Shaped activated carbon preparation equipment

Abstract

The utility model provides shaped activated carbon preparation equipment which comprises an activating furnace containing a flue gas collecting pipe, the flue gas collecting pipe is communicated with a heater, a gas outlet of the heater is communicated with flue gas reaction equipment, part of hot water and an adhesive of the heater are introduced into a batcher according to a preset proportion, and the batcher is communicated with a mixing device through a batching pipe; a material inlet of the material mixing device is connected with a material outlet of the activation furnace; a discharge port of the mixing device is connected with the cake making machine, a pressing block at one end of a piston of a cake making drive of the cake making machine is in clearance connection with the inner wall of the cake making barrel, and an exhaust hole is formed in the pressing block; an outlet of the cake making machine is communicated with the forming equipment; the forming box comprises a first section and a second section, the first section comprises a feeding groove, the T-shaped pressing column reciprocates between the first section and the second section, a detachable base is arranged outside the second section, a cutter mechanism is arranged outside the base, and a material box is arranged under the base. According to the utility model, the density uniformity of activated carbon is improved, and the energy utilization rate of activated carbon preparation equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of activated carbon production technology, specifically to a shaped activated carbon preparation device. Background Technology

[0002] Activation of activated carbon involves creating new pores in the activated carbon product through physical or chemical methods. Activated activated carbon has a higher adsorption capacity than unactivated carbon. Existing activated carbon products include activated carbon powder, amorphous activated carbon, and shaped activated carbon. Shaped activated carbon requires the activated carbon powder to be mixed with a binder and then extruded into shape in specific equipment. After shaping, it is cut to a preset size and then dried, packaged, and other processes to finally produce qualified shaped activated carbon.

[0003] Existing activated carbon activation treatment generally uses an activation furnace. The heat generated during the activation process is usually discharged along with the flue gas. The density of the extruded columnar activated carbon is uneven, and there are many burrs on the cut surface. The energy utilization rate of the processing equipment is low. Utility Model Content

[0004] This invention proposes a shaped activated carbon preparation device to solve the technical problems of uneven activated carbon density and low overall energy utilization rate of existing shaped activated carbon processing equipment in the aforementioned background art.

[0005] The technical solution of this utility model is as follows:

[0006] A shaped activated carbon preparation device includes an activation furnace. The upper end of the activation furnace includes a flue gas collection pipe connected to a heater. The outlet of the heater is connected to a flue gas reaction device. A portion of the hot water and binder from the heater are fed into a batching device according to a preset ratio. The batching device is connected to a mixing device via a batching pipe. The inlet of the mixing device is connected to the outlet of the activation furnace. The mixing device contains a spiral stirring rod, and a motor is connected to drive the spiral stirring rod. The outlet of the mixing device is connected to a cake-making machine. The cake-making machine includes a cake-making drum and a cake-making drive... The pressure block at one end of the piston is gap-connected to the inner wall of the cake-making barrel, and the pressure block is provided with an exhaust hole; the outlet of the cake-making machine is connected to the forming equipment, which includes a forming box and a T-shaped pressure column. The forming box is horizontally placed on the frame. The forming box includes a first section and a second section. The first section includes a feeding trough. The T-shaped pressure column reciprocates between the first section and the second section. The second section includes a base that is detachably connected to the box body of the forming box. A cutting mechanism is provided outside the base. A material box is provided directly below the base. The material box includes a turntable with a frustum structure. A motor drives the turntable to rotate.

[0007] Optionally, the heater includes: multiple rows of spaced aluminum tubes, a filter screen disposed at the air inlet of the heater, a water pump, and a water storage tank, wherein the inlet and outlet of the water pump are respectively connected to the water storage tank and the aluminum tubes.

[0008] Optionally, the bottom of the feeder includes fan-shaped blades, and the motor is connected to the fan-shaped blades via a connecting seat; the molding device includes a cylinder, and the cylinder is connected to the T-shaped pressure column.

[0009] Optionally, PTC battery cells are attached to the outer wall of the molding box.

[0010] Optionally, the cutting mechanism includes a first cutter and a second cutter disposed opposite to each other, the second cutter being connected to a cylinder to move closer to or away from the first cutter.

[0011] Optionally, the adhesive is tar or starch.

[0012] The beneficial effects of this utility model are as follows:

[0013] Firstly, the waste heat of the flue gas in the activation furnace is exchanged in the heater, so that this part of the heat is utilized. After the flue gas is deheated and cooled, it is then processed by the flue gas reaction equipment, thereby realizing the effective utilization of the waste heat of the flue gas and reducing the difficulty of treating overheated flue gas. In addition, the hot water in the heater is mixed with the binder and reused, which improves the energy utilization rate of the activated carbon preparation equipment.

[0014] Secondly, by forming the carbon powder into a shaped cake before extruding it into shaped activated carbon, air bubbles can be effectively released, thus avoiding defects such as incompletely shaped carbon powder in the produced shaped activated carbon rod and improving the uniformity of activated carbon density. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a shaped activated carbon preparation device provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the cutting mechanism in an embodiment of the present invention.

[0017] In the diagram: 1. Activation furnace; 11. Flue gas collection pipe; 2. Heater; 3. Flue gas reaction equipment; 4. Batching device; 41. Batching pipe; 5. Mixing device; 6. Piece making machine; 61. Pressing block; 7. Forming equipment; 71. Forming box; 72. Feed trough; 73. PCT battery cell; 8. Base; 9. Material box; 10. Turntable; 12. Cutting mechanism; 121. First cutter; 122. Second cutter. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Activation of activated carbon involves creating new pores in the activated carbon product through physical or chemical methods. Activated activated carbon exhibits superior adsorption capacity compared to unactivated carbon. Existing activated carbon products include activated carbon powder, amorphous activated carbon, and shaped activated carbon. Shaped activated carbon requires the activated carbon powder to be mixed with a binder and then extruded into shape using specific equipment. After shaping, it is cut to a preset size and then dried, packaged, and other processes to finally produce qualified shaped activated carbon. Current activated carbon activation processes generally employ activation furnaces (1), whose activation technology is mature. However, the heat generated during activation is usually discharged along with flue gas. The extruded columnar activated carbon (such as strip-shaped activated carbon, described below as activated carbon rods) has uneven density, numerous burrs on the cut surface, and low energy efficiency of the processing equipment.

[0020] A type of activated carbon preparation equipment includes an activation furnace 1. The upper end of the activation furnace 1 includes a flue gas collection pipe 11, which is connected to a heater 2. The outlet of the heater 2 is connected to a flue gas reaction device 3. A portion of the hot water and binder from the heater 2 are fed into a batching device 4 according to a preset ratio. The batching device 4 is connected to a mixing device 5 via a batching pipe 41. The inlet of the mixing device 5 is connected to the outlet of the activation furnace 1. The mixing device 5 contains a spiral stirring rod, and a motor is connected to drive the spiral stirring rod. The outlet of the mixing device 5 is connected to a cake-making machine 6. The cake-making machine 6 includes a cake-making drum, and a pressing block 61 at one end of the piston driving the cake-making process is gap-connected to the inner wall of the cake-making drum. The pressing block 61 is provided with an exhaust hole; the outlet of the cake making machine 6 is connected to the forming equipment 7. The forming equipment 7 includes a forming box 71 and a T-shaped pressing column. The forming box 71 is horizontally placed on the frame. The forming box 71 includes a first section and a second section. The first section includes a feeding trough 72. The T-shaped pressing column moves back and forth between the first section and the second section. The second section includes a base 8 that is detachably connected to the box body of the forming box 71. A cutting mechanism 12 is provided outside the base 8. A material box 9 is provided directly below the base 8. The material box 9 includes a turntable 10 with a frustum structure. The motor drives the turntable 10 to rotate, so that the activated carbon rods falling on the frustum are evenly thrown into the material box 9, avoiding the accumulation of the cut activated carbon rods.

[0021] like Figure 1 As shown in the figure (the powder cake inside the forming box 71 is represented by a dashed box), the preparation process of the shaped activated carbon preparation equipment provided in this application includes:

[0022] 1) The activated carbon powder to be activated, such as coal powder or wood powder, is activated in the activation furnace 1. This embodiment does not impose specific limitations on the specific activation process structure of the activation furnace 1; existing technologies can be referenced. A flue gas collection pipe 11 is provided at the top of the activation furnace 1 to exhaust the high-heat flue gas inside the furnace 1.

[0023] 2) The aforementioned high-temperature flue gas enters the heater 2, causing heat exchange between the high-temperature flue gas and the water in the aluminum tube of the heater 2, heating the water in the aluminum tube, and a portion of the heated water is used to connect with the feeder 4.

[0024] 3) The non-high-temperature flue gas, after heat exchange in heater 2, enters flue gas reaction equipment 3. Harmful components in the flue gas are removed using chemical principles, bringing the flue gas to emission standards. A combustion device can also be installed in the flue gas reaction equipment 3 to fully combust any unburned components in the flue gas. This embodiment does not impose specific limitations on other structures of the flue gas reaction equipment 3.

[0025] 4) A portion of the hot water heated by heater 2 and the binder are introduced into the mixing device 4 according to a preset ratio for thorough mixing. To improve the mixing effect, a motor-controlled stirrer with fan-shaped blades is installed in the mixing device 4 to increase the stirring effect by increasing the contact surface area with the mixture. In this embodiment, the aforementioned preset ratio is not specifically limited. This ratio is related to the actual particle size of the coal powder and needs to be adjusted according to actual adaptability.

[0026] 5) The aforementioned mixed liquid is fed into the mixing device 5, which receives the activated carbon powder activated by the activation furnace 1 and uses the aforementioned mixed liquid to fully stir the activated carbon powder into a uniform powder.

[0027] 6) The aforementioned dough is fed into the cake-making machine 6, and the cylinder pushes the pressing block 61 inside the cake-making machine 6 to press the dough into a cake of a certain thickness. The pressing block 61 is provided with an exhaust hole to release the gas in the dough, effectively avoiding the defect of incompletely shaped carbon powder in the produced shaped activated carbon rod, and improving the uniformity of the activated carbon density;

[0028] 7) Place the prepared powder cake into the forming device 7. Use the T-shaped pressure column in the forming device 7 to extrude the powder cake from the base 8 to obtain a strip structure. Use the cutting mechanism 12, which is located close to the base 8, to cut the strip structure into strip-shaped activated carbon rods of a preset length. The feeding trough 72 of the forming device is the inlet where the powder cake falls into the forming device 7. The base 8 can be fixed to the rear end of the second end of the forming box 71 by clamps.

[0029] It should be noted that the aforementioned equipment includes necessary temperature and humidity detection devices. For example, a humidity sensor is used to monitor and adjust the moisture content of the dough in real time, preventing it from becoming too dry and loose, or too wet and sticking to the inner wall of the dough-making machine 6 during cake making. Additionally, the system's necessary detection values ​​can also be used to determine the mixing time, ensuring that the coal powder, water, and binder are mixed evenly.

[0030] It should also be noted that the aforementioned heater 2 includes: multiple rows of spaced aluminum tubes, a filter screen located at the air inlet of the heater 2, a water pump, and a water storage tank. The inlet and outlet of the water pump are connected to the water storage tank and the aluminum tubes, respectively. The filter screen is used to filter particulate impurities in the flue gas, the water pump is used to supply water to the aluminum tubes, and the water storage tank is used to store water added to the aluminum tubes and water heated by the waste heat of the flue gas. It can be designed with different tanks, and this embodiment does not impose specific limitations on this structure. In addition, the aforementioned adhesive is tar or starch. Tar has adhesive and moisturizing properties, which can effectively prevent lumps or cakes from sticking to the inner wall of the processing equipment. Starch also has adhesive and moisturizing properties after contact with water.

[0031] In some embodiments, the outer wall of the aforementioned molding box 71 is attached with PTC battery cells. After the PCT battery cells 73 are connected to the current, they will heat the molding box 71 at a constant temperature to maintain the ambient temperature required for molding and ensure the quality of activated carbon rod molding.

[0032] In addition, such as Figure 2 As shown, the aforementioned cutting mechanism 12 in this embodiment includes a first cutter 121 and a second cutter 122 disposed opposite to each other. The second cutter 122 is connected to a cylinder to move closer to or away from the first cutter 121. Figure 2 The small and medium circles represent the end faces of the extruded cylindrical activated carbon. In this embodiment, a single drive mechanism simultaneously controls the movement of multiple second cutters 122 to cut all activated carbon rods at the same time. The cutter drive (i.e., cylinder) controls the second cutter 122 to move towards the first cutter 121. This reduces costs by minimizing the need for drive equipment, while the two cutters simultaneously abut against each other from opposite sides of the strip-shaped activated carbon rod, avoiding the burrs that occur at the cut point caused by the existing method of cutting directly from only one side. Because they abut against each other from both sides, the activated carbon at the cut edge of the carbon rod will shrink towards the center of the carbon rod during cutting, controlling the activated carbon that would otherwise produce burrs. In other embodiments, laser cutting or high-frequency vibrating blade cutting can be used to increase the cutting accuracy of the activated carbon rods and reduce burrs.

[0033] In addition, considering the wear of the cutting tool by activated carbon particles, a polycrystalline diamond (PCD) or cubic boron nitride (CBN) coating can be applied to the cutting tool; or, a coolant spray or air cooling device can be added to reduce the heat generated by the friction of the activated carbon particles on the cutting tool.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shaped activated carbon preparation device, comprising an activation furnace (1), characterized in that, The upper end of the activation furnace (1) includes a flue gas collection pipe (11), which is connected to a heater (2). The outlet of the heater (2) is connected to a flue gas reaction device (3). A portion of the hot water and adhesive from the heater (2) are fed into a feeder (4) according to a preset ratio. The feeder (4) is connected to a mixing device (5) via a feeder pipe (41). The inlet of the mixing device (5) is connected to the outlet of the activation furnace (1). The mixing device (5) is equipped with a spiral stirring rod, and a motor is connected to the spiral stirring rod. The outlet of the mixing device (5) is connected to a cake maker (6). The cake maker (6) includes a cake maker drum and a piston at one end of the cake maker drive. The pressing block (61) is connected to the inner wall of the cake-making barrel with a gap, and the pressing block (61) is provided with an exhaust hole; the outlet of the cake-making machine (6) is connected to the forming equipment (7), and the forming equipment (7) includes a forming box (71) and a T-shaped pressing column; the forming box (71) includes a first section and a second section, the first section includes a feeding groove (72), the T-shaped pressing column moves back and forth between the first section and the second section, the second section includes a base (8) that is detachably connected to the box body of the forming box (71), a cutting mechanism (12) is provided outside the base (8), a material box (9) is provided directly below the base (8), and the material box (9) includes a turntable (10) with a frustum structure inside, and the motor drives the turntable (10) to rotate.

2. The shaped activated carbon preparation equipment according to claim 1, characterized in that, The heater (2) includes: multiple rows of spaced aluminum tubes (21), a filter screen (22) installed at the air inlet of the heater (2), a water pump and a water storage tank. The inlet and outlet of the water pump are connected to the water storage tank and the aluminum tubes (21) respectively.

3. The shaped activated carbon preparation equipment according to claim 2, characterized in that, The bottom of the feeder (4) includes fan-shaped blades, and the motor is connected to the fan-shaped blades through a connecting seat; the molding device (7) includes a cylinder, and the cylinder is connected to the T-shaped pressure column.

4. The shaped activated carbon preparation equipment according to claim 2, characterized in that, The outer wall of the molding box (71) is covered with PTC battery cells (73).

5. The shaped activated carbon preparation equipment according to claim 4, characterized in that, The cutting mechanism (12) includes a first cutter (121) and a second cutter (122) arranged opposite to each other. The second cutter (122) is connected to a cylinder to move closer to or away from the first cutter (121).

6. The shaped activated carbon preparation equipment according to claim 5, characterized in that, The adhesive is tar or starch.

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