Anti-blocking device for feeding device of incineration rotary kiln

Abstract

The utility model provides incineration rotary kiln feeder prevents blocking device, including solid feed bin, its characterized in be set in the bottom of solid feed bin and be set in the middle part of the discharge gate, the movable joint of discharge gate, the one end of lower gate is connected hydraulic cylinder A, the lower part of discharge gate is connected piston feed slide, one side of piston feed slide is set and advances mechanism, the other side of piston feed slide is set hearth gate, one end of hearth gate is connected hydraulic cylinder B, through setting as L type with piston feed slide, the inside of piston feed channel one side is set and advances the trolley, and drives through the propeller, and the propeller can select hydraulic cylinder, and the trolley can realize to the effect of propelling the material falling to the hearth, accelerates the material to enter the hearth incineration, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln equipment technology, and in particular to a device for preventing material blockage in the feeder of an incineration rotary kiln. Background Technology

[0002] A rotary kiln is a kiln that rotates to calcine (commonly known as a rotary kiln). Its shape resembles a rotating bed, hence it's also called a rotary bed kiln. It belongs to the building materials equipment category. Rotary kilns can be classified according to the materials they process: cement kilns, metallurgical and chemical kilns, and lime kilns. Cement kilns are mainly used for calcining cement clinker and are divided into two main categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for the magnetization roasting of lean iron ore in steel plants and the oxidative roasting of chromium and nickel iron ore.

[0003] Rotary kiln calcination is a high-temperature treatment technology widely used in industrial production, primarily for the calcination and pyrolysis of materials. Its process flow includes: 1. Material feeding and preheating: The material is continuously fed into the tail of the rotary kiln and moves towards the kiln head as the kiln slowly rotates. During this process, the material first enters the preheating zone for preliminary preheating, preparing for subsequent high-temperature calcination; 2. High-temperature calcination: The preheated material enters the high-temperature zone, typically calcined at around 1250℃; 3. Cooling and discharge: After calcination, the material falls from the kiln head discharge pipe into the cooling kiln for cooling. The cooled calcined material is discharged through conveying equipment for the next process or storage.

[0004] Currently, the amount of material fed into rotary kilns is difficult to control during the feeding process, often resulting in excessive feeding. This leads to material accumulation below the feed inlet, causing jamming, affecting combustion efficiency, and ultimately reducing work efficiency. Utility Model Content

[0005] In view of the above technical problems, this utility model provides a device for preventing material blockage in the feeder of an incineration rotary kiln to improve working efficiency.

[0006] This utility model provides a device for preventing material blockage in a rotary kiln feeder, including a solid feed hopper. The solid feed hopper has a discharge port at its bottom, a lower gate plate is movably connected to the middle of the discharge port, one end of the lower gate plate is connected to a hydraulic cylinder A, a piston feed slide is connected to the lower part of the discharge port, a propulsion mechanism is provided on one side of the piston feed slide, and a furnace gate plate is provided on the other side of the piston feed slide. One end of the furnace gate plate is connected to a hydraulic cylinder B.

[0007] The solid feed hopper is conical, and the piston feed chute is L-shaped.

[0008] The propulsion mechanism includes a propeller and a pusher trolley. The pusher trolley is located inside the piston feed slide. The propeller is connected to one side of the pusher trolley. The pusher trolley can move inside the piston feed slide under the drive of the propeller.

[0009] The beneficial effects of this utility model are as follows: This utility model is a device for preventing material blockage in a rotary kiln feeder. By setting the piston feed slide to an L-shape, a pusher trolley is installed inside one side of the piston feed channel and driven by a propeller, which can be a hydraulic cylinder. The pusher trolley can push the falling material into the furnace, accelerating the material's entry into the furnace for combustion and improving work efficiency. The time it takes for the pusher trolley to advance determines whether the material is stuck. If a blockage occurs, feeding is stopped and the lower gate is closed to prevent the blockage from worsening due to excessive pushing. At the same time, feedback is added when the pusher trolley is in the middle position in the slide. When the pusher trolley returns to the middle position, the furnace gate is closed, which can improve work efficiency and reduce the risk of flames in the furnace being carried into the slide and igniting the residual material in the slide. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a diagram showing the various positions of the thruster of this utility model.

[0012] Attached reference numerals: 1-Solid feed hopper; 11-Discharge port; 2-Lower gate; 3-Hydraulic cylinder A; 4-Piston feed chute; 5-Pushing trolley; 6-Propeller; 7-Furnace gate; 8-Hydraulic cylinder B. Detailed Implementation

[0013] Example 1

[0014] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0015] As shown in the figure, this utility model provides a device for preventing material blockage in a rotary kiln feeder, including a solid feed hopper 1. The solid feed hopper 1 is characterized by a discharge port 11 at the bottom, a lower gate 2 movably connected to the middle of the discharge port 11, a hydraulic cylinder A3 connected to one end of the lower gate 2, a piston feed slide 4 connected to the lower part of the discharge port 11, a propulsion mechanism provided on one side of the piston feed slide 4, a furnace gate 7 provided on the other side of the piston feed slide 4, and a hydraulic cylinder B8 connected to one end of the furnace gate 7.

[0016] The solid feed hopper 1 is conical, and the piston feed chute 4 is L-shaped.

[0017] The propulsion mechanism includes a propeller 6 and a pusher trolley 5. The pusher trolley 5 is located inside the piston feed slide 4. The pusher 6 is connected to one side of the pusher trolley 5. The pusher trolley 5 can move within the piston feed slide 4 under the drive of the propeller 6.

[0018] Example 2

[0019] In use, this utility model involves adding material into the solid feed hopper 1, activating hydraulic cylinder A3 to open the lower gate 2, and allowing the material to fall from the discharge port 11 along the piston feed channel 4. At this time, the pusher 6 is activated, which drives the pusher trolley 5 to reciprocate, thus pushing the falling material into the furnace (i.e., the pusher moves from the initial position A to the final position B). Simultaneously, hydraulic cylinder B8 is activated, causing the furnace gate 7 to open, allowing the material to smoothly enter the furnace for combustion.

[0020] The propulsion time of the pusher 6 is used to determine whether a jam has occurred. For example, if the propulsion time from the initial position A to the middle position C of the pusher exceeds 10 seconds when the pusher 6 is moving forward, it is considered that a jam has occurred. At this time, the feeding stops and the hydraulic cylinder A3 drives the lower gate 2 to close, so as to prevent the jam from being aggravated due to excessive propulsion.

[0021] When a jam occurs, the pusher 6 can be controlled to drive the pusher trolley 5 to the middle position C of the pusher 6. This process is repeated multiple times until all the material is pushed into the furnace before proceeding with the subsequent feeding operation.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing material blockage in a rotary kiln feeder, comprising a solid feed hopper, characterized in that... The bottom of the solid feed hopper is provided with a discharge port, and a lower gate is movably connected to the middle of the discharge port. One end of the lower gate is connected to a hydraulic cylinder A. The lower part of the discharge port is connected to a piston feed slide. A propulsion mechanism is provided on one side of the piston feed slide, and a furnace gate is provided on the other side of the piston feed slide. One end of the furnace gate is connected to a hydraulic cylinder B.

2. The anti-blocking device for the feeder of the incineration rotary kiln according to claim 1, characterized in that... The solid feed hopper is conical, and the piston feed chute is L-shaped.

3. The anti-blocking device for the feeder of the incineration rotary kiln according to claim 1, characterized in that... The propulsion mechanism includes a propeller and a pusher trolley. The pusher trolley is located inside the piston feed slide. The propeller is connected to one side of the pusher trolley. The pusher trolley can move inside the piston feed slide under the drive of the propeller.

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