CN110815579A - Treatment device and construction method for material return of lifting conveying belt of concrete mixing plant - Google Patents
Treatment device and construction method for material return of lifting conveying belt of concrete mixing plant Download PDFInfo
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- CN110815579A CN110815579A CN201911324056.1A CN201911324056A CN110815579A CN 110815579 A CN110815579 A CN 110815579A CN 201911324056 A CN201911324056 A CN 201911324056A CN 110815579 A CN110815579 A CN 110815579A
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- chute
- belt
- conveying belt
- vibration
- conveying
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- 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
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/068—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors having means to elevate or hoist a charging-bin or container
Abstract
The invention discloses a processing device and a construction method for lifting returned materials of a conveying belt of a concrete mixing plant, comprising a vibration device arranged on the inner surface of the top end of the lower traveling section of the conveying belt, wherein the vibration device comprises a vibration roller, the vibration roller is connected with the bottom end of a vibrator through a vibration frame, and the side surface of the vibration frame is connected with a beam frame of the conveying belt; the top of the vibration frame is provided with a connecting piece, and the connecting piece is connected with the conveying belt beam frame through a vibration spring; the inclined chute is divided into three parts, namely a chute upper part, a chute middle part and a chute lower part, the inclination of the chute upper part is consistent with that of the conveying belt, and the width of the chute upper part is larger than that of the conveying belt; the width of the middle part of the chute is gradually reduced along the descending direction, and the inclination is smaller than the inclination of the conveying belt; the invention can effectively reduce the material returning phenomenon when the concrete aggregate is transported on the conveyor belt, prevent the quality of the concrete from not reaching the standard caused by the proportioning change of the concrete aggregate, and ensure the construction quality and effect.
Description
Technical Field
The invention relates to the field of construction devices of concrete mixing plants, in particular to a treatment device and a construction method for material returning of a lifting conveying belt of a concrete mixing plant.
Background
Conveyer belt wide application is carried to concrete mixing plant aggregate, for avoiding the aggregate to slide down when promoting the transport because of the dead weight effect, concrete mixing plant promotes conveyer belt and uses shirt rim baffle conveyer belt widely, the aggregate all has certain moisture content, when the moisture content is higher, sand and littlestone in the aggregate easily adhere to the conveyer belt, the transport face and the baffle of shirt rim baffle conveyer belt are not in same plane, the material of adhesion is clear away from to the flitch is scraped in unable installation, the baffle conveyer belt promotes the material and goes upward to the top of conveyer belt and unloads, the powder of part adhesion does not break away from the conveyer belt when unloading, along with the conveyer belt downstream downward movement of underslung, be called the returning charge. Under the action of gravity, part of returned materials fall along the conveying belt in the descending process, the rest of returned materials descend to the lower roller of the conveying belt along the conveying belt and are thrown off under the action of the rotating centrifugal force of the lower conveying roller, and the returned materials can cause raw material pollution waste and influence on environmental sanitation; the workload of cleaning returned materials is large, and when the returned materials are seriously returned, the returned materials are accumulated to block the lower roller of the conveyer belt, so that the conveyer belt is locked and even damaged; the actual proportion of the concrete is changed because the returned materials in the aggregate do not enter the mixing process, and the quality of the concrete is influenced.
Therefore, a construction device capable of effectively reducing the material returning phenomenon during the operation of the concrete mixing plant is needed.
Disclosure of Invention
A processing device for lifting returned materials of a conveying belt of a concrete mixing station comprises a vibration device arranged on the inner surface of the top end of the lower traveling section of the conveying belt, wherein the vibration device comprises a vibration roller which is abutted against the inner surface of the conveying belt, the vibration roller is connected with the bottom end of a vibrator through a vibration frame, and the side surface of the vibration frame is also connected with a beam frame of the conveying belt through a connecting piece; the top of the vibration frame is provided with a vibrator, and the vibrator is connected with the conveying belt beam frame through a vibration spring; the chute is arranged right below the vibrating device and is opposite to the lower surface of the top of the downstream section of the conveying belt; the chute is divided into three parts, namely a chute upper part, a chute middle part and a chute lower part, wherein the inclination of the chute upper part is consistent with the inclination of the conveying belt, and the width of the chute upper part is larger than the width of the conveying belt; the width of the middle part of the chute is gradually reduced along the descending direction, and the inclination is smaller than the inclination of the conveying belt.
Particularly, the lower part of the chute is turned to be aligned with the ascending section of the conveying belt, and the whole chute is of a semi-spiral structure which bypasses the conveying belt from the lower part of the conveying belt to the upper part of the conveying belt.
Particularly, a chute vibrator is further arranged on the chute.
Particularly, a baffle is arranged at the end part of the lower part of the chute, and a conveying baffle is arranged above the conveying belt.
In particular, the conveyer belt is provided with a transfer hopper, and the lower part of the chute guides the return materials into the transfer hopper.
Particularly, the tail end of the chute is opposite to the upper-stage conveyor.
A construction method of a treatment device for lifting returned materials of a conveying belt of a concrete mixing plant comprises the following steps:
and 4, continuously carrying out no-load after one part of aggregate is lifted by using the device, and disconnecting a power supply and cleaning the bottom of the lower roller of the conveying belt until all the aggregates are conveyed away from the conveying device through the conveying belt.
In particular, the included angle between the baffle and the chute in the step 2 is less than 90 degrees.
The invention has the beneficial effects that: the material returning phenomenon that can effectively reduce concrete aggregate and appear when the conveyer belt transports reduces raw materials and pollutes, extravagant, prevents that the concrete quality that concrete aggregate ratio that causes that the phenomenon arouses because the conveyer belt material returning is changed and is not up to standard, ensures construction quality and effect.
Drawings
Fig. 1 is a schematic structural diagram of a conveyor belt vibration device.
Fig. 2 is a front view of the apparatus of the present invention.
Fig. 3 is a right side view of the device of the present invention.
FIG. 4 is a front view of the belt transfer hopper structure.
FIG. 5 is a right side view of the belt transfer hopper structure.
Fig. 6 is a front view of the upper belt structure.
Fig. 7 is a right side view of the upper belt structure.
Wherein, the lower roller-1 of the conveyer belt; a conveying baffle-2; a conveyor-21; a conveyor belt up section-201; a conveyor run-down section-202; an upper roller-3 of the conveyer belt; a vibrating device-4; a vibrating roller-401; a vibrating frame-402; a vibrator-403; a connector-404; a spring-405; a chute-5; a chute upper part-501; a mid-chute-502; a chute lower part-503; a chute vibrator-6; a transfer hopper-7; an upper-level conveyer belt-8.
Detailed Description
The device of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, a processing device for lifting the returning charge of the conveyer belt at a concrete mixing plant comprises a vibration device 4 arranged on the inner surface of the top end of the lower section 202 of the conveyer belt, wherein the vibration device 4 comprises a vibration roller 401 abutting against the inner surface of the conveyer belt 21, the vibration roller 401 is connected with the bottom end of a vibrator 403 through a vibration frame 402, and the side surface of the vibration frame 402 is further connected with a conveyer belt beam frame through a connecting piece 404; the top of the vibration frame 402 is provided with a vibrator 403, and the vibrator 403 is connected with a conveyer belt beam frame through a vibration spring 405; the device further comprises an inclined chute 5 arranged right below the vibrating device 4, and the chute 5 is right opposite to the lower surface of the top end of the lower traveling section 202 of the conveying belt; the chute 5 is divided into three parts, namely a chute upper part 501, a chute middle part 502 and a chute lower part 503, wherein the inclination of the chute upper part 501 is consistent with that of the conveying belt 21, and the width of the chute upper part is larger than that of the conveying belt 21; the width of the chute middle part 502 is gradually reduced along the descending direction and the inclination is smaller than the inclination of the conveying belt 21, and the chute middle part is used as the basic structure of the device.
As a preferred embodiment, the chute lower portion 503 is turned to align with the belt upper run 201; the whole chute 5 is of a semi-spiral structure which is arranged from the lower part of the conveyer belt 21 to the upper part of the conveyer belt 21 and bypasses the conveyer belt 21, the semi-spiral structure serves as a basic structure of the device, returned materials falling off from the conveyer belt 21 under vibration are collected by the upper part 501 of the chute, the returned materials are returned to an aggregate conveying path by the middle part 502 of the chute and the lower part 503 of the chute, the upper part 501 of the chute is close to the upper half part of the lower section 202 of the conveyer belt, the inclined direction of the upper part of the chute is consistent with the inclined direction of the conveyer belt 21 of the lower section and is slightly wider; the chute middle part 502 reduces the gradual width and bends towards the side of the conveying belt 21 and continues to keep a certain gradient to descend, returned materials are led to the side of the conveying belt 21 and continue to slide downwards, the chute lower part 503 continues to keep a certain gradient and leads the returned materials to a material conveying path, and the material conveying path can be a transfer hopper 7 at the lower end of the conveying belt 21 or an upper-stage conveying belt 8 or continues to bend around the conveying belt 21 to lead the returned materials to the front of the lifting conveying belt 21. Each part of the chute 5 can be manufactured in a segmented mode, and can also be manufactured into a smooth and excessive integral semi-spiral structure, because the inclination of the chute 5 is smaller than the inclination of the conveying belt 21, after the chute middle part 502 is extended for a certain distance, the integral height of the chute lower part 503 is higher than the height of the conveying belt 21, namely, the whole chute 5 rotates for a half circle around the conveying belt 21 from top to bottom, and gradually descends to the position right above the lower part of the conveying belt 21 from the position right below the upper part of the conveying.
As a preferred embodiment, a chute vibrator 6 is further arranged on the chute 5; when chute middle part 502 and the slope of chute lower part 503 are not enough, can appear returning charge and take place to pile up in chute 5 after dropping to chute 5, influence the returning charge treatment effect of whole device, can add in chute upper portion 501 or chute middle part 502 department this moment and establish chute vibrator 6, thereby drive the purpose that the gliding of returning charge was played in the vibration of chute 5 through chute vibrator 6.
As a preferred embodiment, a baffle is installed at the end of the chute lower part 503, and a conveying baffle 2 is arranged above the conveying belt 21; when the conveyer belt 21 is lifted to run, the ascending section 201 of the conveyer belt 21 upwards advances from the lower conveyer belt roller 1 to the upper conveyer belt roller 3, the lower conveyer belt descending section 202 downwards advances from the upper conveyer belt roller 3 to the lower conveyer belt roller 1, the vibration device 4 synchronously vibrates along with the running of the conveyer belt 21, the material is conveyed to the conveyer belt 21 to be lifted, the material is discharged after reaching the upper conveyer belt roller 3, the returned material adhered to the conveyer belt 21 continuously moves downwards along the lower conveyer belt descending section 202, when reaching the vicinity of the vibration device 4, the returned material is separated from the conveyer belt 21 and falls into the upper chute part 501 under the vibration action force, the returned material slides downwards along the chute 5 to the lower side of the lower conveyer belt descending section 202 under the action of gravity, and continuously slides downwards along the narrower chute middle part 502 and the chute lower part 503 to the upper side of the ascending section 201 of the conveyer belt, then the returned material continuously slides downwards along the chute lower part 503 to the middle, the returned material is lifted again by the conveyor belt 21. When the slope of the chute 5 is not enough to cause the returned material to slide downwards under the dead weight, a chute vibrator 6 can be arranged on the chute 5; when the slope of chute 5 is too big, can be at 5 lower extremes of chute installation baffles, prevent that returning charge speed is too fast to rush out conveyer belt up-going section 201 under the inertial action, still can install the baffle at 5 sharp bends of chute, prevent that returning charge speed is too fast to rush out chute 5 under the inertial action.
As a preferred embodiment, the conveyor belt 21 is provided with a transfer hopper 7, the chute lower part 503 guides the return materials into the transfer hopper 7, the return materials of the chute 5 are not directly guided to the conveyor belt upper section 201 any more, but directly enter the transfer hopper 7, and the return materials enter the conveyor belt upper section 201 from the transfer hopper 7 to be lifted again, so that the number of turns of the chute 5 is reduced, and the manufacturing difficulty is reduced.
As a preferred embodiment, the end of the chute 5 faces the upper conveyor belt 8; the lifting conveying belt 21 is provided with a higher-level conveyor 8, the chute 5 is directly guided into the higher-level conveyor 8, next lifting is carried out from the higher-level conveyor 8, the number of turns of the chute 5 can be reduced according to local conditions, and the manufacturing difficulty is reduced.
A construction method of a treatment device for lifting returned materials of a conveying belt of a concrete mixing plant comprises the following steps:
and 4, continuously carrying out no-load after one part of aggregate is lifted by using the device, and disconnecting the power supply and cleaning the bottom of the lower roller 1 of the conveying belt until all the aggregates are conveyed away from the conveying device through the conveying belt 21.
As a preferred embodiment, the included angle between the baffle plate and the chute 5 in step 2 is smaller than 90 °, so that when the returned material collides with the baffle plate in the chute 5 due to the large gradient of the chute 5, the baffle plate can well play a role of a guardrail to prevent the returned material from rushing out of the chute 5.
When the conveyer belt 21 runs, the vibrating roller 401 of the vibrating device 4 is contacted with the inner side surface of the upper end of the conveyer belt 21, the roller rotates under the running action of the conveyer belt 21, in order to avoid the damage to the conveyer belt 21 caused by the direct friction between the vibrator 403 and the conveyer belt 21, the vibrator 403 transmits vibration to the conveyer belt 21 through the vibrating roller 401, so that returned materials are forced to be separated at the upper end of the lower running section 202 of the conveyer belt and fall into the chute 5, the returned materials are prevented from falling along the lower running section 202 of the whole conveyer belt, and the returned materials adhered to the conveyer belt 21 are also prevented; the returned materials slide downwards to the side face of the conveying belt 21 along the chute 5, continue to slide into the transfer hopper 7 or the upper-level conveying belt 8 along the chute 5 under the action of gravity and the chute vibrator 6, or slide downwards and rotate to the upper surface of the bottom end of the ascending section 201 of the conveying belt, and enter an aggregate conveying path at the transfer hopper 7, the upper-level conveying belt 8 or the ascending section 201 of the conveying belt to be lifted again. When the chute 5 is low in gradient, a chute vibrator 6 can be additionally arranged on the chute 5 so as to accelerate falling return materials to slide downwards in the chute 5.
Claims (8)
1. The processing device for the material returning of the lifting conveying belt of the concrete mixing station is characterized by comprising a vibration device (4) arranged on the inner surface of the top end of a lower traveling section (202) of the conveying belt, wherein the vibration device (4) comprises a vibration roller (401) abutted against the inner surface of the conveying belt (21), the vibration roller (401) is connected with the bottom end of a vibrator (403) through a vibration frame (402), and the side surface of the vibration frame (402) is further connected with a beam frame of the conveying belt through a connecting piece (404); the top of the vibration frame (402) is provided with a vibrator (403), and the vibrator (403) is connected with a conveying belt beam frame through a vibration spring (405); the device also comprises an inclined chute (5) arranged right below the vibration device (4), wherein the chute (5) is over against the lower surface of the top end of the downstream section (202) of the conveying belt; the chute (5) is divided into an upper chute part (501), a middle chute part (502) and a lower chute part (503), the inclination of the upper chute part (501) is consistent with that of the conveying belt (21), and the width of the upper chute part is larger than that of the conveying belt (21); the width of the chute middle part (502) is gradually reduced along the descending direction, and the inclination is smaller than that of the conveying belt (21).
2. A handling device for the return material of a lifting belt of a concrete mixing plant according to claim 1, characterized in that the lower chute part (503) turns into alignment with the upper run (201) of the belt, and the whole chute (5) has a semi-spiral structure passing around the belt (21) from below the belt (21) to above the belt (21).
3. A handling device for the return material of the lifting belt of a concrete mixing plant according to claim 1, characterized in that the chute (5) is further provided with a chute vibrator (6).
4. The device for processing the returned material of the lifting conveyer belt of the concrete mixing plant as recited in claim 1, characterized in that a baffle is arranged at the end part of the lower part (503) of the chute, and a conveying baffle (2) is arranged above the conveyer belt (21).
5. A handling device for the return material of a lifting belt of a concrete mixing plant according to claim 1, characterized in that said belt (21) is provided with a transfer hopper (7) and said chute lower portion (503) guides the return material into the transfer hopper (7).
6. A handling device for the return of a lifting belt of a concrete mixing plant according to claim 1, characterised in that the end of said chute (5) is opposite to the conveyor belt (8) of the previous stage.
7. A construction method of a treatment device for lifting returned materials of a conveying belt of a concrete mixing plant is characterized by comprising the following steps:
step 1, erecting a lifting conveyor belt (21) at a construction position, and determining the inclination of the conveyor belt (21) according to the height difference and the length of the conveyor belt (21);
step 2, installing a vibration device (4), manufacturing and erecting a chute (5), installing a chute vibrator (6), erecting a transfer hopper (7) at the tail end of the chute when the inclination of a conveying belt (21) is more than 60 degrees, and additionally arranging a baffle; when the conveying belt (21) is less than 60 degrees, the returned materials are directly guided to the upper conveying belt (8);
step 3, after the device is erected, switching on a power supply, pre-running for 3 minutes, and adding a test sample to the bottom of the upper section (201) of the conveyor belt during the pre-running period to ensure that the lifting device runs without errors; continuing to switch on the power supply until the test sample leaves the conveying device through the conveying belt (21);
and 4, continuously carrying out no-load after one part of aggregate is lifted by using the device, and disconnecting the power supply and cleaning the bottom of the lower roller (1) of the conveying belt until all the aggregates are conveyed away from the conveying device through the conveying belt (21).
8. The method for constructing a device for handling returned material from a lifting belt of a concrete mixing plant according to claim 7, characterized in that the angle between the baffle plate and the chute (5) in step 2 is less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324056.1A CN110815579A (en) | 2019-12-20 | 2019-12-20 | Treatment device and construction method for material return of lifting conveying belt of concrete mixing plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911324056.1A CN110815579A (en) | 2019-12-20 | 2019-12-20 | Treatment device and construction method for material return of lifting conveying belt of concrete mixing plant |
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| CN110815579A true CN110815579A (en) | 2020-02-21 |
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| CN201911324056.1A Pending CN110815579A (en) | 2019-12-20 | 2019-12-20 | Treatment device and construction method for material return of lifting conveying belt of concrete mixing plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733333A (en) * | 2021-08-13 | 2021-12-03 | 叶德娟 | Concrete production line |
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2019
- 2019-12-20 CN CN201911324056.1A patent/CN110815579A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733333A (en) * | 2021-08-13 | 2021-12-03 | 叶德娟 | Concrete production line |
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