CN214365016U - Tertiary buffering vibration feeder suitable for roller compacted concrete - Google Patents
Tertiary buffering vibration feeder suitable for roller compacted concrete Download PDFInfo
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- CN214365016U CN214365016U CN202023338774.5U CN202023338774U CN214365016U CN 214365016 U CN214365016 U CN 214365016U CN 202023338774 U CN202023338774 U CN 202023338774U CN 214365016 U CN214365016 U CN 214365016U
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Abstract
The utility model relates to a civil engineering technical field, concretely relates to tertiary buffering vibratory feeding device suitable for roller compacted concrete. The buffer device is arranged in the hopper and is arranged from bottom to top, the buffer device comprises a primary buffer device, a secondary buffer device and a tertiary buffer device, the primary buffer device, the secondary buffer device and the tertiary buffer device are sequentially arranged in the hopper from bottom to top, the primary buffer device is a cross rod, the secondary buffer device is two cross rods arranged at intervals, the tertiary buffer device is two cross rods arranged at intervals, and all the cross rods of the primary buffer device, the secondary buffer device and the tertiary buffer device are arranged in parallel; the utility model provides the high conveying efficiency of tipper for the construction progress has practiced thrift construction cost.
Description
Technical Field
The utility model relates to a civil engineering technical field, concretely relates to tertiary buffering vibratory feeding device suitable for roller compacted concrete.
Background
The devices for feeding the roller compacted concrete to the distributing machine or the belt conveyor system at home and abroad are as follows: the belt feeder is from switching hopper, arc hydraulic pressure door, vibrating feeder etc. of taking, its key feature as follows:
the belt feeder is from switching hopper in area: hopper capacity of about 6m3When concrete is poured, concrete in a dump truck or other transportation equipment is unloaded into the hopper, and in the process, the roller compacted concrete is conveyed into the self-carrying hopper through secondary reverse conveying by generally adopting hoisting equipment (a tower crane, a cable car, a crane and the like) and then conveyed into a bin number through the distributing machine. Due to the fact that feeding is not continuous in the pouring process, the warehousing strength of the concrete cannot meet the construction requirement.
The working principle is as follows: the transfer hopper of belt feeder self-carrying is connected with the cloth machine, and the hopper is directly placed subaerial, is connected the hopper part with the belt transmission system of cloth machine self-carrying, and after concrete fortune to the scene, adopt hoisting equipment earlier and unload the concrete to the hopper in through the secondary transportation of falling, the concrete in the hopper passes through belt transmission to the cloth machine, carries the concrete to the storehouse number in through the cloth machine at last.
The disadvantages are as follows: the feeding is discontinuous, and the position of the hopper needs to be adjusted before each pouring. The strength of the concrete is about 160-210m3/h。
Arc hydraulic pressure door: the arc hydraulic pressure door utilizes the hydraulic system who self carries to provide the power supply, controls through manual switching-over valve and realizes opening and closing of hydraulic pressure door to make roller compacted concrete can carry on the distributing machine or belt feeder uniformly. The system lacks an effective means to directly transport the roller compacted concrete into the arc hydraulic door, and hoisting equipment (a tower crane, a cable car, a truck crane and the like) is generally adopted to transport the roller compacted concrete into the hydraulic arc door on site, so that the pouring strength of the roller compacted concrete is influenced.
The working principle is as follows: the arc hydraulic pressure door is connected with belt feeder or cloth machine, and the arc hydraulic pressure door is directly placed subaerial, is connected hopper arc hydraulic pressure door part with the belt transmission system of cloth machine or belt feeder area certainly, carries through the concrete in the manual valve control arc hydraulic pressure door. After the concrete is transported to the site, the concrete is unloaded into the arc hydraulic door by the hoisting equipment through secondary transportation, the concrete in the arc hydraulic door is transmitted to the distributing machine or the belt conveyor through the belt, and finally the concrete is conveyed into the bin number through the distributing machine or the belt conveyor.
The system has the following characteristics: the actuator drives the hydraulic arc door to open and close by controlling the manual reversing valve, and the hydraulic arc door has few system elements and simple and practical structure. But the automation degree is lower at the same time, and the uniformity, the continuity and the rapidity of the blanking are restricted.
The disadvantages are as follows: the feed is discontinuous, and the position of hopper and valve need adopt the manual control valve all need be adjusted before pouring at every turn, influences the continuity that the concrete was put into storage. The strength of the concrete is about 150-200m3/h。
A vibrating feeder: the vibration feeder is also called vibration feeder, and is a device capable of uniformly, regularly and continuously feeding block-shaped and granular materials from a storage bin to a receiving device.
The working principle is as follows: the vibrating feeder consists of a vibrating frame, a vibrating body, a vibrating motor, a vibration exciter, a spring (the spring is divided into an exciting spring and a supporting spring) and the like. Before construction, the vibrating feeder is connected with the belt conveyor or the distributing machine, concrete is conveyed to the vibrating feeder through the conveying device and the hoisting device, and the concrete is conveyed to the belt conveyor or the distributing machine through the vibrating feeder and conveyed to the bin number.
The equipment is feeding equipment with advanced economic and technical indexes, stable vibration, reliable work, higher equipment cost and difficult damage maintenance.
The disadvantages are as follows: the feeding is discontinuous, the position of the vibrating feeder needs to be adjusted before each pouring, and the concrete conveying strength is about 150-200m3/h。
Disclosure of Invention
For solving the problem of the prior art, the utility model provides a tertiary buffering vibratory feeding device suitable for roller compacted concrete.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a three-level buffering vibration feeding device suitable for roller compacted concrete comprises a hopper, a buffering device and a vibrator, wherein the buffering device is arranged in the hopper, the buffering device is arranged from bottom to top and comprises a first-level buffering device, a second-level buffering device and a three-level buffering device, the first-level buffering device, the second-level buffering device and the three-level buffering device are sequentially arranged in the hopper from bottom to top, the first-level buffering device is a transverse rod, the second-level buffering device is two transverse rods arranged at intervals, the three-level buffering device is two transverse rods arranged at intervals, and all the transverse rods of the first-level buffering device, the second-level buffering device and the three-level buffering device are arranged in parallel; the vibrator is fixedly arranged on the outer wall of the hopper; the area of a feed port at the upper part of the hopper is larger than that of a discharge port at the lower part of the hopper; the first-stage buffer device is arranged at the center of the discharge hole, the second-stage buffer device is arranged at one third of the position of the hopper from bottom to top, and the third-stage buffer device is arranged at two thirds of the position of the hopper from bottom to top; the cross rods of the first-level buffer device, the second-level buffer device and the third-level buffer device are all parallel to the short edges of the feeding hole.
Preferably, the vibrator is arranged at one third position below and above the hopper, and the vibrator is positioned at the middle position of two short sides of the hopper.
Preferably, the feed inlet and the discharge outlet of the hopper are both rectangular, the feed inlet is 3.5 meters long and 2.5 meters wide, the discharge outlet is 1.5 meters long and 0.7 meters wide, and the volume of a single hopper 1 is more than 8m3。
Preferably, the two cross bars of the secondary buffer device trisect the cross section of the hopper at the height of the two cross bars.
Preferably, the cross bars of the first-stage buffer device, the second-stage buffer device and the third-stage buffer device are all of angle steel structures, and the specification of the angle steel is 150mm multiplied by 10 mm.
Preferably, the vibrator is two attached flat plate vibrators which are symmetrically arranged.
Preferably, the three-level buffering vibration feeding device suitable for roller compacted concrete further comprises a belt transmission system arranged on the lower portion of the discharge port, and the belt transmission system selects a belt conveyor.
Preferably, the three-level buffering vibration feeding device suitable for roller compacted concrete further comprises a discharge port extending part arranged at the lower part of the discharge port, the discharge port extending part vertically extends downwards from the periphery of the discharge port at the lower part of the hopper, and the length of the discharge port extending part is 0.3-0.5 m.
Preferably, a pair of inward inclined baffles is fixedly arranged on two long sides of the discharge port extension part, and the length of each baffle is 0.15-0.25 m.
Compared with the prior art, the beneficial effects of utility model are that: by adopting the three-level buffering vibration feeding device of the utility model, the material can be continuously and uniformly fed to the material distributor or the belt conveyor during the roller compacted concrete construction period, the warehousing strength of the roller compacted concrete can be ensured, the transport efficiency of the dump truck is improved, the construction progress is accelerated, and the construction cost is saved; the three-level buffering vibration feeding device can achieve the technical effects in the aspects, is simple in structure and easy to manufacture, and can be self-made on a construction site.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a schematic top view of the present invention.
FIG. 2 is a schematic sectional view A-A of FIG. 1.
FIG. 3 is a schematic sectional view of B-B in FIG. 1.
In the drawings, the names corresponding to the reference numbers are: the device comprises a hopper 1, a feeding hole 101, a discharging hole 102, a buffering device 2, a primary buffering device 21, a secondary buffering device 22, a tertiary buffering device 23, a vibrator 3, a belt conveying system 4, a discharging hole extending part 5 and a baffle 51.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are provided only for illustrating the present invention and do not limit the scope of the present invention.
Please refer to fig. 1-3, which illustrate a three-level buffering vibratory feeding device suitable for roller compacted concrete, comprising a hopper 1, a buffering device 2 and a vibrator 3, wherein the buffering device 2 is arranged in the hopper 1, and the buffering device 2 is arranged from bottom to top, the buffering device 2 comprises a first-level buffering device 21, a second-level buffering device 22 and a third-level buffering device 23, the first-level buffering device 21, the second-level buffering device 22 and the third-level buffering device 23 are sequentially arranged in the hopper 1 from bottom to top, the first-level buffering device 21 is a cross bar, the second-level buffering device 22 is two cross bars arranged at intervals, the third-level buffering device 23 is two cross bars arranged at intervals, and all the cross bars of the first-level buffering device 21, the second-level buffering device 22 and the third-level buffering device 23 are arranged in parallel; the vibrator 3 is fixedly arranged on the outer wall of the hopper 1.
The vibrator 3 is arranged at the position of one third of the hopper 1 from bottom to top, and the vibrator 3 is positioned at the middle position of two short sides of the hopper 1;
the utility model provides a tertiary buffering vibratory feeding device for roller compacted concrete, the following structure of preferred adoption sets up the mode: the area of a feed port 101 at the upper part of the hopper 1 is larger than that of a discharge port 102 at the lower part;
preferably, the primary buffer device 21 is disposed at the center of the discharge hole 102, the secondary buffer device 22 is disposed at the one-third position of the hopper 1 from bottom to top, and the tertiary buffer device 23 is disposed at the two-third position of the hopper 1 from bottom to top.
The feed inlet 10 of the hopper 11 and the discharge port 102 are both rectangular, the length of the feed port 101 is 3.5 meters, the width of the feed port is 2.5 meters, the length of the discharge port 102 is 1.5 meters, the width of the discharge port is 0.7 meter, and the volume of a single hopper 1 is more than 8m3. The cross bars of the first-stage buffer device 21, the second-stage buffer device 22 and the third-stage buffer device 23 are all parallel to the short side of the feed port 101.
The two cross bars of the secondary buffer device 22 trisect the cross section of the hopper 1 with the height thereof;
as shown in fig. 1 and 3, the projection of the longitudinal section of the hopper 1 parallel to the long sides of the feed inlet 101 and the discharge outlet 102 is an inverted trapezoid, and the ratio of the upper bottom to the lower bottom to the height of the inverted trapezoid is 30-40: 12-18: 20, specifically, the upper bottom of the inverted trapezoid is 3.5 meters, the lower bottom is 1.5 meters, and the height is 2 meters.
The hopper 1 is made of a steel plate with the thickness of 10 mm.
The cross bars of the first-stage buffer device 21, the second-stage buffer device 22 and the third-stage buffer device 23 are all of angle steel structures, and the specifications of the angle steel are 150mm multiplied by 10 mm.
The vibrator 3 is two attached flat vibrator, and the two attached flat vibrator are symmetrically arranged.
The utility model provides a tertiary buffering vibratory feeding device for roller compacted concrete still include with the support post (in the figure) that the hopper is connected is used for supporting the hopper. The specific supporting upright post (not shown) adopts I-shaped steel or channel steel with larger model. If the supporting upright post is formed by machining 28# I-steel or channel steel, the requirement on supporting strength is met.
The utility model provides a tertiary buffering vibration feed device for roller compacted concrete can also be in including setting up belt transmission system 4, belt conveyor 4 chooseed for use of discharge gate 102 lower part.
The utility model provides a tertiary buffering vibratory feeding device for roller compacted concrete can also be including setting up discharge gate extension 5 in discharge gate 102 lower part, discharge gate extension 5 from the downward vertical extension all around of discharge gate 102 of 1 lower part of hopper, and the length of discharge gate extension 5 is 0.3-0.5 meter, and this numerical range is preferred numerical range, discharge gate extension 5 retrains on the concrete that flows from discharge gate 102 can all fall into the conveyor belt of belt transmission system 4.
As shown in FIG. 3, a pair of inward inclined baffles 51 are fixedly arranged on two long sides of the preferred discharge outlet extension part 5, the included angle between the baffle 51 and the discharge outlet extension part 5 on the same side is 120-150 degrees, and the length of the baffle 51 is 0.15-0.25 meter. The preferred length of the baffle 51 is 0.2 meters.
The supporting upright post of the three-stage buffering vibration feeding device is formed by processing 28# I-steel or channel steel, the hopper 1 is made of a steel plate with the thickness of 10mm, and the cross bar of the three-stage buffering vibration feeding device is made of angle steel. Considering that small problems may occur in the three-level buffering feeding devices during actual construction, and the warehousing speed of roller compacted concrete is influenced by field maintenance, so that two sets of three-level buffering vibration feeding devices (one for one) need to be processed on a construction site, 8 supporting upright columns are required in total, concrete needs to be poured on the foundation at the bottom of each supporting upright column, embedded parts need to be firmly welded with the upright columns, and the heights of the upright columns are adjusted according to the actual conditions on the site; the width of a feed port 101 of the hopper 1 must be larger than the width of the dumper plus the safety distance of two sides; the volume of a single hopper 1 must be greater than 8m3. And finally, determining the position of the belt conveyor 4 at the bottom according to the position of the three-stage buffering vibration feeding device and installing the belt conveyor 4.
This tertiary buffering vibration feeder installs simply at the job site, and basic support column and hopper 1 can separately process at first, during the installation the combination welding together can, and 1 outside both sides installation adhesion formula flat plate vibrator 3 of hopper, set up tertiary buffer in the hopper 1, at last in 1 bottom installation belt transmission system 4 of hopper, the conveyer belt of requirement band conveyer 4 is lower 50cm than 1 bottom feed opening of hopper at least. The upper feed port 101 of the hopper 1 is partially separated from an upper platform (not shown) and can be connected by a steel trestle, so that the dump truck can directly unload the roller compacted concrete into the hopper 1. When the concrete in the hopper 1 is unevenly discharged or the discharge hole 102 of the hopper 1 is blocked, the attached vibrators 3 arranged on two sides of the hopper 1 are immediately adopted for vibration, so that the concrete in the hopper is ensured to fall onto the belt transmission system 4 at a constant speed, and the warehousing strength requirement of roller compacted concrete construction is further met.
The specific processing method of the three-level buffering vibration feeding device comprises the following steps:
a 10mm thick steel plate is adopted to process the hopper 1 on site, the size of a feed port 101 at the upper part of the hopper 1 is larger than the width of the dumper and the safety distance at two sides, and the width of a discharge port 102 at the lower part of the hopper 1 is smaller than the width of the section of the belt transmission system 4; a buffer device is arranged in the hopper by using angle steel (150 x 150) on site. In order to ensure the continuity of the blanking, a flat vibrator 3 is respectively arranged on the side surface of the hopper 1, the performance parameters of the flat vibrator 3 are 1.1KW and 48HZ, the vibrator 3 is arranged at the position of one third of the hopper 1 from bottom to top, and the vibrator 3 is positioned at the middle position of two short edges of the hopper 1;
this tertiary buffering vibratory feed device's key technology lies in how avoiding leading concrete transportation to break off because the unloading speed is too fast and the dead belt of pressure in the hopper 1, must solve this problem, guarantees the continuity of unloading to satisfy and pour the intensity requirement.
Through a plurality of field tests, the requirement of the angle steel arrangement can be met by three-level buffering. Arranging buffer devices at all levels from bottom to top: the first-level buffer device 21 is arranged at the center of the discharge hole 102, the second-level buffer device 22 is arranged at the one-third position of the hopper 1 from bottom to top, and the third-level buffer device 23 is arranged at the two-third position of the hopper 1 from bottom to top. The vibrator 3 is turned on when the feeding is abnormal, thereby enhancing the continuity of the feeding.
The three-level buffering vibration feeding device is applied to roller compacted concrete construction of a dam of Kanfixia hydropower station project under Zanbia, and the total amount of the roller compacted concrete of the project is 130 ten thousand meters3Under the situation that other conditions do not change, adopt other feeder to compare with this device, adopt this device obviously to accelerate the construction progress, reduced construction cost, practiced thrift construction period, the concrete implementation is as follows:
1) firstly, constructing and supporting upright post foundations (8 upright post foundations, wherein each feeding hopper is supported by 4 upright post foundations, and 2 feeding hoppers are provided in total);
2) welding the support columns and the foundation embedded part to ensure the stability of the columns, connecting 4 support columns into a whole by adopting I-shaped steel or channel steel, and arranging steel connecting beams among the support columns;
3) preparing materials required by hopper processing according to a construction drawing, manually processing the hoppers, wherein the processing quantity of the hoppers is 2, all the hoppers are installed in place (one hopper is used for each standby), and in order to save the time during manufacturing, the step can be synchronously carried out with the step 1);
4) after the hopper 1 is processed, the hopper 1 is transported to a position where the installation of the supporting upright post is completed, and the hopper installation work is prepared;
5) according to a detailed drawing, determining the welding position of the hopper 1 and the supporting upright post, and then immediately welding the hopper 1 and the supporting upright post to ensure that the hopper 1 and the supporting upright post are welded firmly;
6) a buffer device 2 is arranged in the hopper 1, and the material can be the existing angle steel (less than 100 and less than 100) on site or other similar materials;
7) the lateral surfaces of the hopper are respectively provided with a vibrator 3, and the vibrator 3 is a flat vibrator (1.1KW 48HZ) positioned at 1/3 of the height of the hopper;
8) a belt transmission system 4 is arranged at a position which is about 50cm below the bottom discharge port 102 of the hopper 1, and the width of a transmission belt of the belt transmission system 4 is larger than that of the bottom discharge port 102 of the hopper 1;
9) the belt transmission system 4 is tested in the no-load state until no problem exists in the no-load operation of the belt transmission system 4;
10) paving a gap between a feed inlet 101 at the upper part of the hopper 1 and the joint of an original road by adopting a steel trestle made of steel bars and channel steel;
11) the belt transmission system 4 is debugged under the action of load, the roller compacted concrete is transported by using a dumper and is unloaded in the hopper 1, and the belt transmission system 4 is debugged;
12) meanwhile, according to the blanking condition of the hopper 1, the three-stage buffer device in the hopper 1 is adjusted until the blanking is uniform and continuous.
And (4) conclusion: through a plurality of field tests, the buffer device 2 is found to be arranged in three stages to meet the requirements better. The third-stage buffer device 23 is arranged at the height from 1/3 of the bottom discharge opening of the hopper 1, the second-stage buffer device 22 is arranged at the height from 1/3 of the bottom discharge opening 102 of the hopper 1, and the first-stage buffer device 21 is arranged at the central line position of the bottom discharge opening 102 of the hopper. The flat vibrator is also mounted at a bottom-up height 1/3. The vibrator 3 is turned on when the discharge port 102 of the bottom of the hopper 1 is clogged or the discharging portion is uniform, thereby enhancing the continuity of the discharging.
This tertiary buffering vibration feeder can utilize the material that the job site is commonly used to process, make, and processing is simple swift, and the preparation is fast, and is with low costs, and hopper feed opening can be processed according to the width of tipper, and the size also can be adjusted according to the construction needs to the hopper volume in addition. The device unloading speed satisfies the demand of pouring intensity completely, and each item performance parameter of the concrete of transporting to in the storehouse number is good, does not have the aggregate separation. Compared with other devices and devices, the device can meet the requirements of construction sites. The three-level buffering vibration feeding device has the main advantages that: the processing is simple and quick; the average blanking speed is 280-320m3H, the fastest reaches 400m3The casting strength requirement of the roller compacted concrete can be completely met; the concrete has good performance parameters, and the aggregate separation phenomenon does not exist; the method is durable and reliable, and has low failure rate; convenient operation, simple maintenance and very good economical efficiency and applicability.
By adopting the three-level buffering vibration feeding device, the characteristics of quick warehousing of roller compacted concrete in construction of dumper and belt transmission are embodied to the maximum extent, the problem that the roller compacted concrete can not be continuously warehoused by a hopper of the conventional belt transmission system is solved, good results are obtained in the aspects of social benefits, economic benefits and the like, and the concrete description is as follows:
social benefits are as follows: the three-level buffering vibration feeding device fills the blank that the dumper and a belt system cannot be continuously poured in the existing roller compacted concrete construction, improves the warehousing speed of the roller compacted concrete, avoids the waste of the roller compacted concrete caused by faults of other devices and equipment, reduces the environmental pollution in the construction process, utilizes the efficiency of the dumper for transporting the roller compacted concrete to the maximum extent, and ensures the warehousing strength and the construction quality of the roller compacted concrete.
Economic benefits are as follows: three-level buffering vibration feeding device more than adopting, raw and other expenses are 1/5 ~ 1/8 of purchasing other equipment, device for raw and other processing, installation and all other expenses, and the construction progress has been accelerated to the on-the-spot three-level buffering vibration feeding device that adopts in addition, has reduced construction cost, has practiced thrift construction period.
Under the condition that other conditions are not changed, 5 ten thousand meters are poured in each bin3The roller compacted concrete is taken as an example, other feeding devices are adopted, and the maximum warehousing strength is 250m3H, average warehousing intensity of 200m3The casting time is 22h per day (except for the belt system for overhauling and maintaining 2h per day), and the concrete casting quantity is 22 x 200 ═ 4400m per day3Pouring 5 ten thousand meters3The time required for roller compacted concrete is 50000m3/ (4400m3/d)＝11.36d。
If the three-stage buffering vibration feeding device is adopted, the maximum warehousing strength is 400m3H, average warehousing intensity of 300m3The casting time is 22h per day (the belt system is repaired and maintained 2h per day is removed), and the concrete casting amount is 22 x 300 to 6600m per day3Pouring 5 ten thousand meters3The time required for roller compacted concrete is 50000m3/(6600m3/d) which is 7.58 d.
Therefore, by adopting the three-stage buffering vibration feeding device, the pouring time period is obviously shortened compared with other feeding devices, and the construction period can be shortened by 11.36d-7.58 d-3.78 d (about 4 days). From the above calculation, it is found that the larger the amount of concrete poured, the more the time period is saved. When the construction period is reduced, all the expenses of construction managers, construction personnel, mechanical equipment and the like are correspondingly reduced.
The total amount of the engineering roller compacted concrete is 130 ten thousand meters3Wherein the amount of the roller compacted concrete needing to be poured by a belt conveyor is 70 ten thousand meters3Under the condition that other conditions are not changed, other feeding devices are adopted, and the amount of concrete poured per day is 22 x 200 ═ 4400m3Pouring, 70 ten thousand meters3Rolling mixThe time required for the concretes was 700000m3/(4400m3And/d) 159d (pure casting time, excluding bin number preparation time).
If the three-stage buffering vibration feeding device is adopted, the pouring time per day is 22h (the belt system is removed for overhauling and maintaining per day 2h), and the concrete pouring amount per day is 22 x 300-6600 m3Pouring 130 ten thousand meters3The time required for rolling concrete is 700000m3/(6600m3And d) 106d (pure pouring time, excluding bin number preparation time). The construction period is saved as follows: 159d to 106d is 53d (pure casting time, not including bin number preparation time), so that the cost saved due to the shortened construction period is 53/159 to 0.333, and the cost is 1/3 of the construction cost during the original roller compacted concrete casting.
The monthly expenses such as labor cost, mechanical depreciation cost, water cost, electricity cost and the like in the construction period of the original roller compacted concrete are about 240 ten thousand yuan, the construction period is saved for 53 days, and the total saved cost is 240 × 53/30-424 ten thousand yuan.
The three-level buffering vibration feeding device is processed and manufactured by materials commonly used in a construction site, the processing is simple and rapid, the manufacturing speed is high, the cost is low, a hopper feed opening can be processed according to the width of a dumper, and the volume of the hopper can be adjusted according to construction requirements. The device unloading speed satisfies the demand of pouring intensity completely, and each item performance parameter of the concrete of transporting to in the storehouse number is good, does not have the aggregate separation. Compared with other devices and devices, the device can meet the requirements of construction sites.
The processing is simple and quick; the average blanking speed is 280-320m3H, the fastest reaches 400m3The casting strength requirement of the roller compacted concrete can be completely met; the concrete has good performance parameters, and the aggregate separation phenomenon does not exist; the method is durable and reliable, and has low failure rate; convenient operation, simple maintenance and very good economical efficiency and applicability.
While the invention has been described with reference to a preferred embodiment, 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. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The three-level buffering vibration feeding device is characterized by comprising a hopper, a buffering device and a vibrator, wherein the buffering device is arranged in the hopper, the buffering device is arranged from bottom to top, the buffering device comprises a first-level buffering device, a second-level buffering device and a three-level buffering device, the first-level buffering device, the second-level buffering device and the three-level buffering device are sequentially arranged in the hopper from bottom to top, the first-level buffering device is a transverse rod, the second-level buffering device is two transverse rods arranged at intervals, the three-level buffering device is two transverse rods arranged at intervals, and all the transverse rods of the first-level buffering device, the second-level buffering device and the three-level buffering device are arranged in parallel; the vibrator is fixedly arranged on the outer wall of the hopper; the area of a feed port at the upper part of the hopper is larger than that of a discharge port at the lower part of the hopper; the first-stage buffer device is arranged at the center of the discharge hole, the second-stage buffer device is arranged at one third of the position of the hopper from bottom to top, and the third-stage buffer device is arranged at two thirds of the position of the hopper from bottom to top; the cross rods of the first-level buffer device, the second-level buffer device and the third-level buffer device are all parallel to the short edges of the feeding hole.
2. The three-stage cushioned vibratory feed apparatus as recited in claim 1 wherein said vibrator is positioned one third of the way up the hopper and the vibrator is positioned in the middle of the two short sides of the hopper.
3. The three-stage buffering vibratory feeding device suitable for roller compacted concrete according to claim 2, wherein the feeding port and the discharging port of the hopper are both rectangular, the feeding port is 3.5 meters long and 2.5 meters wide, and the discharging port is 1.5 meters long and 0.7 meters wideThe volume of a single hopper is more than 8m3。
4. A three stage cushioned vibratory feed apparatus as claimed in claim 3 wherein the two rails of the secondary cushion unit trisect the cross-section of the hopper at its height.
5. The tertiary buffer vibratory feeding device suitable for roller compacted concrete of claim 4, wherein the cross bars of the primary buffer device, the secondary buffer device and the tertiary buffer device are all of angle steel structure, and the specification of the angle steel is 150mm x 10 mm.
6. The three-stage buffering vibratory feeding device suitable for roller compacted concrete according to claim 5, wherein the vibrator is two attached flat plate vibrators, and the two attached flat plate vibrators are symmetrically arranged.
7. The three-stage buffering vibratory feeding device suitable for roller compacted concrete according to claim 5, further comprising a belt transmission system arranged at the lower part of the discharge port, wherein the belt transmission system is a belt conveyor.
8. The three-stage buffering vibratory feeding device suitable for roller compacted concrete according to claim 7, further comprising a discharge outlet extension part arranged at the lower part of the discharge outlet, wherein the discharge outlet extension part vertically extends downwards from the periphery of the discharge outlet at the lower part of the hopper, and the length of the discharge outlet extension part is 0.3-0.5 m.
9. A three-stage damping vibratory feeding device suitable for roller compacted concrete according to claim 8, wherein a pair of inwardly inclined baffles is fixedly arranged on both long sides of the discharge port extension part, and the length of the baffles is 0.15-0.25 m.
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| CN202023338774.5U CN214365016U (en) | 2020-12-31 | 2020-12-31 | Tertiary buffering vibration feeder suitable for roller compacted concrete |
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| CN (1) | CN214365016U (en) |
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2020
- 2020-12-31 CN CN202023338774.5U patent/CN214365016U/en active Active
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