Quicklime crushing device

Abstract

A quick lime crushing device comprises a supporting frame body and a crusher arranged on the supporting frame body, the crusher comprises a shell, an upper crushing cavity and a lower crushing cavity, the upper crushing cavity and the lower crushing cavity are arranged in the shell and communicated with each other, a quick lime blocky material inlet is formed in the top of the shell, and a crushed quick lime outlet is formed in the bottom of the shell; the blocky quick lime inlet is communicated with the upper crushing cavity, the crushed quick lime outlet is connected to the bottom of the lower crushing cavity, and the upper crushing cavity and the lower crushing cavity are each provided with a ring hammer assembly. The upper sieve plate has the advantages that the sieve plate with a plurality of rectangular notches is formed by the plurality of transverse battens, the pair of vertical battens and the group of reinforced connecting battens, so that quick lime blocks can be primarily crushed conveniently, and blockage is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of lime treatment equipment, and particularly relates to a quicklime crushing device. Background Art

[0002] Hammer crushers are commonly used in the field of quicklime crushing, and such hammer crushers are all provided with sieve plates at the bottom. This sieve plate structure can ensure the particle size of the discharged material. However, when a double-stage crusher processes quicklime blocks, the particle sizes of the quicklime blocks are relatively large during primary crushing. When the sieve holes of the primary sieve plate are relatively small, the primary crushed material is likely to be blocked on the primary sieve plate after primary crushing, and the crushed quicklime blocks accumulate at the primary sieve plate, increasing the wear of the hammers. Therefore, it is necessary to improve the structure of the primary sieve plate to reduce the accumulation. During secondary crushing, high manganese alloy steel is often used for the secondary sieve plate, but problems such as cracks and chipping are likely to occur during the use of high manganese alloy steel. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quicklime crushing device for the above-mentioned defects.

[0004] The utility model includes a support frame body and a crusher arranged thereon. The crusher includes a housing and an upper crushing cavity and a lower crushing cavity arranged inside and communicating with each other. A quicklime block material inlet is arranged at the top of the housing, and a quicklime crushed material outlet is arranged at the bottom of the housing;

[0005] The quicklime block material inlet is communicated with the upper crushing cavity, the quicklime crushed material outlet is connected to the bottom of the lower crushing cavity, and ring hammer assemblies are arranged in both the upper crushing cavity and the lower crushing cavity;

[0006] An upper sieve plate is arranged at the connection between the upper crushing cavity and the lower crushing cavity, and a lower sieve plate is arranged at the connection between the lower crushing cavity and the quicklime crushed material outlet. The upper sieve plate and the lower sieve plate are fixed on the sieve plate fixing seats of the upper crushing cavity and the lower crushing cavity through the installation screw holes and bolt assemblies on their plate bodies;

[0007] The upper sieve plate is of a rectangular plate structure, which includes a plurality of horizontally arranged strip plates integrally formed and a pair of vertically arranged strip plates at both ends thereof. A group of reinforcing connection strip plates are arranged at intervals at the bottom of the plurality of horizontally arranged strip plates, and the reinforcing connection strip plates are arranged parallel to the vertically arranged strip plates;

[0008] The lower sieve plate is of an arc-shaped plate structure, and a plurality of sieve holes are evenly arranged on the lower sieve plate. The lower sieve plate is composed of a surface layer plate a and a bottom layer plate b. The surface layer plate a is made of high manganese alloy steel, and the bottom layer plate b is made of high chromium cast iron hard alloy.

[0009] Preferably, the upper crushing cavity is located obliquely above the lower crushing cavity, and one side of the lower part of the upper crushing cavity is communicated with the other side of the upper part of the lower crushing cavity.

[0010] Preferably, the ring hammer assemblies in the upper and lower crushing chambers are respectively driven to rotate by two driving motors arranged on both sides of the support frame.

[0011] Preferably, high-strength alloy liners are provided on the inner walls of the upper and lower crushing chambers.

[0012] Preferably, through holes are provided on the surface layer plate a and the bottom layer plate b to form the sieve holes.

[0013] Preferably, the length of the reinforcing connecting strip is the same as that of the vertical strip.

[0014] The advantages of the present utility model are as follows: The upper sieve plate forms a sieve plate with multiple rectangular notches through multiple horizontal strips, a pair of vertical strips and a group of reinforcing connecting strips, which is convenient for the primary crushing of quicklime blocks and effectively avoids blockage. The surface layer plate of high manganese alloy steel in the lower sieve plate has strong wear resistance and impact resistance. Compared with other materials, the bottom layer plate of high chromium cast iron carbide has high hardness, bending strength, impact resistance, thermal fatigue toughness, good thermal hardness, low cost and other characteristics. It is arranged under the high manganese alloy steel layer, which reduces the problems such as easy cracking and chipping of the high manganese alloy steel to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the upper sieve plate.

[0017] Figure 3 is a schematic structural diagram of the lower sieve plate.

[0018] Figure 4 is a schematic structural diagram of the surface layer plate a and the bottom layer plate b. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts fall within the scope of protection of the present invention. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, in the description of the present invention, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "connected" are understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] As shown in the drawings, the present invention includes a support frame body 1 and a crusher 2 provided thereon. The crusher 2 includes a housing 3 and an upper crushing chamber 4 and a lower crushing chamber 5 provided therein and communicating with each other. A quicklime lump material inlet 6 is provided at the top of the housing 3, and a quicklime crushed material outlet 7 is provided at the bottom of the housing 3;

[0024] The quicklime lump material inlet 6 is in communication with the upper crushing chamber 4, the quicklime crushed material outlet 7 is connected to the bottom of the lower crushing chamber 5, and ring hammer assemblies are provided in both the upper crushing chamber 4 and the lower crushing chamber 5;

[0025] An upper sieve plate 10 is provided at the connection of the upper crushing chamber 4 and the lower crushing chamber 5, and a lower sieve plate 11 is provided at the connection of the lower crushing chamber 5 and the quicklime crushed material outlet 7. The upper sieve plate 10 and the lower sieve plate 11 are fixed to the sieve plate fixing seats of the upper crushing chamber 4 and the lower crushing chamber 5 through the mounting screw holes and bolt assemblies on their plate bodies;

[0026] The upper sieve plate 10 is of a rectangular plate structure, which includes a plurality of horizontally arranged strip plates 12 integrally formed and a pair of vertically arranged strip plates 13 at both ends thereof. A group of reinforcing connecting strip plates 14 are arranged at intervals at the bottom of the plurality of horizontally arranged strip plates 12, and the reinforcing connecting strip plates 14 are arranged parallel to the vertically arranged strip plates 13. The upper sieve plate can be made of cast high manganese steel, and ZG120Mn7Mo1 or ZG120Mn13Cr2 or ZG100Mn1 is selected, which has excellent wear resistance and impact resistance.

[0027] The lower sieve plate 11 is of an arc-shaped plate structure. A plurality of sieve holes 15 are uniformly arranged on the lower sieve plate 11. The lower sieve plate 11 is composed of a surface layer plate a16 and a bottom layer plate b17. The surface layer plate a16 is made of high manganese alloy steel, and the bottom layer plate b17 is made of high chromium cast iron hard alloy. The diameter of the sieve holes is 5-15 mm.

[0028] In another technical solution, the upper crushing chamber 4 is located obliquely above the lower crushing chamber 5, and one side of the lower part of the upper crushing chamber 4 is communicated with the other side of the upper part of the lower crushing chamber 5.

[0029] In another technical solution, the ring hammer assemblies in the upper crushing chamber 4 and the lower crushing chamber 5 are respectively driven to rotate by two driving motors 8 arranged on both sides of the support frame 1.

[0030] In another technical solution, high-strength alloy liners are provided on the inner walls of the upper crushing chamber 4 and the lower crushing chamber 5.

[0031] In another technical solution, through holes are provided on the surface layer plate a16 and the bottom layer plate b17 to form the sieve holes 15.

[0032] In another technical solution, the length of the reinforcing connecting strip plate 14 is the same as the length of the vertically arranged strip plate 1.

[0033] Working mode: The quicklime lumps obtained after burning limestone are added into the upper crushing chamber 4 of the crusher 2 through the quicklime lump inlet 6. After being initially crushed by the ring hammer assembly in the upper crushing chamber 4, they enter the lower crushing chamber 5 through the upper sieve plate 10. After being crushed again by the ring hammer assembly in the lower crushing chamber 5, the particle size is further reduced, and then they are discharged through the lower sieve plate 11 of the lower crushing chamber 5 and the quicklime crushed material outlet 7, and enter the subsequent process treatment steps. The upper sieve plate forms a sieve plate with multiple rectangular notches through a plurality of horizontally arranged strip plates, a pair of vertically arranged strip plates and a group of reinforcing connecting strip plates, which is convenient for the initial crushing of quicklime lumps and effectively avoids blockage. The surface layer plate of high manganese alloy steel in the lower sieve plate has strong wear resistance and impact resistance. Compared with other materials, the bottom layer plate of high chromium cast iron hard alloy has the characteristics of high hardness, bending strength, impact resistance, thermal fatigue toughness, good thermal hardness and low cost. It is arranged under the high manganese alloy steel layer, which reduces the problems such as easy cracking and chipping of high manganese alloy steel to a certain extent.

[0034] The above embodiments are only for illustrating the technical solutions and features of the present utility model. The purpose is to enable those who are familiar with the technology to implement it better, and it should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model are within the protection scope of the present utility model. Those not described in detail are prior arts.

Claims

1. A quicklime crushing device, comprising a support frame body (1) and a crusher (2) arranged thereon. The crusher (2) includes a housing (3) and an upper crushing chamber (4) and a lower crushing chamber (5) which are arranged inside the housing and communicate with each other. A quicklime lump material inlet (6) is provided at the top of the housing (3), and a quicklime crushed material outlet (7) is provided at the bottom of the housing (3). It is characterized in that, the quicklime lump material inlet (6) communicates with the upper crushing chamber (4), the quicklime crushed material outlet (7) is connected to the bottom of the lower crushing chamber (5), and both the upper crushing chamber (4) and the lower crushing chamber (5) are provided with ring hammer assemblies; an upper sieve plate (10) is provided at the connection between the upper crushing chamber (4) and the lower crushing chamber (5), and a lower sieve plate (11) is provided at the connection between the lower crushing chamber (5) and the quicklime crushed material outlet (7); the upper sieve plate (10) is of a rectangular plate structure, which includes a plurality of transverse strip plates (12) integrally formed and a pair of vertical strip plates (13) located at both ends thereof. A group of reinforcing connection strip plates (14) are arranged at intervals at the bottom of the plurality of transverse strip plates (12), and the reinforcing connection strip plates (14) are arranged parallel to the vertical strip plates (13); the lower sieve plate (11) is of an arc plate mechanism. A plurality of sieve holes (15) are evenly provided on the lower sieve plate (11). The lower sieve plate (11) is composed of a surface layer plate a (16) and a bottom layer plate b (17). The surface layer plate a (16) is made of high manganese alloy steel, and the bottom layer plate b (17) is made of high chromium cast iron hard alloy; 2. The quicklime crushing device according to claim 1, characterized in that, the upper crushing chamber (4) is located obliquely above the lower crushing chamber (5), and one side of the lower part of the upper crushing chamber (4) communicates with the other side of the upper part of the lower crushing chamber (5); 3. A quicklime crushing device according to claim 1, characterized in that, the ring hammer assemblies in the upper crushing chamber (4) and the lower crushing chamber (5) are respectively driven to rotate by two driving motors (8) arranged on both sides of the support frame body (1); 4. The quicklime crushing device according to claim 1, characterized in that, high-strength alloy liners are provided on the inner walls of both the upper crushing chamber (4) and the lower crushing chamber (5); 5. A quicklime crushing device according to claim 1, characterized in that, through holes are formed on the surface layer plate a (16) and the bottom layer plate b (17) to form the sieve holes (15); 6. The quicklime crushing device according to claim 1, characterized in that, the length of the reinforcing connection strip plates (14) is the same as the length of the vertical strip plates (13).

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