CN214403515U

CN214403515U - Well cementation cement truck and dust collector thereof

Info

Publication number: CN214403515U
Application number: CN202120176800.4U
Authority: CN
Inventors: 薛亮; 王典; 刘敏; 高飞; 刘渐强; 陈斌
Original assignee: China University of Petroleum Beijing
Current assignee: China University of Petroleum Beijing
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-15
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a well cementation cement car and dust collector thereof, this dust collector includes: the dust removal device comprises a hollow dust removal cavity, a dust removal cavity and a base, wherein the dust removal cavity is provided with a top end and a bottom end which are opposite, a sealing top cover is arranged at the top end, and the bottom end is connected with the base in a sealing mode; a water inlet joint is arranged on the side wall of the dust removing cavity close to the top end, and an outlet pipeline is arranged on the side wall of the dust removing cavity close to the bottom end; an atomizing and spraying mechanism, a corrugated plate and a speed reducing plate are arranged in the dust removing cavity from top to bottom; the atomizing injection mechanism includes: the nozzle seat is provided with a spray head which can generate a preset atomization angle; the corrugated plate is provided with a plurality of first open holes with preset apertures; a plurality of second openings are distributed on the decelerating plate at intervals on the peripheral side deviating from the center. The utility model provides a well cementation cement car and dust collector thereof can effectively reduce the discharge of well cementation cement car dry ash, reaches the green production requirement.

Description

Well cementation cement truck and dust collector thereof

Technical Field

The utility model relates to a grout of well cementation operation mixes technical field, in particular to well cementation cement car and dust collector thereof.

Background

With the continuous advocated green development of the country, the environmental problem is paid high attention. In which, the atmospheric dust pollution has become a serious environmental pollution problem for environmental protection departments. When the well cementation cement truck is used for mixing slurry, the problem of ash emission at the opening of a chimney becomes a large restriction factor of green production. Specifically, during construction operation of the well cementation cement truck, cement and clear water are mixed in a primary mixer to prepare cement slurry with proper density, and the cement slurry is pumped into a well to complete well cementation operation. In the slurry mixing process, clear water enters the primary mixer and rotates at a high speed along the inner wall of the mixer, and because cement dry ash particles are small and the water flow speed is high, some dry ash which cannot be fully mixed with water in the mixer is carried by the gas entering at a high speed and is discharged from a chimney at the top of the slurry mixing tank. As the ash discharge position of the well cementation cement truck has the characteristics of high wind speed, large ash amount peak value and unstable ash amount, a mature dust removal device for the well cementation cement truck does not exist at present.

The dust remover of the existing well cementation cement truck slurry mixing system comprises: the chimney body that is connected with mixing thick liquid system the atomizing sleeve pipe that has the cavity is installed at chimney body top atomizing sheathed tube one side has atomizing injection apparatus through the pipe connection, atomizing sheathed tube top demountable installation have a buffer tube be equipped with at least one buffer portion that is greater than buffer tube cavity diameter on the buffer tube, the top of buffer portion be equipped with the filter screen the top of buffer tube is equipped with dust cover isotructure. When the dust remover is used, dust is sprayed by atomization, buffered by a buffer tube, filtered and blocked in sequence, so that the purpose of dust removal is achieved.

However, there are a number of improvements to this prior art dust collector, including: the atomizing and spraying device adopts a siphon type atomizing and spraying device, needs an external compressed air power source and is complicated in pipeline connection; the atomizing hole evenly sets up on the circumference surface of atomizing sleeve pipe inner wall, and water is followed the circumference wall blowout, and the difficult even atomizing sleeve pipe cavity that fills of droplet leads to the buffer tube unsatisfactory to dry ash speed reduction effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one defect of the above-mentioned of prior art, the embodiment of the utility model provides a technical problem that will solve provides a well cementation cement car and dust collector thereof, and it can effectively reduce well cementation cement car and do grey discharge, reaches green production requirement.

The embodiment of the utility model provides a concrete technical scheme is:

a dust extraction device comprising:

the dust removal device comprises a hollow dust removal cavity, a base and a dust collection cover, wherein the dust removal cavity is provided with a top end and a bottom end which are opposite, the top end is provided with a sealing top cover, and the bottom end is connected with the base in a sealing mode; a water inlet joint is arranged on the side wall of the dust removing cavity close to the top end, and an outlet pipeline is arranged on the side wall of the dust removing cavity close to the bottom end;

an atomizing and spraying mechanism, a corrugated plate and a speed reducing plate are arranged in the dust removing cavity from top to bottom; the atomizing injection mechanism includes: the nozzle seat is communicated with the water guide pipe and is provided with a spray head capable of generating a preset atomization angle; the corrugated plate is provided with a plurality of first open holes with preset apertures; and a plurality of second openings are distributed on the decelerating plate at intervals on the peripheral side deviating from the center.

In a preferred embodiment, the spray heads comprise a plurality of spray heads, the plurality of spray heads are arranged on a cross section of the dust removing cavity at a preset height, and the spray heads are uniformly distributed on the cross section in an equi-phase and equi-axial spacing mode.

In a preferred embodiment, the corrugated plate comprises a first body in a corrugated shape, the first body is provided with a plurality of first openings penetrating through the first body, and the size of the first openings is inversely proportional to the size of the ash discharge amount.

In a preferred embodiment, the speed reduction plate includes a second body in a plate shape, and the second opening formed in the second body is uniformly distributed in a plurality of circles at intervals along a radial direction.

In a preferred embodiment, the second opening is provided with an outer ring round hole, a middle ring round hole and an inner ring round hole which are distributed inwards from the edge of the second body.

In a preferred embodiment, a rust-proof gauze is further arranged in the cavity between the water conduit and the seal top cover.

A well cementation cement truck comprises the dust collector.

In a preferred embodiment, the cementing truck comprises: the device comprises a vehicle body, a water tank and a slurry mixing tank which are arranged on the vehicle body, a water supply high-pressure pipeline connected with the water tank, a mixer water inlet pipe communicated with the water supply high-pressure pipeline, a mixer ash inlet pipe and a high-energy mixer fixed on the upper part of the slurry mixing tank, wherein the mixer water inlet pipe and the mixer ash inlet pipe are respectively communicated with the high-energy mixer, a chimney straight pipe section is arranged on the high-energy mixer, and the chimney straight pipe section is connected with a dust removal device.

In a preferred embodiment, the water inlet pipe of the mixer is provided with a branch pipe, the branch pipe is used as a matching pipe of the dust removing device, and the matching pipe is communicated with the water inlet joint.

In a preferred embodiment, a plug valve, a pressure gauge, a filter and a pressure-resistant hose are arranged between the matching pipeline and the water inlet joint.

The technical scheme of the utility model following beneficial effect that is showing has:

the well cementation cement car that is provided with dust collector that provides in this application, its dust removal intracavity top-down is provided with atomizing injection mechanism, buckled plate and air brake, and chimney exhaust dry dust gets into dust collector via chimney seat upflow, under the effect of air brake, originally is that the columnar flow takes the ash airflow to be slowed down, broken up, and then gets into the dust removal chamber with relatively even state. The corrugated plate has better adsorption effect on dust after being soaked, and due to the corrugated structure, the motion state of dry dust particles is constantly changed, and the dry dust is further decelerated and scattered and uniformly enters the dust removal cavity. High-pressure water flow enters from the water inlet joint, flows to the nozzle seat through the annular water guide pipe and then flows to the atomizing nozzle, is broken into fog drops through rotational flow, and the fog drops are sprayed downwards, adsorbed and settled with dry ash dispersed in the dust removing cavity and then discharged through the water outlet. The purified air is discharged through an outlet on the sealing top cover, so that the dry ash discharge of the well cementation cement truck can be effectively reduced, and the green production requirement is met.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.

FIG. 1 is a schematic structural view of a cementing truck before being refitted;

FIG. 2 is a schematic structural diagram of a dust removing device provided in an embodiment of the present application, which is mounted on a cementing truck;

fig. 3 is a schematic structural diagram of a dust removing device provided in an embodiment of the present application;

FIG. 4 is a front view of an atomizing spray mechanism provided in an embodiment of the present application;

fig. 5 is a sectional view a-a showing a distribution position of spray heads in an atomizing spray mechanism provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a speed reduction plate according to an embodiment of the present application.

Reference numerals of the above figures:

1. a water supply high pressure line; 2. a mixer water inlet pipe; 3. an ash inlet pipe of the mixer; 4. a chimney elbow; 5. a chimney straight pipe section; 6. a high energy mixer; 7. a slurry mixing tank; 8. a mating pipeline; 9. a dust removal device; 90. a dust removal cavity; 91. a spray head; 92. a nozzle holder; 93. a corrugated plate; 94. a speed reduction plate; 12. a plug valve; 13. a pressure gauge; 14. a filter; 15. a pressure-resistant hose; 16. a water inlet joint; 17. sealing the top cover; 18. an antirust gauze; 19. a water conduit; 25. an outlet line; 26. a base; 27. the primary mixer seals the bottom cap.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention, and after reading the present invention, the modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the claims attached to the present application.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to fig. 3, wherein fig. 1 is a schematic structural diagram of a cementing truck before being refitted.

In the present embodiment, the cementing truck is provided with a dust removing device 9. Specifically, the utility model discloses install a dust collector 9 additional in cement truck chimney exit, dust collector 9 has core structure such as air brake 94, buckled plate 93, atomizing injection mechanism. Wherein, the speed reducing plate 94 reduces the speed of the dry ash and breaks up the dry ash, and the dry ash uniformly enters the dust removing cavity 90; the corrugated plate 93 has better adsorption effect on dry ash to achieve the purpose of primary dust removal; the atomization spraying mechanism atomizes and sprays high-pressure water flow, and fog drops are adsorbed and settled with dry ash particles in the mixer to achieve the aim of secondary dust removal.

In addition, this well cementation cement car still includes: the device comprises a vehicle body, a water tank and a slurry mixing tank 7 which are arranged on the vehicle body, a water supply high-pressure pipeline 1 connected with the water tank, a mixer water inlet pipe 2 communicated with the water supply high-pressure pipeline 1, a mixer ash inlet pipe 3, and a high-energy mixer 6 fixed on the upper part of the slurry mixing tank 7, wherein the mixer water inlet pipe 2 and the mixer ash inlet pipe 3 are respectively communicated with the high-energy mixer 6, a chimney straight pipe section 5 is arranged on the high-energy mixer 6, and the chimney straight pipe section 5 is connected with a dust removal device 9.

The slurry mixing process of the well cementation cement truck is as follows: clean water is pumped to the high-energy mixer 6 through the mixer water inlet pipe 2 by the hydraulic pump, and cement is conveyed to the high-energy mixer 6 through the mixer ash inlet pipe 3. The clear water and the cement which enter at high speed complete primary slurry mixing in the high-energy mixer 6. The mixed slurry is stirred by a stirring blade in a slurry mixing tank 7 for further mixing, and the mixed slurry is conveyed to a high-energy mixer 6 again by a slurry circulating pump, so that the multiple mixing of the cement slurry is realized.

As shown in figure 2, a branch is externally connected with the water inlet pipe 2 of the mixer and used for installing a matching pipeline 8 of a dust removal device 9, supplying water to the dust removal device 9, dismantling the original chimney elbow joint 4 of the well cementation cement truck, setting the dust removal device 9 on the straight pipe section 5 of the chimney, arranging a speed reduction plate 94, a corrugated plate 93 and an atomizing and spraying mechanism inside the body of the dust removal device 9, and not influencing the operation space of an operator.

As shown in fig. 3, the mixer inlet pipe 2 is provided with a branch line for a mating line 8 of the dust removing device 9, and the mating line 8 is communicated with the water inlet joint 16. A plug valve 12, a pressure gauge 13, a filter 14 and a pressure-resistant hose 15 are arranged between the matching pipeline 8 and the water inlet joint 16. Specifically, the matched pipeline 8 of the dust removing device 9 is connected in sequence after being buckled by a three-way water pipe: a plug valve 12, a precise pressure gauge 13, a filter 14, a pressure-resistant hose 15 and a dust removal device 9. Wherein, the cock valve 12 is used for controlling the switch of the atomizing dust-removing device 9 and adjusting the flow; the pressure gauge 13 is used for measuring the fluid pressure; the filter 14 is used to filter out larger impurities in the incoming flow to prevent clogging of the spray head 91 inside the dust removing device 9.

Referring to fig. 3, in the embodiments of the present application, a dust removing device 9 for installation on a cementing truck is provided.

The cementing truck may include: the device comprises a vehicle body, a water tank and a slurry mixing tank 7 which are arranged on the vehicle body, a water supply high-pressure pipeline 1 connected with the water tank, a mixer water inlet pipe 2 communicated with the water supply high-pressure pipeline 1, a mixer ash inlet pipe 3, and a high-energy mixer 6 fixed on the upper part of the slurry mixing tank 7, wherein the mixer water inlet pipe 2 and the mixer ash inlet pipe 3 are respectively communicated with the high-energy mixer 6, a chimney straight pipe section 5 is arranged on the high-energy mixer 6, and the chimney straight pipe section 5 is connected with a dust removal device 9. Specifically, this dust collector 9 directly sits and seals on the chimney straight tube through detachable mode, and easy operation is convenient.

In the present embodiment, the dust removing device 9 may include: the dust removal device comprises a hollow dust removal cavity 90, wherein the dust removal cavity 90 is provided with a top end and a bottom end which are opposite, the top end is provided with a sealing top cover 17, and the bottom end is connected with a base 26 in a sealing mode; the side wall of the dust removing cavity 90 close to the top end is provided with a water inlet joint 16, and the side wall of the dust removing cavity 90 close to the bottom end is provided with an outlet pipeline 25; an atomizing and spraying mechanism, a corrugated plate 93 and a speed reducing plate 94 are arranged in the dust removing cavity 90 from top to bottom; the atomizing injection mechanism includes: a water guide pipe 19 communicated with the water inlet joint 16, and a nozzle holder 92 communicated with the water guide pipe 19, wherein the nozzle holder 92 is provided with a spray head 91 capable of generating a preset atomization angle; the corrugated plate 93 is provided with a plurality of first open holes of a predetermined aperture; a plurality of second openings are spaced around the outer circumference of the speed reduction plate 94.

In the present embodiment, the dust removing device 9 has a hollow dust removing chamber 90, and the dust removing chamber 90 is used as a body of the dust removing device 9 and is used for accommodating each dust removing component. Specifically, the dusting chamber 90 has opposite top and bottom ends. Wherein, the top end is an opening end, a sealing top cover 17 is arranged on the top end, and the top end of the dust removing cavity 90 is sealed to prevent dry ash from escaping. This bottom end is also an open end, at which a primary mixer sealing bottom cap 27 is provided, by means of which primary mixer sealing bottom cap 27 a sealing connection with base 26 is achieved. The primary mixer sealing bottom cover 27 may be in the form of foam rubber, that is, the base 26 of the dust removing device 9 is seated on the straight pipe section 5 of the chimney, and the gap between the two is filled with the foam rubber, so as to realize sealing.

The side wall of the dust removing cavity 90 near the top end is provided with a water inlet joint 16 which is used for connecting the water supply high-pressure pipeline 1 through a pressure-resistant pipeline so as to supply water into the dust removing cavity 90. An outlet pipeline 25 is arranged on the side wall of the dust removing cavity 90 close to the bottom end and is used for communicating the slurry mixing tank 7.

In the present embodiment, an atomizing spray mechanism, a corrugated plate 93, and a speed reduction plate 94 are provided in the dust removing chamber 90 from the top down.

Wherein, atomizing injection mechanism includes: a water guide pipe 19 communicated with the water inlet joint 16, and a nozzle seat 92 communicated with the water guide pipe 19, wherein the nozzle seat 92 is provided with a spray head 91 capable of generating a preset atomization angle. Specifically, the water conduit 19 may be fixed to the dust removing chamber 90 of the dust removing device 9 by a welding bracket. The nozzle holder 92 may be welded to the water guide pipe 19 by welding, and the nozzle head 91 and the nozzle holder 92 may be screwed.

Specifically, referring to fig. 4 and 5, the spray heads 91 include a plurality of spray heads 91, and the plurality of spray heads 91 are disposed on a cross section of the dust removing chamber 90 at a predetermined height, and are uniformly distributed on the cross section in an equi-axial spacing manner with an equal phase angle. Specifically, as shown in fig. 5, one nozzle 91 is disposed at the center of the cross section, and the rest of the nozzles 91 located outside the center are distributed around the center at equal phase angles and equal axial intervals by two turns.

As shown in fig. 4, the nozzles 91 of the dust removing device 9 are arranged in two circles, one at the center of the circle, four at the inner circle, and eight at the outer circle. The nozzles 91 are vertically installed on the water guide pipe 19 with the outlets vertically downward. Subsequently, the matching pipeline 8 is adopted to supply water to the atomizing nozzle 91, and no additional power source is needed.

Because the nozzle of the nozzle 91 can generate an atomizing angle with a certain size, when the nozzle adopts a central and inner and outer circle distribution mode, the dust removing cavity 90 can be uniformly filled with the fog drops sprayed out by the nozzle 91. The fog drops move vertically downwards in the opposite direction to the dry ash, which is beneficial to the mutual contact of the fog drops and the dry ash. The uniformly distributed fog drops are uniformly mixed with the dry ash dispersed in the dust removal cavity 90, so that the quality of dry ash particles is increased, and the dry ash sedimentation is facilitated. Meanwhile, the sprayed mist drops on the corrugated plate 93 to continuously soak the corrugated plate 93, so that the adsorption effect of the corrugated plate on dry ash is enhanced. The nozzle 91 may be a swirl nozzle, and the specific size of the atomization angle is not limited in this application, and may be, for example, 30-45 °.

In this embodiment, the wetted corrugated plate 93 has an adsorption effect on the dry ash particles, and simultaneously, the motion state of the dry ash is continuously changed, so that the dry ash is further decelerated and scattered.

The corrugated plate 93 comprises a corrugated first body, a plurality of first openings penetrating through the first body are formed in the first body, and the size of the aperture of each first opening is inversely proportional to the size of ash discharge.

Specifically, the corrugated plate 93 may have a corrugated structure and a first opening. The aperture of the first opening can be adaptively selected according to the ash discharge amount. Specifically, the first opening can be divided into a small hole, a medium hole and a large hole, and the small hole corrugated plate 93 and the large hole corrugated plate 93 are used for large ash discharge amount and small ash discharge amount respectively. If the ash discharge amount is variable, a plurality of layers of corrugated plates 93 with different pore diameters can be used together.

In the present embodiment, the corrugated plate 93 may be positioned by the speed reduction plate 94, and for example, the corrugated plate 93 may be placed on the speed reduction plate 94. Of course, the corrugated plate 93 can also be positioned by providing a stop in the dust-removing chamber 90.

As shown in fig. 6, in the present embodiment, the dust particles are decelerated and scattered by the deceleration plate 94, and then uniformly enter the dust removing chamber 90. The speed reduction plate 94 includes a second body in the form of a plate, and a plurality of circles of second openings are formed in the second body and are uniformly spaced along the radial direction. Specifically, the second opening is internally distributed with an outer ring round hole, a middle ring round hole and an inner ring round hole from the edge of the second body.

In the present embodiment, the speed reduction plate 94 may be fixed in the dust removing chamber 90 by a fixing member. Specifically, the fixing member may be in the form of a screw, i.e., the speed reduction plate 94 may be fixed by a screw. Of course, the fixing member may be in other forms, and the application is not limited in detail herein.

As shown in fig. 6, specifically, the inner ring, the middle ring and the outer ring of the speed reduction plate 94 have 8, 12 and 20 circular holes with a diameter of 40MM, respectively, and when passing through the speed reduction plate 94, the dust-carrying air can only pass through the circular holes. This causes the cement dry ash particles entering the dust removing device 9 to be decelerated and scattered by the decelerating plate 94, and uniformly enter the dust removing chamber 90.

In one embodiment, a rust inhibiting gauze 18 is also provided within the cavity between the conduit 19 and the seal cap 17. The anti-rust gauze 18 is used for preventing the fog drops from being brought away from the dust removal cavity 90 by air, and the dust removal effect is influenced. Specifically, the rust-preventive gauze 18 may not be fixed and may be directly placed on the nozzle holder.

The well cementation cement truck provided with the dust removal device 9 provided in the specification has the following working principle:

the dry ash discharged from the chimney flows upward through the chimney seat and enters the dust removing device 9, and the ash carrying airflow which originally flows in a columnar shape is decelerated and scattered under the action of the decelerating plate 94, and then enters the dust removing cavity 90 in a relatively uniform state. The corrugated plate 93 has a good adsorption effect on dust after being wetted, and due to the corrugated structure, the motion state of dry dust particles is continuously changed, and the dry dust is further decelerated and scattered and uniformly enters the dust removing cavity 90. The high-pressure water flow enters from the water inlet joint 16, passes through the annular water guide pipe 19, reaches the nozzle seat 92 and then reaches the atomizing nozzle 91, is broken into fog drops through rotational flow, and the fog drops are sprayed downwards, adsorbed and settled with dry ash dispersed in the dust removal cavity 90 and then discharged through the water outlet. The purified air is discharged through an outlet in the seal cap 17.

On the whole, the dust collector 9 that this application provided has following characteristics for current dust collecting equipment:

(1) aiming at the characteristics of high air speed and unstable ash amount at the ash discharge position of the well cementation cement truck, the speed reduction plate 94 structure in the dust removal device 9 can reduce the speed and break up dry ash particles, and the dry ash particles uniformly enter the dust removal cavity 90;

(2) the corrugated plate 93 in the dust removing cavity 90 has better adsorption effect on dry dust particles after being soaked, so that the purpose of adsorption and dust removal is achieved; the motion state of the dry dust particles in the corrugated plate 93 is changed continuously, and the dry dust is further decelerated and scattered and uniformly enters the upper part of the dust removing cavity 90; according to different ash discharge amounts of the cement truck, a corrugated plate 93 with a proper aperture can be selected;

(3) aiming at the distribution characteristics of dry ash particles, the atomizing nozzle 91 adopts a central and inner and outer circle distribution mode, so that the dust removal cavity 90 is uniformly filled with fog drops sprayed out by the nozzle 91, and the fog drops and the dry ash dispersed in the dust removal cavity 90 are adsorbed and settled to achieve the aim of atomizing and removing dust.

(4) The dust removal device 9 can be detached, the installing mode is simple, the device base 26 is directly seated on a straight chimney pipeline and is small in size, and the additionally installed matched pipeline 8 does not influence the normal work of an operator.

Integrally, when the cement truck is installed, a water pipe joint is additionally arranged on an original high-pressure water pipe of the well cementation cement truck, and a matched pipeline 8 of a dust removal device 9 is connected behind the joint; and (3) dismantling the chimney elbow of the well cementation cement truck, setting the dust removal device 9 body on the straight chimney pipeline, and finishing the installation of the dust removal device 9.

During construction, the high-pressure ball valve is opened and the dust removal device 9 is started, so that the purposes of dust removal and dust fall can be achieved, the discharge of dry ash of a well cementation cement truck can be effectively reduced, the green production requirement is met, and the environment is protected.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above embodiments are only embodiments of the present invention, and although the embodiments of the present invention are disclosed as above, the contents are only embodiments adopted for facilitating understanding of the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A dust removing device characterized by comprising:

2. The dust removing apparatus as claimed in claim 1, wherein the spray head comprises a plurality of spray heads, the plurality of spray heads are arranged on a cross section of the dust removing chamber at a predetermined height, and the spray heads are uniformly distributed on the cross section in an equi-axial and equi-axial spacing manner.

3. The dust removing apparatus of claim 1, wherein the corrugated plate includes a first body having a corrugated shape, the first body being provided with a plurality of first openings penetrating the first body, and the size of the first openings is inversely proportional to the amount of dust discharged.

4. The dust removing device of claim 1, wherein the speed reducer plate comprises a second body having a plate shape, and the second opening formed in the second body is uniformly spaced in a plurality of turns in a radial direction.

5. The dusting apparatus of claim 4 whereby the second opening has an outer circular aperture, a middle circular aperture and an inner circular aperture distributed inwardly from the edge of the second body.

6. The dust removing device of claim 1, wherein a rust-proof gauze is further arranged in the cavity between the water conduit and the sealing top cover.

7. A well cementing truck characterized in that it comprises a dust removing device as claimed in any one of claims 1 to 6.

8. The well cementing cement vehicle of claim 7, comprising: the device comprises a vehicle body, a water tank and a slurry mixing tank which are arranged on the vehicle body, a water supply high-pressure pipeline connected with the water tank, a mixer water inlet pipe communicated with the water supply high-pressure pipeline, a mixer ash inlet pipe and a high-energy mixer fixed on the upper part of the slurry mixing tank, wherein the mixer water inlet pipe and the mixer ash inlet pipe are respectively communicated with the high-energy mixer, a chimney straight pipe section is arranged on the high-energy mixer, and the chimney straight pipe section is connected with a dust removal device.

9. The well cementation cement vehicle of claim 8, wherein the mixer water inlet pipe is provided with a branch line for serving as a mating line of the dust removal device, the mating line being in communication with the water inlet joint.

10. The well cementation cement truck as claimed in claim 9, wherein a cock valve, a pressure gauge, a filter and a pressure hose are provided between the mating pipeline and the water inlet joint.