Automatic sealing upper fire grate transition plate

Abstract

The utility model discloses an automatic sealing upper fire grate transition plate which comprises a transition plate body and a sealing baffle, the shape of the sealing baffle and the shape of the bottom face of the transition plate body are both matched with the motion trail of fire grate segments, and a first limiting baffle and a second limiting baffle are arranged at the front end and the rear end of the bottom of the transition plate body correspondingly. A mounting groove used for containing the sealing baffle is formed between the first limiting baffle and the second limiting baffle, the depth of the mounting groove is larger than the thickness of the sealing baffle, the sealing baffle is movably arranged in the mounting groove, and a gap is formed between the sealing baffle and the lower bottom face of the transition plate body. When the fire grate segments move downwards, the sealing baffles can be jacked up to move upwards, and when the fire grate segments move downwards, the sealing baffles move downwards by means of the gravity of the sealing baffles and are attached to the fire grate segments all the time. The gap between the transition plate and the grate segment can be automatically eliminated, the amount of raw materials falling into an ash hopper is reduced, the operation stability of equipment is further improved, and the frequency of furnace shutdown maintenance is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of waste incineration power generation, and in particular to an automatic sealing upper grate transition plate. Background Art

[0002] With the development of national economy and urban construction, the amount of garbage generated is increasing, and land resources are becoming increasingly scarce. Waste incineration power generation technology has become a new trend and new hot spot for many cities to solve the problem of garbage disposal. The waste incineration method can reduce the volume of garbage by 90% and the amount by 70%-80%, greatly reducing the land occupation area, meeting the requirements of reduction; the waste heat from waste incineration can also be used for heating and power generation, achieving the purpose of resource recycling.

[0003] The grate is one of the core components of the waste incinerator. The movement mode of the grate of the incinerator is longitudinal movement, which includes both forward and backward reciprocating movement and up and down undulating movement. The upper grate transition plate is fixed on the frame of the incinerator, and the gap between it and the grate plate is about 6-10mm. Since the grate plate moves up, down, forward and backward, this gap is easy to get stuck with garbage, resulting in increased output of the hydraulic cylinder, severe wear of the transition plate, or even wear through. After running for a period of time, the roller of the grate beam wears, and the grate beam slowly sinks, causing this gap to gradually increase. Raw materials and leachate will fall into the ash hopper from this gap, increasing the slag reduction rate and even causing the ash hopper to catch fire. In addition, if the upper grate transition plate is to be replaced, the refractory mud must first be knocked off, and the refractory mud must be re-poured after the new transition plate is installed, which is very time-consuming and labor-intensive. For this reason, the utility model proposes an automatic sealing upper grate transition plate. Utility Model Content

[0004] The embodiment of the present application provides an automatically sealed upper grate transition plate, which can automatically eliminate the gap between the transition plate and the grate plate, reduce the amount of raw material falling into the ash hopper, thereby improving the operating stability of the equipment and reducing the number of shutdowns for maintenance.

[0005] In view of this, the present application provides an automatically sealed upper grate transition plate, comprising: a transition plate body and a sealing baffle;

[0006] The shape of the sealing baffle and the shape of the bottom surface of the transition plate body are both adapted to the movement trajectory of the grate plate;

[0007] The front and rear ends of the bottom of the transition plate body are respectively provided with a first limit baffle and a second limit baffle;

[0008] A mounting groove for placing the sealing baffle is formed between the first limiting baffle and the second limiting baffle;

[0009] The depth of the mounting groove is greater than the thickness of the sealing baffle;

[0010] The sealing baffle is movably arranged in the mounting groove, and there is a gap between the sealing baffle and the lower bottom surface of the transition plate body, so that when the grate plate moves upward, the sealing baffle can be lifted up and displaced upward, and when the grate plate moves downward, the sealing baffle moves downward by its own gravity and always fits with the grate plate.

[0011] Optionally, the first limiting baffle and the second limiting baffle are both L-shaped baffles.

[0012] Optionally, the sealing baffle is movably inserted into the mounting groove, and the front and rear ends of the sealing baffle are slidably connected to the first limit baffle and the second limit baffle respectively.

[0013] Optionally, a fixing hole for fixing the transition plate body to the incinerator frame is provided on the rear side of the transition plate body.

[0014] Optionally, the sealing baffle includes a first horizontal section, an inclined section and a second horizontal section;

[0015] The inclined section is located between the first horizontal section and the second horizontal section, and the length of the first horizontal section is greater than the length of the second horizontal section.

[0016] It can be seen from the above technical scheme that the embodiments of the present application have the following advantages: the automatic sealing upper grate transition plate comprises a transition plate body and a sealing baffle, wherein the sealing baffle can move up and down in the installation groove, and when the grate plate moves back and forth and up and down with the grate beam, the sealing baffle can rely on its own gravity to always fit with the grate plate, and then can automatically eliminate the gap between the transition plate and the grate plate in a dynamic state, ensuring that the transition plate and the grate plate are always fitted together, so that the lateral gap at the top of the grate approaches zero, thereby effectively reducing the amount of raw material falling into the ash hopper and reducing the ash ignition rate, thereby extending the service life of the upper grate transition plate, reducing the number of shutdowns for maintenance, and improving the stability of equipment operation. In addition, since the automatic sealing upper grate transition plate only needs to replace the sealing baffle and does not need to replace the transition plate body, the operation and maintenance costs can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the automatic sealing upper grate transition plate in the embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the position of the automatically sealed upper grate transition plate and the grate sheet in the embodiment of the present application when the grate runs to the front end;

[0019] Figure 3 It is a schematic diagram of the position of the automatically sealed upper grate transition plate and the grate sheet in the embodiment of the present application when the grate runs to the rear end;

[0020] Wherein, the accompanying drawings are marked as follows:

[0021] 1-transition plate body, 2-sealing baffle, 3-grate plate, 4-first limit baffle, 5-second limit baffle, 6-installation groove, 7-fixing hole. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] This application provides an embodiment of an automatic sealing upper grate transition plate. Figures 1 to 3 .

[0026] The automatic sealing upper grate transition plate in this embodiment includes: a transition plate body 1 and a sealing baffle 2. The shapes of the sealing baffle 2 and the bottom surface of the transition plate body 1 are adapted to the movement trajectory of the grate plate 3. The front and rear ends of the bottom of the transition plate body 1 are respectively provided with a first limit baffle 4 and a second limit baffle 5. A mounting groove 6 for placing the sealing baffle 2 is formed between the first limit baffle 4 and the second limit baffle 5. The depth of the mounting groove 6 is greater than the thickness of the sealing baffle 2. The sealing baffle 2 is movably arranged in the mounting groove 6, and there is a gap between the sealing baffle 2 and the lower bottom surface of the transition plate body 1, so that when the grate plate 3 moves upward, the sealing baffle 2 can be lifted up and displaced upward. When the grate plate 3 moves downward, the sealing baffle 2 moves downward by its own gravity and always fits with the grate plate 3.

[0027] It should be noted that: the automatic sealing upper grate transition plate includes a transition plate body 1 and a sealing baffle 2, wherein the sealing baffle 2 can move up and down in the installation groove 6, and when the grate plate 3 moves back and forth and up and down with the grate beam, the sealing baffle 2 can rely on its own gravity to always fit with the grate plate 3, and then can automatically eliminate the gap between the transition plate and the grate plate 3 in a dynamic state, to ensure that the transition plate and the grate plate 3 are always fitted together, so that the lateral gap at the top of the grate approaches zero, thereby effectively reducing the amount of raw material falling into the ash hopper and reducing the ash ignition rate, thereby extending the service life of the upper grate transition plate, reducing the number of shutdowns for maintenance, and improving the stability of equipment operation. In addition, since the automatic sealing upper grate transition plate only needs to replace the sealing baffle 2 and does not need to replace the transition plate body 1, the operation and maintenance costs can be effectively reduced.

[0028] The above is an embodiment of the present invention provided by the embodiment of the automatic sealing upper grate transition plate of the first embodiment, the following is an embodiment of the present invention provided by the embodiment of the automatic sealing upper grate transition plate of the second embodiment, please refer to the embodiment of the present invention for details. Figures 1 to 3 .

[0029] The automatic sealing upper grate transition plate in the present embodiment comprises: a transition plate body 1 and a sealing baffle 2. The shapes of the sealing baffle 2 and the bottom surface of the transition plate body 1 are adapted to the movement trajectory of the grate plate 3. A first limiting baffle 4 and a second limiting baffle 5 are respectively arranged at the front and rear ends of the bottom of the transition plate body 1. A mounting groove 6 for placing the sealing baffle 2 is formed between the first limiting baffle 4 and the second limiting baffle 5. The depth of the mounting groove 6 is greater than the thickness of the sealing baffle 2. The sealing baffle 2 is movably arranged in the mounting groove 6, and there is a gap between the sealing baffle 2 and the lower bottom surface of the transition plate body 1. Since the first limiting baffle 4 and the second limiting baffle 5 limit the forward and backward movement of the sealing baffle 2, when the grate plate 3 moves upward, the sealing baffle 2 is lifted up and displaced upward. When the grate plate 3 moves downward, the sealing baffle 2 moves downward by its own gravity and is always in contact with the grate plate 3.

[0030] It can be understood that since the sealing baffle 2 is below the transition plate body 1, it is not easy to get stuck with garbage; the shape of the sealing baffle 2 and the shape of the bottom surface of the transition plate body 1 are both adapted to the movement trajectory of the grate plate 3 and will not interfere with the movement of the grate plate 3; the sealing baffle 2 moves up and down according to the movement trajectory of the grate plate 3, and its bottom end is always in contact with the grate plate 3, which can eliminate the gap between the transition plate and the grate plate 3 in a dynamic state.

[0031] The first limit baffle 4 and the second limit baffle 5 are both L-shaped baffles, so that the sealing baffle 2 can be inserted or pulled out from the left and right sides of the transition plate body 1, which is convenient for installation, replacement and later maintenance.

[0032] The sealing baffle 2 is movably inserted into the mounting groove 6 , and the front and rear ends of the sealing baffle 2 are slidably connected to the first limit baffle 4 and the second limit baffle 5 respectively.

[0033] The rear side of the transition plate body 1 is provided with a fixing hole 7 for fixing the transition plate body 1 on the incinerator frame. Specifically, when in use, the transition plate body 1 is fixed on the incinerator frame, and adjacent transition plates are installed together to limit the left and right movement of the sealing baffle 2.

[0034] Specifically, the sealing baffle 2 includes a first horizontal section, an inclined section and a second horizontal section, the inclined section is located between the first horizontal section and the second horizontal section, and the length of the first horizontal section is greater than the length of the second horizontal section. The shape of the bottom surface of the transition plate body 1 is the same as that of the sealing baffle 2.

[0035] In specific implementation, the sealing baffle 2 is installed into the installation groove 6 at the bottom of the transition plate body 1 from the left or right side, and then the transition plate body 1 is installed on the grate frame. The sealing baffle 2 always fits with the lower grate sheet 3 by its own gravity, thereby automatically eliminating the gap between the transition plate and the grate sheet 3. When replacing, the sealing baffle 2 can be pulled out from the transition plate body 1.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic sealing upper grate transition plate, characterized in that: include: Transition plate body and sealing baffle; The shape of the sealing baffle and the shape of the bottom surface of the transition plate body are both adapted to the movement trajectory of the grate plate; The front and rear ends of the bottom of the transition plate body are respectively provided with a first limit baffle and a second limit baffle; A mounting groove for placing the sealing baffle is formed between the first limiting baffle and the second limiting baffle; The depth of the mounting groove is greater than the thickness of the sealing baffle; The sealing baffle is movably arranged in the mounting groove, and there is a gap between the sealing baffle and the lower bottom surface of the transition plate body, so that when the grate plate moves upward, the sealing baffle can be lifted up and displaced upward, and when the grate plate moves downward, the sealing baffle moves downward by its own gravity and always fits with the grate plate.

2. The automatic sealing upper grate transition plate according to claim 1, characterized in that: The first limiting baffle plate and the second limiting baffle plate are both L-shaped baffle plates.

3. The automatic sealing upper grate transition plate according to claim 2, characterized in that: The sealing baffle is movably arranged in the installation groove, and the front and rear ends of the sealing baffle are respectively slidably connected with the first limiting baffle and the second limiting baffle.

4. The automatic sealing upper grate transition plate according to claim 1, characterized in that: A fixing hole for fixing the transition plate body on the incinerator frame is provided on the rear side of the transition plate body.

5. The automatic sealing upper grate transition plate according to claim 1, characterized in that: The sealing baffle comprises a first horizontal section, an inclined section, and a second horizontal section; The inclined section is located between the first horizontal section and the second horizontal section, and the length of the first horizontal section is greater than the length of the second horizontal section.

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