Limestone crusher with uniform crushing effect

Abstract

The utility model discloses a limestone crusher with a good uniform crushing effect, and belongs to the technical field of limestone processing. The limestone crusher with the uniform crushing effect comprises a crushing box used for crushing limestone, a primary crushing assembly is installed in the crushing box, a secondary crushing assembly is installed at the bottom of the crushing box, and the secondary crushing assembly comprises a crushing cylinder installed below the crushing box; and impact plates connected through hydraulic cylinders are installed on the two sides of the crushing barrel correspondingly, a rotating barrel is installed in the crushing barrel, and the impact plates are located on the inner side of the rotating barrel. By arranging the secondary crushing assembly, limestone fragments entering the rotary drum can be crushed by the impact plate, limestone meeting the size requirement can fall down from the bottom, limestone not meeting the size requirement can be continuously crushed by the impact plate, the limestone crushing effect is improved, and limestone crushing is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of limestone processing, and more specifically to a limestone crusher with good uniform crushing effect. Background Art

[0002] Limestone is mainly formed in shallow sea environment. According to the origin, limestone can be divided into granular limestone (carried by flowing water and formed by sedimentation), bio-skeleton limestone and chemical and biochemical limestone. According to the structural structure, it can be subdivided into bamboo leaf limestone, oolitic limestone, leopard skin limestone, massive limestone, etc. The main chemical component of limestone is CaCO3, which is easy to dissolve. Therefore, stone forests and caves are formed in limestone areas, which are called karst terrain. Limestone is the main raw material for burning lime and cement, and is a flux for iron and steel making.

[0003] Limestone needs to be crushed into a certain size before it can be used. The existing limestone crushing device has a low degree of crushing of limestone, and the sizes of the crushed limestone fragments vary greatly, which will cause waste of limestone.

[0004] The existing limestone crushing devices have the above problems. In view of this, we propose a limestone crusher with good crushing uniformity. Utility Model Content

[0005] The utility model aims to provide a limestone crusher with good uniform crushing effect, so as to solve the problem that the existing limestone crusher is not uniform in crushing as mentioned in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A limestone crusher with good uniform crushing effect comprises a crushing box for crushing limestone, a primary crushing assembly is installed inside the crushing box, a secondary crushing assembly is installed at the bottom of the crushing box, the secondary crushing assembly comprises a crushing barrel installed below the crushing box, impact plates connected by hydraulic cylinders are respectively installed on both sides of the crushing barrel, a rotating barrel is installed inside the crushing barrel, the impact plate is located on the inner side of the rotating barrel, a feed port connected to the bottom of the crushing box is opened on the crushing barrel, a discharge port is opened at the bottom of the crushing barrel, and an opening is opened on the rotating barrel, and the opening can partially overlap with the feed port and the discharge port.

[0008] Preferably, a plurality of crushing cones are respectively installed on the opposite sides of the two impact plates.

[0009] Preferably, the primary crushing assembly includes a feed hopper installed on the top of the crushing box, two rotating shafts are installed inside the crushing box, mounting tubes are installed on the rotating shafts, multiple blades for crushing limestone are installed on the mounting tubes, several crushing parts are provided at the edges of the blades, the crushing parts on the two rotating shafts are staggered, and the crushing parts on the blades are arranged facing each other.

[0010] Preferably, a replaceable crushing plate is installed on the crushing part.

[0011] Preferably, a guide plate is connected to the bottom of the crushing box, and the bottom end of the guide plate is connected to the crushing barrel.

[0012] Preferably, a baffle plate is installed on the top of the feed hopper, and a reset component is provided between the feed hopper and the baffle plate.

[0013] Preferably, the reset assembly comprises an arc-shaped sleeve mounted on the feed hopper, the bottom of the baffle is connected with an arc-shaped rod, the arc-shaped rod is slidably connected to the arc-shaped sleeve, and a spring abutting against the arc-shaped rod is provided inside the arc-shaped sleeve.

[0014] Preferably, a limit plate is provided on the top of the feed hopper to prevent the shielding plate from rotating at an excessively large angle.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The utility model sets a secondary crushing assembly, which consists of a crushing drum, a rotating drum and an impact plate. The limestone fragments entering the rotating drum will be crushed by the impact plate, and the limestone that meets the size requirements will fall from the bottom, and the limestone that does not meet the size requirements will continue to be crushed by the impact plate, thereby improving the crushing effect of the limestone and making the limestone crushed more evenly.

[0017] 2. The utility model sets a primary crushing assembly, which consists of a crushing box, a rotating shaft, a blade and a crushing part. The two rotating shafts rotate towards each other, and the limestone entering the crushing box will be crushed by the blade. The crushed limestone then enters the crushing cylinder, thereby preventing the limestone fragments in the crushing cylinder from being too large in size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the left side of the overall structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 For the utility model Figure 3 The enlarged view of point B in the middle;

[0022] Figure 5 For the utility model Figure 3 Enlarged view of point C in the middle;

[0023] Explanation of the numbers in the figure: 1. Crushing box; 2. Crushing cylinder; 3. Impact plate; 4. Rotating cylinder; 5. Feed inlet; 6. Discharge inlet; 7. Opening; 8. Crushing cone; 9. Feed hopper; 10. Rotating shaft; 11. Mounting pipe; 12. Blade; 13. Crushing part; 14. Crushing plate; 15. Guide plate; 16. Shielding plate; 17. Arc sleeve; 18. Arc rod; 19. Spring; 20. Limit plate. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] See also Figure 1-5 ,The utility model provides a technical solution:

[0028] A limestone crusher with good uniform crushing effect comprises a crushing box 1 for crushing limestone, a primary crushing assembly is installed inside the crushing box 1, a secondary crushing assembly is installed at the bottom of the crushing box 1, the secondary crushing assembly comprises a crushing barrel 2 installed below the crushing box 1, impact plates 3 connected by hydraulic cylinders are installed on both sides of the crushing barrel 2, a rotating barrel 4 is installed inside the crushing barrel 2, the impact plate 3 is located on the inner side of the rotating barrel 4, a feed port 5 connected to the bottom of the crushing box 1 is opened on the crushing barrel 2, a discharge port 6 is opened at the bottom of the crushing barrel 2, and an opening 7 is opened on the rotating barrel 4, and the opening 7 can partially overlap with the feed port 5 and the discharge port 6.

[0029] The utility model provides a crushing box 1, and the primary crushing assembly inside the crushing box 1 can perform initial crushing on the limestone raw material. The crushing drum 2 is located below the crushing box 1. The limestone after initial crushing will enter the rotating drum 4 inside the crushing drum 2 through the feeding port 5 at the top and the opening 7 on the rotating drum. The impact plates 3 on both sides of the crushing drum 2 can crush the limestone inside the rotating drum 4 again. When the opening 7 coincides with the discharge port 6, the crushed limestone can be discharged from the discharge port 6. Since the rotating drum 4 can rotate, the overlapping area between the rotating drum 4 and the discharge port 6 can be adjusted by rotation, and can be set according to the required crushing degree of the limestone, so that the limestone is crushed more evenly.

[0030] Specifically, a plurality of crushing cones 8 are respectively installed on the opposite sides of the two impact plates 3. By providing the crushing cones 8, the crushing cones 8 are fixedly connected to the impact plates 3. The crushing cones 8 can increase the pressure of the impact plates 3 on the limestone, thereby facilitating the crushing of the limestone.

[0031] Furthermore, the primary crushing assembly includes a feed hopper 9 installed on the top of the crushing box 1, two rotating shafts 10 are installed inside the crushing box 1, a mounting tube 11 is installed on the rotating shaft 10, a plurality of blades 12 for crushing limestone are installed on the mounting tube 11, a plurality of crushing parts 13 are provided at the edge of the blade 12, the crushing parts 13 on the two rotating shafts 10 are staggered, and the crushing parts 13 on the blade 12 are arranged facing each other; by setting the feed hopper 9, the feed hopper 9 is installed on the top of the crushing box 1, the two rotating shafts 10 rotate towards each other, the mounting tube 11 is fixedly installed on the rotating shaft 10, the blade 12 is fixedly connected to the mounting tube 11, and the crushing part 13 is located at the edge of the blade 12, and the two rotating shafts 10 can facilitate the crushing of limestone raw materials when they rotate.

[0032] It is worth noting that a replaceable crushing plate 14 is installed on the crushing part 13. By setting the crushing plate 14, the crushing plate 14 is located on the crushing part 13 and can be removed from the crushing part 13, so that the crushing part 13 can be prevented from being worn.

[0033] It is worth noting that a guide plate 15 is connected to the bottom of the crushing box 1, and the bottom end of the guide plate 15 is connected to the crushing drum 2; by providing the guide plate 15, the guide plate 15 can conveniently transport the limestone after the initial crushing inside the crushing box 1 to the crushing drum 2 below.

[0034] In addition, a baffle plate 16 is installed on the top of the feed hopper 9, and a reset assembly is provided between the feed hopper 9 and the baffle plate 16; by providing the baffle plate 16, the baffle plate 16 can prevent limestone from bursting out during the crushing process, thereby improving safety performance.

[0035] It must be said that the reset assembly includes an arc sleeve 17 installed on the feed hopper 9, an arc rod 18 is connected to the bottom of the baffle plate 16, the arc rod 18 is slidably connected to the arc sleeve 17, and a spring 19 abutting against the arc rod 18 is provided inside the arc sleeve 17; by setting the arc sleeve 17, the arc sleeve 17 is installed on the feed hopper 9, the arc rod 18 is fixedly connected to the baffle plate 16, and the spring 19 is located inside the arc sleeve 17, which does not affect the delivery of limestone raw materials while shielding the feed hopper 9.

[0036] Furthermore, a limit plate 20 is provided on the top of the feed hopper 9 to prevent the baffle plate 16 from rotating too much. By providing the limit plate 20, the limit plate 20 is located on the top of the feed hopper 9, which can prevent the baffle plate 16 from rotating too much.

[0037] Working principle: First, the limestone raw material is placed on the baffle plate 16. The force on the top of the baffle plate 16 will cause the spring 19 to contract, and a gap for the limestone raw material to pass through will be formed between the two baffle plates 16, and then the limestone raw material will enter between the multiple blades 12 on the two rotating shafts 10. Since the two rotating shafts 10 rotate in opposite directions, the limestone raw material can be crushed, and the crushed limestone raw material will fall into the lower crushing drum 2 through the guide plate. At this time, the opening 7 of the rotating drum 4 is overlapped with the feed port 5, and the limestone will enter the inside of the rotating drum 4 through the feed port 5 and the opening 7, and then the limestone on the inside of the rotating drum 4 is crushed again by the two impact plates 3. At the same time, the rotating drum 4 is rotated so that the opening 7 of the rotating drum 4 faces the discharge port 6. Limestone fragments that reach a certain size will fall through the overlapping area between the opening 7 and the discharge port 6, and the limestone fragments that do not reach this size will continue to be crushed by the impact plate 3, thereby improving the crushing effect of the limestone and making the crushed limestone fragments more uniform.

[0038] 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. A limestone crusher with good uniform crushing effect, a crushing box (1) for crushing limestone, characterized in that: A primary crushing assembly is installed inside the crushing box (1), a secondary crushing assembly is installed at the bottom of the crushing box (1), the secondary crushing assembly comprises a crushing barrel (2) installed below the crushing box (1), impact plates (3) connected by hydraulic cylinders are installed on both sides of the crushing barrel (2), a rotating barrel (4) is installed inside the crushing barrel (2), the impact plate (3) is located on the inner side of the rotating barrel (4), a feed port (5) connected to the bottom of the crushing box (1) is opened on the crushing barrel (2), a discharge port (6) is opened on the bottom of the crushing barrel (2), and an opening (7) is opened on the rotating barrel (4), and the opening (7) can partially overlap with the feed port (5) and the discharge port (6).

2. A limestone crusher with good uniform crushing effect according to claim 1, characterized in that: A plurality of crushing cones (8) are respectively installed on the opposite sides of the two impact plates (3).

3. The limestone crusher with good uniform crushing effect according to claim 1 is characterized in that: The primary crushing assembly comprises a feed hopper (9) mounted on the top of a crushing box (1); two rotating shafts (10) are mounted inside the crushing box (1); a mounting tube (11) is mounted on the rotating shaft (10); a plurality of blades (12) for crushing limestone are mounted on the mounting tube (11); a plurality of crushing portions (13) are arranged at the edges of the blades (12); the crushing portions (13) on the two rotating shafts (10) are staggered, and the crushing portions (13) on the blades (12) are arranged facing each other.

4. A limestone crusher with good uniform crushing effect according to claim 3, characterized in that: A replaceable crushing plate (14) is installed on the crushing part (13).

5. The limestone crusher with good uniform crushing effect according to claim 1 is characterized in that: The bottom of the crushing box (1) is connected to a guide plate (15), and the bottom end of the guide plate (15) is connected to the crushing barrel (2).

6. The limestone crusher with good uniform crushing effect according to claim 3 is characterized in that: A baffle plate (16) is installed on the top of the feed hopper (9), and a reset component is provided between the feed hopper (9) and the baffle plate (16).

7. A limestone crusher with good uniform crushing effect according to claim 6, characterized in that: The reset assembly comprises an arc-shaped sleeve (17) mounted on the feed hopper (9); the bottom of the baffle plate (16) is connected to an arc-shaped rod (18); the arc-shaped rod (18) is slidably connected to the arc-shaped sleeve (17); and a spring (19) is provided inside the arc-shaped sleeve (17) and abuts against the arc-shaped rod (18).

8. A limestone crusher with good uniform crushing effect according to claim 7, characterized in that: A limit plate (20) is provided on the top of the feed hopper (9) for preventing the shielding plate (16) from rotating at an excessively large angle.

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