A mill for processing mine waste

Abstract

The utility model relates to the technical field of mine waste recovery, specifically is a mine waste treatment with flour mill, including the casing, the casing bottom inner wall department is provided with the collection cavity for collecting the processing powder, the casing top inner wall department fixed mounting has the grading crushing mechanism for the mine waste grading crushing, the grading crushing mechanism bottom is provided with the grinding mechanism, the collection cavity inside is installed with detachable grading filter mechanism, this mine waste treatment with flour mill, through the grading filter mechanism that links to each other with the grinding mechanism, can utilize the rotation of transmission shaft, drive the synchronous transmission of link ring block and the top rod, and further make the damping top block periodic knockdown filter plate, produce sustained, steady microvibration, this initiative, self -cleaning's unblock mechanism, can effectively shake off and block the particle in the filter hole, has guaranteed the smooth of filtration process, improved the continuous operation ability and production efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of mining waste recycling technology, specifically a grinding mill for mining waste treatment. Background Technology

[0002] Mining and mineral processing generate large amounts of solid waste. The accumulation of this waste not only occupies land resources but can also cause environmental pollution. Utilizing it as a resource, such as as a building material or filler, is an effective way to solve this problem. Processing the mine waste into powder of a specific particle size using a grinding mill is a crucial preliminary step in achieving this resource utilization.

[0003] For example, Chinese utility model patent with publication number "CN216678415U" discloses a mining waste recycling device. This device uses a sprayer at the inlet to remove dust from the waste entering the device, preventing dust generated during operation from escaping through the outlet at the top. A baffle at the inlet prevents dust from entering the environment. The meshing abrasive grains between the upper and lower discs grind the particles in the waste, and a radial groove between the upper and lower discs allows the produced powder to be discharged. Furthermore, by setting the surface of the upper disc to be inwardly inclined, combined with an inclined baffle at the bottom of the inlet, the waste enters the grinding disc and is prevented from directly entering the outlet.

[0004] However, the aforementioned existing technologies have the following shortcomings in practical implementation: In the process of discharging powdered waste slag, the powder relies solely on gravity to pass through a fixed screen or radial trough. When processing waste slag with slight moisture or containing fine sticky substances, the screening channel is easily blocked, causing the equipment to be unable to operate continuously and requiring frequent shutdowns for manual cleaning, which seriously restricts production efficiency. Moreover, the crushing function is singular, with prominent issues of efficiency and energy consumption. It mostly uses a single grinding disc for crushing, lacking effective pre-crushing and grading crushing stages. Large pieces of waste slag directly enter the fine grinding stage, which not only has a large impact on the grinding disc and causes rapid wear, but also results in some materials being over-ground while others still do not meet the standards, leading to low overall processing efficiency.

[0005] Therefore, we propose a grinding mill for treating mine waste. Summary of the Invention

[0006] One of the technical problems to be solved by this application is that, in the prior art, the grinding mills used for treating mine waste have a single crushing function, prominent efficiency and energy consumption problems, and the lack of screening anti-blocking mechanism is not conducive to continuous operation.

[0007] To address the aforementioned technical problems, this application provides a grinding mill for treating mine waste, comprising a housing, a collecting chamber for collecting processed powder on the inner wall of the bottom of the housing, a grading and crushing mechanism for classifying and crushing mine waste fixedly installed on the inner wall of the top of the housing, a grinding mechanism at the bottom of the grading and crushing mechanism, and a detachable grading and filtering mechanism installed inside the collecting chamber. The grinding mechanism includes: A grinding base, which is fixed to the bottom of the grading and crushing mechanism; A grinding disc, which is installed inside and cooperates with a grinding base; The second servo motor is fixedly installed inside the collection cavity; A drive shaft is fixedly installed at the output end of the second servo motor, and the top end of the drive shaft is fixedly connected to the grinding seat. The graded filtration mechanism includes: Through slots, and multiple sets of through slots are provided, with the multiple sets of through slots symmetrically opened on both sides of the bottom of the shell; The filter frame is provided in multiple sets, and the multiple sets of filter frames are slidably connected to multiple sets of through slots, and the multiple sets of filter frames are symmetrically arranged along the drive shaft. The filter plate is provided in multiple sets, and the multiple sets of filter plates are supported and placed on the bottom inner wall of multiple sets of filter frames. A connecting ring block, wherein multiple sets of the connecting ring blocks are sleeved and fixed to the outer surface of the transmission shaft; A jacking rod is fixedly installed on the outer surface of the connecting ring block, and a damping block for jacking the filter plate is fixedly installed at the outer end of the jacking rod.

[0008] In some embodiments, the grading and crushing mechanism includes a crushing chamber and two sets of gear transmission chambers. The crushing chamber is fixedly installed inside the housing, and the gear transmission chamber is fixedly installed on one side of the top of the housing. Multiple crushing rollers are arranged in stages inside the crushing chamber. The multiple crushing rollers are respectively connected to the two sets of gear transmission chambers. A first servo motor is fixedly installed outside each of the two sets of gear transmission chambers, and the output end of the first servo motor is connected to the gear transmission chamber.

[0009] In some embodiments, the grinding mechanism further includes a protective housing for providing external protection to the second servo motor, the protective housing being sleeved and installed outside the second servo motor, and the bottom of the protective housing being fixedly connected to the bottom surface of the housing.

[0010] In some embodiments, the graded filtration mechanism further includes multiple sets of support blocks for providing bottom support to the filter frame and multiple sets of limiting blocks for providing bottom support to the filter plate. The multiple sets of support blocks are fixedly installed on the inner wall of the housing, and the multiple sets of limiting blocks are fixedly installed at the bottom corner of the filter frame.

[0011] In some embodiments, a support foot is fixedly installed at the bottom corner of the housing, a feed inlet is provided at the top of the housing, and a discharge outlet is provided at the bottom of the housing, with a sealing plate slidably connected inside the discharge outlet.

[0012] In some embodiments, a drying mechanism for drying powder is provided on the inner wall of the housing, and a dust collection mechanism for suppressing dust at the feed inlet is provided on the top of the housing. The drying mechanism includes a hot air chamber fixedly installed on the inner wall of the housing and an exhaust fan embedded in one side of the housing, and the hot air chamber and the exhaust fan are connected in a through connection.

[0013] In some embodiments, the dust collection mechanism includes a suction chamber and a dust baffle frame fixedly installed on the top of the housing. The suction chamber is fixedly installed on one side of the dust baffle frame, and a suction window communicating with the suction chamber is provided on one side of the dust baffle frame. A dust collection interface is provided outside the suction chamber.

[0014] This utility model has at least the following beneficial effects: 1. This grinding mill for treating mine waste slag, through a graded filtration mechanism linked to the grinding mechanism, utilizes the rotation of the drive shaft to drive the connecting ring block and the jacking rod synchronously, thereby causing the damping jacking block to periodically jack the filter plate, generating continuous and stable micro-vibrations. This active, self-cleaning unclogging mechanism can effectively shake off particles clogging the filter holes, ensuring a smooth filtration process and improving the continuous operation capability and production efficiency of the equipment. Furthermore, in conjunction with multi-stage crushing rollers to crush the mine waste slag from coarse to fine, the material can reach a relatively uniform intermediate particle size before entering the fine grinding stage, effectively avoiding the coexistence of "over-grinding" and "under-grinding" caused by direct grinding in single-stage crushing in existing technologies. This reduces the load and energy consumption of the subsequent grinding mechanism and further improves the overall crushing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the rear view of the external structure of this utility model; Figure 3 This is a schematic diagram of the external structure of this utility model from a bottom view; Figure 4 This is a schematic diagram of the main half-section structure of this utility model; Figure 5This is a schematic diagram of the external structure of the connection between the grinding mechanism and the grading and filtering mechanism of this utility model.

[0016] In the diagram: 1. Shell; 101. Feed inlet; 102. Discharge outlet; 103. Sealing plate; 104. Support foot; 110. Collection chamber; 2. Dust collection mechanism; 201. Dust baffle frame; 202. Suction window; 210. Suction chamber; 211. Dust collection interface; 3. Grading and crushing mechanism; 301. Crushing chamber; 302. Multi-stage crushing roller; 310. Gear transmission chamber; 311. First servo motor; 4. Grinding mechanism; 401. Grinding seat; 410. Grinding disc; 420. Second servo motor; 421. Drive shaft; 422. Protective shell; 5. Grading and filtering mechanism; 501. Through slot; 502. Support block; 510. Filter frame; 511. Limiting block; 520. Filter plate; 530. Connecting ring block; 531. Push rod; 6. Drying mechanism; 601. Hot air chamber; 610. Exhaust fan. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-5 This utility model provides a technical solution: a grinding mill for treating mine waste slag, including a shell 1, a collecting chamber 110 for collecting processed powder is provided on the inner wall of the bottom of the shell 1, a grading and crushing mechanism 3 for grading and crushing mine waste slag is fixedly installed on the inner wall of the top of the shell 1, a grinding mechanism 4 is provided at the bottom of the grading and crushing mechanism 3, a detachable grading and filtering mechanism 5 is installed inside the collecting chamber 110, and the grinding mechanism 4 includes: Grinding base 401, grinding base 401 is fixed to the bottom of the grading and crushing mechanism 3; Grinding disc 410 is installed inside and cooperates with grinding base 401; The second servo motor 420 is fixedly installed inside the collection cavity 110; The drive shaft 421 is fixedly installed at the output end of the second servo motor 420, and the top end of the drive shaft 421 is fixedly connected to the grinding seat 401. The graded filtration mechanism 5 includes: Through slot 501, multiple sets of through slot 501 are provided, and multiple sets of through slot 501 are symmetrically opened on both sides of the bottom of the shell 1; The filter frame 510 is provided in multiple sets. The multiple sets of filter frames 510 are slidably connected to multiple sets of through slots 501, and the multiple sets of filter frames 510 are symmetrically arranged along the drive shaft 421. The filter plate 520 is provided in multiple sets, and the multiple sets of filter plates 520 are supported and placed on the bottom inner wall of the multiple sets of filter frames 510. Connecting ring block 530, multiple sets of connecting ring block 530 are provided, and multiple sets of connecting ring block 530 are sleeved and fixed on the outer surface of transmission shaft 421; A push rod 531 is fixedly installed on the outer surface of the connecting ring block 530, and a damping top block for pushing the filter plate 520 is fixedly installed at the outer end of the push rod 531.

[0019] The grading and crushing mechanism 3 includes a crushing chamber 301 and two sets of gear transmission chambers 310. The crushing chamber 301 is fixedly installed inside the housing 1, and the gear transmission chambers 310 are fixedly installed on one side of the top of the housing 1. Multiple crushing rollers 302 are arranged in stages inside the crushing chamber 301. The multiple crushing rollers 302 are respectively connected to the two sets of gear transmission chambers 310. A first servo motor 311 is fixedly installed on the outside of each of the two sets of gear transmission chambers 310, and the output end of the first servo motor 311 is connected to the gear transmission chamber 310.

[0020] The graded filtration mechanism 5 also includes multiple sets of support blocks 502 for providing bottom support for the filter frame 510 and multiple sets of limiting blocks 511 for providing bottom support for the filter plate 520. The multiple sets of support blocks 502 are fixedly installed on the inner wall of the housing 1, and the multiple sets of limiting blocks 511 are fixedly installed at the bottom corner of the filter frame 510.

[0021] Through the above technical solution, the graded filtration mechanism 5 achieves multi-stage filtration of powder through multiple sets of filter plates 520. The filter plates 520 can have different pore sizes to separate powders of different fineness. The filter frame 510 can be slidably disassembled through the through slot 501, which facilitates cleaning and replacement of the filter plates 520. When the drive shaft 421 rotates, the connecting ring block 530 and the push rod 531 periodically push the filter plates 520 to generate vibration, preventing the filter plates 520 from clogging and improving the filtration efficiency.

[0022] Please see Figure 1 , Figure 3 and Figure 5 The grinding mechanism 4 also includes a protective housing 422 for providing external protection for the second servo motor 420. The protective housing 422 is sleeved and installed on the outside of the second servo motor 420, and the bottom of the protective housing 422 is fixedly connected to the bottom surface of the housing 1.

[0023] Support feet 104 are fixedly installed at the bottom corners of the housing 1. The top of the housing 1 has a feed inlet 101 and the bottom of the housing 1 has a discharge outlet 102. A sealing plate 103 is slidably connected inside the discharge outlet 102.

[0024] Through the above technical solutions, the protective shell 422 effectively protects the second servo motor 420 from powder erosion and mechanical damage, extending its service life; the support foot 104 provides stable support to ensure smooth operation of the equipment; the feed port 101 is used to feed in mine waste slag, the discharge port 102 is used to discharge the final powder, and the sealing plate 103 can control the opening and closing of the discharge port, facilitating powder collection and equipment maintenance.

[0025] Please see Figure 1 , Figure 2 and Figure 4 The inner wall of the housing 1 is provided with a drying mechanism 6 for drying powder, and the top of the housing 1 is provided with a dust collection mechanism 2 for dust suppression at the feed inlet 101. The drying mechanism 6 includes a hot air chamber 601 fixedly installed on the inner wall of the housing 1 and an exhaust fan 610 embedded on one side of the housing 1, and the hot air chamber 601 and the exhaust fan 610 are connected in a through manner.

[0026] The dust collection mechanism 2 includes a suction chamber 210 and a dustproof frame 201 fixedly installed on the top of the housing 1. The suction chamber 210 is fixedly installed on one side of the dustproof frame 201, and a suction window 202 communicating with the suction chamber 210 is opened on one side of the dustproof frame 201. A dust collection interface 211 is opened on the outside of the suction chamber 210.

[0027] Through the above technical solution, the drying mechanism 6 introduces external air into the hot air chamber 601 through the exhaust fan 610. The hot air chamber 601 is equipped with a heating element (such as an electric heating wire) to generate hot air to dry the powder in the housing 1 and prevent the powder from becoming damp and clumping. The dust collection mechanism 2 collects the dust generated at the feed inlet 101 through the suction window 202 and the suction chamber 210. The dust collection interface 211 can be connected to external dust removal equipment to effectively suppress dust dispersion and improve the working environment.

[0028] All electrical devices in this invention are powered by an external power source; Working principle and usage process: During use, first activate the dust collection mechanism 2 and the drying mechanism 6. The dust collection mechanism 2 continuously collects dust from the feed inlet 101 through the suction window 202 and suction chamber 210, suppressing dust diffusion. The drying mechanism 6 blows hot air into the housing 1 through the hot air chamber 601 and the induced draft fan 610, preheating the equipment and keeping the interior dry. Then, mine waste is fed into the feed inlet 101. The waste enters the crushing chamber 301 of the grading and crushing mechanism 3. The first servo motor 311 drives the multi-stage crushing rollers 302 to rotate through the gear transmission chamber 310, grading and crushing the waste from coarse to fine crushing. The crushed material falls to the grinding mechanism 4. The second servo motor 420 drives the grinding seat 401 and the grinding disc 410 to move relative to each other through the transmission shaft 421, further grinding the material to obtain fine powder. The ground powder falls into the collecting chamber 110 and passes through the grading and filtering mechanism 5. When the drive shaft 421 rotates, it drives the connecting ring block 530 and the jacking rod 531 to move. The damping jack periodically jacks the filter plate 520, causing it to vibrate. The powder undergoes grading and filtering through multiple sets of filter plates 520. Powder meeting the fineness requirements passes through the filter plates 520 and collects at the bottom of the collecting chamber 110. Unqualified coarse powder is retained and can be cleaned by sliding out the filter frame 510. Finally, the powder is discharged from the outlet 102, and the discharge speed is adjusted by controlling the sealing plate 103. Throughout the process, the drying mechanism 6 continuously operates to ensure the powder is dry, and the dust collection mechanism 2 maintains the cleanliness of the inlet, achieving efficient and environmentally friendly waste treatment.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding mill for treating mine waste, comprising a shell (1), wherein a collecting chamber (110) for collecting processed powder is provided on the inner wall of the bottom of the shell (1), characterized in that: A grading and crushing mechanism (3) for grading and crushing mine waste is fixedly installed on the inner wall of the top of the housing (1). A grinding mechanism (4) is provided at the bottom of the grading and crushing mechanism (3). A detachable grading and filtering mechanism (5) is installed inside the collecting cavity (110). The grinding mechanism (4) includes: A grinding seat (401) is fixed to the bottom of the grading and crushing mechanism (3); A grinding disc (410) is installed inside and cooperates with a grinding base (401); The second servo motor (420) is fixedly installed inside the collection cavity (110); A drive shaft (421) is fixedly installed at the output end of the second servo motor (420), and the top end of the drive shaft (421) is fixedly connected to the grinding seat (401). The graded filtration mechanism (5) includes: Through slots (501), multiple sets of through slots (501) are provided, and multiple sets of through slots (501) are symmetrically opened on both sides of the bottom of the shell (1); The filter frame (510) is provided in multiple sets, and the multiple sets of filter frames (510) are slidably connected to multiple sets of through slots (501) respectively, and the multiple sets of filter frames (510) are symmetrically arranged along the drive shaft (421). The filter plate (520) is provided in multiple sets, and the multiple sets of filter plates (520) are supported and placed on the bottom inner wall of multiple sets of filter frames (510). Connecting ring block (530), multiple sets of the connecting ring block (530) are provided, and multiple sets of the connecting ring block (530) are sleeved and fixed on the outer surface of the transmission shaft (421); A push rod (531) is fixedly installed on the outer surface of the connecting ring block (530), and a damping top block for pushing the filter plate (520) is fixedly installed at the outer end of the push rod (531).

2. The grinding mill for treating mine waste slag according to claim 1, characterized in that: The grading and crushing mechanism (3) includes a crushing chamber (301) and two sets of gear transmission chambers (310). The crushing chamber (301) is fixedly installed inside the housing (1), and the gear transmission chambers (310) are fixedly installed on one side of the top of the housing (1). The crushing chamber (301) has multiple crushing rollers (302) arranged in stages inside. The multiple crushing rollers (302) are respectively connected to the two sets of gear transmission chambers (310). The two sets of gear transmission chambers (310) are fixedly installed with a first servo motor (311) on the outside, and the output end of the first servo motor (311) is connected to the gear transmission chamber (310).

3. The grinding mill for treating mine waste slag according to claim 1, characterized in that: The grinding mechanism (4) also includes a protective housing (422) for providing external protection for the second servo motor (420). The protective housing (422) is sleeved and installed on the outside of the second servo motor (420), and the bottom of the protective housing (422) is fixedly connected to the bottom surface of the housing (1).

4. A grinding mill for treating mine waste slag according to claim 1, characterized in that: The graded filtration mechanism (5) further includes multiple sets of support blocks (502) for providing bottom support for the filter frame (510) and multiple sets of limiting blocks (511) for providing bottom support for the filter plate (520). The multiple sets of support blocks (502) are fixedly installed on the inner wall of the housing (1), and the multiple sets of limiting blocks (511) are fixedly installed at the bottom corner of the filter frame (510).

5. A grinding mill for treating mine waste slag according to claim 1, characterized in that: The bottom corner of the housing (1) is fixedly installed with support feet (104), the top of the housing (1) is provided with a feed inlet (101), and the bottom of the housing (1) is provided with a discharge outlet (102), and a sealing plate (103) is slidably connected inside the discharge outlet (102).

6. A grinding mill for treating mine waste slag according to claim 5, characterized in that: The inner wall of the housing (1) is provided with a drying mechanism (6) for drying powder, and the top of the housing (1) is provided with a dust collection mechanism (2) for dust suppression at the feed inlet (101). The drying mechanism (6) includes a hot air chamber (601) fixedly installed on the inner wall of the housing (1) and an exhaust fan (610) embedded on one side of the housing (1), and the hot air chamber (601) and the exhaust fan (610) are connected in a through connection.

7. A grinding mill for treating mine waste slag according to claim 6, characterized in that: The dust collection mechanism (2) includes a suction chamber (210) and a dustproof frame (201) fixedly installed on the top of the housing (1). The suction chamber (210) is fixedly installed on one side of the dustproof frame (201), and a suction window (202) communicating with the suction chamber (210) is opened on one side of the dustproof frame (201). A dust collection interface (211) is opened on the outside of the suction chamber (210).

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