CN216418691U - Dust removing device - Google Patents

Abstract

The application discloses a dust removal device, which belongs to the technical field of dust removal, and comprises a mixing container, a dust exhaust pipeline and a filtering device, wherein the mixing container is provided with a first opening for clear water to enter and a second opening for cement ash to enter, the mixing container is also provided with a communicating port, and one end of the dust exhaust pipeline is connected with the communicating port; the filter device comprises a shell and a filter body, the filter body is arranged in the shell, the shell is provided with a dust inlet and a third opening, the dust inlet is connected with the other end of the dust exhaust pipeline, the filter body is provided with a filter cavity and a discharge port communicated with the filter cavity, the discharge port is communicated with the third opening so as to enable the discharge port to be communicated with the outside atmosphere, and a fan assembly is arranged at the discharge port or the third opening. Can filter the cement dust through above-mentioned technical scheme, avoid the dust to arrange to the atmosphere, can not cause human disease and influence machine performance, can not cause environmental pollution yet, be favorable to the environmental protection.

Description

Dust removing device

Technical Field

This application belongs to dust removal technical field, concretely relates to dust collector.

Background

In the well cementation operation, clear water and cement ash are required to enter a slurry mixing tank through a mixer for fully mixing, and after the density requirement is met, the mixed cement slurry is pressurized through a plunger pump and is pumped to the oil field for operation.

In the process of mixing clean water and cement ash, since attention needs to be paid to the state of cement slurry in the slurry mixing tank, the slurry mixing tank is generally provided with an opening for observation, that is, the inside of the slurry mixing tank is communicated with the outside atmosphere. Thus, the cement dust in the slurry mixing tank is directly discharged to the atmosphere. On the one hand, the long-term inhalation of cement dust causes diseases such as lung diseases, and the cement dust produces alkaline substances such as calcium hydroxide when meeting water or sweat, so that the cement dust stimulates the skin to cause dermatitis, and moreover, the cement dust enters eyes to cause conjunctivitis, keratitis and the like. On the other hand, cement dust is suspended in the air and sucked into the machine body by key components such as a motor, a radiator and the like to be adhered, so that the performance and the service life of equipment are influenced, and the maintenance is difficult. Moreover, the cement dust easily causes environmental pollution, which is not beneficial to environmental protection.

SUMMERY OF THE UTILITY MODEL

The purpose of the embodiment of the application is to provide a dust collector, can solve among the correlation technique cement dust and arrange to the atmosphere, and then cause human disease and influence machine performance, cause environmental pollution's problem.

The embodiment of the application provides a dust collector, including mixing vessel, dust exhaust pipeline and filter equipment, wherein:

the mixing container is provided with a first opening for clear water to enter and a second opening for cement ash to enter, and is also provided with a communicating port, and one end of the dust exhaust pipeline is connected with the communicating port;

the filter device comprises a shell and a filter body, wherein the filter body is arranged in the shell, a dust inlet and a third opening are formed in the shell, the dust inlet is connected with the other end of the dust exhaust pipeline, the filter body is provided with a filter cavity and a discharge port communicated with the filter cavity, the discharge port is communicated with the third opening, so that the discharge port is communicated with the external atmosphere, and the discharge port or the third opening is provided with a fan assembly for generating negative pressure.

In this application embodiment, the clear water that gets into by first opening and the cement ash that gets into by the second opening mix in mixing vessel, and the cement dust that the in-process produced gets into filter equipment through intercommunication mouth and dust exhaust pipeline, specifically speaking, the cement dust is through entering the dust mouth in getting into the casing, after the filtration of filter body, the unable filter body that passes through of dust in the cement dust, and the dust falls in the casing, and clean air in the cement dust passes through the filter body to discharge outside the casing by the third opening. In the process, the fan assembly generates negative pressure, so that suction can be generated on clean air in the filter cavity, the flowing speed of the clean air in the filter cavity is increased, and the clean air is discharged to the external atmosphere as soon as possible; simultaneously, inhale the cement dust in the casing from mixing vessel department and dust exhaust pipeline department for the flow speed of cement dust makes the cement dust be close to the filter body, improves filtration efficiency, accelerates to remove dust.

So set up, the cement dust can not directly discharge to the atmosphere through the third opening, avoids cement dust and human contact to cause diseases such as lung disease, dermatitis or eye disease, also avoids the cement dust to get into the machine equipment simultaneously and influence the performance and the life of machine, can not cause environmental pollution yet, accords with emission standard, is favorable to the environmental protection.

Drawings

FIG. 1 is a schematic structural diagram of a dust removing device disclosed in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a filtering apparatus disclosed in an embodiment of the present application.

Description of reference numerals:

100-a mixer; 110 — a first opening; 120-a second opening;

200-slurry mixing tank; 210-a diffusion box;

300-a dust exhaust pipe; 310-a primary pipeline; 320-branch pipeline;

400-a cover body;

500-a housing; 510-a second cylindrical portion; 511-dust inlet; 512-third opening; 520-inverted cone-shaped portion;

600-a filter body; 610-a first cylindrical portion; 620-a sealing part;

700-control valve;

800-ash removal device; 810-trachea; 820-a nozzle; 830-a pulse valve;

910-a fan; 920 — rotating the driver.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one.

The dust removing device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1-2, the present embodiment discloses a dust removing apparatus, which includes a mixing container, a dust discharging pipe 300 and a filtering apparatus. Clear water and cement ash are mixed in the mixing container to form cement paste, and cement dust which is insoluble in water enters the filtering device through the dust exhaust pipeline 300 in the mixing process, and is filtered through the filtering device.

In particular, the mixing container is provided with a first opening 110 and a second opening 120, wherein the first opening 110 is used for fresh water to enter the mixing container and the second opening 120 is used for cement ash to enter the mixing container. The mixing container is usually further provided with a stirring device, and the mixture of the clear water and the cement ash is stirred by the stirring device, so that the clear water and the cement ash are fully mixed.

In this embodiment, the mixing container is further provided with a communication port, one end of the dust exhaust pipeline 300 is connected with the communication port, and the other end of the dust exhaust pipeline 300 is connected with the filtering device. In this way, the cement dust is conveyed from the mixing container to the filter device via the dust exhaust duct 300.

As shown in fig. 2, the filtering apparatus includes a housing 500 and a filtering body 600, the filtering body 600 is disposed inside the housing 500, the housing 500 is opened with a dust inlet 511 and a third opening 512, the dust inlet 511 is connected with the other end of the dust exhaust pipe 300, the filtering body 600 is provided with a filtering chamber and a discharge port communicating with the filtering chamber, and the discharge port is communicated with the third opening 512, so that the discharge port is communicated with the outside atmosphere. Alternatively, the filter body 600 may be a filter cartridge, a filter bag, or other structures having a filtering function. Thus, the cement dust enters the housing 500 through the dust inlet 511, the cement dust in the housing 500 is filtered by the filter body 600, and then the clean air enters the filter chamber, and the clean air is further discharged to the outside atmosphere through the discharge port, while the dust remains in the housing 500.

In this embodiment, a fan assembly is disposed at the discharge port or the third opening 512, and the fan assembly is configured to generate a negative pressure at the discharge port or the third opening 512, so as to generate a suction force on the air in the filter cavity, and increase a flow speed of the clean air in the filter cavity, so that the clean air is discharged to the outside atmosphere as soon as possible; meanwhile, the fan assembly generates suction to the cement dust inside the casing 500, and can also generate suction to the cement dust at the mixing container and the cement dust in the dust exhaust pipeline 300, so that the flowing speed of the cement dust is increased, the cement dust is close to the filter body 600, and the filtering efficiency is improved.

By the arrangement, cement dust is not directly discharged to the atmosphere through the third opening 512 by the dust removal device, so that diseases such as lung diseases, dermatitis or eye diseases caused by contact of the cement dust and a human body are avoided, and the influence on the performance and the service life of a machine due to the fact that the cement dust enters the machine equipment is also avoided; does not cause environmental pollution, meets the emission standard and is beneficial to environmental protection.

Alternatively, as shown in fig. 2, the filter body 600 includes a first cylindrical portion 610 and a blocking portion 620, the first cylindrical portion 610 and the blocking portion 620 may be of an integral structure, the blocking portion 620 blocks a first port of the first cylindrical portion 610, the discharge port is a second port of the first cylindrical portion 610, and a gap is provided between an outer wall surface of the first cylindrical portion 610 and an inner wall surface of the housing 500. Specifically, the filter 600 may be disposed at an intermediate position inside the casing 500, and the outer wall surface of the first cylindrical portion 610 does not contact any position of the inner wall surface of the casing 500, that is, a gap exists between any position of the outer wall surface of the first cylindrical portion 610 and the inner wall surface of the casing 500.

In this arrangement, since the first cylindrical portion 610 is not in contact with the inner wall surface of the housing 500 at all, there is no influence of the housing 500 on a partial region of the first cylindrical portion 610, and any position of the first cylindrical portion 610 can be in contact with the cement dust located in the gap, so that any position of the first cylindrical portion 610 can filter the cement dust, and the effective filter area of the filter body 600 is increased to the maximum.

In this embodiment, the filter body 600 is vertically disposed, the first port is a lower port of the filter body 600, and the second port is an upper port of the filter body 600. Thus, no matter the first cylindrical part 610 filters the cement dust, or the blocking part 620 filters the cement dust, all the clean air entering the filter chamber flows to a high place due to the light weight of the clean air, and the clean air can just flow out of the filter chamber through the upper port of the filter body 600.

In a further embodiment, the second port of the first cylindrical portion 610 is located higher than the first port of the first cylindrical portion 610, the dust inlet 511 is disposed at a position of the housing 500 near the first port, and the third opening 512 is located higher than the second port. That is, the dust inlet 511 is close to the blocking portion 620, and the third opening 512 is located higher than the dust outlet, so that the third opening 512 is also located higher than the dust inlet 511.

After entering the housing 500 through the dust inlet 511, the cement dust rises before contacting the filter 600. Since the dust inlet 511 is close to the blocking portion 620, even if cement dust rises and flows, the dust inlet can be in contact with the first cylindrical portion 610, and most of the area of the first cylindrical portion 610 can perform a filtering function, thereby preventing a part of the filter body 600 from failing to perform the filtering function due to the rise of the cement dust.

In an alternative embodiment, as shown in fig. 2, the housing 500 includes a second cylindrical portion 510 and an inverted cone portion 520, and the second cylindrical portion 510 and the inverted cone portion 520 may be an integrally molded structure. The inverted cone-shaped portion 520 is disposed at an end of the second cylindrical portion 510, the filter body 600 is disposed inside the second cylindrical portion 510, an annular space is formed between the first cylindrical portion 610 and the second cylindrical portion 510 of the filter body 600, the filter body 600 is located at a position higher than the inverted cone-shaped portion 520, and the dust inlet 511 and the third opening 512 are both opened at a side wall of the second cylindrical portion 510. In the present embodiment, the second cylindrical portion 510 is also vertically disposed, the reverse tapered portion 520 is disposed at the lower end of the second cylindrical portion 510, and the third opening 512 is disposed at the upper end of the second cylindrical portion 510.

Also, the reverse tapered portion 520 includes a third port and a fourth port, the third port is larger than the fourth port, the third port communicates with the second cylindrical portion 510, and the fourth port is provided with the control valve 700. Specifically, the fourth port can be opened or closed by opening or closing the control valve 700.

So set up, behind the filtering action of filter 600, the cement ash that does not get into in the filter chamber among the cement dust drops in back taper type portion 520 under the action of gravity, and the cement ash is collected in back taper type portion 520. In addition, the control valve 700 can clean cement ash deposited in the inverted cone-shaped part 520, and the problem that the cement ash is accumulated for a long time to cause overlarge accumulation amount is avoided.

In an alternative embodiment, the filter body 600 may be a filter bag, and the material of the filter body 600 may be a polyester fiber non-woven fabric. Of course, other materials having a filtering function may be used for the filter body 600.

In a further technical scheme, the dust removing device further comprises a dust removing device 800, wherein the dust removing device 800 is arranged on the shell 500 and used for blowing air flow to the inside of the filter cavity, and the direction of the blowing air flow is opposite to the flow direction of clean air in the filter cavity. Specifically, as shown in fig. 2, the ash removal device 800 includes an air pipe 810, a nozzle 820 and a pulse valve 830, wherein the air pipe 810 is used for communicating with an external air source, the air pipe 810 and the pulse valve 830 can be disposed outside the housing 500, the air pipe 810 is connected with the nozzle 820, the pulse valve 830 is disposed on an air path of the air pipe 810, and the pulse valve 830 can instantly turn on and off the air source to generate pulses; the nozzle 820 extends through the housing 500 and into the filter cavity so that the nozzle 820 can blow a stream of air into the filter cavity. Alternatively, the air source may be a high pressure air tank or an air compressor.

In this embodiment, a flow chamber is further disposed in the housing 500, the flow chamber is located at the upper end of the housing 500, the dust exhaust port and the third opening 512 are both communicated with the flow chamber, and the nozzle 820 penetrates through the flow chamber from the outside of the housing 500 and extends into the filter chamber from the dust exhaust port.

Thus, high-pressure air supplied from the air source can be supplied to the nozzle 820 through the air pipe 810, whether the nozzle 820 sprays the air flow is controlled through the pulse valve 830, the air flow can be blown to the side wall of the filter body 600 due to the fact that the direction of the air flow is opposite to the direction of the flow of the clean air, cement ash attached to the outer surface of the filter body 600 is blown off, the blown cement ash falls into the inverted cone-shaped portion 520, and the problem that the cement ash is attached to the outer surface of the filter body 600 for a long time to affect the filtering effect of the filter body 600 is avoided.

In the present embodiment, as shown in fig. 1, the mixing container includes a mixer 100 and a slurry mixing tank 200, wherein the mixer 100 may be disposed on the top of the slurry mixing tank 200, or may be disposed on the side wall of the slurry mixing tank 200, clear water and cement ash can be mixed together by the mixer 100, and the mixer 100 is opened with a first opening 110 and a second opening 120. The outlet end of the mixer 100 is communicated with the slurry mixing tank 200, and the communication port is arranged at the top of the slurry mixing tank 200. Optionally, a stirring device is disposed in the slurry mixing tank 200 for stirring the mixture of the clean water and the cement ash to fully mix the clean water and the cement ash.

Specifically, the first opening 110 may be communicated with a water supply device, a centrifugal pump is disposed between the first opening 110 and the water supply device, and clean water is pumped to the first opening 110 by the centrifugal pump; the second opening 120 is communicated with the ash tank through a pipeline, the ash tank is a container for containing cement ash, the ash tank is connected with an air compressor, the air compressor sends compressed air into the interior of the ash tank, the cement ash in the ash tank tends to be fluidized under the action of the compressed air and a fluidized bed, and when the pressure in the ash tank reaches a rated value, the fluidized cement ash reaches the second opening 120 through the pipeline under the action of potential energy of air pressure, so that the fluidized cement ash is mixed with clean water in the mixer 100.

So set up, mix clear water and cement ash through blender 100 earlier, make the mixture get into mix the thick liquid jar 200 in again, give clear water and cement ash sufficient mixing time, avoid cement ash and clear water to get into mix the thick liquid jar 200 after, not mix in time yet, just appear partial cement dust and pass through the direct exhaust condition of intercommunication mouth.

In a further technical scheme, as shown in fig. 1, a cover body 400 is connected to an end of the dust exhaust pipe 300, an internal cavity of the cover body 400 is communicated with the dust exhaust pipe 300, the cover body 400 covers an outer wall of the slurry mixing tank 200, and the position of the cover body 400 corresponds to the position of the communication port. The opening of the cover 400 is the same size as the opening of the communication port. Specifically, since the communication port is disposed at the top of the slurry mixing tank 200, the cover 400 can be directly fastened to the slurry mixing tank 200, that is, the cover 400 directly contacts with the outer wall of the slurry mixing tank 200, and of course, the cover 400 can also be fixedly connected to the outer wall of the slurry mixing tank 200 in other manners.

With such an arrangement, the cover 400 is convenient for collecting cement dust in the slurry mixing tank 200, so that the cement dust can enter the dust exhaust pipe 300 to the maximum extent.

In this embodiment, the communication port includes first communication port and second communication port, and first communication port department is equipped with diffusion box 210, and dust exhaust pipe 300 includes main pipeline 310 and two branch pipelines 320, and the one end intercommunication dust inlet 511 of main pipeline 310, the other end of main pipeline 310 all communicate with the one end of two branch pipelines 320, and the other end of two branch pipelines 320 all is equipped with cover body 400, and two cover bodies 400 cover respectively and establish exit end and the second communication port department at diffusion box 210. Specifically, the diffusion box 210 partially extends into the slurry mixing tank 200, a smoke exhaust pipe is arranged in the diffusion box 210, and the cover 400 corresponding to the diffusion box 210 is connected with the smoke exhaust pipe.

So set up, the cover body 400 that the diffusion case 210 corresponds can directly collect the cement ash of tub exhaust of discharging fume, and the cover body 400 that the second intercommunication mouth corresponds can collect the cement dust that floats in muddy thick liquid jar 200.

In this embodiment, as shown in fig. 1, the fan assembly includes a fan 910 and a rotary driving member 920, the fan 910 is disposed at the third opening 512, and the rotary driving member 920 is connected to the fan 910 so as to drive the fan 910 to rotate. Alternatively, the casing of the blower 910 may be fixedly disposed on the outer wall of the housing 500 by welding, bonding, or the like, so as to dispose the blower 910 at the third opening 512. Specifically, the rotary driving member 920 may be an electric motor, a hydraulic motor, or a pneumatic motor.

In this way, the rotary driving member 920 provides the rotary power of the fan 910, and the rotary driving member 920 drives the fan 910 to rotate, so that the fan 910 generates a negative pressure at the third opening 512 to generate a suction force on the cement dust in the housing 500 and the clean air in the filter chamber.

In an alternative embodiment, one end of the dust exhaust duct 300 is connected to the mixing container through a flexible member, and similarly, the other end of the dust exhaust duct 300 is connected to the housing 500 through a flexible member. Optionally, the branch pipe 320 is connected with the casing 400 through a flexible member, so as to indirectly achieve the connection between the dust exhaust duct 300 and the mixing container. The flexible member may be a rubber tube, and of course, the flexible member may also be other structural members.

Specifically, the cover body 400 is provided with an inlet joint, and a rubber tube is simultaneously sleeved at the inlet joint and the end part of the branch pipe 320, so that the branch pipe 320 is connected with the cover body 400; similarly, the end of the main pipe 310 is connected to the dust inlet 511 via a rubber tube, and the dust inlet 511 is provided with a joint part, and the rubber tube is simultaneously sleeved on the joint part of the dust inlet 511 and the end of the branch pipe 320, so as to realize the connection between the main pipe 310 and the housing 500.

By the arrangement, the flexible connection mode can play a role in shock absorption, and damage to the interface between the main pipeline 310 and the dust inlet 511 and the interface between the branch pipeline 320 and the cover body 400 caused by vibration in the working process of the components such as the fan 910 and the like is avoided; moreover, the flexible connection mode is convenient to maintain.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (11)

1. A dust removing device, comprising a mixing container, a dust exhaust duct (300) and a filtering device, wherein:

the mixing container is provided with a first opening (110) for clear water to enter and a second opening (120) for cement ash to enter, and is also provided with a communicating opening, and one end of the dust exhaust pipeline (300) is connected with the communicating opening;

filter equipment includes casing (500) and filter body (600), filter body (600) are located in casing (500), dust inlet (511) and third opening (512) have been seted up in casing (500), dust inlet (511) with the other end of dust exhaust pipeline (300) is connected, filter body (600) are equipped with filter chamber and intercommunication filter chamber's discharge port, just the discharge port with third opening (512) intercommunication, so that discharge port intercommunication outside atmosphere, the discharge port perhaps third opening (512) department is equipped with the fan subassembly that is used for producing the negative pressure.

2. The dust removing device according to claim 1, wherein the filter body (600) comprises a first cylindrical portion (610) and a blocking portion (620), the blocking portion (620) blocks a first port of the first cylindrical portion (610), the discharge port is a second port of the first cylindrical portion (610), and a gap is provided between an outer wall surface of the first cylindrical portion (610) and an inner wall surface of the housing (500).

3. The dust removing apparatus according to claim 2, wherein a second port of the first cylindrical portion (610) is located higher than a first port of the first cylindrical portion (610), the dust inlet (511) is provided at a position of the housing (500) near the first port, and the third opening (512) is located higher than the second port.

4. The dust removing device according to claim 1, wherein the housing (500) comprises a second cylindrical portion (510) and an inverted conical portion (520), the inverted conical portion (520) is provided at an end of the second cylindrical portion (510), the filter body (600) is provided inside the second cylindrical portion (510), the filter body (600) is higher than the inverted conical portion (520), and the dust inlet (511) and the third opening (512) are both provided in the second cylindrical portion (510); the reverse taper portion (520) comprises a third port and a fourth port, the third port is larger than the fourth port, the third port is communicated with the second cylindrical portion (510), and a control valve (700) is arranged at the fourth port.

5. A dusting device according to claim 1, characterized in that the filtering body (600) is a filter bag.

6. The dust removing device according to claim 1, further comprising a dust removing device (800), wherein the dust removing device (800) comprises an air pipe (810), a nozzle (820) and a pulse valve (830), the air pipe (810) is used for being communicated with an external air source, the air pipe (810) is connected with the nozzle (820), the pulse valve (830) is arranged on the air pipe (810), and the nozzle (820) penetrates through the housing (500) and extends into the filter cavity.

7. The dust removing device of claim 1, wherein the mixing container comprises a mixer (100) and a slurry mixing tank (200), the mixer (100) is arranged in the slurry mixing tank (200), an outlet end of the mixer (100) is communicated with the slurry mixing tank (200), the first opening (110) and the second opening (120) are both arranged in the mixer (100), and the communication opening is arranged at the top of the slurry mixing tank (200).

8. The dust removing device according to claim 7, wherein a cover body (400) is connected to an end of the dust exhaust pipeline (300), an inner space of the cover body (400) is communicated with the dust exhaust pipeline (300), the cover body (400) covers an outer wall of the slurry mixing tank (200), and the position of the cover body (400) corresponds to the position of the communication port.

9. The dust removing device according to claim 8, wherein the communication port comprises a first communication port and a second communication port, the first communication port is provided with a diffusion box (210), the dust exhaust duct (300) comprises a main duct (310) and two branch ducts (320), one end of the main duct (310) is communicated with the dust inlet (511), the other end of the main duct (310) is communicated with both of the two branch ducts (320), the end portions of both of the two branch ducts (320) are provided with the covers (400), and the two covers (400) are respectively covered at the outlet end of the diffusion box (210) and the second communication port.

10. The dust removing device of claim 1, wherein the fan assembly comprises a fan (910) and a rotary driving member (920) for driving the fan (910) to rotate, the fan (910) is disposed at the third opening (512), and the rotary driving member (920) is connected to the fan (910).

11. The dust removing apparatus of claim 1, wherein a flexible member is connected between one end of the dust exhaust pipe (300) and the mixing container and between the other end of the dust exhaust pipe (300) and the housing (500).

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