Slag deposition alarm device for air chamber of garbage incinerator

Abstract

The utility model belongs to the technical field of garbage disposal equipment, and provides a garbage incinerator air chamber slag deposition alarm device which comprises an air chamber and a pressure transmitter connected with the air chamber, at least three installation pipes are arranged on the rear wall of the air chamber, the pipe center direction of the installation pipes is parallel to the height direction of the rear wall of the air chamber, and the pressure transmitter is connected with the air chamber. A plurality of photoresistors distributed along the length of the mounting pipe are arranged on the mounting pipe, an alarm controller electrically connected with the photoresistors is arranged on the outer side of the air chamber, and a power module, an alarm module and a judgment circuit connected with the photoresistors, the power module and the alarm module are arranged in the alarm controller. The alarm controller is provided with alarm lamps corresponding to the photoresistors at different positions, the inner wall, opposite to the side where the mounting pipe is located, of the air chamber is provided with a plurality of light sources, and each light source comprises a mounting base and three transmitting ports. The device is reasonable in design, simple in structure, good in early warning effect, beneficial to guaranteeing the operation efficiency of the garbage incinerator and suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage processing equipment and relates to a slag accumulation alarm device in a wind chamber of a garbage incinerator. Background Art

[0002] Commonly used garbage disposal methods: landfill and incineration. Incineration and incineration power generation method: Its advantages are thorough and fast treatment, and it also realizes the resource treatment of garbage. The garbage incinerator consists of four major systems: garbage pre-treatment system, incineration system, smoke biochemical dust removal system and gas generator (auxiliary ignition and incineration), integrating automatic feeding, screening, drying, incineration, ash cleaning, dust removal and automatic control. As one of the key equipment of the incinerator, the wind chamber has two main functions. One is to supply air to the grate in different areas. When the grate in this area supplies air evenly, the garbage in this area can be fully dried or stably burned; the other is to collect the gaps between the grate pieces, the air holes and the ash falling between the grate and the side wall, and use pneumatic ash conveying and other methods to discharge it in time. When the ash in the wind chamber falls into the wind chamber and accumulates to a certain extent, it must be started by warning and discharged, otherwise it will block the air inlet pipe at the least, affecting the combustion efficiency, and it will overturn the grate at the worst, directly affecting the production progress.

[0003] The existing patent CN202311289832.5 discloses a device and control method for monitoring and automatically cleaning ash in the wind chamber of a domestic waste incinerator. The device includes: a level meter is provided at the lower part of the wind chamber, a ash discharge valve is provided at the bottom of each row of wind chambers, an ash trough is provided below the wind chamber, and the ash trough is tilted downward; a compressed air storage bag is provided at the upper opening of the ash trough, and a slag drop well is provided at the lower opening of the ash trough. The compressed air storage bag is connected to the jet pipe through an electromagnetic pulse valve, and the jet pipe faces the ash trough; the compressed air storage bag is connected to the pressure transmitter through a pressure pipe. The device uses a mechanical level meter to measure the accumulated slag, but its measurement sensitivity is poor, the accuracy of the reported ash data is poor, and the timing of starting the slag cleaning depends on the measurement signal of the pressure transmitter. In this way, the double safety mechanism becomes a single mechanism, which affects the actual control efficiency of the operation of the waste incinerator. Utility Model Content

[0004] In view of the above-mentioned existing technical problems, the utility model proposes a garbage incinerator wind chamber slag accumulation alarm device which has reasonable design, simple structure, good early warning effect and is beneficial to ensuring the operating efficiency of the garbage incinerator.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the slag accumulation alarm device in the wind chamber of a waste incinerator provided by the utility model includes a wind chamber and a pressure transmitter connected to the wind chamber, the rear wall of the wind chamber is provided with at least three mounting tubes, the tube core direction of the mounting tubes is parallel to the height direction of the rear wall of the wind chamber, the mounting tubes are provided with a plurality of photoresistors distributed along the length thereof, an alarm controller electrically connected to the photoresistor is provided on the outside of the wind chamber, a power module, an alarm module and a judgment circuit connected to the photoresistor, the power module and the alarm module are provided in the alarm controller, alarm lights corresponding to the photoresistors at different positions are provided on the alarm controller, the wind chamber is provided with a plurality of light sources on the inner wall opposite to the side where the mounting tube is located, the light source includes a mounting seat, and the mounting seat is provided with three transmitting ports radially corresponding to the directions where the three mounting tubes are located.

[0006] Preferably, three pairs of mounting rods are provided on the rear wall of the air chamber, and the mounting rods are slidably matched with the mounting holes provided on the mounting tube. The interior of the mounting tube is used to pass the wires connecting the photoresistor and the judgment circuit. The side of the mounting tube facing the rear wall of the air chamber is a flat surface, and the side facing away from the rear wall of the air chamber is a U-shaped curved surface.

[0007] Preferably, the photoresistor comprises a ceramic substrate with a triangular prism structure, the triangular slope of the ceramic substrate faces the direction of the emission port, a semiconductor photosensitive layer and a high temperature resistant resin layer are provided on the ceramic substrate, and a metal electrode and a metal pin are provided on the semiconductor photosensitive layer.

[0008] Compared with the prior art, the advantages and positive effects of the utility model are:

[0009] 1. The utility model provides a slag accumulation alarm device for a waste incinerator wind chamber. A light source emits light to photoresistors at different positions. When the photoresistors are blocked by slag accumulation and cannot receive light, they will trigger an alarm controller to alarm and indicate the material level at that position. This light detection method can improve the system's sensitivity to slag accumulation depth warning, and the original pressure transmitter of the supporting system can form a double safety mechanism. It has a reasonable design, a simple structure, a good warning effect, and is conducive to ensuring the operating efficiency of the waste incinerator, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1A schematic diagram of the structure of a slag accumulation alarm device for a waste incinerator wind chamber provided in an embodiment;

[0012] Figure 2 for Figure 1 A magnified schematic diagram of the structure in the middle;

[0013] Figure 3 A cross-sectional view of the mounting tube and photoresistor;

[0014] Figure 4 is a cross-sectional view of a photoresistor;

[0015] Figure 5 is a top view of the light source;

[0016] In the above figures, 1. air chamber; 2. pressure transmitter; 3. mounting tube; 31. mounting hole; 4. photoresistor; 41. ceramic substrate; 42. semiconductor photosensitive layer; 43. high temperature resistant resin layer; 44. metal electrode; 45. metal pin; 5. alarm controller; 6. light source; 61. mounting seat; 62. transmitting port; 7. mounting rod. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Examples, such as Figures 1 to 5As shown, the utility model provides a slag accumulation alarm device for the wind chamber of a waste incinerator, comprising a wind chamber 1 and a pressure transmitter 2 connected to the wind chamber 1, wherein an ash discharge valve, an ash cleaning cylinder and an air cannon for cleaning are arranged at the bottom of the wind chamber 1, and the pressure transmitter 2 can send a signal to the control end of the air cannon and the ash discharge valve when detecting that the pressure in the wind chamber 1 is obstructed, thereby starting the ash cleaning and unloading operation. On this basis, the utility model is provided with at least three mounting tubes 3 on the rear wall of the wind chamber 1, the tube center direction of the mounting tube 3 is parallel to the height direction of the rear wall of the wind chamber 1, and a plurality of photoresistors 4 distributed along the length thereof are arranged on the mounting tube 3, and an alarm controller 5 electrically connected to the photoresistor 4 is arranged on the outer side of the wind chamber 1, and a power module, an alarm module and a judgment circuit connected to the photoresistor 4, the power module and the alarm module are arranged in the alarm controller 5, and alarm lights corresponding to the photoresistors 4 at different positions are arranged on the alarm controller 5, and a plurality of light sources 6 are arranged on the inner wall of the wind chamber 1 opposite to the side where the mounting tube 3 is located, and the light source 6 includes a mounting seat 61, and the mounting seat 61 is provided with three transmitting ports 62 radially corresponding to the directions where the three mounting tubes 3 are located.

[0020] Specifically, the light source 6 emits light to the photoresistors 4 at different positions. When the photoresistors 4 are blocked by the accumulated slag and cannot receive light, that is, the accumulated slag reaches the depth where the photoresistors 4 are located, and the judgment circuit determines that the photoresistors 4 have lost light, it will trigger the alarm module to alarm, and at the same time, the alarm light indicating the material level at that position will light up or flash frequently; further, using multiple mounting tubes 3 in the same wind chamber 1 can increase the detection range of the photoresistors 4, and the light is emitted by the corresponding transmitting ports 62. This form of using light detection to warn and report the material level can improve the system's sensitivity to the slag depth warning, and the original pressure transmitter 2 of the supporting system can constitute a double safety mechanism, which is beneficial to ensuring the operating efficiency of the waste incinerator.

[0021] In order to facilitate the adjustment of the position of the photoresistor 4 so that it is in a better corresponding position with the light, the utility model is provided with three pairs of mounting rods 7 on the rear wall of the wind chamber 1, wherein each pair of mounting rods 7 is slidably matched with the mounting holes 31 provided on the mounting tube 3, the interior of the mounting tube 3 is used to pass the wires connecting the photoresistor 4 and the judgment circuit, the side of the mounting tube 3 facing the rear wall of the wind chamber 1 is a plane and the side facing away from the rear wall of the wind chamber 1 is a U-shaped curved surface. In this way, the mounting tube 3 can be moved along the matching direction of the mounting hole 31 and the mounting rod 7 by sliding adjustment, thereby changing the actual position of the photoresistor 4, and the back of the mounting tube 3 can be docked with the rear wall of the wind chamber 1, and the sealing is maximized to reduce the amount of dust accumulated on the back of the mounting tube 3.

[0022] Since the front and rear walls of the wind chamber are usually inclined, and matching with this, the mounting tube 3 and the light source 6 are also installed in an inclined manner, and in order to improve the compatibility of the photoresistor 4 in the system, the photoresistor 4 provided by the utility model includes a ceramic substrate 41 with a triangular prism structure, the triangular inclined surface of the ceramic substrate 41 faces the direction of the emission port 62, and a semiconductor photosensitive layer 42 and a high temperature resistant resin layer 43 are arranged on the ceramic substrate 41, and a metal electrode 44 and a metal pin 45 are arranged on the semiconductor photosensitive layer 42. Among them, the ceramic substrate 41 provides an inclined basic surface for the semiconductor photosensitive layer 42, so that it can maintain a sufficient connection surface with the mounting tube 3 while facing the reflection port of the light source 6, and the high temperature resistant resin layer 43 is a transparent structure and can protect the semiconductor photosensitive layer 42 in the temperature environment of the wind chamber 1, so that the semiconductor photosensitive layer 42 and the metal electrode have a longer service life.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A slag accumulation alarm device for a waste incinerator wind chamber, comprising a wind chamber and a pressure transmitter connected to the wind chamber, characterized in that: The rear wall of the wind chamber is provided with at least three mounting tubes, the tube center direction of the mounting tubes is parallel to the height direction of the rear wall of the wind chamber, the mounting tubes are provided with a plurality of photoresistors distributed along the length thereof, an alarm controller electrically connected to the photoresistors is provided on the outer side of the wind chamber, the alarm controller is provided with a power module, an alarm module and a judgment circuit connected to the photoresistors, the power module and the alarm module, the alarm controller is provided with alarm lights corresponding to the photoresistors at different positions, the wind chamber is provided with a plurality of light sources on the inner wall opposite to the side where the mounting tubes are located, the light source includes a mounting seat, and the mounting seat is provided with three transmitting ports radially corresponding to the directions where the three mounting tubes are located.

2. The slag accumulation alarm device for the wind chamber of a garbage incinerator according to claim 1 is characterized in that: Three pairs of mounting rods are arranged on the rear wall of the air chamber, and the mounting rods are slidably matched with the mounting holes arranged on the mounting tube. The interior of the mounting tube is used to pass the wires connecting the photoresistor and the judgment circuit. The side of the mounting tube facing the rear wall of the air chamber is a flat surface, and the side facing away from the rear wall of the air chamber is a U-shaped curved surface.

3. The slag accumulation alarm device for the wind chamber of a garbage incinerator according to claim 2 is characterized in that: The photoresistor comprises a ceramic substrate with a triangular prism structure, wherein the triangular slope of the ceramic substrate faces the direction of the emission port, a semiconductor photosensitive layer and a high temperature resistant resin layer are arranged on the ceramic substrate, and a metal electrode and a metal pin are arranged on the semiconductor photosensitive layer.

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