Ash removal structure of waste incineration boiler

Abstract

The utility model discloses an ash removal structure of a waste incineration boiler. The ash removal structure comprises a connecting seat, a mechanical vibration ash removal mechanism and a knocking force adjusting mechanism, the rear ends of the connecting bases are connected with the front side of the header wall through bolts, sliding grooves are formed in the front sides of the connecting bases, symmetrically-distributed rotating bases are arranged on the left side and the right side of the header wall, a rotating shaft is rotationally connected between the rotating bases, and evenly-distributed cams fixedly sleeve the rotating shaft. The right side of the header wall is fixedly connected with a supporting plate; the mechanical vibration ash removal mechanisms are arranged in the sliding grooves correspondingly, and the mechanical vibration ash removal mechanisms correspond to the adjacent cams; according to the ash removal structure of the waste incineration boiler, the rapping strength is adjusted by changing the compression distance of the spring, and the phenomenon that cracks are likely to be generated at the fillet weld of the lower header of the tube panel of the heating surface due to the fact that the rapping strength and the rapping frequency are improved at the same time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage incineration equipment, in particular to a ash cleaning structure of a garbage incineration boiler. Background Art

[0002] In order to better manage garbage, my country has carried out garbage classification, and the classified garbage is treated harmlessly by sanitary landfill, incineration, composting, etc. During the garbage incineration process, because the garbage has a low calorific value and high water content, the temperature change value is relatively large, which can easily cause coking on the inner wall of the incinerator, bringing a great impact on the operation of the boiler, and a cleaning structure is needed.

[0003] There are four main ways to clean a waste incineration boiler: shock wave cleaning, steam soot blowing, mechanical vibration cleaning, and hydraulic cleaning. Mechanical vibration cleaning uses a mechanical vibration device arranged outside the furnace to hit the end of the header in the furnace through a vibration rod, and shakes off the ash accumulated in the tube bundle through the vibration.

[0004] There are some problems. Mechanical vibration cleaning adjusts the vibration force through the motor speed. As the vibration force increases, the vibration frequency increases, which may cause cracks in the corner welds of the header under the heating surface tube screen, increasing the probability of boiler leakage. For this reason, we propose a cleaning structure for waste incineration boilers. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a cleaning structure for a waste incineration boiler. The vibration force is adjusted by changing the spring compression distance to avoid the vibration force and the vibration frequency being increased at the same time, which may cause cracks to easily form at the corner weld of the header under the heating surface tube screen, and the problems in the background technology can be effectively solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ash cleaning structure for a garbage incineration boiler, comprising a connecting seat, a mechanical vibration ash cleaning mechanism and a knocking force adjustment mechanism;

[0007] Connecting seat: Its rear end is connected to the front side of the header wall by bolt connection, and the front side of the connecting seat is provided with a slide groove. The left and right sides of the header wall are provided with symmetrically distributed rotating seats, and a rotating shaft is rotatably connected between the rotating seats. The external fixed sleeve of the rotating shaft is provided with evenly distributed cams, and the right side of the header wall is fixedly connected with a support plate;

[0008] Mechanical vibration cleaning mechanism: it is respectively arranged inside the chute, and the mechanical vibration cleaning mechanism corresponds to the adjacent cam;

[0009] Beating force adjustment mechanism: It is respectively arranged on the lower side of the slide slot, and the vibration force is adjusted by changing the spring compression distance to avoid the vibration force and vibration frequency being increased at the same time, which may cause cracks to form at the corner weld of the header under the heating surface tube screen.

[0010] Furthermore, it also includes a control switch, which is arranged on the upper surface of the support plate, and the input end of the control switch is electrically connected to an external power supply to control the structural electrical appliances.

[0011] Furthermore, it also includes a motor, which is connected to the upper surface of the support plate by bolts, the left side of the output shaft of the motor is fixedly connected to the right side of the rotating shaft, and the input end of the motor is electrically connected to the output end of the control switch, which is the power source of mechanical vibration and cleaning.

[0012] Furthermore, the mechanical vibration cleaning mechanism includes an internal vibrating rod, a transmission rod, a slider and a spring limiting rod. The slider is slidably connected to the inside of the slide groove. The rear side of the slider is provided with a transmission rod, the front side of the slider is provided with a spring limiting rod, the middle part of the connecting seat is slidably connected to the internal vibrating rod, the left and right inner walls of the slide groove are provided with limiting slide rails, the left and right sides of the slider are respectively slidably connected to the inside of adjacent limiting slide rails, and the upper end of the slider corresponds one by one to the adjacent cams to realize mechanical vibration cleaning.

[0013] Furthermore, the knocking force adjustment mechanism includes a screw rod and a sliding seat, and the sliding seat is slidably connected to the left and right sides of the lower end of the slide groove through sliding rails. The front side of the sliding seat is rotatably connected to the screw rod, and the front upper end of the sliding seat is provided with an avoidance opening. The rear side of the screw rod is threadedly connected to the middle part of the lower end of the slide groove to realize the adjustment of the vibration force.

[0014] Furthermore, the knocking force adjustment mechanism also includes an adjusting nut, which is fixedly sleeved on the front outside of the screw rod and located on the front side of the sliding seat. The distance between the front side of the sliding seat and the front side of the sliding groove is adjusted by rotating the adjusting nut.

[0015] Furthermore, the mechanical vibration cleaning mechanism also includes a spring, and the spring is arranged between the front side of the sliding block and the front side of the sliding seat. The spring limiting rod passes through the spring and the avoidance opening to achieve mechanical vibration.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the ash cleaning structure of the waste incineration boiler has the following advantages:

[0017] Due to the different dust accumulation levels in different parts of the box, the required vibration force is different. By adjusting the nut and rotating the distance between the front side of the sliding seat and the front side of the slide slot, the compression distance of the spring is changed to adjust the vibration force, thereby avoiding the simultaneous increase of the vibration force and the vibration frequency, which may cause cracks to form at the corner weld of the header under the heating surface tube screen, and extending the service life of the parts in various parts of the header. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an enlarged cross-sectional structural diagram of point A of the present invention.

[0020] In the figure: 1 collecting box wall, 2 knocking force adjustment mechanism, 21 adjusting nut, 22 screw rod, 23 sliding seat, 3 control switch, 4 connecting seat, 5 motor, 6 mechanical vibration cleaning mechanism, 61 internal vibration rod, 62 transmission rod, 63 slider, 64 spring, 65 spring limit rod, 7 slide groove, 8 slide rail, 9 cam, 10 rotating shaft, 11 support plate, 12 rotating seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 , this embodiment provides a technical solution: a ash cleaning structure for a waste incineration boiler, comprising a connecting seat 4, a mechanical vibration ash cleaning mechanism 6 and a knocking force adjustment mechanism 2;

[0023] Connecting seat 4: Its rear end is connected to the front side of the header wall 1 by bolt connection, and the front side of the connecting seat 4 is provided with a slide groove 7, and the left and right sides of the header wall 1 are provided with symmetrically distributed rotating seats 12, and a rotating shaft 10 is rotatably connected between the rotating seats 12, and the external fixed sleeve of the rotating shaft 10 is provided with evenly distributed cams 9, and the right side of the header wall 1 is fixedly connected with a support plate 11;

[0024] Mechanical vibration cleaning mechanism 6: It is respectively arranged inside the slide 7, and the mechanical vibration cleaning mechanism 6 corresponds to the adjacent cam 9. The mechanical vibration cleaning mechanism 6 includes an internal rapping rod 61, a transmission rod 62, a slider 63 and a spring limiting rod 65. The slider 63 is slidably connected to the inside of the slide 7. The rear side of the slider 63 is provided with a transmission rod 62, and the front side of the slider 63 is provided with a spring limiting rod 65. The middle part of the connecting seat 4 is slidably connected with the internal rapping rod 61. The inner walls on both sides of the slide 7 are provided with limiting slide rails. The left and right sides of the slider 63 are respectively slidably connected to the inside of the adjacent limiting slide rails. The upper end of the slider 63 corresponds one by one to the adjacent cam 9. The mechanical vibration cleaning mechanism 6 also includes a spring limiting rod 65. Spring 64, spring 64 is arranged between the front side of slider 63 and the front side of sliding seat 23, spring limit rod 65 passes through spring 64 and avoidance opening, motor 5 is turned on by control switch 3, output shaft of motor 5 drives rotating shaft 10 and cam 9 to rotate counterclockwise, one end of cam 9 away from rotating shaft 10 rotates from the rear side of the upper end of slider 63 to the front side of the upper end of slider 63, slider 63 slides forward at the same time, compressing spring 64, one end of cam 9 away from rotating shaft 10 leaves the upper end of slider 63, spring 64 recovers, pushes slider 63 to slide backward, makes transmission rod 62 hit internal rapping rod 61, internal rapping rod 61 drives heating surfaces of various parts inside header to vibrate, realizes dust cleaning;

[0025] The knocking force adjustment mechanism 2 is respectively arranged on the lower side of the slide groove 7. The knocking force adjustment mechanism 2 includes a screw rod 22 and a sliding seat 23. The sliding seat 23 is slidably connected to the left and right sides of the lower end of the slide groove 7 through the slide rail 8. The front side of the sliding seat 23 is rotatably connected with the screw rod 22. The front upper end of the sliding seat 23 is provided with a avoidance opening. The rear side of the screw rod 22 is threadedly connected to the middle part of the lower end of the slide groove 7. The knocking force adjustment mechanism 2 also includes an adjusting nut 21. The adjusting nut 21 is fixedly sleeved on the front side of the screw rod 22. The adjusting nut 21 is located on the front side of the sliding seat 23. Due to the elastic force of the spring 64, the rear side of the internal rapping rod 61 always contacts the heating surfaces of various parts inside the collecting box to ensure the vibration effect. Due to the different dust accumulation degrees in various parts inside the box, the required rapping force is different. The distance between the front side of the sliding seat 23 and the front side of the slide groove 7 is adjusted by rotating the adjusting nut 21 to change the compression distance of the spring 64 to achieve the adjustment of the rapping force.

[0026] Among them: it also includes a control switch 3, the control switch 3 is arranged on the upper surface of the support plate 11, the input end of the control switch 3 is electrically connected to the external power supply, and the vibration force is adjusted by changing the spring compression distance to avoid the vibration force and the vibration frequency being increased at the same time, which may cause cracks to easily form at the corner weld of the header under the heating surface tube screen.

[0027] Among them: it also includes a motor 5, which is connected to the upper surface of the support plate 11 by bolts, the left side of the output shaft of the motor 5 is fixedly connected to the right side of the rotating shaft 10, and the input end of the motor 5 is electrically connected to the output end of the control switch 3, which is the power source of mechanical vibration and cleaning.

[0028] The working principle of the ash cleaning structure of a garbage incineration boiler provided by the utility model is as follows: the motor 5 is turned on by the control switch 3, and the output shaft of the motor 5 drives the rotating shaft 10 and the cam 9 to rotate counterclockwise, and the end of the cam 9 away from the rotating shaft 10 rotates from the rear side of the upper end of the slider 63 to the front side of the upper end of the slider 63, and the slider 63 slides forward at the same time, compressing the spring 64, and the end of the cam 9 away from the rotating shaft 10 leaves the upper end of the slider 63, and the spring 64 recovers, pushing the slider 63 to slide backward, so that the transmission rod 62 hits the internal rapping rod 61, and the internal rapping rod 61 drives the heating surfaces of various parts inside the header to vibrate, so as to achieve ash cleaning. Due to the elastic force of the spring 64, the rear side of the internal rapping rod 61 always contacts the heating surfaces of various parts inside the header to ensure the vibration effect. Due to the different degrees of dust accumulation in various parts inside the box, the required rapping force is different. The distance between the front side of the sliding seat 23 and the front side of the slide groove 7 is adjusted by rotating the adjusting nut 21 to change the compression distance of the spring 64, so as to achieve the adjustment of the rapping force.

[0029] It is worth noting that the motor 5 disclosed in the above embodiment can be selected as the RF87R57-267 motor, and the control switch 3 is provided with a switch button corresponding to the motor 5 for controlling its switching operation.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ash cleaning structure for a waste incineration boiler, characterized in that: It comprises a connecting seat (4), a mechanical vibration cleaning mechanism (6) and a knocking force adjustment mechanism (2); Connecting seat (4): Its rear end is connected to the front side of the header wall (1) by bolt connection, the front side of the connecting seat (4) is provided with a slide groove (7), the left and right sides of the header wall (1) are provided with symmetrically distributed rotating seats (12), a rotating shaft (10) is rotatably connected between the rotating seats (12), the outer fixed sleeve of the rotating shaft (10) is provided with evenly distributed cams (9), and the right side of the header wall (1) is fixedly connected with a support plate (11); Mechanical vibration cleaning mechanisms (6): they are respectively arranged inside the slide grooves (7), and the mechanical vibration cleaning mechanisms (6) correspond to the adjacent cams (9); The striking force adjustment mechanisms (2) are respectively arranged on the lower side of the slide grooves (7).

2. The ash cleaning structure of a waste incineration boiler according to claim 1 is characterized in that: It also comprises a control switch (3), wherein the control switch (3) is arranged on the upper surface of the support plate (11), and an input end of the control switch (3) is electrically connected to an external power supply.

3. The ash cleaning structure of a waste incineration boiler according to claim 1 is characterized in that: It also includes a motor (5), the motor (5) being connected to the upper surface of the support plate (11) by means of bolts, the left side of the output shaft of the motor (5) being fixedly connected to the right side of the rotating shaft (10), and the input end of the motor (5) being electrically connected to the output end of the control switch (3).

4. The ash cleaning structure of a waste incineration boiler according to claim 1 is characterized in that: The mechanical vibration cleaning mechanism (6) comprises an internal rapping rod (61), a transmission rod (62), a slider (63) and a spring limiting rod (65); the slider (63) is slidably connected to the inside of the slide groove (7); the rear side of the slider (63) is provided with a transmission rod (62); the front side of the slider (63) is provided with a spring limiting rod (65); the middle part of the connecting seat (4) is slidably connected to the internal rapping rod (61); the inner walls on the left and right sides of the slide groove (7) are provided with limiting slide rails; the left and right sides of the slider (63) are respectively slidably connected to the inside of adjacent limiting slide rails; the upper end of the slider (63) corresponds one-to-one to the adjacent cam (9).

5. The ash cleaning structure of a waste incineration boiler according to claim 4 is characterized in that: The knocking force adjustment mechanism (2) comprises a screw rod (22) and a sliding seat (23), wherein the sliding seat (23) is slidably connected to the left and right sides of the lower end of the slide groove (7) through a slide rail (8), the front side of the sliding seat (23) is rotatably connected to the screw rod (22), the upper end of the front side of the sliding seat (23) is provided with an escape opening, and the rear side of the screw rod (22) is threadedly connected to the middle part of the lower end of the slide groove (7).

6. The ash cleaning structure of a waste incineration boiler according to claim 5 is characterized in that: The knocking force adjustment mechanism (2) further comprises an adjustment nut (21), wherein the adjustment nut (21) is fixedly sleeved on the front exterior of the screw rod (22), and the adjustment nut (21) is located on the front side of the sliding seat (23).

7. The ash cleaning structure of a waste incineration boiler according to claim 5 is characterized in that: The mechanical vibration dust cleaning mechanism (6) further comprises a spring (64), wherein the spring (64) is arranged between the front side of the sliding block (63) and the front side of the sliding seat (23), and the spring limiting rod (65) passes through the spring (64) and the avoidance opening.

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