Vertical shaft crusher

Abstract

The utility model belongs to the technical field of crushing machinery, and particularly relates to a vertical shaft crusher. The top end of the crusher shell is communicated with the negative pressure air pipe, the outlet of the negative pressure air pipe is connected with the air inlet of the fine sand separator, the air outlet of the fine sand separator is connected with the dust remover, and the bottom end of the fine sand separator is provided with the discharging port. After dust is subjected to powder separation through the fine sand separator, fine sand is mixed with materials at a discharging port of the crusher, the dust enters the dust remover, the fine sand in the dust is separated and recycled, the content of the fine sand in finished sand is guaranteed, crushing, dust removal and powder separation are conducted synchronously, and the crushed materials can directly enter a follow-up vibrating screen to be screened; in addition, the fine sand separator for powder selection and the dust removal structure are arranged together, a power source does not need to be independently provided for each stage, and power is greatly saved.

Description

Technical Field

[0001] This application belongs to the technical field of crushing machinery, and particularly relates to a vertical shaft crusher. Background Art

[0002] Vertical shaft crushers are commonly used equipment in the fields of stone and mining processing. After the materials fall into the rotor from the feed inlet, they are accelerated by the high-speed rotating rotor and then thrown out, colliding with the material lining layer formed in the crushing cavity and being crushed. They are widely used in industries such as metal and non-metal ores, highways, water conservancy and hydropower, and artificial sand making.

[0003] When a vertical shaft crusher operates, it will generate a large amount of dust. If no treatment is done to the dust, it will cause a large accumulation of dust in the environment, which not only affects the lubrication of the equipment and the effect of electrical insulation, but also poses a hazard to the health of workers. Therefore, in the prior art, a dust removal pipeline is generally directly connected to the crusher to directly suck away the dust.

[0004] A vertical shaft crusher is usually used in combination with a vibrating screen to screen out qualified materials, and the oversized materials are returned to the crusher for further crushing. Therefore, before screening the crushed materials, powder selection is also required to improve the screening efficiency. However, the existing dust removal and powder selection devices occupy a large space and consume a large amount of power at each stage. Summary of the Invention

[0005] Aiming at the above problems existing in the prior art, this application provides a vertical shaft crusher to solve the problems that the existing dust removal and powder selection devices occupy a large space and consume a large amount of power at each stage.

[0006] The technical solution provided by this application is as follows:

[0007] A vertical shaft crusher includes a negative pressure air duct and a fine sand separator. The crushing cavity of the crusher is connected to the negative pressure air duct. The inlet of the fine sand separator is connected to the negative pressure air duct, and the outlet of the fine sand separator is connected to a dust collector. The fine sand separator includes a baffle plate. A discharge port is provided at the bottom end of the fine sand separator, and the discharge port is connected to the discharge port of the crusher through a switching mechanism.

[0008] Optionally, a grid air inlet is provided at the bottom end of the crushing cavity of the crusher.

[0009] Optionally, the fine sand separator further includes a wind guiding plate.

[0010] Optionally, the fine sand separator includes a housing, and the baffle plate is slidably connected to the housing up and down.

[0011] Optionally, the baffle plate extends out from the top end of the housing of the fine sand separator. A fixing plate is provided on the housing of the fine sand separator, a sliding groove is provided on the fixing plate, and the baffle plate is detachably fixed to the sliding groove.

[0012] Optionally, the air deflector is rotatably connected to the fine sand separator housing.

[0013] Optionally, a rotating hole is provided on the inner wall of the fine sand separator. A rotating shaft is rotatably connected in the rotating hole. The rotating shaft is fixedly connected to the air deflector. The end of the rotating shaft passes through the fine sand separator housing and is connected to a rotating block. A rotating groove is provided on the outer side wall of the fine sand separator housing. The rotating block is slidably connected to the rotating groove, and the rotating block is detachably fixed to the rotating groove.

[0014] Optionally, the opening and closing mechanism includes a weight valve.

[0015] Optionally, the fine sand separator housing is conical. A discharge pipe is connected to the bottom of the fine sand separator. The bottom of the discharge pipe is connected to the discharge port of the crusher. The weight valve is arranged on the discharge pipe.

[0016] Optionally, the dust collector includes a bag filter.

[0017] At least include the following beneficial effects:

[0018] In this application, by adding a structure integrating powder selection and dust removal on the vertical shaft crusher, after the fine sand is separated by the fine sand separator from the dust, the fine sand is mixed with the materials at the discharge port of the crusher, and the dust enters the dust collector. Not only the fine sand in the dust is separated and recovered to ensure the fine sand content in the finished sand, but also the crushing and dust removal and powder selection are carried out synchronously. The crushed materials can directly enter the subsequent vibrating screen for screening, saving space and time. Moreover, the fine sand separator for powder selection and the dust removal structure are arranged together, and there is no need to provide a power source separately for each stage, greatly saving power. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a structural diagram of a vertical shaft crusher in Embodiment 1;

[0021] Figure 2 It is a side view of a vertical shaft crusher in Embodiment 1;

[0022] Figure 3 It is a structural diagram of a fine sand separator in Embodiment 2;

[0023] Explanation of the Reference Numerals:

[0024] 1. Crusher; 2. Negative pressure air duct; 3. Fine sand separator; 31. Air duct; 32. Air guide plate; 33. Baffle plate; 4. Grid air inlet; 5. Dust collector; 6. Opening and closing mechanism; 7. Fixed plate; 71. First bolt; 8. Rotating shaft; 81. Rotating block; 82. Rotating groove; 9. Feeding pipe. Detailed implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way constitutes a limitation on the present application and its application or use.

[0026] Embodiment 1

[0027] As Figure 1 and Figure 2 shown, a vertical shaft crusher includes a negative pressure air duct 2 and a fine sand separator 3. A grid air inlet 4 and a discharge port are provided at the lower part of the crushing chamber of the crusher 1. The discharge port is arranged below the grid air inlet 4. The top of the crushing chamber of the crusher 1 is communicated with the negative pressure air duct 2. Inlets and outlets are provided on the left and right sides of the fine sand separator 3. An air duct 31 is formed between the inlet and the outlet. Both the air duct 31 and the negative pressure air duct 2 are along the horizontal direction. The outlet of the negative pressure air duct 2 is connected to the inlet of the fine sand separator 3. The outlet of the fine sand separator 3 is connected to a dust collector 5. A baffle plate 33 is provided at the top of the fine sand separator 3. Air guide plates 32 are provided on both sides of the bottom of the air duct 31. The baffle plate 33 is arranged between the two air guide plates 32. A feeding port is provided at the bottom end of the fine sand separator 3. The feeding port is connected to the discharge port of the crusher 1 through an opening and closing mechanism 6.

[0028] Blowing air into the crushing chamber of the crusher 1 through the grid air inlet 4 takes away the falling material process and dust in the crushing chamber in the crusher 1. The negative pressure air duct 2 and the dust collector 5 above the crusher generate negative pressure to suck the generated dust into the fine sand separator 3. The fine sand in the dust is decelerated through the baffle plate 33 and the air guide plates 32 on the fine sand separator 3 and falls into the discharge port of the crusher 1 from the feeding port to be mixed with the crushed material. The air flow is guided by the air guide plates 32 and then enters the dust collector 5 along the air duct 31 to achieve dust removal. By controlling the aperture of the grid air inlet 4, the material can be prevented from falling out, and by controlling the wind speed, the dust can be prevented from overflowing.

[0029] Specifically, the baffle plate 33 is arranged between the two air guide plates 32 to prevent the material from falling before reaching above the discharge port or directly entering the dust collector 5 and thus unable to separate the fine powder.

[0030] Embodiment 2

[0031] As Figure 3As shown in the figure, the difference between this embodiment and Embodiment 1 lies in that the baffle plate 33 is slidably connected to the fine sand separator 3 up and down, and the air guide plate 32 is rotatably connected to the fine sand separator 3.

[0032] Specifically, the upper part of the baffle plate 33 extends out from the top end of the fine sand separator 3. A fixing plate 7 is connected to the fine sand separator 3. A sliding groove along the vertical direction is provided on the fixing plate 7. A first bolt 71 is provided on the baffle plate 33. One end of the first bolt 71 passing through the sliding groove is connected with a nut. By sliding the first bolt 71 along the sliding groove, the up and down sliding of the baffle plate 33 is realized, so as to adjust the wind direction and reduce the dust speed, facilitate the adjustment of the fine sand separation efficiency, control the fine sand content. After adjusting to the appropriate position, the baffle plate 33 can be fixed on the fixing plate 7 by using the nut.

[0033] A rotating hole is provided on the inner wall of the fine sand separator 3. A rotating shaft 8 is rotatably connected in the rotating hole. The rotating shaft 8 is fixedly connected to the air guide plate 32. The end of the rotating shaft 8 penetrates out of the fine sand separator 3 and is connected with a rotating block 81. A rotating groove 82 is provided on the outer side wall of the fine sand separator 3. One end of the rotating block 81 away from the rotating shaft 8 is slidably connected to the rotating groove 82. The rotating block 81 is fixed to the rotating groove 82 by a second bolt. By rotating the second bolt to release the fixation between the rotating block 81 and the rotating groove 82, and rotating the rotating block 81 to drive the air guide plate 32 to rotate through the rotating shaft 8 to adjust the wind direction. After the air guide plate 32 is adjusted to the appropriate position, rotate the second bolt in the reverse direction so that the second bolt passes through the rotating block 81 and the rotating groove 82 and abuts against the side wall of the fine sand separator 3, then the fixation of the rotating block 81 and the air guide plate 32 can be realized.

[0034] Specifically, the opening and closing mechanism 6 is a gravity valve. The fine sand separator 3 is conical, which can collect the settled fine sand. The bottom of the fine sand separator 3 is connected with a blanking pipe 9 through a gravity valve. The bottom of the blanking pipe 9 is connected to the discharge port of the crusher. Thus, the valve only opens after a certain amount of particles accumulate at the gravity turning port. The opening and closing mechanism 6 is kept closed except during blanking, so as to prevent upward air flow in the blanking pipe 9 from affecting the gravity settlement of fine powder.

[0035] In this embodiment, the dust collector 5 is a bag dust collector 5, which is connected after the fine powder is separated, saving power and processing time.

[0036] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A vertical shaft crusher, characterized in that, It includes a negative pressure air duct (2) and a fine sand separator (3). The crushing chamber of the crusher (1) is communicated with the negative pressure air duct (2). The inlet of the fine sand separator (3) is connected to the negative pressure air duct (2), and the outlet of the fine sand separator (3) is connected to a dust collector (5). The fine sand separator (3) includes a baffle plate (33). A discharge port is arranged at the bottom end of the fine sand separator (3), and the discharge port is connected to the discharge port of the crusher through an opening and closing mechanism (6).

2. The vertical shaft crusher according to claim 1, characterized in that, A grid air inlet (4) is arranged at the bottom end of the crushing chamber of the crusher (1).

3. The vertical shaft crusher according to claim 1, characterized in that, The fine sand separator (3) further includes a wind guiding plate (32).

4. The vertical shaft crusher according to claim 1, characterized in that The fine sand separator (3) includes a housing, and the baffle plate (33) is slidably connected to the housing up and down.

5. The vertical shaft crusher according to claim 4, characterized in that, Above the baffle plate (33) extends from the top end of the housing of the fine sand separator (3). A fixing plate (7) is arranged on the housing of the fine sand separator (3), a sliding groove is arranged on the fixing plate (7), and the baffle plate (33) is detachably fixed to the sliding groove.

6. The vertical shaft crusher according to claim 3, wherein, The wind guiding plate (32) is rotatably connected to the fine sand separator (3).

7. The vertical shaft crusher according to claim 6, characterized in that, A rotating hole is arranged on the inner wall of the fine sand separator (3), a rotating shaft (8) is rotatably connected in the rotating hole, the rotating shaft (8) is fixedly connected to the wind guiding plate (32), the end of the rotating shaft (8) penetrates out of the fine sand separator (3) and is connected to a rotating block (81), a rotating groove (82) is arranged on the outer side wall of the fine sand separator (3), the rotating block (81) is slidably connected to the rotating groove (82), and the rotating block (81) is detachably fixed to the rotating groove (82).

8. The vertical shaft crusher according to claim 1, characterized in that, The opening and closing mechanism (6) includes a weight valve.

9. The vertical shaft crusher according to claim 8, wherein, The housing of the fine sand separator (3) is conical. A discharge pipe (9) is connected to the bottom of the fine sand separator (3), the bottom of the discharge pipe (9) is connected to the discharge port of the crusher, and the weight valve is arranged on the discharge pipe (9).

10. The vertical shaft crusher according to claim 1, characterized in that, The dust collector (5) includes a bag filter (5).

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