Sorting equipment for ash silo

Abstract

The utility model discloses sorting equipment for an ash silo. The sorting equipment comprises a bottom plate, a main sorting tank and an auxiliary tank, wherein the main sorting tank is fixedly mounted at the top of the bottom plate; and the auxiliary tank is connected and mounted outside the main sorting tank by a circle. A driving mechanism is fixedly installed at the bottom of the main sorting tank, a spiral sorting shell driven by the driving mechanism is installed in the main sorting tank, a main air pipe and a connecting air pipe are installed on the top of the main sorting tank and the top of the auxiliary tank in a penetrating mode respectively, and the main sorting tank and the auxiliary tank are installed in a penetrating mode through a material guiding shell. Separation can be conveniently carried out inside and outside the spiral separation shell according to different centrifugal forces caused by different weights of coarse and fine coal ash particles, and the separation effect on the coal ash is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fly ash treatment, and particularly relates to a separation device for an ash silo. Background Art

[0002] Fly ash, commonly known as flue ash, refers to the fine ash captured from the flue gas after coal combustion and is the main solid waste discharged from coal-fired power plants.

[0003] Fly ash usually appears gray or grayish-black. The main oxide components of fly ash are SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc. Fly ash is widely used in building materials such as cement, mortar, and concrete. In construction enterprises, using fly ash as a raw material can reduce the raw material cost for the enterprise. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if discharged into water systems, it will cause river siltation, and the toxic chemical substances in it will also harm humans and organisms. However, fly ash can be resourcefully utilized, such as being used as an admixture for concrete.

[0004] The utility model patent with domestic application number 202222027714.4 discloses a fly ash separation and sampling cyclone centrifugal device, which includes an original ash silo, a coarse ash silo, a fine ash silo, a separator, a cyclone separator, and a centrifugal fan; the outlet of the centrifugal fan is connected to the main pipeline of the system, the main pipeline of the system is sequentially connected to the feeding pipe of the original ash silo and the inlet of the separator, the outlet of the separator is connected to the inlet of the cyclone separator, and the outlet of the cyclone separator is connected to the inlet of the centrifugal fan through a pipeline to form a cycle; the coarse ash collected by the separator can fall into the coarse ash silo, the cyclone separator is connected with a fine ash collection pipeline, the fine ash collection pipeline extends into the fine ash silo and a ash sample collector is arranged at the end, electromagnetic discharge valves and electromagnetic feeding valves are sequentially arranged on the fine ash collection pipeline, an air inlet pipe is communicated with the fine ash collection pipeline between the electromagnetic discharge valve and the electromagnetic feeding valve, and an air inlet solenoid valve is arranged on the air inlet pipe, which can well sample the fine ash. The above utility model patent forms a cycle by connecting the outlet of the cyclone separator to the inlet of the centrifugal fan through a pipeline to separate fly ash. The principle of the cyclone separator is the rotational motion caused by the tangential introduction of the airflow, which separates solid particles or droplets with a large inertial centrifugal force to the outer wall surface. Only by using the rotational motion of a single airflow for separation, it is easy to cause the situation that fine ash is mixed in the coarse ash, resulting in poor separation completeness and reducing the screening effect. Content of the Utility Model

[0005] To solve the above technical problems, the present utility model provides a sorting device for a ash silo, which includes a bottom plate, a main sorting tank fixedly installed on the top of the bottom plate, and an auxiliary tank connected and installed around the outside of the main sorting tank. A driving mechanism is fixedly installed at the bottom of the main sorting tank, a spiral sorting housing driven by the driving mechanism is installed inside the main sorting tank, a main air duct and a connecting air duct are respectively installed through the tops of the main sorting tank and the auxiliary tank, and the main sorting tank and the auxiliary tank are installed through a guiding material housing.

[0006] The spiral sorting housing and the cylindrical sorting housing are driven by the driving mechanism to rotate as a whole, and then under the airflow conveyed by the main air duct, the effect of swirling the airflow is achieved to sort the fly ash.

[0007] As a further preferred technical solution of the present utility model; discharge ports and discharge pipes are respectively provided through one side of the bottoms of the main sorting tank and the auxiliary tank, a material distribution cavity is provided inside the guiding material housing, and the bottoms of the main sorting tank and the auxiliary tank are fixedly installed on the bottom plate through mounting frames and support frames respectively.

[0008] During the sorting process, the fine ash is discharged into the auxiliary tank through the material distribution cavity for storage to achieve the sorting effect.

[0009] As a further preferred technical solution of the present utility model; the guiding material housing and the material distribution cavity are arranged to incline downwards.

[0010] Once the fine ash is sorted by the spiral sorting housing into the auxiliary tank, it cannot return to the main sorting tank through the material distribution cavity again, thus avoiding the situation of secondary sorting of the already sorted fine ash and improving the sorting efficiency of the sorting device for fly ash.

[0011] As a further preferred technical solution of the present utility model; a screening housing is fixedly installed inside the auxiliary tank, and a plurality of groups of screening holes are provided on the screening housing.

[0012] The fine ash is secondarily screened through the screening holes provided on the screening housing to ensure the screening effect on the fly ash.

[0013] As a further preferred technical solution of the present utility model; a cylindrical sorting housing is connected and installed at the top of the spiral sorting housing, sorting mesh plates are provided on both the spiral sorting housing and the cylindrical sorting housing, a feeding port is provided at the top of the cylindrical sorting housing, two welding rods are welded and installed at the bottom of the cylindrical sorting housing, and an auxiliary block is welded and installed between the welding rods. A connecting block is installed at the bottom of the spiral sorting housing, and the connecting block and the auxiliary block are connected and installed through a fixing rod.

[0014] Through the settings of the spiral separation housing and the cylindrical separation housing, the airflow inside the main separation tank is disrupted. Under the effect of achieving a cyclone airflow, the fly ash inside the feed opening is rotated, thereby ensuring the completeness of the separation of fly ash particles, and thus ensuring the completeness of separation, and avoiding the incomplete separation caused by repeated accumulation between particles. The threaded setting of the spiral separation housing facilitates the separation inside and outside the spiral separation housing according to the different centrifugal forces caused by the different weights of coarse and fine coal ash particles, improving the separation effect of fly ash.

[0015] As a further preferred technical solution of the present utility model; an installation plate is fixedly installed at the top of the main separation tank, the main air duct passes through the installation plate, and the bottom of the installation plate is rotatably connected to the cylindrical separation housing through a rotating bearing disc. A feed port is installed through the installation plate between the main air ducts.

[0016] Fly ash is introduced into the spiral separation housing inside the main separation tank through the feed port. Under the airflow conveyed by the main air duct, along with the rotation of the spiral separation housing and the cylindrical separation housing, the separation effect of fly ash is achieved.

[0017] As a further preferred technical solution of the present utility model; the driving mechanism includes an installation box fixedly installed at the bottom of the main separation tank and a driving motor fixedly installed inside the installation box. The output end of the driving motor passes through the main separation tank and is connected and installed to the fixed rod through a driving shaft.

[0018] By connecting and installing the output end of the driving motor to the driving shaft, the fixed rod is driven to rotate by the driving shaft, thereby driving the entire spiral separation housing and the cylindrical separation housing to rotate, achieving the effect of swirling the airflow. At the same time, the centrifugal force generated by the rotation assists the airflow to separate the fly ash.

[0019] Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. Through the settings of the spiral separation housing and the cylindrical separation housing, the airflow inside the main separation tank is disrupted. Under the effect of achieving a cyclone airflow, the fly ash inside the feed opening is rotated, thereby ensuring the completeness of the separation of fly ash particles, and thus ensuring the completeness of separation, and avoiding the incomplete separation caused by repeated accumulation between particles. The threaded setting of the spiral separation housing facilitates the separation inside and outside the spiral separation housing according to the different centrifugal forces caused by the different weights of coarse and fine coal ash particles, improving the separation effect of fly ash.

[0022] 2. The material guiding housing and the material distribution chamber are arranged obliquely downward. Once the fine ash is sorted by the spiral sorting housing into the auxiliary tank, it cannot return to the main sorting tank through the material distribution chamber again, thus avoiding the situation of secondary sorting of the already sorted fine ash and improving the sorting efficiency of the sorting equipment for fly ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0025] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0026] Figure 4 is Figure 2 an enlarged structural diagram of part B in

[0027] Figure 5 is Figure 2 an enlarged structural diagram of part C in

[0028] Figure 6 is a schematic connection structural diagram of the cylindrical sorting housing of the present utility model.

[0029] In the figure: 1. Bottom plate; 2. Main sorting tank; 21. Discharge port; 22. Feeding port; 23. Mounting plate; 24. Main air duct; 25. Mounting frame; 26. Material guiding housing; 27. Material distribution chamber; 3. Auxiliary tank; 31. Support frame; 32. Connecting air duct; 33. Screening housing; 34. Screening holes; 35. Discharge pipe; 4. Driving mechanism; 41. Mounting box; 42. Driving motor; 43. Driving shaft; 5. Spiral sorting housing; 51. Sorting mesh plate; 52. Connecting block; 53. Fixed rod; 54. Cylindrical sorting housing; 55. Rotating bearing plate; 56. Auxiliary block; 57. Welding rod; 58. Feeding opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] This specific embodiment is a sorting device for an ash silo.

[0031] The above-mentioned utility model patent is connected from the outlet of the cyclone separator to the inlet of the centrifugal fan through a pipeline to form a cycle for sorting fly ash. The principle of the cyclone separator is the rotational movement caused by the tangential introduction of the air flow, which separates solid particles or liquid droplets with a large inertial centrifugal force to the outer wall surface. Sorting is carried out only through the rotational movement of a single air flow, which easily causes fine ash to be mixed in the coarse ash, resulting in a poor sorting completeness and reducing the screening effect.

[0032] Its structural schematic diagram is as shown in Figures 1 - 3As shown in the figure. A sorting device for a fly ash silo includes a bottom plate 1 and a main sorting tank 2 fixedly installed on the top of the bottom plate 1. An outlet 21 and a discharge pipe 35 are respectively provided in a penetrating manner on one side of the bottom of the main sorting tank 2 and the auxiliary tank 3. A material distribution cavity 27 is arranged inside the material guiding housing 26. The bottom of the main sorting tank 2 and the bottom of the auxiliary tank 3 are respectively fixedly installed on the bottom plate 1 through a mounting frame 25 and a support frame 31. During the sorting process, fine ash is discharged into the auxiliary tank 3 through the material distribution cavity 27 for storage to achieve the sorting effect. The material guiding housing 26 and the material distribution cavity 27 are arranged obliquely downward. Once the fine ash is sorted into the auxiliary tank 3 by the spiral sorting housing 5, it cannot return to the main sorting tank 2 through the material distribution cavity 27 again, thus avoiding the situation of secondary sorting of the sorted fine ash and improving the sorting efficiency of the sorting device for fly ash.

[0033] The schematic diagram of its structure is as Figures 4 - 6 shown in the figure. It also includes an auxiliary tank 3 connected and installed around the outside of the main sorting tank 2. A screening housing 33 is fixedly installed inside the auxiliary tank 3, and a plurality of groups of screening holes 34 are provided on the screening housing 33. Through the screening holes 34 provided on the screening housing 33, the fine ash is screened twice to ensure the screening effect on fly ash. A driving mechanism 4 is fixedly installed at the bottom of the main sorting tank 2. The top of the spiral sorting housing 5 is connected and installed with a cylindrical sorting housing 54, and sorting mesh plates 51 are provided on both the spiral sorting housing 5 and the cylindrical sorting housing 54. A feeding port 58 is provided at the top of the cylindrical sorting housing 54. Two welding rods 57 are welded and installed at the bottom of the cylindrical sorting housing 54, and an auxiliary block 56 is welded and installed between the welding rods 57. A connecting block 52 is installed at the bottom of the spiral sorting housing 5, and the connecting block 52 and the auxiliary block 56 are connected and installed through a fixing rod 53. Through the arrangement of the spiral sorting housing 5 and the cylindrical sorting housing 54, the air flow inside the main sorting tank 2 is disrupted. Under the effect of achieving a cyclone air flow, the fly ash inside the feeding port 58 rotates, thus ensuring the completeness of the separation of fly ash particles, ensuring the completeness of sorting, and avoiding the situation of incomplete sorting caused by repeated stacking between particles. The threaded setting of the spiral sorting housing 5 facilitates the separation inside and outside the spiral sorting housing 5 according to the different centrifugal forces caused by the different weights of coarse and fine coal ash particles, improving the sorting effect on fly ash.

[0034] At the tops of the main sorting tank 2 and the auxiliary tank 3, a main air duct 24 and a connecting air duct 32 are respectively installed through. The main sorting tank 2 and the auxiliary tank 3 are installed through by a feeding housing 26. At the top of the main sorting tank 2, a mounting plate 23 is fixedly installed. The main air duct 24 is installed through the mounting plate 23. Between the bottom of the mounting plate 23 and the cylindrical sorting housing 54, they are rotationally connected by a rotating bearing disc 55. A feeding port 22 is installed through on the mounting plate 23 between the main air ducts 24. Fly ash is introduced into the spiral sorting housing 5 inside the main sorting tank 2 through the feeding port 22. Under the airflow conveyed by the main air duct 24, along with the rotation of the spiral sorting housing 5 and the cylindrical sorting housing 54, the sorting effect of fly ash is achieved. The driving mechanism 4 includes a mounting box 41 fixedly installed at the bottom of the main sorting tank 2 and a driving motor 42 fixedly installed inside the mounting box 41. The output end of the driving motor 42 passes through the main sorting tank 2 and is connected and installed with a fixed rod 53 through a driving shaft 43. Through the connection and installation of the output end of the driving motor 42 and the driving shaft 43, the fixed rod 53 is driven to rotate by the driving shaft 43, thereby driving the spiral sorting housing 5 and the cylindrical sorting housing 54 to rotate as a whole, achieving the effect of swirling the airflow. At the same time, the centrifugal force generated by the rotation assists the airflow to sort the fly ash. Inside the main sorting tank 2, a spiral sorting housing 5 driven by the driving mechanism 4 is installed.

[0035] By starting the driving motor 42, the fixed rod 53 is driven to rotate by the driving shaft 43, thereby driving the spiral sorting housing 5 and the cylindrical sorting housing 54 to rotate as a whole. Then, under the airflow conveyed by the main air duct 24, the effect of swirling the airflow is achieved; the fly ash is poured into the feeding port 22 and introduced into the spiral sorting housing 5 inside the main sorting tank 2. Along with the rotation of the spiral sorting housing 5 and the cylindrical sorting housing 54, the centrifugal force generated by the rotation assists the airflow to sort the fly ash, achieving the sorting effect of fly ash.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A sorting device for a ash bunker, characterized in that, It includes a bottom plate (1), a main sorting tank (2) fixedly installed on the top of the bottom plate (1), and an auxiliary tank (3) connected and installed around the outside of the main sorting tank (2). A driving mechanism (4) is fixedly installed at the bottom of the main sorting tank (2). A spiral sorting housing (5) driven by the driving mechanism (4) is installed inside the main sorting tank (2). A main air duct (24) and a connecting air duct (32) are respectively installed through the tops of the main sorting tank (2) and the auxiliary tank (3). The main sorting tank (2) and the auxiliary tank (3) are installed through a guide material housing (26).

2. The sorting device for a gray storage bin according to claim 1, wherein: An outlet (21) and a discharge pipe (35) are respectively provided through one side of the bottoms of the main sorting tank (2) and the auxiliary tank (3). A material distribution cavity (27) is provided inside the guide material housing (26). The bottom of the main sorting tank (2) and the bottom of the auxiliary tank (3) are respectively fixedly installed on the bottom plate (1) through a mounting frame (25) and a support frame (31).

3. The sorting device for a gray storage bin according to claim 2, characterized in that: The guide material housing (26) and the material distribution cavity (27) are arranged obliquely downward.

4. The sorting device for a gray storage bin according to claim 3, characterized in that: A screening housing (33) is fixedly installed inside the auxiliary tank (3), and a plurality of groups of screening holes (34) are provided on the screening housing (33).

5. The sorting device for a ash bunker according to claim 4, characterized in that: A cylindrical sorting housing (54) is connected and installed at the top of the spiral sorting housing (5). Sorting mesh plates (51) are provided on both the spiral sorting housing (5) and the cylindrical sorting housing (54). A feeding port (58) is provided at the top of the cylindrical sorting housing (54). Two welding rods (57) are welded and installed at the bottom of the cylindrical sorting housing (54), and an auxiliary block (56) is welded and installed between the welding rods (57). A connecting block (52) is installed at the bottom of the spiral sorting housing (5), and the connecting block (52) and the auxiliary block (56) are connected and installed through a fixing rod (53).

6. The sorting device for ash silo according to claim 5, wherein: An installation plate (23) is fixedly installed at the top of the main sorting tank (2). The main air duct (24) is arranged through the installation plate (23). The bottom of the installation plate (23) and the cylindrical sorting housing (54) are rotationally connected through a rotating bearing disc (55). A feeding port (22) is installed through the main air duct (24) on the installation plate (23).

7. The sorting device for a ash bunker according to claim 6, wherein: The driving mechanism (4) includes an installation box (41) fixedly installed at the bottom of the main sorting tank (2) and a driving motor (42) fixedly installed inside the installation box (41). The output end of the driving motor (42) is connected and installed with the fixing rod (53) through a driving shaft (43) after passing through the main sorting tank (2).

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