Dust removal type crusher

By designing a spiral air supply pipe and a rotating pipe in the crusher to form a vortex, dust is captured and carried away, thus solving the dust problem of impact crushers when crushing stone and achieving efficient dust removal and environmental protection.

CN118925916BActive Publication Date: 2025-11-07ZHALAI NUOER COAL IND CO LTD
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Patent Information

Application Number
CN202411137723.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-11-07
Estimated Expiration
2044-08-19

AI Technical Summary

Technical Problem

Impact crushers generate a large amount of dust when crushing stone, leading to environmental problems.

Method used

A dust-removing crusher was designed, which adopts a primary air supply component and a secondary air supply component. The spiral air supply pipe and the rotating pipe form a vortex to capture and carry dust. Combined with the design of the shell and the air outlet, it achieves efficient dust removal.

Benefits of technology

It significantly improves dust control capabilities and work efficiency, balancing economic benefits and environmental protection, and ensuring effective dust control even under high loads.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a dust-removing type crusher which comprises a body, a first air supply assembly, a second air supply assembly and a shell, the body comprises a feeding assembly, a crushing assembly and a discharging assembly which are sequentially arranged, the feeding assembly is provided with a feeding port, the crushing assembly is used for crushing materials, the discharging assembly is provided with a discharging port, and the discharging assembly comprises a discharging shell; the first air supply assembly comprises a first air supply pipe which is spiral and surrounds the outer circumferential side of the discharging shell, the discharging shell is provided with an air supply port, a sub-pipe is arranged in the first air supply pipe, the inlet end of the sub-pipe is arranged in the first air supply pipe, the outlet end of the sub-pipe is communicated with the air supply port, and the air outlet direction of the air supply port is inclined upward; and the second air supply assembly is arranged higher than the first air supply assembly. The dust-removing type crusher of the embodiment can effectively improve the dust control capability and working efficiency of the system through the cooperative work of the first air supply assembly and the second air supply assembly, and meanwhile, the economic benefits and environmental protection are taken into account.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of stone crushing equipment, in particular, to a dust removal type crusher. BACKGROUND

[0002] The crusher, also known as a stone crusher, is a crushing machine used in the processing of metal and non-metallic minerals, which can crush the mined raw ore into small particles. The impact crusher is a kind of crusher that uses centrifugal force to crush stones. Its working principle is that the stones fall directly from the upper part of the machine into the rotating disc at high speed, and under the action of high-speed centrifugal force, they collide with the target stones that are divided in an umbrella-shaped manner around the rotating disc to produce high-speed impact and high-density crushing. After mutual impact, the stones form a vortex between the rotating disc and the shell, causing multiple mutual impacts, friction and crushing, and are discharged directly from the lower part. In the related art, the impact crusher produces a large amount of dust when crushing stones, which does not meet the environmental protection requirements. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art. To this end, the embodiments of the present application propose a dust removal type crusher, which has good environmental protection effect.

[0004] The dust removal type crusher of the embodiments of the present application comprises:

[0005] A body, the body comprises a feeding assembly, a crushing assembly and a discharging assembly arranged in sequence, the feeding assembly is provided with a feeding port, the crushing assembly is used for crushing materials, the discharging assembly is provided with a discharging port, and the discharging assembly comprises a discharging shell;

[0006] A first air supply assembly, the first air supply assembly comprises a first air supply pipe, the first air supply pipe is spiral and surrounds the outer circumferential side of the discharging shell, the discharging shell is provided with an air supply port, the first air supply pipe is provided with a sub-pipe, the inlet end of the sub-pipe is arranged in the first air supply pipe, the outlet end of the sub-pipe is in communication with the air supply port, and the air outlet direction of the air supply port is inclined upward;

[0007] A second air supply assembly, the second air supply assembly is arranged higher than the first air supply assembly;

[0008] An outer shell, the outer shell is arranged on the outer circumferential side of the feeding assembly, the top of the outer shell is sealingly connected with the feeding assembly, the bottom of the outer shell is sealingly connected with the crushing assembly, and the outer shell is provided with an air outlet.

[0009] The dust removal type crusher of the embodiments of the present application, the first air supply assembly and the second air supply assembly work cooperatively, effectively improving the dust control capability and working efficiency of the system, and taking into account the economic benefit and environmental protection at the same time.

[0010] In some embodiments, the air supply ports are multiple, and the multiple air supply ports are arranged in sequence along the extension direction of the primary air supply pipe;

[0011] The sub-pipes are multiple, and the multiple sub-pipes correspond to the multiple air supply ports one-to-one.

[0012] In some embodiments, the cross section of the inlet end of the sub-pipe is perpendicular to the center line of the primary air supply pipe.

[0013] In some embodiments, the vector of the air outlet direction of the air supply port is a dedusting crusher, the vector of the flow direction of the air flow of the primary air supply pipe is B, the included angle between the dedusting crusher and B is α, and α is 30-60 degrees.

[0014] In some embodiments, the included angle between the dedusting crusher and the center line of the body is 30-45 degrees.

[0015] In some embodiments, the feeding assembly includes an inner shell, the feeding port is arranged on the inner shell, the bottom of the inner shell is in the shape of an inverted cone, and the bottom of the inner shell is provided with a first discharging port.

[0016] In some embodiments, the crushing assembly includes a rotating part, the rotating part is arranged below and spaced from the first discharging port, and the rotating part is rotatable relative to the inner shell.

[0017] The rotating part includes a driving part and a rotating part, the driving part and the rotating part are connected, and the driving part is used to drive the rotating part to rotate.

[0018] In some embodiments, the crushing assembly further includes a crushing part, the rotating part is rotatably arranged in the crushing part, the crushing part is arranged on the outer peripheral side of the rotating part, the crushing part is arranged spaced from the rotating part to form a second discharging port, and the second discharging port is in communication with the discharging port.

[0019] In some embodiments, the secondary air supply assembly includes a secondary air supply pipe, a connecting pipe and a rotating pipe, the top of the rotating pipe is fixedly connected with the rotating part, the bottom of the rotating pipe is rotatably connected with the connecting pipe, and the secondary air supply pipe is in communication with the rotating pipe through the connecting pipe.

[0020] In some embodiments, the outer peripheral side of the rotating pipe is provided with multiple secondary air supply ports, and the multiple secondary air supply ports are arranged towards the crushing part. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the dedusting crusher of the embodiment of the present application.

[0022] Figure 2 is a schematic diagram of airflow and material flow path of the dust removal type crusher of the embodiment of the present application.

[0023] Figure 3 is a schematic diagram of arrangement of the sub-pipe in the spiral pipe of the dust removal type crusher of the embodiment of the present application.

[0024] Figure 4 is a schematic diagram of longitudinal sectional structure of the spiral pipe of the dust removal type crusher of the embodiment of the present application.

[0025] Reference signs:

[0026] body 1; feeding assembly 11; feeding port 111; crushing assembly 12; rotating part 121; driving part 1211; rotating part 1212; crushing part 122; second material falling port 123; discharging assembly 13; discharging port 131; discharging shell 132; first air supply port 133;

[0027] first air supply assembly 2; first air supply pipe 21; sub-pipe 211; total air supply pipe 212; spiral pipe 213; joint 214;

[0028] second air supply assembly 3; second air supply pipe 31; connecting pipe 32; rotating pipe 33; second air supply port 331; shell 4; air outlet 41;

[0029] dust removal machine 5. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0031] As shown in Figures 1-4 , the dust removal type crusher of the embodiment of the present application comprises a body 1, a first air supply assembly 2, a second air supply assembly 3 and a shell 4.

[0032] The body 1 comprises a feeding assembly 11, a crushing assembly 12 and a discharging assembly 13 arranged in sequence, the feeding assembly 11 is provided with a feeding port 111, the crushing assembly 12 is used for crushing the material, the discharging assembly 13 is provided with a discharging port 131, and the discharging assembly 13 comprises a discharging shell 132.

[0033] The first air supply assembly 2 comprises a first air supply pipe 21, the first air supply pipe 21 is spiral-shaped and surrounds the outer peripheral side of the discharging shell 132, the discharging shell 132 is provided with a first air supply port 133, the first air supply pipe 21 is provided with a sub-pipe 211 inside, the inlet end of the sub-pipe 211 is arranged in the first air supply pipe 21, the outlet end of the sub-pipe 211 is communicated with the first air supply port 133, and the air outlet direction of the first air supply port 133 is inclined upward.

[0034] The secondary air supply assembly 3 is arranged higher than the primary air supply assembly 2.

[0035] The shell 4 is arranged on the outer circumferential side of the feeding assembly 11, the top of the shell 4 is sealingly connected with the feeding assembly 11, the bottom of the shell 4 is sealingly connected with the crushing assembly 12, and the shell 4 is provided with an air outlet 41.

[0036] For example, the feeding assembly 11, the crushing assembly 12 and the discharging assembly 13 are arranged in sequence from top to bottom, the stone enters the feeding assembly 11 from the feeding port 111, is crushed by the crushing assembly 12 when passing through the crushing assembly 12, and is discharged from the discharging port 131.

[0037] The primary air supply assembly 2 and the secondary air supply assembly 3 are used for injecting air flow into the body 1 from the lower direction of the body 1, and the air flow flows upwards from the lower direction of the body 1, thereby taking away the dust in the body 1.

[0038] The primary air supply pipe 21 is arranged on the outer circumferential side of the discharging shell 132 and is fixedly connected with the discharging shell 132, for example, the primary air supply pipe 21 is welded on the discharging shell 132.

[0039] The primary air supply pipe 21 comprises a total air supply pipe 212 and a spiral pipe 213, the inlet end of the total air supply pipe 212 is communicated with the gas source, the outlet end of the total air supply pipe 212, the inlet end of the spiral pipe 213 and the outlet end of the spiral pipe 213 are communicated through a three-way joint 214, and the flow direction of the air flow at the outlet end of the spiral pipe 213 is consistent with the flow direction of the air flow at the inlet end of the spiral pipe 213, so that the excess air flow can be introduced into the spiral pipe 213 again, thereby realizing the recycling of the gas.

[0040] The air flow entering the spiral pipe 213 enters from the sub-pipe 211, and then flows into the discharging shell 132 from the primary air outlet 133, flows upwards after entering the discharging shell 132, and then flows out from the air outlet 41, thereby taking away the dust generated in the body 1. The air outlet 41 is connected with the dust collector 5.

[0041] The secondary air supply assembly 3 is arranged above the primary air supply assembly 2 and is arranged lower than the air outlet 41.

[0042] The dust removal type crusher of the embodiment of the application injects air flow into the discharging shell 132 through the spiral primary air supply pipe 21 and the sub-pipe 211, and the air flow has a specific direction, i.e. obliquely upwards, thereby helping to capture and carry the fine particles and dust generated in the crushing process, and ensuring that the fine particles and dust are not accumulated in the equipment but are taken out of the system by the air flow.

[0043] During the low peak period, only the first air supply assembly 2 needs to be started to meet the dust removal demand, while during the high peak period, the first air supply assembly 2 and the second air supply assembly 3 are started simultaneously, which can significantly enhance the dust removal effect and ensure that the dust can be effectively controlled even under high load.

[0044] The dust removal type crusher of the embodiment of the present application has the first air supply assembly 2 and the second air supply assembly 3 working cooperatively, which effectively improves the dust control capability and working efficiency of the system, and takes into account the economic benefit and environmental protection.

[0045] In some embodiments, as shown in Figure 2 The plurality of first air supply ports 133 are arranged in sequence along the extension direction of the first air supply pipe 21, and the plurality of sub-pipes 211 correspond to the plurality of first air supply ports 133 one by one.

[0046] For example, the plurality of first air supply ports 133 are arranged in sequence on the discharge shell 132, and the plurality of sub-pipes 211 arranged in sequence are arranged in the air supply pipe, and the plurality of sub-pipes 211 correspond to the plurality of first air supply ports 133 one by one.

[0047] In this way, the plurality of first air supply ports 133 are arranged in a spiral shape on the discharge shell 132, and the air outlet direction of each first air supply port 133 is arranged obliquely upward, so that the rotational flow is formed when the plurality of first air supply ports 133 exhaust air together, thereby improving the ability of the airflow to carry dust and further improving the dust removal effect.

[0048] In some embodiments, as shown in Figure 3 The cross section of the inlet end of the sub-pipe 211 is perpendicular to the center line of the first air supply pipe 21. In other words, the center line of the inlet end of the sub-pipe 211 is generally consistent with the extension direction of the center line of the air supply pipe, so that the airflow enters the sub-pipe 211 from the air supply pipe.

[0049] In some embodiments, as shown in Figure 3 The vector of the air outlet direction of the first air supply port 133 is A, the vector of the flow direction of the airflow of the first air supply pipe 21 of the dust removal type crusher is B, the angle between the dust removal type crusher and B is α, and α is 30 degrees-60 degrees. For example, α is 30 degrees, 45 degrees and 60 degrees, etc. In this way, the rotational flow is formed.

[0050] In some embodiments, as shown in Figure 4 The angle between the dust removal type crusher and the center line of the body 1 is 30 degrees-45 degrees. For example, the angle between the dust removal type crusher and the center line C of the body 1 is β, and β is 30 degrees, 45 degrees and 60 degrees, etc. In this way, the rotational flow is formed.

[0051] In some embodiments, as shown in Figure 1As shown, the feeding assembly 11 includes an inner shell, and a feeding port 111 is arranged on the inner shell. The bottom of the inner shell is in the shape of an inverted cone, and the bottom of the inner shell is provided with a first dropping port. The feeding port 111 is arranged on one side above the inner shell or above the shell, and thus, the inverted cone shape of the inner shell helps the materials to be smoothly concentrated to the bottom and reduces the blockage of the stone materials.

[0052] In some embodiments, as shown in Figure 2 As shown, the crushing assembly 12 includes a rotating part 121 arranged below and spaced from the first dropping port, and the rotating part 121 is rotatable relative to the inner shell.

[0053] The rotating part 121 includes a driving part 1211 and a rotating part 1212 connected to each other, and the driving part 1211 is used to drive the rotating part 1212 to rotate.

[0054] For example, the rotating part 121 is arranged below and spaced from the first dropping port, which can ensure that the materials have enough space to fall before entering the crushing area, avoiding the blockage of the materials at the dropping port.

[0055] The driving part 1211 is responsible for providing power, which is usually driven by a motor or other power source through a transmission device such as a belt, a chain or a direct connection. The rotating part 1212 is the part that rotates under the action of the driving part 1211, for example, the rotating part 1212 is provided with crushing blades or crushing teeth, and the specific form depends on the characteristics of the stone materials and the required crushing effect. Thus, when the materials fall from the first dropping port, they will encounter the high-speed rotating rotating part 1212, and the crushing tools (such as hammer heads, blades, etc.) on the rotating part 1212 will impact the materials with high kinetic energy, crushing them into smaller particles. The crushed materials can then be further processed through subsequent screening, conveying or other processing steps.

[0056] Optionally, the rotating part 1212 is a flat plate, and when the stone materials fall on the rotating part 1212, the rotating rotating part 1212 can throw the stone materials out, and the thrown stone materials impact the components with higher hardness than the stone materials with high kinetic energy and are crushed.

[0057] In some embodiments, as shown in Figure 2 As shown, the crushing assembly 12 further includes a crushing part 122, the rotating part 1212 is rotatably arranged in the crushing part 122, the crushing part 122 is arranged on the outer circumferential side of the rotating part 1212, the crushing part 122 is arranged in spaced relation with the rotating part 1212 to form a second dropping port 123, and the second dropping port 123 is in communication with the discharge port 131.

[0058] For example, the stone falls on the rotating member 1212, the rotating member 1212 rotates at high speed to drive the stone to rotate, and then throws the stone, the thrown stone hits the crushing component 122 with high kinetic energy, and is crushed.

[0059] The crushed material falls from the gap between the rotating member 1212 and the crushing component 122 (i.e., the second material falling port 123) to the discharging assembly 13, and then is discharged through the discharging port 131.

[0060] Optionally, the particle size of the crushed material can be controlled by designing the spacing between the rotating member 1212 and the crushing component 122.

[0061] Optionally, the hardness of the crushing component 122 is higher than that of the stone.

[0062] In some embodiments, as shown in Figure 1 and Figure 2 The secondary air supply assembly 3 includes a secondary air supply pipe 31, a connecting pipe 32, and a rotating pipe 33, the top of the rotating pipe 33 is fixedly connected with the rotating member 1212, the bottom of the rotating pipe 33 is rotatably connected with the connecting pipe 32, and the secondary air supply pipe 31 communicates with the rotating pipe 33 through the connecting pipe 32.

[0063] For example, the secondary air supply assembly 3 is arranged in the discharging assembly 13, the top of the rotating pipe 33 is fixedly connected with the bottom of the rotating member 1212, the rotating member 1212 can drive the rotating pipe 33 to rotate when rotating, and the bottom of the rotating pipe 33 is rotatably connected with the top of the connecting pipe 32.

[0064] The bottom of the rotating pipe 33 is sleeved outside the connecting pipe 32, the rotating pipe 33 is connected with the connecting pipe 32 through a bearing, the outer ring of the bearing is connected with the inner circumferential wall of the rotating pipe 33, and the inner ring of the bearing is connected with the outer circumferential wall of the connecting pipe 32. The secondary air supply pipe 31 enters from the bottom of the body 1, and then communicates with the connecting pipe 32. The airflow enters the connecting pipe 32 through the secondary air supply pipe 31, and then enters the rotating pipe 33.

[0065] It can be understood that the bearing adopts a bearing with good sealing performance. Alternatively, the rotating pipe 33 and the connecting pipe 32 can also be connected through other rotating sealing assemblies, and the rotating sealing is a common technology in the field, which will not be described here.

[0066] In some embodiments, as shown in Figure 2 The outer circumferential side of the rotating pipe 33 is provided with a plurality of secondary air supply ports 331, and the plurality of secondary air supply ports 331 are arranged towards the crushing component 122.

[0067] For example, the outer periphery of the rotating pipe 33 is provided with a plurality of secondary air supply ports 331, which are arranged towards the crushing component 122. The air flow entering the rotating pipe 33 through the secondary air supply pipe 31 can be discharged through the secondary air supply ports 331 and then enter the crushing component 122, and the rotating member 1212 can drive the rotating pipe 33 to rotate when rotating, thereby driving the secondary air supply ports 331 to rotate, so that the secondary air supply ports 331 rotate while discharging air flow outward, thereby accelerating the rotation of the air flow to generate a rotating flow.

[0068] In addition, the secondary air supply ports 331 are arranged towards the crushing component 122, and a large amount of dust is generated during the crushing of the stone. Arranging the secondary air supply ports 331 towards the crushing component 122 only helps to capture the dust generated during the crushing process, but also increases the contact area between the dust and the air flow, thereby improving the capture efficiency.

[0069] The dust removal type crusher of the embodiment of the present application is provided with the primary air supply assembly 2 and the secondary air supply assembly 3 in the body 1, and the primary air supply assembly 2 is arranged below the secondary air supply assembly 3. The lower rotating flow generated by the primary air supply assembly 2 and the upper rotating flow generated by the secondary air supply assembly 3 are complementary, and the two rotating flows jointly act on different heights to form a three-dimensional dust removal network, thereby greatly enhancing the overall dust control capability of the system.

[0070] Optionally, the outer periphery of the spiral pipe 213 is also provided with a protective shell, thereby protecting the spiral pipe 213. The cross section of the spiral pipe 213 is not a complete circle, and the inner periphery of the spiral pipe 213 is a plane, so as to better fit the discharge shell.

[0071] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0072] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0073] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "unfixed", and the like are to be construed in a broad sense, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection, or communication with each other; can be direct connection, or indirect connection via intermediate medium; can be internal communication of two elements, or interaction between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0074] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0075] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0076] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and the changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A dust-removing type crusher characterized by comprising: The utility model relates to a kind of material crushing device, including: Main body, the main body includes sequentially arranged feeding assembly, crushing assembly and discharging assembly, the feeding assembly is equipped with feeding port, the crushing assembly is used to crush material, the discharging assembly is equipped with discharge port, and the discharging assembly includes discharge shell; Primary air supply assembly, the primary air supply assembly includes primary air supply pipe, the primary air supply pipe is spiral and surrounds the outer circumferential side of the discharge shell, the discharge shell is equipped with air supply port, the primary air supply pipe is equipped with sub-pipe, the inlet end of the sub-pipe is arranged in the primary air supply pipe, the outlet end of the sub-pipe is communicated with the air supply port, and the air supply port is inclined upwardly in air outlet direction; Secondary air supply assembly, the secondary air supply assembly is arranged higher than the primary air supply assembly; Shell, the shell is arranged on the outer circumferential side of the feeding assembly, the top of the shell is sealingly connected with the feeding assembly, the bottom of the shell is sealingly connected with the crushing assembly, and the shell is equipped with air outlet port; The feeding assembly includes inner shell, the feeding port is arranged on the inner shell, the bottom of the inner shell is in the shape of inverted cone, and the bottom of the inner shell is equipped with first material drop port; The crushing assembly includes rotating part, the rotating part is arranged below the first material drop port and is arranged with interval from the first material drop port, and the rotating part can rotate relative to the inner shell; The rotating part includes driving part and rotating part, the driving part and the rotating part are connected, and the driving part is used to drive the rotating part to rotate around its own axis; The crushing assembly further includes crushing part, the rotating part is rotatably arranged in the crushing part, the crushing part is arranged on the outer circumferential side of the rotating part, the crushing part is arranged with interval from the rotating part to form second material drop port, and the second material drop port is communicated with the discharge port; The secondary air supply assembly includes secondary air supply pipe, connecting pipe and rotating pipe, the top of the rotating pipe is fixedly connected with the rotating part, the bottom of the rotating pipe is rotatably connected with the connecting pipe, and the secondary air supply pipe is communicated with the rotating pipe through the connecting pipe; The outer circumferential side of the rotating pipe is equipped with a plurality of secondary air supply ports, and a plurality of secondary air supply ports are arranged towards the crushing part.

2. The dedusting crusher according to claim 1, characterized in that The air supply port is a plurality of, and a plurality of air supply ports are sequentially and intervally arranged along the extension direction of the primary air supply pipe. The sub-pipe is equipped with a plurality of, and a plurality of sub-pipes correspond to a plurality of air supply ports one by one.

3. The dedusting crusher according to claim 2, characterized in that The cross section of the inlet end of the sub-pipe is perpendicular to the center line of the primary air supply pipe.

4. The dedusting crusher according to claim 3, characterized in that The vector of air outlet direction of the air supply port is A, the vector of flow direction of air flow of the primary air supply pipe is B, the included angle of A and B is α, and α is 30 degrees-60 degrees.

5. The dedusting crusher according to claim 4, characterized in that The included angle of A and the center line of the main body is 30 degrees-45 degrees.

Citation Information

Patent Citations

  • Impact crusher capable of adjusting aggregate fineness modulus

    CN102764686A

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    CN203610191U