CN113134912B - Concrete mixer with dust device - Google Patents
Concrete mixer with dust device Download PDFInfo
- Publication number
- CN113134912B CN113134912B CN202110458087.7A CN202110458087A CN113134912B CN 113134912 B CN113134912 B CN 113134912B CN 202110458087 A CN202110458087 A CN 202110458087A CN 113134912 B CN113134912 B CN 113134912B
- Authority
- CN
- China
- Prior art keywords
- dust
- feeding cylinder
- dust collecting
- port
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0887—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing provided with sieves or filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/14—Supply means incorporated in, or mounted on, mixers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A concrete mixer with a dust-settling device relates to the technical field of concrete mixing, and comprises a mixing tank, wherein the lower end of the mixing tank is a discharge hole, a motor is installed in the mixing tank, and a mixing blade is connected below the motor in a shaft mode and used for mixing concrete; the middle lower part of the feeding cylinder is vertically inserted into an upper port of the stirring tank, the upper end of the feeding cylinder is a feeding port, the lower end of the feeding cylinder is a discharging port, and a mesh screen is arranged in the middle of the feeding cylinder; form annular recovery chamber between the outside of feed cylinder lateral wall and the upper end mouth inside of agitator tank, the upper end in annular recovery chamber seals and the lower extreme opening, installs dust collecting pipe on the lateral wall in annular recovery chamber, and dust collecting pipe communicates with dust collecting fan's suction opening, and dust collecting fan's air outlet communicates to collecting the chamber in, collects the chamber and is used for collecting the raise dust that the air outlet blew off. The device can avoid dust raising, and the construction site meets the environmental protection requirement.
Description
Technical Field
The invention relates to the technical field of concrete mixing, in particular to a concrete mixer with a dust falling device.
Background
In engineering construction of water conservancy, national defense, ports and docks, roads, house buildings, civil engineering and the like, the consumption of concrete is very large, the concrete is often required to be prepared and stirred on site for use, the raw materials of the concrete are usually cement, water, sand and stones, and the raw material proportion is adjusted adaptively according to different requirements. At present, the concrete of on-spot stirring is usually gone on in the agitator, and the agitator is usually the slope installation, is usually when stirring the concrete: firstly, sand and stones are poured into a stirring barrel, and cement is powdery, so that a large amount of dust is easily raised in the ambient air in the pouring and stirring processes, therefore, the cement is usually poured into the stirring barrel in batches for stirring, the purpose is to reduce the raised dust, but when the cement is poured into the stirring barrel in batches, a large amount of raised dust is still dispersed in the air at the barrel mouth of the stirring barrel, the ambient construction environment is seriously polluted, the environmental protection requirement cannot be met, and workers are not good for the health when working in the environment; in addition, the cement floats above water in the stirring period, and a large amount of dust can be raised when the cement is stirred in the stirring barrel, so that the environment around construction is polluted; the cement powder dispersed in the air can not be recycled, and the method also belongs to the waste of a material.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a concrete stirrer with a dust falling device, which can avoid dust raising and enable a construction site to meet the environmental protection requirement.
The purpose of the invention can be realized by the following technical scheme: a concrete mixer with a dust falling device comprises a mixing tank, wherein a discharge hole is formed in the lower end of the mixing tank, a motor is installed in the mixing tank, a mixing blade is connected below the motor in a shaft connection mode, and the mixing blade is used for mixing concrete; the middle lower part of the feeding cylinder is vertically inserted into the upper port of the stirring tank, the upper end of the feeding cylinder is a feeding port, the lower end of the feeding cylinder is a discharging port, and a mesh screen is arranged in the middle of the feeding cylinder; the dust collecting device comprises a feeding cylinder, a stirring tank, a dust collecting fan, a dust collecting pipeline, a dust collecting fan, a dust collecting cavity and a dust collecting device, wherein an annular recovery cavity is formed between the outer part of the side wall of the feeding cylinder and the inner part of an upper end opening of the stirring tank, the upper end of the annular recovery cavity is closed, the lower end opening of the annular recovery cavity is provided with the dust collecting pipeline, the dust collecting pipeline is communicated with a suction opening of the dust collecting fan, an air outlet of the dust collecting fan is communicated into the collection cavity, and the collection cavity is used for collecting raised dust blown out from the air outlet.
Preferably, an axial flow fan is arranged in the feeding cylinder, the axial flow fan is installed below the mesh screen, and the air flowing direction passing through the axial flow fan is from top to bottom.
Preferably, a spraying device is arranged in the stirring tank, the spraying device is located between the feed opening and the two parts arranged up and down of the motor, the spraying device is provided with a plurality of nozzles, the nozzles are distributed in a circular ring shape, the nozzles spray water towards the inner side of the circular ring shape, and the diameter of the circular ring formed by the nozzles is larger than that of the end part of the feed opening.
Preferably, spray set is still including enclosing into circular shape spray tube, the fixed embedding of spray tube in the lateral wall of agitator tank, the nozzle circumference equipartition is in the circular inboard of spray tube, the inlet tube is followed the lateral wall of agitator tank is sealed insert the back with the spray tube intercommunication.
Preferably, the water sprayed from the nozzle faces a central axis of a circle surrounded by the spray pipe, and the water sprayed from the nozzle is inclined downwards to face the motor.
Preferably, the side wall of the annular recovery cavity is provided with at least two dust outlets which are uniformly distributed circumferentially, each dust outlet is provided with one dust collecting pipeline, and outlets of the dust collecting pipelines are communicated to a suction opening of the dust collecting fan.
Preferably, the collection cavity is an inner cavity of the feeding cylinder, a recovery pipeline is installed at an air outlet of the dust collection fan, a dust return port is formed in the side wall of the feeding cylinder, the dust return port is located between the mesh screen and the axial flow fan, and the tail end of the recovery pipeline penetrates through the side wall of the upper end of the stirring tank and the annular recovery cavity in a sealing mode and then is installed on the dust return port.
Preferably, the number of the dust return ports is at least 2 uniformly distributed on the circumference of the feeding cylinder, the recovery pipeline is bifurcated into two branch pipes, the ports of the two branch pipes are respectively communicated with the two dust return ports, and the ports of the branch pipes are obliquely and downwardly communicated to the dust outlet.
Preferably, the collection chamber is a dust collection box, an air outlet of the dust collection fan is communicated with an inlet of the dust collection box, a filter is arranged in the dust collection box, and a silencer is arranged in an outlet of the dust collection box.
Preferably, the feed cylinder exposes the upper portion outside of agitator tank with the last port department of agitator tank installs a plurality of reinforcing plate muscle, reinforcing plate muscle circumference equipartition.
The working principle and the advantages of the invention are as follows:
the ingredients of the concrete fall from the feed inlet and are divided into uniform thin flows at the mesh screen, the ingredients fall under the dual effects of self weight and the suction force of the axial flow fan, gaps are formed among the thin flows formed by the ingredients under the shunting of the mesh screen, and the suction force of the axial flow fan can suck the raised dust generated in the blanking process downwards, so that the large-scale raised dust generated at the feed inlet is avoided; the ingredients fall into the stirring tank from the feed opening, cement cannot be dissolved with other ingredients quickly and a large amount of dust can be lifted in the stirring process of the motor and the stirring blades, the dust collecting fan pumps the annular recovery cavity into negative pressure through the dust collecting pipeline, and the lifted dust in the stirring process can be pumped out to the dust collecting cavity through the annular recovery cavity and collected; because the feed opening still has certain height apart from the highest stirring surface of concrete, and the cement that the feed opening falls has certain kinetic energy, therefore the cement can splash the raise dust between the height between feed opening and the stirring surface and in the moment of falling onto the stirring surface, the negative pressure of the cyclic annular recycling cavity can also pump out the raise dust to collect in the dust collecting cavity; in addition, at the space installation spray set between feed opening and motor (the highest stirring face promptly) to nozzle spun watering encircles around the below of feed opening, can surround the cement post that feed opening department fell in the watering, can play the effect of dust fall, and can also make the even water mixture that is stained with of cement, reduce at the stirring in-process because cement floats the raise dust that the time overlength on the stirring face leads to.
In conclusion, the mesh screen, the axial flow fan, the annular recovery cavity, the dust collection fan, the spraying device and the like are arranged at the upper port of the stirring tank, so that the problems of cement feeding and dust emission in the stirring process can be well controlled, the air quality of a construction site is greatly improved, dust pollution caused by the surrounding environment of construction is avoided, the dust collection device has important significance for environment-friendly construction, the recovered dust can be reused after being collected, and waste of raw materials is avoided.
Drawings
Fig. 1 is a schematic front view of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the internal structure of embodiment 1 of the present invention.
Fig. 3 isbase:Sub>A schematic view ofbase:Sub>A sectionbase:Sub>A-base:Sub>A of fig. 2 andbase:Sub>A connection structure ofbase:Sub>A dust collection fan.
Fig. 4 is a schematic front view of embodiment 2 of the present invention.
Fig. 5 is a schematic view of the internal structure of embodiment 2 of the present invention.
Fig. 6 is a schematic view of a section B-B of fig. 5 and a connection structure of a dust collecting duct.
Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.
Detailed Description
The invention is further illustrated by the following figures and examples.
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Example 1
A concrete mixer with a dust-settling device is shown in figures 1-3 and comprises a mixing tank 1, wherein the lower end of the mixing tank 1 is provided with a discharge port 2, and a switch valve 21 is arranged on the discharge port 2 to control the opening and closing of the discharge port 2; a motor 3 is arranged in the stirring tank 1, a rotating shaft of the motor 3 faces downwards, a stirring blade 4 is arranged on the rotating shaft of the motor 3, and the stirring blade 4 is used for stirring concrete; the middle lower part of the feeding cylinder 5 is vertically inserted into the upper port of the stirring tank 1, the upper end of the feeding cylinder 5 is a feeding port 51, the lower end of the feeding cylinder 5 is a discharging port 52, the middle part in the feeding cylinder 5 is provided with a mesh screen 6, and meshes of the mesh screen 6 are larger than ingredients with the largest diameter particles in concrete ingredients; the diameter of feed cylinder 5 is less than the diameter of the last port of agitator tank 1 the outside of the 5 lateral walls of feed cylinder with form annular recovery chamber 7 between the inside of the last port of agitator tank 1, the upper end of annular recovery chamber 7 seals and the lower extreme opening install dust collecting pipe 8 on the lateral wall of annular recovery chamber 7, dust collecting pipe 8 and dust collecting fan 9's suction opening intercommunication, dust collecting fan 9's air outlet communicates to in collecting the chamber, collecting the chamber and being used for collecting the raise dust that dust collecting fan 9 blew off.
An axial flow fan 10 is arranged in the feeding cylinder 5, the axial flow fan 10 is installed below the mesh screen 6, a power source of the axial flow fan 10 faces the mesh screen 6, and a conical cover shed 11 is installed above the power source in order to prevent cement from accumulating at the power source during feeding; the air flowing through the axial flow fan 10 is from top to bottom, i.e. the feed inlet 51 is under negative pressure, so that the dust generated at the feed outlet 52 can be sucked into the feed cylinder 5.
A spraying device is arranged in the stirring tank 1 and is positioned between the feed opening 52 and the two parts of the motor 3 which are arranged up and down, the spraying device is provided with a plurality of nozzles 12, the nozzles 12 are distributed in a circular ring shape, the nozzles 12 spray water towards the inner side of the circular ring shape, and the diameter of the circular ring formed by the nozzles 12 is larger than that of the end part of the feed opening 52; the spraying device further comprises a circular spraying pipe 13, the spraying pipe 13 is fixedly embedded into the side wall of the stirring tank 1, the nozzles 12 are uniformly distributed on the circular inner side of the spraying pipe 13 in the circumferential direction, and a water inlet pipe 14 is communicated with the spraying pipe 13 after being hermetically inserted from the side wall of the stirring tank 1; the water sprinkles sprayed by each spray pipe 13 are conical, so that the water sprinkles sprayed by all the spray pipes 13 simultaneously can be completely covered on the circumference, and when cement falls from the discharge opening 52, the water sprinkles can surround a cylinder formed by cement discharging, so that the cement can be mixed before falling, the stirring process is accelerated, and the dust falling effect is achieved; nozzle 12 spun water spray orientation the circular center pin that spray tube 13 encloses, and nozzle 12 spun water spray slope is downward towards motor 3 direction, stirring vane 4 and motor 3 are coaxial with the center pin of agitator tank 1 usually, and the material barrel that falls in this device preferentially adopts the coaxial setting of center pin with agitator tank 1, and feed opening 52 is located motor 3 directly over, has partial material to fall on motor 3 during the blanking, and nozzle 12 spun water spray is towards motor 3, makes motor 3 can play clear effect, prevents that the mortar from pasting motor 3 and making motor 3 break down (for example destroy motor 3 shaft seal and make inside entering impurity, motor 3 circuit emergence wearing and tearing etc.).
In this embodiment, the collecting cavity is an inner cavity of the feeding cylinder 5, a recycling pipe 15 is installed at an air outlet of the dust collecting fan 9, a dust return port 16 is formed in a side wall of the feeding cylinder 5, the dust return port 16 is located between the mesh screen 6 and the axial flow fan 10, and the end of the recycling pipe 15 penetrates through a side wall of the upper end of the stirring tank 1 and the annular recycling cavity 7 in a sealing manner and then is installed on the dust return port 16. The dust collection fan 9 recovers the collected raised dust into the feeding cylinder 5 again, the raised dust is remitted along with the falling cement in the feeding cylinder 5, and the feeding cylinder 5-the annular recovery cavity 7-the dust collection fan 9-the feeding cylinder 5 are used as circulation to form a collection and recovery closed loop of the raised dust, so that the raised dust is prevented from dispersing into the surrounding environment of construction.
In order to ensure that the force for pumping the raised dust in the annular recovery cavity 7 is uniform and stable, two dust outlets 17 which are uniformly distributed on the circumference are arranged on the side wall of the annular recovery cavity 7, two dust outlets 17 are respectively provided with one dust collecting pipeline 8, and the outlets of the two dust collecting pipelines 8 are communicated to the air suction port of the dust collecting fan 9. Similarly, in order to make the raised dust more uniformly dispersed and quickly merged into the falling cement material when the raised dust is flushed into the feeding cylinder 5, the number of the dust return ports 16 uniformly distributed on the circumference of the feeding cylinder 5 is 2, the recovery pipeline 15 is bifurcated into two branch pipes, the ports of the two branch pipes are respectively communicated with the two dust return ports 16, and the ports of the branch pipes are obliquely and downwardly communicated to the dust outlet 17. The downward inclination is to ensure that the ingredients falling from the feed inlet 51 cannot flow back into the branch pipe, so as to prevent the branch pipe from being blocked, and the dust wind flow which can be conveniently collected can be mixed along the falling ingredients.
The feeding cylinder 5 is exposed out of the outer side of the upper part of the stirring tank 1 and the upper port of the stirring tank 1 are provided with a plurality of reinforcing plate ribs 18, and the reinforcing plate ribs 18 are evenly distributed on the circumference.
The working principle and the advantages of the embodiment of the invention are as follows:
the ingredients of the concrete fall from the feed port 51 and are divided into uniform thin flows at the mesh screen 6, the ingredients fall under the dual functions of self weight and suction of the axial flow fan 10, gaps are formed among the thin flows formed by the ingredients under the shunting of the mesh screen 6, the suction of the axial flow fan 10 can suck the raised dust generated in the blanking process downwards, and the large-scale raised dust generated at the feed port 51 is avoided; the ingredients fall into the stirring tank 1 from the feed opening 52, cement cannot be dissolved with other ingredients rapidly and a large amount of dust can be lifted in the stirring process of the motor 3 and the stirring blades 4, the dust collecting fan 9 pumps the annular recovery cavity 7 into negative pressure through the dust collecting pipeline 8, and the lifted dust in the stirring process can be pumped out to the dust collecting cavity through the annular recovery cavity 7 and collected; because the feed opening 52 still has certain height apart from the highest stirring face of concrete, and the cement that feed opening 52 fell has certain kinetic energy, consequently the cement still can splash the raise dust between the height between feed opening 52 and the stirring face and fall the moment on the stirring face, the raise dust that splashes can also be taken out to the negative pressure of cyclic annular recovery chamber 7, and collect to the feed cylinder 5 through the recovery pipeline 15, with the cement material of whereabouts inward-remittance recovery, form closed loop circulation, form the negative pressure under the dual function of axial fan 10 and dust collecting fan 9 in the feed cylinder 5 simultaneously, so the raise dust can be effectively retrieved, play the effect that prevents the raise dust from the feed inlet 51 effluvium.
In addition, a spraying device is arranged in a space between the feed opening 52 and the motor 3 (namely the highest stirring surface), and the water sprayed from the nozzle 12 surrounds the periphery of the lower part of the feed opening 52, so that a cement column falling from the feed opening 52 can be surrounded in the water sprayed, the effect of dust fall can be achieved, the cement can be uniformly wetted and mixed, and dust caused by the fact that the cement floats on the stirring surface for too long time in the stirring process is reduced.
In conclusion, the mesh screen 6, the axial flow fan 10, the annular recovery cavity 7, the dust collecting fan 9, the spraying device and the like are arranged at the upper port of the stirring tank 1, so that the problems of cement feeding and dust raising in the stirring process can be well controlled, the air quality of a construction site is greatly improved, dust pollution caused by the surrounding environment of construction is avoided, the dust collecting device has important significance for environment-friendly construction, the recovered dust can be reused after being collected, and waste of raw materials is avoided.
Example 2
The structure and connection relationship of the embodiment 2 are the same as those of the embodiment 1, and the difference is that:
as shown in fig. 4-6, the collecting chamber is a dust collecting box 19, the air outlet of the dust collecting fan 9 is communicated with the inlet of the dust collecting box 19, in order to simplify the installation structure, the dust collecting fan 9 can be directly installed at the inlet of the dust collecting box 19, a filter is arranged in the dust collecting box 19 for filtering the air flow mixed with the raised dust fed by the dust collecting fan 9, the filtered clean air flow in the dust collecting box 19 is discharged from the outlet of the dust collecting box 19, and in order to improve the environmental quality of the construction site, a silencer is installed in the outlet of the dust collecting box 19 to reduce noise and make the construction site more environment-friendly.
In this embodiment, the dust collection box 19 is used for collecting the dust generated at each part of the mixer during the concrete mixing process, and the collected dust is settled in the dust collection box 19 for recycling, thereby avoiding the waste of raw materials.
The structures, the proportions, the sizes, and the like shown in the drawings attached to the present specification are only used for matching with the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used for limiting the conditions under which the present invention can be implemented, so that the present invention has no technical essence, and any structural modification, changes of the proportion relation, or adjustment of the size, should fall within the scope of the technical disclosure of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention has been described above with reference to preferred embodiments, but the scope of protection of the invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the scope of protection of the invention. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.
Claims (5)
1. A concrete mixer with a dust-settling device comprises a mixing tank (1), wherein the lower end of the mixing tank (1) is provided with a discharge hole (2), a motor (3) is arranged in the mixing tank (1), a mixing blade (4) is connected below the motor (3) in a shaft way, the mixing blade (4) is used for mixing concrete, and the concrete mixer is characterized in that,
the middle lower part of the feeding cylinder (5) is vertically inserted into the upper port of the stirring tank (1), the upper end of the feeding cylinder (5) is provided with a feeding port (51), the lower end of the feeding cylinder is provided with a discharging port (52), and the middle part in the feeding cylinder (5) is provided with a mesh screen (6); an annular recovery cavity (7) is formed between the outer part of the side wall of the feeding cylinder (5) and the inner part of the upper port of the stirring tank (1), the upper end of the annular recovery cavity (7) is closed, the lower end of the annular recovery cavity is opened, a dust collecting pipeline (8) is installed on the outer side wall of the annular recovery cavity (7), the dust collecting pipeline (8) is communicated with an air suction opening of a dust collecting fan (9), an air outlet of the dust collecting fan (9) is communicated into a collecting cavity, and the collecting cavity is used for collecting raised dust blown out by the dust collecting fan (9);
an axial flow fan (10) is arranged in the feeding cylinder (5), the axial flow fan (10) is installed below the mesh screen (6), and the air flowing through the axial flow fan (10) flows from top to bottom;
at least two dust outlets (17) which are uniformly distributed on the circumference are formed in the side wall of the annular recovery cavity (7), each dust outlet (17) is provided with one dust collecting pipeline (8), and the outlets of the dust collecting pipelines (8) are communicated to the air suction port of the dust collecting fan (9);
the collection cavity is an inner cavity of the feeding cylinder (5), a recovery pipeline (15) is installed at an air outlet of the dust collection fan (9), a dust return port (16) is formed in the side wall of the feeding cylinder (5), the dust return port (16) is located between the mesh screen (6) and the axial flow fan (10) which are vertically arranged, and the tail end of the recovery pipeline (15) penetrates through the side wall of the upper end of the stirring tank (1) and the annular recovery cavity (7) in a sealing mode and then is installed on the dust return port (16);
the dust return ports (16) are at least 2 in number and are uniformly distributed on the circumference of the feeding cylinder (5), the recovery pipeline (15) is divided into two branch pipes, the ports of the two branch pipes are respectively communicated with the two dust return ports (16), and the ports of the branch pipes are obliquely and downwards communicated to the dust outlet (17).
2. The concrete mixer with the dust fall device according to claim 1, wherein a spraying device is arranged in the mixing tank (1), the spraying device is located between the feed opening (52) and the motor (3) which are arranged up and down, the spraying device is provided with a plurality of nozzles (12), the nozzles (12) are distributed in a circular ring shape, the nozzles (12) spray water towards the inner side of the circular ring shape, and the diameter of the circular ring formed by the nozzles (12) is larger than the diameter of the end part of the feed opening (52).
3. The concrete mixer with the dust fall device according to claim 2, wherein the spraying device further comprises a circular spray pipe (13), the spray pipe (13) is fixedly embedded in the side wall of the mixing tank (1), the nozzles (12) are circumferentially and uniformly distributed on the circular inner side of the spray pipe (13), and a water inlet pipe (14) is hermetically inserted from the side wall of the mixing tank (1) and then is communicated with the spray pipe (13).
4. A concrete mixer with a dust fall device according to claim 3, characterized in that the water spray from the nozzle (12) is directed towards the central axis of the circle enclosed by the nozzle (13), and the water spray from the nozzle (12) is directed obliquely downwards towards the motor (3).
5. The concrete mixer with the dust fall device according to claim 1, wherein a plurality of reinforcing plate ribs (18) are arranged on the outer side of the upper part of the feeding cylinder (5) exposed out of the stirring tank (1) and at the upper port of the stirring tank (1), and the reinforcing plate ribs (18) are uniformly distributed on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458087.7A CN113134912B (en) | 2021-04-27 | 2021-04-27 | Concrete mixer with dust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458087.7A CN113134912B (en) | 2021-04-27 | 2021-04-27 | Concrete mixer with dust device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113134912A CN113134912A (en) | 2021-07-20 |
| CN113134912B true CN113134912B (en) | 2023-03-14 |
Family
ID=76812294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110458087.7A Active CN113134912B (en) | 2021-04-27 | 2021-04-27 | Concrete mixer with dust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113134912B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4129869B2 (en) * | 2003-10-01 | 2008-08-06 | オル・ジャパン株式会社 | Concrete, building materials, residual soil processing mixer |
| CN104960925A (en) * | 2015-05-14 | 2015-10-07 | 浙江省新昌县澄潭茶厂 | Tea-collecting machine with filtering function |
| CN206374035U (en) * | 2016-12-04 | 2017-08-04 | 缙云县南瓯堂企业管理咨询有限公司 | A kind of concrete mixer of anti-airborne dust |
| CN107715716A (en) * | 2017-10-23 | 2018-02-23 | 江苏脒诺甫纳米材料有限公司 | Powder and liquid mixing agitator |
| CN209155789U (en) * | 2018-11-19 | 2019-07-26 | 焦作隆丰皮草企业有限公司 | A kind of chromium powder addition bucket of not fugitive dust |
-
2021
- 2021-04-27 CN CN202110458087.7A patent/CN113134912B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113134912A (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113134912B (en) | Concrete mixer with dust device | |
| CN210935366U (en) | Civil construction engineering construction waste material environmental protection processing apparatus | |
| CN207188186U (en) | A kind of chemical fertilizer granule determines diameter screening installation | |
| CN211967965U (en) | Concrete mixing equipment for building | |
| CN214209946U (en) | Dust removal environment-friendly device for cement production | |
| CN209034205U (en) | A kind of liquid manure mixing arrangement | |
| CN211594334U (en) | Dust settling system applied to concrete bin | |
| CN210525469U (en) | Pre-crushed cement mortar mixing machine for building | |
| CN212943558U (en) | Special anti-blocking high-pressure atomizing nozzle for textile air conditioning room | |
| CN213203617U (en) | Guniting device | |
| CN212528215U (en) | Stirring building suitable for concrete permeates water | |
| CN218871549U (en) | Dust collecting device | |
| CN114150753A (en) | Environment-friendly urban road gutter inlet | |
| CN209057519U (en) | A kind of high-efficiency agriculture production irrigation equipment | |
| CN209631128U (en) | A kind of production equipment of emulation mineral varnish | |
| CN219235685U (en) | Prefabricated dry powder mortar equipment | |
| CN112873379A (en) | Pasture and water drying device that hydraulic engineering used | |
| CN112372835A (en) | High-efficient agitating unit of raw materials for production of aerated concrete brick | |
| CN220586849U (en) | Wetland watering ware | |
| CN207432502U (en) | A kind of anti-airborne dust concrete stirring system | |
| CN213078234U (en) | A agitating unit for building material makes | |
| CN211216510U (en) | Mixing dust suppression device for cement mortar | |
| CN215178096U (en) | Raw material weighing device for manufacturing reinforced concrete drain pipe | |
| CN212998731U (en) | Production filtration system for titanium dioxide | |
| CN218239465U (en) | Novel stirring station cement sample device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |