CN213021882U

CN213021882U - Grit material moisture content measuring device

Info

Publication number: CN213021882U
Application number: CN202022325436.1U
Authority: CN
Inventors: 徐维军; 张雷雷; 邱峰; 熊家乐; 杜贵军
Original assignee: Shandong Bosure Automation Technology Co ltd
Current assignee: Shandong Bosure Automation Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-04-20
Anticipated expiration: 2030-10-19

Abstract

When the aggregate is proportioned, a bin gate I of one aggregate bin is opened, aggregates in the aggregate bin fall downwards onto a conveying belt, the conveying belt conveys the aggregates forwards, the aggregates fall into a ridge hopper in a parabolic shape at the front end of the conveying belt, and the moisture content of the aggregates is detected by a moisture content sensor in the ridge hopper. Because the moisture content of the sandstone aggregate in the concrete is measured one by one, the system is simplified, and the cost is reduced. And a moisture content sensor is used for measuring moisture content of various aggregates, so that the cost is saved, and a control system is simplified. Meanwhile, as the aggregates fall into the ridge hopper in a scattering state, the aggregates impact the surface of the water content sensor, the situation that the aggregates are stuck on the surface of the aggregate due to the fact that the aggregates contain sand and mud is avoided, manual cleaning is not needed, and therefore the measurement accuracy is high and the measurement is stable.

Description

Grit material moisture content measuring device

Technical Field

The utility model relates to a concrete batching technical field, concretely relates to grit material moisture content measuring device.

Background

At present, in the field of concrete production, in order to improve the quality of concrete, the water-cement ratio of the concrete must be ensured, and the slump of the concrete must be controlled for the workability of the concrete. Whether the water-gel ratio is ensured or the slump is controlled, the water content of the sand material needs to be measured due to the influence of the fluctuation of the water content of the sand material. Through years of development of on-line measuring technology for water content of sandstone at home and abroad, a plurality of on-line measuring methods are researched, wherein the microwave measuring method is minimally influenced by impurities, color, granularity or temperature and is absolutely safe, so that the microwave measuring method is the most widely applied method at home and abroad at present. The microwave method transmits high-frequency microwave through a microwave sensor, the phase shift and attenuation of the high-frequency microwave are obviously increased after the high-frequency microwave passes through the sandstone material containing moisture, and the sensor can analyze and calculate the moisture content of the sandstone material by measuring signals returned by the microwave, such as power attenuation, phase change, resonant frequency and the like.

At present, an aggregate microwave moisture content sensor is usually arranged in a concrete production line aggregate bin, near a bin gate or on an aggregate conveying belt, and the content of free moisture in the aggregate is detected in real time by an online method, but each of the three methods has a specific problem. If the device is arranged on a conveying belt, the measurement is greatly influenced by material flow, the measurement stability is poor when the material flow is unstable, and the precision is low; if the device is arranged in a material collecting bin of a concrete production line, the device can only detect the water content of a contact material within a certain range, and the measurement precision is low when the water content of the material is not uniform; if install near the storehouse door of collection material storehouse, measure each kind of material and all need set up the moisture content sensor respectively, under the condition of having major-minor door, more need the moisture content sensor of multiple quantity, with high costs, receive the restriction of storehouse door width simultaneously, when the storehouse door is wider, the material stream can not always flow through the moisture content sensor, measures poor stability, and the precision is low. Meanwhile, the three methods all have the problem of sand mud-containing paste, mud contained in sand flowing through the water content sensor covers the surface of the water content sensor, even the water content sensor is stuck, measurement data distortion is caused, manual cleaning or automatic cleaning devices are generally needed to be added, and application is unreliable and high in cost.

Disclosure of Invention

The utility model discloses an overcome not enough of above technique, provide a measuring device that can the accurate moisture content of every grit aggregate in the accurate measurement concrete.

The utility model overcomes the technical scheme that its technical problem adopted is:

the utility model provides an grit material moisture content measuring device, includes: the device comprises a rack, wherein N aggregate bins are arranged at the upper end of the rack at intervals along the length direction of the rack, N is a positive integer greater than or equal to 2, and bin gates I are arranged at the outlet parts of the lower ends of the aggregate bins; the conveying belts are horizontally arranged in the rack along the length direction of the rack, are positioned right below the outlets of the aggregate bins, and convey the aggregates discharged by the aggregate bins forwards; and a ridge hopper bracket which is positioned at the front end of the frame, is provided with a ridge hopper, is provided with a moisture content sensor, is driven by the conveying belt, and is used for throwing the aggregates in a parabolic shape into the ridge hopper, and the moisture content sensor is used for measuring the moisture content of the aggregates in a throwing state.

In order to weigh the aggregate, still including setting up N hopper of weighing, every hopper of weighing passes through weighing sensor and links to each other with the frame, and every hopper of weighing is located the aggregate storehouse that corresponds under, and the lower extreme export position of hopper of weighing is provided with door II, and the export position of hopper of weighing is located conveyor belt directly over.

Preferably, the aggregate collecting device further comprises a sensor bracket obliquely installed in the ridge hopper, the moisture content sensor is installed on the sensor bracket, and the aggregate conveyed by the conveying belt is thrown onto the sensor bracket.

Further, above-mentioned sensor support is including being trapezoidal swash plate and setting up the baffle including standing in the swash plate lower extreme left and right sides, stand the baffle perpendicular to swash plate, moisture content sensor installs on the swash plate.

The utility model has the advantages that: when the aggregate is proportioned, a bin gate I of one aggregate bin is opened, the aggregates in the aggregate bin fall downwards onto a conveying belt, the conveying belt conveys the aggregates forwards, the aggregates fall into a ridge hopper in a parabolic shape at the front end of the conveying belt, and the moisture content of the aggregates is detected by a moisture content sensor in the ridge hopper. Because the moisture content of the sandstone aggregate in the concrete is measured one by one, the system is simplified, and the cost is reduced. And a moisture content sensor is used for measuring moisture content of various aggregates, so that the cost is saved, and a control system is simplified. Meanwhile, as the aggregates fall into the ridge hopper in a scattering state, the aggregates impact the surface of the water content sensor, the situation that the aggregates are stuck on the surface of the aggregate due to the fact that the aggregates contain sand and mud is avoided, manual cleaning is not needed, and therefore the measurement accuracy is high and the measurement is stable.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the sensor holder according to the present invention;

in the figure, 1, a frame 2, an aggregate bin 3, a bin gate I4, a weighing hopper 5, a weighing sensor 6, a conveying belt 7, a bracket 8, a ridge hopper 9, a sensor bracket 10, a water content sensor 11, aggregate 12, a bin gate II 91, a sloping plate 92 and a baffle plate are erected.

Detailed Description

The present invention will be further explained with reference to fig. 1 and 2.

The utility model provides an grit material moisture content measuring device, includes: the device comprises a rack 1, wherein N aggregate bins 2 are arranged at the upper end of the rack 1 at intervals along the length direction of the rack, N is a positive integer greater than or equal to 2, and bin gates I3 are arranged at the outlet parts of the lower ends of the aggregate bins 2; the conveying belts 6 are horizontally arranged in the rack 1 along the length direction of the rack 1, the conveying belts 6 are positioned right below the outlets of the aggregate bins 2, and the aggregates 11 discharged from the aggregate bins 2 are conveyed forwards by the conveying belts 6; and a ridge hopper bracket 7 positioned at the front end of the frame 1, wherein a ridge hopper 8 is arranged on the ridge hopper bracket 7, a moisture content sensor 10 is arranged in the ridge hopper 8, the aggregates 11 are thrown and scattered in the ridge hopper 8 in a parabolic shape under the driving of the conveying belt 6, and the moisture content sensor 10 measures the moisture content of the aggregates 11 in the throwing state. The aggregate is generally 3 to 6 kinds, and thus a plurality of aggregate bins 2 are provided, each of which 2 stores a different aggregate. During mixing, the bin gate i 3 of one aggregate bin 2 is opened, the aggregates 11 in the aggregate bin 2 fall downwards onto the conveying belt 6, the conveying belt 6 conveys the aggregates 11 forwards, the aggregates 11 fall into the ridge hopper 8 in a parabolic shape at the front end of the conveying belt 6, the moisture content sensor 10 in the ridge hopper 8 detects the moisture content of the aggregates 11, the aggregates 11 falling from the ridge hopper 8 are conveyed outwards through the lifting belt, and the above operations are repeated until all the aggregates in the aggregate bin 2 are conveyed into the ridge hopper 8 through the conveying belt 6 and are detected by the moisture content sensor 10. The water content of the sandstone aggregate in the concrete is measured one by one, so that the system is simplified, and the cost is reduced. And the moisture content sensor 10 is utilized to measure the moisture content of various aggregates, so that the cost is saved, and a control system is simplified. Meanwhile, as the aggregates 11 fall into the ridge hopper 8 in a scattering state, the aggregates impact the surface of the water content sensor 11, the situation that the aggregates are stuck on the surface of the aggregates due to the fact that the aggregates contain sand and mud is avoided, manual cleaning is not needed, and therefore the measurement accuracy is high and the measurement is stable.

Further, still including setting up a N hopper 4 of weighing, every hopper 4 of weighing links to each other with frame 1 through weighing sensor 5, and every hopper 4 of weighing is located under the aggregate storehouse 2 that corresponds, and the lower extreme export position of hopper 4 of weighing is provided with door II 12, and the export position of hopper 4 of weighing is located conveyor belt 6 directly over. Open the back when certain time and close when door I3, aggregate 11 in this aggregate storehouse 2 falls into the hopper 4 that weighs that its lower extreme corresponds, weighing sensor 5 weighs hopper 4, the purpose of weighing ensures that the weight of aggregate 11 that falls through aggregate storehouse 2 is up to standard, utilize weighing of its weighing hopper 4 to judge whether slope of aggregate 11 in the hopper 4 is clean through weighing sensor 5 in addition, prevent that the aggregate in one weighing hopper 4 from not having the slope clean and the aggregate of another weighing hopper 4 from having the condition emergence of the compounding that the slope leads to.

Further, the aggregate processing device further comprises a sensor bracket 9 obliquely installed in the ridge hopper 8, the moisture content sensor 10 is installed on the sensor bracket 9, and the aggregates 11 conveyed by the conveying belt 6 are scattered on the sensor bracket 9. The moisture content sensor 10 can be easily fixed by providing the sensor holder 9, and since the sensor holder 9 is obliquely provided, the thrown aggregate 11 can be introduced into the ridge hopper 8. Preferably, the sensor holder 9 includes a trapezoidal inclined plate 91 and vertical baffles 92 provided on both sides of the lower end of the inclined plate 91, the vertical baffles 92 are perpendicular to the inclined plate 91, and the moisture content sensor 10 is mounted on the inclined plate 91. Since the vertical baffles 92 are respectively provided at the left and right ends of the inclined plate 91 and the inclined plate 91 has a trapezoidal structure, the aggregates 11 are collected and the aggregates 11 are ensured to fall into the ridge hopper 8.

Claims

1. The utility model provides an grit material moisture content measuring device which characterized in that includes:

the device comprises a rack (1), wherein N aggregate bins (2) are arranged at the upper end of the rack along the length direction of the rack at intervals, N is a positive integer greater than or equal to 2, and a bin door I (3) is arranged at the outlet of the lower end of each aggregate bin (2);

the conveying belts (6) are horizontally arranged in the rack (1) along the length direction of the rack (1), the conveying belts (6) are positioned right below the outlets of the aggregate bins (2), and the aggregates (11) discharged from the aggregate bins (2) are conveyed forwards by the conveying belts (6); and

the ridging hopper bracket (7) is positioned at the front end of the rack (1), a ridging hopper (8) is arranged on the ridging hopper bracket (7), a water content sensor (10) is arranged in the ridging hopper (8), the aggregates (11) are thrown and scattered in the ridging hopper (8) in a parabolic shape under the driving of the conveying belt (6), and the water content sensor (10) measures the water content of the aggregates (11) in the throwing state.

2. The grit material moisture content measuring device as claimed in claim 1, wherein: still including setting up a N hopper (4) of weighing, every hopper (4) of weighing links to each other with frame (1) through weighing sensor (5), and every hopper (4) of weighing is located corresponding aggregate storehouse (2) under, and the lower extreme export position of hopper (4) of weighing is provided with door II (12), and the export position of hopper (4) of weighing is located conveyor belt (6) directly over.

3. The grit material moisture content measuring device as claimed in claim 1, wherein: the device is characterized by further comprising a sensor bracket (9) obliquely arranged in the ridging hopper (8), the water content sensor (10) is arranged on the sensor bracket (9), and the aggregates (11) conveyed by the conveying belt (6) are scattered on the sensor bracket (9).

4. The grit material moisture content measuring apparatus as claimed in claim 3, wherein: sensor support (9) are including being trapezoidal swash plate (91) and setting up baffle (92) and constitute in the upright baffle (92) of swash plate (91) lower extreme left and right sides, upright baffle (92) perpendicular to swash plate (91), moisture content sensor (10) are installed on swash plate (91).