Stock bin and economizer ash conveying system

Abstract

The invention relates to the field of ash conveying devices, in particular to a stock bin and an economizer ash conveying system.The stock bin comprises a bin body, an air injection component, a level gage and an emptying valve, a vacuum release valve and the level gage are both arranged at the top of the bin body, a preset distance is arranged between the level gage and the emptying valve, and the air injection component is arranged at the top of the bin body; the output end of the air injection component faces the side, away from the emptying valve, of the material level meter, and the air injection component, the material level meter and the emptying valve are collinearly arranged. According to the stock bin, the material level indicator can be prevented from gathering materials, and the operation stability of a system is improved.

Description

Technical Field

[0001] The invention relates to the field of ash conveying devices, and in particular to an ash conveying system for a silo and an economizer. Background Art

[0002] In the process of power generation, due to process requirements, multiple fly ash silos and limestone powder silos are set up in the economizer ash conveying system, and the material levels of the fly ash silos and limestone powder silos need to be monitored in real time. When monitoring the material levels of fly ash silos and limestone powder silos in real time. Due to uneven clinker in the ash silo and poor material fluidity, it is easy to cause uneven accumulation of materials in the ash silo, and the dust in the ash silo is easy to contaminate the material level meter probe of the ash silo, which can easily cause the ash silo material level meter to falsely alarm and fail to work normally. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a silo that can avoid material accumulation in a level meter and improve the operating stability of the system. An embodiment of the present invention provides an economizer ash conveying system.

[0004] The silo of the embodiment of the present invention comprises:

[0005] A silo body, wherein the ash conveying pipeline outlet is connected to the upper end of the silo body;

[0006] The material level meter and the drain valve, the vacuum release valve and the material level meter are all arranged on the top of the bin body, and a preset distance is set between the material level meter and the drain valve;

[0007] The jet component is arranged on the top of the bin body, the output end of the jet component is toward the side of the level meter away from the drain valve, and the jet component, the level meter and the drain valve are arranged in the same line.

[0008] The silo of the embodiment of the present invention can prevent material accumulation in the level meter and improve the operating stability of the system.

[0009] In some embodiments, an extension direction of the material level meter and an extension direction of the bin body have a preset angle A, and 30°≤A≤80°.

[0010] In some embodiments, a preset distance between the material level meter and the drain valve is B, and 5 cm ≤ B ≤ 8 cm.

[0011] In some embodiments, a preset distance between the material level meter and the jetting component is C, and 2 cm ≤ C ≤ 10 cm.

[0012] In some embodiments, the number of the material level gauges is multiple, the number of the drain valves and the jet components is multiple, and the multiple material level gauges correspond to the drain valves one by one, and the multiple material level gauges correspond to the drain valves one by one.

[0013] In some embodiments, the jetting component includes a jetting pipe and a first valve, wherein the first valve is disposed at an inlet of the jetting pipe, and an outlet of the jetting pipe faces the material level meter.

[0014] In some embodiments, a pressure monitoring component is further included, wherein the pressure monitoring component is disposed on the silo body to monitor the pressure inside the silo body.

[0015] In some embodiments, the material level meter is any one of a radar material level meter, an ultrasonic material level meter or a guided wave radar material level meter.

[0016] In some embodiments, the economizer ash conveying system further includes a manual gate valve and a pneumatic feed valve, wherein one end of the manual gate valve is connected to the bin body outlet, and the other end of the manual gate valve is connected to the pneumatic feed valve.

[0017] The economizer ash conveying system according to the embodiment of the present invention comprises:

[0018] A silo, wherein the silo is any one of the silos described above;

[0019] The economizer body and the ash conveying pipeline, wherein the ash conveying pipeline outlet is connected to the upper end of the bin body.

[0020] The economizer ash conveying system of the embodiment of the present invention can prevent material accumulation in the level meter and improve the operating stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of an economizer ash conveying system according to an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of a silo according to an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of an air injection component according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] Bin 1, material level meter 2, drain valve 3,

[0026] Injection component 4, injection pipe 41, first valve 42,

[0027] Ash conveying pipeline 5, manual gate valve 6, pneumatic feed valve 7, economizer body 8. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] The silo of the embodiment of the present invention includes an air jet component 4, a level meter 2, an emptying valve 3 and a silo body 1, the outlet of the ash conveying pipeline 5 is connected to the upper end of the silo body 1, the vacuum release valve and the level meter 2 are both arranged at the top of the silo body 1, and a preset distance is set between the level meter 2 and the emptying valve 3, the air jet component 4 is arranged at the top of the silo body 1, the output end of the air jet component 4 is toward the side of the level meter 2 away from the emptying valve 3, and the air jet component 4, the level meter 2 and the emptying valve 3 are arranged in the same line.

[0030] Specifically, the extension direction of the silo 1 is the up and down direction, that is, the direction of gravity. The economizer body 8 is connected to the ash conveying pipe 5 to output the material from the silo 1. The economizer and the ash conveying pipe 5 can be existing components or devices to transport the material into the silo 1. The material is accumulated in the silo 1. When the material level reaches a certain height, the silo 1 is opened to transport the material.

[0031] When the material enters and exits the silo 1, it is necessary to open or close the drain valve 3 to prevent the air pressure in the silo 1 from being unfavorable to the entry and exit of the material. At the same time, when the drain valve 3 is opened, the air flow around the inlet of the drain valve 3 will impact the wall of the silo 1. The present application sets the level meter 2 around the drain valve 3 so that when the drain valve 3 is opened, the material air flow impacts the level meter 2 to remove the material or debris on the level meter 2. At the same time, the part of the level meter 2 away from the drain valve 3 is also prone to accumulate materials or debris. The jet component 4 is set on the side of the level meter 2 away from the drain valve 3. The jet component 4 is suitable for connecting to an air source, such as a silo pump of a coal economizer or an air source for a pneumatic component. The jet component 4 blows gas to the level meter 2 to remove debris or accumulated materials that can avoid the monitoring end of the level meter.

[0032] The economizer ash conveying system of the embodiment of the present invention arranges a preset distance between the level meter 2 and the drain valve 3, and utilizes that when the drain valve 3 is opened, the air flow around the inlet of the drain valve 3 will cause an impact on the level meter 2, so as to clear the materials or debris on the level meter 2. At the same time, the jet component 4 is arranged on the side of the level meter 2 away from the drain valve 3, so as to clean the level meter 2 from multiple angles, avoid the accumulation of materials in the level meter 2, and improve the operation stability of the system.

[0033] In some embodiments, the extension direction of the material level meter 2 and the extension direction of the silo body 1 have a preset angle A, and 30°≤A≤80°.

[0034] Furthermore, the extension direction of the level meter 2 and the extension direction of the silo 1 have a preset angle A, that is, the extension direction of the level meter 2 and the up-down direction have a preset angle A, that is, the extension direction of the level meter 2 and the gravity direction have a preset angle A, for example, A can be 30°, 40°, 50°, 55°, 45°, 60°, 65°, 70°, 75°, 80°. Then, the level meter 2 can be tilted according to actual conditions, such as the length of the level meter 2 in the up-down direction, to avoid the lowest part of the level meter 2 being too close or too far from the inlet of the drain valve 3, resulting in too little impact of the air flow on the level meter 2 when the drain valve 3 is opened or closed, thereby improving the stability and safety of the use of the level meter 2.

[0035] Furthermore, the preset spacing between the level meter 2 and the drain valve 3 is B, and 5cm≤B≤8cm. It can be understood that the spacing between the lower end of the level meter 2, i.e., the monitoring end of the level meter 2, and the lower end inlet and outlet of the drain valve 3 is B. By setting B, it can be avoided that the operator places the level meter 2 too close or too far from the inlet of the drain valve 3 during installation. At the same time, B is set to ensure the cleaning effect of the air flow on the level meter 2 when the drain valve 3 is opened or closed, thereby improving the stability and safety of the use of the level meter 2. And avoid poor exhaust effect of the drain valve 3 due to being too close.

[0036] In some embodiments, the preset distance between the level meter 2 and the jet component 4 is C, and 2cm≤C≤10cm. By setting C, it is prevented that the jet component 4 is too far away from the monitoring end of the level meter 2, resulting in poor cleaning effect, or too close to affect the normal operation of the level meter 2.

[0037] In some embodiments, there are multiple level meters 2, multiple drain valves 3 and multiple injection components 4, multiple level meters 2 correspond one-to-one to the drain valves 3, and multiple level meters 2 correspond one-to-one to the drain valves 3, thereby improving the stability and safety of the level monitoring of the silo 1.

[0038] In some embodiments, the jetting component 4 includes a jetting pipe 41 and a first valve 42 . The first valve 42 is disposed at the inlet of the jetting pipe 41 , and the outlet of the jetting pipe 41 faces the material level meter 2 .

[0039] In some embodiments, a pressure monitoring component is further included, and the pressure monitoring component is arranged on the silo 1 to monitor the pressure in the silo 1, so as to cooperate with the emptying valve 3. For example, when the silo 1 is discharging materials, the pressure monitoring component monitors the pressure in the silo 1. When the pressure is too high, the emptying valve 3 is opened to discharge the materials in the silo 1.

[0040] In some embodiments, the material level meter 2 is any one of a radar material level meter 2, an ultrasonic material level meter 2 or a guided wave radar material level meter 2. It is convenient to make comprehensive considerations according to specific needs and operating environment to ensure the accuracy and reliability of the measurement results.

[0041] In some embodiments, the economizer ash conveying system further includes a manual gate valve 6 and a pneumatic feed valve 7, one end of the manual gate valve 6 is connected to the outlet of the silo 1, and the other end of the manual gate valve 6 is connected to the pneumatic feed valve 7. The manual gate valve 6 is convenient for controlling the change of the material output flow rate or quickly cutting off the outlet of the silo 1.

[0042] The economizer ash conveying system of the embodiment of the present invention comprises a silo, an economizer body 8 and an ash conveying pipeline 5, wherein the silo is any of the silos described above, and the outlet of the ash conveying pipeline 5 is connected to the upper end of the silo body 1. The economizer body 8 is connected to the ash conveying pipeline 5 to output the material from the silo body 1, and the economizer and the ash conveying pipeline 5 can be existing components or devices to convey the material into the silo body 1, and the material is accumulated in the silo body 1. When the material level reaches a certain height, the silo body 1 is opened to convey the material.

[0043] The economizer ash conveying system of the embodiment of the present invention adopts the above-mentioned silo, which can avoid the accumulation of materials in the level meter 2 and improve the operating stability of the system.

[0044] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A silo, It is characterized in that include: Warehouse body; The material level meter and the drain valve, the vacuum release valve and the material level meter are all arranged on the top of the bin body, and a preset distance is set between the material level meter and the drain valve; The jet component is arranged on the top of the bin body, the output end of the jet component is toward the side of the level meter away from the drain valve, and the jet component, the level meter and the drain valve are arranged in the same line.

2. The economizer ash conveying system according to claim 1, It is characterized in that An extension direction of the material level meter and an extension direction of the bin body have a preset angle A, and 30°≤A≤80°.

3. The economizer ash conveying system according to claim 1, It is characterized in that The preset distance between the material level meter and the drain valve is B, and 5cm≤B≤8cm.

4. The economizer ash conveying system according to claim 1, It is characterized in that The preset distance between the material level meter and the jetting component is C, and 2cm≤C≤10cm.

5. The economizer ash conveying system according to claim 2, It is characterized in that There are multiple material level meters, multiple drain valves and multiple jet components, multiple material level meters correspond to the drain valves one by one, and multiple material level meters correspond to the drain valves one by one.

6. The economizer ash conveying system according to claim 5, It is characterized in that The jetting component comprises a jetting pipe and a first valve, wherein the first valve is arranged at the inlet of the jetting pipe, and the outlet of the jetting pipe faces the material level meter.

7. The economizer ash conveying system according to claim 1, It is characterized in that It also includes a pressure monitoring component, which is arranged on the warehouse body to monitor the pressure in the warehouse body.

8. The economizer ash conveying system according to claim 1, It is characterized in that The material level meter is any one of a radar material level meter, an ultrasonic material level meter or a guided wave radar material level meter.

9. The economizer ash conveying system according to claim 1, It is characterized in that It also includes a manual plug valve and a pneumatic feed valve, one end of the manual plug valve is connected to the warehouse outlet, and the other end of the manual plug valve is connected to the pneumatic feed valve.

10. An economizer ash conveying system, It is characterized in that include: A silo, wherein the silo is the silo according to any one of claims 1 to 9; The economizer body and the ash conveying pipeline, wherein the ash conveying pipeline outlet is connected to the upper end of the bin body.

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