Boiler slag crusher

Abstract

The boiler slag crusher comprises a moving assembly which is arranged on the inner wall of a rotating assembly and can move left and right in the axial direction of the rotating assembly, and the moving assembly comprises an annular piece and a shaft piece arranged on one side of the annular piece; when the rotating assembly rotates, the annular piece rotates synchronously, and the annular piece moves left and right along the shaft pin. The rotating assembly drives the moving assembly to move left and right in the axial direction to find the disintegrating slag which cannot pass through the filter screen, so that the disintegrating slag which is not smashed on the filter screen is ground and smashed for the second time and the third time, manual repeated feeding is not needed, the disintegrating slag smashing efficiency is improved, and the problems of coal slag accumulation and repeated treatment are effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of boiler slag crushing, and in particular to a boiler slag crusher. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes the chemical energy in the fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The furnace refers to the place where the fuel is burned. The boiler includes two major parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or the mechanical energy can be further converted into electrical energy through a generator. After the boiler fuel burns, waste residues will be generated, and a waste residue crushing device is required for the treatment of the waste residues.

[0003] In some small thermal power plants, due to limited space, small slag crushers are usually used to crush coal blocks. When the thermal power plant is operating, in order to save costs, inferior coal is usually burned during the low electricity consumption period to provide heat for the boiler, and high-quality coal is burned during the high electricity consumption period to provide heat for the boiler. Similarly, in order to save costs, these two kinds of coal slags are usually mixed together for crushing treatment. However, the components in the inferior coal are impure, and it is easy to cause incomplete combustion, resulting in large coal slags mixed in the coal slag pile. When the small slag crusher processes such coal slags, it is difficult to crush all the coal slags into powder at one time. At this time, it is necessary to re-crush the slag multiple times, which will affect the efficiency of crushing coal slags and easily lead to the accumulation of coal slags. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is: to provide a slag crusher that can crush coal slags multiple times.

[0005] The above technical problem is solved by the following technical solution: The present invention provides a boiler slag crusher, which includes a moving component disposed on the inner wall of the rotating component and capable of moving left and right along the axial direction of the rotating component, including an annular member and a shaft member disposed on one side of the annular member; wherein,

[0006] When the rotating component rotates, the annular member rotates synchronously, and the annular member moves in a cyclic reciprocating manner along the axial direction.

[0007] In a preferred embodiment of the boiler slag crusher of the present invention: a curved groove is provided on the outer wall of the shaft member, and the curved groove is provided with a first contact end and a second contact end;

[0008] The first contact end is the highest end of the curved groove, and the second contact end is the lowest end of the curved groove; wherein, when the first contact end faces upward, the annular member moves to the left along the axial direction, and when the second contact end faces upward, the annular member moves to the right along the axial direction.

[0009] In a preferred embodiment of the boiler slag crusher of the present invention: The rotating assembly includes a rotating roller, a shaft wheel disposed on one side of the rotating roller, and a sliding groove formed on one side of the rotating roller.

[0010] In a preferred embodiment of the boiler slag crusher of the present invention: The annular member includes a slag crushing wheel, a convex block disposed on one side of the slag crushing wheel, a cross on the outer wall of the slag crushing wheel, and a rotating shaft disposed at the middle position of the cross.

[0011] In a preferred embodiment of the boiler slag crusher of the present invention: The outer wall of the cross is slidably connected to the inner wall of the sliding groove, the outer wall of the rotating shaft is slidably connected to the inner wall of the rotating roller, and one end of the rotating shaft is connected to one end of the shaft member.

[0012] In a preferred embodiment of the boiler slag crusher of the present invention: A fixing assembly is connected to one side of the rotating shaft. The fixing assembly includes a first support seat, a first bearing seat disposed on the top of the first support seat and having an inner wall rotatably connected to the outer wall of the rotating shaft, a support rod disposed on one side of the first support seat, and a guiding block disposed on the top of the support rod and having an outer wall slidably connected to the inner wall of the curved groove.

[0013] In a preferred embodiment of the boiler slag crusher of the present invention: A power assembly is connected to one side of the rotating shaft. The power assembly includes a second support seat, a second bearing seat disposed on the top of the second support seat, a connecting pipe disposed on the inner wall of the second bearing seat and having an inner wall slidably connected to one side of the rotating shaft, and a pulley disposed on one side of the connecting pipe and having an inner wall slidably connected to one side of the rotating shaft.

[0014] In a preferred embodiment of the boiler slag crusher of the present invention: A protection assembly is connected to the outer wall of the rotating shaft. The protection assembly includes a housing slidably connected to the rotating shaft on both sides, an upper baffle disposed on the top of the housing, a filter screen disposed on the inner wall of the housing, and a lower baffle disposed on the bottom of the housing.

[0015] In a preferred embodiment of the boiler slag crusher of the present invention: A clamp is disposed on the outer wall of the shaft wheel, and the outer wall of the clamp is connected to the outer wall of the housing. The rotating roller is located above the filter screen.

[0016] In a preferred embodiment of the boiler slag crusher of the present invention: A slag crushing assembly is disposed on the outer wall of the housing. The slag crushing assembly includes an arc plate having an outer wall connected to the inner wall of the housing, a fixing block disposed on one side of the arc plate, and a buffer rod disposed on one side of the arc plate and having an outer wall slidably connected to one side of the housing.

[0017] The beneficial effects of the present invention are as follows: The rotating assembly drives the moving assembly to move left and right axially to find the slag that cannot pass through the filter screen, so as to perform secondary and tertiary rolling crushing on the uncrushed slag on the filter screen. In this way, there is no need for manual repeated feeding, the efficiency of crushing slag is improved, and the problems of cinder accumulation and repeated treatment are effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0019] Figure 1 shows the overall structural diagram;

[0020] Figure 2 shows Figure 1 the right-side perspective sectional view;

[0021] Figure 3 shows the connection diagram of the rotating assembly and the moving assembly;

[0022] Figure 4 shows the structural diagram of the rotating assembly;

[0023] Figure 5 shows the structural diagram of the moving assembly;

[0024] Figure 6 shows the structural diagram of the fixing assembly;

[0025] Figure 7 shows the structural diagram of the power assembly;

[0026] Figure 8 shows the structural diagram of the protection assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific embodiments and the drawings.

[0028] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms can change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0029] Referring to Figures 1 to 8 , this embodiment provides a boiler slag crusher, including

[0030] Rotating assembly 100; and,

[0031] A moving assembly 200 disposed on the inner wall of the rotating assembly 100 and capable of moving left and right along the axial direction of the rotating assembly 100, including an annular member 201 and a shaft member 202 disposed on one side of the annular member 201; wherein, when the rotating assembly 100 rotates, the annular member 201 rotates synchronously, and the annular member 201 moves in a reciprocating cycle along the axial direction.

[0032] The rotating assembly 100 includes a rotating roller 101, a shaft wheel 102 disposed on one side of the rotating roller 101, and a sliding groove 103 opened on one side of the rotating roller 101. Among them, the rotating roller 101 and the shaft wheel 102 are integrally provided. As Figure 4 shown, a channel penetrating the rotating roller 101 is opened at each of the two perpendicular ends of the rotating roller 101, and the two channels are perpendicular to each other, forming a cross-shaped channel, which is the sliding groove 103. At the same time, the rotating roller 101 is made of ZGMn13 wear-resistant manganese steel, which has the characteristic of impact hardening. When impacted, the surface hardness is increased to 500 HB, which is suitable for crushing high-hardness slag blocks.

[0033] The annular member 201 includes a slag crushing wheel 201-1, a convex block 201-2 disposed on one side of the slag crushing wheel 201-1, a cross 201-3 disposed on the outer wall of the slag crushing wheel 201-1, and a rotating shaft 201-4 disposed at the middle position of the cross 201-3. Among them, as Figure 5 shown, a plurality of convex blocks 201-2 are disposed on both sides of the slag crushing wheel 201-1. When the slag crushing wheel 201-1 rotates, the convex blocks 201-2 will impact large coal blocks. The cross 201-3 and the slag crushing wheel 201-1 are connected together by welding, and the cross 201-3 is welded to the outer wall of one side of the rotating shaft 201-4.

[0034] The outer wall of the cross 201-3 is slidably connected to the inner wall of the sliding groove 103, the outer wall of the rotating shaft 201-4 is slidably connected to the inner wall of the rotating roller 101, and one end of the rotating shaft 201-4 is connected to one end of the shaft member 202. Among them, the width of the cross 201-3 is the same as the width of the inner wall of the sliding groove 103. When the cross 201-3 moves, it will squeeze the coal blocks in the sliding groove 103;

[0035] It should be noted that when the rotating shaft 201-4 drives the cross 201-3 to rotate, the cross 201-3 will drive the rotating roller 101 to rotate.

[0036] On one side of the rotating shaft 201-4, a power assembly 400 is connected. The power assembly 400 includes a second support base 401, a second bearing seat 402 arranged on the top of the second support base 401, a connecting pipe 403 arranged on the inner wall of the second bearing seat 402 and slidably connected to one side of the rotating shaft 201-4, and a pulley 404 arranged on one side of the connecting pipe 403 and slidably connected to one side of the rotating shaft 201-4. Among them, the pulley 404 is welded with the connecting pipe 403 on both sides. A groove is arranged on one side of the rotating shaft 201-4. Protrusions are arranged in both the pulley 404 and the connecting pipe 403 and are engaged with the groove on the rotating shaft 201-4. Therefore, when the pulley 404 rotates, it will drive the rotating shaft 201-4 to rotate, and then drive the cross 201-3 to rotate. The cross 201-3 will drive the rotating roller 101 to rotate;

[0037] It should be noted that the pulley 404 can be connected by a motor and a belt. When the motor rotates, the pulley 404 can be driven to rotate by the belt. Threaded holes are arranged at the bottom of the second support base 401, and the second support base 401 can be fixed to the ground by bolts. At the same time, threaded holes are also arranged at the top of the second support base 401, and the second bearing seat 402 can be fixed to the top of the second support base 401 by bolts;

[0038] It should also be noted that a bearing is arranged in the second bearing seat 402, and a protrusion is arranged in the bearing. A groove is also arranged at one end of the rotating shaft 201-4 connected to the second bearing seat 402, and the groove is engaged with the protrusion. This enables the rotating shaft 201-4 to rotate in the second bearing seat 402 and can also slide in the second bearing seat 402.

[0039] A protection assembly 500 is connected to the outer wall of the rotating shaft 201-4. The protection assembly 500 includes a housing 501 slidably connected to both sides of the rotating shaft 201-4, an upper baffle 502 arranged at the top of the housing 501, a filter screen 503 arranged on the inner wall of the housing 501, and a lower baffle 504 arranged at the bottom of the housing 501. Among them, a bearing is arranged on the housing 501 and is sleeved on the outer wall of the rotating shaft 201-4. The rotating shaft 201-4 can slide in the bearing. As Figure 8 shown, a feed inlet is arranged on one side of the top of the housing 501, and upper baffles 502 are respectively arranged on both sides of the feed inlet. A discharge outlet is arranged at the bottom of the housing 501, and lower baffles 504 are arranged on both sides of the discharge outlet. Among them, the upper baffle 502 can guide the flow direction of the coal blocks. When the coal slag enters the housing 501 from the feed inlet, the upper baffle 502 will guide the coal slag to flow towards the rotating roller 101. The rotating roller 101 rotates and strikes the coal slag, thereby crushing the coal slag. The lower baffle 504 can guide the moving direction of the coal slag powder and ensure that the coal slag powder can smoothly discharge from the discharge outlet;

[0040] It should be noted that the upper baffle 502 is connected to the housing 501 by bolts, and the same lower baffle 504 is also connected to the housing 501 by bolts.

[0041] A caliper 104 is provided on the outer wall of the axle wheel 102, and the outer wall of the caliper 104 is connected to the outer wall of the housing 501. The rotating roller 101 is located above the filter screen 503. Among them, the axle wheel 102 is disc-shaped, with grooves formed thereon, and the caliper 104 is clamped on the axle wheel 102. The caliper 104 is rotatably connected to the axle wheel 102. When the rotating roller 101 rotates, the caliper 104 can restrict the rotating roller 101, thereby improving the stability of the rotating roller 101, and one side of the caliper 104 is fixed to the housing 501 by bolts.

[0042] A slag crushing assembly 600 is provided on the outer wall of the housing 501. The slag crushing assembly 600 includes an arc plate 601 whose outer wall is connected to the inner wall of the housing 501, a fixed block 602 provided on one side of the arc plate 601, and a buffer rod 603 provided on one side of the arc plate 601 and whose outer wall is slidably connected to one side of the housing 501. Among them, when the coal slag is struck by the rotating roller 101, under the action of centrifugal force, the coal slag will impact the fixed block 602, and at this time the coal slag will be broken into fine powder.

[0043] It should be noted that one side of the arc plate 601 is connected by a connecting rod, and the connecting rod is rotatably connected to the outer wall of the housing 501. The buffer rod 603 penetrates one side of the housing 501, and a spring is sleeved on the side extending out of the housing 501. When the coal slag impacts the fixed block 602, the spring will be compressed, causing the arc plate 601 to displace, so that part of the force generated by the impact of the coal slag can be absorbed, and then the service life of the fixed block 602 can be extended;

[0044] A number of fixed blocks 602 are provided on the arc plate 601, and each fixed block 602 is fixed to the arc plate 6�1 by bolts.

[0045] In summary, when the motor drives the pulley 404 to rotate, the rotating shaft 201-4 will drive the cross 201-3 to rotate, and the cross 201-3 will drive the rotating roller 101 to rotate. When the coal slag flows from the feed port to the rotating roller 101, the rotating roller 101 will strike the coal slag, causing the coal slag fragments to fly onto the fixed block 602, and then the coal slag fragments will be crushed again. Under multiple impacts, the coal slag debris will be crushed into powder, and finally, under the screening of the filter screen 503, the coal slag powder will be discharged through the discharge port.

[0046] As an alternative embodiment, it specifically illustrates how to process the coal slag fragments that fail to be crushed to the standard particle size.

[0047] The outer wall of the shaft member 202 is provided with a curved groove 203. The curved groove 203 is provided with a first contact end 203-1 and a second contact end 203-2. Among them, as Figure 3 shown, the curved groove 203 is an inclined circular groove. When the shaft member 202 rotates, the first contact end 203-1 and the second contact end 203-2 will alternately rotate upward.

[0048] The first contact end 203-1 is the highest end of the curved groove 203, and the second contact end 203-2 is the lowest end of the curved groove 203. Among them, when the first contact end 203-1 faces upward, the annular member 201 moves axially to the left, and when the second contact end 203-2 faces upward, the annular member 201 moves axially to the right.

[0049] One side of the rotating shaft 201-4 is connected with a fixing component 300. The fixing component 300 includes a first support seat 301, a first bearing seat 302 arranged on the top of the first support seat 301 and rotatably connected with the inner wall and the outer wall of the rotating shaft 201-4, a supporting rod 303 arranged on one side of the first support seat 301, and a guiding block 304 arranged on the top of the supporting rod 303 and slidably connected with the inner wall of the curved groove 203. Among them, when the motor drives the pulley 404 to rotate, the rotating shaft 201-4 will drive the shaft member 202 to rotate. Because the guiding block 304 is fixed at a point and does not move, when the shaft member 202 rotates, under the action of force, the first contact end 203-1 and the second contact end 203-2 will alternately contact the guiding block 304, which will change the position of the shaft member 202. Because the rotating shaft 201-4 can slide, the rotating shaft 201-4 can also drive the cross 201-3 to move when rotating. So at this time, the slag crushing wheel 201-1 can keep moving synchronously with the rotating roller 101 during the moving process. At this time, the coal slag that fails to pass through the filter screen 503 and falls into the discharge port on the filter screen 503 is crushed during the moving process of the slag crushing wheel 201-1. In this way, it is not necessary to process the coal slag multiple times. At the same time, during the moving process of the slag crushing wheel 201-1, the accumulated fine powder will also be driven to move, so that the fine powder can pass through the filter screen 503 faster, thereby preventing the fine powder from blocking the filter screen 503.

[0050] It should be noted that the guiding block 304 is made of cemented carbide YG8, the surface roughness Ra≤0.8μm, and the fit clearance with the curved groove 203 is controlled within 0.05-0.1mm. When the guiding block 304 is used, molybdenum disulfide grease needs to be continuously applied to the guiding block 304 and the curved groove 203 to reduce the friction between the two, thereby increasing the service life of the two;

[0051] The shaft part 202 is made of 42CrMo steel. After carburizing and quenching treatment, the surface hardness is ≥60HRC. Similarly, when the shaft part 202 is in use, molybdenum disulfide grease needs to be applied to the positions where friction will occur to reduce the friction force.

[0052] It should be noted that the first support seat 301 is fixedly connected to the first bearing seat 302 by bolts. A groove is provided at the connection between the rotating shaft 201-4 and the first bearing seat 302, and a protrusion is provided on the first bearing seat 302. This protrusion engages with the groove, and there is no fixed connection relationship between the rotating shaft 201-4 and the first bearing seat 302. Therefore, the rotating shaft 201-4 can slide on the first bearing seat 302.

[0053] As an alternative embodiment, another shape of the convex block 201-2 is provided.

[0054] The annular part 201 includes a slag crushing wheel 201-1, a convex block 201-2 provided on one side of the slag crushing wheel 201-1, a cross 201-3 provided on the outer wall of the slag crushing wheel 201-1, and a rotating shaft 201-4 provided at the middle position of the cross 201-3. Among them, the convex block 201-2 is rectangular in shape, and the rectangle has a large contact area. When rotating, it can well break up large pieces of slag. Here, the convex block 201-2 can be replaced with a wedge-shaped structure with a wedge angle of 35° and a tip thickness of 1.5 mm. At this time, the crushing effect of the convex block 201-2 can be increased, and it can break up slag blocks with a hardness ≥300HB. At the same time, the convex block 201-2 can also be replaced with a serrated structure, which can improve the crushing accuracy and is better suitable for fine crushing scenarios where the particle size requirement is ≤1 mm.

[0055] Finally, it should be pointed out that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A boiler slag crusher, characterized in that: Comprising, a rotating assembly (100); and, a moving assembly (200) disposed on the inner wall of the rotating assembly (100) and capable of moving left and right along the axial direction of the rotating assembly (100), including an annular member (201) and a shaft member (202) disposed on one side of the annular member (201); wherein, when the rotating assembly (100) rotates, the annular member (201) rotates synchronously, and the annular member (201) moves cyclically and reciprocally along the axial direction.

2. The boiler slag crusher according to claim 1, characterized in that: A curved groove (203) is formed on the outer wall of the shaft member (202), and the curved groove (203) is provided with a first contact end (203-1) and a second contact end (203-2); The first contact end (203-1) is the highest end of the curved groove (203), and the second contact end (203-2) is the lowest end of the curved groove (203); wherein, when the first contact end (203-1) faces upward, the annular member (201) moves to the left along the axial direction, and when the second contact end (203-2) faces upward, the annular member (201) moves to the right along the axial direction.

3. The boiler slag crusher according to claim 2, characterized in that: The rotating assembly (100) includes a rotating roller (101), a shaft wheel (102) disposed on one side of the rotating roller (101), and a sliding groove (103) formed on one side of the rotating roller (101).

4. The boiler slag crusher according to claim 3, characterized in that: The annular member (201) includes a slag crushing wheel (201-1), a convex block (201-2) disposed on one side of the slag crushing wheel (201-1), a cross (201-3) disposed on the outer wall of the slag crushing wheel (201-1), and a rotating shaft (201-4) disposed at the middle position of the cross (201-3).

5. The boiler slag crusher according to claim 4, characterized in that: The outer wall of the cross (201-3) is slidably connected to the inner wall of the sliding groove (103), the outer wall of the rotating shaft (201-4) is slidably connected to the inner wall of the rotating roller (101), and one end of the rotating shaft (201-4) is connected to one end of the shaft member (202).

6. The boiler slag crusher according to claim 5, wherein: A fixing assembly (300) is connected to one side of the rotating shaft (201-4), and the fixing assembly (300) includes a first support seat (301), a first bearing seat (302) disposed on the top of the first support seat (301) and having an inner wall rotatably connected to the outer wall of the rotating shaft (201-4), a support rod (303) disposed on one side of the first support seat (301), and a guiding block (304) disposed on the top of the support rod (303) and having an outer wall slidably connected to the inner wall of the curved groove (203).

7. The boiler slag crusher according to claim 6, characterized in that: A power assembly (400) is connected to one side of the rotating shaft (201-4), and the power assembly (400) includes a second support seat (401), a second bearing seat (402) disposed on the top of the second support seat (401), a connecting pipe (403) disposed on the inner wall of the second bearing seat (402) and having an inner wall slidably connected to one side of the rotating shaft (201-4), and a pulley (404) disposed on one side of the connecting pipe (403) and having an inner wall slidably connected to one side of the rotating shaft (201-4).

8. The boiler slag crusher according to claim 7, characterized in that: A protective component (500) is connected to the outer wall of the rotating shaft (201-4). The protective component (500) includes a housing (501) slidably connected to the rotating shaft (201-4) on both sides, an upper baffle (502) provided at the top of the housing (501), a filter screen (503) provided on the inner wall of the housing (501), and a lower baffle (504) provided at the bottom of the housing (501).

9. The boiler slag crusher according to claim 8, wherein: A clamp (104) is provided on the outer wall of the shaft wheel (102). The outer wall of the clamp (104) is connected to the outer wall of the housing (501). The rotating roller (101) is located above the filter screen (503).

10. The boiler slag crusher according to claim 9, wherein: A slag crushing component (600) is provided on the outer wall of the housing (501). The slag crushing component (600) includes an arc-shaped plate (601) whose outer wall is connected to the inner wall of the housing (501), a fixed block (602) provided on one side of the arc-shaped plate (601), and a buffer rod (603) provided on one side of the arc-shaped plate (601) and whose outer wall is slidably connected to one side of the housing (501).

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