An integrated device and method for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil.

Abstract

This invention relates to the field of experimental equipment technology, and discloses an integrated device and method for preparing an environmentally friendly ion collector for coal slime recovery using waste cooking oil. The purification device includes a solid impurity removal unit, an oil-water separation unit, and a micro-electric heating blower dryer. The oil-water separation unit is equipped with a retractable pipe, an adjusting handwheel, a circular metal plate, a drain pipe, a water-permeable membrane, and a flow stop switch. A micro-electric heating blower dryer is installed at the bottom of the purification device, and a receiving container with an open top is installed inside the micro-electric heating blower dryer. The reaction device includes a storage tank and a reaction vessel, and each storage tank is connected to the reaction vessel through a corresponding outlet pipe. The reaction device is connected to a stirring and grinding device through a product pipe at the bottom, and the stirring and grinding device includes a transmission device, a stirring column, and a micro-electric heating blower dryer. This invention improves the dispersion performance of the collector and the flotation selectivity of fine-grained coal slime by preparing the collector using waste cooking oil.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, specifically to an integrated device and method for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil. Background Technology

[0002] "Gutter oil" refers to various types of substandard oil used in daily life, mainly from three sources: first, greasy floating matter or swill in sewers; second, substandard pork by-products; and third, repeatedly used oil. These oils, after simple processing and refining, become gutter oil.

[0003] In recent years, the treatment and reuse of waste cooking oil has received widespread attention, and the use of waste cooking oil to prepare mineral processing reagents has broad prospects.

[0004] In the field of mineral separation, flotation is a crucial technology for recovering valuable components from coal slime. Coal slime flotation is generally related to the surface characteristics of the slime. Because coal slime contains a large amount of clay mineral impurities, traditional flotation processes have poor selectivity for fine-grained coal, making it difficult to simultaneously separate coarse and fine particles in a single step. Furthermore, traditional flotation processes often use diesel fuel as a collector. The strong hydrophobicity of diesel fuel makes it difficult for the collector to disperse in the flotation column, significantly reducing the probability of contact with coal slime particles. In addition, diesel fuel collectors suffer from high cost and complex preparation processes. Therefore, it is urgent to find a clean, efficient, high-quality, low-cost, and readily available reagent to replace diesel fuel collectors. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated device and method for preparing environmentally friendly ion collectors for coal slime recycling using waste cooking oil. By using waste cooking oil to prepare the collector, the dispersion performance of the collector is improved, the contact probability between the collector and coal slime particles is increased, and the flotation selectivity of fine-grained coal slime is improved through a purification device.

[0006] To achieve the above objectives, the present invention employs the following technical solution: An integrated device for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil includes a purification unit, a reaction unit, and a stirring and grinding unit. The integrated device is a vertical frame with three layers of partitions arranged from bottom to top. The partitions have holes for accommodating pipes connecting adjacent upper and lower layers. The purification unit is a cylindrical structure, including a solid impurity removal unit, an oil-water separation unit, and a micro-electric heating blower dryer. The solid impurity removal unit has a removable top cover, with a feed inlet on one side. A filter screen is installed within the solid impurity removal unit, and a vertically extending, retractable pipe is located below the filter screen plate. Below the filter screen is the oil-water separation unit, which includes the retractable pipe, an adjusting handwheel, a circular metal plate, a drain pipe, and a permeable duct. A membrane, a circular metal plate, is positioned a distance above a drain pipe. A water-permeable membrane is installed at the drain pipe opening. An adjusting handwheel is located on the outer wall of the purification device, situated above the circular metal plate. A miniature electric heating blower dryer is located at the bottom of the purification device, containing a receiving container with an open top. The reaction device includes a storage tank and a reaction vessel. The stirring and grinding device includes a transmission device, a stirring column, and the miniature electric heating blower dryer. The purification device and each storage tank are placed on the uppermost partition of the vertical frame. The reaction vessel is placed on the middle partition of the vertical frame. The receiving container in the purification device is connected to the reaction vessel via a discharge pipe, and each storage tank is connected to the reaction vessel via a corresponding discharge pipe. The stirring and grinding device is placed on the lowermost partition, and the reaction device is connected to the stirring and grinding device via a product pipe at the bottom.

[0007] Preferably, the solid impurity removal unit, the oil-water separation unit, and the micro electric heating blower dryer are equipped with flow stop element one, flow stop element two, and flow stop element three, and the outer wall of the purification device is equipped with flow stop switch one, flow stop switch two, and flow stop switch three corresponding to the flow stop elements.

[0008] Preferably, the storage tanks include an industrial concentrated sulfuric acid storage tank, a NaOH and KOH mixed solution storage tank, and an extractant storage tank. Each storage tank has scale lines drawn on its side wall, and the inner wall of each storage tank is coated with an acid and alkali resistant PVDF coating.

[0009] Preferably, each of the outlet pipes is equipped with a flow control unit, including a flow meter, a PID controller, and a regulating valve; the inner wall of each outlet pipe is coated with an acid and alkali resistant PVDF coating.

[0010] Preferably, the outer wall of the reactor is provided with three layers. The outermost layer is filled with heat insulation material, the next outermost layer is filled with electric heating tubes, water pipes and waste discharge pipes are connected to the side of the outer wall of the reactor, and temperature sensors and concentration sensors are provided inside the reactor.

[0011] Preferably, a speed sensor is installed inside the transmission device; the stirring column has a hollow structure, with a semi-permeable membrane covering the top and the air outlet of a micro electric heating blower connected to the bottom, and the drying time is adjusted by controlling the electric heating blower switch; the inner wall of the stirring and grinding device and the outer wall of the stirring column are both provided with uneven textures.

[0012] Preferably, the equipment controls each device through a central control console.

[0013] A method using the integrated equipment described above, wherein all flow stop switches are in the closed state, and waste cooking oil enters the purification device through the inlet. First, flow stop switch one is opened, and the waste cooking oil passes through the solid impurity removal unit to remove solid particles such as oil residue from the waste cooking oil. After the impurity removal is completed, flow stop switch one is closed; then it passes through the oil-water separation unit; oil-water separation is performed using a positive pressure method. First, flow stop switch two is opened, and the adjusting handwheel is rotated clockwise to extend the retractable pipe downwards, thereby pushing the circular metal plate downwards; the upper layer of the mixed liquid is oil. The lower layer is water. Under positive pressure, the lower water layer flows out through the permeable membrane and drain pipe. Oil cannot pass through the permeable membrane. The separated crude oil enters the micro electric heating blower dryer. At this time, the second stop switch is closed. The crude oil that has undergone preliminary impurity removal enters the micro electric heating blower dryer for drying. The third stop switch is opened, and the dried crude oil enters the reaction device through the discharge pipe. The crude oil reacts in the reactor for a period of time. Water and non-saponified products are discharged through the water pipe and waste pipe. The saponified products enter the stirring and grinding device through the product pipe for drying and grinding.

[0014] The beneficial effects of this invention are: This invention discloses an integrated device and method for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil. Compared with traditional recycling processes, this invention improves the flotation selectivity of fine-grained coal slime through solid impurity removal and oil-water separation; it reduces the specific surface area of ​​the coal slime through a stirring and grinding device, thereby reducing particle agglomeration and further improving the flotation selectivity of fine-grained coal slime; by using waste cooking oil to prepare the collector, the dispersion performance of the collector is improved, increasing the contact probability between the collector and coal slime particles, ultimately optimizing the flotation performance. Furthermore, the integrated device has a high degree of automation and can precisely control various parameters in the separation process, greatly improving operational efficiency and facilitating industrialization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the purification apparatus of the present invention; Figure 2 This is a schematic diagram of the inner structure of the stirring and grinding device of the present invention; Figure 3 This is a schematic diagram of the overall structure of the integrated device of the present invention; In the diagram, 1 – purification device; 2 – feed inlet; 3 – removable top cover; 4 – filter screen; 5 – telescopic pipe; 6 – adjusting handwheel; 7 – flow stop device one; 9 – drain pipe; 10 – electric heating blower switch; 11 – miniature electric heating blower dryer; 12 – stirring and grinding device; 13 – stirring column; 14 – industrial concentrated sulfuric acid storage tank; 15 – NaOH and KOH mixed solution storage tank; 16 – extractant storage tank; 17 – flow control unit; 18 – reaction device; 19 – product pipe; 20 – reaction vessel; 21 – flow stop device two; 22 – flow stop device three; 23 – flow stop switch one; 24 – flow stop switch two; 25 – flow stop switch three. Detailed Implementation

[0016] The invention will be further described below with reference to the accompanying drawings. An integrated device for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil includes a purification device 1, a reaction device 18, and a stirring and grinding device 12. The integrated device is a vertical frame with three layers of partitions arranged from bottom to top. The partitions have holes for placing pipes connecting adjacent upper and lower layers. The purification device 1 is a cylindrical structure, including a solid impurity removal unit, an oil-water separation unit, and a micro-electric heating blower dryer 11. The top of the solid impurity removal unit is equipped with a removable top cover 3, and a feed inlet 2 is provided on one side of the top cover. A filter screen 4 is provided in the solid impurity removal unit, and a vertically downward retractable pipe 5 is provided at the lower end of the filter screen plate containing the filter screen 4. Below the filter screen 4 is the oil-water separation unit, which includes the retractable pipe 5, an adjusting handwheel 6, a circular metal plate, a drain pipe 9, and a permeable membrane. A water-permeable membrane is installed at the opening of the drain pipe 9, which is located a distance above the drain pipe 9. The adjusting handwheel 6 is located on the outer wall of the purification device 1, which is located above the circular metal plate. A miniature electric heating blower dryer 11 is installed at the bottom of the purification device 1, and a receiving container with an open top is installed inside the miniature electric heating blower dryer 11. The reaction device includes a storage tank and a reaction vessel 20. The stirring and grinding device 12 includes a transmission device, a stirring column 13, and the miniature electric heating blower dryer 11. The purification device 1 and each storage tank are placed on the uppermost partition of the vertical frame. The reaction vessel 20 is placed on the middle partition of the vertical frame. The receiving container in the purification device 1 is connected to the reaction vessel 20 through the discharge pipe. Each storage tank is connected to the reaction vessel 20 through a corresponding discharge pipe. The stirring and grinding device 12 is placed on the lowermost partition. The reaction device 18 is connected to the stirring and grinding device 12 through the product pipe at the bottom. The solid impurity removal unit, oil-water separation unit, and micro electric heating blower dryer are equipped with flow-stopping components 7, 21, and 22. Corresponding flow-stopping switches 23, 24, and 25 are installed on the outer wall of the purification device 1. The storage tanks include an industrial concentrated sulfuric acid storage tank 14, a NaOH and KOH mixed solution storage tank 15, and an extractant storage tank 16. Each storage tank has graduation lines drawn on its side wall, and its inner wall is coated with acid- and alkali-resistant PVDF paint. Each outlet pipe is equipped with a flow control unit 17, including a flow meter, a PID controller, and a regulating valve; the inner wall of the outlet pipe is also coated with acid- and alkali-resistant PVDF paint. The outer wall of the reactor 20 is provided with three layers. The outermost layer is filled with heat insulation material, and the next outermost layer is filled with electric heating tubes. Water pipes and waste discharge pipes are connected to the side of the outer wall of the reactor 20 for water intake and discharge of non-saponification products, respectively. Temperature sensors and concentration sensors are installed inside the reactor 20 to ensure that the sulfonation and saponification reactions in the reactor 20 proceed to the maximum extent. A product pipe is provided at the bottom of the reactor 20.A speed sensor is installed inside the transmission device; the stirring column 13 has a hollow structure, with a semi-permeable membrane covering the top and the air outlet of the micro electric heating blower dryer 11 connected to the bottom, and the drying time is adjusted by controlling the electric heating blower switch; the inner wall of the stirring and grinding device 12 and the outer wall of the stirring column 13 are both provided with uneven textures. The equipment is controlled by a main control console.

[0017] A method using the integrated equipment described above, wherein all flow stop switches are in the closed state, and waste cooking oil enters the purification device 1 through the inlet. First, flow stop switch 7 is opened, and the waste cooking oil passes through the solid impurity removal unit to remove solid particles such as oil residue from the waste cooking oil. After the impurity removal is completed, flow stop switch 7 is closed; then it passes through the oil-water separation unit; oil-water separation is performed using a positive pressure method. First, flow stop switch 21 is opened, and the adjusting handwheel 6 is rotated clockwise to extend the telescopic pipe 5 downward, thereby pushing the circular metal plate downward; the upper layer of the mixed liquid is oil, and the lower layer is... Water, under positive pressure, flows out of the drain pipe through the permeable membrane in the lower water layer. Oil cannot pass through the permeable membrane. The separated crude oil enters the micro electric heating blower dryer 11. At this time, the flow stop switch 22 is closed. The crude oil that has undergone preliminary impurity removal enters the micro electric heating blower dryer 11 for drying. The flow stop switch 3 23 is opened. The dried crude oil enters the reaction device 18 through the discharge pipe. The crude oil reacts in the reaction vessel 20 for a period of time. Water and non-saponified products are discharged through the water pipe and the waste pipe. The saponified products enter the stirring and grinding device 12 through the product pipe for drying and grinding.

[0018] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An integrated device for preparing an environmentally friendly ion collector for coal slime recycling using waste cooking oil, comprising a purification device, a reaction device, and a stirring and grinding device, characterized in that, The integrated equipment is a vertical frame with three layers of partitions arranged from bottom to top. The partitions have holes for accommodating pipes connecting adjacent upper and lower layers. The purification device is a cylindrical structure, including a solid impurity removal unit, an oil-water separation unit, and a miniature electric heating blower dryer. The solid impurity removal unit has a removable top cover, with a feed inlet on one side. A filter screen is installed within the solid impurity removal unit, and a vertically extending, retractable pipe is located below the filter screen plate and above a circular metal plate. Below the filter screen is the oil-water separation unit, which includes the retractable pipe, an adjusting handwheel, a circular metal plate, a drain pipe, and a permeable membrane. The circular metal plate is positioned a distance above the drain pipe, and the drain pipe opening is equipped with... A water-permeable membrane is used. An adjusting handwheel is located on the outer wall of the purification device, situated above a circular metal plate. Rotating the handwheel clockwise extends the retractable pipe downwards. A miniature electric heating blower is installed at the bottom of the purification device, containing a receiving container with an open top. The reaction device includes a storage tank and a reaction vessel. The stirring and grinding device includes a transmission device, a stirring column, and the miniature electric heating blower. The purification device and each storage tank are placed on the uppermost partition of the vertical frame. The reaction vessel is placed on the middle partition of the vertical frame. The receiving container in the purification device is connected to the reaction vessel via a discharge pipe, and each storage tank is connected to the reaction vessel via a corresponding discharge pipe. The stirring and grinding device is placed on the lowermost partition, and the reaction device is connected to the stirring and grinding device via a product pipe at the bottom. The transmission device is equipped with a speed sensor; the stirring column has a hollow structure, with a semi-permeable membrane covering the top and the air outlet of a micro electric heating blower connected to the bottom, and the drying time can be adjusted by controlling the electric heating blower switch; the inner wall of the stirring and grinding device and the outer wall of the stirring column are both provided with uneven textures. The solid impurity removal unit, oil-water separation unit and micro electric heating blower dryer are equipped with flow stopper 1, flow stopper 2 and flow stopper 3, and the outer wall of the purification device is equipped with flow stop switch 1, flow stop switch 2 and flow stop switch 3 corresponding to the flow stopper; The storage tanks include an industrial concentrated sulfuric acid storage tank, a NaOH and KOH mixed solution storage tank, and an extractant storage tank. Each storage tank has scale lines drawn on its side wall, and the inner wall of each storage tank is coated with acid and alkali resistant PVDF coating. Each outlet pipe is equipped with a flow control unit, including a flow meter, a PID controller, and a regulating valve; the inner wall of the outlet pipe is coated with acid and alkali resistant PVDF coating. The outer wall of the reactor is provided with three layers. The outermost layer is filled with thermal insulation material, the next outermost layer is filled with electric heating tubes, and the side of the outer wall of the reactor is connected to a water pipe and a waste discharge pipe. The interior of the reactor is equipped with a temperature sensor and a concentration sensor. The equipment controls each device through a central control console; Waste cooking oil enters the purification device through the feed inlet. After passing through the solid impurity removal unit, solid particles are removed. After the impurity removal is completed, the oil and water are separated by the oil-water separation unit. The separated crude oil enters the micro electric heating blower dryer for drying. The dried crude oil enters the reaction device through the discharge pipe.

2. A method of using the integrated device as described in claim 1, characterized in that, All flow stop switches are in the closed state. Waste cooking oil enters the purification device through the inlet. First, flow stop switch one is opened, and the waste cooking oil passes through the solid impurity removal unit to remove solid particles of oil residue. After impurity removal, flow stop switch one is closed. Then, it passes through the oil-water separation unit. Oil-water separation is performed using positive pressure. First, flow stop switch two is opened, and the adjustable handwheel is rotated clockwise to extend the retractable pipe downwards, thus pushing the circular metal plate downwards. In the mixed liquid, the upper layer is oil and the lower layer is water. Under positive pressure, the lower water layer flows out through the permeable membrane and drain pipe, while the oil cannot pass through the permeable membrane. The separated crude oil enters the micro electric heating blower dryer. At this time, flow stop switch two is closed. The crude oil, after preliminary impurity removal, enters the micro electric heating blower dryer for drying. Flow stop switch three is opened, and the dried crude oil enters the reaction device through the discharge pipe. The crude oil reacts in the reactor for a period of time, and water and non-saponified products are discharged through the water pipe and waste pipe. The saponified products enter the stirring and grinding device through the product pipe for drying and grinding.

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