Automatic reef poking device for slag discharge opening of boiler

Abstract

The invention discloses an automatic reef poking device for a boiler slag discharge port, and relates to the technical field of automatic reef poking, the automatic reef poking device comprises a first driving device arranged outside a boiler slag discharge hopper and a reef breaking cone arranged inside the boiler slag discharge hopper, the driving end of the first driving device extends into the boiler slag discharge hopper and is connected with the reef breaking cone, and the driving end of the first driving device is connected with the reef breaking cone. The reef breaking cone is located above a reinforcing pull rod in the boiler slag discharging hopper, the number of the first driving devices is at least two, and the first driving devices are arranged in the circumferential direction of the side wall of the boiler slag discharging hopper. The reef blocks close to the slag hopper and the hopper wall can be hammered and crushed, so that the reef blocks fall into the slag extrusion opening more easily, the problem that the slag extrusion door cannot crush the slag blocks due to the fact that the slag blocks are too large is solved, the reef blocks can be prevented from being clamped on the reinforcing pull rods or adhered to the inner wall of the slag hopper, and then the reef blocks fall into the slag extrusion opening after being crushed again by the slag extrusion door, and the slag extrusion door is prevented from being damaged. And conveying to a slag bin through a steel belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic reef poking, in particular to a boiler slag discharge port automatic reef poking device. BACKGROUND

[0002] The prior art boiler slag discharge port is provided with a double-discharge hydraulic slag extrusion door, and the reef blocks falling into the slag discharge port are crushed by the pressure of the hydraulic oil cylinder to be discharged from the boiler. When the amount of boiler slag is large or the slag is soft, the reef blocks will be accumulated or adhered to the slag hopper wall or the upper part of the hydraulic slag extrusion door, so that the reef blocks cannot be normally extruded, causing the reef blocks to accumulate and block the slag discharge port. After the blockage, a large number of workers need to use a lengthened iron rod to manually dredge, and when necessary, the reef blocks need to be blasted to prevent the reef blocks from being accumulated seriously and affecting the power generation efficiency of the unit. Manual dredging is prone to cause high-temperature burns, and the blasting process also has a high safety risk; the dredging process needs to consume a large amount of manpower and material resources, and also causes great waste.

[0003] In addition, most of the internal reinforcing rods of the boiler slag discharge hopper have large reef blocks falling in the furnace during the soot blowing process. Since the reef blocks are soft at high temperature, they are not easy to break when falling and are easy to be stuck on the reinforcing rods or adhered to the inner wall of the slag hopper, so that the reef blocks cannot be smoothly discharged to the slag extrusion door, causing the slag extrusion door to be unable to crush the slag blocks.

[0004] Therefore, it is necessary to develop and design a boiler slag discharge port automatic reef poking device to realize reef poking of the slag discharge port, avoid blockage of the slag discharge port, and ensure the reef poking effect, which is a technical problem urgently to be solved by the technical personnel in the field. SUMMARY

[0005] In order to solve the above problems, the present application provides a boiler slag discharge port automatic reef poking device to realize reef poking of the slag discharge port, avoid blockage of the slag discharge port, and ensure the reef poking effect.

[0006] To achieve the above purpose, the present application provides the following scheme:

[0007] A boiler slag discharge port automatic reef poking device, comprising a first driving device arranged outside a boiler slag discharge hopper and a reef breaking cone arranged inside the boiler slag discharge hopper, a driving end of the first driving device extending into the inside of the boiler slag discharge hopper and being connected with the reef breaking cone, the reef breaking cone being located above a reinforcing rod in the inside of the boiler slag discharge hopper, the first driving device being arranged in at least two, and the first driving device being arranged along the circumference of the side wall of the boiler slag discharge hopper.

[0008] Preferably, the installation heights of adjacent reef breaking cones at the driving end of the first driving device are different.

[0009] Preferably, the outer diameter of the reef breaking cone near one side of the driving end of the first driving device is greater than the outer diameter of the reef breaking cone away from the other side of the driving end of the first driving device.

[0010] Preferably, the reef breaking cone is flat on the side away from the driving end of the first driving device, and the first driving device drives the reef breaking cone to make the flat surface fit the inner wall of the side of the boiler slag discharge hopper away from the first driving device.

[0011] Preferably, the outer side of the boiler slag discharge hopper is further provided with a second driving device, and the driving end of the second driving device is provided with a rapping device for rapping the outer wall of the boiler slag discharge hopper.

[0012] Preferably, the rapping device is a flexible rapping hammer.

[0013] Preferably, the flexible rapping hammer comprises a rapping hammer body and a hammer head connected with the rapping hammer body, the material of the rapping hammer body is one of carbon steel, high manganese steel or high chromium cast iron, and the material of the hammer head is one of polyurethane or silicone rubber.

[0014] Preferably, the flexible rapping hammer is connected with the driving end of the second driving device through a flexible pad or a spring.

[0015] Preferably, the first driving device and the second driving device are both air cylinders, and the air cylinders are arranged in at least two rows in the height direction of the boiler slag discharge hopper.

[0016] Preferably, the application further comprises a compressed air tank connected with the air cylinders, an air outlet valve and a reversing solenoid valve arranged between the compressed air tank and the air cylinders, an air inlet valve arranged on the compressed air tank, and a control cabinet for controlling the opening and closing of the air outlet valve and the reversing solenoid valve to realize the reciprocating motion of the air cylinders.

[0017] The application has the following technical effects relative to the prior art:

[0018] By arranging the reef breaking cone above the reinforcing pull rod, the reef blocks near the slag discharge hopper and the hopper wall can be broken by the reciprocating motion of the reef breaking cone, so that the reef blocks are more easily dropped into the extrusion opening, the problem that the extrusion door cannot crush the slag blocks due to the large size of the slag blocks is avoided, and the reef blocks are prevented from being stuck on the reinforcing pull rod or the inner wall of the slag discharge hopper. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Appendix Figure 1 This is a schematic diagram of the overall structure of the boiler ash discharge hopper of the automatic ash discharge port clearing device disclosed in this invention.

[0021] Appendix Figure 2 This is a schematic diagram of the overall structure of the automatic reef-breaking cone of the boiler ash discharge port automatic reef-breaking device disclosed in this invention;

[0022] Appendix Figure 3 This is a schematic diagram of the overall structure of the cylinder control system of the automatic ash removal device for boiler ash discharge port disclosed in this invention.

[0023] The components include: 1. Boiler slag hopper; 2. Through hole; 3. Reef-breaking cone; 4. Compressed air tank; 5. Inlet valve; 6. Outlet valve; 7. Reversing solenoid valve; 8. Cylinder; 9. Pressure gauge; 10. Pressure switch; and 11. Control cabinet. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide an automatic slag removal device for boiler slag discharge ports, which can remove slag from the discharge ports, prevent blockage, and ensure the slag removal effect.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] refer to Figure 1 and Figure 2The automatic reef poking device for boiler slag discharge port disclosed in the embodiment of the present application at least comprises a first driving device arranged outside a boiler slag discharge hopper 1 and a reef breaking cone 3 arranged inside the boiler slag discharge hopper 1, a through hole 2 through which a driving end of the first driving device passes is arranged on a side wall of the boiler slag discharge hopper 1, the driving end of the first driving device extends to the inside of the boiler slag discharge hopper 1 through the through hole 2 and is connected with the reef breaking cone 3, and the reef breaking cone 3 is located above a reinforcing pull rod inside the boiler slag discharge hopper 1. The first driving device is arranged at least in two and is uniformly arranged along the circumference of the side wall of the boiler slag discharge hopper 1. By arranging the reef breaking cone 3 and arranging the reef breaking cone 3 above the reinforcing pull rod, the reef block near the slag hopper and the hopper wall can be broken by the reciprocating movement of the reef breaking cone 3, the reef block is more easily dropped into the extrusion slag port, the problem that the extrusion slag door cannot crush the slag block due to the slag block being too large is avoided, and the reef block can be avoided from being stuck on the reinforcing pull rod or adhered to the inner wall of the slag hopper. After reef poking, the reef block is crushed again by the extrusion slag door and then falls into the extrusion slag port and is transported to the slag bin by the steel belt.

[0028] It should be noted that, preferably, the reciprocating movement direction of the driving end of the first driving device is perpendicular to the axis of the slag discharge hopper, and the first driving device is uniformly arranged along the circumference of the side wall of the boiler slag discharge hopper 1. The first driving device is supported by a support arranged outside the boiler slag discharge hopper 1.

[0029] Reference Figure 1 and Figure 2 In an embodiment, the installation heights of adjacent reef breaking cones 3 are different at the driving end of the first driving device. If all the reef breaking cones 3 move synchronously, the equipment may vibrate due to frequency superposition. The height difference can disperse the impact force peak value and reduce the risk of mechanical fatigue. The reef breaking cones 3 with different heights form a phase difference when reciprocating, and the impact points on the inner wall of the boiler slag discharge hopper 1 and the reef block are distributed in a stepped manner, avoiding local stress concentration or broken blind area caused by simultaneous impact on the same area.

[0030] Reference Figure 1 and Figure 2 As a preferred way, the outer diameter of the side of the reef breaking cone 3 close to the driving end of the first driving device is greater than the outer diameter of the side away from the driving end of the first driving device, that is, the small-diameter end serves as a hammering surface. The small-diameter end can improve the local pressure by reducing the contact area, so that the impact force is more concentrated, which is especially suitable for breaking high-hardness reef blocks. The small-diameter end structure can guide the broken slag blocks to flow to the slag discharge port, avoiding the accumulation of reef blocks on the reef breaking cone 3 and reducing the risk of secondary accumulation.

[0031] Reference Figure 1 and Figure 2, as an embodiment, the side of the reef breaking cone 3 away from the driving end of the first driving device is a plane, and the first driving device drives the reef breaking cone 3 to make the plane fit the inner wall of the boiler slag discharge hopper 1 away from the side of the corresponding first driving device. By setting the plane, the plane can fit the inner wall of the boiler slag discharge hopper 1 during reef breaking, which can disperse the impact force and reduce the wear of the inner wall of the boiler slag discharge hopper 1 by the reef breaking cone 3 during reef breaking on the basis of ensuring that the reef breaking cone 3 can be elongated to the maximum extent.

[0032] It should be noted that, in the case of uniform arrangement of the reef breaking cone 3 along the circumference of the boiler slag discharge hopper 1, the opposite reef breaking cone 3 does not need to fit the inner wall of the boiler slag discharge hopper 1, but can return to the position of the central axis of the boiler slag discharge hopper 1, thereby avoiding the impact between the oppositely arranged reef breaking cones 3.

[0033] Reference Figure 1 and Figure 2 , as a preferred way, the second driving device is further provided outside the boiler slag discharge hopper 1, and the driving end of the second driving device is provided with a beating device for beating the outer wall of the boiler slag discharge hopper 1. By setting the beating device, the adhesion of the reef blocks to the inner wall of the boiler slag discharge hopper 1 can be avoided.

[0034] It should be noted that the second driving device can drive the beating device to reciprocally hammer the outer wall of the boiler slag discharge hopper 1, and the second driving device is supported by the support provided outside the boiler slag discharge hopper 1.

[0035] Reference Figure 1 and Figure 2 , as a preferred way, the beating device is a flexible beating hammer, which can absorb the impact load in the beating process and reduce the mechanical stress of the equipment.

[0036] Reference Figure 1 and Figure 2 , as an embodiment, the flexible beating hammer comprises a beating hammer body and a hammer head connected with the beating hammer body, the beating hammer body is made of one of carbon steel, high manganese steel or high chromium cast iron, and the hammer head is made of one of polyurethane or silicone rubber. The beating hammer body can ensure the strength of the beating hammer, and the hammer head can ensure the flexibility of the beating hammer during hammering, thereby avoiding the impact load.

[0037] Reference Figure 1 and Figure 2 , as an embodiment, the flexible beating hammer is connected with the driving end of the second driving device through a flexible pad or a spring. The flexible connection generated by the flexible pad or the spring can absorb the impact energy in the beating process and reduce the mechanical stress of the equipment.

[0038] It should be noted that the first driving device and the second driving device are both air cylinders 8, and the air cylinders 8 are arranged in at least two rows in the height direction of the boiler slag discharge hopper 1. The multiple rows of air cylinders 8 can disperse the slag impact force to multiple points to reduce stress concentration, and when a single row of air cylinders 8 fails, the air cylinders 8 in other rows can still maintain the slag discharge capacity to avoid complete system failure.

[0039] Reference Figure 3 As an embodiment, a compressed air tank 4 connected with the air cylinder 8 is further included, and the compressed air tank 4 is provided with an air outlet valve 6 and a reversing electromagnetic valve 7 between the compressed air tank 4 and the air cylinder 8. The compressed air tank 4 is provided with an air inlet valve 5 for charging the compressed air tank 4, and a control cabinet 11 for controlling the opening and closing of the air outlet valve 6 and the reversing electromagnetic valve 7 to realize the reciprocating motion of the air cylinder 8 is further included. The air source of the air cylinder 8 is connected to the corresponding reversing electromagnetic valve 7, the compressed air of the reversing electromagnetic valve 7 is provided by the compressed air tank 4, the power supply of the coil of the reversing electromagnetic valve 7 is connected to the control cabinet 11, and the control cabinet 11 is configured with a power supply module, a button, a wiring terminal, a PLC controller. The control cabinet 11 has the functions of manual, remote and automatic operation to realize different control functions. The control of the reversing electromagnetic valve 7 and the air outlet valve 6 is realized through program control, and finally the control of the air cylinder 8 is realized to realize automatic reef poking, and the inner wall of the boiler slag discharge hopper 1 can be loosened for 24 hours without interruption.

[0040] It should be noted that the compressed air tank 4 is further provided with a pressure gauge 9 and a pressure switch 10, and the pressure gauge 9 and the pressure switch 10 are electrically connected with the control cabinet 11.

[0041] It should be noted that for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic ash removal device for boiler ash discharge port, characterized in that, The device includes a first drive unit disposed outside the boiler ash discharge hopper and a reef-breaking cone disposed inside the boiler ash discharge hopper. The drive end of the first drive unit extends into the boiler ash discharge hopper and is connected to the reef-breaking cone. The reef-breaking cone is located above a reinforcing tie rod inside the boiler ash discharge hopper. At least two first drive units are provided, and the first drive units are arranged circumferentially along the side wall of the boiler ash discharge hopper.

2. The automatic ash removal device for boiler ash discharge port according to claim 1, characterized in that, The adjacent reef-breaking cones are installed at different heights at the drive end of the first drive device.

3. The automatic ash removal device for boiler ash discharge port according to claim 1, characterized in that, The outer diameter of the reef-breaking cone on the side closer to the driving end of the first driving device is larger than the outer diameter on the side farther away from the driving end of the first driving device.

4. The automatic ash removal device for boiler ash discharge port according to claim 1, characterized in that, The side of the reef-breaking cone away from the driving end of the first driving device is a plane, and the first driving device drives the reef-breaking cone to make the plane fit against the inner wall of the boiler ash discharge hopper away from the first driving device.

5. The automatic ash removal device for boiler ash discharge port according to claim 1, characterized in that, A second driving device is also provided on the outside of the boiler ash discharge hopper, and the driving end of the second driving device is provided with a vibrating device for vibrating the outer wall of the boiler ash discharge hopper.

6. The automatic ash removal device for boiler ash discharge port according to claim 5, characterized in that, The vibrating device is a flexible vibrating hammer.

7. The automatic ash removal device for boiler ash discharge port according to claim 6, characterized in that, The flexible vibratory hammer includes a vibratory hammer body and a hammer head connected to the vibratory hammer body. The vibratory hammer body is made of carbon steel, high manganese steel or high chromium cast iron, and the hammer head is made of polyurethane or silicone rubber.

8. The automatic ash removal device for boiler ash discharge port according to claim 6, characterized in that, The flexible vibratory hammer is connected to the drive end of the second drive device via a flexible pad or spring.

9. The automatic ash removal device for boiler ash discharge port according to claim 5, characterized in that, Both the first and second driving devices are cylinders, and the cylinders are arranged in at least two rows in the height direction of the boiler slag discharge hopper.

10. The automatic ash removal device for boiler ash discharge port according to claim 9, characterized in that, It also includes a compressed air tank connected to the cylinder, an outlet valve and a reversing solenoid valve disposed between the compressed air tank and the cylinder, an inlet valve disposed on the compressed air tank, and a control cabinet for controlling the opening and closing of the outlet valve and the reversing solenoid valve to realize the reciprocating motion of the cylinder.

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