Multi-stage crushing equipment

Abstract

The utility model discloses multi-stage crushing equipment, and relates to the field of crushing equipment, the multi-stage crushing equipment comprises a plurality of crushing bins which are arranged in a step-type step-by-step descending manner from left to right, each crushing bin is provided with a material inlet and outlet channel which is communicated with each other, and a screen for dividing the material inlet and outlet channel is arranged in each crushing bin; according to the multi-stage crushing equipment, the multiple crushing bins distributed in a stepped mode are arranged, when the requirement for the crushing fineness of materials is high, the materials can be automatically crushed multiple times only by feeding the materials at the feeding end of the equipment at a time, and multi-stage crushing work of the materials with the high crushing fineness requirement is completed through cooperation of multiple traditional equipment; and in the process, frequent and repeated manual feeding is not needed, the labor cost is greatly saved, and operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment, and in particular to a multi-stage crushing equipment. Background Technology

[0002] A crushing shaft is located in the center of the crushing chamber. Through the high-speed rotation of the crushing shaft, the crushing blades on its outer side continuously impact the material, thereby crushing the material. Subsequently, the crushed material is finely sieved through the screen built into the crushing chamber, thus completing the entire sieving process.

[0003] For materials requiring relatively low fineness, simply selecting a pulverizing device with the appropriate fineness standard is sufficient. However, when dealing with materials requiring higher fineness, it's not common practice to directly feed the raw material into the finest pulverizer. A more common approach is to process the material sequentially through multiple pulverizers with progressively increasing fineness. While this method ensures fine pulverization, it increases the number of steps required, necessitating frequent feeding of material into the pulverizer inlets, making the process cumbersome. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a multi-stage crushing device that can achieve multi-stage crushing without frequent feeding.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A multi-stage crushing device includes multiple crushing chambers arranged in a stepped manner from left to right, each crushing chamber having interconnected inlet and outlet channels.

[0007] Each of the aforementioned crushing chambers is equipped with a screen that divides the inlet and outlet channels. Crushing rollers are rotatably connected above the screens in each crushing chamber, and multiple crushing rollers are driven to rotate by the same power unit.

[0008] Preferably, the screen divides the inner cavity of the crushing chamber into a crushing chamber and a discharge chamber arranged vertically, with the inlet and outlet respectively located on the crushing chamber and the discharge chamber, and the crushing roller located inside the crushing chamber.

[0009] Preferably, all of the aforementioned crushing chambers are fixed on a support frame.

[0010] Preferably, the crushing chamber consists of a chamber cover and a chamber body arranged vertically. The screen is semi-circular and fixed to the inner wall of the upper opening of the chamber body. The chamber body is fixed to the support frame. The crushing roller is rotatably installed at the middle position of the opening at the top of the chamber body. The bottom of the chamber body is inclined downward from left to right. The feed inlet is located on the chamber cover, and the discharge outlet is located on the chamber body. Among two adjacent crushing chambers, the discharge outlet of the higher crushing chamber is connected to the feed inlet of the lower crushing chamber.

[0011] Preferably, the diameter of the sieve holes on the sieves decreases sequentially from left to right.

[0012] Preferably, the rotational speed of the plurality of crushing rollers gradually increases from left to right.

[0013] Preferably, the feed inlet of the leftmost of the crushing chambers is located at the center of the chamber cover, and a funnel connected to the feed inlet is fixed in the middle of the top surface of the leftmost chamber cover.

[0014] Preferably, a first pulley is fixed at the same end of two adjacent crushing rollers, and a first belt is connected between the two first pulleys at the same end of two adjacent crushing rollers. A motor is fixed at the right end of the support frame, and a second pulley is fixed at one end of the rightmost crushing roller on the support frame and at the output end of the motor. A second belt is connected between the two second pulleys.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] This invention features multiple grinding chambers arranged in a stepped manner. When the required fineness of the material is high, only one feeding is needed at the inlet of the equipment, and the material can automatically undergo multiple grinding operations. This achieves the multi-stage grinding of materials with high fineness requirements through the cooperation of multiple devices, eliminating the need for frequent manual feeding during the process, greatly saving labor costs and making operation more convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the crushing roller structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the feed inlet structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the screen structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Support frame; 2. Crushing chamber; 201. Chamber cover; 2011. Feed inlet; 202. Chamber body; 2021. Discharge outlet; 3. Screen; 4. Crushing roller; 5. Crushing chamber; 6. Discharge chamber; 7. Funnel; 8. First pulley; 9. First belt; 10. Motor; 11. Second pulley; 12. Second belt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1 , Figure 2 and Figure 4 This embodiment provides a multi-stage crushing device, including a support frame 1. Several crushing chambers 2 are fixed on the support frame 1 from left to right. The crushing chambers 2 are arranged in a stepped manner with gradually decreasing height from left to right. Each crushing chamber 2 consists of a chamber cover 201 and a chamber body 202 arranged vertically. The chamber cover 201 is fixed to the top of the chamber body 202 by bolts. The screen 3 is semi-circular and fixed to the inner wall of the upper opening of the chamber body 202. The chamber body 202 is fixed to the support frame 1. The screen 3 divides the inner cavity of the crushing chamber 2 into a crushing chamber 5 and a material discharge chamber 6 arranged vertically.

[0024] During the crushing operation, the bin cover 201 closes the bin body 202, and the material is put into the crushing chamber 5. After being crushed in the crushing chamber 5, the finely crushed material passes through the screen 3 and reaches the discharge chamber 6.

[0025] Please see 1 and Figure 4 The bottom of the compartment 202 is sloping downwards from left to right;

[0026] Please see Figure 2 , Figure 3 and Figure 4 The feed inlet 2011 is located on the bin cover 201, and the discharge outlet 2021 is located on the bin body 202. Among two adjacent crushing bins 2, the discharge outlet 2021 of the crushing bin 2 with the higher height is connected to the feed inlet 2011 of the crushing bin 2 with the lower height.

[0027] The material entering the material discharge chamber 6 slides down the inclined bottom inner wall of the chamber 202 to the discharge port 2021, and then enters the next level of crushing chamber 5 from the inlet 2011 of the adjacent lower crushing chamber 2. The crushing work is carried out step by step. After the crushing is completed in the last crushing chamber 5, the material is discharged from the discharge port 2021 of the last crushing chamber 2, which is the rightmost end of the support frame 1.

[0028] Please see Figure 1 , Figure 2 and Figure 4 A crushing roller 4 is rotatably mounted in the middle of the opening at the top of the bin 202 via a bearing. The crushing roller 4 is located inside the crushing chamber 5. Both ends of the crushing roller 4 extend to the outside of both sides of the crushing bin 2. A semi-circular clearance groove is formed on the bin cover 201, nested on the outside of the crushing roller 4. The diameter of the screen holes of several screens 3 on the support frame 1 decreases sequentially from left to right, and the rotation speed of several crushing rollers 4 gradually increases from left to right.

[0029] Material is fed into the crushing chamber 5 and the crushing roller 4 is driven to rotate at a high speed to crush the material. The diameter of the screen holes of multiple screens 3 decreases step by step to ensure that the material can be screened step by step and finally crushed into the required fineness.

[0030] Please see Figure 1 and Figure 2 The feed inlet 2011 of the leftmost crushing chamber 2 on the support frame 1 is located at the center of the chamber cover 201. A funnel 7 connected to the feed inlet 2011 is fixed in the middle of the top surface of the leftmost chamber cover 201 on the support frame 1. When the material is first fed, the material needs to be fed from the feed inlet 2011 of the top crushing chamber 2. The funnel 7 can prevent the material from overflowing and ensure that the material will not spill.

[0031] Please see Figure 1 and Figure 2 Two adjacent crushing rollers 4 are each fixed with a first pulley 8 at the same end. The two first pulleys 8 at the same end of two adjacent crushing rollers 4 are connected by a first belt 9. A motor 10 is fixed at the right end of the support frame 1. A second pulley 11 is fixed at one end of the rightmost crushing roller 4 on the support frame 1 and at the output end of the motor 10. A second belt 12 is connected between the two second pulleys 11. In addition to the motor 10, the power unit can also be a diesel engine or a pneumatic motor.

[0032] When driving multiple crushing rollers 4 to work, the drive motor 10 first rotates, which drives the rightmost crushing roller 4 to rotate. Then, it drives multiple crushing rollers 4 to rotate simultaneously in stages. According to the change of the diameter of the pulley, that is, the diameter of the first pulley 8 on the multiple crushing rollers 4 from left to right is gradually reduced. This makes the leftmost crushing roller 4 have the lowest speed and the rightmost crushing roller 4 have the highest speed when the motor 10 is working, so as to match the effect of the crushing fineness increasing from left to right.

[0033] This invention, by setting up multiple crushing chambers 2 in a stepped distribution, allows materials requiring high fineness to be automatically crushed multiple times after a single feeding at the inlet of the equipment. This achieves the multi-stage crushing of materials requiring high fineness through the cooperation of multiple devices, eliminating the need for frequent manual feeding and greatly saving labor costs, making operation more convenient.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage crushing device, characterized in that, It includes multiple crushing chambers (2) arranged in a stepped manner from left to right, each crushing chamber (2) having a connected inlet and outlet channel; Each of the crushing chambers (2) is provided with a screen (3) that divides the inlet and outlet channels. A crushing roller (4) is rotatably connected above the screen (3) in the crushing chamber (2). Multiple crushing rollers (4) are driven to rotate by the same power unit.

2. The multi-stage pulverizing equipment according to claim 1, characterized in that, The screen (3) divides the inner cavity of the crushing chamber (2) into a crushing chamber (5) and a discharge chamber (6) arranged vertically. The feed inlet (2011) and the discharge outlet (2021) are respectively arranged on the crushing chamber (5) and the discharge chamber (6), and the crushing roller (4) is located in the crushing chamber (5).

3. The multi-stage pulverizing equipment according to claim 2, characterized in that, Several of the aforementioned crushing chambers (2) are fixed on the support frame (1).

4. The multi-stage pulverizing equipment according to claim 3, characterized in that, The crushing chamber (2) consists of a chamber cover (201) and a chamber body (202) arranged vertically. The screen (3) is semi-circular and fixed to the inner wall of the upper opening of the chamber body (202). The chamber body (202) is fixed to the support frame (1). The crushing roller (4) is rotatably installed at the middle position of the opening at the top of the chamber body (202). The bottom of the chamber body (202) is inclined downward from left to right. The feed inlet (2011) is set on the chamber cover (201), and the discharge outlet (2021) is set on the chamber body (202). Among two adjacent crushing chambers (2), the discharge outlet (2021) of the crushing chamber (2) with the higher height is connected to the feed inlet (2011) of the crushing chamber (2) with the lower height.

5. The multi-stage pulverizing equipment according to claim 1, characterized in that, The diameters of the sieve holes on the sieves (3) decrease sequentially from left to right.

6. The multi-stage pulverizing equipment according to claim 4, characterized in that, The rotational speed of the several crushing rollers (4) gradually increases from left to right.

7. The multi-stage pulverizing equipment according to claim 2, characterized in that, The feed inlet (2011) of the leftmost crushing chamber (2) is located at the center of the chamber cover (201), and a funnel (7) connecting the feed inlet (2011) is fixed in the middle of the top surface of the leftmost chamber cover (201).

8. The multi-stage pulverizing equipment according to claim 6, characterized in that, Two adjacent crushing rollers (4) are each fixed with a first pulley (8) at the same end. The two first pulleys (8) at the same end of the two adjacent crushing rollers (4) are connected by a first belt (9). The right end of the support frame (1) is fixed with a motor (10). The rightmost end of the crushing roller (4) on the support frame (1) and the output end of the motor (10) are both fixed with a second pulley (11). The two second pulleys (11) are connected by a second belt (12).

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