Coal blockage-proof feeding pipe apparatus for coal storage eurosilo

Abstract

A coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo includes a central telescopic feeding pipe, a coal blockage-proof feeding pipe, and a feeding pipe mounting base connected. A middle part of a first section of round pipes of the central telescopic feeding pipe is of a conical pipe structure with a smaller upper part and a larger lower part; the first section of round pipes is connected to an upper end of the coal blockage-proof feeding pipe; a dust return plate is arranged inside the coal blockage-proof feeding pipe to guide dust-laden gas, generated at a coal falling point below and ascending along a pipe wall, downward, preventing the dust-laden gas from ascending along a cylinder wall into gaps among round pipe walls of the central 10 telescopic feeding pipe. The coal blockage-proof feeding pipe has an exhaust port to discharge the internal dust-laden gas to the outside.

What is claimed is: 
     
         1 . A coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo, comprising a central telescopic feeding pipe, a coal blockage-proof feeding pipe, and a feeding pipe mounting base connected in sequence, wherein a middle part of a first section of round pipes of the central telescopic feeding pipe is of a conical pipe structure with a smaller upper part and a larger lower part; the first section of round pipes is connected to an upper end of the coal blockage-proof feeding pipe; a dust return plate is arranged inside the coal blockage-proof feeding pipe to guide dust-laden gas, generated at a coal falling point below and ascending along a pipe wall, downward, preventing the dust-laden gas from ascending along a cylinder wall into gaps among round pipe walls of the central telescopic feeding pipe; and the coal blockage-proof feeding pipe is provided with an exhaust port to discharge the internal dust-laden gas to the outside of the coal blockage-proof feeding pipe. 
     
     
         2 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 1 , wherein the coal blockage-proof feeding pipe comprises a flange interface, a straight section of the feeding pipe, an inclined section of the feeding pipe, and a triangular straight section of the feeding pipe connected in sequence, wherein the flange interface is connected to a lower port of the first section of round pipes, the dust return plate is arranged at a connection position of the straight section of the feeding pipe and the flange interface, and the exhaust port is opened on an upper end pipe wall of the straight section of the feeding pipe. 
     
     
         3 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein a periphery of the exhaust port is provided with a gas collection ring for collecting the dust-laden gas, the gas collection ring is connected to a gas guide pipe, and the gas guide pipe is configured to guide the collected dust-laden gas to a coal accumulation area below. 
     
     
         4 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 3 , wherein a dust removal device or an exhaust fan is installed at an outlet position of the gas guide pipe to accelerate the discharge of the dust-laden gas. 
     
     
         5 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein a blockage sensor mounting base is arranged at a lower end of the straight section of the feeding pipe for installing and connecting a blockage sensor, the blockage sensor is configured to detect a coal accumulation state inside a feeding pipe apparatus, and a sensor shield is arranged on the blockage sensor mounting base to protect the blockage sensor from being impacted and damaged by falling coal. 
     
     
         6 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein an inspection door that is capable of being opened and closed is opened on a wall surface of the inclined section of the feeding pipe to facilitate inspection and maintenance for a user. 
     
     
         7 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein a lower end of the inclined section of the feeding pipe is provided with a horizontal reinforcement rib and a fixed mounting surface, the fixed mounting surface is connected to the feeding pipe mounting base through a rubber buffer and a guide rod. 
     
     
         8 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein an upper end of the triangular straight section of the feeding pipe is provided with an arc-shaped baffle to form a triangular prism-shaped feeding pipe; two edges at a lower end of the triangular straight section of the feeding pipe directly abuts against two edges of a triangular shape on the feeding area plane of a coal discharge outlet; two sealing plates are arranged on both sides of a feeding opening on the feeding area plane; and through the sealing plates and the triangular straight section of feeding pipe, the feeding area plane and the coal discharge outlet are separated within a guide chute, ensuring that all the falling coal is concentrated onto a triangular inlet before being discharged to prevent the falling coal from accumulating on the feeding area plane. 
     
     
         9 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 2 , wherein an upper port of the first section of round pipes is a sealing ring, which is configured to seal a gap between the first section of round pipes and a second section of round pipes at the upper port of the first section of round pipes, and to ensure an up and down sliding movement of the second section of round pipes relative to the first section of round pipes; the lower port of the first section of round pipes is a flange interface of the first section of round pipes, which is configured to connect and fix with a flange interface of the coal blockage-proof feeding pipe. 
     
     
         10 . The coal blockage-proof feeding pipe apparatus for a coal storage Eurosilo according to  claim 9 , wherein the sealing ring is made of rubber or polyurethane materials.