Automatic ash discharging device of dust removal and ash conveying bin

Abstract

The utility model discloses an automatic ash discharging device of a dust removal ash conveying bin, and relates to the technical field of automatic ash discharging. The system comprises a plurality of ash storage bins, and further comprises level gauges, a main ash conveying pipe and a control unit which are arranged on the ash storage bins, and the level gauges are directly fixed to the ash storage bins and used for monitoring the ash storage amount in the ash storage bins; the main ash conveying pipe is arranged outside the ash storage bins, communicates with each ash storage bin and is used for receiving ash materials for the ash storage bins, when the ash amount in the ash storage bins exceeds a preset alarm value, ash conveying is automatically controlled to be stopped in time, alarm information can be sent out in time on a computer picture to remind operators, excessive ash amount in the bins is avoided, and the ash conveying efficiency is effectively improved through improvement; and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic ash placing, in particular to an automatic ash placing device for a dust removal and ash conveying bin. Background Art

[0002] LF furnaces are a standard feature of modern steelmaking and refining processes. The dust from LF furnace refining, primarily composed of FeO, CaO, and SiO2, is considered metallurgical solid waste and a valuable resource. Ash storage is typically performed in silos.

[0003] For example, Chinese patent publication number CN113526140A discloses a pneumatic ash conveying silo pump anti-blocking mechanism, including a pump tank, which stores powdered materials and is characterized in that it also includes: a fluidizing drive assembly; the fluidizing drive assembly is arranged at the bottom of the pump tank, and the fluidizing drive assembly simultaneously blows fluidizing air into the inner cavity and inner wall of the pump tank to lift the powdered materials into a fluidized state.

[0004] At present, there are several ash silos in the refining dust removal and ash conveying area. The ash discharge of each ash silo is controlled by computers in the main control room. However, the original ash silos are not equipped with any ash quantity detection devices. Instead, the ash silos are grouped and the ash is discharged in rotation after a certain period of time.

[0005] The amount of ash in each ash bin is different. The amount of ash in the ash bins of the same group may be more or less. In addition, there may be a situation where the ash bin that is scheduled to be discharged has no ash, while the other ash bins that are not scheduled to be discharged are full.

[0006] The empty silo without ash is still opened to release ash, while the full silo cannot be released in time because it is not the time for rotation release. This often causes the full silo to be blocked due to excessive ash and requires manual unblocking, which not only affects the release of ash, but also affects the normal operation of dust removal, wasting manpower and material resources. Utility Model Content

[0007] The utility model aims at solving the above technical problems, overcoming the shortcomings of the prior art, and provides an automatic dust discharge device for a dust removal and dust conveying bin.

[0008] The technical solution further defined in the utility model is: an automatic ash discharge device for dust removal and ash conveying bin, comprising an ash storage bin, the ash storage bin is provided with a plurality of ash storage bins, and the device further comprises a ash storage bin provided with a plurality of ash storage bins,

[0009] The material level meter is directly fixed on the ash storage bin to monitor the amount of ash stored in the ash storage bin;

[0010] The main ash conveying pipe is installed outside the ash storage bin and is connected to each ash storage bin to receive ash from the ash storage bin;

[0011] The control unit is connected between the ash storage bin and the main ash conveying pipe, as well as the material level meter, and is used to receive information from the material level meter and open or close the main ash conveying pipe to receive ash from the ash storage bin.

[0012] Furthermore, the control unit includes a PLC cabinet, and each ash storage bin is connected to the PLC cabinet via a cable.

[0013] The aforementioned automatic ash discharge device for a dust removal and ash conveying bin has a control unit including an electric valve. The main ash conveying pipe is connected to each ash storage bin via a branch ash conveying pipe, and the electric valve is provided on the branch ash conveying pipe.

[0014] In the aforementioned automatic dust discharge device for a dust removal and dust conveying bin, the control unit includes an electric control cabinet, and the electric control cabinet is connected to each electric valve via a control cable.

[0015] In the aforementioned automatic dust discharge device for the dust removal and dust conveying bin, the electric control cabinet and the PLC cabinet are connected via a control cable.

[0016] In the aforementioned automatic ash discharge device for dust removal and ash conveying silo, the closing condition of the electric valve is that the amount of ash in the ash storage silo is less than 5%.

[0017] In the aforementioned automatic dust discharge device for the dust removal and dust conveying silo, when the electric valve is closed, the PLC cabinet issues an alarm message to remind the operator.

[0018] The beneficial effects of the utility model are:

[0019] (1) In the present invention, through the analysis of multiple sets of data collected at the production site, the refined dust removal silo is divided into three areas: a high ash area, a relatively large area, and a relatively small area, and the ash inventory conditions are also set to three price levels: small, medium, and high;

[0020] (2) In this utility model, the ash storage bin grouping and timing ash discharge system is cancelled, and a new ash discharge method is implemented to achieve the purpose of more ash discharge times in the high ash area and less ash discharge times in the low ash area;

[0021] (3) In the present invention, when the amount of ash in the ash bin exceeds the preset alarm value, the automatic control stops the ash feeding in time, and the computer screen will promptly issue an alarm message to remind the operator to avoid excessive ash in the bin. Through the improvement, the ash feeding efficiency is effectively improved and energy consumption is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall schematic diagram of Example 1;

[0023] Including: 1. Ash storage bin; 2. Material level meter; 3. Main ash conveying pipe; 4. PLC cabinet; 5. Electric valve; 6. Branch ash conveying pipe; 7. Electric control cabinet; 8. Control cable; 9. Cable. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clearly apparent, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] This embodiment provides an automatic dust discharge device for dust removal and dust conveying bin, the structure of which is as follows: Figure 1 As shown, it includes several ash storage bins 1, as well as a material level meter 2, a main ash conveying pipe 3 and a control unit arranged on the ash storage bin 1. The material level meter 2 is directly fixed on the ash storage bin 1 and is used to monitor the ash storage amount in the ash storage bin 1; the main ash conveying pipe 3 is arranged outside the ash storage bin 1 and is connected to each ash storage bin 1, and is used to receive ash for the ash storage bin 1.

[0028] The control unit is connected between the ash storage bin 1 and the main ash conveying pipe 3, as well as to the material level meter 2. It is used to receive information from the material level meter 2 and open or close the main ash conveying pipe 3 to receive ash from the ash storage bin 1. The control unit includes a PLC cabinet 4, and each ash storage bin 1 is connected to the PLC cabinet 4 via a cable 9.

[0029] The control unit includes an electric valve 5. The main ash conveying pipe 3 and each ash storage bin 1 are connected through a branch ash conveying pipe 6. The electric valve 5 is installed on the branch ash conveying pipe 6. The control unit also includes an electric control cabinet 7. The electric control cabinet 7 is connected to each electric valve 5 through a control cable 8.

[0030] The electric control cabinet 7 and the PLC cabinet 4 are connected via a control cable 8 .

[0031] The utility model installs a material level meter 2 on each ash storage bin 1 for detecting the amount of ash stored in the ash bin. By analyzing multiple groups of data collected at the production site, the refining dust removal ash storage bin 1 is divided into three areas: a high ash area, a relatively large area and a relatively small area. The ash storage conditions are also set to three levels: small, medium and large.

[0032] Then modify the PLC control program, cancel the system of timing ash discharge in ash storage bin 1, and implement a new ash discharge method: to achieve the goal of more ash discharge times in areas with more ash and less ash discharge times in areas with less ash.

[0033] For example, if the ash silo inventory is less than 5%, the ash conveying condition will be stopped. The material level meter 2 will transmit the ash content in the silo to the PLC in real time in the form of a signal. The PLC will compare the signal with the set data and transmit it to the computer screen. When the ash content in the silo exceeds the preset alarm value, the ash conveying will be automatically stopped in time, and the computer screen will promptly issue an alarm message to remind the operator to avoid excessive ash in the silo. Through improvements, the ash conveying efficiency is effectively improved and energy consumption is reduced.

[0034] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. An automatic dust discharge device for a dust removal and dust conveying silo, comprising an ash storage silo (1), characterized in that: The ash storage bin (1) is provided with a plurality of ash storage bins, and the device further comprises a A material level meter (2) is directly fixed on the ash storage bin (1) and is used to monitor the amount of ash stored in the ash storage bin (1); A main ash conveying pipe (3) is provided outside the ash storage bin (1), is communicated with each of the ash storage bins (1), and is used to receive ash from the ash storage bins (1); A control unit is connected between the ash storage bin (1) and the main ash conveying pipe (3), as well as to the material level meter (2), and is used to receive information from the material level meter (2) and open or close the main ash conveying pipe (3) to receive ash from the ash storage bin (1).

2. The automatic dust discharge device for dust removal and dust conveying bin according to claim 1, characterized in that: The control unit comprises a PLC cabinet (4), and each of the ash storage bins (1) is connected to the PLC cabinet (4) via a cable (9).

3. The automatic dust discharge device for dust removal and dust conveying bin according to claim 2, characterized in that: The control unit comprises an electric valve (5), the main ash conveying pipe (3) and each ash storage bin (1) are connected via a branch ash conveying pipe (6), and the electric valve (5) is provided on the branch ash conveying pipe (6).

4. The automatic dust discharge device for dust removal and dust conveying bin according to claim 3 is characterized in that: The control unit comprises an electric control cabinet (7), and the electric control cabinet (7) is connected to each of the electric valves (5) via a control cable (8).

5. The automatic dust discharge device for dust removal and dust conveying bin according to claim 4, characterized in that: The electric control cabinet (7) and the PLC cabinet (4) are connected via a control cable (8).

6. The automatic dust discharge device for dust removal and dust conveying bin according to claim 5, characterized in that: The closing condition of the electric valve (5) is that the amount of dust in the ash storage bin (1) is less than 5%.

7. The automatic dust discharge device for dust removal and dust conveying bin according to claim 6, characterized in that: When the electric valve (5) is closed, the PLC cabinet (4) issues an alarm message to alert the operator.

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