A flip type mechanical grate

Abstract

The present invention relates to a flipping mechanical grate for garbage incineration treatment, which discloses that a fixed beam is installed on a grate frame, a movable beam is installed on the side of the fixed beam, grates are installed on the fixed beam and the movable beam, a window is arranged on the grate of the fixed beam, a flipping grate sheet is installed in the grate window, a grate sheet shifting rod is installed on the grate frame below the fixed beam, the top of the grate sheet shifting rod is hinged with the bottom of the flipping grate sheet, a grate sheet transmission shaft is installed on the grate frame through a bearing seat, one end of the grate sheet transmission shaft is connected to the grate sheet shifting rod, and the other end is installed with a grate sheet swing arm; a grate sheet hydraulic cylinder is installed on the grate frame, and the telescopic end of the grate sheet hydraulic cylinder is hinged with the bottom of the grate sheet swing arm. The advantages of the present invention are that it is suitable for high-moisture garbage water combustion treatment, the garbage is flipped during the combustion process to improve the combustion condition, so that the garbage is fully and completely burned, and the burnout rate is improved, which has a positive effect on the volume reduction and resource utilization of garbage incineration treatment.

Description

Technical Field

[0001] The invention relates to a flipping mechanical grate used for incineration of urban domestic garbage. Background Art

[0002] With the advancement of urbanization and rapid economic growth, waste incineration has become a hot topic of increasing concern. Most of the mainstream large-scale domestic waste incinerators in China are grate furnaces introduced from abroad, and their grates are mainly divided into two types: moving grate and mobile grate. Since domestic garbage has the characteristics of large calorific value changes, complex components, large proportion of non-combustibles, and high density, the moving grate and mobile grate will each have shortcomings such as uneven grate air distribution and insufficient material layer stirring when encountering such garbage, which affects the combustion efficiency of the garbage in the furnace and reduces the garbage processing volume and treatment effect. Summary of the invention

[0003] The purpose of the present invention is to provide a mechanical grate of a turning-type garbage incinerator, which can loosen and stir the garbage on the grate, increase the contact area between the garbage and the air, continuously loosen the garbage layer and make the garbage fully contact with the air, thereby achieving a more ideal combustion effect, being beneficial to uniform drying, ignition, stable and complete combustion of the garbage, improving the burnout rate of the garbage, and playing a positive role in reducing the volume and amount of garbage incineration treatment and resource utilization.

[0004] The technical solution of the present invention is based on a grate frame, a grate, a fixed beam, a movable beam, a grate sheet transmission shaft, a movable beam transmission shaft, a movable beam swing arm, a flip grate sheet, a grate sheet swing arm, a movable beam hydraulic cylinder, a grate sheet hydraulic cylinder, a bearing seat, a grate sheet shifting rod, a movable beam shifting rod, and a supporting beam, and is characterized in that the fixed beam is installed on the grate frame, the movable beam can be moved forward and backward and is superimposed and installed on the side of the fixed beam, the tops of the fixed beam and the movable beam are respectively installed with grates, a window is provided on the grate of the fixed beam, and a rear end top of the flip grate sheet is provided A rotating shaft is provided, and the flipping grate piece is hingedly installed at the rear end of the grate window through the rotating shaft. A grate piece shifting rod is installed on the grate frame below the fixed beam and opposite to the flipping grate piece position up and down. The top of the grate piece shifting rod is hinged to the bottom of the flipping grate piece. The grate piece drive shaft is installed on the grate frame below the fixed beam through a bearing seat. One end of the grate piece drive shaft is connected to the grate piece shifting rod, and the other end is installed with a grate piece swing arm; the grate piece hydraulic cylinder is installed on the grate frame, and the telescopic end of the grate piece hydraulic cylinder is hinged to the bottom of the grate piece swing arm.

[0005] The movable beam lever described above is installed on the grate frame located below the rear end of the movable beam, the top of the movable beam lever is hinged to the rear end of the movable beam, the movable beam transmission shaft is installed on the grate frame below the movable beam through a bearing seat, one end of the movable beam transmission shaft is connected to the movable beam lever, and the other end is installed with a movable beam swing arm, the movable beam hydraulic cylinder is installed in the grate frame, and the telescopic end of the movable beam hydraulic cylinder is hinged to the bottom of the movable beam swing arm; a forward inclined surface is provided at the bottom of the front end of the movable beam, and the angle range of the inclined surface is 20° to 30°, a supporting beam is provided on the grate frame below the inclined surface, a pulley is provided on the top of the supporting beam, and the pulley is in contact with the inclined surface to support the movable beam to move forward and backward; the forward and backward movement trajectory of the movable beam is an elliptical clockwise forward and backward cyclic undulating motion.

[0006] When the telescopic rod of the grate plate hydraulic cylinder of the present invention is extended and retracted forward and backward, it can drive the grate plate shifting rod to rotate clockwise and counterclockwise along the axis core. When the grate plate shifting rod swings forward and backward, the front end of the flipping grate plate is forced to move up and down. There are three types of ups and downs of the flipping grate plate. When it is raised to the highest, it is in the upturned position; when it rises to the middle, it is the initial state; when it rises to the lowest, it is the drooping state. In the drooping state, the plane of the flipping grate plate is parallel to the grate plane.

[0007] The grate frame, grate, fixed beam, movable beam, grate plate drive shaft, movable beam drive shaft, movable beam swing arm, flip grate plate, grate plate swing arm, movable beam hydraulic cylinder, grate plate hydraulic cylinder, bearing seat, grate plate shift rod, movable beam shift rod and supporting beam constitute a grate rolling device, and at least one grate rolling device is installed in a straight line array.

[0008] The horizontal downward inclination angle range of the fixed beam and the movable beam of the present invention is 7.5° to 15°.

[0009] The present invention comprises at least one grate tumbling device arranged in a straight line, and then installed in a stepped manner from back to front end to end as level one, level two, level three and level four, wherein level one is a drying section, level two is a combustion section, and levels three and four are burnout sections; there is a vertical drop between the grate levels.

[0010] The working principle of the present invention is that the garbage is burned in layers on the grate, and the ash is discharged out of the furnace after drying, burning, and burning out; the combustion air of the garbage is sent in from the bottom of the grate. According to the different calorific value and moisture of the garbage, the air sent into the grate can be hot air or cold air. Different grate structures have different grate ventilation methods. The grate reciprocates under hydraulic drive, so that the garbage moves under the grate driving force and the garbage self-weight force. The flipping grate is connected by a hydraulic drive mechanism. Under hydraulic drive, the flipping grate piece realizes up and down reciprocating fluctuation, so that the garbage layer is continuously loosened and the garbage is fully in contact with the air, thereby achieving a more ideal combustion effect.

[0011] The advantage of the present invention is that it is suitable for the combustion treatment of domestic garbage with high moisture content. By turning the garbage during the combustion process, the combustion conditions are improved, the combustible components in the garbage are fully and completely burned, and the burnout rate is increased, which has a positive effect on the volume reduction and resource utilization of garbage incineration treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 The present invention Figure 1 Schematic diagram of the structure from top view;

[0014] Figure 3 It is a schematic diagram of the structure of the initial state of the flipping grate plate movement of the present invention;

[0015] Figure 4 It is a schematic diagram of the structure of the flipping grate plate of the present invention in the state of flipping up to the position;

[0016] Figure 5 It is a schematic diagram of the structure of the flipping grate plate of the present invention in the drooping state;

[0017] Figure 6 The present invention Figure 1 A schematic diagram of the partial cross-section structure in the upper left corner;

[0018] Figure 7 The present invention Figure 1 The upper right corner shows a partial cross-sectional view of the structure;

[0019] Figure 8 It is a schematic diagram of the structure of the stepped end-to-end stacking installation of the grate tumbling device of the present invention. DETAILED DESCRIPTION Example 1

[0020] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the present invention is based on a grate frame 1, a grate 3, a fixed beam 2, a movable beam 5, a grate sheet transmission shaft 8.1, a movable beam transmission shaft 8.2, a movable beam swing arm 13, a flip grate sheet 4, a grate sheet swing arm 14, a movable beam hydraulic cylinder 10, a grate sheet hydraulic cylinder 9, a bearing seat 12, a grate sheet shifting rod 7, a movable beam shifting rod 6, and a supporting beam 11. The feature of the present invention is that the fixed beam 2 is installed on the grate frame 1, the movable beam 5 can be moved forward and backward and is superimposed and installed on the right side of the fixed beam 2, the tops of the fixed beam 2 and the movable beam 5 are respectively installed with grates 3, a window is provided on the grate of the fixed beam 2, and the rear end top of the flip grate sheet 4 A rotating shaft is provided, and the flipping grate plate 4 is hingedly installed at the rear end of the grate window through the rotating shaft. A grate plate shifting rod 7 is installed on the grate frame 1 below the fixed beam 2 and opposite to the flipping grate plate 4. The top of the grate plate shifting rod 7 is hinged to the bottom of the flipping grate plate 4. The grate plate transmission shaft 8.1 is installed on the grate frame 1 below the fixed beam 2 through a bearing seat 12. One end of the grate plate transmission shaft 8.1 is connected to the swing axis core of the grate plate shifting rod 7, and the other end is installed with a grate plate swing arm 14; the grate plate hydraulic cylinder 9 is installed on the grate frame 1, and the telescopic end of the grate plate hydraulic cylinder 9 is hinged to the bottom of the grate plate swing arm 14.

[0021] The movable beam lever 6 is installed on the grate frame 1 located below the rear end of the movable beam 5, the top of the movable beam lever 6 is hinged with the rear end of the movable beam 5, the movable beam transmission shaft 8.2 is installed on the grate frame 1 below the movable beam 5 through the bearing seat 12, one end of the movable beam transmission shaft 8.2 is connected to the swing axis core of the movable beam lever 6, and the other end is installed with a movable beam swing arm 13, the movable beam hydraulic cylinder 10 is installed on the grate frame 1, and the telescopic end of the movable beam hydraulic cylinder 10 is hinged with the bottom of the movable beam swing arm 13; the bottom of the front end of the movable beam 5 is provided with a forward inclined surface, the angle of the inclined surface is 20°, the grate frame 1 below the inclined surface is provided with a supporting beam 11, the top of the supporting beam 11 is provided with a pulley, the pulley is in contact with the inclined surface to support the movable beam 5 to move forward and backward; the forward and backward movement trajectory of the movable beam 5 is an elliptical clockwise forward and backward cyclic undulating movement. The stroke of the movable beam hydraulic cylinder 10 and the grate plate hydraulic cylinder 9 is a hydraulic cylinder of 180mm, and the piston speed is 0-180cm / min.

[0022] When the telescopic rod of the grate plate hydraulic cylinder 9 is extended and retracted forward and backward, the grate plate shifting rod 7 can be driven to rotate clockwise and counterclockwise along the axis core through the grate plate swinging arm 14 and the grate plate transmission shaft 8.1. When the grate plate shifting rod 7 swings forward and backward, the front end of the flipping grate plate 4 is forced to move up and down along the axis core of the rear end rotating shaft. The flipping grate plate 4 has three ups and downs. When it is raised to the highest, it is in the upturned position; when it rises to the middle, it is the initial state; when it rises to the lowest, it is the drooping state. In the drooping state, the plane of the flipping grate plate is parallel to the grate plane.

[0023] The grate frame 1, grate 3, fixed beam 2, movable beam 5, grate plate drive shaft 8.1, movable beam drive shaft 8.2, movable beam swing arm 13, flip grate plate 4, grate plate swing arm 14, movable beam hydraulic cylinder 10, grate plate hydraulic cylinder 9, bearing seat 12, grate plate shifting rod 7, movable beam shifting rod 6, and supporting beam 11 constitute a grate rolling device, and four grate rolling devices are installed in a straight line array.

[0024] The horizontal inclination angle of the grate surface of the grate tumbling device is 7.5°.

[0025] The four grate tumbling devices are arranged in a straight line on the left and right sides, and then are installed in a stepped manner from back to front, end to end, into the first, second, third and fourth levels. The first level is the drying section, the second level is the combustion section, and the third and fourth levels are the burning sections. There is a vertical drop between each level. Example 2

[0026] The same as Example 1, except that: the bottom of the front end of the movable beam is provided with a forward inclined surface, the angle of which is 25°. The horizontal inclination angle of the grate surface of the grate tumbling device is 15°. Eight grate tumbling devices are installed in a straight line array. Example 3

[0027] The same as Example 1, except that: the bottom of the front end of the movable beam is provided with a forward inclined surface, the angle of which is 30°. The horizontal inclination angle of the grate surface of the grate tumbling device is 15°. Sixteen grate tumbling devices are installed in a straight line array.

Claims

1. A flipping mechanical grate, which includes a grate frame, a grate, a fixed beam, a movable beam, a grate plate transmission shaft, a movable beam transmission shaft, a movable beam swing arm, a flipping grate plate, a grate plate swing arm, a movable beam hydraulic cylinder, a grate plate hydraulic cylinder, a bearing seat, a grate plate lever, a movable beam lever, and a support beam, wherein the grate plate lever is The fixed beam is installed on the grate frame, and the movable beam can be superimposed and installed on the side of the fixed beam so as to move forward and backward. Grates are respectively installed on the top of the fixed beam and the movable beam. A window is provided on the grate of the fixed beam, and a rotating shaft is provided on the top of the rear end of the flipping grate piece. The flipping grate piece is hingedly installed on the rear end of the grate window through the rotating shaft. A grate piece shifting rod is installed on the grate frame below the fixed beam and opposite to the flipping grate piece position up and down. The top of the grate piece shifting rod is hinged to the bottom of the flipping grate piece. The grate piece drive shaft is installed on the grate frame below the fixed beam through a bearing seat. One end of the grate piece drive shaft is connected to the grate piece shifting rod, and the other end is provided with a grate piece swing arm; the grate piece hydraulic cylinder is installed on the grate frame, and the telescopic end of the grate piece hydraulic cylinder is connected to the grate piece swing arm The bottom of the movable beam is hinged; the movable beam lever is installed on the grate frame below the rear end of the movable beam, the top of the movable beam lever is hinged to the rear end of the movable beam, the movable beam transmission shaft is installed on the grate frame below the movable beam through a bearing seat, one end of the movable beam transmission shaft is connected to the movable beam lever, and the other end is equipped with a movable beam swing arm, the movable beam hydraulic cylinder is installed on the grate frame, and the telescopic end of the movable beam hydraulic cylinder is hinged to the bottom of the movable beam swing arm; a forward inclined surface is provided at the bottom of the front end of the movable beam, and the angle range of the inclined surface is 20° to 30°, a supporting beam is provided on the grate frame below the inclined surface, a pulley is provided on the top of the supporting beam, and the pulley is in contact with the inclined surface to support the movable beam to move forward and backward; the forward and backward movement trajectory of the movable beam is an elliptical clockwise forward and backward cyclic undulating motion.

2. A flip-type mechanical grate according to claim 1, characterized in that When the telescopic rod of the grate plate hydraulic cylinder is extended and retracted forward and backward, it can drive the grate plate shifting rod to rotate clockwise and counterclockwise along the axis core. When the grate plate shifting rod swings forward and backward, the front end of the flipping grate plate is forced to move up and down. There are three types of ups and downs of the flipping grate plate. When it is raised to the highest, it is in the upturned position; when it rises to the middle, it is the initial state; when it rises to the lowest, it is the drooping state. In the drooping state, the plane of the flipping grate plate is parallel to the grate plane.

3. A flip-type mechanical grate according to claim 1, characterized in that The grate frame, grate, fixed beam, movable beam, grate plate drive shaft, movable beam drive shaft, movable beam swing arm, flip grate plate, grate plate swing arm, movable beam hydraulic cylinder, grate plate hydraulic cylinder, bearing seat, grate plate shift rod, movable beam shift rod and supporting beam constitute a grate rolling device, and at least one grate rolling device is installed in a straight line array.

4. A flip-type mechanical grate according to claim 3, characterized in that After the at least one grate tumbling device is arranged in a straight line, it is installed in a stepped manner from back to front end to end as the first level, the second level is the combustion section, the third level and the fourth level are the burning section; there is a vertical drop between the grates at each level.

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