Flexible coal slime scattering device and scattering shaft thereof

Abstract

The utility model discloses a flexible coal slime scattering device which comprises a hopper and a scattering shaft, the hopper is provided with a feed port and a vibration grid plate located below the feed port, the scattering shaft is installed at the feed port, the scattering shaft is driven by a driving mechanism to rotate, and the vibration grid plate is arranged on the vibration grid plate. The scattering shaft comprises a shaft body and a plurality of rows of steel wire ropes arranged at intervals in the axial direction of the shaft body, a channel is formed in the shaft body, and water holes communicated with the channel are formed in the shaft body at intervals in the axial direction. The dispersing shaft is mounted at the coal slime conveying hopper, blocky coal slime can be effectively dispersed through the steel wire rope, impurities in the coal slime can be effectively avoided in the running process of the machine, and a proper amount of water can be uniformly sprayed in the dispersing process, so that the coal slime is changed into flowable paste, and the coal slime is uniformly dispersed. The device is suitable for pasty fluid pump pipeline conveying. The low-calorific-value coal power generation can save the fuel cost of each thermal power plant, and realizes cost reduction and efficiency improvement.

Description

Technical Field

[0001] The utility model relates to a flexible coal slime dispersing device and a dispersing shaft thereof, belonging to the technical field of coal slime combustion supply in thermal power stations. Background Art

[0002] With the development of domestic coal slime drying technology, the frame pressure technology has reduced the moisture content of coal slime by about 10% compared with the belt pressure technology. The moisture content of coal slime is between 20-25%, and the physical form of coal slime changes from loose and fluid to non-flowing cake. The belt conveyor system is used for transportation, which is seriously blocked and not suitable for transportation of compressed coal slime. Paste pump pipeline transportation is suitable for paste-like coal slime with a moisture content of about 33-40%. The transportation of compressed coal slime to boiler combustion has become a bottleneck restricting various power plants, especially low calorific value coal power plants. Utility Model Content

[0003] Based on the above, the utility model provides a flexible coal slime breaking device and a breaking shaft thereof to overcome the deficiencies of the prior art.

[0004] The technical solution of the utility model is:

[0005] In a first aspect, the utility model provides a flexible coal slime breaking shaft, comprising a shaft body and a plurality of rows of steel wire ropes spaced apart along the axial direction of the shaft body, a channel is provided inside the shaft body, and water holes communicating with the channel are spaced apart along the axial direction of the shaft body.

[0006] In one example, a fixing plate is provided on the shaft body, and the end of the steel wire rope is fixed to the fixing plate through a fixing member.

[0007] In one example, the fixing member includes a U-shaped seat and a U-shaped bolt, the U-shaped seat is arranged on the fixing plate, the U-shaped bolt passes through the fixing plate, and the steel wire rope is fixed in a channel surrounded by the U-shaped seat and the U-shaped bolt.

[0008] In one example, sleeves are provided on the steel wire rope at intervals along the length direction.

[0009] In the second aspect, the utility model provides a flexible coal slime breaking-up device, comprising a hopper and a breaking-up shaft, wherein the hopper has a feed port and a vibrating grate plate below the feed port, the breaking-up shaft is installed at the feed port, and the breaking-up shaft is driven to rotate by a driving mechanism.

[0010] In one example, it further includes a water source device, a water pipe and a rotating joint, one end of the water pipe is connected to one end of the shaft through the rotating joint, and the other end of the water pipe is connected to the water source device.

[0011] Beneficial effects of the utility model: the utility model can effectively break up the blocky coal slime by installing a breaking shaft at the coal slime conveying hopper through the steel wire rope, and can effectively avoid the debris in the coal slime during the operation of the machine, and can evenly spray an appropriate amount of water during the breaking up process, so that the coal slime becomes a fluid paste, which is suitable for paste pump pipeline transportation. Low calorific value coal power generation can save the fuel cost of each thermal power plant and achieve cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a flexible coal slime breaking device;

[0013] Figure 2 It is a schematic diagram of breaking up the shaft;

[0014] Figure 3 This is the installation structure diagram of the wire rope;

[0015] Figure 4 It is a schematic diagram of a fixing plate, a U-shaped seat and a U-shaped bolt;

[0016] Description of reference numerals:

[0017] 1. Break up the shaft;

[0018] 11 shaft body, 12 steel wire rope, 13 water hole, 14 fixing plate, 15 U-type seat, 16 U-type bolt, 17 sleeve;

[0019] 2 hopper;

[0020] 21 feeding port;

[0021] 22 vibrating grate plate;

[0022] 3. Water pipes;

[0023] 4 swivel joints. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0025] See also Figures 1 to 4, This embodiment is a flexible coal slime breaking device, including a hopper 2, a breaking shaft 1, a water pipe 3, a rotary joint 4 and a water source device. The hopper 2 has a feed port 21 and a vibrating grate plate 22 located below the feed port 21. The breaking shaft 1 is installed at the feed port 21 through a bearing. The breaking shaft 1 is driven to rotate by a driving mechanism. The breaking shaft 1 includes a shaft body 11 and a steel wire rope 12. Multiple rows of steel wire ropes 12 are fixed on the shaft body 11 along the circumferential direction and axial direction of the shaft body 11. Specifically, a fixing plate 14 is welded on the shaft body 11. The steel wire rope 12 is fixed to the fixing plate 14 through a U-shaped seat 15 and a U-shaped bolt 16. The U-shaped seat 15 is placed on the fixing plate 14. The U-shaped bolt 16 is penetrated on the fixing plate 14. The steel wire rope 12 is fixed in a channel surrounded by the U-shaped seat 15 and the U-shaped bolt 16, and the U-shaped bolt 16 is locked by a nut. A channel is provided inside the shaft body 11, and multiple drainage holes 13 connected to the channel are arranged at intervals along the axial direction on the shaft body 11. One end of the water pipe 3 is connected to one end of the shaft body 11 through a rotary joint 4, and the other end of the water pipe 3 is connected to a water source device, so that the water source device can supply water to the shaft body 11 through the water pipe 3 and the rotary joint 4, and spray it out from the water hole 13, thereby realizing humidification during the coal sludge dispersion process, turning the coal sludge into a fluid paste, which is suitable for subsequent paste pump pipeline transportation.

[0026] The working principle of the above-mentioned flexible coal slime breaking device is as follows:

[0027] The coal sludge is caught and placed in the hopper 2 by the mechanical bucket, and the coal sludge is firstly broken up by the steel wire rope 12 of the breaking shaft 1 during rotation, and is wetted by the water sprayed through the water hole 13 during the breaking up process, so that the coal sludge becomes a fluid paste, and is transported by falling from the vibrating grate plate 22. Compared with the prior art, the utility model can effectively break up the blocky coal sludge by installing the breaking shaft 1 at the coal sludge conveying hopper 2 through the steel wire rope 12, and can effectively avoid the sundries in the coal sludge during the operation of the machine, and can evenly spray a proper amount of water during the breaking up process, so that the coal sludge becomes a fluid paste, which is suitable for transportation by the paste pump pipeline.

[0028] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A flexible coal slime breaking shaft, characterized in that: The invention comprises a shaft body (11) and a plurality of rows of steel wire ropes (12) arranged at intervals along the axial direction of the shaft body (11); a channel is provided inside the shaft body (11); and water holes (13) communicating with the channel are arranged at intervals along the axial direction on the shaft body (11).

2. The flexible coal slime breaking shaft according to claim 1, characterized in that: A fixing plate (14) is provided on the shaft body (11), and an end of the steel wire rope (12) is fixed on the fixing plate (14) via a fixing piece.

3. The flexible coal slime breaking shaft according to claim 2, characterized in that: The fixing member comprises a U-shaped seat (15) and a U-shaped bolt (16); the U-shaped seat (15) is arranged on the fixing plate (14); the U-shaped bolt (16) passes through the fixing plate (14); and the steel wire rope (12) is fixed in a channel surrounded by the U-shaped seat (15) and the U-shaped bolt (16).

4. The flexible coal slime breaking shaft according to claim 1, characterized in that: Sleeves (17) are provided on the steel wire rope (12) at intervals along the length direction.

5. A flexible coal slime breaking device, characterized in that: It comprises a hopper (2) and a breaking up shaft (1) as claimed in any one of claims 1 to 4, wherein the hopper (2) has a feed port (21) and a vibrating grate plate (22) located below the feed port (21), and the breaking up shaft (1) is installed at the feed port (21), and the breaking up shaft (1) is driven to rotate by a driving mechanism.

6. The flexible coal slime breaking device according to claim 5, characterized in that: It also comprises a water source device, a water pipe (3) and a rotating joint (4), wherein one end of the water pipe (3) is connected to one end of the shaft (11) via the rotating joint (4), and the other end of the water pipe (3) is connected to the water source device.

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