Slag squeezing device of boiler slag removal system

Abstract

The invention discloses a slag extrusion device of a boiler slag removal system, and relates to the technical field of boiler slag removal equipment, the slag extrusion device comprises a slag discharge unit, the slag discharge unit comprises a steel belt slag discharge machine, a slag outlet formed in the steel belt slag discharge machine, and a slag hopper assembly arranged on the slag discharge machine; and the slag extruding unit comprises a slag extruding assembly arranged on the slag hopper assembly, a positioning assembly arranged on the slag extruding assembly and a fixing assembly arranged on the slag extruding assembly and connected with the positioning assembly. According to the slag extrusion device of the boiler slag removal system, the slag extrusion unit is arranged, the slag extrusion assembly on the slag extrusion unit is utilized, and the end, used for extruding coal slag, of the slag extrusion plate is arranged to be the sawtooth-cone-shaped extrusion head, so that the contact area between the slag extrusion device and slag charge is increased, the extrusion effect is improved, meanwhile, the sawtooth-cone-shaped structure can effectively crush and disperse large cakes in the slag charge, and the slag removal efficiency is improved. And therefore, the large slag blocks are easier to convey and treat, and the influence on the safe operation of the boiler due to excessive accumulation of the large slag blocks is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of boiler slag removal equipment, and in particular to a slag extruding device of a boiler slag removal system. Background Art

[0002] During the operation of the boiler in a thermal power plant, the slag removal system is a key link to ensure the normal operation of the boiler and environmentally friendly emissions. A slag extrusion device is usually installed in the slag removal system to extrude and crush the coal slag.

[0003] The conventional slag squeezing device usually sets two sets of telescopic cylinders and slag squeezing plates in the slag bucket below the furnace, and then drives the two sets of slag squeezing plates to approach and squeeze and crush the larger coal slag in the slag bucket through the telescopic cylinder. However, one end of the conventional squeezing plate for squeezing the coal slag is set in a tooth shape, and manual slag removal is generally required, with low slag removal efficiency and poor effect of crushing the coal slag. In addition, as the slag squeezing plate increases in service time, it will gradually lose its effect due to factors such as high temperature, high pressure and wear, or will have problems such as deformation and blockage, thereby affecting the normal operation and efficiency of the boiler. Therefore, it is necessary to regularly check and replace the slag squeezing plate to ensure that the boiler's slag removal system remains in good condition and prevent malfunctions and accidents. However, the conventional slag squeezing plate is usually directly welded and fixed on the telescopic cylinder. When repairing or replacing, the slag squeezing plate and the telescopic cylinder can only be replaced as a whole. The replacement cost is high and needs to be improved. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems that the slag extrusion device of the above-mentioned existing boiler slag removal system has low slag extrusion efficiency of the traditional toothed slag extrusion plate, and the traditional slag extrusion plate cannot be replaced individually when it is worn and deformed, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a slag extrusion device for a boiler slag removal system, which aims to solve the problems of low slag extrusion efficiency of traditional toothed slag extrusion plates and the inability to replace traditional slag extrusion plates individually when they are worn and deformed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a slag discharge unit, including a steel belt slag discharger, a slag outlet arranged on the steel belt slag discharger, and a slag bucket assembly arranged on the slag discharger;

[0008] The slag extrusion unit comprises a slag extrusion assembly arranged on the slag bucket assembly, a positioning assembly arranged on the slag extrusion assembly, and a fixing assembly arranged on the slag extrusion assembly and connected to the positioning assembly.

[0009] As a preferred solution of the slag squeezing device of the boiler slag removal system of the present invention, the slag bucket assembly includes a slag bucket body arranged on the steel belt slag discharger, and two slag squeezing boxes arranged on the slag bucket body.

[0010] As a preferred solution of the slag squeezing device of the boiler slag removal system of the present invention, the slag bucket assembly further includes a slag filter rack arranged on the slag squeezing box, and an observation port arranged on the slag squeezing box.

[0011] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, the slag extrusion box is provided with a slag inlet connected to the slag hopper body, and the slag inlet is located directly above the slag outlet.

[0012] As a preferred solution of the slag extrusion device of the boiler slag removal system described in the present invention, the slag extrusion assembly includes two fixed frames arranged on the slag extrusion box, a telescopic cylinder arranged on the fixed frame, a connecting plate arranged on the telescopic cylinder and located inside the slag extrusion box, and a slag extrusion plate arranged on the connecting plate.

[0013] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, the opposite sides of the two slag extrusion plates are both provided with regularly arranged serrated conical protrusions, and the serrated conical protrusions on the two slag extrusion plates are staggered with each other.

[0014] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, the positioning assembly includes a positioning groove arranged on the connecting plate, and a positioning block arranged on the slag extrusion plate and adapted to the positioning groove.

[0015] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, the fixing component includes a storage cavity arranged inside the connecting plate, a threaded rod arranged on the inner wall of the storage cavity, and a threaded wrench arranged on the threaded rod.

[0016] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, the fixing assembly also includes two threaded plates arranged on the threaded rod, two plug plates arranged on the threaded plates, and a socket arranged on the positioning block and adapted to the plug plates.

[0017] As a preferred solution of the slag extrusion device of the boiler slag removal system of the present invention, wherein: the threaded plate is provided with a limit block connected to the plug plate, and two sides of the outer surface of the threaded rod are provided with two opposite threads.

[0018] Beneficial effects of the present invention:

[0019] 1. By setting up a slag extrusion unit, using the slag extrusion assembly on the slag extrusion unit, and setting one end of the slag extrusion plate that extrudes the coal slag as a sawtooth cone-shaped extrusion head, the contact area with the slag is increased, and the extrusion effect is improved. At the same time, the sawtooth cone structure can also effectively break and disperse the large lumps in the slag, making it easier to transport and handle, and preventing the accumulation of large slag blocks from affecting the safe operation of the boiler;

[0020] 2. By setting up a slag extrusion unit and utilizing the positioning assembly and fixing assembly on the slag extrusion unit, the installation connection between the connecting plate and the extrusion plate can be realized. Then, when the extrusion plate is worn and deformed, the extrusion plate can be replaced or repaired individually, which not only reduces the cost of replacing and repairing the device, but also makes the installation and disassembly operations more convenient, easy to use, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic structural diagram of the slag outlet of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the slag bucket assembly of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the filter residue frame of the present invention.

[0026] Figure 5 It is a schematic structural diagram of the slag bucket assembly and the slag extrusion assembly of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the slag extrusion unit of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the connecting plate and the slag extrusion plate of the present invention.

[0029] Figure 8It is a schematic structural diagram of the slag extrusion assembly and the fixing assembly of the present invention.

[0030] Fig. 9 It is a schematic structural diagram of the fixing assembly of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example 1, reference Figures 1 to 8 , which is the first embodiment of the present invention, provides a slag extrusion device of a boiler slag removal system, which includes a slag discharge unit 100, including a steel belt slag discharger 101, a slag outlet 102 arranged on the steel belt slag discharger 101, and a slag bucket assembly 103 arranged on the slag discharger; a slag extrusion unit 200, including a slag extrusion assembly 201 arranged on the slag bucket assembly 103, a positioning assembly 202 arranged on the slag extrusion assembly 201, and a fixing assembly 203 arranged on the slag extrusion assembly 201 and connected to the positioning assembly 202.

[0036] There are two slag outlets 102 , and both are located at the top of the steel belt slag discharger 101 . The coal slag can enter the steel belt slag discharger 101 through the slag outlets 102 , and then be discharged to the next process through the steel belt slag discharger 101 .

[0037] When in use, the ash and slag in the boiler furnace are collected through the slag bucket assembly 103, and the slag is squeezed and crushed by the slag extrusion assembly 201. The slag after extrusion and crushing will enter the steel belt slag discharger 101 through the slag outlet 102, and then the coal ash will be discharged to the next process through the steel belt slag discharger 101; through the arrangement of the positioning assembly 202 and the fixing assembly 203, when the slag extrusion plate 201d is worn and deformed, the slag extrusion plate 201d can be disassembled and separated from the telescopic cylinder 201b, so that only the slag extrusion plate 201d needs to be replaced.

[0038] Example 2, reference Figures 1 to 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the slag bucket assembly 103 includes a slag bucket body 103a arranged on the steel belt slag discharger 101, and two slag squeezing boxes 103b arranged on the slag bucket body 103a; wherein, the two slag squeezing boxes 103b are arranged on both sides of the bottom of the slag bucket body 103a, and the slag in the boiler furnace will be concentrated into the two slag squeezing boxes 103b after entering the slag bucket body 103a, so as to carry out subsequent slag squeezing work.

[0039] Furthermore, the slag bucket assembly 103 also includes a slag filter rack 103c arranged on the slag extrusion box 103b, and an observation port 103d arranged on the slag extrusion box 103b; wherein, the slag filter rack 103c is arranged at the bottom of the slag extrusion box 103b. After the ash and slag in the boiler furnace enter the slag bucket body 103a, the ash and smaller slag will directly pass through the slag filter rack 103c and the slag outlet 102 into the steel belt slag discharger 101 for discharge, but individual larger slag cannot be discharged through the slag filter rack 103c, so it is necessary to extrude and crush it by the slag extrusion assembly 201 before it can be discharged; the observation port 103d is opened on one side of the slag extrusion box 103b. Through the setting of the observation port 103d, it is not only convenient for the staff to view the real-time status of the slag extrusion work, but also convenient for the staff to install, connect, disassemble and replace the slag extrusion plate 201d.

[0040] Furthermore, the slag squeezing box 103b is provided with a slag inlet 103e connected to the slag bucket body 103a, and the slag inlet 103e is located directly above the slag outlet 102;

[0041] Furthermore, the slag extrusion assembly 201 includes two fixed frames 201a arranged on the slag extrusion box 103b, a telescopic cylinder 201b arranged on the fixed frame 201a, a connecting plate 201c arranged on the telescopic cylinder 201b and located inside the slag extrusion box 103b, and a slag extrusion plate 201d arranged on the connecting plate 201c; wherein the fixed frame 201a and the slag extrusion box 103b are fixedly connected, the telescopic cylinder 201b is fixedly connected to the fixed frame 201a, and one end of the telescopic cylinder 201b passes through the slag extrusion box 103b and is fixedly connected to the connecting plate 201c; the connecting plate 201c and the slag extrusion plate 201d are connected via a positioning assembly 202 and a fixing assembly 203.

[0042] Furthermore, the opposite sides of the two slag extrusion plates 201d are both provided with regularly arranged serrated conical protrusions, and the serrated conical protrusions on the two slag extrusion plates 201d are staggered with each other; wherein, by setting one end of the slag extrusion plate 201d for extruding the coal slag as a serrated conical extrusion head, the contact area with the slag material is increased, and the extrusion effect is improved, and the serrated conical structure can effectively break and disperse the large lumps in the slag material, making it easier to be transported and processed, and preventing the accumulation of excessive large slag blocks from affecting the safe operation of the boiler, and the staggered serrations on the two slag extrusion plates 201d in the slag extrusion box 103b can achieve seamless docking, ensuring that the extrusion heads are completely closed, and playing the role of closing the slag discharge port at the bottom of the furnace; the serrated conical extrusion heads on the slag extrusion plates 201d are arranged in three layers horizontally, and the arrangement and number can be flexibly adjusted according to actual conditions, and the slag extrusion plates 201d and the connecting plates 201c are made of high temperature resistant and wear-resistant materials, thereby extending the wear time of the slag extrusion plates 201d and thus extending their service life.

[0043] When in use, when the ash and slag in the boiler furnace enter the two slag squeezing boxes 103b through the slag hopper body 103a, the ash and individual smaller slag will directly pass through the slag filter frame 103c and the slag outlet 102, enter the steel belt slag discharger 101 for discharge, while the individual larger slag cannot be discharged through the slag filter frame 103c, and the telescopic cylinder 201b drives the connecting plate 201c and the slag squeezing plate 201d to move, so that the two slag squeezing plates 201d are closed to squeeze and crush the slag that cannot pass through the slag filter frame 103c (the telescopic cylinder 201b can be set in advance in the slag removal system to automatically drive the slag squeezing plate 201d to perform the squeezing operation at a certain interval), and the slag after squeezing and crushing will continue to pass through the slag filter frame 103c and the slag outlet 102, enter the steel belt slag discharger 101 for discharge.

[0044] The remaining structures are the same as those of Example 1.

[0045] Example 3, reference Figures 1 to 8, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the positioning assembly 202 includes a positioning groove 202a arranged on the connecting plate 201c, and a positioning block 202b arranged on the slag extrusion plate 201d and adapted to the positioning groove 202a; wherein the positioning groove 202a is arranged on a side of the connecting plate 201c close to the slag extrusion plate 201d, and four positioning grooves 202a are arranged on each connecting plate 201c, and the four positioning grooves 202a are respectively located at the four corners of one side of the connecting plate 201c, the number of the positioning blocks 202b is consistent with the number of the positioning grooves 202a, the positioning blocks 202b and the positioning grooves 202a are slidably connected, and the positioning blocks 202b and the positioning grooves 202a are fixedly connected at the four corners of the connecting plate 201c and the slag extrusion plate 201d, so as to enhance the stability and firmness of the connection between the connecting plate 201c and the slag extrusion plate 201d.

[0046] Furthermore, the fixing assembly 203 includes a storage cavity 203c arranged inside the connecting plate 201c, a threaded rod 203d arranged on the inner wall of the storage cavity 203c, and a threaded handle 203e arranged on the threaded rod 203d; wherein, the storage cavity 203c is opened inside the connecting plate 201c, and the storage cavity 203c is located between the four positioning grooves 202a on the connecting plate 201c, one end of the threaded rod 203d is rotatably connected to the inner wall of the storage cavity 203c through a bearing, and the other end of the threaded rod 203d passes through the connecting plate 201c and is fixedly connected to the threaded handle 203e, and the position of the threaded handle 203e is located in the observation port 103d, thereby facilitating the staff to connect and disassemble the slag extrusion plate 201d.

[0047] Furthermore, the fixing assembly 203 also includes two threaded plates 203e-1 arranged on the threaded rod 203d, two plug plates 203e-2 arranged on the threaded plate 203e-1, and a socket 203e-3 arranged on the positioning block 202b and adapted to the plug plates 203e-2; wherein, the threaded plate 203e-1 and the threaded rod 203d are threadedly connected, and the size and shape of the threaded plate 203e-1 are consistent with the size and shape of the internal space of the storage cavity 203c, so that when the threaded rod 203d rotates, the threaded plate 203e-1 can only move horizontally, and cannot rotate with the threaded rod 203d.

[0048] Furthermore, a limit block 203e-4 connected to the plug plate 203e-2 is provided on the threaded plate 203e-1, and two opposite threads are provided on both sides of the outer surface of the threaded rod 203d; wherein, the threaded plate 203e-1, the limit block 203e-4 and the plug plate 203e-2 are fixedly connected, and when the limit block 203e-4 contacts the inner wall of the storage cavity 203c, it means that the plug plate 203e-2 has been fully installed in the socket 203e-3, so that the staff can know whether the installation is in place when performing the installation operation of the slag squeezing plate 201d; through the setting of opposite threads, when the threaded rod 203d rotates, the two connecting plates 201c and the plug plate 203e-2 can be synchronously driven to move in the opposite direction and connect with the sockets 203e-3 in the two positioning blocks 202b respectively.

[0049] When in use, when installing the slag extrusion plate 201d, extend the slag extrusion plate 201d into the slag extrusion box 103b through the observation port 103d, and insert the slag extrusion plate 201d on the connecting plate 201c by aligning the positions of the positioning groove 202a and the positioning block 202b, and then rotate the threaded handle 203e to drive the threaded rod 203d to rotate, so that the two connecting plates 201c move in the opposite direction until the limit block 203e-4 contacts the inner wall of the storage cavity 203c and cannot move further, which means that the plug plate 203e-2 has been fully installed in the socket 203e-3, thereby completing the installation and connection of the slag extrusion plate 201d;

[0050] When the slag extrusion plate 201d gradually loses its effect due to high temperature, high pressure and wear as the service time increases, or deforms, becomes blocked and other problems occur, affecting the normal operation and efficiency of the boiler, the threaded handle 203e is rotated in the opposite direction at the observation port 103d to drive the threaded rod 203d to rotate so that the two connecting plates 201c move toward each other until they are fully fitted, indicating that the plug plate 203e-2 has completely disengaged from the socket 203e-3 on the positioning block 202b. At this time, the slag extrusion plate 201d can be taken out separately for replacement or maintenance.

[0051] The remaining structure is the same as that of Example 2.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0054] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A slag extrusion device for a boiler slag removal system, characterized in that: include, A slag discharge unit (100) comprises a steel belt slag discharger (101), a slag outlet (102) arranged on the steel belt slag discharger (101), and a slag bucket assembly (103) arranged on the slag discharger; The slag extrusion unit (200) comprises a slag extrusion assembly (201) arranged on the slag bucket assembly (103), a positioning assembly (202) arranged on the slag extrusion assembly (201), and a fixing assembly (203) arranged on the slag extrusion assembly (201) and connected to the positioning assembly (202).

2. The slag extrusion device of the boiler slag removal system according to claim 1 is characterized by: The slag bucket assembly (103) comprises a slag bucket body (103a) arranged on the steel belt slag discharger (101), and two slag squeezing boxes (103b) arranged on the slag bucket body (103a).

3. The slag squeezing device of the boiler slag removal system according to claim 2 is characterized in that: The slag bucket assembly (103) further comprises a slag filter frame (103c) arranged on the slag squeezing box (103b), and an observation port (103d) arranged on the slag squeezing box (103b).

4. The slag squeezing device of the boiler slag removal system according to claim 3 is characterized by: The slag extrusion box (103b) is provided with a slag inlet (103e) which is in communication with the slag hopper body (103a), and the slag inlet (103e) is located directly above the slag outlet (102).

5. The slag extrusion device of the boiler slag removal system according to claim 4, characterized in that: The slag extrusion assembly (201) comprises two fixing frames (201a) arranged on the slag extrusion box (103b), a telescopic cylinder (201b) arranged on the fixing frames (201a), a connecting plate (201c) arranged on the telescopic cylinder (201b) and located inside the slag extrusion box (103b), and a slag extrusion plate (201d) arranged on the connecting plate (201c).

6. The slag extrusion device of the boiler slag removal system according to claim 5, characterized in that: The opposite sides of the two slag extrusion plates (201d) are both provided with regularly arranged sawtooth cone-shaped protrusions, and the sawtooth cone-shaped protrusions on the two slag extrusion plates (201d) are staggered with each other.

7. The slag squeezing device of the boiler slag removal system according to claim 6, characterized in that: The positioning assembly (202) comprises a positioning groove (202a) provided on the connecting plate (201c), and a positioning block (202b) provided on the slag extrusion plate (201d) and adapted to the positioning groove (202a).

8. The slag extrusion device of the boiler slag removal system according to claim 7, characterized in that: The fixing assembly (203) comprises a storage cavity (203c) arranged inside the connecting plate (201c), a threaded rod (203d) arranged on the inner wall of the storage cavity (203c), and a threaded screw handle (203e) arranged on the threaded rod (203d).

9. The slag squeezing device of the boiler slag removal system according to claim 8, characterized in that: The fixing assembly (203) further comprises two threaded plates (203e-1) arranged on the threaded rod (203d), two plugging plates (203e-2) arranged on the threaded plates (203e-1), and a socket (203e-3) arranged on the positioning block (202b) and adapted to the plugging plates (203e-2).

10. The slag extrusion device of the boiler slag removal system according to claim 9, characterized in that: The threaded plate (203e-1) is provided with a limit block (203e-4) connected to the plug plate (203e-2), and two sides of the outer surface of the threaded rod (203d) are provided with two opposite threads.

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