Process for preparing a halophyte-based adsorbent and device therefor

Abstract

The application belongs to the field of halophyte-based adsorbent preparation, in particular to a halophyte-based adsorbent preparation process and device, wherein the device comprises a baking furnace, the outer wall of the baking furnace is fixedly connected with a first support frame, the upper portion of the baking furnace is provided with a furnace body, and the outer wall of the furnace body is fixedly connected with a second support frame; the application provides a halophyte-based adsorbent preparation process and device, the output amount of impregnated material is controlled by controlling the rotation of the spiral conveying blade, so that the impregnated material in the holding hopper slowly flows out from the discharge port, thereby avoiding the influence of excessive impregnated material on the baking effect, when the air inlet pipe extracts hot air, the hot air flows along the inclined surface of the drainage plate, thereby making the hot air impact the impregnated material in the holding hopper, facilitating the pre-baking of the impregnated material in the holding hopper, the transmission of the impregnated material is realized through a plurality of baking tables, the impregnated material is uniformly dispersed, and the baking is more uniform and explosion bubbles are less likely to occur.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of halophyte-based adsorbent preparation, in particular to a halophyte-based adsorbent preparation process and device. BACKGROUND

[0002] Yuncheng Salt Lake is located in the southwest of Shanxi Province, under the Zhongtiao Mountain, on the Shu River, composed of Duck Pond, Salt Pond, Nitrate Pond, Tangli Beach, Beimen Beach, etc. Yuncheng Salt Lake, together with the Great Salt Lake in Utah, USA, and the Kuchuk Salt Lake in Siberia, Russia, is known as the world's three largest inland sodium sulfate salt lakes. The mineral resources are abundant, the development history is long, and it is famous at home and abroad, with a 4600-year history of salt mining and a 70-year history of inorganic salt development. It is a pillar industry of Yuncheng economic development. However, due to long-term unbalanced and excessive exploitation and wastewater pollution, the water quality of the salt lake has deteriorated, and the surface and underground mineral resources of the salt lake have also changed greatly. In addition, the Shu River, Yaoxian Channel, Anyi Reservoir, Bayi Reservoir, Xiyangcun Reservoir, Beimen Beach, Duck Pond, and Wuxing Lake in the upper reaches of the salt lake basin are all of inferior V class water quality, which has caused serious threats to the ecological environment of the salt lake. Many studies have found that the content of copper, zinc, lead, cadmium and mercury in Yuncheng Salt Lake is much higher than the national limit value for surface water, directly affecting and even threatening the survival environment of various rich biological resources in the salt lake.

[0003] In the treatment of heavy metal ions in Yuncheng Salt Lake, halophyte-based adsorbents are generally used for adsorption, so improving the preparation effect of halophyte-based adsorbents has become a top priority. In the existing technology, when the paste formed by alkali grass, zinc chloride, iron sulfate and deionized water is heated and carbonized, the deionized water in the viscous matrix is vaporized by heat, and the bubbles formed will break due to surface tension, causing the paste to splash, pollute the furnace cavity and even scald the operator. In addition, the paste has poor thermal conductivity, and local temperature is easy to be too high when heating. The paste near the heating source is easy to coking, and the internal moisture of the paste far from the heating source is difficult to evaporate, making it difficult to dry and carbonize. Secondly, when the paste is prepared, high-temperature-resistant containers such as porcelain crucibles are generally used. After the paste is dried and carbonized, the carbonized material will condense in the container, making it difficult to remove the material.

[0004] Therefore, the application provides a halophyte-based adsorbent preparation process and device. SUMMARY

[0005] In order to make up for the deficiencies of the prior art, solve the problem that when the paste formed by alkali reed, zinc chloride, iron sulfate and deionized water is carbonized by heating, the deionized water in the viscous matrix is vaporized by heating, the bubbles formed are broken due to surface tension, the paste material splashes, pollutes the furnace cavity and even scalds the operator, the paste has poor heat conductivity, local temperature is easy to be too high when heating, the paste near the heating source is easy to coke, the internal moisture of the paste far from the heating source is not easy to evaporate, it is difficult to dry and carbonize, secondly, when the paste is prepared, a high-temperature-resistant container such as a porcelain crucible is generally used, after the paste is dried and carbonized, the carbide formed is condensed in the container, and the material is not easy to take out, the present application provides a halophyte-based adsorbent preparation process and device.

[0006] The technical scheme adopted by the present application to solve its technical problems is as follows:

[0007] S1: a certain amount of alkali reed is weighed, washed, ground, zinc chloride and iron sulfate are added in a mass ratio of 4:1:1, deionized water is added to the mixture, and the mixture is stirred uniformly and then immersed;

[0008] S2: the immersed material is transferred to the baking oven, the temperature in the baking oven is raised to 165 DEG C, and the immersed material is baked to carbonize the material;

[0009] S3: the carbonized solid product is taken out, ground into powder again by a pulverizer, and placed in the constant temperature zone of the tube furnace, and heated to 600 DEG C at a rate of 5 DEG C / min, and the temperature is kept for 2 hours, while nitrogen is introduced to flush for 20 minutes;

[0010] S4: the calcined product is taken out, washed repeatedly with deionized water, and the washed sample is placed in an oven to dry, to obtain a dry magnetic biochar adsorbent finished product, i.e. a halophyte-based adsorbent.

[0011] The present application also provides a halophyte-based adsorbent preparation device for realizing the halophyte-based adsorbent preparation process described above, which comprises a baking oven, the outer wall of the baking oven is fixedly connected with a first support frame, an oven body is arranged above the baking oven, the outer wall of the oven body is fixedly connected with a second support frame, the top of the first support frame is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with the second support frame, the inner wall of the oven body is provided with a baking assembly for baking the immersed material, and the inside of the oven body is provided with a discharging assembly for controlling the slow discharging of the immersed material;

[0012] The baking assembly comprises two side plates symmetrically and slidably connected to the inner wall of the furnace body, and the outer wall of each side plate is fixedly connected with a plurality of baking tables equidistantly, and the two groups of baking tables are installed in a staggered manner, and the top and bottom of each baking table is provided as an inclined surface.

[0013] Preferably, the baking assembly further comprises a heating wire arranged inside the baking table, and the top of each side plate is fixedly connected with an annular frame, and the inner wall of the furnace body and below the annular frame is fixedly connected with two stop blocks.

[0014] Preferably, the discharging assembly comprises a hopper fixedly installed on the inner wall of the furnace body and below the annular frame, the inner wall of the hopper is provided as a symmetric inclined surface, one side of the hopper is fixedly connected with a first motor, the output end of the first motor extends to the inner wall of the hopper and is fixedly connected with a spiral conveying blade, the spiral conveying blade is attached to the inner wall of the hopper, the other side of the hopper is provided with a discharge port, and the outer wall of the furnace body is provided with an inlet.

[0015] Preferably, the outer wall of the furnace body and above the inlet is fixedly connected with a second motor, the output end of the second motor extends to the inside of the furnace body and is fixedly connected with a rotating shaft, the rotating shaft is located inside the annular frame, the outer wall of the rotating shaft is fixedly connected with a cam, the top of the inner wall of the furnace body is fixedly connected with a spring, and the bottom of the spring is fixedly connected with the annular frame.

[0016] Preferably, the top of the baking table is fixedly connected with two baffle plates symmetrically, and each baffle plate is provided as a wave shape.

[0017] Preferably, the inside of the baking table is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a reciprocating screw rod, the reciprocating screw rod is rotatably connected with the baking table, the outer wall of the reciprocating screw rod is connected with a sliding block through a screw nut pair, the sliding block is slidably connected with the baking table, the top of the sliding block is fixedly connected with a scraper, and the scraper is attached to the inclined surface of the top of the baking table.

[0018] Preferably, the inner wall of the furnace body and below the annular frame is fixedly connected with a sleeve box, the inner wall of the sleeve box is slidably connected with a piston plate, the top of the piston plate is fixedly connected with a connecting shaft, the top of the connecting shaft penetrates through the sleeve box and is fixedly connected with the annular frame, the bottom of the sleeve box is fixedly connected with an air inlet pipe, the inner wall of the air inlet pipe is provided with a first one-way valve, the first one-way valve is opened from bottom to top, the inside of each side plate is provided with a flow channel, the outer wall of the sleeve box and below the piston plate is fixedly connected with two connecting pipes symmetrically, the two connecting pipes respectively extend to the inside of the two flow channels, the inner wall of the connecting pipe is provided with a second one-way valve, and the second one-way valve is opened toward the direction of the flow channel.

[0019] Preferably, the outer wall of the air inlet pipe is fixedly connected with a guide plate, the guide plate is located above the material containing hopper, the bottom of the guide plate is provided with symmetrical inclined surfaces, the guide plate is slidably connected with the side plate, two drainage plates are fixedly connected on the inclined surfaces of the bottom of the guide plate.

[0020] Preferably, a plurality of guide blocks are fixedly connected on the inclined surface of the bottom of the baking table at equal intervals, and one side of the guide block is provided with an inclined surface.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The salt plant-based adsorbent preparation process and device, by controlling the rotation of the spiral conveying blade, the material in the material containing hopper slowly flows out from the discharge port, thereby controlling the output of the impregnated material, avoiding the influence of too much impregnated material on the baking effect, and when the air inlet pipe extracts hot air, the hot air flows along the inclined surface of the drainage plate, thereby changing the movement trajectory of the hot air, so that the hot air collides with the impregnated material in the material containing hopper, thereby facilitating the pre-baking of the impregnated material in the material containing hopper which has not been discharged, and the transmission of the impregnated material by the plurality of baking tables makes the impregnated material dispersed uniformly, and the baking is more uniform and less likely to produce explosive bubbles.

[0023] 2. The salt plant-based adsorbent preparation process and device, by the cooperation of the cam and the annular frame, the plurality of baking tables are continuously vibrated downward, thereby avoiding the impregnated material adhering to the baking table and not being easily discharged, and after the impregnated material is carbonized, the vibration of the baking table facilitates the fragmentation of the large carbonized material, and the fragmented carbonized material is convenient for subsequent calcination.

[0024] 3. The salt plant-based adsorbent preparation process and device, by the guidance of the wave-shaped surface of the baffle, the flow rate of the impregnated material on the baking table is delayed, the baking effect of the heating wire on the impregnated material is improved, and by moving the scraper, the carbonized material adhering to the baking table can be scraped off, and as the scraper approaches the baffle, the carbonized material in the middle can be crushed.

[0025] 4. The halophyte-based adsorbent preparation process and device of the present application, by controlling the up and down movement of the piston plate, the hot air generated by the baking table is discharged from the bottom of the side plate and flows upward again, thereby recycling the hot air generated by baking to improve the baking efficiency of the furnace body. When passing between two baking tables, the upward flowing hot air can adhere to the floating impregnated material in circulation through the guide of the baking table bottom slope. When the hot air passes between the two baking tables, the hot air flows downward along the slope of the guide block through the guide of the slope of the guide block, impacting the downward flowing impregnated material in the baking table, improving the contact effect of hot air and impregnated material. Thus, the top of the impregnated material is heated, and the bottom is baked, improving the baking effect of the impregnated material. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described below with reference to the accompanying drawings.

[0027] Figure 1 is a perspective view of the furnace body of the present application used in cooperation with the feed inlet;

[0028] Figure 2 is a perspective view of the baking oven of the present application used in cooperation with the furnace body;

[0029] Figure 3 is a cross-sectional view of the furnace body of the present application used in cooperation with the material holding hopper;

[0030] Figure 4 is a perspective view of the baking table of the present application used in cooperation with the sleeve box;

[0031] Figure 5 is an exploded view of the baking table of the present application used in cooperation with the material holding hopper;

[0032] Figure 6 is a perspective view of the sleeve box of the present application used in cooperation with the side plate;

[0033] Figure 7 is a perspective view of the baking table of the present application used in cooperation with the scraper;

[0034] Figure 8 is a cross-sectional view of the material holding hopper of the present application used in cooperation with the sleeve box;

[0035] Figure 9 is an exploded view of the baking table of the present application used in cooperation with the guide block.

[0036] In the figure: 1, baking oven; 2, first support frame; 3, hydraulic cylinder; 4, second support frame; 5, oven body; 6, feeding port; 7, material hopper; 8, first motor; 9, spiral conveying blade; 10, discharge port; 11, ring frame; 12, side plate; 13, baking table; 14, heating wire; 15, baffle; 16, drive motor; 17, reciprocating screw rod; 18, sliding block; 19, scraper; 20, guide block; 21, box; 22, connecting shaft; 23, piston plate; 24, air inlet pipe; 25, first check valve; 26, connecting pipe; 27, second check valve; 28, flow-through groove; 29, spring; 30, guide plate; 31, drainage plate; 32, second motor; 33, rotating shaft; 34, cam; 35, stop block. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0038] As shown in the figure, the present application provides a technical solution, a halophyte-based adsorbent preparation process, which is as follows: Figures 1 to 9 S1: A certain amount of suaeda aethiopica is weighed, washed, ground, zinc chloride and ferric sulfate are added in a mass ratio of 4:1:1, deionized water is added to the mixture to just immerse the solid, and a paste is formed, and after stirring uniformly, it is left to soak;

[0039] S2: The soaked material is transferred to the baking oven 1, the temperature in the baking oven 1 is raised to 165℃, and the soaked material is baked to carbonize the soaked material;

[0040] S3: The carbonized solid product is taken out, ground again into powder with a pulverizer, the particle size of the material is uniform, the ground powder is placed in the constant temperature zone of the tube furnace, and the temperature is raised to 600℃ at a rate of 5℃ / min, and the product is calcined for 2 hours while nitrogen is introduced to flush for 20 minutes;

[0041] S4: The calcined product is taken out, washed repeatedly with deionized water, and the washed sample is placed in an oven to dry, obtaining a dry magnetic biochar adsorbent finished product, i.e., a halophyte-based adsorbent.

[0042]

[0043] ​The present invention also provides a halophyte-based adsorbent preparation device for realizing the aforementioned halophyte-based adsorbent preparation process. The device includes a baking oven 1, a first support frame 2 fixedly connected to the outer wall of the baking oven 1, a furnace body 5 arranged above the baking oven 1, a second support frame 4 fixedly connected to the outer wall of the furnace body 5, a hydraulic cylinder 3 fixedly connected to the top of the first support frame 2, the output end of the hydraulic cylinder 3 fixedly connected to the second support frame 4, a baking component for baking the impregnated material arranged on the inner wall of the furnace body 5, and a feeding component for controlling the slow feeding of the impregnated material arranged inside the furnace body 5.

[0044] The baking assembly includes two side plates 12, which are symmetrically and slidably connected to the inner wall of the furnace body 5. Several baking platforms 13 are fixedly connected at equal intervals to the outer walls of the two side plates 12. The two sets of baking platforms 13 are installed in a staggered manner, and the top and bottom of the baking platforms 13 are both set as inclined surfaces. The baking assembly also includes a heating wire 14, which is set inside the baking platform 13. A ring frame 11 is fixedly connected to the top of the two side plates 12. Two blocks 35 are symmetrically fixedly connected to the inner wall of the furnace body 5 and below the ring frame 11. The feeding assembly includes a hopper 7, which is fixedly installed on the inner wall of the furnace body 5 and below the ring frame 11. The inner wall of the hopper 7 is set as a symmetrical inclined surface. A first motor 8 is fixedly connected to one side of the hopper 7. The output end of the first motor 8 extends to the inner wall of the hopper 7 and is fixedly connected to a spiral conveying blade 9. The spiral conveying blade 9 fits against the inner wall of the hopper 7. A discharge port 10 is opened on the other side of the hopper 7. A feed port 6 is opened on the outer wall of the furnace body 5.

[0045] Through the above technical solution, the impregnating material is placed into the hopper 7 through the feed inlet 6. The first motor 8 is started, which drives the spiral conveyor blades 9 to rotate, so that the impregnating material in the hopper 7 slowly flows out from the discharge outlet 10. This controls the output of the impregnating material and avoids excessive impregnating material from affecting the baking effect. The impregnating material that flows out falls onto the baking table 13. The heating wire 14 is started to bake the impregnating material on the baking table 13. During the baking process, the impregnating material flows down the slope at the top of the baking table 13. After falling onto the baking table 13 below, it continues to flow down the slope at the top of the baking table 13, so that the impregnating material is evenly dispersed, making the baking more uniform and less likely to produce explosive bubbles. The impregnating material baked on several baking tables 13 falls into the baking oven 1. The hydraulic cylinder 3 is started, which pushes the second support frame 4 to move upward, driving the furnace body 5 to move upward, thereby separating the furnace body 5 from the baking oven 1, making it easier to remove the carbonized impregnating material.

[0046] Specifically, the outer wall of the furnace body 5 and located above the feeding port 6 is fixedly connected with a second motor 32, the output end of the second motor 32 extends to the inside of the furnace body 5 and is fixedly connected with a rotating shaft 33, the rotating shaft 33 is located in the inside of the annular frame 11, the outer wall of the rotating shaft 33 is fixedly connected with a cam 34, the top of the inner wall of the furnace body 5 is fixedly connected with a spring 29, and the bottom of the spring 29 is fixedly connected with the annular frame 11.

[0047] Through the above technical scheme, when the impregnated material flows on the inclined surface of the baking table 13, the second motor 32 is started to drive the rotating shaft 33 to rotate, so that the cam 34 rotates, when the protruding end of the cam 34 rotates to the top, the annular frame 11 is pushed to move upwards, driving the several baking tables 13 to move upwards at the same time and compressing the spring 29, when the protruding end of the cam 34 rotates to the bottom, the extrusion of the cam 34 is lost, and under the action of the gravity of the several baking tables 13 and the spring 29, the several baking tables 13 move downwards and vibrate, thereby avoiding that the impregnated material is adhered to the baking table 13 and is not easy to discharge.

[0048] Specifically, the top of the baking table 13 is fixedly connected with two baffles 15 which are symmetrically arranged, and the two baffles 15 are both arranged in a wave shape; the inside of the baking table 13 is fixedly connected with a driving motor 16, the output end of the driving motor 16 is fixedly connected with a reciprocating screw rod 17, the reciprocating screw rod 17 is rotatably connected with the baking table 13, the outer wall of the reciprocating screw rod 17 is connected with a sliding block 18 through a screw nut pair, the sliding block 18 is slidably connected with the baking table 13, the top of the sliding block 18 is fixedly connected with a scraper 19, and the scraper 19 is attached to the inclined surface of the top of the baking table 13.

[0049] Through the above technical scheme, the impregnated material falling on the baking table 13 flows downwards between the two baffles 15, and the flow speed of the impregnated material on the baking table 13 is delayed through the guidance of the wave-shaped surface of the baffle 15, so as to improve the baking effect of the heating wire 14 on the impregnated material, after the impregnated material is carbonized, part of the impregnated material is adhered to the baking table 13, the driving motor 16 is started to drive the reciprocating screw rod 17 to rotate, so that the sliding block 18 moves back and forth, driving the scraper 19 to move back and forth, and the carbonized material adhered to the baking table 13 is scraped off, as the scraper 19 approaches the baffle 15, the carbonized material in the middle can be crushed, and in cooperation with the vibration of the baking table 13, the large pieces of carbonized material can be easily broken, and the crushed carbonized material is convenient for subsequent calcination.

[0050] Specifically, the inner wall of the furnace body 5 and below the annular frame 11 is fixedly connected with a sleeve box 21, the inner wall of the sleeve box 21 is slidably connected with a piston plate 23, the top of the piston plate 23 is fixedly connected with a connecting shaft 22, the top of the connecting shaft 22 penetrates the sleeve box 21 and is fixedly connected with the annular frame 11, the bottom of the sleeve box 21 is fixedly connected with an air inlet pipe 24, the inner wall of the air inlet pipe 24 is provided with a first one-way valve 25, the first one-way valve 25 is opened from bottom to top, the interiors of the two side plates 12 are each provided with a flow-through groove 28, the outer wall of the sleeve box 21 and below the piston plate 23 is fixedly connected with two connecting pipes 26 in a symmetrical manner, the two connecting pipes 26 respectively extend to the interiors of the two flow-through grooves 28, the inner wall of the connecting pipe 26 is provided with a second one-way valve 27, and the second one-way valve 27 is opened towards the direction of the flow-through groove 28.

[0051] Through the above technical scheme, the hot air generated by the several baking tables 13 flows to the top of the furnace body 5 and accumulates on the top of the furnace body 5, when the annular frame 11 moves up and down, the connecting shaft 22 is driven to move up and down, when the connecting shaft 22 moves upward, the piston plate 23 is driven to move upward, through the pulling of the piston plate 23, at this time, the second one-way valve 27 is in a closed state, the hot air accumulated above the furnace body 5 passes through the first one-way valve 25 upward and enters the sleeve box 21 along the air inlet pipe 24, when the connecting shaft 22 moves downward, the piston plate 23 is pushed to move downward, along with the extrusion of the piston plate 23, the first one-way valve 25 is in a closed state, the hot air in the sleeve box 21 passes through the second one-way valve 27 and enters the connecting pipe 26, and then enters the flow-through groove 28 along the connecting pipe 26, the hot air entering the flow-through groove 28 is discharged from the bottom of the side plate 12 and flows upward again, thereby recycling the hot air generated by baking, improving the baking efficiency of the furnace body 5, when passing between the two baking tables 13, the hot air flowing upward is guided by the inclined surface at the bottom of the baking table 13, so that the hot air can adhere to the floating impregnated material in the flow, thereby facilitating the heating of the top of the impregnated material, cooperating with the bottom baking, improving the baking effect of the impregnated material.

[0052] Specifically, the outer wall of the air inlet pipe 24 is fixedly connected with a guide plate 30, the guide plate 30 is above the material hopper 7, the bottom of the guide plate 30 is provided with symmetrical inclined surfaces, the guide plate 30 is slidably connected with the side plate 12, two drainage plates 31 are fixedly connected to the inclined surfaces of the bottom of the guide plate 30 in a symmetrical manner, and the outer walls of the two drainage plates 31 are each provided with an inclined surface.

[0053] Through the above technical scheme, the hot air floating upward is concentrated at the air inlet pipe 24 by the guide plate 30, when the air inlet pipe 24 extracts hot air, the hot air flows along the inclined surfaces of the drainage plates 31, thereby changing the movement track of the hot air, so that the hot air collides with the impregnated material in the material hopper 7, thereby facilitating the pre-baking of the impregnated material which has not been discharged in the material hopper 7.

[0054] Specifically, a plurality of guide blocks 20 are fixedly connected on the slope of the bottom of the baking table 13 at equal intervals, and one side of the guide block 20 is provided as a slope.

[0055] Through the above technical scheme, when the hot gas passes between the two baking tables 13, the hot gas is guided along the slope of the guide block 20 to flow downward, and the hot gas collides with the impregnated material flowing downward on the baking table 13, thereby improving the contact effect of the hot gas and the impregnated material.

[0056] In use, the impregnated material is put into the hopper 7 along the feeding port 6, the first motor 8 is started to drive the spiral conveying blade 9 to rotate, the impregnated material in the hopper 7 slowly flows out from the discharging port 10, thereby controlling the output of the impregnated material, avoiding the influence of too much impregnated material on the baking effect, the flowing impregnated material falls on the baking table 13, the heating wire 14 is started to bake the impregnated material on the baking table 13, the impregnated material flows down along the slope on the top of the baking table 13 during baking, and after falling on the baking table 13 below, continues to flow down along the slope on the top of the baking table 13, thereby making the impregnated material disperse uniformly, and further making the baking more uniform, and not easy to produce explosive bubbles, when the impregnated material flows on the slope of the baking table 13, the second motor 32 is started to drive the rotating shaft 33 to rotate, the cam 34 rotates, when the protruding end of the cam 34 rotates to the upper side, the annular frame 11 is pushed to move upward, drives the several baking tables 13 to move upward at the same time, and compresses the spring 29, when the protruding end of the cam 34 rotates to the lower side, loses the extrusion of the cam 34, under the action of the gravity of the several baking tables 13 and the spring 29, the several baking tables 13 move downward and vibrate, thereby avoiding that the impregnated material is adhered to the baking table 13 and is not easy to be discharged, the impregnated material falling on the baking table 13 flows down between the two baffles 15, is guided by the wave surface of the baffle 15, delays the flow speed of the impregnated material on the baking table 13, improves the baking effect of the heating wire 14 on the impregnated material, after the carbonization of the impregnated material, part of the impregnated material is adhered to the baking table 13, the driving motor 16 is started to drive the reciprocating screw rod 17 to rotate, the sliding block 18 reciprocates forward and backward, drives the scraper 19 to reciprocate forward and backward, scrapes off the carbonized material adhered to the baking table 13, as the scraper 19 approaches the baffle 15, the carbonized material in the middle can be crushed, and cooperates with the vibration of the baking table 13, facilitates the crushing of the large carbonized material, the crushed carbonized material is convenient for subsequent calcination, the heat generated by the several baking tables 13 flows to the top of the furnace body 5, and accumulates on the top of the furnace body 5, through the guide plate 30 arranged, the hot air floating is concentrated at the air inlet pipe 24, when the annular frame 11 moves up and down, drives the connecting shaft 22 to move up and down, when the connecting shaft 22 moves upward, drives the piston plate 23 to move upward, through the cooperation of the first one-way valve 25 and the second one-way valve 27, the hot air accumulated above the furnace body 5 flows into the sleeve box 21 along the air inlet pipe 24, when the connecting shaft 22 moves downward, pushes the piston plate 23 to move downward, through the extrusion of the piston plate 23, cooperates with the first one-way valve 25 and the second one-way valve 27, the hot air in the sleeve box 21 flows into the flow channel 28 along the connecting pipe 26, the hot air entering the flow channel 28 is discharged from the bottom of the side plate 12, and flows upward again, thereby making the heat generated by baking circulate, improving the baking efficiency of the furnace body 5, when passing between the two baking tables 13, is guided by the slope on the bottom of the baking table 13, the upward flowing hot air can adhere to the flowing impregnated material and float up,Therefore, the top of the impregnated material is heated, which matches the bottom baking, improves the baking effect of the impregnated material, and when the hot air passes between the two baking tables 13, the hot air is guided along the inclined surface of the guide block 20, and the hot air flows along the inclined surface of the guide block 20, and the impregnated material on the baking table 13 is impacted by the downward flow, which improves the contact effect of the hot air and the impregnated material, and when the air inlet pipe 24 extracts hot air, the hot air flows along the inclined surface of the guide plate 31, thereby changing the movement track of the hot air, so that the hot air impacts the impregnated material in the material hopper 7, thereby facilitating pre-baking of the impregnated material in the material hopper 7. The impregnated material baked by the plurality of baking tables 13 falls into the baking furnace 1, the hydraulic cylinder 3 is started, the second support frame 4 is pushed to move upward, the furnace body 5 is driven to move upward, so that the furnace body 5 is separated from the baking furnace 1, and the carbonized impregnated material is taken out.

[0057] The above front, rear, left, right, top and bottom are based on the drawings of the specification Figure 1 The front of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0059] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a halophyte-based adsorbent, characterized in that, The oven includes a baking oven (1), the outer wall of which is fixedly connected to a first support frame (2), a furnace body (5) is provided above the baking oven (1), the outer wall of which is fixedly connected to a second support frame (4), a hydraulic cylinder (3) is fixedly connected to the top of the first support frame (2), the output end of the hydraulic cylinder (3) is fixedly connected to the second support frame (4), the inner wall of the furnace body (5) is provided with a baking component for baking the impregnated material, and the interior of the furnace body (5) is provided with a feeding component for controlling the slow feeding of the impregnated material; The baking assembly includes two side plates (12), which are symmetrically slidably connected to the inner wall of the oven body (5). Several baking tables (13) are fixedly connected to the outer walls of the two side plates (12) at equal intervals. The two sets of baking tables (13) are installed in a staggered manner. The top and bottom of the baking tables (13) are both set as inclined surfaces. The baking assembly also includes a heating wire (14), which is disposed inside the baking table (13). A ring frame (11) is fixedly connected to the top of the two side plates (12). Two blocks (35) are symmetrically fixedly connected to the inner wall of the oven body (5) and below the ring frame (11). The feeding assembly includes a hopper (7), which is fixedly installed on the inner wall of the furnace body (5) and located below the annular frame (11). The inner wall of the hopper (7) is set as a symmetrical inclined surface. A first motor (8) is fixedly connected to one side of the hopper (7). The output end of the first motor (8) extends to the inner wall of the hopper (7) and is fixedly connected to a spiral conveying blade (9). The spiral conveying blade (9) fits against the inner wall of the hopper (7). A discharge port (10) is opened on the other side of the hopper (7). A feed port (6) is opened on the outer wall of the furnace body (5). A second motor (32) is fixedly connected to the outer wall of the furnace body (5) and above the feed inlet (6). The output end of the second motor (32) extends into the interior of the furnace body (5) and is fixedly connected to a rotating shaft (33). The rotating shaft (33) is located inside the ring frame (11). A cam (34) is fixedly connected to the outer wall of the rotating shaft (33). A spring (29) is fixedly connected to the top of the inner wall of the furnace body (5). The bottom of the spring (29) is fixedly connected to the ring frame (11).

2. The apparatus for preparing a halophyte-based adsorbent according to claim 1, characterized in that, The top of the baking table (13) is symmetrically fixedly connected to two baffles (15), both of which are set to be wave-shaped.

3. The apparatus for preparing a halophyte-based adsorbent according to claim 2, characterized in that, A drive motor (16) is fixedly connected inside the baking table (13). A reciprocating screw (17) is fixedly connected to the output end of the drive motor (16). The reciprocating screw (17) is rotatably connected to the baking table (13). A slider (18) is connected to the outer wall of the reciprocating screw (17) through a screw nut pair. The slider (18) is slidably connected to the baking table (13). A scraper (19) is fixedly connected to the top of the slider (18). The scraper (19) fits against the inclined surface of the top of the baking table (13).

4. The apparatus for preparing a halophyte-based adsorbent according to claim 3, characterized in that, A sleeve (21) is fixedly connected to the inner wall of the furnace body (5) and below the annular frame (11). A piston plate (23) is slidably connected to the inner wall of the sleeve (21). A connecting shaft (22) is fixedly connected to the top of the piston plate (23). The top of the connecting shaft (22) passes through the sleeve (21) and is fixedly connected to the annular frame (11). An air inlet pipe (24) is fixedly connected to the bottom of the sleeve (21). A first one-way valve (25) is provided on the inner wall of the air inlet pipe (24). The first one-way valve (25) opens from bottom to top. Both side plates (12) have flow grooves (28) inside. The outer wall of the sleeve (21) and below the piston plate (23) are symmetrically fixed with two connecting pipes (26). The two connecting pipes (26) extend into the interior of the two flow grooves (28). The inner wall of the connecting pipe (26) is provided with a second one-way valve (27). The second one-way valve (27) opens in the direction of the flow groove (28).

5. The apparatus for preparing a halophyte-based adsorbent according to claim 4, characterized in that, The outer wall of the air inlet pipe (24) is fixedly connected to a guide plate (30). The guide plate (30) is located above the hopper (7). The bottom of the guide plate (30) is set as a symmetrical inclined surface. The guide plate (30) is slidably connected to the side plate (12). Two diversion plates (31) are symmetrically fixedly connected to the inclined surface at the bottom of the guide plate (30). The outer walls of the two diversion plates (31) are both set as inclined surfaces.

6. The apparatus for preparing a halophyte-based adsorbent according to claim 5, characterized in that, Several guide blocks (20) are fixedly connected at equal intervals on the inclined surface at the bottom of the baking table (13), and one side of the guide block (20) is set as an inclined surface.

7. An application of the apparatus for preparing halophyte-based adsorbents according to any one of claims 1-6, used to implement a method for preparing halophyte-based adsorbents, characterized in that: The preparation method is as follows: S1: Weigh a certain amount of Suaeda salsa, wash it, grind it, add zinc chloride and ferric sulfate in a mass ratio of 4:1:1, add deionized water to the mixture, stir evenly and let it stand to soak. S2: Transfer the impregnated material to the baking oven (1), raise the temperature in the baking oven (1) to 165°C, and bake the impregnated material to carbonize the impregnated material; S3: Take out the solid product after impregnation and carbonization, grind it again into powder with a pulverizer, place the ground powder in the constant temperature zone of the tube furnace, heat it to 600℃ at 5℃ / min, keep it at the temperature for 2 hours, and at the same time introduce nitrogen gas and continuously rinse for 20 minutes. S4: Take out the calcined product, wash it repeatedly with deionized water, put the washed sample into an oven to dry it, and obtain the dried magnetic biochar adsorbent product, namely halophyte-based adsorbent.

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