Industrial waste residue recycling device and method

Abstract

The invention discloses an industrial waste residue recycling device and method, the device comprises a crushing mechanism, a mixer, a conveying pump, a separation mechanism, a granulator and a control system; the separation mechanism comprises a feed solenoid valve, a separation column perpendicular to the bottom surface and a drain pipe located at the top of the separation column, the upper part, the middle part and the bottom of the separation column are respectively equipped with a first photoelectric switch, a second photoelectric switch and a third photoelectric switch, and the bottom of the separation column is equipped with an electric gate valve; the crushing mechanism is connected to the mixer, and a conveying pump and a feed solenoid valve are sequentially connected between the mixer and the separation column, and the feed port of the separation column is lower than the second photoelectric switch; the control system is electrically connected to the conveying pump, the feed solenoid valve, the first photoelectric switch, the second photoelectric switch, the third photoelectric switch and the electric gate valve. The invention enables industrial waste residues to be recycled, fully exerts the economic value of industrial waste residues, and has low equipment cost, high degree of automation, and is suitable for mass production.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial waste residue recycling and reuse, and in particular to an industrial waste residue recycling and reuse device and method. Background Art

[0002] Industrial waste slag is one of the three wastes, including metallurgical waste slag, such as blast furnace slag, steel slag, various non-ferrous metal slag, ferroalloy slag, iron furnace slag, various dusts, sludge, etc., mining waste slag, such as mine stripping waste rock, excavation waste rock, coal gangue, ore dressing waste rock, washing waste rock, etc., fuel waste rock, such as coal slag, coal powder slag, shale ash, etc. At present, the commonly used treatment methods for industrial waste slag are incineration, landfill, chemical treatment, biological treatment, and ocean dumping. None of these methods make good use of industrial waste slag. Industrial waste slag is also a resource that is misplaced. Recycling and reusing industrial waste slag can bring great economic value.

[0003] In addition, the existing phosphating slag mostly uses chemical treatment methods or landfill methods. The chemical treatment method is very expensive and the landfill method does not fully bring out the economic value of the phosphating slag. Summary of the invention

[0004] The present invention provides an industrial waste residue recycling device and method to solve the problems existing in the background technology.

[0005] The technical solution adopted by the present invention is: an industrial waste residue recycling device, including a crushing mechanism, a mixer, a conveying pump, a separation mechanism, a granulator and a control system;

[0006] The separation mechanism includes a feed solenoid valve, a separation column perpendicular to the bottom surface, and a drain pipe located at the top of the separation column. The first photoelectric switch, the second photoelectric switch, and the third photoelectric switch are respectively installed at the top, middle, and bottom of the separation column, and an electric gate valve is installed at the bottom of the separation column;

[0007] The pulverizing mechanism is connected to the mixer, the delivery pump and the feed solenoid valve are connected in sequence between the mixer and the separation column, and the feed port of the separation column is lower than the second photoelectric switch;

[0008] The control system is electrically connected to the delivery pump, the feed solenoid valve, the first photoelectric switch, the second photoelectric switch, the third photoelectric switch, and the electric gate valve respectively.

[0009] Preferably, it further comprises a conveyor belt, wherein the conveyor belt is located directly below the separation column, and one end of the conveyor belt is located in the granulator.

[0010] Preferably, a water tank is further included, and the drain pipe is connected to the water tank.

[0011] Preferably, the separation mechanism has a plurality of members, an observation window is provided on the separation column, the separation column is 4 to 12 m high, and the feed port of the separation column is located at the upper 1 / 3 of the separation column.

[0012] Preferably, the pulverizing mechanism is seamlessly connected to the mixer.

[0013] The present invention also discloses a method for recycling industrial waste residues, which uses the above-mentioned industrial waste residue recycling device, and the method comprises the following steps:

[0014] Step 1: Place the industrial waste residue in a crushing mechanism and fully crush it into powder;

[0015] Step 2: Put the powdered industrial waste residue into a mixer, add water and mix thoroughly to form an industrial waste residue slurry;

[0016] Step 3, the industrial waste slurry is delivered to the middle of the separation column by a delivery pump, at which time the first photoelectric switch and the third photoelectric switch are in a closed state, and the second photoelectric switch is in an open state;

[0017] Step 4: When the second photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the first feeding;

[0018] Step 5: Perform the first standing;

[0019] Step 6, when the receiver of the second photoelectric switch detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve, and at the same time the first photoelectric switch is turned on, the industrial waste slurry slowly enters the separation column, thereby pushing the upper clear liquid into the water storage tank, and when the first photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the second feeding;

[0020] Step 7: Allow to stand for the second time;

[0021] Step 8, when the receiver of the first photoelectric switch detects the light signal emitted by the transmitter, the control system opens the electric gate valve, and at the same time the third photoelectric switch is turned on, the industrial waste slurry settles on the conveyor belt, and when the receiver of the third photoelectric switch detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve;

[0022] Step 9: The conveyor belt transports the unloaded industrial waste slurry to the granulator for granulation.

[0023] Preferably, in step 2, the water addition ratio is 1 to 3 times the mass of the industrial waste residue.

[0024] The present invention also provides a phosphating slag recycling device, which is characterized by comprising the above-mentioned industrial waste slag recycling device and an epoxy resin rubber cartridge.

[0025] The present invention also discloses a method for recycling phosphating slag, which uses the above-mentioned phosphating slag recycling device, and the method comprises the following steps:

[0026] Step 1: Place the industrial waste residue in a crushing mechanism and fully crush it into powder;

[0027] Step 2: Put the powdered industrial waste residue into a mixer, add water and mix thoroughly to form an industrial waste residue slurry;

[0028] Step 3, the industrial waste slurry is delivered to the middle of the separation column by a delivery pump, at which time the first photoelectric switch and the third photoelectric switch are in a closed state, and the second photoelectric switch is in an open state;

[0029] Step 4: When the second photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the first feeding;

[0030] Step 5: Let stand for the first time;

[0031] Step 6, when the receiver of the second photoelectric switch detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve, and at the same time the first photoelectric switch is turned on, the industrial waste slurry slowly enters the separation column, thereby pushing the upper clear liquid into the water storage tank, and when the first photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the second feeding;

[0032] Step 7: Allow to stand for the second time;

[0033] Step 8, when the receiver of the first photoelectric switch detects the light signal emitted by the transmitter, the control system opens the electric gate valve, and at the same time the third photoelectric switch is turned on, the industrial waste slurry settles on the conveyor belt, and when the receiver of the third photoelectric switch detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve;

[0034] Step 9: The conveyor belt transports the unloaded industrial waste slurry to the granulator for granulation, and the granules are placed in an epoxy resin cartridge for gluing.

[0035] Preferably, in step 2, the water addition ratio is 1 to 3 times the mass of the industrial waste residue.

[0036] The beneficial effects of the present invention are:

[0037] (1) The present invention allows industrial waste residues to be reused, thereby giving full play to the economic value of the industrial waste residues.

[0038] (2) The separation mechanism of the present invention washes away the soluble substances contained in the industrial waste slag, so that it can be better mixed with cement to complete granulation.

[0039] (3) The control system of the present invention controls multiple separation columns throughout the entire process, has a high degree of automation, is suitable for batch production, and has a wide range of applications.

[0040] (4) The device provided by the present invention performs solid-liquid separation by natural sedimentation, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The present invention discloses a schematic diagram of the structure of an industrial waste residue recovery and reuse device.

[0042] Figure numerals: 1. crushing mechanism; 2. mixer; 3. water inlet solenoid valve; 4. conveying pump; 5. separation column; 6. feed solenoid valve; 7. first photoelectric switch; 8. second photoelectric switch; 9. third photoelectric switch; 10. electric gate valve; 11. water storage tank; 12. conveyor belt; 13. granulator; 14. drain pipe. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0044] Embodiment 1:

[0045] See also Figure 1 , an industrial waste residue recycling and reuse device, including a crushing mechanism 1, a mixer 2, a conveying pump 4, a separation mechanism, a water storage tank 11, a conveyor belt 12, a granulator 13 and a control system.

[0046] Industrial waste residue is put into the crushing mechanism 1 and fully crushed into powder. The powder falls from the crushing mechanism 1 into the mixer 2. The mixer 2 is connected to the crushing mechanism 1 directly below, so that dust can be effectively reduced. Water is added to the mixer 2. The ratio of industrial waste residue to water is 1:1-3 (mass ratio). After fully stirring, it is transported to the separation mechanism through the delivery pump 4. The crushing mechanism 1 here can be one or more of a ball mill, a rod mill, and a crusher.

[0047] The separation mechanism is used to wash away the soluble substances contained in the industrial waste residue so that it can be better mixed with cement to complete granulation. The separation mechanism includes a feed solenoid valve 6, a separation column 5, and a drain pipe 14 located at the top of the separation column 5. The separation column 5 is a cylindrical tank body, 4 to 12 meters long, vertical to the ground, and has a long strip observation window. The upper, middle and bottom of the separation column 5 are respectively installed with a first photoelectric switch 7, a second photoelectric switch 8, and a third photoelectric switch 9. An electric gate valve 10 is installed at the bottom end face of the separation column 5, wherein the first photoelectric switch 7, the second photoelectric switch 8, and the third photoelectric switch 9 all include a transmitter, a light source receiver and a detection circuit. When an object blocks the light emitted by the transmitter, the receiver cannot receive the light emitted by the transmitter, and the detection circuit sends a signal. The control system is electrically connected to the delivery pump 4, the feed solenoid valve 6, the first photoelectric switch 7, the second photoelectric switch 8, the third photoelectric switch 9, and the electric gate valve 10. There are multiple separation mechanisms. The evenly stirred industrial waste slurry passes through the feed solenoid valve 6 and enters the middle of the separation column 5. The feed port of the separation column 5 is lower than the second photoelectric switch 8. Preferably, the feed port is located at the upper 1 / 3 of the separation column 5. When the industrial waste slurry reaches the second photoelectric switch 8, the turbid industrial waste slurry blocks the light source of the transmitter in the second photoelectric switch 8, resulting in the receiver not receiving the light signal. At this time, the second photoelectric switch 8 outputs a signal to the control system, and the control system closes the feed solenoid valve 6 after t seconds to complete the first feeding. Then, it is left to stand for the first time. After the slurry in the separation column 5 is clarified, the receiver in the second photoelectric switch 8 receives the light source emitted by the transmitter, and then outputs a signal to the control system. The control system opens the feed solenoid valve 6 and feeds the separation column 5 for the second time. The feeding process is very slow, so that the industrial waste slurry slowly discharges the upper layer of clear water upward through the drain pipe 14 to the water storage tank 11. Then, it is allowed to stand for the second time. When the turbid industrial waste slurry reaches the first photoelectric switch 7, the first photoelectric switch 7 outputs a signal to the control system. The control system closes the feed solenoid valve 6 after t seconds. When the first photoelectric switch 7 detects the light signal, it means that the upper layer of the industrial waste slurry has been clarified. At this time, the control system opens the electric gate valve 10, and the lower layer of sediment falls on the conveyor belt 12. When the upper clear liquid falls to the position of the third photoelectric switch 9, the receiver of the third photoelectric switch 9 receives the light signal. At this time, the control system controls the electric gate valve 10 to close. Then the control system opens the feed solenoid valve 6, repeats the first feeding, the first standing, the second feeding, the second standing, and the unloading process. Since there are multiple separation devices, the control system intelligently judges the current state of the separation column and then performs the corresponding operation. Preferably, the first photoelectric switch 7 is 0.4-0.8m away from the top of the separation column 5. Such a design is conducive to the industrial waste slurry not flowing into the water storage tank 11, and the industrial waste slurry has sufficient clarification height, so that the clarified liquid layer is not too thin, resulting in the industrial waste slurry not being completely clarified. Unloading begins.The third photoelectric switch 9 is 0.3-0.5m away from the bottom of the separation column 5. Such a design is conducive to controlling the falling height of the industrial waste slurry precipitation, which will neither cause the upper clear liquid to be unloaded nor cause the retained industrial waste slurry to precipitate too much. The reason why the device adopts the electric gate valve 10 is that the adhesion of the industrial waste slurry increases after precipitation, and only by adopting this fully open switch, it is not easy to be blocked. Preferably, the control system is a PLC control system.

[0048] The slurry falling on the conveyor belt 12 is conveyed to the granulator 13 by the conveyor belt 12, cement is added to the granulator 13, and the granulator 13 performs granulation. The granules made can be used as building fillers, such as fillers for making bricks.

[0049] The industrial waste here includes but is not limited to coal gangue, shale, stone powder, fly ash, slag, slag, and crushed stone.

[0050] It is worth noting that after removing the granulator 13, this device can also be used for starch preparation. Corn kernels, sweet potato chips, etc. are put into the crushing mechanism 1, and the mixer 2 stirs them into starch slurry. After entering the separation column 5, during the static process, the corn kernel husk floats on the upper layer and the starch sinks to the lower layer, thereby achieving the separation of the corn kernel husk.

[0051] Example 2

[0052] An industrial waste slag recycling and reuse device, the difference between this embodiment and embodiment 1 is that in this embodiment, a brick making machine is used instead of a granulator 13, and the precipitated industrial waste slag slurry is directly conveyed by a conveyor belt 12 to the brick making machine as a raw material for bricks.

[0053] Example 3

[0054] A phosphating slag recycling and reuse device, this embodiment includes an industrial waste slag recycling and reuse device of embodiment 1, and also includes an epoxy resin rubber cartridge. After the granulator 13 produces particles, the particles are placed in the epoxy resin rubber cartridge. After the particles are coated with glue, no harmful substances are released. After the glue is completely cured, it is used as a filler in the brick. Epoxy resin glue has good acid, alkali and corrosion resistance, and its stability is very high.

[0055] Example 4

[0056] A method for recycling industrial waste residues, which uses an industrial waste residue recycling device in Example 1, and the specific method is as follows:

[0057] Step 1, placing the industrial waste residue in the crushing mechanism 1 and crushing it into powder;

[0058] Step 2, putting the powdered industrial waste slag into the mixer 2, adding water and mixing thoroughly to form industrial waste slag slurry, the water addition ratio is 1 to 3 times the mass of the industrial waste slag;

[0059] Step 3, the industrial waste slurry is transported into the middle of the separation column 5 through the delivery pump 4, at which time the first photoelectric switch 7 and the third photoelectric switch 9 are in the closed state, and the second photoelectric switch 8 is in the open state;

[0060] Step 4: When the second photoelectric switch 8 detects the industrial waste slurry, the control system closes the feed solenoid valve 6 after t seconds to complete the first feeding;

[0061] Step 5: Let stand for the first time;

[0062] Step 6, when the receiver of the second photoelectric switch 8 detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve 6, and at the same time the first photoelectric switch 7 is turned on, the industrial waste slurry slowly enters the separation column 5, thereby pushing the upper clear liquid into the water storage tank 11 through the drain pipe 14, and when the first photoelectric switch 7 detects the industrial waste slurry, the control system closes the feed solenoid valve 6 after t seconds to complete the second feeding;

[0063] Step 7: Allow to stand for the second time;

[0064] Step 8, when the receiver of the first photoelectric switch 7 detects the light signal emitted by the transmitter, the control system opens the electric gate valve 10, and at the same time the third photoelectric switch 9 is turned on, the industrial waste slurry settles and falls on the conveyor belt 12, and when the receiver of the third photoelectric switch 9 detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve 10;

[0065] Step 9: The conveyor belt 12 transports the unloaded industrial waste slurry to a granulator or a brick-making machine for granulation or brick-making.

[0066] Example 5

[0067] A method for recycling phosphating slag, the method is completed by using a phosphating slag recycling device in Example 3, and comprises the following steps:

[0068] Step 1, placing the industrial waste residue in the crushing mechanism 1 and crushing it into powder;

[0069] Step 2, putting the powdered industrial waste slag into the mixer 2, adding water and mixing thoroughly to form industrial waste slag slurry, the water addition ratio is 1 to 3 times the mass of the industrial waste slag;

[0070] Step 3, the industrial waste slurry is transported into the middle of the separation column 5 through the delivery pump 4, at which time the first photoelectric switch 7 and the third photoelectric switch 9 are in the closed state, and the second photoelectric switch 8 is in the open state;

[0071] Step 4: When the second photoelectric switch 8 detects the industrial waste slurry, the control system closes the feed solenoid valve 6 after t seconds to complete the first feeding;

[0072] Step 5: Let stand for the first time;

[0073] Step 6, when the receiver of the second photoelectric switch 8 detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve 6, and at the same time the first photoelectric switch 7 is turned on, the industrial waste slurry slowly enters the separation column 5, thereby pushing the upper clear liquid into the water storage tank 11 through the drain pipe 14, and when the first photoelectric switch 7 detects the industrial waste slurry, the control system closes the feed solenoid valve 6 after t seconds to complete the second feeding;

[0074] Step 7: Allow to stand for the second time;

[0075] Step 8, when the receiver of the first photoelectric switch 7 detects the light signal emitted by the transmitter, the control system opens the electric gate valve 10, and at the same time the third photoelectric switch 9 is turned on, the industrial waste slurry settles and falls on the conveyor belt 12, and when the receiver of the third photoelectric switch 9 detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve 10;

[0076] Step 9: The conveyor belt 12 conveys the unloaded industrial waste slurry to the granulator for granulation. The granules are placed in an epoxy resin glue cylinder for gluing. After the glue is completely cured, they are used as fillers for bricks.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An industrial waste residue recycling device, characterized in that: It includes a crushing mechanism, a mixer, a conveying pump, a separation mechanism, a granulator, a conveyor belt, a water storage tank and a control system; The separation mechanism includes a feed solenoid valve, a separation column perpendicular to the bottom surface, and a drain pipe located at the top of the separation column. The first photoelectric switch, the second photoelectric switch, and the third photoelectric switch are respectively installed at the top, middle, and bottom of the separation column, and an electric gate valve is installed at the bottom of the separation column; The pulverizing mechanism is connected to the mixer, the delivery pump and the feed solenoid valve are connected in sequence between the mixer and the separation column, and the feed port of the separation column is lower than the second photoelectric switch; The control system is electrically connected to the delivery pump, the feed solenoid valve, the first photoelectric switch, the second photoelectric switch, the third photoelectric switch, and the electric gate valve respectively; The conveyor belt is located directly below the separation column, and one end of the conveyor belt is located in the granulator; The drainage pipe is connected to the water storage tank.

2. The industrial waste residue recycling device according to claim 1, characterized in that: The separation mechanism has multiple parts. An observation window is provided on the separation column. The separation column is 4 to 12 meters high. The feed port of the separation column is located at the upper 1 / 3 of the separation column.

3. The industrial waste residue recycling device according to claim 1, characterized in that: The pulverizing mechanism is seamlessly connected to the mixer.

4. A method for recycling industrial waste residues, characterized in that: Using an industrial waste residue recycling device as described in any one of claims 1 to 3, the method comprises the following steps: Step 1: Place the industrial waste residue in a crushing mechanism and fully crush it into powder; Step 2: Put the powdered industrial waste residue into a mixer, add water and mix thoroughly to form an industrial waste residue slurry; Step 3, the industrial waste slurry is delivered to the middle of the separation column by a delivery pump, at which time the first photoelectric switch and the third photoelectric switch are in a closed state, and the second photoelectric switch is in an open state; Step 4: When the second photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the first feeding; Step 5: Perform the first standing; Step 6, when the receiver of the second photoelectric switch detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve, and at the same time the first photoelectric switch is turned on, the industrial waste slurry slowly enters the separation column, thereby pushing the upper clear liquid into the water storage tank, and when the first photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the second feeding; Step 7: Allow to stand for the second time; Step 8, when the receiver of the first photoelectric switch detects the light signal emitted by the transmitter, the control system opens the electric gate valve, and at the same time the third photoelectric switch is turned on, the industrial waste slurry settles on the conveyor belt, and when the receiver of the third photoelectric switch detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve; Step 9: The conveyor belt transports the unloaded industrial waste slurry to the granulator for granulation.

5. The method for recycling industrial waste residue according to claim 4, characterized in that: In step 2, the water addition ratio is 1 to 3 times the mass of the industrial waste residue.

6. A phosphating slag recycling device, characterized in that: The industrial waste residue recycling and reuse device comprises the device as described in any one of claims 1 to 3, and also comprises an epoxy resin cartridge.

7. A method for recycling phosphating slag, characterized in that: Using the phosphating slag recycling device as claimed in claim 5, the method comprises the following steps: Step 1: Place the industrial waste residue in a crushing mechanism and fully crush it into powder; Step 2: Put the powdered industrial waste residue into a mixer, add water and mix thoroughly to form an industrial waste residue slurry; Step 3, the industrial waste slurry is delivered to the middle of the separation column by a delivery pump, at which time the first photoelectric switch and the third photoelectric switch are in a closed state, and the second photoelectric switch is in an open state; Step 4: When the second photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the first feeding; Step 5: Perform the first standing; Step 6, when the receiver of the second photoelectric switch detects the light signal emitted by the transmitter, the control system opens the feed solenoid valve, and at the same time the first photoelectric switch is turned on, the industrial waste slurry slowly enters the separation column, thereby pushing the upper clear liquid into the water storage tank, and when the first photoelectric switch detects the industrial waste slurry, the control system closes the feed solenoid valve after t seconds to complete the second feeding; Step 7: Allow to stand for the second time; Step 8, when the receiver of the first photoelectric switch detects the light signal emitted by the transmitter, the control system opens the electric gate valve, and at the same time the third photoelectric switch is turned on, the industrial waste slurry settles on the conveyor belt, and when the receiver of the third photoelectric switch detects the light signal emitted by the transmitter, the control system immediately closes the electric gate valve; Step 9: The conveyor belt transports the unloaded industrial waste slurry to the granulator for granulation, and the granules are placed in an epoxy resin cartridge for gluing.

8. The method for recycling phosphating slag according to claim 7, characterized in that: In step 2, the water addition ratio is 1 to 3 times the mass of the industrial waste residue.

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