阅读说明：本技术 一种获取筒仓物料挂壁情况的方法 (Method for acquiring wall hanging condition of silo material ) 是由 方顺利 姚伟 张喜来 刘家利 张森 王志超 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种获取筒仓物料挂壁情况的方法,包括步骤1)筒仓顶部中心装设测距设备；2)测距设备沿周向测量距筒仓仓壁的距离,此时测量周向方向据起始位置的角度为θ；3)测距设备测量筒仓内物料的高度,记为h0；4)测距设备测量距离筒仓壁面的距离,记为L；测距设备测量方向与水平面的角度,记为α；5)当时,且时,则在测量周向方向据起始位置的角度为θ,距离测距设备高度长度h的筒壁位置有物料挂壁的现象,此处挂壁的物料厚度D。6)筒仓顶部的测距设备持续改变测试的角度θ和α,从而获取整个筒仓仓壁的物料挂壁位置及挂壁厚度。与现有筒仓物料挂壁情况测试方法相比,本发明实施简单,成本低廉,测量时间短,准确性高。(The invention discloses a method for acquiring the wall hanging condition of silo materials, which comprises the following steps of 1) installing distance measuring equipment in the center of the top of a silo; 2) measuring the distance from the distance measuring equipment to the silo wall along the circumferential direction, wherein the angle of the circumferential direction according to the initial position is measured to be theta; 3) measuring the height of the material in the silo by using distance measuring equipment, and marking as h 0; 4) measuring the distance from the silo wall surface by the distance measuring equipment, and recording the distance as L; the angle between the measuring direction of the distance measuring equipment and the horizontal plane is marked as alpha; 5) when in use When is not in use, and when the distance measuring device is used, the angle of the measuring circumferential direction according to the initial position is theta, the wall of the cylinder wall with the distance h from the distance measuring device is hung, and the thickness D of the hung material is larger. 6) Top of siloThe distance measuring equipment continuously changes the testing angles theta and alpha, so that the material wall hanging position and the wall hanging thickness of the whole silo wall are obtained. Compared with the existing test method for the wall hanging condition of the silo material, the method is simple to implement, low in cost, short in measurement time and high in accuracy.)

1. A method for obtaining the wall hanging condition of silo materials is characterized by comprising the following steps:

1) distance measuring equipment is arranged at the center of the top of the silo;

2) measuring the distance from the distance measuring equipment to the silo wall along the circumferential direction, wherein the angle of the circumferential direction according to the initial position is measured to be theta;

3) measuring the height of the material in the silo by using distance measuring equipment, and marking as h 0;

4) measuring the distance from the silo wall surface by the distance measuring equipment, and recording the distance as L; the angle between the measuring direction of the distance measuring equipment and the horizontal plane is marked as alpha;

5) when in useWhen is not in use, andthen measuring the angle theta from the starting position in the circumferential direction, and the height length of the distance measuring equipmentThe wall of the cylinder has the phenomenon of wall hanging of materials, and the thickness of the wall hanging materials at the position

6) And continuously changing the testing angles theta and alpha by using distance measuring equipment at the top of the silo so as to obtain the material wall hanging position and the wall hanging thickness of the whole silo wall.

2. The method for obtaining the wall built-up condition of the silo material as claimed in claim 1, wherein in the step 1), the distance measuring equipment is laser distance measuring equipment.

3. The method for obtaining the wall built-up condition of the silo material as claimed in claim 1, wherein in the step 1), the distance measuring equipment is radar type distance measuring equipment.

4. The method for obtaining the wall built-up condition of the silo material as claimed in claim 1, wherein a plurality of distance measuring devices are arranged on the top of the silo to improve the accuracy of the test method.

5. The method for obtaining the wall built-up condition of the silo material as claimed in claim 4, wherein each area of the silo wall to be measured can be detected by at least one distance measuring device to obtain the wall built-up condition.

6. The method for obtaining the wall hanging condition of the silo material as claimed in claim 5, wherein when the same region of the silo wall to be measured is detected by a plurality of distance measuring devices, the wall hanging material thickness at the position is an average value of the wall hanging material thicknesses detected by the plurality of distance measuring devices.

7. The method for obtaining the wall built-up condition of the silo material as claimed in claim 1, wherein the upper part of the silo is a cylinder and the lower part is a cone.

8. A method as claimed in claim 1, wherein the silo is used to store coal with high moisture content.

Technical Field

The invention belongs to the technical field of silo material storage, and particularly relates to a method for acquiring the wall hanging condition of silo materials.

Background

The silo is a device for storing materials, has the advantages of low manufacturing cost, large storage capacity and the like, and is widely applied to the fields of electric power, coal, mining, food and the like. When the materials stored in the silo are materials with poor fluidity, high moisture and strong cohesiveness, the materials are often adhered to the wall of the silo, which brings inconvenience to the normal feeding and discharging of the materials in the silo and even seriously affects the running safety of the silo.

At present, vibration equipment is often additionally arranged on the outer wall surface of a silo to eliminate wall-hanging materials on the wall of the silo, but the wall-hanging condition of the materials on the inner wall surface of the silo cannot be accurately judged and mastered in real time.

Disclosure of Invention

The invention aims to provide a method for acquiring the wall hanging condition of silo materials, which can accurately grasp the position of the wall hanging of the materials on the inner wall surface of the silo and the thickness of the wall hanging materials in real time, provides guarantee for the safe operation of the silo, and has simple and convenient whole realization process and low initial investment.

The invention is realized by adopting the following technical scheme:

a method for acquiring the wall hanging condition of silo materials comprises the following steps:

1) distance measuring equipment is arranged at the center of the top of the silo;

2) measuring the distance from the distance measuring equipment to the silo wall along the circumferential direction, wherein the angle of the circumferential direction according to the initial position is measured to be theta;

3) measuring the height of the material in the silo by using distance measuring equipment, and marking as h 0;

4) measuring the distance from the silo wall surface by the distance measuring equipment, and recording the distance as L; the angle between the measuring direction of the distance measuring equipment and the horizontal plane is marked as alpha;

5) when in useWhen is not in use, andthen measuring the angle theta from the starting position in the circumferential direction, and the height length of the distance measuring equipmentThe wall of the cylinder has the phenomenon of wall hanging of materials, and the thickness of the wall hanging materials at the position

6) And continuously changing the testing angles theta and alpha by using distance measuring equipment at the top of the silo so as to obtain the material wall hanging position and the wall hanging thickness of the whole silo wall.

The invention has the further improvement that in the step 1), the distance measuring equipment adopts laser type distance measuring equipment.

The invention is further improved in that in the step 1), radar type distance measuring equipment is adopted.

A further improvement of the invention is to arrange a plurality of distance measuring devices at the top of the silo to increase the accuracy of the test method.

The invention is further improved in that each region of the silo wall surface to be measured can be detected to be in a wall hanging state by at least one distance measuring device.

The invention has the further improvement that when the same region to be detected on the wall surface of the silo is detected by a plurality of distance measuring devices, the thickness of the wall hanging material at the position is the average value of the thicknesses of the wall hanging materials detected by the plurality of distance measuring devices.

The invention has the further improvement that the upper part of the silo is a cylinder, and the lower part of the silo is a cone.

A further improvement of the invention is that the silo is used to store coal that is high in moisture.

The invention has at least the following beneficial technical effects:

according to the invention, only the distance measuring equipment capable of changing the measuring direction is needed to be added at the top of the silo, the distance of the wall surface of the silo at different measuring angle positions is measured and compared with the distance when the wall is not hung, so that whether the wall surface of the silo is hung on the wall or not and the thickness of the wall hanging material are obtained, the equipment investment is low, the whole process is simple, the interference on the normal operation of the silo is avoided, the speed for obtaining the wall hanging position of the material on the inner wall surface of the silo and the thickness of the wall hanging material is high, and the judgment precision is high.

Drawings

Fig. 1 is a schematic diagram of a method for obtaining a wall hanging condition of silo materials according to the invention.

Fig. 2 is a schematic top view of a material wall hanging condition test.

Description of reference numerals:

1-silo wall; 2-silo outlet; 3-silo top; 4-a distance measuring device; 5-materials in the silo; 6-hanging wall materials; 7-upper surface of material in the silo; 8-circumferential test start position; 9-test position θ from the circumferential test start position.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in figure 1, a silo is used for storing fire coal with high water content, and because the fire coal has strong adhesion, a large amount of fire coal often adheres to the inner wall surface of the silo, and the wall-hung fire coal brings great interference to the normal work of the silo. The realization process of the invention is as follows:

1) measuring the distance from the distance measuring equipment to the silo wall along the circumferential direction, wherein the angle of the circumferential direction according to the initial position is measured to be 30 degrees;

2) measuring the height of the material in the silo by using distance measuring equipment, and marking the height as h0 being 3000 mm;

3) measuring the distance from the silo wall surface by using distance measuring equipment, and recording the distance as L being 2700 mm; the angle between the measuring direction of the distance measuring equipment and the horizontal plane is recorded as alpha 60 degrees;

4) at this time, the process of the present invention,and isThe angle in the measuring circumferential direction from the starting position is 30 DEG, the length of the height from the distance measuring device The wall of the cylinder has the phenomenon of wall hanging of materials, and the thickness of the wall hanging materials at the position

5) And continuously changing the testing angles theta and alpha by using distance measuring equipment at the top of the silo so as to obtain the material wall hanging position and the wall hanging thickness of the whole silo wall. Finally, a material wall is hung at a position which is about 2700mm away from the top of the silo, and the maximum wall hanging thickness is about 238 mm.

As shown in fig. 1 and 2, 1 is a silo wall, 2 is a silo outlet, 3 is a silo top, 4 is a distance measuring device, 5 is a silo material, 6 is a wall hanging material, 7 is an upper surface of the silo material, 8 is a circumferential test starting position, and 9 is a test position which is theta away from the circumferential test starting position.

The advantages of the invention include: the position of the material wall hanging on the inner wall surface of the silo and the thickness of the wall hanging material are obtained quickly, and the judgment precision is high; the number of added devices is small, and the normal operation of the silo cannot be interfered; the process realizes the identification and the equipment investment is less.

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.