CN210285572U

CN210285572U - Anti-impact chute

Info

Publication number: CN210285572U
Application number: CN201920815273.XU
Authority: CN
Inventors: 解海波
Original assignee: Beijing Shougang International Engineering Technology Co Ltd
Current assignee: Beijing Shougang International Engineering Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-10
Anticipated expiration: 2029-05-31

Abstract

An anti-impact chute belongs to the technical field of sintered pellet production. Comprises a flange (1), a chute (2) and a poking door (3); the flange (1) adopts a circular structure, the front flange and the rear flange are the same, and the front flange and the rear flange are connected with the upper section chute (2) and the lower section chute (2) through bolts; the chute (2) is cut by adopting a steel pipe with the same size, is divided into 4 sections for welding, and is internally provided with a material grinding material or a lining material so as to reduce the abrasion of the chute, the inclination angle of the chute (2) is 1-2 degrees greater than the static stacking angle of the material, and the tail part of the chute (2) is provided with a horizontal section; the poking door (3) is arranged on the vertical section part at the tail end of the chute (2), and the inner wall of the poking door (3) and the vertical section material facing surface of the chute (2) are welded with stainless steel plates or wear-resistant impact-resistant materials. The device has the advantages that the impact force of the tail end of the high-level material is reduced, the belt damage is reduced, the consumption of internal energy in the material pouring process is increased, the tail end kinetic energy is reduced, and the device is simple and practical in structure; and economic loss is reduced.

Description

Anti-impact chute

Technical Field

The utility model belongs to the technical field of the production of sintered pellet, especially, provide a protecting against shock chute, be applicable to the transportation of material between the high low material level in the sintered pellet production, receive the impact that the material belt received when can reduce the super high altitude and unload, reduce economic loss.

Background

In the production of sintered pellets, the material between adjacent high and low material levels is transported by a chute, which is the best design scheme. The high-level materials have impact force on the receiving belt, and the impact force causes the faults of deviation of the receiving belt, roller damage, material eccentricity, secondary dust raising, belt tearing, motor burnout and the like. The larger the material flow speed at the tail end of the chute is, the larger the impact force is; the higher the material height, the higher the end flow rate. The traditional chute adopts a straight line design, reaches a receiving belt at a large inclination angle and has large impact force. Especially for super high-position unloading, the end impact force is more amazing, and is very big to the belt damage, and the raise dust is also big, and personal safety also becomes the problem under some circumstances.

Disclosure of Invention

An object of the utility model is to provide an impact-proof chute. The problems of large impact force at the tail end, great damage to a belt, large dust emission and the like of ultra-high discharging are solved; reduce the terminal impact force of high-order material, reduce the belt harm.

The utility model discloses a flange 1, elephant trunk 2, disclose material door 3. The flange 1 is of a circular structure, the front flange and the rear flange are the same, and the front flange and the rear flange are connected with the upper chute bolt and the lower chute bolt. The chute 2 is made of steel pipes with the same size, is divided into 4 sections for welding, and is internally provided with material grinding materials or other lining materials so as to reduce the abrasion of the chute, the inclination angle of the chute 2 is 1-2 degrees greater than the static stacking angle of the materials, the static stacking angle is the inherent characteristic of the materials, different materials have different static stacking angles, and the tail part of the chute 2 is provided with a horizontal section. The poking door 3 is arranged on the vertical section part at the tail end of the chute 2, and a stainless steel plate or other wear-resistant impact-resistant materials are welded on the inner wall of the poking door 3 and the vertical section material facing surface of the chute 2. 2-10 sections of chutes are butted up and down and reach the receiving belt from a high-position discharging point, and the connecting angle in the horizontal plane can be adjusted according to requirements.

The utility model has the advantages of reducing the impact force of the tail end of the high-level material, reducing the belt damage, increasing the consumption of the internal energy in the material pouring process, reducing the tail end kinetic energy, and having simple and practical structure; and economic loss is reduced.

Drawings

Figure 1 is a schematic view of a single section chute.

Fig. 2 is a schematic view of a three-section chute connection.

Wherein the reference numbers in figure 1 are respectively represented as: flange 1, elephant trunk 2, disclose the material door 3.

Detailed Description

According to the attached drawing, the steel pipe is divided into four sections and welded into the chute 2, the head end and the tail end of the chute 2 are connected with the circular flange 1, the front flange and the rear flange are the same, and the multiple sections of chutes are convenient to butt with each other. The steel pipe adopts a large-caliber pipe welded by threads in a coil mode, and materials can be transported in a large transport capacity. The inner wall of the chute 2 is respectively paved or welded with stainless steel, cast iron, an oil-containing nylon lining plate, an ultra-high molecular weight polyethylene lining plate, material grinding materials and other wear-resistant linings according to different properties of conveyed materials. The chute can convey small-particle materials such as pulverized coal, coke powder, pellets, fine iron powder, sintered return ores, sintered small-lattice materials, dust removal ash, blast furnace granulated slag and the like. The inclination angle of the single-section chute is more than or equal to the static stacking angle of each material and is generally more than or equal to 45 degrees. The tail end of each single-section chute is provided with a horizontal section, so that the vertical speed of the material terminal is 0, the material terminal is thrown out in a flat manner, and the material terminal impacts the vertical section of the opposite belt lining to decelerate. The poking door 3 is normally closed and is opened during plugging to poke the material.

The multiple sections of chutes are butted, the friction area of the materials is increased, mechanical energy is converted into heat energy, the landing speed is reduced, the purpose of reducing the impact force of the receiving belt is achieved, and the normal operation of the belt is protected. The height of the single-section chute is generally set to be 2 m. Optionally, the connecting angle of the chute at the upper section and the chute at the lower section is adjusted on a horizontal plane.

The same or similar arrangement of basic process principle is in the protection scope of the utility model.

Claims

1. An anti-impact chute is characterized by comprising a flange (1), a chute (2) and a poking door (3); the flange (1) adopts a circular structure, the front flange and the rear flange are the same, and the front flange and the rear flange are connected with the upper section chute (2) and the lower section chute (2) through bolts; abrasive materials or lining materials are arranged in the chute (2), the inclination angle of the chute (2) is 1-2 degrees larger than the static stacking angle of the materials, and the tail part of the chute (2) is provided with a horizontal section; the poking door (3) is arranged on the vertical section part at the tail end of the chute (2), and the inner wall of the poking door (3) and the vertical section material facing surface of the chute (2) are welded with stainless steel plates or wear-resistant impact-resistant materials.