CN220386142U - Multistage filtration ash discharge mouth dust collector - Google Patents

Abstract

The utility model discloses a multistage filtering dust-discharging mouth dust-removing device, which comprises a communicating pipeline, an atomizing nozzle and a cyclone separation device, wherein one end of the communicating pipeline is communicated with a diffusion tank, the other end of the communicating pipeline is communicated with an air inlet end of the cyclone separation device, dry cement ash enters the communicating pipeline through the diffusion tank, the front end of the communicating pipeline along the flowing direction of the dry cement ash is provided with the atomizing nozzle, and the atomizing nozzle sprays liquid into the communicating pipeline.

Description

Multistage filtration ash discharge mouth dust collector

Technical Field

The utility model relates to the field of dust removal of an ash discharge port. More particularly, the present utility model relates to a multi-stage filtration dust removal device.

Background

With the increasing prominence of environmental pollution, green environmental protection has become a necessary operation requirement for well site environment. The slurry mixing system of the well cementing equipment comprises a high-energy circulation mixer and a diffusion tank. When the device works, dry cement ash enters the high-energy circulation mixer through the ash discharging valve, clear water is ejected from the nozzle of the ejector and mixed with cement slurry together with the dry cement ash, and cement slurry enters the diffusion tank so as to further achieve full and uniform mixing, and the energy of the cement slurry is provided by the ejector pump and the circulation pump. In the whole slurry mixing process, air brought by the dry cement ash, part of cement slurry brought by the discharged gas and pollution particulate matters generated by residual dry cement ash which cannot be mixed in the high-energy circulation mixer are discharged from the diffusion tank.

The existing situation is that a rubber elbow is arranged at the ash discharge port of the diffusion tank, so that the discharge of residual dry cement ash discharged from the diffusion tank is changed from upward discharge to the outside of the equipment, and only the situation that the residual dry cement ash is diffused on an operation table of the well cementation equipment to influence an operator to operate the well cementation equipment is avoided. However, such direct discharge of the residual dry cement ash not only causes environmental pollution, but also causes damage to the physical health of operators.

Disclosure of Invention

To achieve these objects and other advantages and in accordance with the purpose of the utility model, as embodied and broadly described herein, a multi-stage filtering dust removing apparatus includes a communication pipe having one end connected to a diffusion tank and the other end connected to an air inlet end of a cyclone separator, dry cement dust entering the communication pipe through the diffusion tank, and an atomizing nozzle installed at a front end of the communication pipe in a flow direction of the dry cement dust, the atomizing nozzle injecting a liquid into the communication pipe.

Preferably, the multi-stage filtering dust-discharging port dust-removing device further comprises a filtering device, and the filtering device is arranged at the exhaust end of the cyclone separation device.

Preferably, in the multi-stage filtering dust removing device, the communicating pipe sequentially comprises a dust removing pipe, an elbow, a reducing pipe, a middle pipe, a fastening device and an air duct connecting pipe along the flowing direction of dry cement dust, wherein the dust removing pipe is connected with one end of the reducing pipe through the elbow, the other end of the reducing pipe is connected with the middle pipe, the middle pipe is connected with one end of the air duct connecting pipe through the fastening device, and the other end of the air duct connecting pipe is connected with the air inlet end of the cyclone separation device.

Preferably, in the multi-stage filtering dust removing device, the air duct connecting pipe is a deformable hose.

Preferably, in the multi-stage filtering dust removing device, the inner diameter of the dust discharging pipe is larger than that of the air duct connecting pipe.

Preferably, in the multi-stage filtering dust removing device, the diffusion tank is communicated with the slurry mixing tank.

Preferably, in the multi-stage filtering ash discharge port dust removing device, the ash discharge pipe, the elbow, the reducing pipe, the middle pipe, the fastening device and the air duct connecting pipe are all fixed above the slurry mixing tank through a bracket.

The utility model at least comprises the following beneficial effects: the utility model provides a dust removal device using multistage filtration, which can effectively remove three pollutants of soluble small particulate matters, insoluble and soluble large particulate matters and insoluble small particulate matters in polluted gas discharged during site operation, reduce the harm of the polluted gas to the body of staff, improve the site operation environment and avoid environmental pollution.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of a multi-stage filtration dust removal device according to the present utility model.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1, a preferred embodiment of the present utility model provides a multi-stage filtration ash discharge port dust removal device, which comprises a communication pipe, an atomizing nozzle 2 and a cyclone separation device 8, wherein one end of the communication pipe is communicated with a diffusion tank 11, the other end of the communication pipe is communicated with an air inlet end of the cyclone separation device 8, dry cement ash enters the communication pipe through the diffusion tank, the atomizing nozzle 2 is installed at the front end of the communication pipe along the flow direction of the dry cement ash, and the atomizing nozzle 2 sprays liquid into the communication pipe. The diffusion tank 11 is communicated with the slurry mixing tank 10.

In the technical scheme, dry cement ash enters a communication pipeline through a diffusion tank 11, an atomizing nozzle 2 is arranged in the communication pipeline, fluid is sprayed through the atomizing nozzle 2 to form a water mist filtering surface with one or more sections, so that the soluble small particulate matters in the communication pipeline are subjected to primary filtration, after the rest insoluble small particulate matters enter a cyclone separation device 8, the internal rotating pipe enables air to form a rotational ascending flow direction through a specific track on the pipe wall to generate centrifugal force, and under the action of the centrifugal force, the insoluble and soluble large particulate matters are separated from an air flow channel and fall along with the gravity, so that secondary filtration is realized;

in one preferable technical scheme, the ash discharge port dust removing device further comprises a filtering device 9, the filtering device 9 is arranged at the exhaust end of the cyclone separation device 8, and the filtering device 9 is a mesh type filtering device, and a filter screen is arranged in the filtering device. The polluted gas treated by the secondary filtering method is discharged to the external environment after passing through the mesh type filtering device, wherein insoluble small particulate matters are blocked by the cross-section of the mesh type filtering device and fall along with gravity, so that the tertiary filtering is realized.

One of the preferred technical schemes provides a concrete structure of communicating pipe, communicating pipe includes ash discharging pipe 1, elbow 3, reducing pipe 4 in proper order along dry cement ash flow direction, middle pipeline 5, fastener 6 and wind channel connecting pipe 7, ash discharging pipe 1 passes through elbow 3 connects reducing pipe 4 one end, reducing pipe 4 other end is connected middle pipeline 5, middle pipeline 5 passes through fastener 6 connects wind channel connecting pipe 7 one end, wind channel connecting pipe 7 other end is connected the inlet end of cyclone separation device 8. The insoluble and soluble large particulate matters sequentially pass through the elbow 3, the reducing pipeline 4, the middle pipeline 5, the fastening device 6 and the air duct flexible connection 7 to enter the cyclone separation device 8.

In a preferred embodiment, the air duct connecting pipe 7 is a flexible pipe, and the shape of the air duct connecting pipe can be adjusted according to practical situations, so that the air duct connecting pipe is convenient to connect and install.

In one preferable technical scheme, the inner diameter of the ash discharge pipe 1 is larger than that of the air duct connecting pipe 7, so that the air flow rate can be increased and the filtering effect can be enhanced under the condition of the same air quantity.

In one preferable technical scheme, the ash discharging pipe 1, the elbow 3, the reducing pipeline 4, the middle pipeline 5, the fastening device 6 and the air duct connecting pipe 7 are all fixed above the slurry mixing tank through brackets, so that the components can be stably installed.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (7)

1. The utility model provides a multistage filtration ash discharge mouth dust collector, its characterized in that includes communicating pipe, atomizing nozzle and cyclone separation device, communicating pipe one end intercommunication diffusion tank, the other end intercommunication cyclone separation device's inlet end, dry cement ash is via the diffusion tank gets into communicating pipe is intraductal, communicating pipe installs atomizing nozzle along dry cement ash flow direction's front end, atomizing nozzle to communicating pipe is intraductal to spray liquid.

2. The multi-stage filtration dust port dust removal device of claim 1, further comprising a filtration apparatus mounted at an exhaust end of the cyclonic separating apparatus.

3. The multi-stage filtration ash discharge port dust removal device according to claim 1, wherein the communicating pipe sequentially comprises an ash discharge pipe, an elbow, a reducer pipe, a middle pipe, a fastening device and an air duct connecting pipe along the dry cement ash flow direction, the ash discharge pipe is connected with one end of the reducer pipe through the elbow, the other end of the reducer pipe is connected with the middle pipe, the middle pipe is connected with one end of the air duct connecting pipe through the fastening device, and the other end of the air duct connecting pipe is connected with the air inlet end of the cyclone separation device.

4. A multi-stage filtration dust removal device according to claim 3, wherein the duct connecting tube is a flexible hose.

5. A multi-stage filtration dust removal device according to claim 3, wherein the inner diameter of the dust discharge pipe is larger than the air duct connection pipe.

6. A multi-stage filtration dust removal device according to claim 3, wherein the diffusion tank communicates with the slurry tank.

7. The multi-stage filtration dust removal device according to claim 6, wherein the dust removal pipe, elbow, reducer pipe, intermediate pipe, fastening device and duct connection pipe are all fixed above the slurry tank by brackets.