Efficient coal tamping and pressing device and using method

Abstract

The invention relates to an efficient tamping coal pressing device which comprises a coal pressing hammer, a base, guiding devices, a power source and a shaft with a cam, the output end of the power source is connected with the shaft with the cam, the bottom of the power source is installed on the base, the two ends of the base are provided with the two guiding devices, and the two guiding devices are arranged on the base. The coal pressing hammer comprises a cross beam, a left rod, a right rod and a hammer body connected to the bottom end of the left rod and the bottom end of the right rod, the bottom of the cross beam is connected with the hammer body through the left rod and the right rod, the cam can make contact with the cross beam, and the left rod and the right rod penetrate through the corresponding guide devices respectively. Hydraulic drive is replaced by mechanical transmission, instability of hydraulic elements can be reduced, working efficiency can be improved, after a plurality of tamping hammers are changed into a single whole hammer structure, the density of a coal cake can be obviously improved to be more than 1t / m < 3 > after the coal cake is made, and the surface is smooth.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical coking, and in particular to a high-efficiency coal tamping device and a use method thereof. Background Art

[0002] The heat recovery coke oven adopts the tamping coke oven process. The loose coal in the coal chute needs to be made into coal cakes of a certain density in advance. The width of the coal chute is 3600mm and the length is about 16000mm. The coal is laid in multiple layers and tamped in layers. The prepared coal cakes are required to reach a height of 1150mm to 1200mm and a density of 1t / m 3 Left and right, the bigger the better.

[0003] Existing heat recovery coke oven tamping stations offer two types of tamping: a single-hammer hydraulic static pressure type and a multi-hammer mechanical clamping, upward-throwing gravity-driven type. Both types of coal compaction devices are installed on the tamping station's tamping trolley, which travels along the coal cake. The coal compaction mechanism compresses the coal in different ways.

[0004] The whole hammer hydraulic static pressure coal pressing device uses a hydraulic cylinder to drive a single coal pressing hammer to pressurize the loose coal. When the coal pressing device presses the coal, the tamping trolley must stop and lock the position before pressing the coal. After the coal cake is formed, the surface is flat, but the density of the coal cake is slightly smaller, and the coal cake making time is slightly longer. The hydraulic components often fail, affecting production and making maintenance difficult.

[0005] The multi-hammer mechanical clamping and throwing gravity-working coal compacting device is driven by an electric motor reducer. The coal compacting hammers are multiple small tamping hammers. The friction plates are attached to the sides of the tamping hammer rods. The multiple tamping hammers are thrown upward in sequence by cam clamping. The tamping hammers fall freely under gravity to tamp the loose coal below. The tamping trolley keeps moving, tamping while moving. After the coal cake is formed, the density can reach 1t / m 3 However, the surface of the coal cake is uneven and there is a small amount of loose coal, so the coal cake must be flattened by a flattening mechanism. There are many tamping hammers, and the friction clamping type is adopted. The life of the tamping hammer friction plate and the clamping wheel is short, and the later maintenance workload is large. Summary of the Invention

[0006] In view of the problems in the above-mentioned coal briquetting process such as low coal briquetting density, long production time, uneven surface, and high equipment failure rate, a high-efficiency coal tamping device and its use method are provided. By adopting mechanical transmission instead of hydraulic drive, the instability of hydraulic components can be reduced and the working efficiency can be improved. By replacing multiple tamping hammers with a single whole hammer structure, the coal briquetting density can be significantly increased to 1t / m after the coal briquetting is completed. 3 Above, and the surface is flat.

[0007] The technical means adopted in the present invention are as follows: A high-efficiency tamping coal pressing device includes a coal pressing hammer, a base, a guide device, a power source and a shaft with a cam, the output end of the power source is connected to the shaft with the cam, the bottom of the power source is installed on the base, and two guide devices are provided at both ends of the base. The coal pressing hammer includes a crossbeam, left and right rods and a hammer body connected to the bottom ends of the left and right rods, the bottom of the crossbeam is connected to the hammer body through the left and right rods, the cam can contact the crossbeam, and the left and right rods pass through the corresponding guide devices respectively.

[0008] Furthermore, the power source is a motor, which is connected to the shaft via a reducer.

[0009] Furthermore, the bottom of the hammer body is a plane, the specifications of the left and right upper parts of the hammer body match the specifications of the left and right rods, and there is a gradual structure with gradually increasing diameter between the left and right upper parts and the bottom of the hammer body.

[0010] Further, the base is mounted on a tamping trolley.

[0011] The present invention also discloses a method for using the above-mentioned high-efficiency tamping coal pressing device, which comprises the following steps: Using a motor reducer as the power, the shaft with a cam rotates, and the cam drives the entire coal hammer to rise to the highest point. The shaft with the cam continues to rotate, and the coal hammer loses support and falls freely due to gravity, tamping the loose coal under the coal hammer. The rotation of the shaft with the cam realizes one-time tamping of the loose coal by the coal hammer.

[0012] Furthermore, the camshaft rotates at a speed of at least 60 rpm.

[0013] The device disclosed in the present invention adopts a cam structure design, which is simple and practical. A motor reducer is used to drive the cam to rotate. After the coal hammer is lifted to the highest point, the coal hammer falls freely to tamp the coal powder. The cam rotates cyclically, causing the coal hammer to move up and down repeatedly, finally completing the compaction of the coal powder.

[0014] Compared with existing technologies, this invention offers the following advantages: it enables the tamping trolley to tamp coal cakes while it moves, reducing hydraulic component costs and equipment failure rates, while also meeting requirements for coal cake density and appearance. This technology can be used as a coal compacting device or a coal cake flattening mechanism in heat recovery coke oven tamping stations, and can also be applied to conventional tamping coke oven coal cake flattening mechanisms.

[0015] Specifically, the coal compacting device of the present invention adopts a single whole hammer structure to make the surface of the coal cake smooth after tamping, and the whole hammer structure can resist the weakness of the single small hammer structure and prevent the tamping hammer rod from bending due to force during travel.

[0016] The motor reducer drives the cam to rotate, which has a reliable structure and reduces maintenance workload.

[0017] The continuous rotation of the cam to lift the entire hammer structure can achieve continuous tamping work and improve work efficiency.

[0018] The cam structure can also be used to realize the free fall of the coal hammer to compact the coal cakes and increase the density of the coal cakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 Front view of the coal pressing device.

[0021] Figure 2 Side view of the coal pressing device.

[0022] Figure 3 View of various working positions of the coal pressing device.

[0023] In the figure: 1. Coal hammer, 2. Shaft with cam, 3. Guide device, 4. Base, 5. Power source. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0029] For ease of description, spatially relative terms such as "above," "above," "on the upper surface of," and "above" may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" another device or structure would then be positioned as "below" or "below" the other device or structure. Thus, the exemplary term "above" may include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0030] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0031] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention discloses a high-efficiency tamping coal pressing device, including a coal pressing hammer 1, a base 4, a guide device 3, a power source 5 and a shaft 2 with a cam, wherein the output end of the power source is connected to the shaft with the cam, the bottom of the power source is mounted on the base, and two guide devices are provided at both ends of the base. The coal pressing hammer includes a crossbeam, left and right rods and a hammer body connected to the bottom ends of the left and right rods, the bottom of the crossbeam is connected to the hammer body through the left and right rods, the cam can contact the crossbeam, and the left and right rods respectively pass through the corresponding guide devices.

[0032] In this embodiment, the guide mechanism may be in any form, including but not limited to a slide, a guide wheel, or a guide sleeve.

[0033] Furthermore, the power source is a motor, which is connected to the shaft via a speed reducer. In this embodiment, two support bearing seats are provided on the base, and bearings are provided inside the support bearing seats, and one end of the camshaft passes through the bearings in the two bearing seats.

[0034] Furthermore, the bottom of the hammer body is a plane, the specifications of the left and right upper parts of the hammer body match the specifications of the left and right rods, and there is a gradual structure with gradually increasing diameter between the left and right upper parts and the bottom of the hammer body.

[0035] Further, the base is mounted on a tamping trolley.

[0036] like Figure 3 As shown, the present invention also discloses a method for using the above-mentioned high-efficiency tamping coal pressing device, comprising the following steps: Using a motor reducer as the power, the shaft with a cam rotates, and the cam drives the entire coal hammer to rise to the highest point. The shaft with the cam continues to rotate, and the coal hammer loses support and falls freely due to gravity, tamping the loose coal under the coal hammer. The rotation of the shaft with the cam realizes one-time tamping of the loose coal by the coal hammer.

[0037] Specifically, the cam rotates at a constant speed at the bottom. The cam speed needs to be calculated according to the lifting stroke so that the cam can lift the lower surface of the upper crossbeam of the coal pressing hammer of the coal pressing device by the cam surface when it rotates. When it is lifted to the highest point, the cam continues to rotate. The coal pressing hammer has no support below and falls in a free fall motion until it reaches the coal powder position. Furthermore, in order to achieve rapid descent of the coal hammer, the rotation speed of the camshaft is at least 60 rpm.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient tamping coal pressing device, characterized in that: It includes a coal crusher hammer, a base, a guide device, a power source and a shaft with a cam. The output end of the power source is connected to the shaft with the cam. The bottom of the power source is installed on the base. Two guide devices are provided at both ends of the base. The coal crusher hammer includes a crossbeam, left and right rods and a hammer body connected to the bottom ends of the left and right rods. The bottom of the crossbeam is connected to the hammer body through the left and right rods. The cam can contact the crossbeam. The left and right rods pass through the corresponding guide devices respectively.

2. The device according to claim 1, characterized in that The power source is a motor, which is connected to the shaft via a reducer.

3. The device according to claim 1, characterized in that The bottom of the hammer body is a plane. The specifications of the left and right upper parts of the hammer body match the specifications of the left and right rods. There is a gradual structure with gradually increasing diameter between the upper part and the bottom of the hammer body.

4. The device according to claim 1, characterized in that The base is mounted on the tamping trolley.

5. The method for using the high-efficiency tamping coal compacting device according to any one of claims 1 to 4, characterized in that: The steps include: Using a motor reducer as the power, the shaft with a cam rotates, and the cam drives the entire coal hammer to rise to the highest point. The shaft with the cam continues to rotate, and the coal hammer loses support and falls freely due to gravity, tamping the loose coal under the coal hammer. The rotation of the shaft with the cam realizes one-time tamping of the loose coal by the coal hammer.

6. The method according to claim 5, characterized in that The camshaft rotation speed is at least 60 rpm.

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