76results about How to "Flexible spacing adjustment" patented technology

The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area, an ozone oxidation-microelectrolysis / Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area comprises a multi-dimensional electrolysis / microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis / Fenton area comprises a microelectrolysis / Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.

The invention discloses a steel pipe polishing device for a protection fence and relates to the technical field of protection fence processing. The steel pipe polishing device comprises a support frame. A sleeve ring sleeving out of a steel pipe is fixed on a guide frame. A polishing mechanism for polishing the steel pipe is set on the sleeve ring. A servo motor is fixed on the support frame. A translation mechanism for driving the sleeve ring to move transversely relative to the steel pipe is in drive connection with the servo motor. According to the device, through rotation of a rotation shaft, a limiting mechanism is driven to rotate and the limiting mechanism drives the steel pipe to rotate, so circumferential rotation displacement relative to the polishing mechanism is realized and the surface of the steel pipe is polished. The translation mechanism drives the sleeve ring and the sleeve ring drives the polishing mechanism to carry out transverse reciprocating translation, so different circumferential position regions of the steel pipe are fully polished. Through utilization of an adjustment mechanism, the space between two polishing curve boards can be flexibly adjusted, so sufficient polishing pressing force can be ensured, and the steel pipe polishing device is adaptive to surface polishing of the steel pipes with different outer diameters.

The invention relates to a novel type gripping mechanism with interval size being adjustable. The novel type gripping mechanism with interval size being adjustable comprises a supporting frame and further comprises a horizontal translocation assembly, an assembly lifting cylinder, an assembly installation plate, a first gripping power assembly, a first positioning assembly, a second gripping powerassembly, a second positioning assembly, a first clamping jaw set and a second clamping jaw set. A working end of the horizontal translocation assembly is connected with a fixed end of the assembly lifting cylinder. A working end of the assembly lifting cylinder is connected with the upper wall of the assembly installation plate. Both the first gripping power assembly and the second gripping power assembly are installed in the lower portion of the assembly installation plate and are arranged front and back. A working end of the first gripping power assembly is connected with the first clamping jaw set through the first positioning assembly. A working end of the second gripping power assembly is connected with the second clamping jaw set through the second positioning assembly. According to the novel type gripping mechanism with interval size being adjustable, the interval between the first clamping jaw set and the second clamping jaw set can be adjusted so that products of different sizes can be conveniently clamped; the application range is wide; the structure is compact; practicability is high; and the gripping mechanism has good market application value.

The invention discloses a road construction large-diameter cement pipe section carrying device and relates to the technical field of construction machines. The road construction large-diameter cementpipe section carrying device comprises a moving flat plate. A moving flat plate is vertically fixed to the moving flat plate. A longitudinal adjusting mechanism comprises a threaded pipe, and a servomotor III is fixed to the threaded pipe. An output shaft of the servo motor III is in drive connection with a clamping mechanism used for clamping a cement pipe section. By means of the road construction large-diameter cement pipe section carrying device, supporting plates in the clamping mechanism stretch outwards and support and fix the cement pipe section from the interior of the cement pipe section, the distance between the two supporting plates can be adjusted flexibly, and the supporting plates can be used for carrying cement pipe sections with different inner diameters; and meanwhile, arranged limiting frames can slide relative to the supporting plates so as to limit and lock the cement pipe section from the two ends of the cement pipe section, and it is ensured that the cement pipesection is stable enough in the carrying process and is not likely to disengage; and due to an arranged transverse adjusting mechanism and the arranged longitudinal adjusting mechanism, multi-dimensional position moving of the cement pipe section can be conducted, and the carrying flexibility of the cement pipe section is greatly improved.

The invention discloses an adjustable plastic drilling device. The adjustable plastic drilling device comprises a box body, a drilling device and clamping devices, wherein the top of the box body is fixedly connected with a first motor through a machine frame, a first gear is fixedly arranged at the front end of an output shaft of the first motor, the first gear is meshed with a rack fixedly arranged at the top of the drilling device, the middles of the side walls at the two ends of the box body are rotationally connected with a first rotating shaft and a second rotating shaft in a rotating mode, and a first roller is fixedly installed on the surface of the first rotating shaft. The invention relates to the technical field of machining equipment. According to the adjustable plastic drilling device, a second motor is used for driving a second belt wheel to rotate, a belt is used for driving the first belt wheel to rotate, a semicircular gear is indirectly driven to rotate, the semicircular gear and the second gear are meshed intermittently, the conveying belt is intermittently conveyed, and the moving distance of the conveying belt is equal to the distance between positioning blockswhen the second gear rotates by one circle, so that each clamping device can be accurately stopped below the drilling device, and the machining precision is guaranteed.

The invention discloses a high-flatness broadband comb spectrum generator based on phase-locked loop mechanism and a generation method thereof, which consists of an R divider, phase detector PD, loopfiltering LP, voltage controlled oscillator VCO, N divider, bandpass and filter. A reference signal input is divided by an R divider into phase detector inputs, the output of R frequency divider is comb spectrum interval frequency by program control, at the same time, the frequency of the loop fed back by the N-divider is also set to the comb spectrum interval frequency. When the phase-locked loopis locked stably, a part of the output of the N-divider is led out to obtain the comb spectrum signal, and then the band-pass filter is used to suppress the unnecessary signals outside the bandwidthto obtain the final output comb spectrum signal. Compared with the traditional comb spectrum generator, this technique has the characteristics of high flatness, fine and adjustable spacing, wide band,adjustable comb spectrum zero point and so on.

The invention provides a backlight module and a display device. The backlight module comprises a back panel, a first radiating plate, a light source, a light guide plate and a regulating device, wherein the first radiating plate is arranged on the back panel, and provided with a fixed part; the light source is arranged on the first radiating plate; the light guide plate is arranged at one side of the light source, and a first interval is arranged between the light guide plate and the light source; the regulating device is provided with a first regulating part and a second regulating part, the first regulating part is provided with a first toothed part, the second regulating part is provided with a second toothed part, and the first and second toothed parts are mutually contacted; the first regulating part and the fixed part are fixedly and mutually arranged; the second regulating plate is fixed on the back panel, so that the first and second regulating parts are in close fit in the direction perpendicular to the back panel; and the position of the first radiating plate is regulated through mutual movement of the first and second toothed parts in the direction parallel to the back panel, namely the first internal is regulated so as to be capable of flexibly regulating the space between the light source and the light guide plate.

The invention discloses a bicycle with an adjustable distance between a handle bar and a saddle. The bicycle comprises a front wheel, a rear wheel, a front fort, a rear fork, a handle frame, a frame, a saddle, a drive mechanism and an adjusting and positioning mechanism for adjusting the distance between the handle bar and the saddle. The adjusting and positioning mechanism mainly consists of a support sleeve, a rotary connecting piece and a length adjusting mechanism. The upper part of the support sleeve is sleeved at the lower part of the handlebar stem and is connected with the handlebar stem in a way of rotating relative to the handlebar stem circumferentially. The lower part of the support sleeve is hinged synchronously with a front vertical tube. The rotary connecting piece is a member which is bendable axially and can rotate relative to the handlebar stem circumferentially. The rotary connecting piece is located in the support sleeve. The upper end of the rotary connecting piece is fixedly connected with the handlebar stem, and the lower end of the handlebar stem is fixedly connected with the upper end extending from the front vertical tube. The front fork rotates synchronously and circumferentially with the handlebar stem through the rotary connecting piece. According to the bicycle, the distance between the handle bar and the saddle can be adjusted so as to improve the riding comfort.

The invention discloses a logistics turnover box and belongs to the field of logistics. The logistics turnover box comprises a bottom board, a left side board, a right side board, a front side board and a rear side board, wherein the left side board, the right side board, the front side board and the rear side board are mounted on the bottom board; the left side board and the right side board areboth provided with sliding grooves parallel to the front portion and the rear portion of the turnover box. The logistics turnover box further comprises a plurality of partition boards. The left sidewall and the right sidewall of each partition board are both provided with sliding blocks matched with the sliding grooves. A spacing adjustment mechanism is arranged on the partition boards. The spacing adjustment mechanism comprises a screw rod fixedly mounted between the front side board and the rear side board and screw nuts mounted on the partition boards. The screw nuts are matched with the lead screw and are rotatably connected with the partition boards. The logistics turnover box is simple in structure and reasonable in design. The spacing between the partition boards can be adjusted conveniently and quickly. Thus, the turnover box can be suitable for containing various sizes of articles. Meanwhile, the logistics turnover box further has the characteristic that there is no need to additionally arrange a locking mechanism.

The invention provides a restraining tray for battery cell testing, which is provided with a base for bearing a battery cell, and further comprises a plurality of fixed clamping plates and a restraining unit, the fixed clamping plates are arranged side by side and are fixedly arranged on the base, and the restraining unit is arranged on the base. A plurality of clamping plates in one-to-one correspondence with the fixed clamping plates are fixedly arranged on the restraining unit, the battery cells are arranged between the corresponding clamping plates and the fixed clamping plates, and when the clamping plates move along with the restraining unit and approach the fixed clamping plates, the battery cells can be synchronously clamped between the clamping plates and the fixed clamping plates. According to the restraining tray for the battery cell test, accumulated errors generated in the process that a plurality of battery cells are pushed and clamped can be avoided, and therefore good conditions are provided for accurate alignment of the probes and the electrodes.

The invention discloses a dual-power one-stage molding wall grooving machine which comprises two motor covers, wherein the two motor covers are parallel left and right and spaced, and a motor is arranged in each motor cover; the tails of the motor covers are connected through horizontal grips, a front cover is arranged at the front end of each motor cover, and a shaft seat is arranged on the front cover. The two ends of a cutter shaft are rotationally arranged on the left and right shaft seats respectively, and the upper ends of the left and right shaft seats are connected through vertical grips. A dead-corner-free waterproof structure is arranged on the front cover of each motor cover, and the upper half of each blade on the cutter shaft is positioned in the dead-corner-free waterproof structure. When the dual-power one-stage molding wall grooving machine grooves a non-planar wall, the dead-corner-free waterproof structures can be adjusted, so that the front end part of each blade is exposed out to groove the wall on the vertical direction. Groove depth adjustment mechanisms are fixedly arranged on the outer sides of the left and right shaft seats. The dual-power one-stage molding wall grooving machine can stably and powerfully output power to the two ends of the cutter shaft, so that the cutting strength of all blades on the cutter shaft keeps consistent. The adaptability to the grooving terrain is wide, the grooving depth can be flexibly adjusted, and the hand-holding pressure of the grooving machine is reduced.

The invention discloses a distance adjusting mechanism and a photogravure press thereof. The photogravure press of the distance adjusting mechanism comprises an outer shell. The outer shell is internally provided with an inner printing cavity and a rear processing cavity. The rear processing cavity is internally provided with a baking plate, fourth conveying rollers, a blowing box, a sucking box and fifth conveying rollers. The baking plate is internally provided with heating wires. The blowing box is used for blowing the two end faces of a printing stock. The sucking box is used for sucking air in the rear processing cavity. The two fourth conveying rollers and the two fifth conveying rollers form two pairs respectively, and each fourth conveying roller and each fifth conveying roller arearranged on an upper roller shaft or a lower roller shaft correspondingly. The air inlet end of the blowing box communicates with an exhausting joint of an antistatic device, an air inlet joint of the antistatic device communicates with a dust removing exhaust pipe of the dust removing device, a first air passing pipe and a second air passing pipe of the antistatic device communicates with an exhaust port of a booster pump, and the dust removing exhaust pipe further communicates with an air inlet of the booster pump. The dust removing air inlet pipe of the dust removing device communicates with an exhaust port of an air pump, and an air inlet of the air pump communicates with the interior of the sucking box.

The invention belongs to the technical field of agricultural machinery and provides a reaper for blanched garlic leaves. The reaper for the blanched garlic leaves comprises a frame, traveling wheels are mounted on a bottom plate of the frame, seedling poking plates are mounted at one end of the bottom plate through an adjusting mechanism, a seedling poking area is formed between each two adjacentseedling poking plates, a static cutter is fixedly mounted at the bottom at one end of the bottom plate and is close to the seedling poking plates, a movable cutter driven by a first driving device isslidably mounted above the static cutter and is close to the static cutter, a plurality of cutter teeth are formed at one end, close to the seedling poking plates, of each of the movable cutter and the static cutter, a conveying mechanism driven by a second driving device is arranged on the frame, a material inlet of the conveying mechanism corresponds to the seedling poking area, and a collecting basket is arranged at a discharging outlet of the conveying mechanism and is disposed on the frame. The reaper for the blanched garlic leaves is simple in structure, small in size and high in automation degree by cutting, conveying and collecting the blanched garlic leaves orderly, and substitutes for manual operation effectively, thereby being higher in reaping efficiency and quality.

The invention belongs to the technical field of filter membrane preparation, and particularly relates to a preparation method of a graphene oxide skeleton composite membrane. The preparation method comprises the following steps: S1, preparing a graphene oxide suspension solution by using a Hummber method; S2, synthesizing organic metal framework (MOF) nanoparticles with functional groups; S3, mixing the MOF nanoparticles into the graphene oxide suspension solution, carrying out ultrasonic dispersion, and carrying out a heating reaction so as to form a GO-MOF skeletal structure suspension; and S4 preparing the GO-MOF skeleton composite membrane by using a pressure filtration method. According to the preparation method, the particle size of the MOF nanoparticles can be controlled by controlling the reaction time and temperature of the MOF nanoparticles, so the skeleton structure of the graphene oxide film can be controlled and adjusted; in the preparation process of the graphene oxide membrane, the interlayer spacing of graphene is flexibly adjusted; the performance of the membrane is stable, and the method is simple; and the graphene oxide membrane prepared by using the method can be widely applied to membrane separation processes such as nanofiltration, pervaporation and gas separation.

The invention relates to the technical field of a planting frame, in particular to a three-dimensional hydroponic planting frame for agricultural ecology. Two transverse plates are fixed to the two ends of the lower sides of two sliding rails, a movable planting frame is arranged between the two sliding rails, the movable planting frame comprises a connecting plate arranged between the two sliding rails, two movable wheel shells are fixed to the two ends of the connecting plate. Through a height adjusting and positioning mechanism and a movable driving mechanism, a distance between the adjacent movable planting frames and the distance between culture tubes on the same movable planting frame can be adjusted, and the distance between the culture tubes and the distance between the adjacent movable planting frames can be flexibly adjusted according to the size of a planted plant, and thus the space utilization rate in a greenhouse can be improved; through an assembling connecting mechanism, the sliding rails are assembled, the length of the sliding rails can be adjusted according to actual requirements, the sliding rails are convenient to disassemble and transport, and the practicability is improved.

The invention provides a machining grinding device, and is suitable for the technical field of machining of steel rust removal grinding machines. The machining grinding device comprises a base, a grinding roller, a driving motor, a second gear shaft and a third gear shaft, wherein the grinding roller is rotationally connected to the base, one end of the grinding roller is coaxially and fixedly connected with a first gear shaft, the driving motor is coaxially and fixedly connected with the other end of the first gear shaft, the second gear shaft is slidably and rotatably connected to the base,the third gear shaft is connected to the base in a sliding and rotatable mode and is meshed with the first gear shaft and the second gear shaft, the shaft end of the third gear shaft is connected withthe shaft end of the second gear shaft through a connecting piece, by changing the position of the third gear shaft on the base, and adjusting the distance between the second gear shaft and the grinding roller, and grinding of steel pipes of different diameter specifications is achieved. According to the grinding device, the distance can be flexibly adjusted according to different diameter specifications of the steel pipes, the adjusting method is simple and convenient, applicability is high, the device principle is simple, and manufacturing cost is low.

The invention relates to a joint surface stiffness test bench and a using method thereof. The joint surface stiffness test bench comprises a base, a part II placed on the base, and a part I placed onthe part II; a laser displacement sensor is mounted on the part II, a reflector is mounted on the part I, and a side plate is separately connected to the opposite side walls of the base; at least oneelongated hole is arranged on each side plate along the length direction; and fastening bolts correspondingly passes through each of the elongated holes and is connected to positioning screw holes provided on the base. The distance between a pressure detecting mechanism and a part to be tested can be flexibly adjusted in a wide range; therefore, the joint surface stiffness test bench is not limited by the size of the parts during use, and has a wide application range.

The invention discloses a plastic film winding device which comprises a bottom plate. The upper end of the bottom plate is sequentially provided with a material guiding device used for feeding, a limiting device used for limiting feeding of a plastic film and a fixed frame in the horizontal direction; and the inner side of the fixed frame is provided with a slitting device used for slitting the plastic film and a material winding device used for winding the plastic film. Supporting legs are arranged at the bottom of the bottom plate. The plastic film winding device can achieve rapid slitting and winding of the plastic film, the plastic film is wound orderly and rapidly, the efficiency is high, meanwhile, the slitting segment number can be flexibly adjusted according to needs, and the device use applicability is high.

The invention discloses a tray, and relates to the technical field of article supporting devices, the tray comprises a tray body, and the tray body is provided with a tray supporting structure used for changing the force bearing area between the tray body and an external bearing surface; the tray supporting structure comprises a connecting part which is fixedly connected with the tray body, and comprises a supporting part, the supporting part is configured to be movably connected with the connecting part and is used for providing at least two supporting surfaces with different contact areas with an external bearing surface; a state switching mechanism is arranged between the connecting part and the supporting part and used for changing the contact area between the supporting part and an external bearing surface. Through the arrangement of the tray supporting structure, when the tray is used, the contact area between the tray and a bearing surface, such as the ground, can be flexibly adjusted according to use requirements, and then the pressure intensity between the tray and the bearing surface and the placement stability are adjusted, so that the tray can adapt to different places.

The invention discloses a sharing formwork system for batch prefabricated concrete members. The sharing formwork system comprises at least one concrete member sharing formwork frame, at least one cross beam I arranged between a lateral support upright I and a lateral support upright II of the concrete member sharing formwork frame, at least one cross beam II arranged between a lateral support upright III and a lateral support upright IV, a formwork I arranged between the lateral support upright I and the lateral support upright II and a formwork II arranged between the support upright III and the support upright IV which are laterally adjacent, wherein wooden cushion blocks are arranged on the cross beam I and the cross beam II respectively; reinforcement cages to be cast with concrete are arranged in cavities between the formwork I and the formwork II which are fixed with the wooden cushion blocks. The sharing formwork system for the batch prefabricated concrete members has the beneficial effects as follows: after concrete casting is finished and then certain strength is reached, the concrete member sharing formwork frame can be dismounted in advance while concrete beams are left in situ, and turnover of a formwork support system is accelerated greatly; meanwhile, the formwork use quantity is greatly reduced, and the sharing formwork system has significant economic benefit.

The invention discloses an electrolytic reaction device for preparing grapheme. The electrolytic reaction device for preparing the grapheme comprises an electrolytic cell, graphite plates, discharging mechanisms and graphite paper supporting mechanisms. Each discharging mechanism comprises a pressing roller and a graphite conducting roller connected with a power supply positive pole through a carbon brush. The pressing rollers and the graphite conducting rollers are symmetrically arranged above the electrolytic cell, each graphite paper supporting mechanism is fixed above the corresponding discharging mechanism, and the graphite plates serve as a negative pole and are arranged in the electrolytic cell. According to the purpose of the electrolytic reaction device for preparing the grapheme, the problem that an existing electrolytic device cannot be automated during large-scale preparation of the grapheme is solved.

The invention belongs to the technical field of aluminum template machining equipment, and discloses a groove milling machine. The groove milling machine comprises a first groove milling part, wherein the first groove milling part comprises a first group of groove milling power head assemblies and a first Z-axis moving rack; the first group of groove milling power head assemblies comprises a plurality of first groove milling power heads which are arranged at intervals; each first groove milling power head and the first Z-axis moving rack form a moving pair; a first rack is arranged on the first Z-axis moving rack; each first groove milling power head is provided with a first power head moving assembly; and each first power head moving assembly comprises a first gear which is engaged with the first rack and a first rotating power piece which is used for driving the first gear to rotate. Compared with the prior art, the groove milling machine has the advantages that the distance between milling heads can be flexibly adjusted, aluminum templates of various specifications and sizes can be covered, the groove milling machine is suitable for automatic production of groove milling of the aluminum templates of different lengths, and the requirement of template system change can be met.

The invention provides a discharge column cleaning mechanism, a dust collection device using the same, and an intaglio press. The intaglio press comprises a shell. An inner printing cavity and a post-treatment cavity are formed in the shell. A baking plate, two fourth conveying rollers, an air blowing box, an air suction box and two fifth conveying rollers are arranged in the post-treatment cavity. An electric heating wire is arranged in the baking plate. The air blowing box is used for blowing air to the two end faces of a printed object. The air suction box is used for sucking air from the post-treatment box. The two fourth conveying rollers are paired, and the two fifth conveying rollers are paired. Each fourth conveying roller or each fifth conveying roller is installed on an upper roller shaft or a lower roller shaft. The air inlet end of the air blowing box communicates with an exhaust connector of an electrostatic eliminating device. An air inlet connector of the electrostatic eliminating device communicates with a dust-collection exhaust pipe of the dust collection device. A first air pipe and a second air pipe of the electrostatic eliminating device communicate with an exhaust port of a booster pump. The dust-collection exhaust pipe further communicates with an air inlet of the booster pump. A dust-collection air inlet pipe of the dust collection device communicates with an exhaust port of an air pump, and an air inlet of the air pump communicates with the interior of the air suction box.

The invention discloses a parallel combined type supporting head. The parallel combined type supporting head comprises a plurality of supporting units and connecting pieces, wherein the connecting pieces are arranged between the adjacent supporting units, are connected with the supporting units and are used for adjusting the distance between the supporting units; each supporting unit comprises a jack, a rack A, a rack B, a supporting plate and a transmission piece, wherein the transmission piece comprises a gear A, a planetary gear set, an inner gear ring A and a gear B, the planetary gear setcomprises a sun gear and a plurality of planetary gears, the sun gear is meshed with the planetary gears, the sun gear is connected with the gear A, the planetary gears are meshed with the inner gearring A and are rotationally connected with the inner gear ring A, and the end surface of the gear B is connected with the inner gear ring A; a piston rod A of the jack is connected with the rack A, the rack A is meshed with the gear A, and the rack B is meshed with the gear B and is connected with the supporting plate at the same time; and through the transmission of the planetary gear set, the torque of the jack is amplified, the connecting pieces are arranged, so that the plurality of supporting units can be connected, and the supporting strength is improved.

The invention discloses an electrolytic reaction device for preparing grapheme. The electrolytic reaction device for preparing the grapheme comprises an electrolytic cell, graphite plates, discharging mechanisms and graphite paper supporting mechanisms. Each discharging mechanism comprises a pressing roller and a graphite conducting roller connected with a power supply positive pole through a carbon brush. The pressing rollers and the graphite conducting rollers are symmetrically arranged above the electrolytic cell, each graphite paper supporting mechanism is fixed above the corresponding discharging mechanism, and the graphite plates serve as a negative pole and are arranged in the electrolytic cell. According to the purpose of the electrolytic reaction device for preparing the grapheme, the problem that an existing electrolytic device cannot be automated during large-scale preparation of the grapheme is solved.

The invention relates to the technical field of feeding equipment, in particular to a calcium carbonate pulverizing and feeding mechanism which comprises a drying box and a conveying mechanism arranged at the lower end of the drying box. The drying box is composed of a box body and a discharge port in the lower end of the box body. A discharge auxiliary mechanism is arranged in the discharge port.The discharge auxiliary mechanism is composed of two parallel pulverizing rollers arranged in the discharge port. The two ends of each pulverizing roller are slidingly connected with guide slide grooves through sliding brackets correspondingly, wherein the guide slide grooves are horizontally formed in the side wall of the discharge port. A synchronous adjusting mechanism for adjusting the distance between the two pulverizing rollers is arranged on the outer wall of the discharge port. A driving mechanism for driving the two pulverizing rollers to move in opposite directions is arranged on the same side of the discharge port. The calcium carbonate pulverizing and feeding mechanism is simple in structure, can efficiently pulverize and discharge a dried calcium carbonate material, improvesdischarge efficiency and smoothness, can change the distance of the two pulverizing rollers flexibly according to actual demands, and improves use flexibility and practicability.

The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area, an ozone oxidation-microelectrolysis / Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area comprises a multi-dimensional electrolysis / microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis / Fenton area comprises a microelectrolysis / Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.