employ existing technical means such as a liquid concentration sensor, a liquid concentration meter, and the like.

Specifically, a water baffle 260 is further disposed above the second dust chamber 200, so that the water is blown to the water baffle 260 to remove water droplets in the airflow when the airflow is discharged upward. In a preferred embodiment, the water baffles 260 are provided in a plurality and in a staggered array.

Specifically, a water outlet is arranged in the dust collection tank 240 and/or the sedimentation tank 300, and the water outlet drives a piston to open and close through an electric push rod, so that water can be drained conveniently and the tank can be cleaned conveniently. An overflow pipe 270 is also arranged in the dust catching pool 240, and the water level in the pool is controlled through the overflow pipe 270 so as to discharge the redundant water in the dust catching pool 240 and avoid the influence on the normal work of the equipment caused by the overflow of the water; a water level sensor can be further arranged in the dust collection tank 240, and is connected with the first valve body and the second valve body, and the liquid level in the dust collection tank 240 is controlled by the controller in a unified manner, so that the liquid level is kept stable.

The utility model provides a dust collection device, detach the big granule dust in the gas earlier through deep bead 120, reduce the work load of catching liquid in the dirt pond 240, it deposits the purification to the liquid that contains the dust in the dirt pond 240 through sedimentation tank 300, make liquid can cyclic utilization, the stirring through agitator 250 avoids the dust to deposit in catching dirt pond 240, but the sedimentation tank 300 that gets into along with the rivers deposits, ensure the cyclic utilization effect of liquid, thereby reduce the change number of times of liquid, do benefit to the saving water for dust removal, reduce the dust removal cost.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.

Claims (7)

1. A dust collection device, comprising:

the first dust removal chamber (100) is provided with a gas inlet (110), a wind shield (120) and a dust collection hopper (130), the gas inlet (110) is formed in the side wall of the first dust removal chamber (100), the wind shield (120) is arranged opposite to the gas inlet (110), and the dust collection hopper (130) is arranged below the wind shield (120), so that gas is blown to the wind shield (120) when entering the first dust removal chamber (100) from the gas inlet (110), and large-particle dust in the gas is blocked by the wind shield (120) and falls into the dust collection hopper (130);

a second dust chamber (200), wherein the second dust chamber (200) is provided with a gas outlet (210), a header (220), an impact pipe (230) and a dust catching pool (240), the gas outlet (210) is arranged at the upper part of the second dust chamber (200), the header (220) is arranged at the middle part of the second dust chamber (200) and communicated with the first dust chamber (100), the dust catching pool (240) is arranged below the header (220) and filled with liquid, the impact pipe (230) is connected with the header (220), the outlet is opposite to the dust catching pool (240) so that the gas is sprayed out through the impact pipe (230) to impact the liquid level in the dust catching pool (240), and the dust catching pool (240) is provided with a stirrer (250);

the sedimentation tank (300) is communicated with the dust catching tank (240) and forms a liquid circulation loop, so that liquid in the dust catching tank (240) enters the sedimentation tank (300) for sedimentation and then flows back to the dust catching tank (240).

2. The dust collecting device according to claim 1, wherein the wind deflector (120) is provided with a plurality of wind deflectors (120), and the plurality of wind deflectors (120) are distributed in a staggered array.

3. The dust collecting device according to claim 2, wherein the wind deflector (120) is disposed obliquely, and an upper portion of the wind deflector (120) is inclined with respect to a lower portion thereof toward a direction in which the gas enters the first dust chamber (100).

4. The dust collecting device of claim 1, wherein the first dust chamber (100) is provided with a micro-mist nozzle (140), and the micro-mist nozzle (140) is arranged on the top of the first dust chamber (100) and corresponds to the wind shield (120).

5. The dust collecting device according to claim 4, wherein the wind deflector (120) is provided with a plurality of columns in the horizontal direction, the number of the micro-mist spray heads (140) is the same as that of the wind deflector (120), and one micro-mist spray head (140) corresponds to each column of the wind deflector (120) in the vertical direction.

6. The dust collecting device according to claim 1, wherein the sedimentation tank (300) is located below the dust collecting tank (240), and a liquid inlet pipe (310) and a liquid outlet pipe (320) are communicated therebetween, a first valve body for controlling liquid flow is provided on the liquid inlet pipe (310), one end of the liquid inlet pipe (310) is communicated with the lower portion of the dust collecting tank (240), the other end of the liquid inlet pipe is communicated with the middle upper portion of the sedimentation tank (300), a second valve body for controlling liquid flow and a first water supply pump are provided on the liquid outlet pipe (320), one end of the liquid outlet pipe (320) is communicated with the middle upper portion of the dust collecting tank (240), and the other end of the liquid outlet pipe is communicated with the middle upper portion of the sedimentation tank (300).

7. The dust collecting device according to claim 1, wherein a concentration detector is arranged in the sedimentation tank (300) and is used for detecting the concentration of the liquid in the sedimentation tank (300).

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