A boiler ash handling system

Abstract

The utility model relates to a boiler ash conveying technical field discloses a kind of boiler ash conveying system, including multiple ash conveying units, multiple ash conveying units are arranged side by side;Ash conveying unit includes multiple hoppers, the bottom of hopper is connected with the feed end of bin pump by pipeline assembly, the discharge end of multiple bin pumps is connected with discharge pipe respectively;The number of level gauge is multiple, multiple level gauges are respectively arranged on hopper, bin pump.By the level gauge of being set, the material level in hopper and bin pump can be measured, so that the material level in hopper and bin pump is always in reasonable range, avoid the phenomenon of pipeline ash deposition that easily appears due to excessive ash material accumulated in hopper and bin pump, also avoid the phenomenon of compressed air air blowing that appears due to less ash amount in hopper and bin pump, not only energy is saved, but also effectively prevent the serious wear of pipeline caused by dilute phase ash conveying.

Description

Technical Field

[0001] This utility model relates to the field of boiler ash conveying technology, and in particular to a boiler ash conveying system. Background Technology

[0002] The boiler ash conveying system is a critical system in coal-fired power plants, industrial boilers, and other equipment used for collecting and transporting ash and slag. Its operational stability directly affects the safety and efficiency of the entire boiler system. Currently, most common ash conveying systems adopt the pneumatic ash conveying method using silo pumps, which uses compressed air to transport ash from the ash hopper to the ash silo.

[0003] However, existing boiler ash conveying systems still suffer from problems in actual operation, such as excessive ash accumulation leading to pipe blockage, insufficient ash causing compressed air to blow dry, and severe pipe wear caused by dilute phase ash conveying. Therefore, it is necessary to design a boiler ash conveying system to solve the aforementioned problems of the existing technology. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a boiler ash conveying system to solve the problems existing in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] This utility model provides a boiler ash conveying system, including:

[0007] Multiple ash conveying units are arranged in parallel.

[0008] The ash conveying unit includes:

[0009] Multiple ash hoppers, the bottom of which is connected to the inlet end of a silo pump via a pipeline assembly, and the outlet ends of the multiple silo pumps are respectively connected to an outlet pipe;

[0010] The material level gauges are multiple, and the multiple material level gauges are respectively installed on the ash hopper and the silo pump.

[0011] Furthermore, the piping assembly includes a manual valve connected to the bottom of the ash hopper, the manual valve being connected to an automatic valve via a connecting pipe, and the automatic valve being connected to the feed end of the silo pump.

[0012] Furthermore, it also includes a control device, with the level gauge, the automatic valve, and the silo pump electrically connected to the control device.

[0013] Furthermore, the control device includes a control cabinet, inside which is a controller, and the level gauge, the automatic valve, and the silo pump are electrically connected to the controller.

[0014] Furthermore, the level gauge is configured as a continuous level gauge.

[0015] Furthermore, a discharge valve is provided on the discharge pipe.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] By setting up level gauges, the material level in the ash hopper and silo pump can be measured, ensuring that the material level in the ash hopper and silo pump is always within a reasonable range. This avoids the phenomenon of pipe blockage caused by excessive ash accumulation in the ash hopper and silo pump, and also avoids the phenomenon of compressed air blowing due to insufficient ash in the ash hopper and silo pump. This not only saves energy, but also effectively prevents severe pipe wear caused by dilute phase ash conveying. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the boiler ash conveying system of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Ash conveying unit; 11. Ash hopper; 12. Piping assembly; 121. Manual valve; 122. Connecting pipe; 123. Automatic valve; 13. Silo pump; 14. Discharge pipe; 15. Level gauge; 16. Discharge valve. Detailed Implementation

[0021] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 As shown, this embodiment discloses a boiler ash conveying system, including multiple ash conveying units 1 arranged in parallel; each ash conveying unit 1 includes multiple ash hoppers 11, the bottom of which is connected to the inlet end of a silo pump 13 via a pipeline assembly 12, and the outlet ends of the multiple silo pumps 13 are respectively connected to outlet pipes 14; there are multiple level gauges 15, which are respectively installed on the ash hoppers 11 and the silo pumps 13.

[0023] In this embodiment, the ash conveying system of each boiler includes two ash conveying units 1, and each ash conveying unit 1 includes five ash hoppers 11. The two ash hoppers 11 on the left are used to receive ash from the electrostatic precipitator, and the other three ash hoppers 11 are used to receive ash from the bag filter. A hopper pump 13 is installed below each ash hopper 11, which can convey the ash in the corresponding ash hopper 11. A level gauge 15 is used to measure the material level in the ash hopper 11 and the hopper pump 13. The level gauge 15 can be set as a continuous level gauge 15. A discharge valve 16 is installed on the discharge pipe 14. When the discharge valve 16 is open, the material can be discharged normally.

[0024] By adopting this scheme, the material level in the ash hopper 11 and the silo pump 13 can be measured through the material level gauge 15, so that the material level in the ash hopper 11 and the silo pump 13 is always within a reasonable range. This avoids the phenomenon of pipe blockage caused by excessive ash accumulation in the ash hopper 11 and the silo pump 13, and also avoids the phenomenon of compressed air blowing due to insufficient ash in the ash hopper 11 and the silo pump 13. This not only saves energy, but also effectively prevents severe pipe wear caused by dilute phase ash conveying.

[0025] Further optimization of the scheme: the pipeline assembly 12 includes a manual valve 121 connected to the bottom of the ash hopper 11. The manual valve 121 is connected to an automatic valve 123 through a connecting pipe 122. The automatic valve 123 is connected to the feed end of the silo pump 13.

[0026] In this embodiment, under normal circumstances, the manual valve 121 is in the normally open state; when maintenance or repair is required, the manual valve 121 can be closed; when the ash in the ash hopper 11 does not need to be conveyed, the automatic valve 123 is in the closed state; when the ash in a certain ash hopper 11 needs to be conveyed, the corresponding automatic valve 123 opens. Through the configuration of the manual valve 121 and the automatic valve 123, this invention can meet both maintenance needs and the need for individual ash conveying in a specific ash hopper 11.

[0027] Further optimization of the scheme also includes a control device, with the level gauge 15, automatic valve 123, and silo pump 13 electrically connected to the control device.

[0028] In this embodiment, the control device includes a control cabinet, inside which is a controller. The level gauge 15, the automatic valve 123, and the silo pump 13 are electrically connected to the controller.

[0029] Specifically, each ash conveying unit 1 is equipped with a control cabinet. The material level in the ash hopper 11 and the silo pump 13 is measured by the level gauge 15, and the measured result is transmitted to the controller in the form of a signal. The controller receives the signal and controls the corresponding automatic valve 123 and silo pump 13 to open and close. In addition, the discharge valve 16 can also be set as an automatic valve, and the controller can control the opening and closing of the discharge valve 16.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A boiler ash conveying system, characterized in that: include: Multiple ash conveying units (1) are arranged side by side; The ash conveying unit (1) includes: Multiple ash hoppers (11) are provided, the bottom of which is connected to the feed end of a silo pump (13) via a pipeline assembly (12), and the discharge ends of the multiple silo pumps (13) are respectively connected to discharge pipes (14). Level gauge (15), there are multiple level gauges (15), and multiple level gauges (15) are respectively installed on the ash hopper (11) and the silo pump (13).

2. The boiler ash conveying system according to claim 1, characterized in that: The pipeline assembly (12) includes a manual valve (121) connected to the bottom of the ash hopper (11), the manual valve (121) being connected to an automatic valve (123) via a connecting pipe (122), and the automatic valve (123) being connected to the feed end of the silo pump (13).

3. The boiler ash conveying system according to claim 2, characterized in that: It also includes a control device, wherein the level gauge (15), the automatic valve (123), and the silo pump (13) are electrically connected to the control device.

4. The boiler ash conveying system according to claim 3, characterized in that: The control device includes a control cabinet, and the control cabinet is equipped with a controller. The level gauge (15), the automatic valve (123), and the silo pump (13) are electrically connected to the controller.

5. The boiler ash conveying system according to claim 1, characterized in that: The level gauge (15) is configured as a continuous level gauge (15).

6. The boiler ash conveying system according to claim 1, characterized in that: A discharge valve (16) is provided on the discharge pipe (14).

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