Deslagging device of garbage incinerator

Abstract

The utility model provides a slag discharging device of a garbage incinerator. The slag discharging device of the garbage incinerator solves the problems that an existing slag discharging device of the garbage incinerator is prone to slipping and chain falling and short in service life. A body is included; the machine body comprises an upper scraping table and a lower scraping table which are connected with each other, driven wheel assemblies are arranged on the two sides of the upper scraping table, driving wheel assemblies are arranged on the two sides of the lower scraping table, chains wrap the driving wheel assemblies and the driven wheel assemblies on the same sides, and a plurality of scraping plates are arranged between the chains on the two sides of the machine body. A guide wheel assembly tightly attached to the chain is arranged at the joint of the upper scraping table and the lower scraping table. A limiting wheel assembly matched with the chain and a speed sensor used for detecting the speed of the chain are arranged on the machine body, and the limiting wheel assembly and the speed sensor are electrically connected with the PLC. The device is widely applied to the technical field of garbage treatment equipment.

Description

Technical Field

[0001] The present application relates to the technical field of garbage disposal equipment, and more specifically, to a slag removal device for a garbage incinerator. Background Art

[0002] In recent years, with economic development and population growth, the amount of domestic waste has increased year by year. Traditional waste disposal methods such as landfill can no longer meet current needs. Incineration is currently the most important waste disposal method, which has gradually replaced landfill and is widely used around the world. Waste incineration refers to burning waste in an incinerator to release and recover heat energy for heating or power generation. Compared with landfill, incineration effectively reduces the volume of waste and achieves energy recovery.

[0003] In actual applications, the residue after incineration is transferred to the slag discharge device through the grate. Some fine residues will fall into the bottom of the incinerator from the gaps between the grates. The slag discharge device needs to collect these missed residues and transport them to the slag discharge device. The residue enters the slag discharge device through the slag discharge port of the incinerator, enters the water seal tank, is cooled and settled by cooling water, and is transported to the slag discharge device through a chain with a scraper. The lower half of the existing slag discharge device is usually set in the water seal tank. Part of the chain and the fixed wheel need to be immersed in water all the time. The chain is prone to falling off and slipping, affecting the operation of the slag discharge device; after the slag discharge device has been in operation for a long time, due to wear, the tension of the chains on both sides changes, resulting in different rotation speeds of the chains, which in turn causes the scrapers on the chain to be non-parallel, affecting the collection effect of the residue and the working efficiency of the slag discharge device, increasing the wear of the scraper and chain by the residue, and shortening the service life of the slag discharge device. Utility Model Content

[0004] In order to solve the above-mentioned existing problems, the technical solution adopted by the utility model is: to provide a stable and durable garbage incinerator slag discharge device, including a machine body; the machine body includes an upper scraper and a lower scraper connected to each other, driven wheel assemblies are provided on both sides of the upper scraper, and driving wheel assemblies are provided on both sides of the lower scraper, and the driving wheel assembly and the driven wheel assembly on the same side are covered with chains, and multiple scrapers are provided between the chains on both sides of the machine body; a guide wheel assembly that is tightly attached to the chain is provided at the connection between the upper scraper and the lower scraper; a limiting wheel assembly that cooperates with the chain and a speed sensor for detecting the chain speed are provided on the machine body, and the limiting wheel assembly and the speed sensor are electrically connected to the PLC controller.

[0005] Preferably, the PLC controller is electrically connected to a tensioning assembly for adjusting the tension of the chain.

[0006] Preferably, the scrapers are evenly distributed on the chain and are parallel to each other.

[0007] Preferably, the upper scraping platform and the lower scraping platform each have a certain slope, and the upper scraping platform and the lower scraping platform are connected in a "V" shape.

[0008] Preferably, the guide wheel assembly includes two vertically distributed guide wheels, and the two guide wheels are respectively in close contact with the upper layer and the lower layer of the chain.

[0009] Preferably, a slag blocking plate is provided on the inner side of the guide wheel assembly.

[0010] Preferably, the scraper is an arc-shaped plate, and the arc-shaped plate is bent toward the slag discharge direction of the machine body.

[0011] Preferably, a water tank is provided between the upper scraping platform and the lower scraping platform, and the surfaces of the upper scraping platform and the lower scraping platform are made of waterproof material.

[0012] The beneficial effects of the utility model are as follows: a limiting wheel assembly cooperating with the chain and a speed sensor for detecting the chain speed are provided on the body of the slag discharge device; the limiting wheel assembly, the speed sensor and the PLC controller are electrically connected; when the chain tension changes and causes inconsistent speeds on both sides, the PLC controller senses and controls the limiting wheel assembly through the speed sensor to make it cooperate with the chain until the chain speed is the same as the set working speed, thereby avoiding the chain from falling off or slipping due to inconsistent speeds on both sides, reducing the wear between the chain and the residue and the body, and improving the working efficiency and operating stability of the slag discharge device; the structure is simple and the equipment cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0016] Figure 3 for Figure 1 Middle BB section view.

[0017] Explanation of symbols in the figure: 1. Machine body; 2. Water tank; 3. Upper scraper table; 4. Lower scraper table; 5. Driven wheel assembly; 6. Driving wheel assembly; 7. Chain; 8. Scraper; 9. Guide wheel assembly; 10. Limiting wheel assembly; 11. Slag baffle plate; 12. PLC controller. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] A slag removal device for a waste incinerator provided in an embodiment of the present application is now described in detail.

[0022] See also Figure 1 , is a schematic diagram of the structure of the utility model, the slag discharge device of the garbage incinerator comprises a body 1; the body 1 comprises an upper scraper 3 and a lower scraper 4 connected to each other, a driven wheel assembly 5 is arranged on both sides of the upper scraper 3, and a driving wheel assembly 6 is arranged on both sides of the lower scraper 4, and a chain 7 is coated on the driving wheel assembly 6 and the driven wheel assembly 5 on the same side, and a plurality of scrapers 8 are arranged between the chains 7 on both sides of the body 1; a guide wheel assembly 9 is arranged at the connection between the upper scraper 3 and the lower scraper 4, which is in close contact with the chain 7 to control the direction of the chain 7, so that the chain 7 is tensioned to avoid slipping; a limiting wheel assembly 10 cooperating with the chain 7 and a speed sensor for detecting the speed of the chain 7 are arranged on the body 1, and the limiting wheel assembly 10 and the speed sensor are electrically connected to the PLC controller 12.

[0023] When in use, the driving wheel assembly 6 rotates under the action of a driving device such as a motor, driving the chain 7, the guide wheel assembly 9, and the driven wheel assembly 5 to rotate, and the scraper 8 moves toward the slag discharge device along with the chain 7. The residue is transferred to the slag discharge device along with the chain 7 under the push of the scraper 8.

[0024] See also Figure 2After the slag discharge device has been running for a long time, the tension of the chain 7 changes due to wear, resulting in inconsistent speeds of the chains 7 on both sides. At this time, the speed sensor transmits the abnormal speed to the PLC controller 12, and the PLC controller 12 controls the limit wheel assembly 10 to press down, so that it cooperates with the chain 7 with changed tension, controls the speed of the chain 7 on this side, until the chain 7 speed is the same as the set working speed, and then lifts the limit wheel assembly 10. Ensure that the speeds of the chains 7 on both sides are consistent to avoid chain drop and slipping due to inconsistent speeds; ensure that the scraper 8 moves in parallel, improve the collection effect of the residue, reduce the wear between the chain 7 and the residue and the body 1, and improve the working efficiency and operation stability of the slag discharge device.

[0025] In one embodiment, the PLC controller 12 is also electrically connected to a tensioning assembly for adjusting the tension of the chain 7. Specifically, the tensioning assembly can be a screw rod adjustment assembly, a hydraulic rod lifting adjustment assembly, etc. The tensioning assembly is a prior art and will not be described in detail here.

[0026] When the PLC controller 12 controls the limiting wheel assembly 10 to adjust the speed of the chain 7, the PLC controller 12 simultaneously controls the tensioning assembly to adjust the tension of the chain 7. When the chain 7 returns to the set working speed, the tensioning assembly completes the tensioning adjustment of the chain 7 to ensure that the tension of the chains 7 on both sides is the same, thereby avoiding the stagnation and deviation of the chains 7. Under the joint action of the limiting wheel assembly 10 and the tensioning assembly, the PLC controller 12 quickly and accurately completes the adjustment of the speed and tension of the chain 7, thereby ensuring the normal operation of the slag discharge device and improving the working efficiency and durability of the slag discharge device.

[0027] Furthermore, the scrapers 8 are evenly distributed on the chain 7 , the scrapers 8 are parallel to each other, and the residue is evenly distributed along with the scrapers 8 driven by the driving wheel assembly 6 .

[0028] Furthermore, the upper scraper 3 and the lower scraper 4 each have a certain slope, and the height difference between the incinerator slag discharge port and the connection between the upper scraper 3 and the lower scraper 4 is used to recover part of the kinetic energy and reduce the energy consumption of the rotation of the chain 7. The upper scraper 3 and the lower scraper 4 are connected in a "V" shape, and only one set of guide wheel assemblies 9 need to be set at the connection between the upper scraper 3 and the lower scraper 4. The structure is simple. Other structures need to set multiple guide wheel assemblies 9 on the same side to realize the steering of the chain 7, and there are many fault points. Compared with other structures, the structure is stable and the maintenance risk is low.

[0029] Furthermore, the guide wheel assembly 9 includes two vertically distributed guide wheels, which are respectively tightly fitted with the upper and lower layers of the chain 7; in order to reduce the interference of impurities on the guide wheel assembly 9 and improve the stability of the guide wheel assembly 9, the guide wheel assembly 9 is usually provided with drain pipes and drain valves and other structures for discharging impurities on both sides. The drain pipes and drain valves will have a slight impact on the steering of the chain 7. Therefore, it is necessary to set two vertically distributed guide wheels, which are respectively tightly fitted with the upper and lower layers of the chain 7 to ensure the normal steering of the chain 7.

[0030] See also Figure 1 , Figure 3 Furthermore, a slag baffle 11 is provided on the inner side of the guide wheel assembly 9 to prevent the residue from entering the guide wheel assembly 9 during transmission and affecting the steering of the chain 7, thereby reducing the wear of the guide wheel assembly 9 by the residue.

[0031] In one embodiment, the scraper 8 is an arc-shaped plate, which is bent in the slag discharge direction of the machine body 1 to reduce the impact force and friction resistance when the residue is discharged from the slag discharge port of the incinerator. The arc-shaped plate has a certain guiding effect on the residue, thereby improving the collection effect of the scraper 8 on the residue.

[0032] See also Figure 1 A water tank 2 is provided between the upper scraping table 3 and the lower scraping table 4. A large amount of cooling water is provided in the water tank 2 to cool and settle the residue on the slag discharge device. The surfaces of the upper scraping table 3 and the lower scraping table 4 are made of waterproof materials. The residue is always located in the water tank 2 during transportation, and the water surface forms a sealed barrier to prevent the leakage of harmful gases and corrosive substances accompanying the residue, thereby reducing the risk of environmental pollution. Harmful gases and corrosive substances do not directly contact the slag discharge device, thereby reducing the corrosiveness to the slag discharge device and extending the service life of the slag discharge device.

[0033] The upper layer of the chain 7 is located in the water trough 2 on the upper scraping platform 3 and the lower scraping platform 4, and is used to transport residues. The lower layer of the chain 7 is located below the surface of the upper scraping platform 3 and the lower scraping platform 4, and is used for rotation and circulation. The chain 7 is always rotating in a circular motion, and both the upper and lower layers are rotating in a circular motion, and will not be immersed in water for a long time. The upper scraping platform 3 and the lower scraping platform 4 each have a certain slope, and the driven wheel assembly 5 and the driving wheel assembly 6 are always above the water surface, so the chain 7 is not easy to fall off or slip.

[0034] The working process of the utility model is as follows: when in use, the residue discharged from the slag discharge port of the incinerator falls into the water trough 2, and falls onto the scraper 8 after cooling and settling, and moves to the slag discharge device along with the scraper 8 and the chain 7 under the action of the driving wheel assembly 6; when the tension and speed of the chain 7 on one side change due to wear, the speed sensor senses and transmits it to the PLC controller 12, and the PLC controller 12 controls the limiting wheel assembly 10 to press down, so that it cooperates with the chain 7, controls the speed of the chain 7 on this side, until its speed is the same as the set working speed, and then lifts the limiting wheel assembly 10; at the same time, the PLC controller 12 controls the tensioning assembly to adjust the tension of the chain 7 until the tension of the chains 7 on both sides is the same.

[0035] In the utility model, the machine body 1 is provided with a limit wheel assembly 10 matched with the chain 7 and a speed sensor for detecting the speed of the chain 7, and the limit wheel assembly 10, the speed sensor and the PLC controller 12 are electrically connected; when the tension of the chain 7 changes and the speeds on both sides are inconsistent, the speed sensor transmits the abnormal speed to the PLC controller 12, and the PLC controller 12 controls the limit wheel assembly 10 to match the chain 7 until the speed of the chain 7 is the same as the set working speed, so as to avoid the chain 7 from falling off and slipping due to the inconsistent speeds on both sides, reduce the wear between the chain 7 and the residue and the machine body, and improve the working efficiency and operation stability of the slag discharge device. The slag discharge device for a garbage incinerator provided by this embodiment has a simple structure and low equipment cost.

[0036] The above-mentioned specific implementation methods do not cover the entire protection scope of the utility model. Modifications or equivalent replacements of the utility model should all fall within the patent coverage requirements of the utility model. In the utility model, the above-mentioned embodiments are only used to illustrate the technical solution of the present application, rather than to limit it; although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above-mentioned embodiments, or replace some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A slag removal device for a garbage incinerator, comprising a body; characterized in that: The machine body includes an upper scraper table and a lower scraper table connected to each other, driven wheel assemblies are provided on both sides of the upper scraper table, and driving wheel assemblies are provided on both sides of the lower scraper table, the driving wheel assembly and the driven wheel assembly on the same side are covered with chains, and a plurality of scrapers are provided between the chains on both sides of the machine body; a guide wheel assembly tightly attached to the chain is provided at the connection between the upper scraper table and the lower scraper table; a limiting wheel assembly cooperating with the chain and a speed sensor for detecting the chain speed are provided on the machine body, and the limiting wheel assembly and the speed sensor are electrically connected to the PLC controller.

2. A slag removal device for a waste incinerator as claimed in claim 1, characterized in that: The PLC controller is electrically connected to a tensioning assembly for adjusting the tension of the chain.

3. A slag removal device for a garbage incinerator as claimed in claim 1, characterized in that: The scrapers are evenly distributed on the chain and are parallel to each other.

4. A slag removal device for a garbage incinerator as claimed in claim 1, characterized in that: The upper scraping platform and the lower scraping platform each have a certain slope, and the upper scraping platform and the lower scraping platform are connected in a "V" shape.

5. A slag removal device for a garbage incinerator as claimed in claim 4, characterized in that: The guide wheel assembly comprises two vertically distributed guide wheels, and the two guide wheels are respectively in close contact with the upper layer and the lower layer of the chain.

6. A slag removal device for a garbage incinerator as claimed in claim 1, characterized in that: A slag blocking plate is provided on the inner side of the guide wheel assembly.

7. A slag removal device for a garbage incinerator as claimed in claim 3, characterized in that: The scraper is an arc-shaped plate, and the arc-shaped plate is bent toward the slag discharge direction of the machine body.

8. The slag removal device for a waste incinerator according to any one of claims 1 to 7, characterized in that: A water tank is arranged between the upper scraping platform and the lower scraping platform, and the surfaces of the upper scraping platform and the lower scraping platform are made of waterproof material.

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