Preparation method and equipment of composite bentonite loaded microorganisms

Abstract

The present invention relates to the technical field of bentonite, and in particular to a preparation method and equipment for composite bentonite-loaded microorganisms, including forming a core body precursor, and wrapping a shell outside the core body precursor, and then forming a double-layer core-shell biochar bentonite composite precursor by extrusion, and then passing nitrogen to protect it, thereby obtaining graded porous carbon, and then removing the substances in the macropores in the shell structure, and then removing the washing solution by centrifugation and drying, thereby obtaining a double-layer core-shell biochar bentonite complex; finally, the bacterial suspension is evenly added to the surface of the double-layer core-shell biochar bentonite complex and mixed evenly, and inoculated for light-proof culture, and then after each proliferation culture for 3 days, immobilized biochar bentonite composite particles are obtained. Therefore, the load of microorganisms and nutrients is increased by a double-layer core-shell structure, and the adsorption function of the material is increased.

Description

Technical Field

[0001] The invention relates to the technical field of bentonite, in particular to a preparation method and equipment for composite bentonite loaded with microorganisms. Background Art

[0002] Bentonite is a non-metallic mineral with montmorillonite as the main mineral component, and bentonite can be compounded with other substances to become composite bentonite, and adsorb microorganisms on the outside of the composite bentonite to repair the soil. However, due to the small pore size of bentonite, it is difficult to adsorb a large number of microorganisms; and because of the small pore size, nutrients enter less or no, but microorganisms need sufficient nutrients to reproduce, grow and metabolize quickly, so the microorganisms adsorbed in the bentonite may not get enough nutrients and die quickly; at the same time, organic pollutants in the soil (to some extent, nutrients) migrate very slowly, especially after the bentonite isolation wall is set up, so it is difficult for microorganisms adsorbed in the bentonite to obtain the nutrients provided by the soil. In summary, due to the small pore size of bentonite, it is difficult to adsorb a large number of microorganisms and nutrients, and it is difficult for bentonite to rely on the soil to provide nutrients to microorganisms.

[0003] Therefore, it is necessary to prepare a composite bentonite that can carry more microorganisms and has better adsorption function, so that it can be used as a barrier and remediation material for organic pollution on the site and realize the integrated in-situ adsorption-degradation of organic pollutants on the site. Summary of the invention

[0004] The purpose of the present invention is to provide a preparation method and equipment for composite bentonite loaded with microorganisms, and a macroporous and porous structure is achieved through a foaming agent and a pore-forming agent, and a graded porous carbon is obtained through nitrogen and roasting, and a double-layer shell-core structure is used to increase the loading of microorganisms and nutrients, and the adsorption function of the material is also increased, thereby solving the problem that bentonite has a poor loading effect on microorganisms and nutrients.

[0005] The object of the present invention is achieved in that:

[0006] The preparation method of composite bentonite loaded microorganisms comprises:

[0007] Step 1: The core body is made of the following raw materials in parts by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of humic acid and 10-15 parts of foaming agent. Each component is sequentially put into water and mixed at room temperature to form a core body precursor;

[0008] Step 2: The shell is made of the following raw materials in parts by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of pore formers and 10-15 parts of adhesives. The components are mixed at room temperature and coated on the outside of the core precursor, and extruded to form a double-layer core-shell biochar bentonite composite precursor;

[0009] Step 3: placing the double-layer core-shell biochar bentonite composite precursor in a tubular furnace, passing nitrogen gas to protect it, and then calcining it at 600-700° C. for 2-5 hours to obtain hierarchical porous carbon;

[0010] Step 4: placing the graded porous carbon in a water washing solution with negative pressure to remove substances in the macropores of the shell structure, and then removing the water washing solution by centrifugation and drying to obtain a double-layer core-shell biochar bentonite complex;

[0011] Step 5: Add the bacterial suspension evenly to the surface of the double-layer core-shell biochar bentonite complex and mix evenly. The inoculation amount is 2-5% of the weight of the double-layer core-shell biochar bentonite complex. After sealing, place it in a 28°C constant temperature incubator for light-proof culture. Then, add proliferation culture medium at 2 ml per gram of carrier every day. After 3 days of proliferation culture, immobilized biochar bentonite composite particles can be obtained.

[0012] Preferably, the proliferation medium is made of the following raw materials in parts by weight: 5-8 parts of earthworm homogenate, 2-6 parts of seawater, 2-6 parts of natural ore powder, 5-30 parts of dairy products, 1000 parts of deionized water and 2-6 parts of zeolite;

[0013] Or / and, the core body is made of the following raw materials in parts by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of humic acid, 10-15 parts of foaming agent and 10-15 parts of zeolite.

[0014] A preparation device for microbial compound fertilizer for soil remediation, which is used for mixing and extrusion and includes a base, and the base includes a mixing area and an extrusion area, and the height of the mixing area is higher than the extrusion area;

[0015] The mixing zone includes a mixing chamber 1 and a mixing chamber 2 which are operated synchronously, wherein the mixing chamber 1 is used to mix the raw materials of the core body, and the mixing chamber 2 is used to mix the raw materials of the shell body, and the extrusion zone includes a lower mold and a movable upper mold, and the lower mold is provided with a groove rail 1, a groove rail 2 and a forming groove, and is provided with a movable guide plate and a limit ring;

[0016] The groove track 1 is connected with the forming groove and is connected with the mixing bin 1 through the transport guide track 1, and the groove track 2 is connected with the forming groove and is connected with the mixing bin 2 through the transport guide track 2, and the guide plate is provided with a groove track 3, the guide plate is used to block the groove track 1 from being connected with the forming groove, and the limit ring is used to divide the forming groove into two areas, namely the core area and the shell area;

[0017] When the limiting ring moves upward and divides the forming groove into two areas, the guide plate moves toward the forming groove and connects the groove track one with the forming groove through the groove track three, so that the mixed core body raw materials move to the core body area.

[0018] Preferably, the extrusion zone comprises a mounting frame which can rotate and move up and down, and an upper mold and a clamping member for clamping the extruded composite precursor are arranged at the bottom of the mounting frame, so that the composite precursor is moved to the next step through the clamping member.

[0019] Preferably, the mixing bin 1 and the mixing bin 2 both include a discharge pipe, and a movable baffle is provided on the discharge pipe, and the baffle is used to prevent the raw materials from coming out;

[0020] A limiting portion is provided at one end of the baffle plate located in the discharge pipe, and the limiting portion abuts against the inner wall of the discharge pipe to prevent the baffle plate from moving out of the discharge pipe.

[0021] Preferably, the guide plate is close to one end of the forming groove and is in line with the inner wall of the forming groove;

[0022] Or / and, the base is provided with an elongated hole, and the guide plate is connected to the driving source one through a connecting rod one, and the connecting rod one passes through the elongated hole and is connected to the driving source one, and the connecting rod one moves in the elongated hole;

[0023] Or / and, the lower mold is provided with a groove track four corresponding to the guide plate, and the groove track four is connected to the groove track one, and the guide plate moves in the groove track four.

[0024] Preferably, the top of the limiting ring matches the bottom surface of the inner wall of the forming groove;

[0025] Or / and, the lower mold and the base are respectively provided with annular hole one and annular hole two corresponding to the limiting ring, and the top of the limiting ring passes through the annular hole two and the annular hole one and is located in the molding groove, and the bottom of the limiting ring is connected to the driving source two.

[0026] Preferably, the mixing bin 1 and the mixing bin 2 are both arranged on the base through a mounting seat, and an annular plate is arranged at the bottom of the mixing bin 1 and the bottom of the mixing bin 2, and two spheres are arranged at the bottom of the annular plate, and the mounting seat is provided with an annular groove corresponding to the spheres, and the spheres move in the annular groove;

[0027] Or / and, the mixing chamber one and the mixing chamber two are connected to the driving source three through the rotating shaft one and the rotating shaft two respectively, and the rotating shaft one and the rotating shaft two are respectively provided with gear one and gear two, and gear three is meshed with gear one and gear two, and gear three is connected to the driving source three and rotates under the drive of the driving source three, thereby driving gear one and gear two to rotate and driving the mixing chamber one and the mixing chamber two to rotate.

[0028] Preferably, the base is provided with a mounting rod that can rotate and move up and down, and a mounting frame is provided on the top of the mounting rod, and the base is provided with a guide sleeve corresponding to the mounting rod to limit the moving direction of the mounting rod and prevent the mounting rod from tilting;

[0029] Or / and, a mounting rod that can rotate and move up and down is provided on the base, and a driving source four is built in the base, a mounting frame is provided on the top of the mounting rod, and a gear four and a movable plate are provided at the bottom of the mounting rod, and the movable plate is connected to the driving source five so that it moves up and down under the drive of the driving source five and drives the mounting rod to move up and down, and when it moves to a certain position, the gear four is connected to the driving source four and rotates and moves under the drive of the driving source four and drives the mounting rod to rotate.

[0030] Preferably, the upper surface of the lower mold is an inclined surface to facilitate the movement of the raw material;

[0031] Or / and, the forming groove includes a hemispherical segment and a cylindrical segment;

[0032] Or / and, the lower mold and the upper mold are both detachable, so as to facilitate cleaning and replacement of different sizes to prepare composite precursors of different sizes.

[0033] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0034] 1. The present invention realizes macroporous and porous structure through foaming agent and pore-forming agent, obtains graded porous carbon through nitrogen and roasting, and cooperates with double-layer core-shell structure to increase the load of microorganisms and nutrients, and also increases the adsorption function of materials.

[0035] 2. The present invention provides nutrients for microorganisms through earthworm homogenization, and can screen microorganisms to improve their biological activity. Seawater and natural mineral powder are rich in various trace elements and minerals such as iron, copper, calcium, silicate, magnesium, manganese, etc., which can promote the reproduction and development of microorganisms.

[0036] 3. The present invention uses zeolite as a slow-release agent for fertilizer, so that a large amount of nutrients are slowly released, thereby making the fertility strong and long-lasting.

[0037] 4. The present invention realizes synchronous mixing of the core and the shell by setting the synchronously operated mixing chamber 1 and mixing chamber 2, and then the guide plate and the limit ring are set to move the raw materials of the core and the shell to the appropriate position for extrusion. Compared with manual production, the equipment improves efficiency and saves time. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the present invention.

[0039] Figure 2 Schematic diagram of the structure of the mixing zone.

[0040] Figure 3 for Figure 2 Schematic diagram of the split structure.

[0041] Figure 4 Schematic diagram of the structure of the baffle.

[0042] Figure 5 It is a schematic diagram of the structure of the bottom of the mixing bin.

[0043] Figure 6 Schematic diagram of the structure of the extrusion zone.

[0044] Figure 7 for Figure 6 Schematic diagram of the split structure.

[0045] Figure 8 It is a schematic diagram of the structure of the synchronization of the guide plate and the limit ring.

[0046] Fig. 9 It is a schematic diagram of the structure of the lower mold.

[0047] Fig.10 This is a diagram showing the effect of composite bentonite adsorption and decomposition.

[0048] Reference numerals: 1-base; 11-bottom shell; 12-upper cover 1; 13-upper cover 2; 17-guide sleeve;

[0049] 21-mixing bin 1; 22-mixing bin 2; 23-discharging pipe; 24-baffle; 241-limiting part;

[0050] 242- rack; 25- mounting seat; 251- annular groove; 26- annular plate; 261- sphere; 271- rotating shaft 1;

[0051] 272-shaft 2; 273-gear 1; 274-gear 2; 275-gear 3; 28-gear 5;

[0052] 3-lower mold; 31-groove rail one; 32-groove rail two; 33-forming groove; 34-guide plate; 341-groove rail three;

[0053] 342-connecting rod 1; 343-worm 1; 35-limiting ring; 351-worm 2; 36-turbine 1;

[0054] 371-turbine 2; 372-turbine 3; 38-annular hole 1; 39-groove track 4;

[0055] 41-upper mold; 42-mounting frame; 43-clamping piece; 44-mounting rod; 441-gear four;

[0056] 442-moving plate; 51-transport rail 1; 52-transport rail 2. DETAILED DESCRIPTION

[0057] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0058] A method for preparing a loaded microorganism, comprising:

[0059] Step 1: The core body is made of the following raw materials in parts by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of humic acid and 10-15 parts of foaming agent. Each component is put into water in turn and mixed at room temperature to form a core body precursor.

[0060] Step 2: The shell will be made of the following raw materials in proportion by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of pore-forming agent and 10-15 parts of adhesive. The components are mixed at room temperature and coated on the outside of the core precursor, and extruded to form a double-layer core-shell biochar bentonite composite precursor.

[0061] The setting of the foaming agent can allow the core body to form a macroporous structure through the foaming technology, and the setting of the pore-forming agent can form a porous structure.

[0062] Step 3: placing the double-layer core-shell biochar bentonite composite precursor in a tubular furnace and protecting it with nitrogen, and then calcining it at 600-700° C. for 2-5 hours to obtain graded porous carbon.

[0063] After the double-layer core-shell biochar bentonite composite precursor is formed into a macroporous structure through foaming technology, nitrogen is used to further increase the porosity of the carbon material. Then, after roasting, cracking and intercalation of anode ions are used to produce more micropores and small mesopores, forming a porous carbon with a hierarchical pore structure of micropores, mesopores and macropores.

[0064] Step 4: placing the graded porous carbon into a water washing solution with negative pressure to remove the substances in the macropores of the shell structure, and then removing the water washing solution by centrifugation and drying to obtain a double-layer core-shell biochar bentonite complex.

[0065] Step 5: Add the bacterial suspension evenly to the surface of the double-layer core-shell biochar bentonite complex and mix evenly. The inoculation amount is 2-5% of the weight of the double-layer core-shell biochar bentonite complex. After sealing, place it in a 28°C constant temperature incubator for light-proof culture. Then, add proliferation culture medium at 2 ml per gram of carrier every day. After 3 days of proliferation culture, immobilized biochar bentonite composite particles can be obtained.

[0066] Therefore, in actual use, a macroporous and porous structure is achieved through foaming agents and pore-forming agents, and graded porous carbon is obtained through nitrogen and roasting, and a double-layer core-shell structure is used to increase the load of microorganisms and nutrients, and also increase the adsorption function of the material.

[0067] Therefore, organic pollutants can be adsorbed by physical adsorption and pore interception of graded porous carbon, and degraded by microorganisms. Therefore, the present invention can be used as a barrier and repair material for organic pollution on the site, realizing the integration of in-situ adsorption and degradation of organic pollutants on the site, thereby repairing the soil and allowing plants to grow better.

[0068] Meanwhile, the proliferation culture medium is prepared from the following raw materials in parts by weight: 5-8 parts of earthworm homogenate, 2-6 parts of seawater, 2-6 parts of natural ore powder, 5-30 parts of dairy products and 1000 parts of deionized water.

[0069] Among them, earthworm homogenate can not only provide nutrients for microorganisms, but also screen microorganisms and improve their biological activity. Seawater and natural mineral powder are rich in iron, copper, calcium, silicate, magnesium, manganese and other trace elements and minerals, which can promote the reproduction and development of microorganisms.

[0070] Moreover, as the amount of raw materials in the proliferation medium increases, it is more conducive to the growth of microorganisms until it reaches the intermediate value, and then slows down as it increases.

[0071] The actual effects of the core and shell having different weight proportions of raw materials are shown in Table 1.

[0072] Table 1 Actual effects of raw materials with different weight fractions

[0073]

[0074] Secondly, the core body is made of the following raw materials in parts by weight: 70-80 parts of biochar, 40-50 parts of bentonite, 10-15 parts of humic acid, 10-15 parts of foaming agent and 10-15 parts of zeolite.

[0075] Therefore, in actual use, by setting up zeolite, zeolite is used as a slow-release agent for fertilizer, so that a large amount of nutrients are slowly released, thereby making the fertility strong and long-lasting. Compared with not adding zeolite, adding zeolite will have a longer service life.

[0076] Moreover, steps one and two are usually done manually. In order to improve efficiency and save time, a preparation device for composite bentonite loaded microorganisms is developed. The specific structure is as follows: Figure 1-Figure 9 As shown, it is used for mixing and extruding and comprises a base 1, wherein the base 1 comprises a mixing zone and an extruding zone, and the height of the mixing zone is higher than that of the extruding zone.

[0077] The mixing zone includes a mixing chamber 1 21 and a mixing chamber 22 which operate synchronously, and the mixing chamber 1 21 is used to mix the raw materials of the core, and the mixing chamber 22 is used to mix the raw materials of the shell. At the same time, the extrusion zone includes a lower mold 3 and a movable upper mold 41, and the lower mold 3 is provided with a groove track 1 31, a groove track 2 32 and a forming groove 33, and is provided with a movable guide plate 34 and a limit ring 35.

[0078] Secondly, the groove track 1 31 is connected with the forming groove 33 and is connected with the mixing bin 1 21 through the transport guide track 1 51, and the groove track 2 32 is connected with the forming groove 33 and is connected with the mixing bin 2 22 through the transport guide track 2 52, and the guide plate 34 is provided with a groove track 341, and the guide plate 34 is used to block the groove track 1 31 from being connected with the forming groove 33, and the limit ring 35 is used to divide the forming groove 33 into two areas, namely the core area and the shell area.

[0079] Therefore, in actual use, the mixing area mixes the raw materials and transports them to the extrusion area through the transport guide rail. At this time, the raw materials of the core body are first allowed to flow to the forming groove 33, and after a period of time, the limit ring 35 moves up and divides the forming groove 33 into two areas. The guide plate 34 moves toward the direction close to the forming groove 33 and connects the groove track 1 31 with the forming groove 33 through the groove track three 341, so that the mixed core body raw materials will move to the core body area.

[0080] At the same time, after a period of time, the limit ring 35 is moved down and the guide plate 34 is moved away from the molding groove 33 so that the groove track 31 is disconnected from the molding groove 33. Then, after a period of time, the raw material transportation is stopped, and the upper mold 41 is moved down to extrude the raw material in the molding groove 33, thereby forming a composite precursor.

[0081] Therefore, the present invention realizes synchronous mixing of the core and the shell by setting the synchronously operated mixing chamber 1 21 and the mixing chamber 2 22, and then the guide plate 34 and the limit ring 35 are set to move the raw materials of the core and the shell to the appropriate position for extrusion.

[0082] The base 1 includes a bottom shell 11, an upper cover 12 and an upper cover 2 13, and the upper cover 1 12 is provided with a mixing chamber 1 21 and a mixing chamber 2 22, and the upper cover 2 13 is provided with a lower mold 3 and a movable upper mold 41.

[0083] like Figure 6 and Figure 7 As shown, the related structure of the upper mold 41 is: first, the extrusion area includes a mounting frame 42 that can rotate and move up and down, and the upper mold 41 and a clamping member 43 for clamping the extruded composite precursor are arranged at the bottom of the mounting frame 42, and the composite precursor is moved to the next step through the clamping member 43.

[0084] The clamping member 43 is a clamping cylinder, and the related structure of the mounting frame 42 is as follows: first, a mounting rod 44 which can rotate and move up and down is arranged on the base 1, and the mounting frame 42 is arranged on the top of the mounting rod 44, and the base 1 is provided with a guide sleeve 17 corresponding to the mounting rod 44.

[0085] Therefore, in actual use, the guide sleeve 17 is provided to limit the moving direction of the mounting rod 44 and prevent the mounting rod 44 from tilting, and a bearing is provided between the guide sleeve 17 and the mounting rod 44 .

[0086] At the same time, the driving structure of the mounting rod 44 is as follows: first, a driving source four is built into the base 1, and a gear four 441 and a moving plate 442 are provided at the bottom of the mounting rod 44, and the moving plate 442 is connected to the driving source five so that it moves up and down under the drive of the driving source five and drives the mounting rod 44 to move up and down.

[0087] Therefore, in actual use, when the mounting rod 44 moves to a certain position, the gear 441 is connected to the driving source 4 and rotates and moves under the driving of the driving source 4, and drives the mounting rod 44 to rotate. The driving source 5 is a cylinder, and the driving source 4 is a motor.

[0088] like Figure 2-Figure 5 As shown, the related structures of mixing bin 1 21 and mixing bin 2 22 are as follows: first, mixing bin 1 21 and mixing bin 2 22 both include a discharge pipe 23, and a movable baffle 24 is provided on the discharge pipe 23, and a limiting portion 241 is provided at one end of the baffle 24 located in the discharge pipe 23.

[0089] Therefore, in actual use, the baffle 24 is provided to block the raw material from coming out, and the over-limiting portion 241 abuts against the inner wall of the discharge pipe 23 to prevent the baffle 24 from moving out of the discharge pipe 23.

[0090] The movement of the baffle plate 24 is implemented by a cylinder, and the baffle plate 24 and the inner wall of the discharge pipe 23 have convex strips and grooves that cooperate to play a guiding role.

[0091] At the same time, the base 1 moves to open a hole corresponding to the baffle 24, and a limit block is set above the hole of the baffle 24 to play a limiting role, and a convex strip and a groove are set between the limit block and the base 1 to achieve guidance. At the same time, for easy installation, the baffle 24 can be divided into two parts, upper and lower.

[0092] Moreover, the baffles 24 of the mixing chamber 1 21 and the mixing chamber 2 22 can move synchronously, but the height of the mixing chamber 1 21 is higher than that of the mixing chamber 2 22 so that the time for the core raw material to reach the molding groove 33 is longer.

[0093] The synchronous moving structure adopts a rack 241 and a gear 28, that is, the baffle 24 is provided with a rack 242, and the base 1 is built with a rotatable gear 28, and the gear 28 is connected to a motor, and the gear 28 is meshed with the rack 242, so when the gear 28 rotates, the rack 242 moves.

[0094] At the same time, the mixing bin 1 21 and the mixing bin 2 22 are both arranged on the base 1 through the mounting seat 25, and an annular plate 26 is provided at the bottom of the mixing bin 1 21 and the bottom of the mixing bin 2 22, and two spheres 261 are provided at the bottom of the annular plate 26, and the mounting seat 25 is provided with an annular groove 251 corresponding to the sphere 261, and the sphere 261 moves in the annular groove 251.

[0095] Therefore, in actual use, the annular groove 251 and the sphere 261 can achieve rotation and provide support at the same time.

[0096] Secondly, mixing chamber 1 21 and mixing chamber 2 22 are connected to driving source 3 through rotating shaft 1 271 and rotating shaft 2 272 respectively, and rotating shaft 1 271 and rotating shaft 2 272 are respectively provided with gear 1 273 and gear 2 274, and gear 3 275 is meshed with gear 1 273 and gear 2 274, and gear 3 275 is connected to driving source 3 and rotates under the drive of driving source 3, thereby driving gear 1 273 and gear 2 274 to rotate and driving mixing chamber 1 21 and mixing chamber 2 22 to rotate.

[0097] The driving source 3 is a motor, which is meshed with the gear 1 273 and the gear 2 274 through the gear 3 275 to achieve synchronous rotation. Bearings are arranged between the rotating shaft 1 271 and the rotating shaft 2 272 and the base 1 and the mounting seat 25 .

[0098] The mixing bin 1 21 and the mixing bin 2 22 are composed of a bin body and a top cover, and the bin body is grooved corresponding to the rotating shaft and is provided with an annular plate 26 and a discharge pipe 23, and the bin body and the top cover are snap-connected.

[0099] like Figure 6-Figure 8 As shown, the related structure of the guide plate 34 is as follows: first, one end of the guide plate 34 close to the forming groove 33 is matched with the inner wall of the forming groove 33 .

[0100] Meanwhile, the base 1 is provided with a long hole, and the guide plate 34 is connected to the driving source 1 through a connecting rod 1 342, and the connecting rod 1 342 passes through the long hole and is connected to the driving source 1, and the connecting rod 1 342 moves in the long hole. The driving source 1 is a cylinder, and in order to avoid interference, the guide plate 34 is tilted.

[0101] The guide plate 34 is provided with a limit block above the long hole, so as to play a role of limiting, and a convex strip and a groove are provided between the limit block and the base 1 to achieve guidance. At the same time, for the convenience of installation, the connecting rod 342 can be divided into two parts, upper and lower.

[0102] Moreover, the lower mold 3 is provided with a groove track 4 39 corresponding to the guide plate 34, and the groove track 4 39 is connected with the groove track 1 31, and the guide plate 34 moves in the groove track 4 39.

[0103] Secondly, the related structure of the limiting ring 35 is as follows: firstly, the top of the limiting ring 35 is consistent with the bottom surface of the inner wall of the forming groove 33.

[0104] At the same time, the lower mold 3 and the base 1 are respectively provided with an annular hole 1 38 and an annular hole 2 corresponding to the limiting ring 35, and the top of the limiting ring 35 passes through the annular hole 2 and the annular hole 1 38 and is located in the molding groove 33, and the bottom of the limiting ring 35 is connected to the driving source 2. The driving source 2 is a cylinder.

[0105] However, the guide plate 34 and the limiting ring 35 can also move synchronously. At this time, the guide plate 34 cannot be tilted, and a worm 1 343 and a worm 2 351 are respectively provided at the bottom of the guide plate 34 and the limiting ring 35. The motor is connected to a shaft, and one end of the shaft is connected to the motor and is sleeved with a turbine 1 36, and the other end of the shaft is a worm 3. Secondly, a turbine 2 371 is connected to one side of the worm 3, and a turbine 372 rotates coaxially with the turbine 2 371.

[0106] Therefore, in actual use, synchronization is achieved by having the worm gear 1 343 meshing with the turbine gear 3 372 , and the worm gear 2 351 meshing with the turbine gear 1 36 .

[0107] like Figure 1-Figure 9 As shown, the upper surface of the lower mold 3 is an inclined surface to facilitate the movement of the raw material.

[0108] At the same time, the forming groove 33 includes a hemispherical section and a cylindrical section, thereby preventing the raw material from escaping.

[0109] Furthermore, the lower mold 3 and the upper mold 41 are both detachable, so as to facilitate cleaning and replacement of different sizes to prepare composite precursors of different sizes. The specific detachable structure can be a detachable structure such as a plug-in or screw.

[0110] The above shows and describes the basic principle and main features of the present invention and the advantages of the present invention. At the same time, the present invention is not limited by the above embodiments, so without departing from the principle and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A preparation device for composite bentonite loaded with microorganisms, which is used for mixing and extrusion and comprises a base (1), wherein the base (1) comprises a mixing zone and an extrusion zone, and the height of the mixing zone is higher than that of the extrusion zone; The mixing zone comprises a mixing chamber 1 (21) and a mixing chamber 2 (22) which operate synchronously, wherein the mixing chamber 1 (21) is used to mix the raw materials of the core, and the mixing chamber 2 (22) is used to mix the raw materials of the shell. The extrusion zone comprises a lower mold (3) and a movable upper mold (41), and the lower mold (3) is provided with a groove track 1 (31), a groove track 2 (32) and a forming groove (33), and is provided with a movable guide plate (34) and a limit ring (35); The groove track 1 (31) is connected to the forming groove (33) and is connected to the mixing bin 1 (21) through the transport guide track 1 (51), and the groove track 2 (32) is connected to the forming groove (33) and is connected to the mixing bin 2 (22) through the transport guide track 2 (52), and the guide plate (34) is provided with a groove track 3 (341), the guide plate (34) is used to block the groove track 1 (31) from being connected to the forming groove (33), and the limit ring (35) is used to divide the forming groove (33) into two areas, namely a core area and a shell area; When the limiting ring (35) moves upward and divides the forming groove (33) into two areas, the guide plate (34) moves in a direction close to the forming groove (33) and connects the groove track (31) with the forming groove (33) through the groove track (341), thereby allowing the mixed core raw materials to move to the core area; The end of the guide plate (34) close to the forming groove (33) is matched with the inner wall of the forming groove (33); The top of the limiting ring (35) matches the bottom surface of the inner wall of the forming groove (33); The mixing chamber 1 (21) and the mixing chamber 2 (22) are connected to the driving source 3 through the rotating shaft 1 (271) and the rotating shaft 2 (272), respectively, and the rotating shaft 1 (271) and the rotating shaft 2 (272) are respectively provided with a gear 1 (273) and a gear 2 (274), and a gear 3 (275) is meshed with the gear 1 (273) and the gear 2 (274), and the gear 3 (275) is connected to the driving source 3 and rotates under the driving of the driving source 3, thereby driving the gear 1 (273) and the gear 2 (274) to rotate and driving the mixing chamber 1 (21) and the mixing chamber 2 (22) to rotate.

2. The preparation equipment of composite bentonite loaded microorganisms according to claim 1, characterized in that: The extrusion zone comprises a mounting frame (42) which can rotate and move up and down, and an upper mold (41) and a clamping member (43) for clamping the extruded composite precursor are arranged at the bottom of the mounting frame (42), and the composite precursor is moved to the next step through the clamping member (43).

3. The preparation equipment of composite bentonite loaded microorganisms according to claim 1, characterized in that: The mixing bin 1 (21) and the mixing bin 2 (22) both include a discharge pipe (23), and a movable baffle (24) is provided on the discharge pipe (23), and the baffle (24) is used to prevent the raw materials from coming out; A limiting portion (241) is provided at one end of the baffle plate (24) located in the discharge pipe (23), and the limiting portion (241) abuts against the inner wall of the discharge pipe (23) to prevent the baffle plate (24) from moving out of the discharge pipe (23).

4. The preparation device of composite bentonite loaded microorganisms according to any one of claims 1 to 3, characterized in that: The base (1) is provided with an elongated hole, and the guide plate (34) is connected to a driving source (1) via a connecting rod (342), and the connecting rod (342) passes through the elongated hole and is connected to the driving source (1), and the connecting rod (342) moves in the elongated hole; Or / and, the lower mold (3) is provided with a groove track four (39) corresponding to the guide plate (34), and the groove track four (39) is connected to the groove track one (31), and the guide plate (34) moves in the groove track four (39).

5. The preparation equipment of composite bentonite loaded microorganisms according to any one of claims 1 to 3, characterized in that: The lower mold (3) and the base (1) are respectively provided with an annular hole 1 (38) and an annular hole 2 corresponding to the limiting ring (35), and the top of the limiting ring (35) passes through the annular hole 2 and the annular hole 1 (38) and is located in the molding groove (33), and the bottom of the limiting ring (35) is connected to the driving source 2.

6. The preparation device of composite bentonite loaded microorganisms according to any one of claims 1 to 3, characterized in that: The mixing bin one (21) and the mixing bin two (22) are both arranged on the base (1) via a mounting seat (25), and an annular plate (26) is arranged at the bottom of the mixing bin one (21) and the mixing bin two (22), and two spheres (261) are arranged at the bottom of the annular plate (26), and an annular groove (251) is formed on the mounting seat (25) corresponding to the spheres (261), and the spheres (261) move in the annular groove (251).

7. The preparation equipment of composite bentonite loaded microorganisms according to claim 2, characterized in that: The base (1) is provided with a rotatable and up-and-down-movable mounting rod (44), and a mounting frame (42) is provided on the top of the mounting rod (44), and the base (1) is provided with a guide sleeve (17) corresponding to the mounting rod (44) so ​​as to limit the moving direction of the mounting rod (44) and prevent the mounting rod (44) from tilting; Or / and, a mounting rod (44) which can rotate and move up and down is provided on the base (1), and a driving source four is built in the base (1), a mounting frame (42) is provided on the top of the mounting rod (44), and a gear four (441) and a moving plate (442) are provided on the bottom of the mounting rod (44), and the moving plate (442) is connected to the driving source five so that it moves up and down under the driving of the driving source five and drives the mounting rod (44) to move up and down, and when it moves to a certain position, the gear four (441) is connected to the driving source four and rotates and moves under the driving of the driving source four and drives the mounting rod (44) to rotate.

8. The preparation equipment of composite bentonite loaded microorganisms according to any one of claims 1 to 3, characterized in that: The upper surface of the lower mold (3) is an inclined surface so as to facilitate the movement of the raw material; Or / and, the forming groove (33) comprises a hemispherical segment and a cylindrical segment; Or / and, the lower mold (3) and the upper mold (41) are both detachable, so as to facilitate cleaning and replacement of different sizes to prepare composite precursors of different sizes.

Images