A grain crushing device for reducing dust

Abstract

The utility model belongs to the technical field of grain crushing, and specifically is a grain crushing device for reducing dust, comprising a tank body; a first motor is installed on the top of the tank body, an output end of the first motor is connected to a rotating shaft, a plurality of first crushing knives are fixed to the outer surface of the rotating shaft, a plurality of second crushing knives are fixed to the inner wall of the tank body, and the first crushing knives and the second crushing knives are staggered, a dust collecting box is fixed to the side wall of the tank body, a negative pressure pump is equipped on the dust collecting box, an input port of the negative pressure pump is connected to an exhaust pipe, an output port of the negative pressure pump is connected to an exhaust pipe, and a first dust suction hole is opened on the top of the dust collecting box; the utility model can prevent dust generated during the crushing process from overflowing from a feed port, and can also prevent dust from overflowing from a discharge port during the discharge process, thereby avoiding environmental pollution and preventing workers from being harmed.

Description

Technical Field

[0001] The utility model relates to the technical field of grain crushing, in particular to a grain crushing device for reducing dust. Background Art

[0002] Cereals are a general term for cereal plants or grain crops, mainly including rice, wheat, corn, millet, sorghum and other cereal crops. Cereal crushing is one of the important links in cereal processing, which can improve the digestion and absorption rate of cereals, facilitate consumption, make various foods, increase taste and nutritional value, etc.

[0003] A Chinese patent with publication number CN116899691A discloses a grain crushing device, which includes a cylinder, a hopper installed above the cylinder, a crushing assembly arranged inside the cylinder, and a support leg installed below the cylinder, the crushing assembly includes a first crushing piece, a second crushing piece, a third crushing piece, a first drive assembly, a second drive assembly and a transmission assembly; the present invention can meet the requirements of different grain crushing particle sizes through the coordinated operation of the first crushing piece, the second crushing piece and the third crushing piece, and also improves the crushing efficiency.

[0004] There are some problems when using the above-mentioned grain crushing device. Since a large amount of dust will be generated during the grain crushing process, there is no mechanism for handling dust in the prior art, which causes the dust to easily overflow from the feed port. After the crushing is completed, the dust is also easy to overflow from the discharge port during discharge, causing the working environment to be polluted, which can easily cause respiratory infections to the workers and endanger their health. Therefore, in view of the above problems, a grain crushing device that reduces dust is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a grain crushing device for reducing dust.

[0006] The technical solution adopted by the utility model to solve its technical problem is: the grain crushing device for reducing dust described in the utility model comprises a tank body; a first motor is installed on the top of the tank body, the output end of the first motor is connected to a rotating shaft, a plurality of first crushing knives are fixed on the outer surface of the rotating shaft, a plurality of second crushing knives are fixed on the inner wall of the tank body, and the first crushing knives and the second crushing knives are staggered, a dust collecting box is fixedly connected to the side wall of the tank body, the dust collecting box is equipped with a negative pressure pump, the input port of the negative pressure pump is connected to an exhaust pipe, and the other end of the exhaust pipe is arranged in the dust collecting box, the output port of the negative pressure pump is connected to an exhaust pipe, a first dust suction hole is opened on the top of the dust collecting box, a first dust suction pipe is fixedly connected to the port of the first dust suction hole, and the other end of the first dust suction pipe is arranged through the top of the tank body, and the first A dust suction pipe is equipped with a first one-way valve, a second dust suction hole is opened at the bottom of the dust collecting box, a second dust suction pipe is fixedly connected to the port of the second dust suction hole, and the other end of the second dust suction pipe is arranged in the discharge pipe, and the second dust suction pipe is equipped with a second one-way valve. When crushing grains, after the grain raw materials are put into the tank body, the first motor is started to rotate the first crushing knife, and with the cooperation of the second crushing knife, the material can be crushed, and at the same time, the negative pressure pump is started to extract the gas in the dust collecting box through the exhaust pipe and discharge it through the exhaust pipe, so that the inside of the dust collecting box is in a negative pressure state, and the dust generated in the crushing process is sucked into the dust collecting box through the first dust suction pipe, so that the dust generated in the crushing process can be cleared and collected, and the dust can be prevented from overflowing from the feed port, thereby avoiding environmental pollution and preventing workers from being injured.

[0007] Preferably, an arc-shaped filter screen is fixed in the dust box, and the arc-shaped filter screen is arranged around the opening of the exhaust pipe. A waste outlet is provided on the bottom side of the dust box, and a slide rail is fixedly connected to the port of the waste outlet. A sealing cover plate is slidably mounted on the slide rail. When discharging waste, the sealing cover plate is pushed upward to open the waste outlet, so that the dust collected in the dust box can be regularly discharged through the waste outlet. By arranging the arc-shaped filter screen, blockage of the exhaust pipe outlet can be avoided, thereby ensuring the effect of subsequent dust treatment.

[0008] Preferably, the bottom port of the tank body is connected to a discharge pipe, a valve is provided on the discharge pipe, a material receiving trough is provided below the discharge pipe, three supporting legs are fixedly connected to the bottom end of the tank body, the bottom ends of the three supporting legs are fixedly connected to a base, and a material receiving trough is provided on the base. After the grain crushing is completed, when discharging, the valve is opened to allow the crushed particles to be discharged through the discharge pipe. During the discharging process, the second one-way valve is opened to allow the dust generated during the discharging process to be sucked into the dust collecting box through the second dust suction pipe, thereby preventing dust from overflowing from the discharge port, thereby preventing the respiratory tract of the staff from being infected and preventing the staff from being harmed.

[0009] Preferably, a feed hole is opened on one side of the top of the tank body, a feed hopper is fixedly connected to the end of the feed hole, and the feed hopper is arranged beside the first motor. When using the device, the feed hopper is arranged to facilitate the feeding of grain raw materials into the tank body for crushing.

[0010] Preferably, a support plate is fixedly connected to the bottom side of the circumferential surface of the tank body, a fixed seat is installed on the support plate, a pendulum is hinged in the fixed seat, a spring is fixed between the pendulum and the support plate, a support seat is fixedly connected to the support plate, a second motor is installed on the support seat, a rotating disk is installed at the output end of the second motor, an eccentric rod is fixed on the rotating disk, during the crushing process, the second motor is started to make the rotating disk drive the eccentric rod to rotate, thereby forcing the pendulum to reciprocate and strike the tank body, thereby improving the crushing effect of the grains.

[0011] The utility model is beneficial in that:

[0012] 1. When the utility model is crushing the grains, after the grain raw materials are put into the tank body, the first motor is started to rotate the first crushing knife, and the materials can be crushed with the cooperation of the second crushing knife. At the same time, the negative pressure pump is started to extract the gas in the dust collecting box through the suction pipe and discharge it through the exhaust pipe, so that the inside of the dust collecting box is in a negative pressure state, and the dust generated in the crushing process is sucked into the dust collecting box through the first dust suction pipe, so that the dust generated in the crushing process can be removed and collected, and the dust is prevented from overflowing from the feed port, thereby avoiding environmental pollution and preventing workers from being injured;

[0013] 2. After the grains are crushed, the valve is opened during the discharge process, so that the crushed particles can be discharged through the discharge pipe. During the discharge process, the second one-way valve is opened, so that the dust generated during the discharge process is sucked into the dust collecting box through the second dust suction pipe, thereby preventing the dust from overflowing from the discharge port, thereby preventing the respiratory tract of the staff from being infected and the body of the staff from being harmed;

[0014] 3. During the crushing process, the utility model starts the second motor to make the rotating disk drive the eccentric rod to rotate, thereby forcing the pendulum to strike the tank body reciprocatingly, thereby improving the crushing effect of the grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 It is a schematic diagram of the overall main view three-dimensional structure;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the tank body;

[0018] Figure 3 It is a schematic diagram of the cutaway three-dimensional structure of the dust collecting box;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the knocking component.

[0020] In the figure: 1. tank body; 2. first motor; 3. rotating shaft; 4. first crushing knife; 5. second crushing knife; 6. dust collecting box; 7. negative pressure pump; 8. suction pipe; 9. exhaust pipe; 10. first dust suction pipe; 11. first non-return valve; 12. second dust suction pipe; 13. second non-return valve; 14. arc filter screen; 15. waste outlet; 16. slide rail; 17. sealing cover plate; 18. discharge pipe; 19. valve; 20. receiving trough; 21. supporting leg; 22. base; 23. feed hopper; 24. supporting plate; 25. fixing seat; 26. pendulum; 27. spring; 28. supporting seat; 29. ​​second motor; 30. rotating disk; 31. eccentric rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3As shown, a grain crushing device for reducing dust includes a tank body 1; a first motor 2 is installed on the top of the tank body 1, and the output end of the first motor 2 is connected to a rotating shaft 3, and a plurality of first crushing knives 4 are fixed to the outer surface of the rotating shaft 3, and a plurality of second crushing knives 5 are fixed on the inner wall of the tank body 1, and the first crushing knives 4 and the second crushing knives 5 are arranged alternately, and a dust collecting box 6 is fixed to the side wall of the tank body 1, and a negative pressure pump 7 is installed on the dust collecting box 6, and an air suction pipe 8 is connected to the input port of the negative pressure pump 7, and the air suction pipe 8 The other end of the vacuum pump 8 is arranged in the dust collecting box 6, the output port of the negative pressure pump 7 is connected to the exhaust pipe 9, the top of the dust collecting box 6 is provided with a first dust suction hole, the port of the first dust suction hole is fixedly connected with a first dust suction pipe 10, and the other end of the first dust suction pipe 10 is arranged through the top of the tank body 1, the first dust suction pipe 10 is equipped with a first one-way valve 11, the bottom of the dust collecting box 6 is provided with a second dust suction hole, the port of the second dust suction hole is fixedly connected with a second dust suction pipe 12, and the other end of the second dust suction pipe 12 is arranged on the discharge pipe 18. In the tank 1, a second one-way valve 13 is mounted on the second dust suction pipe 12, an arc filter screen 14 is fixed in the dust box 6, and the arc filter screen 14 is arranged around the opening of the exhaust pipe 8, a waste outlet 15 is provided on the bottom side of the dust box 6, a slide rail 16 is fixed at the end of the waste outlet 15, and a sealing cover plate 17 is slidably mounted on the slide rail 16; when crushing the grains, the grain raw materials are put into the tank body 1 through the feed hopper 23, and then the first motor 2 is started, so that the rotating shaft 3 drives the first crushing knife 4 to rotate, and with the cooperation of the second crushing knife 5, the material can be crushed, and at the same time, the negative pressure pump 7 is started, so that the gas in the dust box 6 is extracted through the exhaust pipe 8 and discharged through the exhaust pipe 9, so that the inside of the dust box 6 is in a negative pressure state, and the dust generated during the crushing process is sucked into the dust box 6 through the first dust suction pipe 10, so that the dust generated during the crushing process can be cleared and collected, and the dust is prevented from overflowing from the feed port, thereby avoiding environmental pollution and preventing the staff from being injured;

[0023] When discharging waste, the sealing cover plate 17 is pushed upward to open the waste outlet 15 , so that the dust collected in the dust box 6 can be discharged through the waste outlet 15 regularly.

[0024] See also Figure 2As shown, a feed hole is provided on one side of the top of the tank body 1, a feed hopper 23 is fixedly connected to the port of the feed hole, and the feed hopper 23 is arranged beside the first motor 2, a discharge pipe 18 is connected to the bottom port of the tank body 1, a valve 19 is arranged on the discharge pipe 18, a receiving trough 20 is arranged below the discharge pipe 18, three supporting legs 21 are fixedly connected to the bottom end of the tank body 1, a base 22 is fixedly connected to the bottom ends of the three supporting legs 21, and a receiving trough 20 is arranged on the base 22; after the grain is crushed, when discharging, the valve 19 is opened to discharge the crushed particles through the discharge pipe 18 and fall into the receiving trough 20, thereby realizing the collection of the crushed particles, and during the discharging process, the second one-way valve 13 is opened to allow the dust generated during the discharging process to be sucked into the dust collecting box 6 through the second dust suction pipe 12, thereby preventing the dust from overflowing from the discharge port, thereby preventing the respiratory tract of the staff from being infected and preventing the staff from being injured.

[0025] See also Figure 4 As shown, a support plate 24 is fixedly connected to the bottom side of the circumferential surface of the tank body 1, a fixing seat 25 is installed on the support plate 24, a pendulum 26 is hinged in the fixing seat 25, a spring 27 is fixedly connected between the pendulum 26 and the support plate 24, a support seat 28 is fixedly connected to the support plate 24, a second motor 29 is installed on the support seat 28, a rotating disk 30 is installed at the output end of the second motor 29, and an eccentric rod 31 is fixed on the rotating disk 30; during the crushing process, the second motor 29 is started, so that the rotating disk 30 drives the eccentric rod 31 to rotate, thereby forcing the pendulum 26 to reciprocate and strike the tank body 1, thereby improving the crushing effect of the grains.

[0026] Working principle: There are some problems in the use of the above-mentioned grain crushing device. Since a large amount of dust will be generated during the grain crushing process, there is no mechanism for handling dust in the prior art, which makes it easy for dust to overflow from the feed port. After the crushing is completed, when discharging, the dust is also easy to overflow from the discharge port, causing the working environment to be polluted, which is easy to cause respiratory infection to the staff and endanger the health of the staff. Therefore, in view of the above problems, a grain crushing device with reduced dust is proposed; when crushing the grain, the grain raw material is put into the tank body 1 through the feed hopper 23, Then, the first motor 2 is started, so that the rotating shaft 3 drives the first crushing knife 4 to rotate, and the material can be crushed with the cooperation of the second crushing knife 5. At the same time, the negative pressure pump 7 is started, so that the gas in the dust box 6 is extracted through the suction pipe 8 and discharged through the exhaust pipe 9, so that the inside of the dust box 6 is in a negative pressure state, and the dust generated during the crushing process is sucked into the dust box 6 through the first dust suction pipe 10, so that the dust generated during the crushing process can be removed and collected, and the dust is prevented from overflowing from the feed port, thereby avoiding environmental pollution and preventing workers from being injured;

[0027] After the grains are crushed, when discharging, the valve 19 is opened to discharge the crushed particles through the discharge pipe 18 and drop into the receiving trough 20, thereby realizing the collection of the crushed particles. During the discharging process, the second one-way valve 13 is opened to allow the dust generated during the discharging process to be sucked into the dust collecting box 6 through the second dust suction pipe 12, thereby preventing the dust from overflowing from the discharge port, thereby preventing the respiratory tract of the staff from being infected and the body of the staff from being harmed;

[0028] During the crushing process, the second motor 29 is started to make the rotating disk 30 drive the eccentric rod 31 to rotate, thereby forcing the pendulum 26 to strike the tank body 1 reciprocatingly, thereby improving the crushing effect of the grains.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] 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, and 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, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A grain crushing device for reducing dust, characterized in that: The invention comprises a tank body (1); a first motor (2) is installed on the top of the tank body (1); the output end of the first motor (2) is connected to a rotating shaft (3); a plurality of first crushing knives (4) are fixed to the outer surface of the rotating shaft (3); a plurality of second crushing knives (5) are fixed to the inner wall of the tank body (1); the first crushing knives (4) and the second crushing knives (5) are arranged alternately; a dust collecting box (6) is fixed to the side wall of the tank body (1); a negative pressure pump (7) is installed on the dust collecting box (6); an inlet of the negative pressure pump (7) is connected to an exhaust pipe (8); and the other end of the exhaust pipe (8) is arranged on the dust collecting box (6). The output port of the negative pressure pump (7) is connected to an exhaust pipe (9), a first dust suction hole is provided at the top of the dust collecting box (6), a first dust suction pipe (10) is fixedly connected to the end of the first dust suction hole, and the other end of the first dust suction pipe (10) is arranged through the top of the tank body (1), a first one-way valve (11) is installed on the first dust suction pipe (10), a second dust suction hole is provided at the bottom of the dust collecting box (6), a second dust suction pipe (12) is fixedly connected to the end of the second dust suction hole, and the other end of the second dust suction pipe (12) is arranged in the discharge pipe (18), and a second one-way valve (13) is installed on the second dust suction pipe (12).

2. A grain crushing device for reducing dust according to claim 1, characterized in that: An arc-shaped filter screen plate (14) is fixed in the dust box (6), and the arc-shaped filter screen plate (14) is arranged around the opening of the exhaust pipe (8). A waste discharge port (15) is provided on the bottom side of the dust box (6), and a slide rail (16) is fixedly connected to the end of the waste discharge port (15), and a sealing cover plate (17) is slidably mounted on the slide rail (16).

3. A grain crushing device for reducing dust according to claim 1, characterized in that: The bottom port of the tank body (1) is connected to a discharge pipe (18), a valve (19) is provided on the discharge pipe (18), a material receiving trough (20) is provided below the discharge pipe (18), three supporting legs (21) are fixedly connected to the bottom end of the tank body (1), a base (22) is fixedly connected to the bottom ends of the three supporting legs (21), and a material receiving trough (20) is provided on the base (22).

4. A grain crushing device for reducing dust according to claim 1, characterized in that: A feed hole is provided on one side of the top of the tank body (1), a feed hopper (23) is fixedly connected to the end of the feed hole, and the feed hopper (23) is arranged beside the first motor (2).

5. A grain crushing device for reducing dust according to claim 1, characterized in that: A support plate (24) is fixedly connected to the bottom side of the circumferential surface of the tank body (1), a fixing seat (25) is installed on the support plate (24), a pendulum (26) is hinged inside the fixing seat (25), and a spring (27) is fixedly connected between the pendulum (26) and the support plate (24).

6. A grain crushing device for reducing dust according to claim 5, characterized in that: A support seat (28) is fixedly connected to the support plate (24), a second motor (29) is mounted on the support seat (28), a rotating disk (30) is mounted on the output end of the second motor (29), and an eccentric rod (31) is fixed on the rotating disk (30).

Images