Anti-blockage raw coal cabin

The technology of raw coal bunker and bunker wall is applied in the field of raw coal bunker with anti-blocking function, which can solve the problems of coal cut off, poor coal feeding, and failure of the pulverizing system to work normally, and achieve the effect of eliminating blockage and good vibration effect.

Inactive Publication Date: 2012-04-25
WISDRI ENG & RES INC LTD
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AI-Extracted Technical Summary

Problems solved by technology

The silo with a symmetrical structure, when the material is stored in the silo to a certain amount during the falling process, due to the pressure of the silo, the viscosity between the raw coal, and the balance force of accumulation, the lower part of the raw coal silo is prone to Phenomena such as hardening and arching will cause poor coal feeding, and in severe cases, it will cause coal breakage, cause the system to shut down, and make the pulverizing system unable to work normally
Due to the spontaneous combustion characteristics of coal, coal blocking can easily cause safety hazard...
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Method used

Grasp the raw coal material level situation for the convenience of operator, be provided with raw coal bunker support structure 9 on the round platform section 2, raw coal bunker is supported on the platform 12 by electronic scale, electronic scale fulcrum passes cylinder section 1 hopper wall 8, stressed Reasonable, the raw coal material level is measured by the weighing method, and the material level measurement is reliable.
[0018] The eccentric circular platform section 3 is ...
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Abstract

The invention discloses an anti-blockage raw coal cabin, which consists of a straight tube section, a round table section, an eccentric round table section and a movable section, wherein the round table section and the eccentric round table section are respectively connected under the straight tube section, the eccentric round table section is in an asymmetrical structure, the eccentric round table section and the movable section are movably connected through a lifting chain, and a vibration motor is arranged on the outer wall of the movable section. The asymmetrical structure is adopted at the eccentric round table section for realizing the arch breaking through damaging the accumulated balance force of materials, and the arch forming prevention effect is good. The lower part of the eccentric round table section is sheathed into the movable section, the raw coal leakage during the vibration is prevented, and the environment protection requirement is met. The movable section is connected with the eccentric round table section through a short lifting annular chain, and the flexibility is good. The vibration motor is arranged on the movable section, when a material cabin is blocked, the vibration motor is started, the movable section and the fixed section at the upper part are staggered, the vibration effect is good, and the material cabin blockage phenomenon is effectively eliminated.

Application Domain

Technology Topic

CoalRound table +3

Image

  • Anti-blockage raw coal cabin
  • Anti-blockage raw coal cabin

Examples

  • Experimental program(1)

Example Embodiment

[0016] The present invention will be further described in detail below in conjunction with the drawings. Such as figure 1 As shown, the present invention discloses an anti-blocking raw coal bunker, which is composed of a straight cylinder section 1, a circular platform section 2, an eccentric circular platform section 3, and a movable section 7. The straight cylinder section 1, the circular platform section 2, the eccentric circular platform section 3, and the movable section 7 are all made of steel plate. The frustum section 2 and the eccentric frustum section 3 connected under the straight tube section 1 are connected by welding. The eccentric frustum section 3 is an asymmetric structure, and the angle α between the eccentric frustum section and the horizontal plane is not less than 65°. The angle β between the section wall 11 and the horizontal plane is 90°. The eccentric distance d of the eccentric frustum section 3 is not less than 30% of the radius φ on the eccentric frustum section. The asymmetric structure is adopted in the lower part of the raw coal bunker which is easy to block coal, so that when the raw coal is piled in the lower part, the supporting reaction force generated by the material is difficult to balance and automatically breaks the arch, preventing it from forming a blockage. The eccentric circular platform section 3 and the movable section 7 are connected by a short loop chain 5 for lifting. The outer wall of the movable section 7 is equipped with a vibrating motor. If a blockage occurs, the vibrating motor will start to cause a misalignment between the movable section and the fixed section above. The asymmetry of the angle of vibration wave transmission is also very effective in destroying the balance of material accumulation. Obviously, it can effectively eliminate the blockage of the silo.
[0017] The straight section 1 receives the raw coal added from the outside, the lower part of which is a tapered truncated section 2, and the truncated section 2 is provided with a raw coal bunker support structure 9. The angle α between the truncated silo wall 10 and the horizontal plane is not less than 65°.
[0018] The upper lifting lug 4 is welded on the eccentric circular platform section 3, and the lower lifting lug 6 is welded on the movable section 7. The movable section 7 is connected with the eccentric circular platform section 3 through a short lifting chain 5, which has good flexibility.
[0019] The lower part of the eccentric circular platform section 3 is sleeved into the movable section 7 to a certain depth to prevent the leakage of raw coal during vibration to meet environmental protection requirements.
[0020] In order to facilitate the operator to grasp the raw coal level, a raw coal bunker support structure 9 is provided on the round platform section 2. The raw coal bunker is supported on the platform 12 by an electronic scale. The electronic scale fulcrum passes through the cylinder section 1 hopper wall 8, and the force is reasonable. The raw coal level is measured by the weighing method, and the level measurement is reliable.
[0021] In summary, the present invention has a simple structure and is convenient to manufacture. Through the dual effects of the eccentric structure of the multi-stage bin and the external vibration, it can effectively prevent coal blocking.
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Description & Claims & Application Information

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