Ash discharging device of chain grate

Abstract

The utility model relates to the technical field of pellet production equipment, in particular to an ash discharging device of a chain grate machine, which comprises parallel branch pipes, the outer walls of the parallel branch pipes are fixedly connected with vertically downward ash discharging pipes, the tail ends of the ash discharging pipes are provided with double-layer ash discharging valves, the double-layer ash discharging valves comprise upper valve bodies and lower valve bodies, and the upper valve bodies and the lower valve bodies are arranged in parallel. And an ash storage bin is connected between the upper valve body and the lower valve body. The dust discharging pipes are arranged at the positions, where dust is easily accumulated, of the parallel branch pipes, and dust in the parallel branch pipes can be directly discharged from the dust discharging pipes, so that the purpose of quickly discharging dust is achieved under the condition of not stopping, the risk of pipeline blockage is reduced, the working efficiency is improved, the upper valve body and the lower valve body are mutually matched for working, and when the upper valve body is opened, the dust can be quickly discharged from the dust discharging pipes. When dust is discharged, the lower valve body is closed, dust enters the dust storage bin through the upper valve body, then the upper valve body is closed, the lower valve body starts, the dust in the dust storage bin is discharged through the lower valve body, the two valve bodies are always in an opening and closing state, and it is guaranteed that no air leakage phenomenon occurs during dust discharging.

Description

TECHNICAL FIELD

[0001] The utility model relates to pellet production equipment technical field, especially chain grate unloading ash device. BACKGROUND

[0002] At present, the hot air produced in the pellet production process is mixed with a large amount of powder particles, and the powder particles flow along the airflow in the pipeline, slowly accumulating at the bottom of the pipeline. The smaller the cross section of the pipeline, the more difficult the airflow flows, which affects the passage of the airflow and directly causes the decline of the quality of the pellet product and the increase of the cost. Especially on the parallel pipeline on both sides of the chain grate, since this is the first position where the hot air penetrates the material layer, the pipeline is horizontally oriented, so it is the most serious position for the production of powder and ash accumulation. The smaller the cross section of the pipeline, the smaller the airflow flow and the heat energy utilization, and the longer the dust accumulation time, which increases the load of the hot air pipeline itself. SUMMARY

[0003] The utility model discloses a chain grate unloading ash device, which can solve the above technical problems.

[0004] The utility model provides a chain grate unloading ash device, including parallel branch, the outer wall of parallel branch is fixedly connected with vertical downward unloading ash pipe, the end of unloading ash pipe is equipped with double -layer unloading ash valve, double -layer unloading ash valve includes upper valve body and lower valve body, is connected with ash storage bin between upper valve body and lower valve body.

[0005] Further, the unloading ash pipe is spaced apart along the axial direction of the parallel branch.

[0006] Further, it further includes ash removal guide groove, and the ash removal guide groove is arranged at the bottom of the parallel branch, and the unloading ash pipe is connected with the ash removal guide groove.

[0007] Further, the ash removal guide groove is in the shape of a tapered cylinder.

[0008] Further, the angle between the side wall of the ash removal guide groove and the central axis thereof is 30°-40°.

[0009] Further, the groove body of the ash removal guide groove is a three-layer structure, including an inner layer made of stainless steel, an outer layer made of carbon steel coated with anti-rust paint, and rock wool filled between the inner layer and the outer layer.

[0010] Further, a manual plug valve is arranged on the unloading ash pipe above the double-layer unloading ash valve.

[0011] Further, a return belt is arranged below the double-layer unloading ash valve.

[0012] Further, a support is arranged on the double-layer unloading ash valve for supporting the entire structure thereof.

[0013] Further, the bottom of the support is provided with a fixing plate, and the fixing plate is provided with a fixing hole.

[0014] Beneficial effects:

[0015] The utility model discloses a dust discharging pipe is arranged in the position of parallel branch pipe easy to gather dust, and the dust in parallel branch pipe can be directly discharged in the dust discharging pipe, thereby realizing the purpose of quick dust discharging under the condition of not stopping, reducing the risk of pipeline blockage, improving work efficiency, and when the double-layer dust discharging valve works, the upper valve body and the lower valve body work in cooperation, the upper valve body is opened, the lower valve body is closed, the dust enters the dust storage bin through the upper valve body, then the upper valve body is closed, the lower valve body starts, and the dust in the dust storage bin is discharged through the lower valve body, the two valve bodies are always in the state of one opening and one closing, guaranteeing that no air leakage occurs when discharging dust. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Mark explanation: 1-parallel branch pipe, 2-dust discharging pipe, 301-upper valve body, 302-lower valve body, 4-dust storage bin, 5-dust discharging guide slot, 6-hand-operated plug valve, 7-return material belt, 8-support, 9-fixing plate, 10-fixing bolt. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described clearly and completely in combination with embodiments, and obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] In the description of the utility model, it is understood that the directions or positional relations indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the directions or positional relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in that the indicated devices or elements must have a particular orientation, construction and operation. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features.

[0021] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Embodiment 1

[0023] A chain grate unloading device, as shown in Figure 1 The parallel branch pipe 1 is provided with a dust discharging guide groove 5 at the bottom, and the bottom of the dust discharging guide groove 5 is fixedly connected with a vertically downward dust discharging pipe 2, a plurality of dust discharging guide grooves 5 and dust discharging pipes 2 are arranged along the axial direction of the parallel branch pipe 1, and are installed at the position where dust is easily accumulated on the parallel branch pipe 1, and the end of the dust discharging pipe 2 is provided with a double-layer dust discharging valve, and the double-layer dust discharging valve comprises an upper valve body 301 and a lower valve body 302, and the upper valve body 301 and the lower valve body 302 are connected with a dust storage bin 4.

[0024] The upper valve body is located above, used for receiving the material to be unloaded, usually having a certain cavity space, so as to temporarily store the material after entering, and the structure design of the upper valve body should ensure that the material can smoothly enter the dust storage bin, and the connection with other parts is close, so as to prevent material leakage. The lower valve body is located below, mainly responsible for discharging the material received from the dust storage bin, and the structure of the lower valve body should match the dust storage bin to ensure smooth transmission of the material between the two valve bodies.

[0025] The upper valve plate is installed inside the upper valve body and is used to control the opening and closing of the upper valve body. When the upper valve plate is closed, the material is prevented from continuing to flow downward from the upper valve body, and when the upper valve plate is opened, the material can enter the ash storage bin from the upper valve body. The lower valve plate is installed inside the lower valve body and is used to control the opening and closing of the lower valve body, thereby determining whether the material is discharged from the lower valve body. The opening and closing actions of the upper valve plate and the lower valve plate are coordinated with each other to realize the intermittent discharging function of the double-layer ash discharging valve.

[0026] The sealing rings are arranged at the connection positions of the upper valve body and the lower valve body with other components, such as the contact positions of the valve body and the valve plate. The sealing rings are used to ensure the sealing performance of the double-layer ash discharging valve in the closed state and prevent the material from leaking and the external air from entering. The material of the sealing ring usually has good elasticity and wear resistance, such as rubber.

[0027] The power device provides power for the opening and closing actions of the valve plate. Common power devices include motors, hydraulic cylinders or air cylinders. The double-layer ash discharging valve driven by the motor usually has high automation degree and stable operation performance, and the double-layer ash discharging valve driven by the hydraulic cylinder or the air cylinder has large driving force and is suitable for some occasions with high opening and closing force requirements.

[0028] In addition, the ash discharging guide groove 5 is in the shape of a tapered cylinder, the included angle between the side wall of the ash discharging guide groove 5 and the central axis thereof is 30°, the groove body of the ash discharging guide groove 5 has a three-layer structure, which is an inner layer made of stainless steel, an outer layer made of carbon steel coated with anti-rust paint, and rock wool filled between the inner layer and the outer layer.

[0029] A return material belt 7 is arranged below the double-layer ash discharging valve, and a manual plug valve 6 is further arranged on the ash discharging pipe 2 above the double-layer ash discharging valve. The manual plug valve 6 can control the flow of the material in the pipeline. In addition, when the double-layer ash discharging valve needs to be regularly maintained and repaired, the manual plug valve 6 can isolate the double-layer ash discharging valve that needs to be repaired from the entire system without affecting the operation of the entire system, so that the maintenance personnel can safely and conveniently work.

[0030] A support 8 for supporting the entire structure of the double-layer ash discharging valve is arranged above the double-layer ash discharging valve. The bottom of the support 8 is provided with a fixing plate 9, and the fixing plate 9 is provided with fixing holes. Fixing bolts 10 pass through the fixing holes and are fixedly connected with the ground.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part or all of the technical features. These modifications or replacements do not change the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A chain grate unloading device, characterized in that... The system includes parallel branch pipes, with vertically downward ash discharge pipes fixedly connected to the outer wall of the parallel branch pipes. A double-layer ash discharge valve is provided at the end of the ash discharge pipe, comprising an upper valve body and a lower valve body, with an ash storage bin connected between the upper and lower valve bodies. Multiple ash discharge pipes are spaced apart along the axial direction of the parallel branch pipes. The system also includes an ash discharge guide channel located at the bottom of the parallel branch pipes, connected to the ash discharge pipes. The ash discharge guide channel is conical in shape, with its sidewall forming an angle of 30°-40° with its central axis. The channel body has a three-layer structure: an inner layer made of stainless steel, an outer layer made of carbon steel coated with anti-rust paint, and rock wool filling the inner and outer layers.

2. The chain grate unloading device according to claim 1, characterized in that, A manual slide gate valve is installed on the ash discharge pipe above the double-layer ash discharge valve.

3. The chain grate unloading device according to claim 1, characterized in that, A return conveyor belt is located below the double-layer ash discharge valve.

4. The ash unloading device for the chain grate machine according to claim 1, characterized in that, The double-layer ash discharge valve is equipped with a support bracket to support its entire structure.

5. The ash unloading device for the chain grate machine according to claim 4, characterized in that, The bottom of the bracket is provided with a fixing plate, and the fixing plate is provided with fixing holes. Fixing bolts pass through the fixing holes and are fixedly connected to the ground.

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