Environment-friendly crushing device and method for zinc smelting waste residues

Abstract

The invention relates to the technical field of waste residue crushing, in particular to an environment-friendly crushing device and method for zinc smelting waste residues. The crushing device comprises a crushing bin and crushing rollers, the top of the crushing bin fixedly communicates with a feeding channel, a discharging opening is formed in the bottom of the crushing bin, and the crushing rollers are arranged on the inner side of the crushing bin; the dust removal device comprises a dust removal box, a sucking pump and a filtering device, the outer side wall of the left part of the feeding channel fixedly communicates with the dust removal box, the filtering device is arranged on the inner side of the dust removal box, and the sucking pump is fixedly mounted on the outer side of the dust removal box; according to the device, the pressing box and the material homogenizing teeth are arranged, in the process that the crushing rollers rotate to crush the zinc-containing waste residues, the pressing box rotates downwards to drive the material homogenizing teeth to extrude the zinc-containing waste residues, through reciprocating movement of the material homogenizing teeth, the zinc-containing waste residues are homogenized, accumulation of the zinc-containing waste residues is avoided, and the dispersion uniformity of the zinc-containing waste residues is improved; and the crushing uniformity is further improved, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste slag crushing, and in particular to an environmentally friendly crushing device and method for zinc smelting waste slag. Background Art

[0002] Zinc-containing waste slag is the waste slag produced in the zinc smelting process. It still contains a certain amount of zinc material and needs to be processed. The common steps for processing zinc-containing waste slag are crushing and defoaming. Through the processing of zinc-containing waste slag, the extraction efficiency of new materials from zinc-containing impurities is further improved.

[0003] Chinese invention patent CN117019363A discloses a waste slag treatment device for zinc smelting, comprising a bracket, a crushing box is fixedly installed on the upper surface of the bracket, a lower hopper is fixedly installed on the upper surface of the crushing box, a driving shaft and a driven shaft are rotatably installed inside the crushing box, and also comprises: a screening device respectively arranged on the lower side of the bracket for screening the zinc-containing waste slag after crushing, the screening device comprises four support rods fixedly installed on the lower surface of the bracket, positioning blocks are slidably installed on the surfaces of the four support rods, the four positioning blocks are grouped in pairs, guide frames are slidably installed on the surfaces of two positioning blocks, and a sieve plate is fixedly installed on the side of the two guide frames close to each other. The present invention improves the efficiency of crushing the zinc-containing waste slag by arranging the screening device and then using the crushing box to perform secondary crushing on the large-particle zinc-containing waste slag after screening.

[0004] The above-mentioned patent discloses dust reduction by spraying water, which not only consumes a large amount of water resources, but also requires the wet waste slag to be dried, which is rather troublesome. At the same time, the traditional zinc-containing waste slag crushing equipment is a double-roller crushing mechanism, and the zinc-containing waste slag is loaded in batches onto the top surface of the crushing roller. Due to the uneven particles of the zinc-containing waste slag, the spherical waste is easily rolled over and splashed after being squeezed by the rotation of the crushing roller, which affects the crushing speed and efficiency. Concentrated loading is also prone to cause material accumulation, affecting the uniformity of crushing, and further improvements can be made. Summary of the invention

[0005] The present invention provides an environmentally friendly crushing device and method for zinc smelting waste slag, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the existing zinc smelting waste slag treatment device adopts a roller crushing mechanism for crushing, and the waste slag is easy to accumulate, resulting in low crushing efficiency.

[0006] In order to solve the above problems, the environmentally friendly crushing device for zinc smelting waste slag described in the present invention includes a crushing device, a dust removal device and a pressing device; the crushing device includes a crushing bin and a crushing roller, the top of the crushing bin is fixedly connected with a feed channel, the bottom of the crushing bin is provided with a discharge port, and the inner side of the crushing bin is provided with a crushing roller; the dust removal device includes a dust removal box, an air pump and a filtering device, the outer side wall of the left part of the feed channel is fixedly connected with a dust removal box, the inner side of the dust removal box is provided with a filtering device, and the outer side of the dust removal box is fixedly installed with an air pump; The pressing device includes a pressing box, a movable pressing plate, a cylinder, a sliding device and a reciprocating device. The pressing box is hinged on the inner wall of the right part of the feed channel, and a sliding device is provided on the side of the pressing box close to the inner wall of the feed channel. A cylinder is fixedly installed on the outer side of the feed channel corresponding to the position of the pressing box, and the piston rod of the cylinder passes through the feed channel and is hinged with the sliding device; the side of the pressing box away from the feed channel is a movable pressing plate, and a reciprocating device capable of driving the movable pressing plate to reciprocate is provided on the inner side of the pressing box, and a plurality of material balancing teeth are evenly distributed on the side of the movable pressing plate away from the inner side of the pressing box.

[0007] The above-mentioned reciprocating device includes a moving block, a screw and a motor. A screw is movably installed in the center of the inner side of the press box along the direction of the press box. A motor is installed on the front side of the press box. The output shaft of the motor is fixedly connected to the front end of the screw. A moving block is screwed on the outer side of the screw located on the inner side of the press box.

[0008] The sliding device comprises a slider, a slide groove and a guide rod. A slide groove inclined upward and downward is provided on the outer side of the right part of the press box. A slider is slidably connected to the inner side of the slide groove. Guide rods slidably connected to the slider are fixedly installed on both sides of the slide groove.

[0009] The above-mentioned filtering device includes a perforated plate and filter cotton. A perforated plate with a slanted distribution of higher on the left and lower on the right is provided on the inner side of the dust removal box. Filter cotton is provided on the orifice plate. The dust removal box at the lower left side of the orifice plate is fixedly connected to the vacuum pump, and a cleaning door is sealed and installed on the outer side of the dust removal box at the upper right side of the orifice plate.

[0010] The above also includes a dust conveying channel, and the dust conveying channel is fixedly connected between the feeding channel and the dust removal box, and a plurality of dust suction holes are arranged on the feeding channel corresponding to the position of the dust conveying channel.

[0011] The dust removal box and the bottom of the crushing bin are both provided with multiple sets of supporting legs.

[0012] The above also includes a hinge, and the bottom of the press box and the inner wall of the feed channel are hinged together through the hinge.

[0013] The bottom end of the above-mentioned discharge port is fixedly connected with an impact crushing bin, an impact crushing hammer is installed inside the impact crushing bin, and a plurality of discharge holes that penetrate inside and outside are opened at the bottom of the impact crushing bin.

[0014] A rod vibrating feeder is arranged above the feeding channel.

[0015] The second technical solution of the present invention is achieved by the following method: a method for environmentally friendly crushing of zinc smelting waste slag, comprising the following steps: The zinc-containing waste slag enters the crushing bin through the feeding channel, and the crushing roller rotates to crush the zinc-containing waste slag; The cylinder pushes the pressing box hinged to the feeding channel to rotate to the lower left, driving the movable pressing plate and the material leveling teeth to squeeze the zinc-containing waste slag; The motor drives the screw to rotate, drives the moving block to do reciprocating motion on the outside of the screw, and further drives the equalizing teeth to move, so as to equalize the zinc-containing waste slag; The vacuum pump starts to extract the air in the dust removal box, making the dust removal box and the dust conveying channel in a negative pressure state, thereby sucking the dust generated during the crushing process into the dust removal box; The crushed zinc-containing waste slag is discharged from the discharge port into the impact crushing bin, and is discharged from the discharge hole after secondary crushing by the impact breaker.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention provides a pressing box and a material leveling tooth. When the crushing roller rotates to crush the zinc-containing waste slag, the pressing box rotates downward to drive the material leveling tooth to squeeze the zinc-containing waste slag, thereby avoiding the problem of splashing of the zinc-containing waste slag during crushing and rolling of the zinc-containing waste slag. The reciprocating movement of the material leveling tooth can level the zinc-containing waste slag, avoid the accumulation of the zinc-containing waste slag, improve the dispersion uniformity of the zinc-containing waste slag, further improve the crushing uniformity, and improve the work efficiency.

[0017] Furthermore, the present invention adopts a dust removal box. During the crushing process of zinc-containing waste slag, the vacuum pump is started to extract the air inside the dust removal box, so that the dust generated by the crushing enters the dust removal box through the dust suction hole. After being filtered by the filtering device, the dust stays in the dust removal box, completing the dust prevention and dust collection work, avoiding the problem of direct dust discharge to pollute the environment, improving work efficiency, and at the same time changing the traditional process of using water to reduce dust, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of Example 1 of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0021] Figure 3 for Figure 1 Enlarged structural diagram of point A in the middle.

[0022] Figure 4This is a schematic diagram of the structure of the pressure box in Example 1 of the present invention.

[0023] In the figure: 1-crushing bin, 2-crushing roller, 3-feeding channel, 4-discharging port, 5-dust removal box, 6-vacuum pump, 7-pressing box, 8-movable pressing plate, 9-cylinder, 10-equalizing teeth, 11-moving block, 12-screw, 13-motor, 14-slider, 15-chute, 16-guide rod, 17-orifice plate, 18-filter cotton, 19-cleaning door, 20-dust conveying channel, 21-dust suction hole, 22-support leg, 23-hinge, 24-rod vibrating feeder, 25-impact crushing bin, 26-impact breaker, 27-discharging port. DETAILED DESCRIPTION

[0024] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0025] Example 1: Figure 1-4 As shown, the embodiment of the present invention discloses an environmentally friendly crushing device for zinc smelting waste slag, including a crushing device, a dust removal device and a pressing device; the crushing device includes a crushing bin 1 and a crushing roller 2, the top of the crushing bin 1 is fixedly connected with a feed channel 3, the bottom of the crushing bin 1 is provided with a discharge port 4, and the inner side of the crushing bin 1 is provided with a crushing roller 2; the dust removal device includes a dust removal box 5, an air pump 6 and a filtering device, the outer side wall of the left part of the feed channel 3 is fixedly connected with the dust removal box 5, the inner side of the dust removal box 5 is provided with a filtering device, and the outer side of the dust removal box 5 is fixedly installed with an air pump 6; The pressing device includes a pressing box 7, a movable pressing plate 8, a cylinder 9, a sliding device and a reciprocating device. The pressing box 7 is hinged on the inner wall of the right part of the feed channel 3. A sliding device is provided on the side of the pressing box 7 close to the inner wall of the feed channel 3. A cylinder 9 is fixedly installed on the outer side of the feed channel 3 corresponding to the position of the pressing box 7. The piston rod of the cylinder 9 passes through the feed channel 3 and is hinged with the sliding device; the side of the pressing box 7 away from the feed channel 3 is a movable pressing plate 8, and the inner side of the pressing box 7 is provided with a reciprocating device that can drive the movable pressing plate 8 to reciprocate, and the side of the movable pressing plate 8 away from the inner side of the pressing box 7 is evenly distributed with a plurality of material balancing teeth 10.

[0026] The crushing roller 2 is a double-roller structure, and a driving structure of the crushing roller 2 is installed on the front of the crushing bin 1 for driving the crushing roller 2 to rotate and crush the zinc-containing waste entering the crushing bin 1.

[0027] Among them, the material leveling teeth 10 adopt a steel structure, which is more sturdy and durable. The material leveling teeth 10 are arranged in multiple groups with equal intervals. Through the reciprocating movement of the material leveling teeth 10, the purpose of leveling the zinc-containing waste slag is achieved, the accumulation of zinc-containing waste slag is avoided, the dispersion uniformity of the zinc-containing waste slag is improved, and then the uniformity of crushing is improved, the problem of local excessive wear of the crushing roller 2 is avoided, and the work efficiency is improved.

[0028] like Figure 1 , 3 As shown, the reciprocating device includes a moving block 11, a screw rod 12 and a motor 13. The screw rod 12 is movably installed in the center of the inner side of the press box 7 along the direction of the press box 7. The motor 13 is installed on the front side of the press box 7. The output shaft of the motor 13 is fixedly connected to the front end of the screw rod 12. The moving block 11 is screwed on the outer side of the screw rod 12 located on the inner side of the press box 7. Therefore, the motor 13 is started, driving the screw rod 12 to rotate, so that the moving block 11 screwed on the screw rod 12 reciprocates on the outer side of the screw rod 12, and further drives the movable pressing plate 8 to reciprocate.

[0029] like Figure 1 , 3 As shown in FIG. 4 , the sliding device includes a slider 14, a slide groove 15 and a guide rod 16. A slide groove 15 inclined upward and downward is opened on the outer side of the right part of the press box 7. The slider 14 is slidably connected to the inner side of the slide groove 15. Guide rods 16 slidably connected to the slider 14 are fixedly installed on both sides of the slide groove 15.

[0030] Therefore, by providing the guide rod 16 as a sliding guide for the slider 14 , the slider 14 is prevented from being separated from the slide groove 15 during the sliding process.

[0031] like Figure 1 , 2 As shown, the filtering device includes a perforated plate 17 and filter cotton 18. The inner side of the dust removal box 5 is provided with a perforated plate 17 which is inclined with the left side higher and the right side lower. The filter cotton 18 is provided on the perforated plate 17. The dust removal box 5 at the lower left side of the perforated plate 17 is fixedly connected to the vacuum pump 6. The outer side of the dust removal box 5 at the upper right side of the perforated plate 17 is sealed with a cleaning door 19.

[0032] Therefore, the orifice plate 17 is sealed and connected to the dust removal box 5, and the area of ​​the filter cotton 18 is consistent with the area of ​​the orifice plate 17. By connecting the filter cotton 18 to the orifice plate 17, the installation of the filter cotton 18 is convenient, thereby achieving the filtering effect; and by setting the orifice plate 17 and the filter net with an inclined distribution of higher on the left and lower on the right, the dust is concentrated and accumulated on the right side, which is convenient for cleaning.

[0033] Among them, a cleaning door 19 is set, and the bottom of the cleaning door 19 is flush with the bottom of the filter cotton 18. The cleaning door 19 adopts a sealed door to avoid air leakage during the vacuum pump 6. When in use, the dust waste in the dust removal box 5 can be cleaned by opening the cleaning door 19.

[0034] like Figure 1 , 2 As shown, it also includes a dust conveying channel 20. The dust conveying channel 20 is fixedly connected between the feeding channel 3 and the dust removal box 5. A plurality of dust suction holes 21 are provided on the feeding channel 3 corresponding to the position of the dust conveying channel 20.

[0035] Therefore, the dust suction holes 21 are arranged in multiple groups at equal intervals, and the aperture of the dust suction holes 21 is smaller than the minimum particle size of the zinc-containing waste slag, thereby preventing the zinc-containing waste slag from entering the dust removal box 5 under the action of the vacuum pump 6 and avoiding leakage of the zinc-containing waste slag.

[0036] like Figure 1 , 2 As shown, the dust removal box 5 and the bottom of the crushing bin 1 are both provided with a plurality of supporting legs 22. Thus, the dust removal box 5 and the crushing bin 1 are conveniently supported.

[0037] like Figure 1 , 3 As shown, a hinge 23 is also included, and the bottom of the press box 7 and the inner wall of the feed channel 3 are hinged together through the hinge 23. Thus, it is convenient for the press box 7 to move along the direction of the hinge 23 under the action of the cylinder 9.

[0038] like Figure 1 As shown, the bottom end of the discharge port 4 is fixedly connected to an impact crushing bin 25, an impact crushing hammer 26 is installed inside the impact crushing bin 25, and a driving structure of the impact crushing hammer 26 is installed on the front surface of the impact crushing bin 25. A plurality of discharge holes 27 that penetrate inside and outside are opened at the bottom of the impact crushing bin 25. The aperture of the discharge hole 27 matches the target particle size, which facilitates crushing to the target particle size, plays a role of secondary crushing, and improves the crushing efficiency.

[0039] like Figure 1 As shown, a rod vibrating feeder 24 is installed above the feeding channel 3 to further improve the uniformity of feeding.

[0040] Embodiment 2: The embodiment of the present invention discloses an environmentally friendly crushing method for zinc smelting waste slag, comprising the following steps: The zinc-containing waste slag enters the crushing chamber 1 through the feed channel 3, and the crushing roller 2 rotates to crush the zinc-containing waste slag; The cylinder 9 pushes the pressing box 7 hinged to the feeding channel 3 to rotate to the lower left, driving the movable pressing plate 8 and the material leveling teeth 10 to squeeze the zinc-containing waste slag; The motor 13 drives the screw rod 12 to rotate, drives the moving block 11 to reciprocate outside the screw rod 12, and further drives the material leveling teeth 10 to move, so as to level the zinc-containing waste slag; The vacuum pump 6 is started to extract the air in the dust removal box 5, so that the dust removal box 5 and the dust conveying channel 20 are in a negative pressure state, thereby sucking the dust generated during the crushing process into the dust removal box 5; The crushed zinc-containing waste slag is discharged from the discharge port 4 into the impact crushing bin 25 , and is discharged from the discharge hole 27 after secondary crushing by the impact crushing hammer 26 .

[0041] Embodiment 3: The working principle of an environmentally friendly crushing device for zinc smelting waste slag is disclosed in the embodiment of the present invention, which is as follows: The zinc-containing waste slag generated during the smelting process enters the crushing bin 1 through the feed channel 3, and the crushing roller 2 rotates to crush the zinc-containing waste slag. During the crushing process, the cylinder 9 extends, pushing the press box 7 to rotate downward along the hinge 23, driving the movable pressing plate 8 and the material-leveling teeth 10 to squeeze the zinc-containing waste slag, preventing the zinc-containing waste slag from splashing and rolling, accelerating the zinc-containing waste slag to enter between the crushing rollers 2 for crushing, and improving the crushing efficiency. At the same time, the motor 13 drives the screw rod 12 to rotate, thereby driving the moving block 11 to move back and forth, and further driving the material-leveling teeth 10 at the bottom of the movable pressing plate 8 to move back and forth, so as to crush the zinc-containing waste slag. The material is evenly distributed, and the accumulation of zinc-containing waste slag is avoided, the dispersion uniformity of zinc-containing waste slag is improved, and then the uniformity of crushing is improved, the problem of local excessive wear of the crushing roller 2 is avoided, and the work efficiency is improved. At the same time, in the process of crushing zinc-containing waste slag, the vacuum pump 6 is started to extract the air inside the dust removal box 5, and the dust suction hole 21 is in a negative pressure state through the connection effect of the dust conveying channel 20. The dust generated by the crushing enters the dust conveying channel 20 through the dust suction hole 21. After being filtered by the filter cotton 18, the dust stays in the dust removal box 5, completing the dust prevention and collection work, without the need to use water to reduce dust, thereby improving the convenience of use.

[0042] In summary, the present invention provides a pressing box 7 and a leveling tooth 10. When the crushing roller 2 rotates to crush the zinc-containing waste slag, the pressing box 7 rotates downward to drive the leveling tooth 10 to squeeze the zinc-containing waste slag, thereby avoiding the problem of splashing of the zinc-containing waste slag during crushing and the rolling of the zinc-containing waste slag. Moreover, the reciprocating movement of the leveling tooth 10 can level the zinc-containing waste slag to avoid accumulation of the zinc-containing waste slag, thereby improving the dispersion uniformity of the zinc-containing waste slag, further improving the uniformity of crushing, and improving work efficiency.

[0043] Furthermore, the present invention adopts a dust removal box 5. During the crushing process of zinc-containing waste slag, the vacuum pump 6 is started to extract the air inside the dust removal box 5, so that the dust generated by the crushing enters the dust removal box 5 through the dust suction hole 21. After being filtered by the filtering device, the dust stays in the dust removal box 5, completing the dust prevention and dust collection work, avoiding the problem of direct dust discharge to pollute the environment, improving work efficiency, and at the same time changing the traditional process of using water to reduce dust, thereby improving the convenience of using the device.

Claims

1. A zinc smelting waste residue environmentally friendly crushing device, characterized in that: It includes a crushing device, a dust removal device and a pressing device; the crushing device includes a crushing bin and a crushing roller, the top of the crushing bin is fixedly connected with a feeding channel, the bottom of the crushing bin is provided with a discharge port, and the inner side of the crushing bin is provided with a crushing roller; the dust removal device includes a dust removal box, an air pump and a filtering device, the outer side wall of the left part of the feeding channel is fixedly connected with a dust removal box, the inner side of the dust removal box is provided with a filtering device, and the outer side of the dust removal box is fixedly installed with an air pump; The pressing device includes a pressing box, a movable pressing plate, a cylinder, a sliding device and a reciprocating device. The pressing box is hinged on the inner wall of the right part of the feed channel, and a sliding device is provided on the side of the pressing box close to the inner wall of the feed channel. A cylinder is fixedly installed on the outer side of the feed channel corresponding to the position of the pressing box, and the piston rod of the cylinder passes through the feed channel and is hinged with the sliding device; the side of the pressing box away from the feed channel is a movable pressing plate, and a reciprocating device capable of driving the movable pressing plate to reciprocate is provided on the inner side of the pressing box, and a plurality of material balancing teeth are evenly distributed on the side of the movable pressing plate away from the inner side of the pressing box.

2. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: The reciprocating device includes a moving block, a screw and a motor. A screw is movably installed in the center of the inner side of the press box along the direction of the press box. The motor is installed on the front side of the press box. The output shaft of the motor is fixedly connected to the front end of the screw. The moving block is screwed on the outer side of the screw located on the inner side of the press box.

3. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: The sliding device includes a slider, a slide groove and a guide rod. A slide groove inclined upward and downward is opened on the outer side of the right part of the press box. The slider is slidably connected inside the slide groove. Guide rods slidably connected to the slider are fixedly installed on both sides of the slide groove.

4. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: The filtering device includes a perforated plate and filter cotton. A perforated plate with a tilted distribution of higher on the left and lower on the right is arranged on the inner side of the dust removal box. Filter cotton is arranged on the perforated plate. The dust removal box at the lower left side of the orifice plate is fixedly connected to the vacuum pump, and a cleaning door is sealed and installed on the outer side of the dust removal box at the upper right side of the orifice plate.

5. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: It also includes a dust conveying channel, which is fixedly connected between the feed channel and the dust removal box, and a plurality of dust suction holes are arranged on the feed channel corresponding to the position of the dust conveying channel.

6. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: There are multiple sets of supporting legs at the bottom of the dust removal box and the crushing chamber.

7. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: It also includes a hinge, through which the bottom of the press box and the inner wall of the feed channel are hinged together.

8. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1 is characterized in that: The bottom end of the discharge port is fixedly connected with an impact crushing bin, an impact crushing hammer is installed inside the impact crushing bin, and a plurality of discharge holes which are connected inside and outside are opened at the bottom of the impact crushing bin.

9. The environmentally friendly crushing device for zinc smelting waste slag according to claim 1, characterized in that: A rod vibrating feeder is arranged above the feeding channel.

10. An environmentally friendly crushing method for zinc smelting waste slag, characterized in that: The following steps are involved: The zinc-containing waste slag enters the crushing bin through the feeding channel, and the crushing roller rotates to crush the zinc-containing waste slag; The cylinder pushes the pressing box hinged to the feeding channel to rotate to the lower left, driving the movable pressing plate and the material leveling teeth to squeeze the zinc-containing waste slag; The motor drives the screw to rotate, drives the moving block to do reciprocating motion on the outside of the screw, and further drives the equalizing teeth to move, so as to equalize the zinc-containing waste slag; The vacuum pump starts to extract the air in the dust removal box, making the dust removal box and the dust conveying channel in a negative pressure state, thereby sucking the dust generated during the crushing process into the dust removal box; The crushed zinc-containing waste slag is discharged from the discharge port into the impact crushing bin, and is discharged from the discharge hole after secondary crushing by the impact breaker.

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