Device for preventing material shoveling plate of chain grate machine from being blocked

Abstract

The utility model aims to provide the device for preventing the material shoveling plate of the chain grate from being blocked in order to solve the problem that the material shoveling plate of the chain grate cannot be reset in the prior art. The device comprises a positioning groove, a shoveling plate return striking rod and a guide rod sleeve, the positioning groove is composed of a front positioning groove body and a rear positioning groove body, the front positioning groove body is fixedly connected to the material shoveling plate hanging rod, the rear positioning groove body is fixedly connected with the front positioning groove body, the guide rod sleeve is fixedly connected to the chain grate machine body, and the knock-out end of the material shoveling plate return machine rod is inserted into the chain grate machine body through the guide rod sleeve. And the horizontal center line of the knock-out end of the shoveling plate return machine rod and the horizontal center line of the positioning groove are on the same horizontal line. The device is simple, low in cost and convenient to operate, solves the production problem that the spading plate of the chain grate does not return, and ensures the long-term stable operation of a pellet production line.

Description

Technical Field

[0001] This utility model belongs to the technical field of iron ore pelletizing equipment, and specifically relates to a device for preventing the shovel plate of a chain grate machine from jamming. Background Technology

[0002] The chain grate's shovel plate is located between the head of the chain grate and the tail of the rotary kiln, with a normal gap of 2-3 mm between it and the grate. The chain grate shovel plate assembly includes the shovel plate and its support, a chain assembly, a counterweight assembly, and a tensioning device. Its function is to smoothly feed the raw material on the grate plate into the rotary kiln. During normal production, operating one chain grate bucket elevator can meet the return material volume (i.e., leakage volume) at the head of the chain grate.

[0003] However, in actual production, due to the high temperature area, the clamping blocks on both sides of the grate plate of the chain grate machine, which operates at high temperatures for a long time, may sometimes burn out and fall off, causing the grate plate to loosen and tilt into an upright position. When the impact force of the upright grate plate is too large, the tilt angle of the grate plate is too large, and the weighted tensioning device of the scraper plate cannot reset the scraper plate. This causes the scraper plate to lift up and not return to its original position, resulting in a gap of more than 10 mm between the scraper plate and the chain grate machine. In severe cases, it can be even larger, causing excessive return material at the head of the chain grate machine. In severe cases, even if both chain grate machine bucket elevators are running, they cannot meet the production needs, leading to the shutdown of the pellet production line and significant production losses. Utility Model Content

[0004] The purpose of this invention is to address the problem of the chain grate machine's scraper plate failing to return to its original position in existing technology, and to provide a device to prevent the chain grate machine's scraper plate from jamming. This invention's device is simple, low-cost, and easy to operate, solving the production problem of the chain grate machine's scraper plate not returning to its original position, and ensuring the long-term stable operation of the pellet production line.

[0005] A device for preventing the scraper plate of a chain grate machine from jamming includes a positioning groove, a scraper plate return rod, and a guide rod sleeve;

[0006] The positioning groove consists of a front positioning groove and a rear positioning groove. The front positioning groove is fixedly connected to the shovel plate hanger rod, and the rear positioning groove is fixedly connected to the front positioning groove. The guide rod sleeve is fixedly connected to the chain grate machine body. The striking end of the shovel plate return striking rod is inserted into the chain grate machine body through the guide rod sleeve. Furthermore, the horizontal centerline of the striking end of the shovel plate return striking rod is at the same horizontal level as the horizontal centerline of the positioning groove.

[0007] Furthermore, in the aforementioned device for preventing the shovel plate of the chain grate machine from jamming, the positioning groove is provided with a groove corresponding to the striking end of the shovel plate return rod.

[0008] Compared with the prior art, the advantages of this utility model are:

[0009] The device of this invention is simple, low in cost, and easy to operate. It solves the production problem of the chain grate machine's scraper plate not returning to its original position, and ensures the long-term stable operation of the pellet production line. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of the device of this utility model.

[0011] 1. Chain grate machine grate bed; 2. Chain grate machine scraper plate; 3. Guide rod sleeve; 4. Chain grate machine body; 5. Scraper plate lifting rod; 6. Scraper plate return striking rod; 7. Positioning rear groove; 8. Positioning front groove; 9. Hammer; 21. Support base. Detailed Implementation

[0012] A device for preventing the scraper plate of a chain grate machine from jamming includes a positioning groove, a scraper plate return rod 6, and a guide rod sleeve 3;

[0013] The positioning groove consists of a front positioning groove 8 and a rear positioning groove 7. The front positioning groove is fixedly connected to the shovel plate hanger 5, and the rear positioning groove is fixedly connected to the front positioning groove. The rear positioning groove is provided with a groove corresponding to the striking end of the shovel plate return rod. The guide rod sleeve is fixedly connected to the chain grate machine body 4. The striking end of the shovel plate return rod is inserted into the chain grate machine body through the guide rod sleeve. Furthermore, the horizontal centerline of the striking end of the shovel plate return rod is at the same horizontal level as the horizontal centerline of the positioning groove.

[0014] When the shovel plate of the chain grate fails to return to its original position, use hammer 9 to strike the impact end of the shovel plate return rod. Then, the striking end of the shovel plate return rod strikes the positioning groove. The vibration of the hammer is transmitted through the shovel plate hanger to the support seat 21 on which the chain grate shovel plate 2 is installed, so that the chain grate shovel plate returns to its original position.

Claims

1. A device for preventing jamming of the shovel plate of a chain grate machine, characterized in that, Includes positioning groove, material scraper return lever, and guide rod sleeve; The positioning groove consists of a front positioning groove and a rear positioning groove. The front positioning groove is fixedly connected to the shovel plate hanger rod, and the rear positioning groove is fixedly connected to the front positioning groove. The guide rod sleeve is fixedly connected to the chain grate machine body. The striking end of the shovel plate return striking rod is inserted into the chain grate machine body through the guide rod sleeve. Furthermore, the horizontal centerline of the striking end of the shovel plate return striking rod is at the same horizontal level as the horizontal centerline of the positioning groove.

2. The device for preventing jamming of the shovel plate of a chain grate machine according to claim 1, characterized in that, The positioning groove is provided with a groove corresponding to the striking end of the return rod of the shovel plate.

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