A low-cost production process and preparation device for increasing the iodine value of activated carbon

Abstract

The invention discloses a production process and a preparation device for improving the iodine value of activated carbon at low cost, comprising the following steps: S1, preparing appropriate fruit shells as raw materials, such as coconut shells, apricot shells, walnut shells, etc., and crushing and screening them; S2, putting the above raw materials into a cleaning tank for stirring and steaming for 10-20 minutes. The production process and a preparation device for improving the iodine value of activated carbon provided by the invention at low cost, stir and clean the fruit shells in the cleaning tank by a stirrer, and the water is redirected by the inclined sheet to flow downward and carry the fruit shells to roll, and the auger sends the stirred and cleaned raw materials to the upper end surface of the grid through a conveying pipe for paving, so that the water carried by the fruit shells is drained through the grid, and the vertical pipe is heated to generate steam, and the steam is directly applied to the spread fruit shells for steaming, so that the steam cleans the micropores on the surface of the fruit shells, and the steam condenses on the lower end surface of the ventilation plate, so that part of the condensed water droplets drip on the spread fruit shells for cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of activated carbon production, and in particular to a production process and a preparation device for improving the iodine value of activated carbon at a low cost. Background Art

[0002] Activated carbon is often made from raw coal, wood and fruit shells, and is carbonized at several hundred degrees Celsius and then activated. Using fruit shells to prepare activated carbon can greatly meet the purpose of low cost, reduce resource waste and improve environmental protection effects.

[0003] According to the publication (announcement) number: CN117023583A, publication date: 2023-11-10, a low-cost production process for increasing the iodine value of activated carbon was announced.

[0004] In the prior art including the above-mentioned patent, the process of producing activated carbon from fruit shells includes the selection and preparation of raw materials, crushing and screening, carbonization treatment, activation treatment, washing and drying. During the selection and preparation of raw materials, sludge and other debris are often attached to the surface of the raw materials. The raw materials need to be cleaned and dried in advance to ensure the cleanliness of the fruit shell raw materials and avoid the interference of dirt on the subsequent carbonization of activated carbon. At the same time, the activated carbon raw materials can be more fully mixed with the alkali solution during alkali washing. However, the existing stirring and cleaning method can only meet the normal cleaning of the fruit shell surface, and cannot clean the dirt deep below the surface micropores, resulting in low efficiency of mixing the alkali solution on the fruit shell surface and low iodine value. Summary of the invention

[0005] The purpose of the present invention is to provide a low-cost production process and preparation device for improving the iodine value of activated carbon, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A low-cost production process for increasing the iodine value of activated carbon comprises the following steps:

[0008] S1. Prepare appropriate fruit shells as raw materials, such as coconut shells, apricot shells, walnut shells, etc., and crush and screen them;

[0009] S2, putting the above raw materials into a cleaning tank, stirring, steaming and washing for 10-20 minutes;

[0010] S3, the cleaned raw materials are sent to the drying oven via a conveyor belt and dried at 110-130℃ for 50-60min;

[0011] S4, putting the raw materials into a carbonization furnace at 450°C-460°C to pyrolyze the raw materials to convert them into charcoal;

[0012] S5, put into activation furnace in 800℃-900℃ environment, and contact with gas or steam at this temperature;

[0013] S6. Wash the generated activated carbon to remove residues, and then dry it to obtain the final activated carbon product.

[0014] A low-cost preparation device for improving the iodine value of activated carbon, comprising a carbonization furnace and a cleaning pool, wherein a water tank is arranged outside the carbonization furnace, a water pipe connected to the water tank is arranged on the cleaning pool, and a delivery pipe fixedly installed in the cleaning pool, wherein an umbrella-shaped grid is arranged on the upper end of the delivery pipe;

[0015] A stirring seat is rotatably arranged in the cleaning pool, and an auger movable in the conveying pipe is arranged on the stirring seat;

[0016] The stirring seat has a spiral array of stirrers, and the stirrers are divided into horizontal tubes and vertical tubes according to their shapes. The vertical tubes have a linear array of inclined plates that maintain a predetermined angle with them, and the end faces of the inclined plates are used to guide the water in the cleaning pool to flow to the bottom of the pool;

[0017] The horizontal pipe is provided with an inlet, and the vertical pipe is connected with the cleaning pool. The upper end of the vertical pipe is provided with an exhaust seat for exhausting steam, and cooperates with the raw materials spread on the grid.

[0018] Preferably, a filter frame arranged in parallel with the grid is provided in the cleaning pool, and the filter frame is divided into a ventilation plate and a filter plate according to the function;

[0019] The condensed steam of the ventilation plate drops onto the grid, and a collecting trough for receiving the sewage discharged from under the ventilation plate is arranged on the side wall of the cleaning pool.

[0020] Preferably, a notch connected to the collecting tank is provided on the side wall of the cleaning tank, an air storage cavity is formed between the filter plate and the cleaning tank cover, and the notch is connected to the air storage cavity;

[0021] The cleaning pool is provided with an extraction pipe, which extracts the steam in the gas storage cavity.

[0022] Preferably, the agitator has a high-speed state during its rotational stroke, and in the high-speed state the vertical pipe moves close to the side wall of the cleaning tank and is used to receive material from the feed inlet of the cleaning tank.

[0023] Preferably, an exhaust head is movably arranged on the exhaust seat, and a plurality of the exhaust heads contact the grid frame under centrifugal force, so that the grid frame is deformed in a wave shape;

[0024] The exhaust head closes the exhaust seat to discharge gas, and the pressure in the vertical pipe increases, causing the exhaust head to bounce open to discharge gas and push the wave-shaped deformed grid to rotate and vibrate to discharge materials.

[0025] Preferably, a sewage outlet is provided on the stirring seat, and the inlet is connected to the sewage outlet under centrifugation;

[0026] The transverse pipe is provided with an outlet which is arranged offset from the inlet, so that the outlet discharges dirt and intercepts stone particles.

[0027] Preferably, a sleeve is provided at the corner of the agitator, a storage cylinder with a port assembly collecting cover is slidably provided in the sleeve, and the collecting cover maintains a predetermined distance from the bottom of the cleaning pool.

[0028] Preferably, a vertical rod is fixedly installed in the exhaust head, and a plug sliding in the storage cylinder is fixedly installed at the end of the vertical rod;

[0029] The pop-up exhaust head drives the plug to pump the dirt in the collection cover into the storage cylinder.

[0030] Preferably, the dirt in the storage cylinder pushes back the plug and drives the exhaust seat to move at the vertical pipe port.

[0031] In the above technical scheme, the present invention provides a low-cost production process and preparation device for improving the iodine value of activated carbon, which have the following beneficial effects: when the carbonization furnace is working, the temperature is transferred to the water tank outside it, so that the water pipe sends hot water into the cleaning pool, and the rotating agitator stirs and cleans the fruit shells. At the same time, the water is redirected by multiple inclined plates to flow downward and carry the fruit shells, so that the fruit shells are constantly tumbling and stirring in the cleaning pool, thereby increasing the cleaning effect of the fruit shells. The auger sends the raw materials after stirring and cleaning into the conveying pipe, so that the upper port of the conveying pipe is discharged, and the raw materials are rolled and spread on the upper end surface of the grid through the inclination of the grid, so that the water carried by the fruit shells is drained through the grid, and the steam generated by the hot water in the vertical pipe acts on the spread fruit shells to perform steam washing, so that the steam cleans the micropores on the surface of the fruit shells, improves the mixing efficiency of the fruit shells and the alkali solution, and the activated carbon produced from the fruit shells has a higher iodine value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0033] Figure 1 A schematic diagram of the structure of a carbonization furnace and a cleaning pool provided in an embodiment of the present invention;

[0034] Figure 2 A front cross-sectional schematic diagram of a cleaning pool provided by an embodiment of the present invention;

[0035] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0036] Figure 4 for Figure 2 An enlarged schematic diagram of point B;

[0037] Figure 5 A front cross-sectional schematic diagram of a stirrer structure provided by an embodiment of the present invention;

[0038] Figure 6 An exploded schematic diagram of a stirring stand, a stirrer, a mesh frame and a filter frame provided in an embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the upward structure of the stirrer provided in an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Carbonization furnace; 2. Cleaning tank; 20. Water pipe; 21. Discharge port; 3. Stirring seat; 31. Auger; 32. Drain port; 4. Stirrer; 41. Horizontal pipe; 411. Inlet; 412. Outlet; 42. Vertical pipe; 421. Inclined plate; 43. Exhaust seat; 431. Exhaust head; 432. Vertical pole; 433. Plug; 44. Sleeve; 441. Transfer chamber; 45. Storage cylinder; 451. Collecting hood; 452. Spacer; 453. Liquid storage chamber; 5. Delivery pipe; 51. Grid; 52. Filter frame; 521. Ventilation plate; 522. Filter plate; 53. Gas storage chamber; 54. Collecting tank; 55. Suction tube. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] A low-cost production process for increasing the iodine value of activated carbon comprises the following steps:

[0044] S1. Prepare appropriate fruit shells as raw materials, such as coconut shells, apricot shells, walnut shells, etc., and crush and screen them;

[0045] S2, putting the above raw materials into the cleaning pool 2, the rotating stirrer 4 stirs and cleans the fruit shells, and the water is redirected by the inclined sheet 421 to flow downward, so that the fruit shells with a certain buoyancy can be stirred by the downward flowing water, so that the fruit shells are constantly rolling in the cleaning pool 2, and the auger 31 sends the stirred and cleaned raw materials into the conveying pipe 5, so that the upper port of the conveying pipe 5 is discharged, and the raw materials are rolled and spread on the upper end surface of the grid 51 through the inclination of the grid 51, so that the water carried by the fruit shells is drained through the grid 51, and the vertical pipe 42 is heated to generate steam, and the steam is directly applied to the spread fruit shells for steam washing, so that the steam cleans the micropores on the surface of the fruit shells, and the steam condenses on the lower end surface of the ventilation plate 521, so that part of the condensed water droplets drip on the spread fruit shells for washing, and the treatment is 10-20 minutes;

[0046] S3, the cleaned raw materials are sent to the drying oven via a conveyor belt and dried at 110-130℃ for 50-60min;

[0047] S4, putting the raw material into the 450℃-460℃ environment of the carbonization furnace 1 to pyrolyze the raw material to convert it into charcoal, and the carbonization furnace 1 transfers the temperature to the cleaning pool 2 when it is working, so that the water in the cleaning pool 2 has a high temperature;

[0048] S5, put into the activation furnace at 800℃-900℃ environment, the steam floating in the cleaning pool 2 passes through the ventilation plate 521, and is filtered by the filter plate 522 and enters the gas storage chamber 53, and the steam in the gas storage chamber 53 is extracted through the extraction pipe 55 and used by the activation furnace, so that the carbon contacts the gas or steam at this temperature;

[0049] S6. Wash the generated activated carbon to remove residues, and then dry it to obtain the final activated carbon product.

[0050] like Figure 1-7 As shown, a low-cost preparation device for improving the iodine value of activated carbon includes a carbonization furnace 1 and a cleaning tank 2. A water tank is arranged outside the carbonization furnace 1. A water pipe 20 connected to the water tank is arranged on the cleaning tank 2. It also includes a delivery pipe 5 fixedly installed in the cleaning tank 2. An umbrella-shaped grid frame 51 is arranged on the upper end of the delivery pipe 5.

[0051] A stirring seat 3 is rotatably arranged in the cleaning tank 2, and an auger 31 movable in the conveying pipe 5 is arranged on the stirring seat 3;

[0052] The stirring seat 3 has a stirrer 4 in a spiral array. The stirrer 4 is divided into a horizontal tube 41 and a vertical tube 42 according to the shape. The vertical tube 42 has a linear array of inclined plates 421 that maintain a predetermined angle with it, and the end surface of the inclined plates 421 is used to guide the water in the cleaning pool 2 to flow to the bottom of the pool.

[0053] An inlet 411 is provided on the horizontal pipe 41 , and the vertical pipe 42 is connected to the cleaning tank 2 . An exhaust seat 43 for exhausting steam is provided at an upper end of the vertical pipe 42 , and cooperates with the raw materials spread on the grid 51 .

[0054] Specifically, the water tank arranged on the periphery of the carbonization furnace 1 can utilize the carbonization temperature to transfer the high temperature to the cleaning pool 2. A water inlet is provided on the water tank, and the water pipe 20 is arranged diagonally, so that the water pipe 20 has a certain water heat exchange function, which is used to keep the water temperature in the cleaning pool 2 constant, facilitate the continuous generation of water vapor in the vertical pipe 42, and increase the steam cleaning efficiency.

[0055] Furthermore, the conveying pipe 5 is installed in the cover of the cleaning tank 2 by using a connecting frame, and the umbrella-shaped grid 51 is made of an elastic metal mesh, so that the grid 51 can be squeezed and deformed, making it convenient for the grid 51 to discharge the raw materials spread thereon out of the cleaning tank 2.

[0056] Furthermore, a motor is provided at the bottom of the cleaning tank 2, and the motor drives the stirring seat 3 to rotate through gear meshing. The motor and its transmission setting method are existing technologies and will not be described in detail here. A separate pipeline is provided at the bottom of the cleaning tank 2 for connecting the bottom of the stirring seat 3 for sewage discharge, and the pipeline and its setting method are also existing technologies and will not be described in detail here.

[0057] Furthermore, the upper end of the auger 31 is higher than the upper end of the conveying pipe 5, so that the raw materials can be actively dropped on the end surface of the grid 51 when being conveyed upward by the auger 31. All the inclined blades 421 have the same inclination angle, and if the multiple inclined blades 421 are not separated and used by the vertical pipe 42, the inclined blades 421 will form a whole spiral blade arrangement. Therefore, the multiple inclined blades 421 have a stirring effect during the rotation process, and also take into account the active downward pressure and conveyance of the water in the cleaning pool 2, so that the floating fruit shells can be sunk, thereby increasing the cleaning effect of the fruit shells.

[0058] Furthermore, a filter screen is fixedly installed at the inlet 411, and the filter screen only filters the raw materials, while some stones and dirt can enter the horizontal pipe 41 from the inlet 411 for temporary storage.

[0059] When the carbonization furnace 1 is working, the temperature is transferred to the water tank around it, so that the water pipe 20 sends hot water into the cleaning pool 2, so that the fruit shells cleaned in the cleaning pool 2 can be helped to clean the dirt under the action of high temperature, and the rotating agitator 4 is used to stir and clean the fruit shells. At the same time, the lower end surfaces of multiple inclined plates 421 will actively hit the water in the cleaning pool 2, so that the water is redirected by the inclined plates 421 to flow downward, so that the fruit shells with a certain buoyancy can be stirred by the downward flowing water, so that the fruit shells are constantly rolling in the cleaning pool 2, thereby increasing the cleaning effect of the fruit shells, and the auger 31 sends the raw materials after stirring and cleaning into the conveying pipe 5, so that the upper port of the conveying pipe 5 is discharged, and Due to the inclination of the grid 51, the raw materials are rolled and spread on the upper end surface of the grid 51, so that the water carried by the fruit shells is drained out through the grid 51, and the hot water entering the horizontal pipe 41 from the inlet 411 intercepts the fruit shells and precipitates the dirt and stones in the horizontal pipe 41, so that the hot water in the vertical pipe 42 is not easy to contain dirt, which facilitates the hot water in the vertical pipe 42 to quickly generate steam. The hot water in the cleaning pool 2 generates less steam than the vertical pipe 42 due to the presence of the fruit shells, so that the vertical pipe 42 directly acts on the spread fruit shells with steam for steam washing, so that the steam can clean the micropores on the surface of the fruit shells, improve the mixing efficiency of the fruit shells and the alkali solution, and the activated carbon produced from the fruit shells has a higher iodine value.

[0060] As an embodiment further provided by the present invention, a filter frame 52 arranged in parallel with the grid frame 51 is provided in the cleaning pool 2, and the filter frame 52 is divided into a ventilation plate 521 and a filter plate 522 according to the function;

[0061] The condensed steam of the ventilation plate 521 drips onto the grid 51 , and a collecting tank 54 for receiving the sewage discharged from the ventilation plate 521 is provided on the side wall of the cleaning pool 2 .

[0062] Specifically, the filter frame 52 is fixedly mounted on the connecting frame of the conveying pipe 5, and the filter frame 52 is also umbrella-shaped, so that the floating steam condenses when it encounters the ventilation plate 521, and the water droplets drip and are used to clean the spread fruit shells, so that the cleaned fruit shells contain less dirt.

[0063] Furthermore, the ventilation plate 521 is provided with a plurality of notches, and the notches are fixedly provided with inverted convex pipes, so that when the steam passes through the ventilation plate 521, the residual dirt can be blocked, the workload of the filter plate 522 is reduced, and the steam processed by the filter plate 522 is purer.

[0064] Furthermore, the collecting groove 54 is in a "U" shape, so that part of the condensed water flowing obliquely downward from the ventilation plate 521 can enter the collecting groove 54, with the purpose of storing a small amount of dirt contained in the condensed water for later cleaning.

[0065] The steam from steaming and washing the spread fruit shells floats to the ventilation plate 521, and is filtered when passing through the fruit shells, making the floating steam purer, and the steam condenses on the lower end surface of the ventilation plate 521, so that part of the condensed water droplets drip on the spread fruit shells, the purpose of which is to be used for cleaning the spread fruit shells, so that the pollution content of the fruit shells after steaming and washing is lower, and the mixing efficiency of the fruit shells and the alkali solution is guaranteed; and part of the condensed water droplets reach the edge of the lower end surface of the ventilation plate 521 along the ventilation plate 521 until they drip into the collecting tank 54, and a small amount of fruit shell debris and dirt particles contained in the water droplets are stored, which is convenient for later manual cleaning.

[0066] As another embodiment further provided by the present invention, a notch connected to the collecting tank 54 is provided on the side wall of the cleaning tank 2, and an air storage cavity 53 is formed between the filter plate 522 and the cover of the cleaning tank 2, and the notch is connected to the air storage cavity 53;

[0067] The cleaning pool 2 is provided with an extraction pipe 55 for extracting steam from the gas storage chamber 53 .

[0068] Specifically, the filter plate 522 can circulate steam and filter out impurities, making the steam entering the gas storage chamber 53 purer, reducing the difficulty of pre-treatment of the steam sent to the activation furnace, and the suction pipe 55 is equipped with a steam treatment device (existing technology, not described here), the purpose of which is to ensure that the steam sent to the activation furnace meets the activated carbon production needs.

[0069] Furthermore, the collecting tank 54 on the outer wall of the cleaning tank 2 has a hinged cover to prevent dirt in the external environment from entering the cleaning tank 2, thereby ensuring the purity of the steam.

[0070] The rising steam passes through the ventilation plate 521 and is filtered by the filter plate 522, so that the steam entering the air storage chamber 53 is purer, and the steam in the air storage chamber 53 is extracted through the suction tube 55 and acts on the activation furnace, so that the steam utilization rate is higher and the production cost is reduced. The missing air in the air storage chamber 53 will be supplemented through the gap in the collecting tank 54 to ensure the gas circulation in the air storage chamber 53, and the air flowing through the gap will gradually dry the water in the collecting tank 54 to prevent the water in the collecting tank 54 from overflowing. In the process of drying, the dirt particles will gradually gather and accumulate, which is convenient for centralized cleaning later.

[0071] As another embodiment further provided by the present invention, the agitator 4 has a high-speed state during its rotational stroke, and in the high-speed state, the vertical pipe 42 moves close to the side wall of the cleaning tank 2 and is used to receive the material from the feed port of the cleaning tank 2 .

[0072] Specifically, symmetrically arranged sliders are fixedly installed on the side walls of the square tube-shaped horizontal tube 41, and the sliders slide in the slideways opened in the stirring seat 3, and a spring is fixedly installed between the sliders and the slideways, so that when the stirrer 4 moves laterally due to centrifugal force, the spring is deformed, thereby ensuring the movement stability of the stirrer 4 and facilitating the resetting of the stirrer 4.

[0073] Furthermore, a feed port is provided on the cleaning tank 2, and the material feeding and installation method of the feed port are prior arts, which will not be described in detail here.

[0074] The stirrer 4 is driven to rotate at a high speed through the stirring seat 3, so that the vertical pipe 42 actively approaches the side wall of the cleaning tank 2 due to centrifugal force, so that the multiple inclined plates 421 are located below the feed port of the cleaning tank 2. At this time, the feed port adds fruit shells into the cleaning tank 2, so that the inclined plates 421 with accelerated rotation speed can quickly transport the fruit shells to the bottom of the cleaning tank 2, thereby reducing the situation where the fruit shells float on the surface of the pool water. The raw materials after stirring and processing under normal rotation speed are pushed downward to the lower end position of the conveying pipe 5 at this time, and at the same time, with the increase in the rotation speed of the auger 31, it is convenient for the auger 31 to transport the stirred and cleaned fruit shells upward to the grid 51, thereby realizing continuous cleaning of the fruit shells by the cleaning tank 2, which has higher processing efficiency than the existing batch cleaning of fruit shells.

[0075] As another embodiment further provided by the present invention, an exhaust head 431 is movably provided on the exhaust seat 43, and the multiple exhaust heads 431 contact the grid 51 under centrifugal force, so that the grid 51 is deformed in a wave shape;

[0076] The exhaust head 431 closes the exhaust seat 43 for gas outlet, and the pressure in the vertical pipe 42 increases, causing the exhaust head 431 to bounce off and release gas, and push the wave-shaped deformed grid frame 51 to rotate and vibrate to discharge materials.

[0077] Specifically, a discharge port 21 is provided on the side wall of the cleaning pool 2, and the discharge port 21 is equipped with a conveyor belt and a drying device to completely dry the fruit shells after steaming and washing before sending them to the carbonization furnace 1 for processing. The conveyor belt and the drying device are existing technologies and are not described in detail here.

[0078] Furthermore, the agitator 4 arranged in a spiral array makes the upper ends of the multiple vertical pipes 42 increase in a spiral shape, and is used to raise the grid 51 to deform in a wave shape. A plurality of telescopic sleeves are fixedly installed between the exhaust head 431 and the exhaust seat 43, and the steam is discharged from the gap between every two telescopic sleeves. A spring is fixedly installed in the telescopic sleeve so that the spring with stored force can be suddenly released and hit the grid 51, thereby generating shaking to help the fruit shell to be discharged.

[0079] By moving the vertical pipe 42 close to the edge of the grid 51 in a centrifugal state, the exhaust head 431 is made to contact the lower end surface of the umbrella-shaped grid 51 until the centrifugal force prompts the exhaust head 431 to block the closed steam discharge, accompanied by the compression deformation of the spring. At this time, when multiple exhaust heads 431 rotate incrementally from low to high, they actively push the grid 51 to deform in a circular wave shape, and the closed vertical pipe 42 gradually increases the pressure inside it, which compresses the exhaust head 431 to suddenly bounce up, so that the grid 51 has a vertical shaking effect, so that the grid 51 forms a screen movement function similar to a rotary vibrating screen, so that the steamed and washed fruit shells can be quickly discharged from the cleaning pool 2, and the cleaning pool 2 can maintain continuity when completing feeding, cleaning and discharging, thereby improving the processing efficiency of the fruit shells.

[0080] As another embodiment further provided by the present invention, a sewage outlet 32 ​​is provided on the stirring seat 3, and the centrifugal lower inlet 411 is connected to the sewage outlet 32;

[0081] The horizontal pipe 41 is provided with an outlet 412 which is arranged offset from the inlet 411 , so that the outlet 412 discharges dirt and intercepts stone particles.

[0082] Specifically, the sewage outlet 32 ​​is located at the axis of the stirring seat 3, and the diameter of the sewage outlet 32 ​​with a circular cross-section is larger than the width of the inlet 411, so that the water in the cleaning pool 2 can fill and clean the inlet 411 layer by layer, and a plurality of through holes are also provided on the stirring seat 3, and the through holes are intermittently connected to the outlet 412, and the inlet 411 and the outlet 412 are staggered. The purpose is to discharge part of the dirt from the cleaning pool 2 through the stirring seat 3, thereby reducing the accumulation of dirt in the cleaning pool 2 and interfering with the cleaning of the fruit shells.

[0083] Furthermore, the outlet 412 is also fixedly installed with a filter, and the filter holes of the outlet 412 are smaller than the filter holes of the inlet 411. The purpose is to allow some stones to be stored in the transverse tube 41 to be used for grinding dirt and impacting and shaking the filter, thereby avoiding blockage of the transverse tube 41, increasing the service life of the agitator 4, and reducing the maintenance cycle of the agitator 4.

[0084] The water enters the stirring seat 3 through the inlet 411 in the centrifugal state and is connected with the drain outlet 32. At the same time, the outlet 412 is connected with the through hole, so that the water in the cleaning pool 2 is discharged from the drain outlet 32, and passes through multiple inlets 411, so that the water enters the horizontal pipe 41 to flush the dirt therein, so that the dirt is filtered out of the stones through the outlet 412, and the dirt is discharged from the cleaning pool 2 through the through hole, thereby achieving the purpose of removing part of the dirt, and reducing the problem of dirt accumulating in the horizontal pipe 41 and interfering with the vertical pipe 42 to generate steam, so that the steam generated by the vertical pipe 42 can effectively act on the steaming and washing of the spread fruit shells.

[0085] As another embodiment further provided by the present invention, a sleeve 44 is provided at the corner of the agitator 4, a storage cylinder 45 with a port-mounted collection cover 451 is slidably provided in the sleeve 44, and the collection cover 451 maintains a predetermined distance from the bottom of the cleaning pool 2.

[0086] Specifically, a partition net is provided at the bottom of the cleaning pool 2, and a plurality of transverse pipes 41 are all located below the partition net, so that the partition net can filter out dirt in the fruit shell, making it convenient for the collection cover 451 to collect the dirt, while also ensuring that the fruit shell can be normally transported by the auger 31.

[0087] Furthermore, the sleeve 44 is detachably connected with bolts and nuts and is located at the intersection of the horizontal pipe 41 and the vertical pipe 42. The collecting cover 451 is spoon-shaped to pick up dirt at the bottom of the pool, and the collecting cover 451 is fixedly installed at the lower end of the storage cylinder 45 to facilitate the collected dirt to enter the storage cylinder 45 for storage.

[0088] Furthermore, a spacer 452 made of elastic metal sheet is fixedly installed in the storage cylinder 45, and the cross-section of the spacer 452 is trapezoidal, so that the dirt entering the storage cylinder 45 is not easy to fall out, and the sleeve 44 can be removed to clean the dirt conveniently.

[0089] The agitator 4 rotates to make the scoop mouth of the collecting cover 451 actively pick up the dirt at the bottom of the pool, so that the dirt is temporarily stored in the collecting cover 451. Because the agitator 4 is always in a rotating state, the dirt in the collecting cover 451 will be retained, realizing the initial storage function of the dirt. When the dirt is gradually accumulated in the collecting cover 451, the dirt is actively replenished into the storage cylinder 45, so that the storage cylinder 45 can store the dirt, thereby reducing the interference of the dirt at the bottom of the pool with the mixing and cleaning of the fruit shells.

[0090] As another embodiment further provided by the present invention, a vertical rod 432 is fixedly installed in the exhaust head 431, and a plug 433 sliding in the storage cylinder 45 is fixedly installed at the end of the vertical rod 432;

[0091] The pop-up exhaust head 431 drives the plug 433 to pump the dirt in the collection cover 451 into the storage cylinder 45.

[0092] Specifically, a rubber ring is fixedly sleeved on the plug 433 to increase the sealing performance of the pump liquid, and a transfer chamber 441 is formed at the intersection of the upper end surface of the plug 433 and the horizontal pipe 41 and the vertical pipe 42 to enable the transfer chamber 441 to store some stones so that the stones can be used to filter the water in the vertical pipe 42, thereby making the steam generated by the vertical pipe 42 purer and increasing the steaming and washing effect on the spread fruit shells.

[0093] Furthermore, a liquid storage chamber 453 is formed between the plug 433 and the spacer 452, which facilitates the liquid storage chamber 453 to be filled with liquid and increases the suction force of the piston movement, so that the plug 433 can more easily pump the dirt accumulated below the spacer 452 into the liquid storage chamber 453, so that the liquid storage chamber 453 is responsible for storing dirt while also providing pumping power to ensure the suction efficiency of the dirt.

[0094] The pop-up exhaust head 431 pulls the plug 433 through the vertical rod 432, so that the plug 433 that slides up suddenly causes the liquid in the liquid storage chamber 453 to have a negative pressure, and the dirt accumulated at the lower end of the storage cylinder 45 is sucked into the storage cylinder 45 through the spacer ring 452, thereby achieving the purpose of storing the dirt temporarily stored in the collection cover 451, so that the storage cylinder 45 can store the dirt and will not enter the bottom of the pool again to interfere with the mixing and cleaning of the fruit shells, and also makes the subsequent maintenance and cleaning more convenient; and when the amount of dirt stored in the storage cylinder 45 gradually increases and exceeds the predetermined capacity of the liquid storage chamber 453, the storage cylinder 45 slides in the sleeve 44 due to gravity, and is accompanied by the deformation of the tension spring (the installation method is the existing technology and is not repeated here) arranged between the upper end of the storage cylinder 45 and the sleeve 44. At this time, the plug 433 gradually approaches the upper end of the storage cylinder 45, but does not separate from the upper end of the storage cylinder 45, increasing The increased capacity of the storage cylinder 45 for storing dirt allows the storage cylinder 45 that is not cleaned regularly to still ensure the dirt collection and storage function, thereby increasing the maintenance and cleaning cycle of the cleaning pool 2. At the same time, the downwardly moved storage cylinder 45 causes the collection cover 451 made of elastic metal sheets to abut against the inner wall of the pool bottom and deform, so that the collection cover 451 can scrape the pool bottom during continued rotation, thereby maximizing the cleaning of dirt attached to the pool bottom and increasing the cleaning effect. The upward sliding plug 433 can also squeeze the liquid and stones in the transfer chamber 441, so that the stones are pushed by the liquid and move toward the inlet 411 and the outlet 412 of the transverse tube 41, so that the stones that collide and move at will can grind and clean the inner wall of the transverse tube 41 to avoid blockage of the transverse tube 41. At the same time, the stones can also actively collide with the filter screen, so that the vibrating filter screen has a high-efficiency decontamination function and increases the dirt discharge effect.

[0095] As another embodiment further provided by the present invention, the dirt in the storage cylinder 45 pushes back the plug 433 and drives the exhaust seat 43 to move to the end of the vertical pipe 42.

[0096] Specifically, a plurality of pits are provided at the upper end of the vertical pipe 42, a tension spring is fixedly installed between the exhaust seat 43 and the pit, and a rubber ring (corrosion-resistant, wear-resistant, and high-temperature resistant material, existing technology, which will not be described here) is fixedly installed at the bottom of the exhaust seat 43 and the upper end of the vertical pipe 42, so that when the exhaust seat 43 is away from the vertical pipe 42, the rubber ring is stretched and deformed, and the deformed rubber ring is not easily deformed by the impact of steam pressure, which is used to ensure that the steam is only used to lift the exhaust head 431, thereby increasing the stability of the frame 51 in transporting fruit shells.

[0097] When the storage cylinder 45 with increased capacity is gradually filled with dirt, the dirt containing stones will push the plug 433 upward, and the spring between the exhaust head 431 and the exhaust seat 43 will not be deformed, ensuring that the exhaust head 431 can pop up normally, so that the grid 51 can stably transport the spread fruit shells, so that the exhaust seat 43 is lifted up by the vertical rod 432 and away from the upper end of the vertical pipe 42. At the same time, accompanied by the deformation of the tension spring, the exhaust seat 43 is lifted up and has an additional vertical stroke, which is used to enable multiple exhaust heads 431 to additionally lift the grid 51, so that the grid 51 has a longer reset stroke and a larger rotational vibration range, thereby increasing the discharge effect on the spread fruit shells.

[0098] Working principle: When the carbonization furnace 1 is working, the temperature is transferred to the water tank outside it, so that the water pipe 20 sends hot water into the cleaning pool 2, and the rotating stirrer 4 is used to stir and clean the fruit shells. At the same time, the lower end surfaces of multiple inclined plates 421 will actively hit the water in the cleaning pool 2, so that the water is redirected by the inclined plates 421 to flow downward, so that the fruit shells with a certain buoyancy can be stirred by the downward flowing water, so that the fruit shells are constantly rolling in the cleaning pool 2, and the auger 31 sends the stirred and cleaned raw materials into the conveying pipe 5, so that the upper port of the conveying pipe 5 is discharged, and the raw materials are rolled and spread on the grid through the inclination of the grid 51. 51 upper end surface, so that the water carried by the fruit shell is drained out through the grid 51, and the vertical pipe 42 is heated to generate steam, and the steam is directly applied to the spread fruit shell to perform steam washing, so that the steam cleans the micropores on the surface of the fruit shell, and the steam condenses on the lower end surface of the ventilation plate 521, so that part of the condensed water droplets drip on the spread fruit shell for washing, so that the pollution content of the fruit shell after steam washing is lower, and at the same time, the floating steam passes through the ventilation plate 521 and is filtered by the filter plate 522, so that the steam entering the air storage chamber 53 is purer, and the steam in the air storage chamber 53 is extracted through the extraction pipe 55 and used by the activation furnace.

[0099] Secondly, under the high-speed centrifugal state, the vertical pipe 42 approaches the edge of the grid 51, so that the exhaust head 431 hits the lower end surface of the umbrella-shaped grid 51 until the centrifugal force prompts the exhaust head 431 to block the closed steam discharge. At this time, when the multiple exhaust heads 431 rotate incrementally from low to high, they actively push the grid 51 to deform in a circular wave shape, and the closed vertical pipe 42 presses the exhaust head 431 to suddenly bounce up due to the gradually increasing pressure inside it, so that the grid 51 has a vertical shaking effect, so that the grid 51 forms a screen movement function similar to a rotary vibrating screen, so that the steamed and washed fruit shells can be quickly discharged from the cleaning pool 2, and the cleaning pool 2 can maintain continuity when completing feeding, cleaning and discharging.

[0100] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A low-cost preparation device for increasing the iodine value of activated carbon, comprising a carbonization furnace (1) and a cleaning tank (2), wherein a water tank is disposed outside the carbonization furnace (1), characterized in that: The cleaning pool (2) is provided with a water pipe (20) connected to a water tank, and further comprises a delivery pipe (5) fixedly installed in the cleaning pool (2), wherein an upper end of the delivery pipe (5) is provided with an umbrella-shaped grid frame (51); A stirring seat (3) is rotatably arranged in the cleaning pool (2), and an auger (31) movable in the conveying pipe (5) is arranged on the stirring seat (3); The stirring seat (3) has a stirrer (4) in a spiral array, and the stirrer (4) is divided into a horizontal tube (41) and a vertical tube (42) according to the shape. The vertical tube (42) has an inclined plate (421) in a linear array that maintains a predetermined angle with the inclined plate (421), and the end surface of the inclined plate (421) is used to guide the water in the cleaning pool (2) to flow toward the bottom of the pool; The horizontal pipe (41) is provided with an inlet (411) and connects the vertical pipe (42) to the cleaning pool (2); an exhaust seat (43) for exhausting steam is provided at an upper end of the vertical pipe (42) and cooperates with the raw materials spread on the grid (51); The cleaning pool (2) is provided with a filter frame (52) arranged in parallel with the grid frame (51); the filter frame (52) is divided into a ventilation plate (521) and a filter plate (522) according to function; The condensed steam of the ventilation plate (521) drips onto the grid frame (51), and a collecting trough (54) for receiving wastewater discharged from the ventilation plate (521) is provided on the side wall of the cleaning pool (2); A notch connected to the collecting tank (54) is provided on the side wall of the cleaning tank (2); an air storage cavity (53) is formed between the filter plate (522) and the cover of the cleaning tank (2), and the notch is connected to the air storage cavity (53); The cleaning pool (2) is provided with an extraction pipe (55), and the extraction pipe (55) extracts steam from the gas storage chamber (53).

2. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 1, characterized in that: The rotation stroke of the stirrer (4) has a high-speed state, and in the high-speed state the vertical pipe (42) moves close to the side wall of the cleaning tank (2) and is used to receive the material fed into the feeding port of the cleaning tank (2).

3. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 2, characterized in that: An exhaust head (431) is movably provided on the exhaust seat (43), and a plurality of the exhaust heads (431) are centrifugally pressed against the grid frame (51), causing the grid frame (51) to deform in a wave shape; The exhaust head (431) closes the exhaust seat (43) to discharge gas, and the pressure in the vertical pipe (42) increases, causing the exhaust head (431) to bounce off to discharge gas, and push the grid frame (51) that is deformed in a wave shape to rotate and vibrate to discharge material.

4. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 3, characterized in that: The stirring seat (3) is provided with a sewage outlet (32), and the centrifugal lower inlet (411) is connected to the sewage outlet (32); The horizontal pipe (41) is provided with an outlet (412) that is arranged offset from the inlet (411), so that the outlet (412) discharges dirt and intercepts stone particles.

5. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 4, characterized in that: The stirrer (4) is connected to a sleeve (44) at a corner thereof, and a storage cylinder (45) having a port assembly collecting cover (451) is slidably arranged inside the sleeve (44), and the collecting cover (451) maintains a predetermined distance from the bottom of the cleaning pool (2).

6. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 5, characterized in that: A vertical rod (432) is fixedly mounted in the exhaust head (431), and a plug (433) that slides in the storage cylinder (45) is fixedly mounted at the end of the vertical rod (432); The popped-up exhaust head (431) drives the plug (433) to pump the dirt in the collection cover (451) into the storage cylinder (45).

7. A low-cost preparation device for increasing the iodine value of activated carbon according to claim 6, characterized in that: The dirt in the storage cylinder (45) pushes back the plug (433) and drives the exhaust seat (43) to move at the port of the vertical pipe (42).

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