Two-section type waste incinerator

Abstract

It is disclosed a two-section type waste incinerator, wherein secondary air supplying holes ( 27 e ) are provided on a front arch and a back arch of an incinerator body ( 27 ), and an ignition combustion-supporting hole ( 27 f ) is provided on the back arch of the incinerator body. Grate inside the incinerator body ( 27 ) is divided into two sections from a high point to a low point, i.e., an upper section and a lower section, the upper section is a pusher type section ( 6 ) and the lower section is a reverse pusher type section ( 7 ), and an independent primary air chamber ( 26 ) is provided under each section. All heads of the grate-pieces ( 3, 5 ) on the pusher type section ( 6 ) face toward a low point of the grate, and all heads of the grate-pieces ( 3, 5 ) on the reverse pusher type section ( 7 ) face toward a high point of the grate. Each movable beam ( 4 ) on the same section of the grate is equipped with left and right levers ( 24, 25 ) disposed side by side, the left and right levers ( 24, 25 ) are supported by a supporting roller device respectively and are connected to the movable beam ( 4 ) to form a lever frame, and an end of the lever frame is connected to a front swing arm driving mechanism or a lateral swing arm driving mechanism or a front straight driving mechanism. The incinerator of the present invention can realize sufficient dryness, complete combustion and burnout of the whole waste layer, and ensure the desired waste incineration effect and ignition loss.

1 . A two-section type waste incinerator, comprising an incinerator body, a material pusher, a primary air chamber, a lateral girder, a fixed beam, a fixed grate-piece, a movable beam and a movable grate-piece, wherein a slag removing port ( 27   a ) is provided at a tail portion of the bottom end of the incinerator body ( 27 ), a material feeding bunker ( 27   b ) and a smoke outlet ( 27   c ) are provided at a front portion and a rear portion of the top end of the incinerator body ( 27 ) respectively, a material push platform ( 27   d ) is provided under the material feeding bunker ( 27   b ), the material pusher ( 28 ) is provided above the material push platform ( 27   d ), the fixed beam ( 2 ) which is mounted on the lateral girder ( 1 ) passes through grooves provided at tail portions of the fixed grate-pieces ( 3 ) positioned in the same row to form a fixed grate-plate, the movable beam ( 4 ) which is mounted on a lever passes through grooves provided at tail portions of the movable grate-pieces ( 5 ) positioned in the same row to form a movable grate-plate, the movable grate-plate and the fixed grate-plate are overlapped front and back and arranged with an interval to be assembled into a grate, heads of the grate-pieces are all provided with primary air holes, characterized in that:
 A. The grate is divided into two sections from a high point to a low point, i.e., an upper section and a lower section, the upper section is a pusher type section ( 6 ) and the lower section is a reverse pusher type section ( 7 ), all heads of the grate-pieces on the pusher type section ( 6 ) face toward a low point of the grate, and all heads of the grate-pieces on the reverse pusher type section ( 7 ) face toward a high point of the grate;   B. Each movable beam ( 4 ) on the same section of the grate is equipped with left and right levers disposed side by side, the left and right levers are supported by a supporting roller device respectively and are connected to the movable beam ( 4 ) to form a lever frame, and an end of the lever frame is connected to a front swing arm driving mechanism or a lateral swing arm driving mechanism or a front straight driving mechanism.   
     
     
         2 . The two-section type waste incinerator according to  claim 1 , characterized in that a pre-drying air chamber ( 30 ) is provided under the material push platform ( 27   d ) and a gathering port is provided at a lower end of the pre-drying air chamber ( 30 ), an upper end of the pre-drying air chamber has a shape of trumpet, which is larger at an upper part and smaller at a lower part, and a hot air supplying port ( 30   a ) is provided on the sidewall of the trumpet. 
     
     
         3 . The two-section type waste incinerator according to  claim 1 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the pusher type section ( 6 ) is in a range of 0-18°, and an angle between a horizontal plane and a movement plane of the movable grate-pieces on the pusher type section ( 6 ) is in a range of 0-60°, and the stroke of the movable grate-pieces on the pusher type section ( 6 ) is in a range of 200-400 mm. 
     
     
         4 . The two-section type waste incinerator according to  claim 1 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the pusher type section ( 6 ) is in a range of 18-30°, and an angle between a horizontal plane and a movement plane of the movable grate-pieces on the pusher type section ( 6 ) is in a range of 0-60°, and the stroke of the movable grate-pieces on the pusher type section ( 6 ) is in a range of 400-500 mm. 
     
     
         5 . The two-section type waste incinerator according to  claim 2 , characterized in that the head of each grate-piece on the pusher type section is provided with a fin ( 20 ), the fins ( 20 ) on the heads of all grate-pieces on the pusher type section ( 6 ) form a toothed matrix structure laterally arranged. 
     
     
         6 . The two-section type waste incinerator according to  claim 5 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the reverse pusher type section ( 7 ) is in a range of 20-35°, and an angle between a horizontal plane and the movement plane of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 25-60°, and the stroke of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 350-500 mm, head-bosses of two adjacent grate-pieces in the same row of grate-plates on the reverse pusher type section ( 7 ) are staggered transversally, forwardly and backwardly, and front ends of each row of grate-pieces are flush with each other, primary air holes ( 21 ) provided on heads of two adjacent grate-pieces in the width direction are also staggered transversally, forwardly and backwardly. 
     
     
         7 . The two-section type waste incinerator according to  claim 1 , characterized in that the supporting roller device comprises a supporting roller shaft ( 8 ) and a supporting roller bearing seat ( 9 ), each end of the supporting roller shaft ( 8 ) is supported by the supporting roller bearing seat ( 9 ), and the supporting roller shaft ( 8 ) supports a corresponding lever, and a guide wheel ( 10 ) is provided on each side of the lever. 
     
     
         8 . The two-section type waste incinerator according to  claim 1 , characterized in that the front swing arm driving mechanism comprises a driving cylinder ( 11 ), a driving cylinder seat ( 12 ), a driving shaft ( 13 ), a driving bearing seat ( 14 ), a lever swing arm ( 15 ), a linkage ( 16 ) and a lever arm ( 17 ), wherein the cylinder body of the driving cylinder ( 11 ) is hinged to the driving cylinder seat ( 12 ), a piston rod of the driving cylinder ( 11 ) is connected to a cylinder swing arm of the driving shaft ( 13 ), an end portion at each end of the driving shaft ( 13 ) is supported by the driving bearing seat ( 14 ), the lever swing arm ( 15 ) is provided at the position adjacent to an end portion on each end of the driving shaft ( 13 ), each lever swing arm ( 15 ) is hinged to the lever arm ( 17 ) by the linkage ( 16 ), the lever arm ( 17 ) is connected to a corresponding lever frame;
 the lateral swing arm driving mechanism comprises a driving cylinder ( 11 ), a driving cylinder seat ( 12 ), a swing arm ( 18 ), a driving shaft ( 13 ), a driving bearing seat ( 14 ), a lever swing arm ( 15 ) and a linkage ( 16 ), wherein the cylinder body of the driving cylinder ( 11 ) is hinged to the driving cylinder seat ( 12 ), a piston rod of the driving cylinder ( 11 ) is hinged to one end of the swing arm ( 18 ), the other end of the swing arm ( 18 ) is connected to an end of the driving shaft ( 13 ), each end of the driving shaft ( 13 ) is supported by the driving bearing seat ( 14 ), two lever swing arms ( 15 ) are provided on the driving shaft ( 13 ) side-by-side, each lever swing arm ( 15 ) is connected to a corresponding lever frame by the linkage ( 16 ;the front straight driving mechanism comprises a driving cylinder ( 11 ), a driving cylinder seat ( 12 ) and a straight driving linkage ( 19 ), wherein the cylinder body of the driving cylinder ( 11 ) is hinged to the driving cylinder seat ( 12 ), a piston rod of the driving cylinder ( 11 ) is hinged to one end of the straight driving linkage ( 19 ), the other end of the straight driving linkage is connected to a corresponding lever frame.   
     
     
         9 . The two-section type waste incinerator according to  claim 1 , characterized in that a height difference exists between the pusher type section ( 6 ) and the reverse pusher type section ( 7 ), a tail end of the pusher type section ( 6 ) is coupled to the reverse pusher type section ( 7 ) through a fireproof transition platform ( 22 ) or an intermediate grate ( 23 ). 
     
     
         10 . The two-section type waste incinerator according to  claim 1 , characterized in that the lever is a straight-line type or Z-shaped lever, and the fixed beam ( 2 ) is a M-shaped or Chinese character “ ” shaped beam. 
     
     
         11 . The two-section type waste incinerator according to  claim 1 , characterized in that it has at least one of the following technical features:
 C. An independent primary air chamber ( 26 ) is provided under each of the pusher type section ( 6 ) and the reverse pusher type section ( 7 ), each primary air chamber ( 26 ) has a shape of trumpet, which is larger at an upper part and smaller at a lower part;   D. Secondary air supplying holes ( 27   e ) are provided on a front arch and a back arch of the incinerator body ( 27 ), and an ignition combustion-supporting hole ( 27   f ) is provided on the back arch of the incinerator body ( 27 );   E. Wedge grooves are provided between the lateral girder ( 1 ) and a wrapped steel sheet of the incinerator body ( 27 ) and between the material push platform ( 27   d ) and the wrapped steel sheet of the incinerator body ( 27 ), each wedge groove is filled with fireproof sealing filler ( 29 ), and the groove opening of the wedge groove is sealed by a U-shaped or corrugated buffering hot expansion pressure plate.   
     
     
         12 . The two-section type waste incinerator according to  claim 3 , characterized in that the head of each grate-piece on the pusher type section is provided with a fin ( 20 ), the fins ( 20 ) on the heads of all grate-pieces on the pusher type section ( 6 ) form a toothed matrix structure laterally arranged. 
     
     
         13 . The two-section type waste incinerator according to  claim 12 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the reverse pusher type section ( 7 ) is in a range of 20-35°, and an angle between a horizontal plane and the movement plane of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 25-60°, and the stroke of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 350-500 mm, head-bosses of two adjacent grate-pieces in the same row of grate-plates on the reverse pusher type section ( 7 ) are staggered transversally, forwardly and backwardly, and front ends of each row of grate-pieces are flush with each other, primary air holes ( 21 ) provided on heads of two adjacent grate-pieces in the width direction are also staggered transversally, forwardly and backwardly. 
     
     
         14 . The two-section type waste incinerator according to  claim 4 , characterized in that the head of each grate-piece on the pusher type section is provided with a fin ( 20 ), the fins ( 20 ) on the heads of all grate-pieces on the pusher type section ( 6 ) form a toothed matrix structure laterally arranged. 
     
     
         15 . The two-section type waste incinerator according to  claim 14 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the reverse pusher type section ( 7 ) is in a range of 20-35°, and an angle between a horizontal plane and the movement plane of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 25-60°, and the stroke of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 350-500 mm, head-bosses of two adjacent grate-pieces in the same row of grate-plates on the reverse pusher type section ( 7 ) are staggered transversally, forwardly and backwardly, and front ends of each row of grate-pieces are flush with each other, primary air holes ( 21 ) provided on heads of two adjacent grate-pieces in the width direction are also staggered transversally, forwardly and backwardly. 
     
     
         16 . The two-section type waste incinerator according to  claim 5 , characterized in that the head of each grate-piece on the pusher type section is provided with a fin ( 20 ), the fins ( 20 ) on the heads of all grate-pieces on the pusher type section ( 6 ) form a toothed matrix structure laterally arranged. 
     
     
         17 . The two-section type waste incinerator according to  claim 16 , characterized in that an angle between a horizontal plane and an inclined plane formed by connection lines of heads of the grate-pieces on the reverse pusher type section ( 7 ) is in a range of 20-35°, and an angle between a horizontal plane and the movement plane of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 25-60°, and the stroke of the movable grate-pieces on the reverse pusher type section ( 7 ) is in a range of 350-500 mm, head-bosses of two adjacent grate-pieces in the same row of grate-plates on the reverse pusher type section ( 7 ) are staggered transversally, forwardly and backwardly, and front ends of each row of grate-pieces are flush with each other, primary air holes ( 21 ) provided on heads of two adjacent grate-pieces in the width direction are also staggered transversally, forwardly and backwardly.