A shredder for shredding slag in the later stages of copper slag smelting furnaces.

Abstract

The present invention relates to a shredder for shredding the late slag of a copper dross smelting furnace, and relates to the technical field of mechanical processing tools. The shredder comprises a chassis assembly and a feeding assembly, the chassis assembly comprises a chassis shell, a shredding assembly, a reducer, a gear box and a motor, the shredding assembly comprises a moving knife assembly and a fixed knife assembly, the minimum distance between the moving knife tip and the corresponding shaft sleeve in the moving knife assembly is 0.6-1.7 mm, the gap between the upper knife tip and the shaft sleeve in the fixed knife assembly is 3-12 mm, and the gap between the lower knife tip and the shaft sleeve is 8-22 mm. The shredder can shred the late slag of a copper dross smelting furnace into a desired size so that the subsequent copper smelting process can proceed smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing tools, in particular to a shredder for shredding late slag of a copper dross smelting furnace. Background Art

[0002] After the copper slag is treated in the slag smelting furnace, it produces copper slag smelting furnace crude lead, copper slag smelting furnace early slag and copper slag smelting furnace late slag. Among them, the copper slag smelting furnace late slag is the copper slag that is left to stand and stratify after being treated in the slag smelting furnace. The copper-containing material has a density between the early slag and the crude lead, and has relatively special physical properties. The blasting machine and jaw crusher used to crush materials in the traditional copper smelting process, if used to crush the copper slag smelting furnace late slag, not only the particle size after crushing cannot meet the needs of subsequent copper smelting. Ordinary metal shredders will also have problems such as sticking to the knife and the sleeve due to the extremely large span of the physical properties of the copper slag smelting furnace late slag, increasing the load of the shredder and causing the machine to get stuck, and the fixed knife, movable knife, sleeve, and chassis are seriously deformed. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a shredder for shredding the late slag of a copper dross smelting furnace. The shredder can shred the late slag of a copper dross smelting furnace into expected sizes so that subsequent copper smelting processes can proceed smoothly.

[0004] In order to achieve the above object, the present invention provides a shredder for shredding the late slag of a copper slag smelting furnace, comprising:

[0005] A chassis assembly, comprising a chassis shell, a shredding assembly, a reducer, a gear box and a motor, wherein the shredding assembly, the reducer, the gear box and the motor are arranged in the chassis shell, the shredding assembly, the reducer, the gear box and the motor are connected through a transmission structure, the shredding assembly and the reducer are connected through spline teeth, and the gear box and the motor are connected through gears and a plum blossom coupling;

[0006] The shredding assembly includes a movable knife assembly and a fixed knife assembly, the movable knife assembly includes a first spindle, a second spindle, a movable knife, a shaft sleeve, and a spindle fixing plate, the first spindle and the second spindle are parallel to each other and are transversely arranged at the same horizontal height, and are fixed to the chassis shell through the spindle fixing plate, a plurality of movable knives parallel to each other are coaxially arranged on the first spindle and the second spindle, the movable knives are evenly arranged along the axial direction of the first spindle and the second spindle, the movable knives on the first spindle and the movable knives on the second spindle are staggered, the first spindle outer sleeve is provided with a shaft sleeve corresponding to the movable knife of the second spindle, the second spindle outer sleeve is provided with a shaft sleeve corresponding to the movable knife of the first spindle, the movable knife includes a movable knife body and a movable knife tip, and the minimum distance between the movable knife tip and the corresponding shaft sleeve is 0.6-1.7mm;

[0007] The fixed knife assembly includes a fixed knife fixing plate and a fixed knife, the fixed knife fixing plate is arranged on both sides of the chassis shell, a plurality of the fixed knives parallel to each other are arranged on the fixed knife fixing plate, the fixed knife and the shaft sleeve are clearance-matched, the clearance accuracy between the fixed knife and the movable knives on both sides is 1-6 wire, the fixed knife includes a fixed knife body, an upper fixed knife tip and a lower fixed knife tip, the clearance between the upper fixed knife tip and the shaft sleeve is 3-12mm, and the clearance between the lower fixed knife tip and the shaft sleeve is 8-22mm; and

[0008] The feed assembly is fixed on the chassis shell, and comprises a feed port for materials to enter and a material cavity for materials to fall onto the shredding assembly. The material cavity is connected with the shredding assembly through a connecting port.

[0009] The inventors found in the research process that the copper slag smelting furnace late slag is treated by the slag smelting furnace as copper slag and then left to stand and stratify. The copper-containing material is generated by the density between the early slag and crude lead. The late slag contains a high content of metallic lead and copper. Due to the influence of factors such as the fluctuation of the raw material content and process control during the copper smelting process, the chemical composition of the copper slag smelting furnace late slag is unstable and fluctuates greatly. In the same batch of copper slag smelting furnace late slag, some may contain up to 90% lead, and some may contain up to 80% copper. Therefore, the copper slag smelting furnace late slag is endowed with relatively special physical properties, that is, in the same batch of copper slag smelting furnace late slag, some of the late slags have strong toughness, some of the late slags have high hardness, and some of the late slags have both strong toughness and high hardness. In the same batch of late-stage slag from the slag smelting furnace, the hardness of some of the late-stage slag can reach up to Mohs hardness 7, and the ductility of some of the late-stage slag can reach the same as that of crude lead, making it impossible for the shredder in the prior art to simultaneously process the late-stage slag from the copper slag smelting furnace with a wide range of physical properties.

[0010] However, due to the large gap between the blade teeth of the shredder in the prior art, when facing the late slag of the copper slag smelting furnace with the above-mentioned characteristics, more materials are stuck or stuck between the blade teeth, and the materials adhered between the blade teeth cannot be cleaned from the outside, and can only fall off by the materials squeezing each other, thereby increasing the load of the shredder; at the same time, due to the good ductility of the late slag of the copper slag smelting furnace, the distance between the blade tip and the shaft sleeve of the shredder is slightly large, the late slag cannot be sheared, and the late slag is adhered to both ends of the blade tip and is stuck by the blade tip and rotates with the movable blade and cannot fall off, thereby causing the late slag adhered to the blade tip and the shaft sleeve to be crushed and adhered to the shaft sleeve, which not only causes the late slag after shredding to be longer and does not meet the requirements of subsequent copper smelting, but also increases the load of the shredder, and finally causes the shredder to frequently get stuck, and the fixed blade, movable blade, shaft sleeve, and chassis are seriously deformed.

[0011] Based on the above reasons, the inventors choose to design the distance between the tip of the moving knife and the sleeve, the gap accuracy between the fixed knife and the moving knives on both sides, and the gap distance between the fixed knife and the sleeve to form the shredder for shredding the late slag of the copper slag smelting furnace.

[0012] In one of the embodiments, the gap accuracy between the fixed knife blades is 2-5 wires.

[0013] By adopting the above gap accuracy, it is possible to avoid the copper slag smelting furnace late stage slag being stuck between the cutter teeth due to its strong ductility.

[0014] In one of the embodiments, the base of the reducer is fixed on the chassis shell, and the gland of the gear box is fixed on the chassis shell.

[0015] The above fixing method can avoid the problem of violent jumping during the shredding process caused by the suspended installation method used by the reducer in the prior art.

[0016] In one embodiment, the machining accuracy of the base of the first spindle and the second spindle is 2-5 wires.

[0017] The above processing precision can greatly reduce the instability caused by the uneven base during the material shredding process.

[0018] In one embodiment, the movable knife blade body is disc-shaped, and the movable knife tip extends outward along the outer circumference of the movable knife blade body. The movable knife tips are evenly distributed in a spiral shape on the outer circumference of the movable knife blade body. There are 3 to 7 movable knife tips, and a center hole is provided through the center of the movable knife blade body to be detachably connected to the first spindle and the second spindle.

[0019] In one embodiment, the sleeve includes a cylindrical sleeve body, and a mounting hole detachably connected to the first main shaft and the second main shaft is provided through the center of the sleeve body, and the mounting holes are coaxial.

[0020] The present invention also provides a method for shredding the late slag of a copper dross smelting furnace, wherein the late slag of a copper dross smelting furnace is shredded into copper materials to be smelted by the shredder.

[0021] In one embodiment, the length, width and height of the copper material to be smelted are all ≤7 cm.

[0022] Only the copper smelting materials of the above-mentioned shapes and sizes can achieve better copper smelting effects in the subsequent copper smelting process.

[0023] In one of the embodiments, the Mohs hardness of the late slag of the copper slag smelting furnace is 1.5-7.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The invention provides a shredder for shredding late slag of a copper dross smelting furnace, which can process the late slag of a copper dross smelting furnace with large fluctuations in chemical composition and complex physical properties into a predetermined size so as to facilitate the smooth progress of subsequent copper smelting processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a top view of the shredder in Example 1; wherein 1000 is a chassis shell, 3000 is a reducer, 5000 is a motor, 2110 is a first main shaft, 2120 is a second main shaft, 2150 is a main shaft fixing plate, 3100 is a reducer fixing plate, and 4100 is a gear box pressure cover.

[0027] Figure 2 It is a cross-sectional view in the vertical direction of the shredder in Example 1; wherein 2110 is the first main shaft, 2120 is the second main shaft, 2210 is the fixed knife fixing plate, 2140 is the shaft sleeve, 2221 is the fixed knife body, 2222 is the fixed knife upper tip, 2223 is the fixed knife lower tip, 2131 is the movable knife body, and 2132 is the movable knife tip. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] definition:

[0032] The late slag of the copper slag smelting furnace described in the present invention is the late slag generated by the copper slag being treated in the slag smelting furnace and then left to stand and stratify, and the copper-containing material having a density between the early slag and the crude lead.

[0033] Unless otherwise specified, the reagents, materials, and equipment used in this example are all commercially available; the experimental methods are all conventional experimental methods in the art unless otherwise specified.

[0034] Example 1

[0035] 1. A shredder for shredding the late slag of a copper slag smelting furnace.

[0036] The top view of the shredder is as follows Figure 1 The vertical cross-section is shown in Figure 2 shown.

[0037] The shredder comprises:

[0038] A chassis assembly, comprising a chassis shell 1000, a shredding assembly, a reducer 3000, a gear box and a motor 5000, wherein the shredding assembly, the reducer 3000, the gear box and the motor 5000 are arranged in the chassis shell 1000, the shredding assembly, the reducer 3000, the gear box and the motor 5000 are connected through a transmission structure, the shredding assembly and the reducer 3000 are connected through spline teeth, and the gear box and the motor 5000 are connected through gears and a plum blossom coupling;

[0039] The shredding assembly includes a movable knife assembly and a fixed knife assembly, and the movable knife assembly includes a first spindle 2110, a second spindle 2120, a movable knife, a shaft sleeve 2140, and a spindle fixing plate 2150. The first spindle 2110 and the second spindle 2120 are arranged horizontally at the same horizontal height in parallel with each other, and are fixed to the chassis shell 1000 through the spindle fixing plate 2150. The first spindle 2110 and the second spindle 2120 are coaxially provided with a plurality of movable knives parallel to each other. The movable knives are arranged along the first spindle 2110. The first spindle 2110 and the second spindle 2120 are evenly arranged in the axial direction, the movable knives on the first spindle 2110 and the movable knives on the second spindle 2120 are staggered, the first spindle 2110 is provided with a sleeve corresponding to the movable knives of the second spindle 2120, and the second spindle 2120 is provided with a sleeve corresponding to the movable knives of the first spindle 2110, the movable knives include a movable knife body 2131 and a movable knife tip 2132, and the minimum distance between the movable knife tip 2132 and the corresponding sleeve is 0.6-1.7mm;

[0040] The fixed knife assembly includes a fixed knife fixing plate 2210 and a fixed knife. The fixed knife fixing plate 2210 is arranged on both sides of the chassis shell 1000. A plurality of parallel fixed knives are arranged on the fixed knife fixing plate 2210. The fixed knife and the shaft sleeve are clearance-matched. The clearance accuracy between the fixed knife and the moving knives on both sides is 1-6 wire. The fixed knife includes a fixed knife body 2221, an upper fixed knife tip 2222 and a lower fixed knife tip 2223. The clearance between the upper fixed knife tip 2222 and the shaft sleeve is 3-12 mm, and the clearance between the lower fixed knife tip 2223 and the shaft sleeve is 8-22 mm.

[0041] The feed assembly is fixed on the chassis shell 1000, and includes a feed port for materials to enter and a material cavity for materials to fall onto the shredding assembly. The material cavity is connected to the shredding assembly through a connecting port.

[0042] The gap accuracy between the fixed knife blades 2221 is 2-5 wires.

[0043] The base of the reducer 3000 is fixed on the chassis shell 1000 , and the pressure cover 4100 of the gear box is fixed on the chassis shell 1000 .

[0044] The processing accuracy of the base of the first main shaft 2110 and the second main shaft 2120 is 2-5 wires.

[0045] The movable knife body 2131 is disc-shaped, and the movable knife tip 2132 extends outward along the outer circumference of the movable knife body. The movable knife tips 2132 are evenly distributed in a spiral shape on the outer circumference of the movable knife body 2131. There are 3 to 7 movable knife tips 2132, and a center hole is provided through the center of the movable knife body 2131 to be detachably connected to the first spindle and the second spindle.

[0046] The shaft sleeve comprises a cylindrical sleeve body, a mounting hole detachably connected to the first main shaft and the second main shaft is provided through the center of the sleeve body, and the mounting holes are coaxial.

[0047] In this embodiment, the minimum distance between the moving knife tip 2132 and the corresponding sleeve is 1 mm, the clearance accuracy between the fixed knife and the moving knives on both sides is 3 threads, the clearance between the upper knife tip 2222 of the fixed knife and the sleeve is 7 mm, the clearance between the lower knife tip 2223 of the fixed knife and the sleeve is 15 mm, the clearance accuracy between the fixed knife blades is 3 threads, the machining accuracy of the base of the first spindle 2110 and the second spindle 2120 is 3 threads, and there are 6 moving knife tips 2132.

[0048] 2. A method for shredding slag in the late stage of a copper slag smelting furnace.

[0049] The late slag of the copper slag smelting furnace is a mixture with a wide range of physical properties. The Mohs hardness of some late slags is 6, the Mohs hardness of some late slags is 2, and the ductility of some late slags is the same as that of crude lead.

[0050] The late slag of the copper slag smelting furnace is crushed by the shredder to form a copper material to be smelted with a length, width and height of ≤7 cm.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A shredder for shredding copper slag smelting furnace late slag, characterized in that: include: A chassis assembly, comprising a chassis shell, a shredding assembly, a reducer, a gear box and a motor, wherein the shredding assembly, the reducer, the gear box and the motor are arranged in the chassis shell, the shredding assembly, the reducer, the gear box and the motor are connected through a transmission structure, the shredding assembly and the reducer are connected through spline teeth, and the gear box and the motor are connected through gears and a plum blossom coupling; The shredding assembly comprises a movable knife assembly and a fixed knife assembly, the movable knife assembly comprises a first spindle, a second spindle, a movable knife, a shaft sleeve, and a spindle fixing plate, the first spindle and the second spindle are arranged transversely and parallel to each other at the same horizontal height, and are fixed to the chassis shell through the spindle fixing plate, a plurality of movable knives parallel to each other are coaxially arranged on the first spindle and the second spindle, the movable knives are evenly arranged along the axial direction of the first spindle and the second spindle, the movable knives on the first spindle and the movable knives on the second spindle are arranged alternately, the first spindle outer sleeve is provided with a shaft sleeve corresponding to the movable knife of the second spindle, the second spindle outer sleeve is provided with a shaft sleeve corresponding to the movable knife of the first spindle, the movable knife comprises a movable knife body and a movable knife tip, and the minimum distance between the movable knife tip and the corresponding shaft sleeve is 0.6-1.7mm; the shaft sleeve comprises a cylindrical sleeve body, and a mounting hole detachably connected to the first spindle and the second spindle is provided through the center of the sleeve body, and the mounting hole is coaxial; The fixed knife assembly includes a fixed knife fixing plate and a fixed knife, the fixed knife fixing plate is arranged on both sides of the chassis shell, a plurality of parallel fixed knives are arranged on the fixed knife fixing plate, the fixed knife and the shaft sleeve are clearance matched, the clearance accuracy between the fixed knife and the movable knives on both sides is 1-6 wires, the fixed knife includes a fixed knife body, an upper fixed knife tip and a lower fixed knife tip, the clearance between the upper fixed knife tip and the shaft sleeve is 3-12mm, the clearance between the lower fixed knife tip and the shaft sleeve is 8-22mm, and the clearance accuracy between the fixed knife bodies is 2-5 wires; as well as The feed assembly is fixed on the chassis shell, and comprises a feed port for materials to enter and a material cavity for materials to fall onto the shredding assembly. The material cavity is connected with the shredding assembly through a connecting port.

2. The shredder according to claim 1, characterized in that: The base of the reducer is fixed on the chassis shell, and the pressure cover of the gear box is fixed on the chassis shell.

3. The shredder according to claim 1, characterized in that: The machining accuracy of the bases of the first spindle and the second spindle is 2-5 wires.

4. The shredder according to claim 1, characterized in that: The movable knife body is disc-shaped, and the movable knife tip extends outward along the outer circumference of the movable knife body. The movable knife tips are evenly distributed in a spiral shape on the outer circumference of the movable knife body. There are 3 to 7 movable knife tips, and a center hole is provided through the center of the movable knife body to be detachably connected to the first spindle and the second spindle.

5. A method for shredding slag in the late stage of copper slag smelting furnace, characterized in that: The late slag of the copper dross smelting furnace is crushed into copper materials to be smelted by the shredder described in any one of claims 1 to 4.

6. The shredding method according to claim 5, characterized in that: The length, width and height of the copper smelting material are all ≤7 cm.

7. The shredding method according to claim 5, characterized in that: The Mohs hardness of the late slag of the copper slag smelting furnace is 1.5-7.

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