Environment-friendly stone machining equipment and method

Abstract

The environment-friendly stone machining equipment comprises a machining cabin, a sliding cutting assembly, a machining table, a dust collection hole and a water flow recycling system are arranged in the machining cabin, an air filtering box and a circulating water tank are arranged, and waste water purification and recycling are achieved. The processing method comprises the steps of stone pretreatment, 3D scanning, cutting and waste water and waste material treatment, high-pressure water mist dust falling and cutting knife synchronous operation are adopted in the cutting process, meanwhile, waste water is subjected to multi-stage filtering and recycling, and waste material mineralization and recycling are conducted. Dust and waste water discharge is effectively reduced, the machining precision and the resource utilization rate are improved, and remarkable environmental protection and economic benefits are achieved.

Description

Technical Field

[0001] The present invention relates to the field of stone processing, and particularly to an environment-friendly stone processing equipment and method. Background Art

[0002] In recent years, with the rapid development of industries such as architectural decoration and stone carving, stone processing has gradually become an indispensable part of the national economy. However, there are many problems in the actual production process of traditional stone processing technologies and equipment, especially the deficiencies in environmental protection and resource utilization are becoming increasingly prominent.

[0003] Existing stone processing equipment generally adopts processes such as mechanical cutting and grinding. When working, it will generate a large amount of fine dust and stone chips. These particles not only pose a potential threat to the health of operators, but also cause serious pollution to the surrounding environment. In addition, traditional processes rely mainly on simple dust collection systems or local dust reduction measures for dust reduction treatment, and cannot fundamentally curb the spread of dust, resulting in the air quality in the workshop remaining unsatisfactory for a long time.

[0004] At the same time, a large amount of water mist is used in the stone processing process for cooling and assisting in dust reduction, but the resulting wastewater discharge problem cannot be ignored either. The direct discharge of a large amount of untreated wastewater not only wastes precious water resources, but may also contain fine particles and chemical substances, posing a potential hazard to the water environment. Existing wastewater recycling technologies are mostly limited to simple filtration treatment, and it is difficult to achieve efficient water quality purification and recycling.

[0005] In addition, problems such as internal cracks and defects existing in the stone itself often lead to safety hazards and quality fluctuations during the processing process. Traditional processing methods lack real-time detection and precise planning of the internal structure of the stone, often resulting in problems such as material breakage and uneven cutting during the cutting process, further exacerbating resource waste and increasing processing costs. In terms of waste treatment, existing technologies have not effectively realized the resource utilization of stone waste residues. In most cases, they are only simply disposed of or landfilled as waste, and their potential reuse value has not been exploited.

[0006] Therefore, there is an urgent need for a new type of environment-friendly stone processing equipment and its processing method that integrates efficient cutting, intelligent dust reduction, wastewater recycling, and waste material regeneration and utilization to solve the problems of environmental pollution, resource waste, and insufficient processing accuracy existing in the prior art. By introducing 3D scanning, intelligent path planning, high-pressure water mist dust suppression, and multi-stage filtration technologies, not only can the emissions of dust and wastewater during the processing process be greatly reduced, effectively protecting the environment, but also the processing accuracy and product quality can be improved, realizing the recycling of resources and the improvement of economic benefits. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an environmentally friendly stone processing equipment and method.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: An environmentally friendly stone processing equipment and method of the present invention includes an equipment main body, and the following are provided inside the equipment main body; A processing chamber for stone cutting and processing. Inside the processing chamber, there are a cutting assembly, a processing table, dust suction holes and a water flow recovery assembly. The cutting assembly is slidably installed on the linear lead screw and the guide rail. A connecting water pipe is installed at the top end of the cutting assembly, and a spray head and a cutting tool are installed at the bottom end of the cutting assembly; An air treatment box for filtering air. The air treatment box is installed at the top end of the processing chamber. The air treatment box is communicated with the dust suction holes, and an air filtering assembly is provided inside the air treatment box; A circulating water tank for filtering water flow to realize the recycling of water. The circulating water tank is installed at the top end of the processing chamber. The circulating water tank is connected to the water flow recovery assembly. The water flow recovery assembly includes a filter screen, a water pump and a recovery water pipe.

[0009] As a preferred technical solution of the present invention, the cutting assembly is used to drive the cutting tool to slide on the linear lead screw. A motor is installed inside the cutting assembly. The spray head is connected to the circulating water tank through the connecting water pipe, and a centrifugal filtration module is provided inside the circulating water tank.

[0010] As a preferred technical solution of the present invention, the filter screen adopts a bio-based filter screen, the rotation speed of the centrifugal filtration module is 3000 - 5000 rpm, and the filtration accuracy is 5 - 10 μm.

[0011] As a preferred technical solution of the present invention, a high-pressure water mist dust suppression device is installed inside the spray head, and the water pressure range of the high-pressure water mist dust suppression device is 10 - 20 MPa, and the droplet diameter is 50 - 100 μm.

[0012] An environmentally friendly stone processing method includes the following steps: Step 1: Pretreat the stone to be processed. Immerse the stone in a composite bio-enzyme solution and ultrasonically assist in cleaning for 30 minutes; Step 2: After rinsing, activate the surface with low-temperature plasma (power 200 W, process for 5 minutes) to enhance the adhesion in subsequent processing; Step 3: Place the stone to be processed on the processing table, generate an internal crack map of the stone through 3D scanning, and plan the processing route through the generated map to avoid the defective area; Step 4: The cutting knife and the high-pressure water mist dust suppression device are used for synchronous cutting. The water mist pressure and the cutting speed are dynamically matched, and the matching formula is P = 0.1v + 8 (P is the water pressure / MPa, v is the cutting speed / mm / s). Step 5: The wastewater generated by cutting is concentrated at the bottom of the processing chamber. Stone particles are isolated through a filter screen, and the wastewater is recycled to the inside of the circulation water tank through a water pump, and the wastewater is filtered through a centrifugal filtration module. Step 6: The isolated stone waste chips are concentrated inside the processing chamber and recycled through collection.

[0013] The following steps are also included: mixing stone powder with concentrated liquid, inoculating Bacillus pasteurii (concentration 10 8 CFU / g), mineralizing at 35°C for 7 days to generate calcium carbonate-based recycled stone (compressive strength ≥ 30 MPa). After the large waste materials are crushed, special-shaped building components are made through 3D printing (stone powder: epoxy resin = 7:3).

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The equipment of the present invention integrates an efficient air filtration, water flow recycling and waste material recycling system, which can greatly reduce the dust and wastewater emissions during the processing, and effectively improve the workshop and surrounding environment. 2. The present invention uses 3D scanning technology to detect internal defects of stones, and combines intelligent path planning to ensure that the cutting process avoids the defective areas, reducing material waste and damage caused by improper cutting. At the same time, the synchronous operation and dynamic matching of the high-pressure water mist and the cutting knife further improve the cutting accuracy and efficiency. 3. The wastewater is recycled for the processing process after multi-stage filtration, which not only reduces the water use cost, but also effectively reduces environmental pollution. At the same time, the stone waste chips are mineralized and recycled through 3D printing, greatly improving the utilization rate of waste materials and realizing the double benefits of economy and environmental protection. Description of the Drawings

[0015] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of a device; Figure 2 is a partial structural sectional view of a device; Figure 3 is a step flow chart of a method; In the figure: 1. Equipment main body; 2. Circulation water tank; 201. Connecting water pipe; 3. Processing chamber; 301. Linear lead screw; 302. Guide rail; 303. Cutting assembly; 304. Sprayer; 305. Cutting tool; 306. Processing table; 307. Filter screen; 308. Water pump; 309. Recycling water pipe; 310. Dust suction hole; 4. Air treatment box. Specific embodiments

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] Among them, the same reference numerals in the drawings all refer to the same components.

[0018] As Figure 1 and Figure 2 shown, the present invention provides an environment-friendly stone processing equipment, including an equipment main body 1, and the interior of the equipment main body 1 is provided with; A processing chamber 3 for stone cutting and processing. Inside the processing chamber 3, there are arranged a cutting assembly 303, a processing table 306, a dust suction hole 310 and a water flow recycling assembly. The cutting assembly 303 is slidably installed on the linear lead screw 301 and the guide rail 302. At the top end of the cutting assembly 303, a connecting water pipe 201 is installed. At the bottom end of the cutting assembly 303, a sprayer 304 and a cutting tool 305 are installed; An air treatment box 4 for filtering air. The air treatment box 4 is installed at the top end of the processing chamber 3. The air treatment box 4 is communicated with the dust suction hole 310. Inside the air treatment box 4, an air filtering assembly is arranged; A circulation water tank 2 for filtering water flow to realize the recycling of water. The circulation water tank 2 is installed at the top end of the processing chamber 3. The circulation water tank 2 is connected with the water flow recycling assembly. The water flow recycling assembly includes a filter screen 307, a water pump 308 and a recycling water pipe 309.

[0019] Furthermore, the cutting assembly 303 is used to drive the cutting tool 305 to slide on the linear lead screw 301. A motor is installed inside the cutting assembly 303. The sprayer 304 is connected with the circulation water tank 2 through the connecting water pipe 201. An centrifugal filtration module is arranged inside the circulation water tank 2.

[0020] In this embodiment, a processing chamber 3 is provided inside the equipment main body 1, and this processing chamber 3 is specifically used for stone cutting and processing. Inside the processing chamber 3, a cutting assembly 303, a processing table 306, dust suction holes 310, and a water flow recovery assembly are arranged. The processing table 306 is used to fix and support the stone to be processed, while the dust suction holes 310 are used to introduce the dust generated during the processing into the subsequent treatment system. The cutting assembly 303 is slidably installed on the linear lead screw 301 and the guide rail 302 to ensure that the cutting tool 305 moves smoothly along a predetermined path. A motor is provided inside the cutting assembly 303, and by driving the linear lead screw 301, the cutting tool 305 is accurately positioned. A connecting water pipe 201 is installed at the top end of the cutting assembly 303 for connecting to the subsequent high-pressure water mist dust suppression system; at the bottom end, a spray head 304 and a cutting tool 305 are fixed, and the two work together to achieve synchronous cutting and dust reduction.

[0021] Furthermore, the filter screen 307 adopts a bio-based filter screen, the rotational speed of the centrifugal filtration module is 3000 - 5000 rpm, and the filtration accuracy is 5 - 10 μm. A high-pressure water mist dust suppression device is installed inside the spray head 304, and the water pressure range of the high-pressure water mist dust suppression device is 10 - 20 MPa, and the droplet size of the mist is 50 - 100 μm.

[0022] In this embodiment, a high-pressure water mist dust suppression device is integrated inside the spray head 304, and its working water pressure range is set at 10 - 20 MPa, and it can generate fine mist with a droplet size of 50 - 100 μm. This design can not only cool the equipment and the stone during the cutting process, but also quickly suppress the scattered dust and reduce the risk of environmental pollution.

[0023] The air treatment box 4 is installed on the top of the processing chamber 3 and is connected to the dust suction holes 310. An air filtration assembly is provided inside, which can effectively capture and filter the dust entering the box, and the purified air is then discharged to improve the air quality in the workshop.

[0024] The circulating water tank 2 is also installed on the top of the processing chamber 3, and its main function is to filter and recycle the wastewater generated during the processing. The water flow recovery assembly includes a filter screen 307, a water pump 308, and a recovery water pipe 309. The filter screen 307 adopts a bio-based filter screen, which is beneficial to environmental friendliness; at the same time, a centrifugal filtration module is also integrated inside the circulating water tank 2, and the working rotational speed is set at 3000 - 5000 rpm, and the filtration accuracy can reach 5 - 10 μm, ensuring that the recovered water quality meets the standard for secondary utilization.

[0025] As Figure 3 shown, an environment-friendly stone processing method includes the following steps: 1. Pretreat the stone to be processed by soaking it in a composite bio - enzyme solution and using ultrasonic assistance for cleaning for 30 minutes. The composite bio - enzyme is generally prepared by mixing cellulase and protease in a ratio of 3:1 and acting in a 40°C solution, effectively removing the oil stains and impurities on the stone surface and providing a clean surface condition for subsequent processing.

[0026] 2. After cleaning, rinse the stone, and then use low - temperature plasma to activate the stone surface. The plasma power is set to 200W and the treatment time is 5 minutes. This step can improve the activity of the stone surface, enhance the adhesion of the cutting tool 305 during processing, and improve the processing accuracy and cutting efficiency.

[0027] 3. Place the pretreated and activated stone on the processing table 306, obtain the crack and defect data inside the stone through a 3D scanner, and generate a three - dimensional map. Plan the processing route according to the generated map to avoid the defective areas inside the stone, ensure reducing the risk of breakage during cutting, and improve the finished product quality.

[0028] 4. When starting the cutting operation, the cutting tool 305 and the high - pressure water mist dust suppression device are started simultaneously and work together. The water mist pressure is dynamically matched with the cutting speed, and the matching formula is: P = 0.1v + 8, where P is the water pressure in MPa and v is the cutting speed in mm / s. This matching strategy ensures that the best cutting and dust suppression effects can be maintained at different processing speeds, ensuring both the stone processing accuracy and the real - time suppression of dust generation.

[0029] 5. The wastewater generated during cutting is centrally collected at the bottom of the processing chamber 3. First, the wastewater is preliminarily filtered through a filter screen 307 to isolate larger - particle stone waste chips; then the wastewater is sent to the circulation water tank 2 by a water pump 308, and the fine particles in the water are finely filtered by an internal centrifugal filtration module, making the recycled water quality meet the secondary utilization standard, thus realizing the recycling of water resources and reducing the waste of water resources in the processing process.

[0030] 6. The stone waste chips generated during cutting are centrally collected inside the processing chamber 3. This step includes the following sub - processes: Mix the recycled stone powder with the concentrated liquid and inoculate Bacillus pasteurii at a concentration of about 10 8 CFU / g, and carry out mineralization treatment at 35°C for 7 days to generate calcium carbonate - based recycled stone with a compressive strength of not less than 30MPa; For large waste materials, first carry out crushing treatment, and then use 3D printing technology to mix the crushed stone powder and epoxy resin in a ratio of 7:3 to make special - shaped building components. This treatment method not only realizes the harmless treatment of waste materials, but also improves the added value of materials and realizes the resource utilization of waste materials.

[0031] The present invention relates to an environment-friendly stone processing equipment and method. By integrating efficient cutting, dust reduction, waste water recycling and waste material regeneration technologies, it realizes significant reduction of dust and waste water emissions during the stone processing. Meanwhile, it uses 3D scanning and intelligent path planning to accurately avoid internal defects of the stone, thus improving the processing accuracy and product quality. In addition, through innovative processes such as high-pressure water mist dust suppression, bio-based filters and centrifugal filtration, it effectively realizes resource recycling and energy consumption reduction, reduces environmental pollution and production costs, and fully embodies remarkable environmental, economic and social benefits.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly stone processing equipment, characterized in that: The device comprises a device body (1), wherein the device body (1) is provided with: A processing cabin (3) is used for stone cutting processing. A cutting assembly (303), a processing table (306), a dust suction hole (310) and a water flow recovery assembly are arranged inside the processing cabin (3). The cutting assembly (303) is slidably mounted on the linear screw (301) and the guide rail (302). A connecting water pipe (201) is mounted on the top end of the cutting assembly (303). A nozzle (304) and a cutting knife (305) are mounted on the bottom end of the cutting assembly (303). an air processing box (4) for filtering air, the air processing box (4) being mounted on the top of the processing chamber (3), the air processing box (4) being in communication with the dust suction hole (310), and an air filtering assembly being arranged inside the air processing box (4); A circulating water tank (2) is used to filter water flow to achieve water recycling. The circulating water tank (2) is installed at the top of the processing chamber (3). The circulating water tank (2) is connected to the water flow recycling component. The water flow recycling component includes a filter screen (307), a water pump (308) and a water recovery pipe (309).

2. The environmentally friendly stone processing equipment according to claim 1, characterized in that: The cutting assembly (303) is used to drive the cutting knife (305) to slide on the linear screw rod (301), and a motor is installed inside the cutting assembly (303). The nozzle (304) is connected to the circulating water tank (2) via the connecting water pipe (201), and a centrifugal filter module is arranged inside the circulating water tank (2).

3. The environmentally friendly stone processing equipment according to claim 2, characterized in that: The filter screen (307) is a bio-based filter screen, the rotation speed of the centrifugal filter module is 3000-5000 rpm, and the filtering accuracy is 5-10 μm.

4. The environmentally friendly stone processing equipment according to claim 1, characterized in that: A high-pressure water mist dust suppression device is installed inside the nozzle (304); the water pressure range of the high-pressure water mist dust suppression device is 10-20 MPa, and the droplet diameter is 50-100 μm.

5. An environmentally friendly stone processing method, characterized in that: The process of processing stone using the processing equipment according to any one of claims 1 to 4 comprises the following steps: Step 1: Pre-treat the stone to be processed by soaking it in a solution containing a composite biological enzyme and performing ultrasonic-assisted cleaning for 30 minutes; Step 2: After rinsing, use low-temperature plasma (power 200W, treatment for 5 minutes) to activate the surface and enhance the adhesion of subsequent processing; Step 3: placing the stone to be processed on the processing table (306), generating a crack map inside the stone through 3D scanning, and planning a processing route based on the generated map to avoid defective areas; Step 4: using the cutting knife (305) and the high-pressure water mist dust suppression device to cut synchronously, the cutting knife (305) and the high-pressure water mist dust suppression device to cut synchronously, the water mist pressure and the cutting speed are dynamically matched, and the matching formula is P=0.1v+8 (P is the water pressure / MPa, v is the cutting speed / mm / s); Step 5: The waste water generated by cutting is collected at the bottom of the processing chamber (3), the stone particles are isolated by the filter (307), the waste water is recovered to the inside of the circulating water tank (2) through the water pump (308), and the waste water is filtered by the centrifugal filter module; Step 6: The isolated stone waste is concentrated inside the processing chamber (3) and collected for recycling.

6. The environmentally friendly stone processing method according to claim 5, characterized in that: The biological enzymes are cellulase and protease in a 40°C solution at a ratio of 3:

1.

7. The environmentally friendly stone processing method according to claim 5, characterized in that: Step 6 also includes the following steps: mixing the stone powder with the concentrated solution, inoculating Bacillus pasteurianus (concentration 10 8 CFU / g), and mineralized at 35℃ for 7 days to generate calcium carbonate-based recycled stone (compressive strength ≥30MPa). After the large pieces of waste were crushed, they were made into special-shaped building components through 3D printing (stone powder: epoxy resin = 7:3).

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