CN214925826U - Powder feeding device of concrete mixing plant - Google Patents

Powder feeding device of concrete mixing plant Download PDF

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Publication number
CN214925826U
CN214925826U CN202120828197.3U CN202120828197U CN214925826U CN 214925826 U CN214925826 U CN 214925826U CN 202120828197 U CN202120828197 U CN 202120828197U CN 214925826 U CN214925826 U CN 214925826U
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China
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feeding
feeding pipe
pipe
powder
mixing plant
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CN202120828197.3U
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贾强
陈勇
敬勇文
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Sichuan Hengding Building Materials Co ltd
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Sichuan Hengding Building Materials Co ltd
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Abstract

The application relates to a powder feeding device of a concrete mixing plant, which comprises a feeding component, a motor and a blast component for generating airflow, wherein the feeding component comprises a rotating shaft, a helical blade and a feeding pipe provided with a feeding end and a discharging end; the rotary shaft is of a tubular structure and is provided with a plurality of vent holes, the rotary shaft penetrates through the feeding pipe and is rotatably connected with the feeding pipe, and the spiral blades are arranged around the rotary shaft and are fixedly connected with the rotary shaft; one end of the rotating shaft is fixedly connected to an output shaft of the motor, and an air supply end of the air blowing assembly is communicated with the inside of the rotating shaft. This application has the effect of being convenient for clear up pay-off subassembly.

Description

Powder feeding device of concrete mixing plant
Technical Field
The application relates to the field of material transmission, in particular to a powder feeding device of a concrete mixing plant.
Background
Nowadays, when concrete mixing plants are used for producing concrete, screw conveyors are generally used as powder feeding devices to convey powder to the mixing plants. Screw conveyer utilizes the motor to drive the helical blade rotation in the feed cylinder and passes the material to realize the powder and carry the purpose, but when using, screw conveyer is difficult to adjust the outer tube angle according to the condition on scene.
In order to solve the above problems, the chinese utility model patent with application number CN201822029773.9 in the related art discloses a screw conveyor, the technical essential includes: the spiral conveyer comprises a spiral conveyer body, a swinging piece and an adjusting support, wherein one side of the bottom of the spiral conveyer body is fixed at the top of the swinging piece, and the other side of the spiral conveyer body is abutted against the adjusting support. The adjusting support is adjusted to enable the spiral conveyor body to rotate through the swinging piece, and therefore the effect of adjusting the angle of the spiral conveyor body is achieved.
When the powder feeding device is suspended for use, part of powder is easy to be adsorbed on the inner wall of the spiral conveyor body, if the powder is not cleaned in time, the powder adsorbed on the inner wall of the spiral conveyor body is gradually accumulated or agglomerated by a small amount of powder at first along with the increase of the use times of the powder feeding device, and the conveying efficiency of the powder feeding device is influenced.
In view of the above-mentioned related art, when the powder needs to be cleaned, the powder that is piled up is all located inside the screw conveyer body, so the powder feed arrangement has the defect that it is inconvenient to clean.
SUMMERY OF THE UTILITY MODEL
In order to improve the defect that powder feed arrangement is not convenient for to clear up, this application provides a concrete mixing plant powder feed arrangement.
The application provides a pair of concrete mixing plant powder feed arrangement adopts following technical scheme:
a powder feeding device of a concrete mixing plant comprises a feeding component, a motor and a blast component for generating air flow, wherein the feeding component comprises a rotating shaft, a helical blade and a feeding pipe provided with a feeding end and a discharging end; the rotary shaft is of a tubular structure and is provided with a plurality of vent holes, the rotary shaft penetrates through the feeding pipe and is rotatably connected with the feeding pipe, and the spiral blades are arranged around the rotary shaft and are fixedly connected with the rotary shaft; one end of the rotating shaft is fixedly connected to an output shaft of the motor, and an air supply end of the air blowing assembly is communicated with the inside of the rotating shaft.
Through adopting above-mentioned technical scheme, when needs clearance, the air current that the air blast subassembly produced can flow to the conveying pipe inside through rotation axis inside and ventilation hole for there is mobile air current in the conveying pipe, and the air current can wash conveying pipe inner wall, helical blade surface and other and the part of powder contact, makes adsorbed powder drop, and discharges from the conveying pipe, thereby can comparatively clear up the feeding subassembly conveniently relatively.
Optionally, a one-way exhaust valve is fixedly connected in the ventilation hole.
Through adopting above-mentioned technical scheme, one-way discharge valve's setting is in order to restrict the flow direction of ventilation hole department air current, and one-way discharge valve's the direction of opening is one side to the one side of rotation axis outer wall of rotation axis inner wall for the powder is difficult to flow into to the rotation axis in by the ventilation hole.
Optionally, the blowing assembly comprises a blower, a base and a blast pipe, the base is fixedly connected to the outer side of the feeding pipe, the blower is detachably mounted on the base, and two ends of the blast pipe are respectively communicated with the air supply end of the blower and the inside of the rotating shaft.
Through adopting above-mentioned technical scheme, the air-blower is fixed in the conveying pipe outside through the frame, and the air current that the air-blower produced is guided to the inside of rotation axis by the blast pipe.
Optionally, the conveying pipe outside is provided with the connector, the connector is tubulose and both ends opening, the both ends of connector are connected respectively in conveying pipe and blast pipe, the one end that the motor was kept away from to the rotation axis is opening setting and open end intercommunication in connector.
Through adopting above-mentioned technical scheme, the open end of rotation axis communicates in the connector, and the air supply end of air-blower passes through blast pipe and connector in order to realize indirect and the inside intercommunication of rotation axis for the rotation axis is when normal rotation, also is difficult for disturbing blast pipe and air-blower.
Optionally, the feeding pipe is embedded with a rotary sealing ring for sealing the rotary connecting part of the feeding pipe and the rotary shaft, and the rotary sealing ring is sleeved on the rotary shaft.
Through adopting above-mentioned technical scheme, rotary seal's setting is used for sealing the rotation connecting portion between rotation axis and the conveying pipe for the rotation connecting portion between rotation axis and the conveying pipe are difficult for having the powder to reveal.
Optionally, the feed end of the feed pipe is fixedly connected with a valve.
Through adopting above-mentioned technical scheme, the setting of valve can also be through closing the valve in order to seal the feed end in order to be used for controlling the powder that gets into in the feeder tube when the clearance for the powder is difficult to blow off from the feed end along with the air current.
Optionally, the side wall of the feeding pipe is provided with a residue discharge opening, the residue discharge opening is covered with a cover plate, the cover plate is hinged to the outer wall of the feeding pipe, and a plurality of fixing pieces used for detachably connecting the cover plate to the feeding pipe are arranged on the outer side of the feeding pipe.
Through adopting above-mentioned technical scheme, when the caking was too much piled up to the powder in the pay-off pipe, the apron was opened to the accessible for the powder can be discharged by arranging incomplete mouthful, thereby does further clearance to the powder of piling up the caking, with reinforcing clearance effect.
Optionally, the edge of the cover plate is provided with a plurality of fixing holes, the fixing member includes a fixing screw and a fixing nut, the fixing screw passes through the fixing hole and is fixedly connected with the feeding pipe, the fixing nut is in threaded connection with the fixing screw, and the edge of the orifice of the fixing hole is clamped between the fixing nut and the feeding pipe.
Through adopting above-mentioned technical scheme, the fixed orifices is seted up at the apron border, and the apron fits the clamping screw through the pore wall cover of fixed orifices, again by fixation nut threaded connection in clamping screw to realize that the apron can dismantle to be connected in the conveying pipe. When the cover plate is opened or closed, the cover plate can be conveniently sleeved and detached from the fixing screw rod through the hole wall of the fixing hole. After opening the cover plate, the cover plate can also be connected to the feeding pipe outside through the hinge part, and does not need to carry the cover plate.
Optionally, the feeding pipe sleeve is provided with at least one hoop for locking the cover plate.
Through adopting above-mentioned technical scheme, through the setting of staple bolt, the staple bolt can further lock the apron, reduces the load that fixation nut received to a certain extent for fixation nut is difficult not hard up, and the apron can closely cover more and close in arranging incomplete mouthful.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the air blowing assembly blows air flow into the feeding pipe, the air flow can wash the inner wall of the feeding pipe, the surface of the helical blade and other parts contacting with powder, so that the adsorbed powder falls off and is discharged from the feeding pipe, and the effect of facilitating cleaning of the feeding assembly is achieved.
2. When the powder is piled up and is agglomerated too much, the cover plate is opened to the accessible for the powder can be discharged by arranging incomplete mouthful, thereby further clearance is done to the powder of piling up the caking, with reinforcing clearance effect.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic view, partially in section, of an embodiment of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic diagram of an exploded view of the feed tube and cover plate of an embodiment of the present application;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
fig. 6 is a cross-sectional view taken along line C-C of fig. 2.
Description of reference numerals: 1. a feeding assembly; 11. a rotating shaft; 111. a vent hole; 112. a one-way exhaust valve; 12. A helical blade; 13. a feed pipe; 131. a feeding end; 132. a discharge end; 133. residue discharge; 14. a cover plate; 141. a fixing hole; 142. a protrusion; 15. a fixing member; 151. fixing the screw rod; 152. fixing a nut; 2. a motor; 3. a blower assembly; 31. a blower; 32. a machine base; 33. an air supply pipe; 4. a connector; 5. rotating the sealing ring; 6. a valve; 7. and (5) hooping.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses concrete mixing plant powder feed arrangement. Referring to fig. 1 and 2, the powder feeding device of the concrete mixing plant comprises a feeding assembly 1, a motor 2 and a blowing assembly 3.
The feeding assembly 1 comprises a rotating shaft 11, helical blades 12 and a feeding pipe 13, two ends of the feeding pipe 13 are of a closed structure, a feeding end 131 and a discharging end 132 are fixedly connected to the side wall of the feeding pipe 13, the feeding end 131 and the discharging end 132 are respectively located at two end positions close to the feeding pipe 13, the feeding end 131 and the discharging end 132 are both of a tubular structure, the feeding end 131 and the discharging end 132 are both communicated with the feeding pipe 13, and the opening directions of the feeding end 131 and the discharging end 132 far away from one end of the feeding pipe 13 are opposite. The rotating shaft 11, the helical blades 12 and the feeding pipe 13 are arranged on the same central axis.
The rotation axis 11 wears to locate feeding pipe 13 and both rotate and connect, and helical blade 12 encircles rotation axis 11 and sets up, and helical blade 12 fixed connection is in rotation axis 11 outer wall. The motor 2 and the blower assembly 3 are both fixedly connected to the feeding pipe 13, the motor 2 is preferably a speed reduction motor, and an output shaft of the motor 2 is fixedly connected to the rotating shaft 11 so as to drive the rotating shaft 11 to rotate.
Referring to fig. 3, the end of the rotating shaft 11, which is far away from the motor 2, is in an open structure, and the open end of the rotating shaft 11 is communicated with the air supply end of the air blowing assembly 3. The rotating shaft 11 is opened with a plurality of ventilation holes 111 for communicating the inside of the rotating shaft 11 with the inside of the feeding pipe 13, and the openings of the plurality of ventilation holes 111 face the surface of the helical blade 12 or the inner wall of the feeding pipe 13. A one-way exhaust valve 112 is fixedly connected to the inside of the vent hole 111, and the opening direction of the one-way exhaust valve 112 is from the inner wall side of the rotating shaft 11 to the outer wall side of the rotating shaft 11.
When needs clearance, operation air-blast subassembly 3 is in order to produce the air current, the air current is blown to rotation axis 11 inside by air-blast end of air-blast subassembly 3, the air current blows to in the conveying pipe 13 through the ventilation hole 111 of seting up again for have the air current of circulation in the conveying pipe 13, the air current can wash the part that conveying pipe 13 inner wall, helical blade 12 surface etc. contacted with the powder, make adsorbed powder drop, and discharge in the conveying pipe 13, in order to realize the effect of clearing up feeding subassembly 1 conveniently. The one-way exhaust valve 112 can effectively reduce the powder entering the rotating shaft 11 from the vent hole 111 during use and cleaning.
Referring to fig. 1 and 3, the blower assembly 3 includes a blower 31, a housing 32, and a blower pipe 33, the housing 32 is fixedly coupled to an outer side of the feeding pipe 13, the blower 31 is detachably mounted to the housing 32 by bolts, and the blower pipe 33 is used to communicate a blowing end of the blower 31 with an opening end of the rotary shaft 11.
The conveying pipe 13 outside is provided with connector 4, and connector 4 is tubulose and be both ends open structure, and the both ends of connector 4 are connected respectively in blast pipe 33 and conveying pipe 13 and are kept away from the one end of motor 2, and 11 open ends of rotation axis communicate inside connector 4. The blowing end of the blower 31 and the blowing duct 33 can indirectly communicate with the inside of the rotary shaft 11 through the coupling 4 so that the rotary shaft 11 does not interfere with the blowing duct 33 and the blower 31 when normally rotating.
The rotary sealing ring 5 is embedded in the rotary connecting portion between the rotary shaft 11 and the feeding pipe 13, the rotary sealing ring 5 is sleeved on the rotary shaft 11, and the rotary sealing ring 5 is used for sealing the rotary connecting portion between the rotary shaft 11 and the feeding pipe 13, so that the possibility that powder leaks from the rotary connecting portion between the rotary shaft 11 and the feeding pipe 13 is reduced.
The feeding end 131 is fixedly connected with a valve 6, and the valve 6 is used for controlling the speed of the powder entering the feeding pipe 13. When cleaning is needed, the valve 6 can be closed to close the feeding end 131, so that when the air blower 31 blows air into the feeding pipe 13, air flow is not easy to blow out from the feeding end 131 and part of powder is brought back.
Referring to fig. 4, the outer wall of the feeding pipe 13 facing the ground is provided with a discharge residue port 133, the discharge residue port 133 penetrates through the outer wall of the feeding pipe 13 facing the ground, the discharge residue port 133 is covered by a cover plate 14 on one side of the outer wall of the feeding pipe 13, and the cover plate 14 is in an arc-shaped plate-shaped structure.
Referring to fig. 4 and 5, one end edge of the cover plate 14 is hinged to the feeding pipe 13, the outer wall of the feeding pipe 13 is provided with a plurality of fixing pieces 15, and the fixing pieces 15 are used for detachably connecting the edge of the cover plate 14, which is not hinged to the feeding pipe 13, to the feeding pipe 13.
When the powder is piled up and caked too much, air blower 31 inputs the air current in to conveying pipe 13, opens apron 14 simultaneously for the powder can be discharged by arranging incomplete mouthful 133, thereby does further clearance to the powder of piling up the caking, with reinforcing clearance effect.
Referring to fig. 4 and 5, the edge of the cover plate 14, which is not hinged to the feeding pipe 13, is provided with a plurality of fixing holes 141, the fixing holes 141 are long holes or open structures, the fixing holes 141 extend along the circumferential direction of the feeding pipe 13, the fixing member 15 includes a fixing screw 151 and a fixing nut 152, the fixing screw 151 passes through the fixing holes 141 and is fixedly connected with the outer wall of the feeding pipe 13, the fixing nut 152 is in threaded connection with the fixing screw 151, and the orifice edge of the fixing hole 141 is clamped between the fixing nut 152 and the outer wall of the feeding pipe 13.
The outer wall cover of conveying pipe 13 is equipped with at least one staple bolt 7, and staple bolt 7 sets up to two in this embodiment, can set up to one, three or other quantity certainly, and staple bolt 7 sets up in the position that corresponds apron 14.
When carrying the powder, the powder is great to the load that apron 14 and fixation nut 152 applyed in the conveying pipe 13, easily makes the fixation nut 152 of fastening apron 14 not hard up, and through staple bolt 7's setting, staple bolt 7 can further lock apron 14, reduces the load that fixation nut 152 received to a certain extent for fixation nut 152 is difficult not hard up, and apron 14 can closely cover more and close in arranging incomplete mouthful 133.
Referring to fig. 6, a protrusion 142 is integrally formed on a side of the cover plate 14 facing the feeding pipe 13, and the protrusion 142 is tightly fitted to the residue discharge opening 133. The gap between the residue discharge opening 133 and the cover plate 14 is reduced by the arranged projection 142, so that powder remained in the gap between the residue discharge opening 133 and the cover plate 14 is reduced.
The implementation principle of the concrete mixing plant powder feeding device in the embodiment of the application is as follows: when cleaning is needed, the blower 31 is turned on to generate an air flow, the air flow is introduced into the rotating shaft 11 through the air supply pipe 33 and the connector 4, and the air flow is blown into the feeding pipe 13 through the vent hole 111 formed in the rotating shaft 11. The feeding pipe 13 is filled with flowing air flow, the air flow can continuously wash the inner wall of the feeding pipe 13, the surface of the spiral blade 12 and other parts contacting with powder, and the effect of conveniently cleaning the feeding assembly is achieved. The one-way exhaust valve 112 is fixedly connected in the vent hole 111, so that when air flow is blown to the feeding pipe 13 from the inside of the rotating shaft 11, powder in the feeding pipe 13 is not easy to enter the inside of the rotating shaft 11.
The valve 6 is closed to seal the feeding end 131, so that the powder is not easy to blow out from the feeding end 131 along with the air flow, the hoop 7 and the fixing piece 15 can be disassembled to open the cover plate 14, the powder in the feeding pipe 13 can be discharged from the residue discharge opening 133, and the cleaning effect of the feeding assembly 1 is enhanced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a concrete mixing plant powder feed arrangement, includes pay-off subassembly (1) and motor (2), its characterized in that: the device is characterized by also comprising a blowing component (3) for generating air flow, wherein the feeding component (1) comprises a rotating shaft (11), a spiral blade (12) and a feeding pipe (13) provided with a feeding end (131) and a discharging end (132); the rotary shaft (11) is of a tubular structure and is provided with a plurality of vent holes (111), the rotary shaft (11) penetrates through the feeding pipe (13) and is rotatably connected with the feeding pipe, and the spiral blades (12) are arranged around the rotary shaft (11) and are fixedly connected with the rotary shaft (11); one end of the rotating shaft (11) is fixedly connected to an output shaft of the motor (2), and an air supply end of the air blowing assembly (3) is communicated with the inside of the rotating shaft (11).
2. The powder feeding device of the concrete mixing plant according to claim 1, characterized in that: and a one-way exhaust valve (112) is fixedly connected in the vent hole (111).
3. The powder feeding device of the concrete mixing plant according to claim 1, characterized in that: the blowing component (3) comprises a blower (31), a base (32) and a blowing pipe (33), the base (32) is fixedly connected to the outer side of the feeding pipe (13), the blower (31) is detachably mounted on the base (32), and two ends of the blowing pipe (33) are respectively communicated with the blowing end of the blower (31) and the inside of the rotating shaft (11).
4. The powder feeding device of the concrete mixing plant according to claim 3, characterized in that: the utility model discloses a motor, including conveying pipe (13), connector (4), connecting head (4) are tubulose and both ends opening, the both ends of connector (4) are connected respectively in conveying pipe (13) and blast pipe (33), the one end that motor (2) were kept away from in rotation axis (11) is opening setting and open end and communicates in connector (4).
5. The powder feeding device of the concrete mixing plant according to claim 1, characterized in that: the feeding pipe (13) is embedded with a rotary sealing ring (5) used for sealing a rotary connecting part between the feeding pipe and the rotating shaft (11), and the rotating shaft (11) is sleeved with the rotary sealing ring (5).
6. The powder feeding device of the concrete mixing plant according to claim 1, characterized in that: and the feeding end (131) of the feeding pipe (13) is fixedly connected with a valve (6).
7. The powder feeding device of the concrete mixing plant according to claim 1, characterized in that: the side wall of the feeding pipe (13) is provided with a residual discharge opening (133), a cover plate (14) is covered on the residual discharge opening (133), the cover plate (14) is hinged to the outer wall of the feeding pipe (13), and a plurality of fixing pieces (15) used for detachably connecting the cover plate (14) to the feeding pipe (13) are arranged on the outer side of the feeding pipe (13).
8. The powder feeding device of the concrete mixing plant according to claim 7, characterized in that: the fixing device is characterized in that a plurality of fixing holes (141) are formed in the edge of the cover plate (14), the fixing piece (15) comprises a fixing screw rod (151) and a fixing nut (152), the fixing screw rod (151) penetrates through the fixing holes (141) and is fixedly connected with the feeding pipe (13), the fixing nut (152) is in threaded connection with the fixing screw rod (151), and the edge of an orifice of the fixing hole (141) is clamped between the fixing nut (152) and the feeding pipe (13).
9. The powder feeding device of the concrete mixing plant according to claim 8, characterized in that: the feeding pipe (13) is sleeved with at least one hoop (7) for locking the cover plate (14).
CN202120828197.3U 2021-04-21 2021-04-21 Powder feeding device of concrete mixing plant Active CN214925826U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120828197.3U CN214925826U (en) 2021-04-21 2021-04-21 Powder feeding device of concrete mixing plant

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Application Number Priority Date Filing Date Title
CN202120828197.3U CN214925826U (en) 2021-04-21 2021-04-21 Powder feeding device of concrete mixing plant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290528A (en) * 2021-12-27 2022-04-08 扬州华运新材料科技有限公司 Energy-conserving for ready-mixed concrete batching mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290528A (en) * 2021-12-27 2022-04-08 扬州华运新材料科技有限公司 Energy-conserving for ready-mixed concrete batching mechanism
CN114290528B (en) * 2021-12-27 2024-02-06 扬州华运新材料科技有限公司 Energy-saving batching mechanism for ready-mixed concrete

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