72results about How to "Reasonable structural optimization" patented technology

The invention provides bacillus amyloliquefaciens SZ-60 which is characterized in that the collection number is CGMCC No.8277. The bacterial colony formed by the strain on a beef-extract peptone (NB) medium by virtue of single-cell reproduction is irregular with oyster white color, slight upheaval at the center and wet and semitransparent surface; the microscopy is of a rod shape, and the size is (0.3-0.4)*(3.2-3.3)microns; with flagella, G- and spores, the strain can grow on the beef-extract peptone (NB) medium containing 2-5% of NaCl; the formula of the beef-extract peptone (NB) medium contains 3.0g of beef extract, 10.0g of peptone, 5.0g of NaCl, 17g of agar and 1,000ml of water, and the pH is 6.8-7.2. The bacillus amyloliquefaciens realizes a remarkable antagonistic action on the main pathogenic bacteria causing ginseng root rot, epidemic diseases, sclerotinia sclerotiorum, cylindrocarpon destructans, black spot and damping off. The invention also provides an application of the bacillus amyloliquefaciens SZ-60 in preventing plant fungal diseases, or application in preparing a microbial preparation for preventing plant fungal diseases.

The invention provides bacillus methylotrophicus SZ-3 and SZ-81, with collection numbers of CGMCC No.8275 and CGMCC No.8276 respectively. The bacillus methylotrophicus SZ-3 has obvious antagonistic effects on pathogenic bacteria causing root rot, black spot and sclerotinia sclerotiorum of ginseng. The bacillus methylotrophicus SZ-81 has obvious antagonistic effects on pathogenic bacteria causing epidemic diseases, root rust rot and black spot of panax ginseng. The invention also provides an application of the bacillus methylotrophicus SZ-3 and SZ-81 to control of fungal diseases of plants or an application to preparation of microbial preparations for controlling fungal diseases of plants.

The invention discloses an alga control method for a freshwater environment based on cultivation of barracudas and mullets, relating to a water treatment method. Aiming at solving the problem that algae can not be stably and thoroughly controlled in a eutrophic fresh water body, the method comprises the following steps: at least introducing one species of estuarine / marine fishes, such as barracudas and mullets which can only be propagated in sea water, and carrying out desalination processing before cultivation to enable the barracudas and the mullets to be adapted to a freshwater living environment, wherein the mesh size in the large water body ensures whether the cultivated fishes can escape; dividing or mixing according to different ages, carrying out culture in enclosure in girds by meshes, and simultaneously cultivating and propagating silver carps, bighead carps, other local fishes and local shellfish; and propagating local common aquatic plants. Thus, the fishes can be fed on the algae in a filter-feeding mode and simultaneously swallow detritus substances, thereby achieving the purpose of thoroughly purifying the water environment. By harvesting the cultivated and propagated aquatic organisms to remove nitrogen / phosphorus nutrients in water and humus in bed material from the water body, the method disclosed by the invention greatly improves the water quality of the cultivation water body.

The invention relates to the technical field of biology, and particularly provides a Bacillus amyloliquefaciens strain named Bacillus amyloliquefaciens GKT04 (CCTCC NO: M2016784), a screening method of the Bacillus amyloliquefaciens GKT04, application of the Bacillus amyloliquefaciens GKT04 in inhibiting Banana vascular wilt, and a Bacillus amyloliquefaciens GKT04 microbial inoculant. The microbial inoculant has favorable preventing and treating effects on Banana vascular wilt, has long-time preventing actions, and is environment-friendly. Compared with other soil biocontrol bacteria, the strain can be stably colonized in the banana plant, is slightly influenced by the external environment, and can directly interact with pathogenic bacteria, thereby providing comprehensive and effective protection for plants. The experimental investigation detects that the strain can obviously promote growth of the banana plants.

The invention discloses a method for optimizing and designing an automobile hub. The method comprises the steps of designing the style for an automobile hub body, carrying out mesh generation on a hub geometric model, establishing a finite element model, processing a load and boundary conditions of the hub, analyzing the automobile hub structural performance and optimizing and designing the hub structure. According to the method, the statics, dynamics analog simulation analysis and fatigue life prediction are carried out on the hub based on the finite element analysis, the hub structure is reasonably arranged, and the potential problem is found out as soon as possible and is modified pertinently. The using quantity of aluminum alloy materials is reduced on the premise that enough strength is guaranteed, the materials at the positions with the excessive strength are fully utilized, the product structure is more optimal and reasonable, the weight is reduced, the product quality is improved, the research, development and design period is shortened, production cost is reduced, and the enterprise market competitiveness is enhanced.

The invention discloses a composite layering type wind turbine blade and a manufacturing method thereof. A bamboo laminated timber layering with high specific stiffness is adopted for a girder at a blade root section of the blade; a zero-degree single direction layering with high specific strength is adopted for a girder from a blade middle to a blade tip; a lap joint reinforcing section is arranged between the bamboo laminated timber at the blade root section and the zero-degree single direction layering from the blade middle to the blade tip; the layering design of the lap joint reinforcingsection not only ensures the continuity of the stiffness of the blade and meets the integral strength requirement of the blade, which is favorable for the transmission of loading, but also satisfies the split-level requirement of the technology design; and moreover, the oblique plane of the upper surface of the bamboo laminated timber at the lap joint reinforcing section is subjected to corona treatment, the surface roughness of the bamboo laminated timber is increased, and the interface bonding force between glass fiber cloth and bamboo laminated timber is improved. According to the invention, the layering type of the blade is changed, thus the layering design of the blade is corresponding with the force property of the blade, and the strength of the blade root is improved as well as thestrength requirement of the blade from the blade middle to the blade tip is satisfied; and the bamboo laminated timber layering is adopted for the girder at the blade root of the blade, which is corresponding with the requirement of environment protection.

A light and convenient resistance meeting preventive pressured cable lowering conveyor comprises a blowout control sealing mechanism, a pressured cable lowering conveying mechanism and a cable resistance meeting alarming mechanism which are sequentially arranged from top to bottom and are connected mutually in a threaded manner. The blowout control sealing mechanism realizes double-stage hydraulic sealing, is reliable in sealing and is specially provided with an overflow opening, overflowing liquid can be collected to a storage barrel, and a wellhead is pollution-free; the pressured cable lowering conveying mechanism drives a gear to realize transmission by the aid of a motor, a squeezing wheel squeezes, conveying operation is realized, work is reliable, and a tester can normally make a trip in a well assuredly; and the cable resistance meeting alarming mechanism organically combines a cable tension structure with a signal transmitting structure, can alarm in time when the tester meets resistance or is jammed, and prevents severe accidents that a cable is twisted and broken, and the tester drops in the well.

The invention discloses a vibrating straw walker separation test stand with adjustable parameters. The test stand comprises a rack, a vibrating screen installed on the rack in an inclined mode through an oscillating bar mechanism, and a drive device used for driving the vibrating screen to swing in a reciprocating mode. The drive device comprises a crank, a rotating shaft, a connecting rod with the adjustable length, and a rotating drive assembly. The crank is connected with the rotating shaft. The crank is provided with a first connecting mechanism with the installing distance to the rotating center of the crank being adjustable. One end of the connecting rod is hinged to the vibrating screen, and the other end of the connecting rod is hinged to the first connecting mechanism. A feeding device used for conveying materials to the vibrating screen is arranged above the front of the vibrating screen. A receiving hopper is arranged under the vibrating screen. An impurity discharging hopper is arranged below the rear of the vibrating screen. According to the test stand, all the work parameters can be adjusted conveniently and fast without replacing parts, the basis is provided for studying factors influencing the screening efficiency and seeking measures for improving the work efficiency of vibrating straw walker separation, and a vibrating straw walker separation system with the optimized reasonable structure can be designed out conveniently.

The invention relates to a method and device for cleaning filler accumulated on an intercepting net of a water outlet of an aerobic tank and belongs to the technical field of sewage treatment. The device is characterized in that an output end of a hoisting mechanism (1) downward penetrates through a bracket seat (2) to be connected with a hoisting rod (3) which is vertically arranged; the hoistingrod (3) slides up and down in a shaft sleeve of a shaft sleeve seat I (4) and a shaft sleeve seat II (18); a scraping plate frame (5) is arranged on the hoisting rod (3) between the shaft sleeve seatI (4) and the shaft sleeve seat II (18); the scraping plate frame (5) is provided with a scraping plate (6); the scraping plate (6) is matched with an intercepting net surface of an intercepting netdevice (7). According to the method and the device, provided by the invention, the electric hoisting mechanism rotates and moves frontward and backward and a scraping plate assembly moves up and down,so that the filler accumulated on the intercepting net of the water outlet of the aerobic tank can be effectively scraped off; the device is simple and reasonable in structure, good in utilization effect, low in cost, simple in processing and manufacturing and stable to operate.

The invention relates to a corn crushing device for agricultural production. The corn crushing device sequentially comprises a material crushing unit, a drying unit and a material returning unit according to the sequence of the technological process; the material crushing unit comprises a material crushing box and a rotating shaft, and further comprises an impurity removing mechanism, an upper material crushing mechanism and a lower material crushing mechanism which are arranged in the material crushing box; a sending mechanism is used for sending dried materials into the material returning unit; and the material returning unit comprises a material returning box, a material returning screening net and a material returning power mechanism. By adopting the corn crushing device for agricultural production, corn kernels can be fully crushed, corn kernels obtained by crushing has no residue impurity, the humidity is small, the product quality is high, and the preservation time is long. In addition, the corn crushing device is high in automation degree and has the low operational requirements for workers, the processing working procedure is reasonably optimized while the effect of reducing the labor intensity of the workers is achieved, the processing cycle is shortened, and the production cost is reduced.

A wear-proof tester of front and back shafts on bicycle is prepared as setting external surface of two ends on erection cartridge in internal circle of two support bearings, fixing base of said bearing on support platform, fixing chain wheel on erection cartridge, setting the first and second fixing jacket and regulation washer actively in erection cartridge, arranging locking unit at another end of erection cartridge to press regulation washer and setting load unit on support platform under base of bearing.

The invention discloses a special molding machine for automobile seat angle adjustment assembly, comprising a frame. The frame is provided with a primary forming device, an automatic assembling device and an linkage pipe station transfer device. An automatic feeding device is arranged at the upstream of the primary forming device. A discharge station is arranged at the downstream of the automatic assembling device, the linkage pipe is provided with a left inner convex ring and a right inner convex ring through the primary molding device. A left connecting plate and a right connecting plate are assembled on the automatic assembling device in a sleeving mode and a left outer convex ring and a right outer convex ring are formed on the automatic assembling device. The special molding machine does not need the welding operation, so that the left connecting plate and the right connecting plate are fixed in the left and right ends of the linkage pipe in a way similar to the riveting way, the firmness is higher, the degree of automation is high, and heat deformation of the linkage pipe is avoided. The invention also discloses a method for forming the regulating component, the forming method has the same effect as the molding machine.

The present invention provides Bacillus vallismortis SZ-4, which has the preservation number of CGMCC No.8273. According to the present invention, the strain grows on a beef extract-peptone (NB) culture medium in a single cell reproduction growth manner to form bacterial colonies, and the bacterial colonies have characteristics of round shape, milk white color, slightly elevated center, and moist and transparent surface; microscopic examination results show that the Bacillus vallismortis SZ-4 has a rod shape, has flagella, has a size of 0.7-0.82*1.6-2.2 mum, presents the positive Gram staining effect, has spores, and can grow on a beef extract-peptone (NB) culture medium containing 2-5% of NaCl, wherein the beef extract-peptone (NB) culture medium comprises: 3.0 g of a beef extract, 10.0 g of peptone, 5.0 g of NaCl, 17 g of agar and 1000 ml of water, and the pH value is 6.8-7.2; and the Bacillus vallismortis SZ-4 provides significant antagonism effects for pathogenic bacteria causing ginseng root rot, blight, sclerotinia sclerotiorum and botrytis cinerea. The present invention further provides an application of the Bacillus vallismortis SZ-4 in prevention and control of plant fungal diseases or preparation of microorganism preparations for prevention and control of plant fungal diseases.

The invention discloses a deck brush provided with a replaceable brush head. A mounting groove is formed in one end of a brush holder, a mounting rod and a mounting sleeve are fixedly arranged on thebrush head, the mounting rod is mounted on the brush holder in a threaded fit manner, an annular interval for accommodating a mounting section of the brush holder is formed between the mounting sleeveand the mounting rod, the brush holder is sleeved with a locking sleeve, and the locking sleeve is matched with the mounting sleeve through limit bulges for limitation. According to the design-optimized deck brush provided with the replaceable brush head, the structure is reasonably optimized, the brush head is mounted on the brush handle through threads, the mounting sleeve protects the connecting position and prevents dust impurities from entering the mounting groove, the service life can be prolonged, meanwhile, the mounting sleeve is sleeved with the locking sleeve to be locked and prevented from rotating, dismounting of the brush holder is facilitated, and the mounting reliability is greatly improved.

The invention relates to a salvage ship for floating objects in a landscape water area. The salvage ship for the floating objects in the landscape water area effectively solves the problems that existing water area floating object garbage cleaning equipment is complex in structure, large in size and small in cleaning area and cannot meet the requirement for water area garbage cleaning at the present stage. According to the technical scheme, a first filter screen is pulled out through rotating fit of two U-shaped rods, in the process, the rotating tracks of the U-shaped rods form a quasi-circle structure on a water surface, the area of a circle is the largest, and therefore a collecting device of the same size can provide the most favorable collecting state. According to the salvage ship for the floating objects in the landscape water area, the two U-shaped rods are in the motion state of a similar circle, the pulled-out first filter screen finally forms a similar rectangular frame structure, at the moment, garbage in the circle is gathered into a rectangular frame, and then collection of a collecting frame is matched, so that the salvage ship for the floating objects in the landscape water area can complete a large collecting area with a small size, and the collecting efficiency is improved.

A method for controlling algae in a freshwater pond by cultivating striped mullets relates to a method for treating water. Aiming at the problem of frequent blooming of blue green algae in a eutrophic pond aquiculture water body, the striped mullets which belong to river mouth marine fishes and can only be reproduced in sea water are introduced to filter-feed on the algae and swallow detritus substances, so that the aim of continuously and thoroughly purifying a freshwater pond aquiculture environment is fulfilled. The method is characterized by comprising the following steps of: performing gradual desalting treatment on the striped mullets before cultivation to make the striped mullets adapt to the living environment of freshwater, wherein the age of each striped mullet is less than 24 months; transferring the striped mullets into a pond required to be purified by a keeping-alive transportation method; cultivating the striped mullets in the eutrophic freshwater pond; and catching thelarge striped mullets and keeping the small striped mullets year by year according to the density of the striped mullets in a water environment. By the method for controlling the algae in the freshwater pond by cultivating the striped mullets, the content of the algae in the eutrophic freshwater pond aquiculture water body is effectively reduced, nitrogen and phosphorus nutritive salts in the water and humus in a bottom material are brought out of the water body by harvesting reproduced striped mullets, the quality of the water body is greatly improved, and algae blooming is controlled.

The invention relates to the field of fabricated buildings, and discloses an assembling and pouring integrated shear wall structure building system. The assembling and pouring integrated shear wall structure building system comprises a floor slab, a shear wall skeleton structure and wall templates arranged on two sides of the shear wall skeleton structure; the shear wall skeleton structure comprises a plurality of unit plane skeletons and unit three-dimensional skeletons; each unit plane skeletons comprises an upper horizontal member, a lower horizontal member and at least two vertical membersfixedly connected to the horizontal members in a perpendicular mode; and each unit three-dimensional skeleton is formed by enclosing the four unit plane skeletons. The standardized construction and three-dimensional installation are adopted, and the unit three-dimensional skeletons formed by the unit plane skeletons are constructed in an arrangement and combination mode. The installation efficiency is high. The steel skeleton combination forms an own stable structure without supporting supports and scaffoldings, manpower and material resources are greatly saved, a construction plane and construction space are provided for high-altitude operation in other processes, the processes cross one another and do not affect one another, the construction is safe and reliable, the installation efficiency is high, and the construction speed is high.

A pneumatic manipulator for picking up cotton, fruit and vegetable is composed of a wrist with air sucking opening, horn-shaped palm, finger with joint, and human meat simulating material. Its advantages are high picking up quality and durability, and saving energy. It is used in conjuction with sucking gun.

The invention aims at providing a speed reducer special for an efficient granulator. The speed reducer comprises a speed reducer box body. A connecting shaft, a second-level intermediate shaft, a third-level intermediate shaft, a third-level gear shaft and a hollow shaft are sequentially arranged in the speed reducer box body in parallel. An input small gear is installed on the connecting shaft. An intermediate small gear and an input large gear engaged with the input small gear are installed on the second-level intermediate shaft. An intermediate large gear engaged with the intermediate small gear is installed on the third-level intermediate shaft. A third-level large gear engaged with the intermediate large gear is installed on the third-level gear shaft. An output large gear engaged with the third-level gear shaft is installed on the hollow shaft. The speed reducer box body comprises a bottom cover and a top cover covering the bottom cover. The two ends of the connecting shaft, the two ends of the second-level intermediate shaft and the two ends of the third-level intermediate shaft are supported on the bottom cover of the speed reducer through deep groove ball bearings. The two ends of the third-level gear shaft and the two ends of the hollow shaft are supported on the bottom cover through tapered roller bearings.

The invention discloses a deep frost prevention system under the condition that an air-cooling module machine water circulation unit is broken down, and belongs to the technical field of module unit frost prevention. The deep frost prevention system comprises a fan, an evaporator, a four-way valve, a compressor, a water heat exchanger, a water tank and a controller; a water pump current transformer is arranged in the controller; flow sensors are arranged at the water inflow end and the water outflow end of the water heat exchanger; flow regulating valves are arranged on a water outflow pipe; aliquid level sensor is arranged in the water tank; an environment temperature sensor is arranged on the surface of the evaporator; a water inflow temperature sensor is arranged on one end side, wherea water inflow pipe is connected, of the water inflow pipe; an economizer is arranged on a connecting passage between the water heat exchanger and the evaporator; a exhaust temperature sensor and a high-voltage switch are arranged on an exhaust pipe of the compressor; and a water heat exchanger temperature sensor is arranged on a connecting passage between the water heat exchanger and the evaporator. The system is reasonable and optimizing in structure, and is convenient in application, the problem that a unit can not prevent frost when a water circulation passage is broken down is solved, and the system adapts to various forms of water heat exchangers on a module unit.

The invention discloses a method for dynamically optimizing the structure of a valve plate of an aviation plunger pump based on an instantaneous flow model. The method is established on the basis of the instantaneous flow model of the aviation plunger pump, and comprises the following steps of: selecting the radius r2 and the shift angle theta of a shock relief vent as the design variables for the dynamic structure optimization of the valve plate of the aviation plunger pump; randomly generating two groups of initial parameter vectors and substituting the initial parameter vectors into the instantaneous flow model of the aviation plunger pump to obtain instantaneous flow values of the aviation plunger pump under the two groups of parameter vectors; selecting the instantaneous flow pulse amplitude of the aviation plunger pump as a target function, comparing two target function values F(XL) and F(XH) and modifying structure parameters in real time through rotation transformation and contraction transformation to finally obtain the optimized structure parameters under the least instantaneous flow pulse amplitude. The invention provides more accurate instantaneous flow model of the aviation plunger pump for the dynamic structure optimization of the valve plate of the aviation plunger pump, evaluates the target function in real time, is a dynamic optimizing process and has very high efficiency and overall optimizing capability.

The invention discloses laser equipment for automatically processing shoe and boot components. The laser equipment comprises an equipment body, a conveying device, an adsorption device and a laser operation device, wherein the laser operation device comprises two laser scanning mechanisms forming corresponding first scanning area and second scanning area with a working area; the laser scanning mechanisms control two different directions separately; and the working path of laser is controlled during a process of processing shoe and boot fabrics in the first scanning area and the second scanning area, of the laser scanning mechanisms. The laser equipment disclosed by the invention is capable of meeting the production needs of various technique styles of shoes and boots, and greatly increasing the production efficiency; the whole processing and production process has no need of the co-operation of workers, and is high in automation degree, time-saving and labour-saving, and capable of lowering the labour cost and the production cost; and the technical treatment is high in the control degree and accuracy, and capable of avoiding errors, lowering the rejection rate and improving the quality requirements of the products.

The invention discloses an electric connector improved structure. The electric connector improved structure comprises a body; at least one longitudinal open slot is formed in the body; a lower terminal seat, an upper terminal seat and an elastic component, which are corresponding to each open slot, are arranged; the lower terminal seat comprises a terminal surface which extends transversely; a screw hole is longitudinally formed in the terminal surface; the upper terminal seat is provided with a screwing component corresponding to the screw hole; the lower terminal seat and the upper terminal seat are both arranged in the corresponding open slot longitudinally; the upper terminal seat can move longitudinally relative to the lower terminal seat, so that the screwing component can be screwed into and out from the screw hole; the elastic component is arranged in the open slot and is arranged between the body and the upper terminal seat in an abutting manner; when the screwing component is screwed out from the screw hole, the elastic component can eject the upper terminal seat out from the open slot and is positioned at a set height; and when the screwing component is screwed into the corresponding screw hole, the elastic component can be accommodated between the upper terminal seat and the body. With the electric connector improved structure of the invention adopted, use convenience in the connection of the electric connector improved structure and terminals can be improved, and work time can be effectively decreased, and production efficiency can be improved.

The invention provides a tool changing device for jujube tree grafting. The device comprises a cutter set, a cutter head, a cam mechanism and a power assembly, the cutter set comprises a scraper, a first breaking knife, a second breaking knife and a cut-off knife, the cutter head is of a ring structure, the cam mechanism is arranged in the center of the cutter head, and the cam mechanism and the cutter head are relatively independent. Four guide rail grooves are evenly formed in the cutter head, the scraper, the first breaking cutter, the second breaking cutter and the cut-off cutter are slidably installed in the guide rail grooves respectively, limiting pieces are arranged at the tails of all cutters in the cutter set, the cutter head is connected with the power assembly, and a steering engine drives the power assembly to move so as to drive the cutter head to rotate. When the cutter head rotates, the stationary cam mechanism ejects the cutters out, and the four cutters are cyclically reciprocated, so that the cutter replacement operation is convenient. The device is scientific and reasonable in structural design, safe and smooth in tool changing, diversified and complete in function, small in size, low in weight, convenient to carry and capable of effectively improving the working efficiency of jujube tree grafting.

The invention discloses a double-screw pelletizing machine used for polyphenylene sulphide and a primary pelletizing process. A vertical section of an inverted L-shaped feeding tube of the pelletizing machine is internally provided with a forced feeding screw; the upper end of the forced feeding screw is connected with a driving motor; an exhaust port is arranged at a nose side of a feeding hole of a cylinder; the exhaust port is provided with a rigid exhaust pipe; the rigid exhaust pipe is communicated with an exhaust fan by virtue of a hose; a space between the exhaust port and the feeding hole is 2-10cm. The primary pelletizing process comprises the following steps of: A, smashing screened polyphenylene sulphide fiber or lump material, adding the smashed polyphenylene sulphide fiber or lump material into the hopper of the double-screw pelletizing machine; B, heating and fusing by virtue of the cylinder of the double-screw pelletizing machine, then spraying into thread lines by virtue of the nose; and C, predrying cooled thread lines, carrying out grain-sized dicing and drying, and finally screening and then bagging and packaging. By adopting the double-screw pelletizing machine used for polyphenylene sulphide and the primary pelletizing process, a pelletizing production period is shortened, polyphenylene sulphide pelletizing efficiency and product quality are improved, raw material loss is reduced, and production cost is reduced.

The invention provides a lens structure group for researching actions of a physical experimental lens on light. The lens structure group comprises a left lens frame, a lamp holder, a right lens frame,a first venting pipe and a corrugated section; an imaging base, a middle lens frame and the lamp holder are matched to the top surface of a base plate in a sliding mode in the way that left and rightvertical pillars run through two sliding pipes, wherein the left lens frame is in interference fit to the left end face of the middle lens frame and the right lens frame is in interference fit to theright end face of the middle lens frame in a mode of making connecting lifting lugs get matched with rubber connecting sleeves; the fire point of a light source is slowly blown, so that the fire point gets deflected, and functionality is enhanced; on the basis of the function, the light source is changed, so that light source images in various states are presented on an imaging plate in a teaching experimental process, and practicability is enhanced; and in addition, a detachable object clamping frame is also arranged between a light source piece and a lens, so that simultaneous projection ofobjects and the light source is achieved, viewing effect is enhanced, and the practicability is further improved.

Disclosed is a raw material pre-treatment process system suitable for a kiln phosphoric acid process, comprising a carbonaceous reductant, a phosphate ore and a silica pre-treatment system which are independent from one another, outlets of the carbonaceous reductant, phosphate ore pre-treatment system and silica pre-treatment system are all connected to an inner pellet material mixing device via a first delivery device, and outlets of the carbonaceous reductant and the silica pre-treatment system are both additionally connected to a shell material mixing device via a second delivery device. Also disclosed is a raw material pre-treatment process suitable for a kiln phosphoric acid process, i.e. pre-treating carbonaceous reductant, phosphate ore and silica respectively, feeding the carbonaceous reductant powder, phosphate ore powder and silica powder into the inner ball material mixing device for pelletizing, and feeding the carbonaceous reductant and silica into the shell material mixing device for mixing.