Crusher based on material spraying of centrifugal fan

Abstract

The utility model relates to the technical field of crushing devices, in particular to a crusher based on material spraying of a centrifugal fan, which is characterized in that the top of a case is provided with a material inlet, one side of the bottom of the case is provided with a material outlet, a crushing component is arranged in the case below the material inlet, and a negative pressure suction component is arranged in the case above the crushing component; a material receiving plate is arranged in the machine box located below the crushing assembly, one end of the material receiving plate inclines downwards and extends to the position above the discharging opening, a dust blowing cover with an opening in the top is fixedly installed at the bottom of the material receiving plate, and dust blowing holes communicated with an inner cavity of the dust blowing cover are evenly distributed in the material receiving plate; after the crushed materials downwards fall onto the material receiving plate, the dust blowing cover and the material receiving plate are driven by the vibration motor to vibrate up and down, so that dust adhered to the materials is efficiently vibrated off, the centrifugal fan is matched to blow air into the dust blowing cover to upwards blow the dust, and the crushed materials are separated from the dust; and the materials carrying dust are prevented from being discharged through the discharge port.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing devices, in particular to a crusher based on centrifugal fan spraying. Background Art

[0002] The crusher will generate a lot of dust during the crushing operation. In order to ensure the air environment at the work site, the crusher will use corresponding dust removal equipment while operating.

[0003] The utility model with application number CN202222694020.6 discloses an ore crusher, wherein a feed port is fixedly connected to the top of the box, a discharge port is fixedly connected to the bottom of the box, a crushing roller is arranged inside the box, a dust removal mechanism is fixedly connected to the left side of the box, the dust removal mechanism comprises a filter box, a mounting plate is arranged inside the filter box, a filter screen is arranged in the middle of the mounting plate, a negative pressure fan is arranged on the left side of the filter box, an exhaust pipe is fixedly connected to the top of the filter box, and rectangular tubes 1 and 2 are fixedly connected inside the box. The ore crusher, by arranging a dust removal mechanism and generating suction by using a negative pressure fan, collects dust generated by processing ore in the crusher, and prevents the spread of dust from affecting the health of operators.

[0004] However, the stone of the above-mentioned crusher is directly discharged from the discharge port after being crushed by the broken roller. Some dust will adhere to the crushed stone. The dust carried on the stone cannot be efficiently removed by negative pressure suction, so that some dust will be discharged from the discharge port together with the stone, and the dust removal is not thorough enough. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a crusher based on centrifugal fan spraying, which can remove dust more thoroughly, so as to solve the problems in the prior art.

[0006] To solve the above technical problems, the technical solution of the utility model is: a crusher based on centrifugal fan spraying, comprising a chassis, a feeding port is provided at the top of the chassis, a feeding port is provided at one side of the bottom of the chassis, a crushing assembly is provided in the chassis below the feeding port, and a negative pressure suction assembly is provided in the chassis above the crushing assembly; a material receiving plate is provided in the chassis below the crushing assembly, one end of the material receiving plate is inclined downward and extends to above the feeding port, a dust hood with a top opening is fixedly installed at the bottom of the material receiving plate, the material receiving plate covers the top of the dust hood, and dust blowing holes connected to the inner cavity of the dust hood are evenly distributed on the material receiving plate, the dust hood is connected to the air inlet pipe, and the air inlet pipe is connected to the air outlet end of the centrifugal fan.

[0007] As a further improvement, a support plate is fixedly installed on the inner wall of the chassis, a vertically extending sliding rod is fixedly installed on the top of the support plate, the material receiving plate is vertically slidably installed on the sliding rod, a stopper is fixedly installed on the upper end of the sliding rod, and a spring is connected between the material receiving plate and the support plate; a vibration motor is installed on the material receiving plate or the dust hood.

[0008] As a further improvement, a slag discharge pipe is fixedly installed at the bottom of the dust blowing hood, and the slag discharge pipe extends downward to the outside of the chassis and is installed with a discharge valve.

[0009] As a further improvement, the crushing assembly includes two crushing rollers arranged in parallel, and two guide plates arranged opposite to each other are fixedly installed in the chassis. The tops of the two guide plates are respectively provided with a first guide slope for guiding the material between the two crushing rollers.

[0010] As a preferred technical solution, the negative pressure suction component includes a dust hood with an opening at the bottom, one end of the dust hood is fixedly mounted on the inner wall of the chassis, and the top of the other end of the dust hood is provided with a second material guide slope for guiding the material to one of the first material guide slopes; the dust hood is connected to the air inlet end of the dust removal box through an air suction pipe, and the air outlet end of the dust removal box is connected to the air inlet end of the centrifugal fan through an air outlet pipe.

[0011] After adopting the above technical solution, the beneficial effects of the utility model are:

[0012] (1) After the crushed material falls down onto the receiving plate, the vibration motor drives the dust hood and the receiving plate to vibrate up and down, thereby efficiently shaking off the dust adhering to the material. The centrifugal fan blows air into the dust hood to blow the dust upward, so that the crushed material and the dust are separated, and the material is prevented from carrying the dust and being discharged through the discharge port;

[0013] (2) The centrifugal fan blows air into the dust hood to blow the dust adhering to the material upwards, while creating a negative pressure in the dust removal box. The dust floating in the chassis is then sucked into the dust removal box through the dust hood, achieving efficient dust removal by blowing from the bottom and sucking from the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of a chassis of an embodiment of the utility model;

[0017] Figure 3 yes Figure 2 A partial enlarged view of .

[0018] In the figure: 1-chassis; 2-feeding port; 3-discharging port; 4-gear box; 5-motor; 6-receiving plate; 7-dust hood; 8-dust blowing pipe; 9-connecting pipe; 10-hose; 11-air inlet pipe; 12-centrifugal fan; 13-support plate; 14-slide bar; 15-block; 16-vibration motor; 17-slag discharge pipe; 18-discharging valve; 19-dust hood; 20-second material guide slope; 21-dust suction pipe; 22-air suction pipe; 23-dust removal box; 24-air outlet pipe; 25-crushing roller; 26-feeding plate; 27-first material guide slope; 28-spring. DETAILED DESCRIPTION

[0019] like Figures 1 to 3 As shown, the crusher based on centrifugal fan spraying includes a chassis 1, a feed inlet 2 is provided on the top of the chassis 1, a discharge port 3 is provided on the right side of the bottom of the chassis 1, and a crushing assembly is provided in the chassis 1 below the feed inlet 2. The crushing assembly includes two crushing rollers 25 arranged in parallel on the left and right, and the crushing rollers 25 extend forward and backward. The ends of the crushing rollers 25 are rotatably mounted on the side wall of the chassis 1 through bearings. A gear box 4 is installed on the front side of the chassis 1, and a motor 5 is installed on the gear box 4. The motor 5 is connected to the two crushing rollers 25 through a gear set. The material is put into the chassis 1 through the feed inlet 2, and the motor 5 drives the two crushing rollers 25 to rotate in opposite directions through the gear set, and the two crushing rollers 25 rotate in opposite directions to squeeze and crush the material.

[0020] like Figure 2 As shown, in order to improve the crushing efficiency of the material, two guide plates 26 arranged opposite to each other on the left and right are fixedly installed on the inner wall of the chassis 1 by bolts, and an arc groove is provided on the inner side of the guide plate 26. The two crushing rollers 25 are respectively arranged in the corresponding arc grooves. The tops of the two guide plates 26 are respectively provided with first guide slopes 27 for guiding the material between the two crushing rollers 25. The two first guide slopes 27 are arranged in an inverted eight shape.

[0021] A receiving plate 6 is provided in the machine box 1 below the crushing assembly, and the right end of the receiving plate 6 is tilted downward and extends above the discharge port 3. After being crushed by the two crushing rollers 25, the material falls downward onto the receiving plate 6, slides to the right along the tilted receiving plate 6, and is finally discharged through the discharge port 3.

[0022] like Figure 3As shown, a dust blower 7 with an opening at the top is fixedly installed at the bottom of the material receiving plate 6 by bolts. The dust blower 7 is located directly below the two crushing rollers 25. The material receiving plate 6 covers the top of the dust blower 7. The material receiving plate 6 is evenly provided with dust blower holes connected to the inner cavity of the dust blower 7. A dust blower pipe 8 is provided on one side of the bottom of the dust blower 7. A connecting pipe 9 is welded on the bottom wall of the chassis 1. The connecting pipe 9 vertically penetrates the bottom wall of the chassis 1. The dust blower pipe 8 is connected to the upper end of the connecting pipe 9 by a hose 10. The lower end of the connecting pipe 9 is connected to the outlet end of the centrifugal fan 12 by an air inlet pipe 11.

[0023] After the crushed material falls downward onto the receiving plate 6, air is blown into the dust hood 7 through the centrifugal fan 12, and then the air flows upward through the dust blowing holes on the receiving plate 6, thereby efficiently blowing the dust adhering to the material upward, separating the crushed material from the dust, and preventing the material from carrying the dust and being discharged through the discharge port 3.

[0024] The four bottom corners of the receiving plate 6 are respectively provided with support plates 13, which are welded to the inner wall of the chassis 1, and a vertically extending slide bar 14 is fixedly installed on the top of the support plate 13. The lower end of the slide bar 14 is provided with an external thread and screwed on the support plate 13, and the receiving plate 6 is vertically slidably installed on the four slide bars 14, and a stopper 15 is integrally formed at the upper end of the slide bar 14. A spring 28 is sleeved on the slide bar 14 between the receiving plate 6 and the support plate 13; a vibration motor 16 is installed at the bottom of the dust cover 7 by bolts.

[0025] After the crushed material falls down onto the receiving plate 6, the vibration motor 16 drives the dust hood 7 and the receiving plate 6 to vibrate up and down, thereby efficiently shaking off the dust adhering to the material, and the centrifugal fan 12 blows air into the dust hood 7 to blow the dust upward, thereby further improving the dust removal efficiency of the crushed material.

[0026] A slag discharge pipe 17 is welded to the bottom of the dust hood 7. The slag discharge pipe 17 extends downward to the outside of the chassis 1 and is installed with a discharge valve 18. After the discharge valve 18 is opened, the fine materials entering the dust hood 7 through the dust blowing holes on the material receiving plate 6 can be discharged.

[0027] like Figure 1 and Figure 2 As shown, a negative pressure suction component is provided in the chassis 1 located above the crushing component. The negative pressure suction component includes a dust hood 19 with an opening at the bottom, the left end of the dust hood 19 is fixedly mounted on the inner wall of the chassis 1 by bolts, and the top of the right end of the dust hood 19 is provided with a second material guide slope 20 above the first material guide slope 27 for guiding the material to the right; the left end of the dust hood 19 is provided with a dust suction pipe 21 extending to the outside of the chassis 1, the dust suction pipe 21 is connected to the air inlet end of the dust removal box 23 through the suction pipe 22, and the air outlet end of the dust removal box 23 is connected to the air inlet end of the centrifugal fan 12 through the air outlet pipe 24.

[0028] A filter assembly is provided in the dust box 23. The centrifugal fan 12 blows air into the dust hood 7 to blow the dust adhered to the material upwards, thereby forming a negative pressure in the dust box 23. The dust floating in the chassis 1 is then sucked into the dust box 23 through the dust hood 19, and efficient dust removal is achieved by blowing from the bottom and sucking from the top.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Crusher based on centrifugal fan spraying, characterized by: The machine comprises a chassis, wherein a material inlet is provided at the top of the chassis, a material outlet is provided at one side of the bottom of the chassis, a crushing assembly is provided in the chassis below the material inlet, and a negative pressure suction assembly is provided in the chassis above the crushing assembly; a material receiving plate is provided in the chassis below the crushing assembly, one end of the material receiving plate is inclined downward and extends to above the material outlet, a dust hood with a top opening is fixedly installed at the bottom of the material receiving plate, the material receiving plate covers the top of the dust hood, dust blowing holes connected to the inner cavity of the dust hood are evenly distributed on the material receiving plate, the dust hood is connected to an air inlet duct, and the air inlet duct is connected to the air outlet end of a centrifugal fan.

2. The crusher based on centrifugal fan spraying as claimed in claim 1, characterized in that: A support plate is fixedly installed on the inner wall of the chassis, a vertically extending slide bar is fixedly installed on the top of the support plate, the receiving plate is vertically slidably installed on the slide bar, a stopper is fixedly installed on the upper end of the slide bar, and a spring is connected between the receiving plate and the support plate; a vibration motor is installed on the receiving plate or the dust hood.

3. The crusher based on centrifugal fan spraying as claimed in claim 1, characterized in that: A slag discharge pipe is fixedly installed at the bottom of the dust blowing hood, and the slag discharge pipe extends downward to the outside of the chassis and is installed with a discharge valve.

4. The crusher based on centrifugal fan spraying as claimed in claim 1, characterized in that: The crushing assembly comprises two crushing rollers arranged in parallel, and two guide plates arranged opposite to each other are fixedly installed in the chassis. The tops of the two guide plates are respectively provided with first guide slopes for guiding materials between the two crushing rollers.

5. The crusher based on centrifugal fan spraying as claimed in claim 4, characterized in that: The negative pressure suction component includes a dust hood with an opening at the bottom, one end of the dust hood is fixedly mounted on the inner wall of the chassis, and the top of the other end of the dust hood is provided with a second material guide slope for guiding the material to one of the first material guide slopes; the dust hood is connected to the air inlet end of the dust removal box through an air suction pipe, and the air outlet end of the dust removal box is connected to the air inlet end of the centrifugal fan through an air outlet pipe.

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