Steel ball grinding iron mud draining treatment device and method

Abstract

The invention discloses a steel ball grinding iron mud draining treatment device, and belongs to the technical field of steel ball grinding, the iron mud draining treatment device comprises a draining box, a ground rail truss vehicle is erected outside the draining box, a plurality of supporting frames are arranged in the draining box at equal intervals, sieve plates are laid on the supporting frames, the draining box is divided into an upper cavity and a lower cavity through the sieve plates, and the upper cavity and the lower cavity are communicated with each other. Wherein the upper cavity is a balling pool, the lower cavity is a filtrate placing pool, a plurality of extrusion cones are uniformly arranged on the sieve plate, flow guide grooves are circumferentially formed in the surfaces of the extrusion cones, and the tips of the extrusion cones are polished into spherical structures. The extrusion cone is arranged on the sieve plate, when a cloth bag containing iron mud is placed on the sieve plate, the extrusion cone abuts against the bottom of the cloth bag to enable the cloth bag to be suspended, the cloth bag is prevented from being tightly attached to the sieve plate, grinding liquid can permeate to the outside of the cloth more quickly, and meanwhile the flow guide grooves in the surface of the extrusion cone utilize the capillary effect and gravity to create a drainage channel; concentrated outflow of water is accelerated, and the draining efficiency is further improved.

Description

Technical Field

[0001] This invention belongs to the field of steel ball grinding technology, specifically a steel ball grinding iron sludge filtration and drying device and method. Background Technology

[0002] During the manufacturing process of steel balls, grinding is required to improve their roundness. To prevent the surface of the steel balls from being burned by the heat generated during grinding, the surface must be continuously rinsed with sodium nitrite rust-inhibiting solution. Since the grinding sludge is not easily dissolved, it mostly settles at the bottom of the grinding fluid tank. When workers clean the grinding sludge from the bottom of the tank, because it resembles mud in a pond, it is usually dumped into a large sludge pool using a small cart. Once the pool is full, an excavator is used to scoop it into the cargo bed of a large truck for transport. Due to the high water content of the grinding sludge, leaks frequently occur during transportation, sometimes resulting in penalties from environmental protection departments.

[0003] Chinese invention patent CN117531260A discloses a calcium propionate filter mud recycling device, which optimizes the setup of the calcium propionate filter mud recycling device, changes the traditional sedimentation method, designs a single-layer filter screen to scoop up the calcium propionate filter mud, and then performs simple water filtration. The single-layer filter screen can also be used as a drying carrier, which improves the sedimentation efficiency and is suitable for widespread use.

[0004] In existing technologies, sludge is usually placed inside a cloth bag for static filtration. However, when the cloth bag is placed directly on a flat screen, the contact area between the bottom of the cloth bag and the screen is large. The water in the sludge needs to permeate through the cloth bag and then drain out through the gap between the cloth and the screen. However, the weight of the cloth bag itself will compact the sludge at the bottom. In addition, the cloth and the screen are tightly attached, which can easily form a "sealing layer". This makes it difficult for water to quickly permeate to the outside of the cloth. Even if it does permeate, it may accumulate between the cloth and the screen due to the large contact area and cannot drip off in time, resulting in low drainage efficiency. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0007] A steel ball grinding and filtration device for iron sludge includes a draining tank with a ground rail gantry mounted on its exterior. Multiple support frames are evenly spaced inside the draining tank, and a sieve plate is laid on each support frame. The draining tank is divided into upper and lower cavities by the sieve plate. The upper cavity is a sludge-filled pool, and the lower cavity is a filtrate-holding pool. One end of the draining tank is connected to an iron sludge collection pool. Multiple sets of partition grooves are symmetrically arranged inside the sludge-filled pool, with each set of partition grooves corresponding to a support frame. The end of the sieve plate has a fitting groove adapted to the partition grooves, and a partition plate is inserted into each set of partition grooves. The sludge-filled pool is evenly divided into multiple placement chambers by the partition plates. Multiple extrusion cones are evenly arranged on the sieve plate. When a cloth bag containing iron sludge is placed on the sieve plate, the extrusion cones press against the bottom of the cloth bag, suspending it and preventing the cloth bag from tightly adhering to the sieve plate, thus preventing the grinding liquid from failing to quickly penetrate to the outside of the cloth.

[0008] Preferably, the surface of the extrusion cone is provided with a circumferential guide groove, and the tip of the extrusion cone is ground into a spherical structure. When the cloth bag is placed on the screen plate and is pressed against by the extrusion cone, the guide groove on the extrusion cone creates a drainage channel. By utilizing the combined effects of capillary effect and gravity, the water forms a concentrated flow in the groove.

[0009] Preferably, the height of the iron sludge collection tank is lower than the height of the filtrate placement tank, and a rectangular hole is opened on the outside of the drain box to connect with the inside of the iron sludge collection tank. The iron sludge collection tank has a built-in sludge pump, and the output end of the sludge pump is connected to a pipeline.

[0010] Preferably, a sealing plate is provided on the support frame near the iron sludge collection tank in the filtrate placement tank, and a sludge chamber for collecting grinding liquid is formed between the sealing plate and the end of the drain box, and the sludge chamber is connected to the iron sludge collection tank through a rectangular hole.

[0011] Preferably, a hole is provided near the bottom of the sealing plate, and a connecting pipe is fixedly inserted into the hole. The connecting pipe has a U-shaped structure, with one end located in the sedimentation chamber and the other end located in the filtrate placement tank. The height of the connecting pipe at one end of the sedimentation chamber is greater than the height of the other end.

[0012] Preferably, the upper part of the filtrate placement tank is provided with a guide plate, which is inclined and extends to the top of the sedimentation chamber. The guide plate has flanges on both sides, which are welded to the support frame. The sludge water drained from the screen plate flows into the sedimentation chamber through the guide plate for sedimentation. The settled water overflows into the filtrate placement tank through the connecting pipe. A water pump is installed in the filtrate placement tank.

[0013] Preferably, the ground rail gantry includes a truss and a hoisting vehicle. The truss consists of a set of symmetrical truss arms and crossbars at both ends. A track groove is provided on the upper surface of the truss arms. The hoisting vehicle consists of a mounting plate and a winch installed on its upper surface. Each of the four corners of the mounting plate is provided with a traveling wheel, which is placed in the track groove. One set of traveling wheels is connected to a drive unit via a short axle.

[0014] Preferably, the winch includes a motor, a reducer, and a winch roller, wherein the drive end of the motor is connected to the input end of the reducer, the output end of the reducer is connected to the shaft of the winch roller, a cable is wound on the winch roller, and a hook is connected to the end of the cable.

[0015] Based on the above technical solution, this application also provides a method for drying iron sludge by grinding with steel balls, the steps of which are as follows: Step 1, Preparation: Place the cloth bag containing steel balls for grinding iron sludge onto the sieve plate inside the drain box using a ground rail gantry. The extrusion cone presses against the bottom of the cloth bag to suspend it in the air, and the ground rail gantry is ready to go. Step 2, Preliminary Drainage: Under the action of gravity, the grinding liquid in the iron mud permeates through the sieve plate into the filtrate placement tank, and the flow channel on the surface of the squeezing cone uses capillary effect and gravity to accelerate the concentrated outflow of water. Step 3, Grinding liquid sedimentation and circulation: The sludge water drained from the screen plate flows into the sedimentation chamber through the guide plate for sedimentation. The settled water overflows into the filtrate placement tank through the connecting pipe. Turning on the water pump in the filtrate placement tank allows for the recycling or discharge of the treated filtrate. Step 4, hoisting operation: Start the ground rail gantry crane and hoist the filtered mud bags using the winch.

[0016] In step 3, the sludge that settles in the settling chamber from the grinding fluid is pumped out and discharged centrally by a sludge pump.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting an extrusion cone on the screen plate, when the cloth bag containing iron mud is placed on the screen plate, the extrusion cone touches the bottom of the cloth bag to suspend it, avoiding the cloth bag from sticking tightly to the screen plate, which allows the grinding liquid to penetrate to the outside of the cloth more quickly. At the same time, the guide groove on the surface of the extrusion cone uses capillary effect and gravity to create a drainage channel, accelerate the concentrated outflow of water, and further improve the drainage efficiency.

[0018] (2) The present invention sets up a guide plate and a sedimentation chamber in the filtrate placement tank. The sludge water drained from the screen plate flows into the sedimentation chamber through the guide plate for sedimentation. The sedimented water overflows into the filtrate placement tank through the connecting pipe, which can effectively separate the impurities in the grinding liquid and improve the quality of the filtrate. Furthermore, the height of the iron sludge collection tank is lower than that of the filtrate placement tank and is connected to it. It has a built-in sludge pump, which makes it easy to extract and discharge the sludge settled in the sedimentation chamber and the iron sludge after the mud bag is dried, making the whole process more continuous and efficient.

[0019] (3) The present invention uses a ground rail gantry to hoist the cloth bag, which is simple in structure and easy to operate. It can conveniently place the cloth bag containing steel balls grinding iron mud on the screen plate in the drain box, and hoist the mud bag after filtering, thus improving work efficiency. Attached Figure Description

[0020] Figure 1 This is an assembly diagram of the iron sludge filtration and drying equipment and its hoisting mechanism in this invention.

[0021] Figure 2 This is a structural diagram of the iron sludge filtration and drying equipment in this invention.

[0022] Figure 3 This is a diagram of the internal structure of the iron sludge filtration and drying equipment in this invention.

[0023] Figure 4 This is a top view of the iron sludge filtration and drying equipment in this invention.

[0024] Figure 5 This is a front view of the internal structure of the iron sludge filtration and drying equipment in this invention.

[0025] Figure 6 This is a structural diagram of the sieve plate in this invention.

[0026] Figure 7 This is an enlarged view of the extrusion cone in Figure A of this invention.

[0027] Figure 8 This is a structural diagram of the ground-rail gantry in this invention.

[0028] Figure 9 This is a schematic diagram of the winch structure in this invention.

[0029] The correspondence between the labels and component names in the attached figures is as follows: 100. Drainage tank; 100a. Filtrate placement tank; 100b. Sedimentation chamber; 100c. Sludge bag tank; 101. Support frame; 102. Screen plate; 102a. Fitting groove; 1021. Extrusion cone; 103. Separation groove; 104. Separation plate; 105. Iron sludge collection tank; 1051. Sludge pump; 106. Connecting pipe; 107. Water pump; 108. Guide plate; 200. Ground rail gantry; 201. Truss; 202. Lifting vehicle; 2021. Mounting plate; 2022. Driver; 2023. Traveling wheel; 2024. Motor; 2025. Reducer; 2026. Winching roller; 2027. Hook. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0033] Example 1 like Figure 1 The diagram shown is a schematic of the overall structure of the device in this embodiment. The steel ball grinding iron sludge filtration and drying device in this embodiment mainly consists of two parts: a drain box 100 and a ground rail gantry 200. The two work together to achieve efficient filtration and drying of the iron sludge generated during the steel ball grinding process. The drain box 100 is welded from high-strength stainless steel and has a rectangular structure. The length is designed according to the iron sludge output of the production line to ensure structural stability and corrosion resistance.

[0034] See Figure 2-4 The diagram below shows the internal cavity and support structure of the drain box in this embodiment: Multiple support frames 101 are equidistantly arranged inside the drain box 100. These support frames 101 act as a sturdy skeleton, providing support for the entire internal structure of the drain box. A sieve plate 102 is laid on the support frames 101, clearly dividing the drain box 100 into two distinct cavities. The upper cavity is designed as a mud-bag pool 100c, used to hold a cloth bag containing iron mud; the lower cavity is a filtrate placement pool 100a, receiving the filtrate drained from the mud bag. Furthermore, multiple sets of partition grooves 103 are symmetrically distributed within the mud-bag pool 100c, each set corresponding to... A corresponding support frame 101 makes the internal structure layout of the device more reasonable and facilitates the subsequent zoning treatment of iron sludge. The end of the screen plate 102 is carefully opened with a fitting groove 102a that matches the partition groove 103, ensuring that the partition groove 103 and the screen plate 102 fit tightly and are firmly connected. On each set of partition grooves 103, partition plates 104 can be flexibly inserted, so that the sludge pool 100c is evenly divided into multiple independent placement chambers. The advantage of this partition design is that iron sludge from different sources or with different characteristics can be placed separately to avoid mutual interference, and it also facilitates the subsequent targeted treatment of iron sludge in each placement chamber.

[0035] See Figure 6 and Figure 7This is a schematic diagram of the extrusion cone structure in this embodiment. In this embodiment, multiple extrusion cones 1021 are evenly distributed on the sieve plate 102. When the cloth bag containing iron sludge is placed on the sieve plate 102, the extrusion cones 1021 will abut against the bottom of the cloth bag, suspending the cloth bag and preventing the cloth bag from sticking tightly to the sieve plate 102. Once it sticks tightly, it is difficult for the grinding fluid to quickly penetrate to the outside of the cloth bag. In addition, the surface of the extrusion cone 1021 is provided with a circumferential guide groove. When the cloth bag is placed on the sieve plate 102 and is abutted by the extrusion cone 1021, the guide groove on the extrusion cone 1021 will create a drainage channel. Utilizing the combined effect of capillary effect and gravity, the water forms a concentrated water flow in the groove, thereby greatly accelerating the drainage speed of water in the iron sludge. The tip of the extrusion cone 1021 is ground into a spherical structure to avoid being too sharp and puncturing the cloth bag.

[0036] See Figure 5 This is a structural diagram of the internal structure of the draining tank in this embodiment. In this embodiment, a sealing plate is provided on the support frame 101 near the iron sludge collection tank 105 inside the filtrate placement tank 100a. A sedimentation chamber 100b is formed between the sealing plate and the end of the draining tank 100. The sedimentation chamber 100b is used to collect sediment from the grinding fluid. The sedimentation chamber 100b is connected to the iron sludge collection tank 105 through a rectangular hole to facilitate the transfer of sediment. A hole is provided on the sealing plate near the bottom, and the hole is solidified. A connecting pipe 106 is fixedly connected. The connecting pipe 106 has a U-shaped structure, with one end located in the sedimentation chamber 100b and the other end located in the filtrate placement tank 100a. The height of the end in the sedimentation chamber 100b is greater than the height of the other end. This design utilizes the principle of communicating vessels and the liquid level difference, allowing the settled water to overflow into the filtrate placement tank 100a through the connecting pipe 106. A guide plate 108 is also provided at the upper part of the filtrate placement tank 100a. The guide plate 108 is inclined. The sieve plate 102 is inclined, with its lower inclined end extending above the sedimentation chamber 100b. It has flanges on both sides, which are welded to the support frame 101. The sludge water drained from the sieve plate 102 flows into the sedimentation chamber 100b along the guide plate 108 for sedimentation, effectively improving the quality of the filtrate. A water pump 107 is also installed in the filtrate placement tank 100a for subsequent transport or discharge of the treated filtrate. Furthermore, the iron sludge collection tank is connected to an iron sludge collection tank 105 at one end of the draining tank 100. The height of the iron sludge collection tank 105 is intentionally designed to be lower than the height of the filtrate placement tank 100a, and a rectangular hole is opened on the outside of the draining tank 100 to communicate with the interior of the iron sludge collection tank 105. This height difference and communication design facilitate the natural flow of iron sludge into the iron sludge collection tank 105 under gravity. The iron sludge collection tank 105 has a built-in sludge pump 1051, and the output end of the sludge pump 1051 is connected to a pipe for further processing or transfer of the collected iron sludge.

[0037] See Figure 8 and Figure 9The diagram shown is a schematic of the ground rail gantry structure in this embodiment. The ground rail gantry 200 in this embodiment includes a truss 201 and a hoisting vehicle 202. The truss 201 consists of a set of symmetrical truss arms and crossbars at both ends, forming a large frame structure that provides a running track for the hoisting vehicle 202. Track grooves are formed on the upper surface of the truss arms. The hoisting vehicle 202 consists of a mounting plate 2021 and a winch mounted on its upper surface. Each of the four corners of the mounting plate 2021 is provided with a traveling wheel 2023, which is placed in the track groove and can run smoothly along the track groove. One set of traveling wheels 2023 is connected to a driver 20 via a short axle. 22. To provide power for the movement of the hoisting vehicle 202, the winch includes a motor 2024, a reducer 2025, and a winch roller 2026. The drive end of the motor 2024 is connected to the input end of the reducer 2025, and the output end of the reducer 2025 is connected to the shaft of the winch roller 2026. A cable is wound on the winch roller 2026, and a hook 2027 is connected to the end of the cable. The motor 2024 drives the reducer 2025, which in turn drives the winch roller 2026 to rotate, thereby realizing the winding and unwinding of the cable. The hook 2027 can be used to conveniently lift heavy objects such as cloth bags containing iron sludge, realizing convenient transfer and placement of iron sludge.

[0038] Example 2 Based on the technical solutions of the above embodiments, this application also provides a method for filtering and drying iron sludge by grinding with steel balls, the steps of which are as follows: Step 1, Preparation: Before the steel ball grinding and iron sludge filtration process, first ensure that the dewatering box 100, iron sludge collection tank 105, and ground rail gantry 200 are all in normal working condition. Check that the support frame 101, screen plate 102, partition groove 103, partition plate 104, and other components are securely installed, that the extrusion cone 1021 is intact, and that the connecting pipe 106, guide plate 108, and other components are unobstructed. Simultaneously, start the sludge pump 1051, water pump 107, and the driver 2022 and motor 2024 of the ground rail gantry 200 for trial operation to ensure that all equipment is operating normally. Then, use the ground rail gantry 200... 0. The cloth bag containing iron sludge produced by grinding steel balls is hoisted and transported. The hoisting vehicle 202 is driven by the driver 2022 to move along the track groove of the truss 201 to a suitable position. The motor 2024 of the winch drives the reducer 2025 to make the winch roller 2026 rotate, and the cable is wound up and down. The hook 2027 is hung on the cloth bag, and then the cloth bag is hoisted into the mud bag pool 100c of the drain box 100. According to the placement cavity divided by the partition groove 103 and the partition plate 104, the cloth bag is placed properly on the screen plate 102 so that the bottom of the cloth bag is in full contact with the extrusion cone 1021. The extrusion cone 1021 abuts against the bottom of the cloth bag to suspend it in the air, and the iron sludge filtration process begins. Step 2, Preliminary Drainage: As time goes by, the water in the sludge, under the action of gravity and the capillary effect of the squeezing cone 1021 guide channel, passes through the cloth bag and screen plate 102 and flows into the filtrate placement tank 100a. The drained sludge water first passes through the guide plate 108 and flows into the sludge chamber 100b for sedimentation. The settled water overflows into the filtrate placement tank 100a through the connecting pipe 106. During this process, the water pump 107 in the filtrate placement tank 100a can be started in time according to actual needs to transport the treated filtrate to a designated location for further treatment or discharge. Step 3, Grinding liquid sedimentation and circulation: After the iron sludge in the sludge tank 100c is filtered dry for a certain period of time, since the height of the iron sludge collection tank 105 is lower than the height of the filtrate placement tank 100a, and the drain tank 100 is connected to the iron sludge collection tank 105 through a rectangular hole, the iron sludge flows naturally into the iron sludge collection tank 105 under the action of gravity. The sludge pump 1051 in the iron sludge collection tank 105 is started, and the collected iron sludge is transported to the next processing step through the connected pipeline, such as recycling or proper environmental protection treatment. Step 4, hoisting operation: After completing one iron mud filtration and drying process, the above steps can be repeated. The ground rail gantry 200 is used to hoist a new cloth bag containing iron mud to the drain box 100 for filtration and drying. This realizes the cyclical operation of steel ball grinding and iron mud filtration and drying, and improves the efficiency of the entire process.

[0039] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to this description. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A steel ball grinding iron sludge filtration and drying device, comprising a drain box (100), a ground rail gantry (200) is mounted on the outside of the drain box (100), a plurality of support frames (101) are equidistantly arranged inside the drain box (100), and a sieve plate (102) is laid on the support frames (101). The drain box (100) is divided into upper and lower cavities by the sieve plate (102), wherein the upper cavity is a sludge packing pool (100c) and the lower cavity is a filtrate placement pool (100a). Its features are: One end of the drain box (100) is connected to an iron mud collection pool (105). The mud bag pool (100c) is symmetrically provided with multiple sets of partition grooves (103), and each set of partition grooves (103) corresponds to a support frame (101). The end of the sieve plate (102) is provided with a fitting groove (102a) that is adapted to the partition grooves (103). A partition plate (104) is inserted into each set of partition grooves (103). The mud bag pool (100c) is divided into multiple placement chambers by the partition plates (104). Multiple extrusion cones (1021) are evenly provided on the sieve plate (102). When the cloth bag containing iron mud is placed on the sieve plate (102), the extrusion cones (1021) abut against the bottom of the cloth bag to suspend it, preventing the cloth bag from being tightly attached to the sieve plate (102) and avoiding the grinding liquid from being difficult to quickly penetrate to the outside of the cloth.

2. The steel ball grinding and iron sludge filtering and drying device according to claim 1, characterized in that: The surface of the extrusion cone (1021) is provided with a circumferential guide groove, and the tip of the extrusion cone (1021) is ground into a spherical structure. When the cloth bag is placed on the sieve plate (102) and is pressed against by the extrusion cone (1021), the guide groove on the extrusion cone (1021) creates a drainage channel. By utilizing the combined effects of capillary effect and gravity, the water forms a concentrated flow in the groove.

3. The steel ball grinding and iron sludge filtering and drying device according to claim 1, characterized in that: The height of the iron sludge collection tank (105) is lower than the height of the filtrate placement tank (100a), and the outside of the drain box (100) is provided with a rectangular hole that connects to the inside of the iron sludge collection tank (105). The iron sludge collection tank (105) has a built-in sludge pump (1051), and the output end of the sludge pump (1051) is connected to a pipe.

4. The steel ball grinding and iron sludge filtering and drying device according to claim 3, characterized in that: A sealing plate is provided on the support frame (101) of the filtrate placement tank (100a) near the iron sludge collection tank (105), and a sludge chamber (100b) for collecting grinding liquid is formed between the sealing plate and the end of the drain box (100), and the sludge chamber (100b) is connected to the iron sludge collection tank (105) through a rectangular hole.

5. The steel ball grinding and iron sludge filtering and drying device according to claim 4, characterized in that: The sealing plate has a hole near the bottom, and a connecting pipe (106) is fixedly inserted into the hole. The connecting pipe (106) has a U-shaped structure, with one end located in the sedimentation chamber (100b) and the other end located in the filtrate placement tank (100a). The height of the connecting pipe (106) at one end of the sedimentation chamber (100b) is greater than the height of the other end.

6. The steel ball grinding and iron sludge filtering and drying device according to claim 5, characterized in that: The upper part of the filtrate placement tank (100a) is provided with a guide plate (108), and the guide plate (108) is inclined. The lower inclined end of the guide plate (108) extends to the top of the sedimentation chamber (100b). The guide plate (108) has flanges on both sides, which are welded to the support frame (101). The sludge water drained from the screen plate (102) flows into the sedimentation chamber (100b) through the guide plate (108) for sedimentation. The sedimented water overflows into the filtrate placement tank (100a) through the connecting pipe (106). A water pump (107) is installed in the filtrate placement tank (100a).

7. The steel ball grinding and iron sludge filtering and drying device according to claim 1, characterized in that: The ground rail gantry (200) includes a truss (201) and a hoisting vehicle (202). The truss (201) consists of a set of symmetrical truss arms and crossbars at both ends. A track groove is provided on the upper surface of the truss arms. The hoisting vehicle (202) consists of a mounting plate (2021) and a winch provided on its upper surface. Each of the four corners of the mounting plate (2021) is provided with a traveling wheel (2023), and the traveling wheel (2023) is placed in the track groove. One set of traveling wheels (2023) is connected to a driver (2022) through a short shaft.

8. The steel ball grinding and iron sludge filtering and drying device according to claim 7, characterized in that: The winch includes a motor (2024), a reducer (2025), and a winch roller (2026). The drive end of the motor (2024) is connected to the input end of the reducer (2025), and the output end of the reducer (2025) is connected to the shaft of the winch roller (2026). A cable is wound on the winch roller (2026), and a hook (2027) is connected to the end of the cable.

9. A method for filtering and drying iron sludge by grinding with steel balls, comprising using the steel ball grinding and drying apparatus as described in any one of claims 1-8, characterized in that, The steps are as follows: Step 1, preparation: Place the cloth bag containing steel balls for grinding iron sludge on the screen plate (102) inside the drain box (100) using the ground rail gantry (200), and suspend the cloth bag by pressing the bottom of the extrusion cone (1021). The ground rail gantry (200) is ready. Step 2, preliminary drainage: Under the action of gravity, the grinding liquid in the iron mud permeates through the sieve plate (102) into the filtrate placement tank (100a), and the guide groove on the surface of the extrusion cone (1021) uses capillary effect and gravity to accelerate the concentrated outflow of water; Step 3, Grinding liquid sedimentation and circulation: The sludge water drained from the sieve plate (102) flows into the sedimentation chamber (100b) through the guide plate (108) for sedimentation. The settled water overflows into the filtrate placement tank (100a) through the connecting pipe (106). The water pump (107) in the filtrate placement tank (100a) can be turned on to recycle or discharge the treated filtrate. Step 4, hoisting operation: Start the ground rail gantry (200) and hoist the filtered mud bag by the winch.

10. The method for treating iron sludge by grinding with steel balls according to claim 9, characterized in that: In step 3, the sludge that settles in the sludge chamber (100b) from the grinding fluid is pumped out and discharged centrally by the sludge pump (1051).

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