CN202481601U - Rotary raw coal blocking-dredging machine - Google Patents

Abstract

The utility model discloses a rotary raw coal unblocking machine which belongs to the range of raw material conveying equipment for large-scale thermal power stations, coal storage plants and mines. The blockage removal machine is composed of a rotating section, a fixed blockage removal scraper, a sealing device, a mechanical drive device, and a fixed bracket. A rotary rotary bin is installed in the easy-to-block section of the raw coal bunker, and a fixed blockage clearing scraper is arranged inside the rotary rotary bin. Its feature is to use the relative movement of the fixed unblocking scraper installed in the bin and the rotary bin to destroy the foundation of stable arching formed by the raw coal and the bin body, thereby effectively preventing the coal bunker from clogging, and at the same time through the relative mechanical movement force Breaks down stable arches that have formed and unclogs clogged bunkers. It is mainly used for dredging of hyperbolic and conical raw coal bunkers. The utility model for unclogging the coal bunker is applicable to any type of coal and has extensive economic and social benefits.

Description

A rotary raw coal blockage removal machine

technical field

The utility model belongs to the range of raw material conveying equipment for large-scale thermal power stations, coal storage plants and mines, and particularly relates to a rotary raw coal unblocking machine. the

Background technique

At present, in the field of industrial and agricultural production, solid granular material storage bins have been widely used. Especially for short-term storage of raw coal and stone powder, such as raw coal bunkers in thermal power plants, large coal storage bunkers in coal mines, and large storage bins in mines. However, during the process of conveying materials from the storage bin to the next level, blockages frequently occur, which affects the normal and safe operation of the next level of equipment. Take the raw coal bunker of a thermal power plant as an example. During the operation of the unit, once the raw coal bunker is blocked and the fuel supply is insufficient, the unit is forced to reduce the load. A large amount of fuel oil needs to be invested to ensure stable combustion of the boiler. At the same time, due to the no-load operation of the coal mill, unnecessary wear and tear is caused. In severe cases, the boiler will be extinguished, the unit will be forced to shut down unplanned, and it will be disconnected from the power grid. the

For a long time, in order to solve the blockage of the raw coal bunker and make the boiler run safely and stably, scientific research and design units, power plants, etc. have continuously improved the raw coal bunker, but they have not substantially solved the problem of the raw coal bunker blockage. There are many reasons for the blockage of the raw coal bunker, but the root cause is that when refueling the conical raw coal bunker, the granular fuel is subjected to gravity, friction with the raw coal bunker wall, friction between the granular fuel and mutual friction. Factors such as extrusion form a load-bearing structure at the position of the discharge port. At the same time, due to the influence of uncertain factors such as coal quality and climate, the fuel becomes wet and viscous increases, forming a hardened surface and making the discharge port smaller, which eventually leads to coal blockage in the raw coal bunker. Manpower and related protective equipment can hardly prevent blockage at any time. occur. The clogging of raw coal bunkers in power plants and the clogging of similar granular material bunkers have become widespread and common problems. the

Utility model content

The purpose of this utility model is to provide a rotary type raw coal unblocking machine for the blockage of raw coal bunkers in power plants and the blockage of related material bins at any time. The upper end of 1 and the lower end of lower chamber section 8 are respectively fixedly connected with the original chamber section; 1 to 3 pieces of blockage clearing scrapers 9 are arranged inside the rotating chamber section 4; the lower end of upper chamber section 1 and the upper end of rotating chamber section 4 pass through the upper rotary sealing device 2 Connection, the upper end of the lower chamber section 8 is connected with the lower end of the rotating chamber section 4 through the lower rotary sealing device 7; the

The blockage clearing scraper is inside the rotating bin section 4, and its upper and lower ends are respectively fixed on the upper bin section 1) and the lower bin section 2, and fixed without rotating, and not connected with the rotating bin section 4, so that it is connected with the rotating bin section Segment 4 creates relative motion. the

The beneficial effect of the utility model is that a rotary type rotary bin is arranged in the easy-blocking section of the raw coal bunker, and a fixed blockage clearing scraper is arranged inside the rotary type rotary bin. When the coal bunker is blocked, start the rotary unblocking machine, through the relative movement between the rotating rotation and the internally designed and fixed unblocking scraper, remove the raw coal stuck on the inside of the rotary bunker, so that the inside of the rotary bunker will not form coal compaction, At the same time, it also destroys the bearing surface formed at the position of the discharge port when the coal bunker is filled with coal, effectively solving the problem of coal discharge blockage in the raw coal bunker and ensuring the safe operation of lower-level equipment. In order to actually solve the blockage when the raw coal bunker is unloading coal, save manpower and facilitate the operation personnel. the

Description of drawings

Figure 1 is a schematic structural diagram of a rotary raw coal unblocking machine. the

Fig. 2 is a sectional view of the rotary raw coal unblocking machine. the

Detailed ways

The utility model provides a rotary raw coal unblocking machine. Below in conjunction with accompanying drawing, the utility model is described in further detail. the

Figure 1 shows the schematic diagram of the principle structure of the rotary raw coal unblocking machine. First, the easy-blocking section of the raw coal bunker is removed, leaving the position of the rotary raw coal unblocking machine. The integral coal bin of the rotary raw coal unblocking machine is fixedly supported by the bracket 3, and the upper end of the upper bin section 1 and the lower end of the lower bin section 8 are fixedly connected with the original bin section respectively; Describe the blockage removal scraper 9, its upper and lower ends are respectively fixed on the upper storehouse section 1) and the lower storehouse section 8, and it is fixed and does not rotate, and is not connected with the rotary storehouse section 4, so that it forms relative motion with the rotary storehouse section 4 ( As shown in Figure 2); the lower end of the upper warehouse section 1 is connected with the upper end of the rotating warehouse section 4 through the upper rotary sealing device 2, and the upper end of the lower warehouse section 8 is connected with the lower end of the rotating warehouse section 4 through the lower rotating sealing device 7; the middle part of the rotating warehouse section 4 The rotating gear 5 is fixed, and the rotating gear 5 meshes with the driving device 6 to make the rotating bin section 4 rotate. The relative movement between the above-mentioned fixed clearing scraper 9 and the rotating rotary bin section 4 prevents arching and blockage of the raw coal bunker, and at the same time can dredge the blocked bin section after the arching blockage, so as to ensure that the raw coal bunker is generally unimpeded in coal discharge . Ensure that the coal bunker does not bear load and deform, and the normal operation of the rotating section. the

The above description is only a preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, improvements can also be made, and the above-mentioned specific embodiments can also be improved. Combining these improvements and the technical solutions formed by the combination are also regarded as the protection scope of the present utility model. the

Claims (2)

1. a swinging raw coal is dredged stifled machine, it is characterized in that, whole coal bunker is through support (3) fixed pedestal, and captive joint with former storehouse section respectively in last storehouse section (1) upper end, following storehouse section (8) lower end, rotation storehouse section (4) 1～3 block clearing scraper plate of internal placement (9); Last storehouse section (1) lower end and rotation storehouse section (4) upper end through last rotary sealing appts (2) is connected, down storehouse section (8) upper end through under rotary sealing appts (7) with rotate storehouse section (4) lower end and be connected; Rotation storehouse section (4) middle part is arm revolving gear (5) fixedly, and arm revolving gear (5) and actuating device (6) engagement make rotation storehouse section (4) rotation.

2. dredge stifled machine according to the said swinging raw coal of claim 1; It is characterized in that; Said block clearing scraper plate is in rotation storehouse section (4), and it is individually fixed on storehouse section (1) and the following storehouse section (2) at two ends up and down, and fixes and do not rotate; Be not connected, make it and rotate storehouse section (4) to form relative motion with rotation storehouse section (4).

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