Mechanical powder bin powder level measuring device

Abstract

The utility model belongs to the technical field of powder level measuring devices, and particularly relates to a mechanical powder bin powder level measuring device. A powder float of the mechanical powder bin powder level measuring device is a hollow cone, at least three side openings are formed in the side face of the cone, and a bottom opening is formed in the bottom face of the cone. The hollow structure of the powder floater and the design of the openings in the side face and the bottom face form a hollow structure, the requirement for powder level measurement can be met, it can be guaranteed that powdery materials can pass through the hollow structure of the powder floater when the measuring rope is broken accidentally and the powder floater falls into the powder feeder, the powder feeder is prevented from being blocked, and it is guaranteed that the powder feeder can operate normally. In addition, the powder floater is connected with the measuring rope through a fastener, so that the connection can be ensured to be tighter, and the risk that the powder floater falls off is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of powder level measuring devices, specifically relating to a mechanical powder silo powder level measuring device. Background Technology

[0002] Currently, intermediate storage coal-fired power plants typically install level measuring devices in the pulverized coal silos of boilers to monitor the pulverized coal level. Known methods include radar level monitoring, electrode measurement, ultrasonic ranging, and plumb bob measurement. However, in actual operation, these methods suffer from various limitations. The internal environment of the pulverized coal silo is complex, and automatic measuring devices often exhibit delays and errors (due to the lag and inaccuracy of the values ​​fed back by the DCS). Manual plumb bob methods, using mechanical pulverized coal floats, often lose their measuring ropes due to wear and tear over time. When the float falls onto the upper part of the feeder's baffle plate, it usually blocks the feeder's inlet, preventing pulverized coal from being supplied and affecting the stable operation of the boiler. Currently, there is no satisfactory solution to the problem of ensuring stable boiler operation without affecting the feeder's pulverized coal supply when the float falls. Utility Model Content

[0003] To address the problems existing in the prior art, the present invention provides a mechanical powder silo powder level measuring device, specifically comprising the following:

[0004] A mechanical powder level measuring device for a powder hopper includes a powder float, fasteners, a measuring rope, a pulley assembly, a scale, and a powder marker. The powder float is a hollow cone with at least three side openings and a bottom opening. The upper end of the cone-shaped powder float is connected to one end of the measuring rope via the fasteners. The other end of the measuring rope passes through the pulley assembly and is connected to the powder marker. The scale is vertically positioned, and the powder marker is located on one side of the scale. The fasteners can be rope fasteners or similar devices, as long as they enable the connection between the powder float and the measuring rope.

[0005] Preferably, the lateral opening of the cone is a fan-shaped opening, wherein the central angle of the fan is not less than 30° and the radius is not less than half the length of the lateral side of the cone.

[0006] Preferably, the bottom opening is a circular opening, and the diameter of the circular opening is not less than half the diameter of the bottom surface of the cone.

[0007] Preferably, the pulley assembly includes a first pulley, a second pulley, and a connecting rod, with the first and second pulleys respectively disposed at both ends of the connecting rod; the other end of the measuring rope passes through the top of the first and second pulleys in sequence and is connected to the powder marker.

[0008] The beneficial effects of this utility model are:

[0009] The powder float of the mechanical powder silo level measuring device disclosed in this utility model is a hollow cone. The cone has at least three side openings on its sides and a bottom opening on its base. The hollow structure of the powder float, combined with the side and bottom openings, forms a perforated structure. This not only meets the needs of powder level measurement but also ensures that powdery material can pass through the perforated structure of the powder float if the measuring rope accidentally breaks and the powder float falls into the powder feeder, preventing blockage and ensuring the normal operation of the powder feeder. Furthermore, the powder float and measuring rope are connected by fasteners, ensuring a tighter connection and reducing the risk of the powder float falling off. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the device disclosed in this utility model;

[0011] Figure 2 This is a side view of the powder bleaching device in the apparatus disclosed in this utility model;

[0012] Figure 3 This is a top view of the powder bleaching device disclosed in this utility model. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments shown below do not limit the scope of the invention as described in the claims. Furthermore, the complete contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the invention as described in the claims.

[0014] Reference Appendix Figure 1 A mechanical powder hopper level measuring device includes a powder float 1, a fastener 3, a measuring rope 2, a pulley assembly 4, a scale 5, and a powder level indicator 6. (See attached document) Figure 2-3 The powder float 1 is a hollow cone with at least three side openings 7 on its side and a bottom opening 8 on its bottom surface. The upper end of the cone-shaped powder float 1 is connected to one end of the measuring rope 2 via a fastener 3; the other end of the measuring rope 2 passes through a pulley assembly 4 and is connected to the powder marker 6; the scale 5 is vertically set, and the powder marker 6 is located on one side of the scale 5. The fastener 3 can be a rope fastener or the like, as long as it enables the connection between the powder float 1 and the measuring rope 2.

[0015] In one embodiment of this utility model, the lateral opening of the cone is a fan-shaped opening, wherein the central angle of the fan is not less than 30° and the radius is not less than half the length of the side surface of the cone.

[0016] In one embodiment of this utility model, the bottom opening 8 is a circular opening, and the diameter of the circular opening is not less than half the diameter of the bottom surface of the cone.

[0017] In one embodiment of the present invention, the pulley assembly 4 includes a first pulley, a second pulley, and a connecting rod, wherein the first pulley and the second pulley are respectively disposed at both ends of the connecting rod; the other end of the measuring rope 2 passes through the top of the first pulley and the second pulley in sequence and is connected to the powder mark 6.

[0018] The powder float 1 of the mechanical powder silo level measuring device disclosed in this utility model is a hollow cone. At least three side openings 7 are provided on the side of the cone, and a bottom opening 8 is provided on the bottom surface. The hollow structure of the powder float 1, combined with the side and bottom openings, forms a perforated structure. This not only meets the needs of powder level measurement but also ensures that powdery material can pass through the perforated structure of the powder float 1 if the measuring rope 2 accidentally breaks and falls into the powder feeder, preventing blockage and ensuring the normal operation of the powder feeder. Furthermore, the powder float 1 and the measuring rope 2 are connected by fasteners 3, ensuring a tighter connection and reducing the risk of the powder float 1 falling.

[0019] In the description of this application, it should be noted that the words indicating orientation or positional relationship involved in this application are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mechanical powder bin powder level measuring device, characterized in that: Includes powder float, fasteners, measuring rope, pulley assembly, ruler and powder mark, The powder float is a hollow cone, the side of the cone is provided with at least three side openings, and the bottom surface of the cone is provided with a bottom opening; the upper end of the cone powder float is connected to one end of the measuring rope through a fastener; The other end of the measuring rope passes through the pulley assembly and is connected to the powder mark; The scale is arranged vertically, and the powder mark is arranged on one side of the scale.

2. A mechanical powder bin powder level measuring device according to claim 1, characterized in that: The measuring opening of the cone is a fan-shaped opening, the central angle of the fan-shaped opening is not less than 30°, and the radius is not less than half of the length of the side surface of the cone.

3. A mechanical powder bin powder level measuring device according to claim 2, characterized in that: The bottom opening is a circular opening, and the diameter of the circular opening is not less than half of the diameter of the bottom surface of the cone.

4. The mechanical powder bin powder level measuring device according to any one of claims 1 to 3, characterized in that: The pulley assembly includes a first pulley, a second pulley and a connecting rod, wherein the first pulley and the second pulley are respectively arranged at two ends of the connecting rod; the other end of the measuring rope passes through the top of the first pulley and the second pulley in sequence and is connected to the powder mark.

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