CN110316482A - A kind of novel blockage-clearing device - Google Patents

Abstract

The invention relates to a new type of blockage removal device, which includes a coal drop bunker, an upper slewing support 1, a lower slewing support 1, a rotary scraper, a coal receiving bunker, a diversion pipe, a discharge arm, an upper slewing support 2 and a lower slewing support 2; The upper slewing support 1 and the lower slewing support 1 are co-located up and down in the coal drop bin, and the rotating scraper is fixedly connected with the bin body between the upper slewing support 1 and the lower slewing support 1; Below the coal bunker, the upper end of the draft pipe is arranged in the coal drop bin, and the bottom of the draft pipe extends vertically downwards to the upper part of the coal receiving bunker, and the discharge arm is horizontally arranged in the coal receiving bunker. The invention avoids clogging and arching phenomena, and can efficiently dredge the clogged materials.

Description

A new type of block removal device

technical field

The invention relates to the field of mechanical equipment, in particular to a novel plug-clearing device.

Background technique

At present, raw coal bunkers configured with direct-blowing pulverization systems are used in large-scale thermal power plants. Due to the different origins of the materials, the content of impurities, and the viscosity are also different. When the materials flow downward in the bin, due to the conical bin body As the size of the cross-section decreases, the extrusion force of the warehouse wall becomes larger and larger, and the originally loose particles are extruded and agglomerated, resulting in agglomeration. When the characteristic size of the agglomeration reaches a certain critical value, blockage will easily occur. Once the coal material is blocked when it descends in the warehouse, the boiler combustion will be unstable in the generator set, causing a large amount of oil to be injected to support the combustion, which will waste a lot of fuel, and more seriously, it will cause the boiler to extinguish the fire and the unit to shut down unplanned.

The existing rotary block cleaning machine is a solution to the above problems, but the existing rotary block cleaning machine sometimes still has uneven feeding and intermittent phenomena during use, and at the same time only using a scraper is often subject to greater resistance and cannot Smoothly unclog the blockage.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention proposes a novel blockage removal device, which can prevent material arching and blockage in the middle and lower parts of the raw coal bunker body, and improve the blockage removal efficiency.

In order to achieve the above object, the present invention proposes a new type of blockage removal device, which includes a coal drop bin, an upper rotary support one, a lower rotary support one, a rotary scraper, a coal bunker, a draft pipe, a discharge arm, an upper rotary support two and Lower slewing support 2; the upper slewing support 1 and the lower slewing support 1 are co-located up and down in the coal drop bin, and the rotating scraper is fixedly connected with the bin body between the upper slewing support 1 and the lower slewing support 1; the coal receiving The bunker is arranged under the coal drop bunker, the upper end of the diversion pipe is set in the coal drop bunker, and the lower part of the guide pipe extends vertically downward to the upper part of the coal receiving bunker, and the discharge arm is horizontally arranged in the coal receiving bunker Inside.

The bin body between the upper slewing support 1 and the lower slewing support 1 is a rotating bin.

The rotary scraper extends up and down along the inner wall of the coal drop bin.

The coal receiving bunker is a hollow cylinder as a whole, and the unloading arm is arranged on the bottom inner wall of the coal receiving bunker, and the unloading arm is connected with the upper slewing support.

The center of the coal receiving bunker coincides with the center of the draft pipe, and the center of the coal receiving bunker is a circular through hole.

The overall shape of the guide tube is a hollow cone.

Beneficial effect

In the present invention, through the upper rotary support 1, the lower rotary support 1 and the rotary scraper, the pulverized coal can avoid the arching phenomenon in the coal falling bunker, and the set coal receiving bunker, guide pipe, discharge arm, upper rotary support 2 and The lower slewing support 2 can smoothly unload the pulverized coal from the coal drop bunker into the coal receiving bunker, and then evenly transport the pulverized coal to the generator set through the unloading arm of the coal receiving bunker, avoiding clogging, and can efficiently remove the clogging material dredging.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The present invention is a new type of blockage removal device, comprising a coal drop bunker 1, an upper rotary support 2, a lower rotary support 4, a rotary scraper 3, a coal receiving bunker 9, a draft pipe 8, a discharge arm 5, and an upper rotary support 2 6 and lower slewing support 2 7; the upper slewing support 2 and lower slewing support 4 are co-located up and down in the coal drop bin 1, and the bin between the rotating scraper 3 and the upper slewing support 2 and the lower slewing support 4 The body is fixedly connected; the coal receiving bunker 9 is arranged under the coal drop bin 1, the upper end of the guide pipe 8 is arranged in the coal drop bin 1, and the bottom of the guide pipe 8 extends vertically downward to the coal receiving bunker 9, the discharge arm 5 is horizontally arranged in the coal receiving bin 9.

The bin body between the upper swivel support one 2 and the lower swivel support one 4 is a rotating bin body.

The rotary scraper 3 extends up and down along the inner wall of the coal drop bin 1 .

The coal receiving bunker 9 is a hollow cylinder as a whole, and the unloading arm 5 is arranged on the bottom inner wall of the coal receiving bunker 9, and the unloading arm 5 is connected with the upper slewing support 6 in cooperation.

The center of the coal receiving bunker 9 coincides with the center of the draft pipe 8, and the center of the coal receiving bunker 9 is a circular through hole.

The guide tube 8 is a hollow cone as a whole.

The slewing support of the present application is the prior art equipment, and the slewing support is all connected with the motor, and the power is provided by the motor. The rotary scraper 3 is fixedly connected to the inner wall of the bin by fixing bolts. When the bin body between the upper slewing support 1 and the lower slewing support 1 rotates, the rotary scraper 3 is driven to rotate, thereby stirring the pulverized coal to avoid arching. The stirred pulverized coal is discharged into the coal receiving bunker 9 through the guide pipe 8, and the unloading arm 5 in the coal receiving bunker 9 is driven by the upper rotary support 2 to make a horizontal circular motion on the bottom inner wall of the coal receiving bunker 9 , so that the pulverized coal is scraped down to the middle of the coal receiving bunker, and then fed into the generator set through the through hole in the middle. In the whole process, it is possible to avoid coal powder arching and improve the conveying efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. A new type of blockage removal device, characterized in that it includes a coal drop bunker, an upper rotary support 1, a lower rotary support 1, a rotary scraper, a coal bunker, a diversion pipe, a discharge arm, an upper rotary support 2 and a lower rotary support Support 2; the upper slewing support 1 and the lower slewing support 1 are arranged up and down in the coal drop bin, and the rotating scraper is fixedly connected with the bin body between the upper slewing support 1 and the lower slewing support 1; the coal receiving bunker cooperates It is arranged under the coal drop bin, the upper end of the guide pipe is set in the coal drop bin, and the bottom of the guide pipe extends vertically downward to the upper part of the coal receiving bunker, and the discharge arm is horizontally arranged in the coal receiving bin. 2. The new blockage removal device according to claim 1, characterized in that: the bin body between the upper slewing support 1 and the lower slewing support 1 is a rotating bin. 3. The new blockage removal device according to claim 2, characterized in that: the rotary scraper extends up and down along the inner wall of the coal drop bunker. 4. The new blockage removal device according to claim 1, characterized in that: the coal receiving bunker is a hollow cylinder as a whole, the unloading arm is cooperatingly arranged at the bottom inner wall of the coal receiving bunker, and the unloading arm and the upper The two slewing supports are matched and connected. 5. The new blockage removal device according to claim 4, characterized in that: the center of the coal receiving bunker coincides with the center of the draft pipe, and the center of the coal receiving bunker is a circular through hole. 6. The new blockage removal device according to claim 5, characterized in that: the overall shape of the guide pipe is a hollow cone.