A discharge structure of a counterattack crusher

Abstract

The utility model provides a kind of discharging structure of impact crusher, including discharging mechanism;Discharging mechanism includes discharging assembly and dust treatment component, discharging assembly is set to the bottom end of impact crusher discharge port, and with discharge port intercommunication;Dust treatment component is interconnected with discharging assembly by suction pump and pipeline.This utility model is cooperated between discharging assembly and impact crusher, so that impact crusher is broken to stone, and broken stone is discharged from the mouth of discharge port, and the stone that is discharged falls to the inside of discharging shell, and falls from the surface of multiple dust suction parts along the direction of first inclined surface, and suction pump is powered on during falling, negative pressure is generated in the inside of suction cavity, and dust mixed with stone during falling is sucked into the inside of suction cavity through dust suction hole, to avoid the condition of easily generating dust.

Description

Technical Field

[0001] This utility model relates to the field of crusher feeding technology, specifically to a feeding structure for an impact crusher. Background Technology

[0002] Impact crushers, also known as impact breakers, are mainly used in metallurgy, chemical industry, building materials, hydropower and other industries where material processing often requires relocation. They are especially used for mobile stone processing in highway, railway and hydropower projects. Various configurations can be adopted according to the type of raw material, scale and finished product requirements.

[0003] During the crushing process of stone, the impact crusher, which uses crushing principles such as stone-on-stone and stone-on-iron, is more likely to generate dust compared to other crushers. When the dust is discharged from the discharge port, it is very easy to cause dust pollution. The dust emission into the air will lead to a deterioration of the working environment, and long-term work in a dusty environment can easily lead to occupational diseases. Therefore, a feeding structure for the impact crusher is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a feeding structure for an impact crusher to solve the problem of excessive dust generation during the feeding process of the impact crusher.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a feeding structure for an impact crusher, including a feeding mechanism;

[0006] The feeding mechanism includes a feeding component and a dust treatment component. The feeding component is located at the bottom of the discharge port of the impact crusher and is connected to the discharge port.

[0007] The dust handling unit is connected to the material feeding unit via an air pump and pipes.

[0008] In a preferred embodiment, the feeding assembly includes a feeding shell, which includes a main shell disposed at the bottom of the discharge port of the impact crusher. The top of the main shell is open and communicates with the discharge port of the impact crusher. The bottom wall of the main shell is provided with a first inclined surface that slopes downward to guide the crushed stone, so that the crushed stone can slide down along the direction of the first inclined surface to the outside of the main shell. The upper surface of the first inclined surface is provided with a connecting hole.

[0009] In a preferred embodiment, a discharge port is provided on one side of the main housing to ensure that the stone material sliding down the surface of the first inclined surface can be discharged to the outside of the main housing. A dust-blocking curtain is provided on the top wall of the discharge port. An inclined guide plate with the opposite inclination direction to the first inclined surface is provided on the inner wall of the main housing on the side where the discharge port is provided. Multiple first obstruction rods located above the inclined guide plate are provided between the inner walls of the main housing.

[0010] In a preferred embodiment, the upper surface of the first inclined surface is provided with a plurality of dust-absorbing components, each including a mounting block. The end of the mounting block facing the discharge port is provided with a dust-absorbing hole, which is connected to a connecting hole. The side of the mounting block away from the discharge port is provided with a second inclined surface, the inclination direction of which is consistent with that of the first inclined surface.

[0011] In a preferred embodiment, an air intake chamber is provided on the lower surface of the main housing. The air intake chamber includes a housing shell, an air inlet is provided on the upper surface of the housing shell, the air inlet is connected to a connecting hole, and an air outlet is provided at one end of the housing shell.

[0012] In a preferred embodiment, the dust treatment component includes a first dust treatment element, which includes a first treatment element housing. A first air inlet pipe is provided on one side of the first treatment element housing, which is interconnected with the first treatment element housing. The first air inlet pipe is interconnected with an air outlet pipe through an air pump and a pipeline.

[0013] In a preferred embodiment, a dust removal port is provided on one side of the outer shell of the first processing component, and a dust removal door is provided inside the dust removal port.

[0014] In a preferred embodiment, the top of the first processing component housing is open, and the inner bottom wall is provided with a downward-sloping third inclined surface to guide the dust to move along the direction of the third inclined surface and then be discharged from the dust removal port. Multiple second obstruction rods are provided between the two inner side walls of the first processing component housing, and the second obstruction rods are located above the first air inlet pipe.

[0015] In a preferred embodiment, the dust treatment component includes a second dust treatment element, which includes an upward-facing second treatment element housing. A second air inlet pipe is provided on the side of the second treatment element housing and communicates with the second treatment element housing. The second air inlet pipe is communicated with the air outlet pipe through an air pump and a pipeline.

[0016] In a preferred embodiment, a funnel is provided at the bottom of the second processing component housing, and a horizontal tube communicating with the funnel is provided at the bottom of the funnel. One end of the horizontal tube is closed and the other end is open. A motor is provided at the closed end, and an auger shaft located inside the horizontal tube is provided at the output shaft of the motor. Multiple third obstruction rods located above the second air intake pipe are provided between the two side walls inside the second processing component housing.

[0017] This utility model provides a feeding structure for an impact crusher. By adopting the above solution, the following beneficial effects are achieved:

[0018] 1. This utility model, by setting up an impact crusher, a feeding assembly, an air suction chamber, and an air pump, etc., through the cooperation between the feeding assembly and the impact crusher, allows the impact crusher to crush the stone, and the crushed stone is discharged from the discharge port. The discharged stone falls into the interior of the feeding shell and slides down the surface of multiple dust suction parts along the direction of the first inclined surface. During the sliding process, the air pump is powered on and works to generate negative pressure inside the air suction chamber. The dust mixed with the stone during the sliding process is sucked into the air suction chamber through the dust suction holes, thereby avoiding the situation that dust is easily generated when the stone is discharged from the discharge port.

[0019] 2. By configuring the dust handling component, the airflow carrying dust enters the interior of the dust handling component. On the one hand, when the airflow enters a large space, the dynamic pressure of the airflow is converted into static pressure, which reduces the airflow velocity and weakens its ability to carry dust, allowing the dust particles to settle under the action of gravity. On the other hand, the setting of the obstruction rod allows small dust particles to collide with the obstruction rod under the action of inertia when they continue to flow upward with the airflow, thereby achieving the effect of separating the small dust particles from the airflow and allowing them to fall into the interior of the dust handling component under the action of gravity. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 A schematic diagram of the feeding structure of an impact crusher provided for an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the feeding mechanism in an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Structural sectional view;

[0024] Figure 4 for Figure 3 Another structural diagram from another perspective;

[0025] Figure 5 for Figure 4 A magnified view of a portion of region A in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the first dust treatment component in an embodiment of this utility model;

[0027] Figure 7This is a schematic diagram of the structure of the second dust treatment component in an embodiment of this utility model;

[0028] Figure 8 for Figure 7 Another structural diagram from another perspective;

[0029] Figure 9 for Figure 7 Structural sectional view;

[0030] Figure 10 for Figure 9 Another structural diagram from another perspective;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Impact crusher; 2. Feeding shell; 21. Main shell; 22. Discharge port; 23. Inclined guide plate; 24. First obstruction rod; 25. First inclined surface; 26. Connecting hole; 3. Dust suction component; 31. Mounting block; 32. Second inclined surface; 33. Dust suction hole; 4. Suction chamber; 41. Chamber shell; 42. Air inlet; 5. Air outlet pipe; 6. Dust curtain; 7. Air pump; 8. First dust treatment component; 81. First treatment component shell; 82. First air inlet pipe; 83. Second obstruction rod; 84. Third inclined surface; 85. Dust cleaning port; 86. Dust cleaning door; 9. Second dust treatment component; 91. Second treatment component shell; 92. Third obstruction rod; 93. Second air inlet pipe; 94. Funnel; 95. Horizontal pipe; 96. Screw shaft; 97. Motor. Detailed Implementation

[0033] Example 1:

[0034] like Figures 1-6 As shown, a feeding structure for an impact crusher is characterized by including a feeding mechanism.

[0035] The feeding mechanism includes a feeding component and a dust treatment component. The feeding component is located at the bottom of the discharge port of the impact crusher 1 and is connected to the discharge port.

[0036] like Figures 1-4 As shown, the feeding assembly includes a feeding shell 2, which includes a main shell 21 located at the bottom of the discharge port of the impact crusher 1. The top of the main shell 21 is open and communicates with the discharge port of the impact crusher 1. The bottom wall of the main shell 21 is provided with a first inclined surface 25 that slopes downward to guide the crushed stone, so that the crushed stone can slide down along the direction of the first inclined surface 25 to the outside of the main shell 21. The upper surface of the first inclined surface 25 is provided with a connecting hole 26.

[0037] A discharge port 22 is provided on one side of the main housing 21 to ensure that the stone material sliding down the surface of the first inclined surface 25 can be discharged to the outside of the main housing 21. A dust curtain 6 is provided on the top wall inside the discharge port 22. An inclined guide plate 23 with the opposite inclination direction to the first inclined surface 25 is provided on the inner wall of the main housing 21 on the side where the discharge port 22 is provided. Multiple first obstruction rods 24 located above the inclined guide plate 23 are provided between the inner walls of the main housing 21.

[0038] Based on the above, after the impact crusher 1 crushes the stone, the crushed stone is discharged from the outlet and enters the interior of the main shell 21. During this process, some of the crushed stone directly collides with the first obstruction rod 24 and then falls onto the surface of the dust collection component 3. The remaining crushed stone falls onto the surface of the inclined guide plate 23 and slides down the surface of the inclined guide plate 23 onto the surface of the dust collection component 3. The first obstruction rod 24 and the inclined guide plate 23 mainly play a buffering role to prevent the crushed stone from falling directly and impacting the surface of the dust collection component 3. After the buffering of the above two structures, the speed of the crushed stone during the falling process is slowed down, thereby reducing the impact force of the crushed stone on the surface of the dust collection component 3.

[0039] like Figure 4 and Figure 5 As shown, a plurality of dust-absorbing components 3 are provided on the upper surface of the first inclined surface 25. Each dust-absorbing component 3 includes a mounting block 31. A dust-absorbing hole 33 is provided at the end of the mounting block 31 facing the discharge port 22. The dust-absorbing hole 33 is connected to the connecting hole 26. A second inclined surface 32 is provided on the side of the mounting block 31 away from the discharge port 22. The inclination direction of the second inclined surface 32 is consistent with the direction of the first inclined surface 25.

[0040] Based on the above, the dust suction component 3 achieves the effect of separating the crushed stone and the dust. The setting of the second inclined surface 32 makes the stone separate from the dust suction hole 33 when the crushed stone slides down along the direction of the dust suction component 3. When the air pump 7 is powered on, a negative pressure will be generated at the dust suction hole 33, thereby sucking the dust into it.

[0041] like Figures 3-5 As shown, the lower surface of the main housing 21 is provided with an air intake chamber 4, which includes a cavity shell 41. The upper surface of the cavity shell 41 is provided with an air inlet 42, which is connected to the connecting hole 26. One end of the cavity shell 41 is provided with an air outlet pipe 5.

[0042] Based on the above, the suction chamber 4 serves to connect multiple dust suction holes 33, so that when the suction pump 7 is powered on and generates negative pressure inside the outer shell 41 of the chamber, negative pressure is generated at multiple dust suction holes 33.

[0043] like Figures 1-4 as well as Figure 6As shown, the dust treatment component includes a first dust treatment component 8, which includes a first treatment component housing 81. A first air inlet pipe 82 is provided on one side of the first treatment component housing 81 and communicates with the first treatment component housing 81. The first air inlet pipe 82 is communicated with the air outlet pipe 5 through an air pump 7 and a pipe. The air pump 7 is preferably an OL280A type air pump. A dust removal port 85 is provided on one side of the first treatment component housing 81, and a dust removal door 86 is provided inside the dust removal port 85.

[0044] The top of the first processing component housing 81 is open. The ratio of the cross-sectional area of ​​the pipe connected to the air pump 7 to the internal cross-sectional area of ​​the first processing component housing 81 should be controlled between 1:4 and 1:6. The bottom wall inside is provided with a downward inclined third inclined surface 84 to guide the dust to move along the direction of the third inclined surface 84 and then be discharged from the dust removal port 85. Multiple second obstruction rods 83 are provided between the two side walls inside the first processing component housing 81. The second obstruction rods 83 are located above the first air inlet pipe 82.

[0045] The air introduced into the housing 81 of the first processing component is initially transported by the air pump 7 and pipelines, and its airflow velocity is usually controlled at 12-18 m / s. This velocity ensures that the dust is stably transported with the airflow in the pipeline without clogging or settling. After the airflow enters the housing 81 of the first processing component, the velocity needs to be reduced to below 3 m / s due to the expansion of the internal space following the above cross-sectional ratio.

[0046] Based on the above, the first air inlet pipe 82 is connected to the air outlet pipe 5 through the air pump 7 and the pipe. When the air pump 7 is powered on, the air inside the suction chamber 4 is drawn out through the air outlet pipe 5, thereby generating a negative pressure inside the suction chamber 4. Through the cooperation of the dust suction component 3 and the material discharge shell 2, the dust mixed in the stone is sucked into the suction chamber 4. Under the action of the airflow, the dust is carried into the interior of the first processing component shell 81. At this time, the airflow enters the open environment from the narrow environment, the air pressure is converted into static pressure, the ability to carry dust is weakened, and the dust settles under the action of gravity. The settled dust is temporarily stored inside the first processing component shell 81. Small dust particles continue to flow under the action of the airflow and collide with the second obstruction rod 83, so that the dust is separated from the airflow and settles under the action of gravity.

[0047] The dust is removed from the dust removal port 85 by opening the dust removal door 86.

[0048] The workflow of this embodiment is as follows:

[0049] The crushed stone from the impact crusher 1 falls from the discharge port into the main casing 21.

[0050] Some stones disperse after directly impacting the first obstruction bar 24, while others slide down through the inclined guide plate 23. Both are decelerated and fall onto the second inclined surface 32 of the dust collection component 3, then slide along the first inclined surface 25 toward the discharge port 22.

[0051] When the air pump 7 is started, a negative pressure is formed in the suction chamber 4. Dust enters the suction chamber 4 through the dust suction hole 33 → connecting hole 26 → air inlet 42, and is transported to the first dust treatment component 8 through the air outlet pipe 5 and pipeline.

[0052] After the dust-laden airflow enters the outer shell 81 of the first processing component, due to the expansion of space (the flow velocity decreases from 15m / s to below 3m / s), large dust particles settle under the action of gravity, while small dust particles rise with the airflow, collide with the second obstruction rod 83, separate, and settle on the third inclined surface 84, and are eventually cleaned periodically from the dust removal port 85.

[0053] When the stone is discharged from the discharge port 22, the dust curtain 6 adheres to the surface of the stone to prevent residual dust from overflowing.

[0054] Example 2

[0055] Based on Embodiment 1, the first dust treatment component 8 is replaced with the second dust treatment component 9, and the air pump 7 is connected to the second air inlet pipe 93 and the air outlet pipe 5 through a pipeline.

[0056] like Figures 7-10 As shown, the dust treatment assembly includes a second dust treatment component 9, which includes a second treatment component housing 91 with the opening facing upward. The ratio of the cross-sectional area of ​​the pipe connected to the air pump 7 to the internal cross-sectional area of ​​the second treatment component housing 91 should preferably be controlled between 1:4 and 1:6. A second air inlet pipe 93 is provided on the side of the second treatment component housing 91 and is interconnected with the second treatment component housing 91. The second air inlet pipe 93 is interconnected with the air outlet pipe 5 through the air pump 7 and the pipe.

[0057] The bottom end of the second processing component housing 91 is provided with a funnel 94, and the bottom end of the funnel 94 is provided with a horizontal tube 95 that communicates with the funnel 94. One end of the horizontal tube 95 is closed and the other end is open. The closed end is provided with a motor 97. The output shaft of the motor 97 is provided with an auger shaft 96 located inside the horizontal tube 95. Multiple third obstruction rods 92 located above the second air intake pipe 93 are provided between the two side walls inside the second processing component housing 91.

[0058] The air introduced into the second dust treatment unit 9 is initially transported by the air pump 7 and pipelines, and its airflow velocity is usually controlled at 12-18 m / s. This velocity ensures that the dust is stably transported with the airflow in the pipeline without clogging or settling. After the airflow enters the second dust treatment unit 9, due to the expansion of the internal space following the above cross-sectional ratio, the velocity needs to be reduced to below 3 m / s.

[0059] Based on the above, the dust treatment effect of the second dust treatment component 9 is the same as that of the first embodiment. The technical feature that distinguishes this component from the first dust treatment component 8 is the different way of treating the settled dust. The second dust treatment component 9 drives the auger shaft 96 to rotate through the motor 97, thereby transporting the dust to the outside of the housing 91 of the second treatment component.

[0060] The workflow of this embodiment is as follows:

[0061] The stone feeding and dust adsorption process is the same as in Example 1. The dust-laden airflow enters the outer shell 91 of the second processing unit through the pipeline.

[0062] The dust separated by the airflow deceleration and the collision of the third obstruction rod 92 falls into the funnel 94 and enters the horizontal tube 95 through the funnel.

[0063] Motor 97 drives auger shaft 96 to rotate, pushing the dust in horizontal tube 95 to the open end for discharge. It can be connected to a collection bag or conveyor belt to realize automatic and continuous dust treatment.

[0064] The main dust particle size ranges and proportions generated during the operation of an impact crusher are as follows:

[0065] Coarse particulate dust (50-500μm).

[0066] Source: Larger fragments or small particles that are not completely crushed, generated by the collision and compression of materials during the crushing process.

[0067] Characteristics: Larger particle size, significant gravity effect, easy to settle quickly near equipment, and constitutes the largest proportion of dust (usually accounting for 50%-70% of the total).

[0068] Typical scenarios: Splashing dust generated by the impact of the impact plate and the hammer, or accompanying dust discharged from the outlet.

[0069] Medium particulate dust (10-50μm).

[0070] Source: Fine particles peeled off from the surface of materials during the crushing process, or secondary dust generated by further collision and grinding of coarse particles.

[0071] Characteristics: Medium particle size, with a certain tendency to settle due to gravity, and easily carried and diffused by airflow, accounting for about 20%-30%.

[0072] Typical scenarios: Dust carried out by turbulent airflow inside the crushing chamber, or dust raised by air disturbance during the material's descent.

[0073] Fine particulate dust (≤10μm).

[0074] Source: Friction and grinding during material crushing (especially hard rock crushing), or ultrafine particles formed by the further dispersion of medium particles in airflow.

[0075] Characteristics: Small particle size (as low as 1-2μm), greatly affected by airflow disturbance, slow settling velocity, easy to form suspended dust, accounting for a relatively low proportion (usually 5%-15%), but has a more significant impact on the environment and human health (such as inhalable particulate matter).

[0076] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A feeding structure for an impact crusher, characterized in that: Including the feeding mechanism; The feeding mechanism includes a feeding component and a dust treatment component. The feeding component is located at the bottom of the discharge port of the impact crusher (1) and is connected to the discharge port. The dust handling component is connected to the feeding component via an air pump (7) and pipes.

2. The feeding structure of an impact crusher according to claim 1, characterized in that: The feeding assembly includes a feeding shell (2), which includes a main shell (21) located at the bottom of the discharge port of the impact crusher (1). The top of the main shell (21) is open and communicates with the discharge port of the impact crusher (1). The bottom wall of the main shell (21) is provided with a first inclined surface (25) that is inclined downward, which is used to guide the crushed stone so that the crushed stone can slide down along the direction of the first inclined surface (25) to the outside of the main shell (21). The upper surface of the first inclined surface (25) is provided with a connecting hole (26).

3. The feeding structure of an impact crusher according to claim 2, characterized in that: A discharge port (22) is provided on one side of the main housing (21) to ensure that the stone material sliding down the surface of the first inclined surface (25) can be discharged to the outside of the main housing (21). A dust curtain (6) is provided on the top wall of the discharge port (22). An inclined guide plate (23) with the opposite inclination direction to the first inclined surface (25) is provided on the inner wall of the main housing (21) on the side where the discharge port (22) is provided. Multiple first obstruction rods (24) located above the inclined guide plate (23) are provided between the inner walls of the main housing (21).

4. The feeding structure of an impact crusher according to claim 3, characterized in that: The upper surface of the first inclined surface (25) is provided with a plurality of dust-absorbing components (3). The dust-absorbing component (3) includes a mounting block (31). The end of the mounting block (31) facing the discharge port (22) is provided with a dust-absorbing hole (33). The dust-absorbing hole (33) is connected to the connecting hole (26). The side of the mounting block (31) away from the discharge port (22) is provided with a second inclined surface (32). The inclination direction of the second inclined surface (32) is consistent with the direction of the first inclined surface (25).

5. The feeding structure of an impact crusher according to claim 2, characterized in that: The lower surface of the main housing (21) is provided with an air intake chamber (4), which includes a cavity shell (41). The upper surface of the cavity shell (41) is provided with an air inlet (42), which is connected to the connecting hole (26). One end of the cavity shell (41) is provided with an air outlet pipe (5).

6. The feeding structure of an impact crusher according to claim 1, characterized in that: The dust treatment assembly includes a first dust treatment component (8), which includes a first treatment component housing (81). A first air inlet pipe (82) is provided on one side of the first treatment component housing (81) and communicates with the first treatment component housing (81). The first air inlet pipe (82) is communicated with the air outlet pipe (5) through a vacuum pump (7) and a pipe.

7. The feeding structure of an impact crusher according to claim 6, characterized in that: A dust removal port (85) is provided on one side of the outer casing (81) of the first processing component, and a dust removal door (86) is provided inside the dust removal port (85).

8. The feeding structure of an impact crusher according to claim 7, characterized in that: The top of the first processing component housing (81) is open, and the bottom wall inside is provided with a downward inclined third inclined surface (84) to guide the dust to move along the direction of the third inclined surface (84) and then be discharged from the dust removal port (85). Multiple second obstruction rods (83) are provided between the two side walls inside the first processing component housing (81), and the second obstruction rods (83) are located above the first air inlet pipe (82).

9. The feeding structure of an impact crusher according to claim 1, characterized in that: The dust treatment assembly includes a second dust treatment component (9), which includes a second treatment component housing (91) with the opening facing upward. A second air inlet pipe (93) is provided on the side of the second treatment component housing (91) and communicates with the second treatment component housing (91). The second air inlet pipe (93) is communicated with the air outlet pipe (5) through an air pump (7) and a pipe.

10. The feeding structure of an impact crusher according to claim 9, characterized in that: The bottom end of the second processing component housing (91) is provided with a funnel (94), and the bottom end of the funnel (94) is provided with a horizontal tube (95) that communicates with the funnel (94). One end of the horizontal tube (95) is closed and the other end is open. A motor (97) is provided at the closed end. An auger shaft (96) located inside the horizontal tube (95) is provided at the output shaft of the motor (97). Multiple third obstruction rods (92) located above the second air intake pipe (93) are provided between the two side walls inside the second processing component housing (91).

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