Scraper machine

Abstract

The utility model provides a scraper machine. The scraper machine comprises a bearing plate, a friction plate and a plurality of scraper plates. The scraping plate comprises a connecting part, a first scraping part and a second scraping part; the first scraping part and the second scraping part are respectively connected with the connecting part, and the first scraping part and the second scraping part extend towards the two opposite sides of the connecting part; the first scraping part and the second scraping part are each of a straight plate structure, and the extending direction of the first scraping part and the extending direction of the second scraping part are perpendicular to the moving direction of the scraping plate. According to the scraper machine provided by the embodiment of the invention, the harrow nail structure is arranged at the bottom of the scraping part of the scraper plate, so that alkali ash between the scraper plate and the bottom plate can be taken away, it is guaranteed that no ash is accumulated in the groove body of the scraper machine, and then the working effect and reliability of the scraper machine are improved.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal, and in particular to a scraper machine. Background Art

[0002] The burning of pulping black liquor in the alkali recovery furnace will produce a large amount of high-temperature flue gas containing alkali ash. The flue gas containing alkali ash is removed by the electrostatic precipitator and falls into the ash hopper. A scraper is installed under the ash hopper. The scraper operates back and forth to scrape away the fallen alkali ash, ensuring that the particulate matter in the alkali furnace flue gas meets the national environmental protection requirements.

[0003] Since alkali ash is sticky, it is easy to stick to the bottom of the scraper, causing more and more ash to accumulate at the bottom. The scraper in the conventional technical solution is prone to failures such as scraper floating chain and deviation, which affects the transportation of alkali ash and affects environmental protection. Utility Model Content

[0004] The embodiment of the present application provides a scraper machine, which includes a bearing plate, a friction plate and a plurality of scrapers;

[0005] The scraper comprises: a connecting portion, a first scraping portion and a second scraping portion; the first scraping portion and the second scraping portion are respectively connected to the connecting portion, and the first scraping portion and the second scraping portion are extended toward opposite sides of the connecting portion; the first scraping portion and the second scraping portion are both straight plate structures, and the extending directions of the first scraping portion and the second scraping portion are perpendicular to the moving direction of the scraper;

[0006] The friction plate is fixed on the carrying plate, and the plurality of scrapers are connected in sequence and can slide along the surface of the friction plate on one side away from the carrying plate under the drive of the transmission mechanism, and a gap is provided between the first scraper and the second scraper and the carrying plate;

[0007] A first rake nail is provided on a side of the first scraping portion used for scraping, and the first rake nail is used for scraping away the material located in the gap.

[0008] In some embodiments, the friction plate is made of wear-resistant steel.

[0009] In some embodiments, the rake spikes on adjacent scrapers are staggered in the moving direction of the scrapers.

[0010] In some embodiments, a second rake spike is disposed on a side of the second scraping portion for scraping, and the second rake spike is used to scrape away materials not scraped by the second scraping portion.

[0011] In some embodiments, there are multiple first rake nails, and the multiple first rake nails are arranged in sequence along the extension direction of the first scraping portion.

[0012] In some embodiments, there are multiple second rake nails, and the multiple second rake nails are arranged in sequence along the extension direction of the second scraping portion.

[0013] In some embodiments, the connecting portion includes a connecting groove and a connecting arm, the connecting arm is arranged opposite to the connecting groove, and the extension direction of the connecting arm is parallel to the moving direction of the scraper, and the connecting arm is used to be inserted into the connecting groove of an adjacent scraper, thereby realizing the connection and cooperation between adjacent scrapers.

[0014] The scraper machine provided in the embodiment of the present application can remove the alkaline ash between the scraper and the bottom plate by arranging a rake nail structure at the bottom of the scraping part of the scraper, thereby ensuring that no dust accumulates in the scraper machine tank, thereby improving the working effect and reliability of the scraper machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a scraper of the present application;

[0017] Figure 2 It is a structural schematic diagram of another embodiment of the scraper of the present application;

[0018] Figure 3 It is a structural schematic diagram of another embodiment of the scraper of the present application;

[0019] Figure 4 It is a structural schematic diagram of another embodiment of the scraper of the present application;

[0020] Figure 5 It is a structural schematic diagram of another embodiment of the scraper of the present application;

[0021] Figure 6 It is a schematic diagram of the partial structure of an embodiment of a scraper machine of the present application. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0023] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of the scraper of the present application. It should be noted that the scraper in the present application is used in a scraper machine. The scraper machine is buried in the ash hopper. The scraper of the scraper machine reciprocates to scrape away the fallen alkali ash to ensure that the flue gas particles of the alkali furnace meet the national environmental protection requirements. Among them, the scraper 100 includes: a connecting portion 130, a first scraper 110 and a second scraper 120; the first scraper 110 and the second scraper 120 are respectively connected to the connecting portion 130, and the first scraper 110 and the second scraper 120 are extended toward the opposite sides of the connecting portion 130. Optionally, the first scraper 110 and the second scraper 120 in this embodiment are both straight plate structures, and the extension direction of the first scraper 110 and the second scraper 120 is perpendicular to the moving direction of the scraper 100. In some other embodiments, the first scraper 110 and the second scraper 120 can also be arc-shaped plate structures, which are not specifically limited here.

[0026] A first rake spike 111 is disposed on a side (bottom in the figure) of the first scraping portion 110 for scraping. The first rake spike 111 is used to scrape away materials that are not scraped by the first scraping portion 110 .

[0027] Specifically, the connecting portion 130 , the first scraping portion 110 and the second scraping portion 120 may be an integral structure, and the first rake nail 111 may be welded and fixed to the first scraping portion 110 , or may be an integrally formed structure with the first scraping portion 110 , which is not specifically limited here.

[0028] See also Figure 2 , Figure 2 It is a structural schematic diagram of another embodiment of the scraper of the present application. Different from the aforementioned embodiment, in this embodiment, a second scraping portion 120 is provided with a second rake nail 121 on the side (i.e., the bottom in the figure) used for scraping, and the second rake nail 121 is used to scrape away the material not scraped by the second scraping portion 120.

[0029] Please also refer to Figures 3 to 5 , Figure 3 It is a structural schematic diagram of another embodiment of the scraper of the present application. Figure 4 It is a structural schematic diagram of another embodiment of the scraper of the present application. Figure 5 It is a structural schematic diagram of another embodiment of the scraper of the present application. In this embodiment, the number of the first rake nails 111 and the second rake nails 121 can be one or more. The multiple first rake nails 111 are arranged in sequence along the extension direction of the first scraping portion 110, and the multiple second rake nails 121 are arranged in sequence along the extension direction of the second scraping portion 120.

[0030] Please continue reading Figure 1 The connecting portion 130 in this embodiment includes a connecting groove 131 and a connecting arm 132. The connecting arm 132 is arranged opposite to the connecting groove 131, and the extending direction of the connecting arm 132 is parallel to the moving direction of the scraper 100. The connecting arm 132 is used to be inserted into the connecting groove of the adjacent scraper, thereby realizing the connection and cooperation between the adjacent scrapers.

[0031] See also Figure 6 , Figure 6 1 is a partial structural diagram of an embodiment of a scraper machine of the present application. The scraper machine 10 in this embodiment includes a bearing plate 200, a friction plate 300 and a plurality of scrapers 100. The detailed structure of the scraper 100 can be found in the related description of the above embodiment, which will not be repeated here.

[0032] The friction plate 300 is fixed on the carrier plate 200, and the plurality of scrapers 100 are connected in sequence and can slide along the surface of the friction plate 300 away from the carrier plate 200 under the drive of a transmission mechanism (not shown in the figure, specifically a drive motor, etc.). Optionally, the friction plate 300 can be made of wear-resistant steel (such as high manganese steel, etc.). A gap 102 is provided between the scraping portion of the scraper 100 and the carrier plate 200, and the rake nails (the first rake nail 111 and the second rake nail 121) extend toward the carrier plate 200 and abut against the carrier plate 200, and are used to scrape away the material (specifically, alkali ash, etc.) located in the gap 102.

[0033] Optionally, in this embodiment, the rake nails on adjacent scrapers 100 are staggered in the moving direction (arrow X direction in the figure) of the scraper 100. This design structure can save the number of rake nails and achieve the effect that the alkali ash at different positions can be scraped by the rake nails.

[0034] The scraper in the embodiment of the present application can remove the alkali ash between the scraper and the bearing plate by setting a rake nail structure at the bottom of the scraper, ensuring that there is no ash accumulation in the scraper tank, thereby improving the working effect and reliability of the scraper. It avoids abnormal conditions such as scraper deformation, floating chain, and deviation due to ash accumulation, ensures the normal operation of the equipment, and ensures the stable emission of alkali furnace flue gas particles, which meets national environmental protection requirements.

[0035] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A scraper, characterized in that: The scraper comprises a bearing plate, a friction plate and a plurality of scrapers; The scraper comprises: a connecting portion, a first scraping portion and a second scraping portion; the first scraping portion and the second scraping portion are respectively connected to the connecting portion, and the first scraping portion and the second scraping portion are extended toward opposite sides of the connecting portion; the first scraping portion and the second scraping portion are both straight plate structures, and the extending directions of the first scraping portion and the second scraping portion are perpendicular to the moving direction of the scraper; The friction plate is fixed on the carrying plate, and the plurality of scrapers are connected in sequence and can slide along the surface of the friction plate on one side away from the carrying plate under the drive of the transmission mechanism, and a gap is provided between the first scraper and the second scraper and the carrying plate; A first rake nail is provided on a side of the first scraping portion used for scraping, and the first rake nail is used for scraping away the material located in the gap.

2. The scraper according to claim 1, characterized in that: The friction plate is made of wear-resistant steel.

3. The scraper according to claim 2, characterized in that: The rake spikes on adjacent scrapers are arranged alternately in the moving direction of the scrapers.

4. The scraper according to claim 1, characterized in that: A second rake nail is arranged on a side of the second scraping portion for scraping, and the second rake nail is used to scrape away the material not scraped by the second scraping portion.

5. The scraper according to claim 1, characterized in that: There are a plurality of the first rake nails, and the plurality of the first rake nails are sequentially arranged along an extending direction of the first scraping portion.

6. The scraper according to claim 4, characterized in that: There are a plurality of the second rake nails, and the plurality of the second rake nails are sequentially arranged along an extending direction of the second scraping portion.

7. The scraper according to claim 1, characterized in that: The connecting portion includes a connecting groove and a connecting arm, the connecting arm is arranged opposite to the connecting groove, and the extending direction of the connecting arm is parallel to the moving direction of the scraper, and the connecting arm is used to be inserted into the connecting groove of an adjacent scraper, thereby realizing the connection and cooperation between the adjacent scrapers.

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