104results about How to "Effective contact" patented technology

The invention relates to the technical field of fluidized beds, in particular to a fluidization coating device with pulse, stirring and double-particle triple synergy, which comprises a spray fluidized bed reactor, a fluidized bed reactor, a stirring device and a double-particle fluidized bed reactor, the gas distributor is positioned above the carrier gas inlet and is used for uniformly distributing carrier gas entering from the carrier gas inlet on the whole bed layer to form fluidized gas; the gas-liquid two-phase flow nozzle is connected with the gas supply unit and the coating liquid conveying tank and is used for atomizing the coating liquid into micron-sized small liquid drops and then spraying the micron-sized small liquid drops into the spray fluidized bed reactor; the mechanical shearing unit continuously generates local mechanical crushing on the aggregate; the pulse air inlet device is connected with the air supply unit and is used for applying periodic pulse airflow to the fluidized bed layer and breaking particle aggregation and channeling formed during initial fluidization; and the flow aiding particles and the fine powder particles to be coated jointly form a double-particle fluidization system. The problems of difficult fluidization starting, non-uniform fluidization and the like of ultrafine powder particles are solved through triple synergy of pulse, stirring and double particles.

The utility model relates to humidity sensor technical field discloses a humidity sensor with high sensitivity, including insulating base, the insulating base is pasted with the lower humidity sensitive membrane for sucking the water resource of external environment, and the side that lower humidity sensitive membrane is away from insulating base is equipped with double -end electrode, simultaneously the side that double -end electrode is away from lower humidity sensitive membrane pastes with the upper humidity sensitive membrane for sucking the water resource of external environment. In the utility model, through setting up streamline groove on lower humidity sensitive membrane and upper humidity sensitive membrane, can increase the surface area on lower humidity sensitive membrane and upper humidity sensitive membrane, secondly increase more water molecule contact point, thereby improve the hygroscopic efficiency and humidity sensor's sensitivity, streamline groove can help guide air flow simultaneously, make the water vapor in the air more effectively contact different parts of the humidity sensing film, which helps to improve the overall hygroscopic humidity sensing speed and uniformity, ensure the accuracy of humidity sensor monitoring.

The invention provides an electrochemical method, an electrode and a system for synthesizing hydrogen peroxide without aeration, and relates to the technical field of electrochemical preparation of hydrogen peroxide. The multistage hole penetrating type cathode with a specific multistage hole channel structure is adopted, the oxygen-containing electrolyte penetrates through the multistage hole penetrating type cathode for electrochemical reaction under the non-aeration condition, dissolved oxygen in fluid is forced to make efficient contact with catalytic active sites through the multistage hole channel structure, the mass transfer process is greatly enhanced, and the catalytic activity of the catalyst is improved. And the diffusion limitation of the traditional flow-through electrode is overcome. And meanwhile, the structure required for synthesizing hydrogen peroxide is simplified by an aeration-free operation mode, and the energy consumption and the cost are reduced. Finally, through the synergistic effect of the technical characteristics, the high-yield and high-flux synchronous output of hydrogen peroxide can be realized under the condition that an expensive catalyst and external gas aeration are not needed.

This utility model relates to a wool spinning winding machine, including a frame and a placement structure. The placement structure is installed on the upper surface of the frame. A cleaning structure for cleaning the wool surface is also installed on the inner side of the frame. A stepper motor is installed on the upper end of the mounting structure. Cleaning tubes are arranged in a ring array on the lower end of the mounting structure. Fiber brushes are provided on the inner side of the cleaning tubes. Pulleys are provided on the surface of the cleaning tubes. Two sets of pulleys are connected by a transmission belt. An upper circular plate is installed on the upper end of the mounting structure. A fan is also provided on the upper end of the upper circular plate. Air ducts are arranged in a ring array on the upper end of the mounting structure, and the air ducts communicate with the interior of the upper circular plate. Upper connecting pipes are arranged in a ring array on the mounting structure, and the upper connecting pipes communicate with the cleaning tubes. Furthermore, one end of each air duct is connected to the surface of the upper connecting pipe and they communicate internally. This utility model solves the problems of existing winding machines being unable to effectively clean the wool surface and unable to achieve winding of multiple wool layers, resulting in prolonged winding time.

The utility model relates to the technical field of hair care, and particularly discloses a fluffy comb which comprises a comb body provided with a plurality of elastic mounting parts. The first comb tooth group is at least partially mounted on the elastic mounting parts, and the first comb tooth group drives the elastic mounting parts to generate elastic deformation when being pressed. The fluffy comb can effectively solve the problems that in the combing process of an existing fluffy comb, the combing force is difficult to control, and the combing experience feeling is poor.

The application discloses synthetic leather composite silica gel humanoid robot simulation skin and a preparation method and application thereof, and belongs to the humanoid robot surface material application field. The skin comprises, from outside to inside, a synthetic leather layer with bionic texture, a water-based polyurethane interface layer with a thickness of 0.03-0.06 mm, and a silica gel layer. The water-based polyurethane interface layer is composed of a water-based polyurethane-silicone block copolymer with a hydroxyethyl acrylate end cap and a side chain containing a vinyl group. In the preparation, the water-based polyurethane interface layer is first formed on the back of the synthetic leather, then a platinum gold catalyst is sprayed on the interface and a mold, and finally the addition type liquid silica gel containing a silicon hydrogen bond is compounded in the mold and is cured at 24-26 DEG C and 40%-60% humidity. Peeling damage is realized to occur in the silica gel body; meanwhile, the interface layer and the synthetic leather cooperatively constitute a double barrier, so that the silicon oil exosmosis is avoided. The product has strong comprehensive advantages, and the process is environment-friendly and low in cost.

The utility model discloses a plastic bag winding correction anti-deviation device which comprises a rack, wallboards are symmetrically arranged at one end of the rack, a leading-in roller is rotationally installed between the wallboards through an adjusting mechanism, the other end of the rack is rotationally connected with a roller plate through a hinge, and a leading-out roller is rotationally connected to the roller plate. The side, away from the hinge, of the roller plate is connected with a working rod of an air cylinder through a hinged support, the air cylinder is connected to the rack through a hinged support, an adjusting roller is arranged in the middle of the rack, an end shaft at one end of the adjusting roller sleeves a first step base, an end shaft at the other end of the adjusting roller sleeves a second step base of a correcting mechanism, and the correcting mechanism is arranged on the supporting plate. The plastic bag guiding-in device is simple in structure, reasonable in design and novel and unique in idea, the height of the guiding-in roller is adjusted through the adjusting mechanism, effective contact guiding-in in the plastic bag width displacement process is facilitated, meanwhile, tensioning is achieved through rotation of the roller plate supported by the air cylinder, it is guaranteed that the tightness degree of the plastic bag is proper in the plastic bag width displacement process, and wrinkles generated during rolling are avoided.

This invention discloses a portable low-temperature plasma device based on a Laval nozzle structure and its application, belonging to the field of plasma technology application technology. Specifically, it includes (1) the construction of the device; and (2) the use of the device for fungal eradication treatment and transdermal drug delivery enhancement treatment. The beneficial effects achieved by this invention are as follows: This invention is the first to apply the Laval nozzle structure to a portable low-temperature plasma device. The results show that the device can effectively improve the plasma jet performance and active particle content, significantly improve the treatment effect of fungal infections of the skin and nails and the transdermal drug penetration efficiency, while solving the problems of large size, reliance on external power supply, and complex operation of traditional plasma devices. Therefore, using this invention for the treatment of fungal infections of the skin and nails and for enhanced transdermal drug delivery has advantages such as ease of operation, high safety, non-invasiveness, and high efficiency, and thus has potential application prospects in the field of skin disease treatment and transdermal drug delivery.

This invention discloses a Mg-modified hydrogenation catalyst and its preparation method. The Mg-modified hydrogenation catalyst is a sulfide-state catalyst, comprising a support, active metals Mo and Ni, and Mg. Characterized by TEM-EDS, the Mg content distributed in the Ni-Mo-S active phase region accounts for 65%-90% of the total Mg content. The modified hydrogenation catalyst of this invention can be used to treat low-quality secondary processed heavy oils, exhibiting good processing capacity and stability, especially for feedstocks with high olefin content.

The utility model discloses a medical supply packaging structure can reduce the oxygen and moisture content in the packing, including packing box, scavenger and sealed bag, the scavenger is built -in in packing box, and the sealed bag is set up in packing box outside and seals packing box. Packing box includes bottom shell and top cover, and the side edge of bottom shell is swingingly linked with the side edge of top cover, and bottom shell is equipped with at least one and is used for accommodating medical supply's accommodation cavity and at least one storage groove, and the edge of bottom shell is equipped with a plurality of first positioning piece, and the edge of top cover is equipped with a plurality of with first positioning piece one -to -one corresponding second positioning piece, and second positioning piece and first positioning piece interference fit make top cover with bottom shell cover, and in packing box cover state, the accommodation cavity and storage groove between have the breathable passage of intercommunication. Scavenger includes dehumidifier and oxygen scavenger, and dehumidifier and oxygen scavenger are contained in same storage groove or are contained in different storage groove respectively, for through the breathable passage and remove the moisture and oxygen in accommodation cavity.

The utility model relates to a solid hydrogen storage container, which comprises a cylinder body and end sockets fixedly welded with an opening of the cylinder body, baffle plates fixed with the end sockets are arranged in the cylinder body, and a water inlet pipe, a water outlet pipe and a charging pipe which are communicated with the inside of the cylinder body are fixedly connected on the outer side wall of one end socket. A coil pipe communicated with the water inlet pipe and the water outlet pipe is arranged on the baffle plate in a penetrating mode, and solid hydrogen storage assemblies are arranged on the inner side wall of the barrel and the inner side wall of the end socket. The hydrogen storage device has the beneficial effect that a worker can conveniently store hydrogen.

This invention discloses an Ag-modified hydrogenation catalyst, its preparation method, and its application. The preparation method of the Ag-modified hydrogenation catalyst of this invention includes: (1) sulfiding an oxidized hydrogenation catalyst to obtain a sulfidated hydrogenation catalyst; (2) desulfurizing the sulfidated hydrogenation catalyst obtained in step (1); and (3) introducing an organic solution containing Ag into the catalyst treated in step (2) to carry out a reaction, thereby obtaining the Ag-modified hydrogenation catalyst. The Ag-modified hydrogenation catalyst of this invention still exhibits good stability under low-sulfur conditions, and is particularly suitable for long-term processing of low-sulfur or sulfur-free raw materials.

The utility model relates to a heat dissipation assembly, electronic equipment and a vehicle, the heat dissipation assembly comprises a heat dissipation piece and a first heating device, the heat dissipation piece comprises a first main body part and a second main body part, the first main body part is provided with a first flow channel, and the second main body part is provided with a groove; the first heating device covers the groove and defines a second flow channel, the first flow channel is communicated with the second flow channel, and the first main body part is used for exchanging heat with a second heating device. By designing the second flow channel defined by the second main body part and the first heating device together, it is ensured that the cooling medium can make contact with the surface of the first heating device more directly and more effectively, heat is taken away more efficiently, and the heat dissipation efficiency is remarkably improved; therefore, the heat dissipation assembly can carry out efficient heat dissipation treatment on a plurality of heating sources at the same time, and the overall heat dissipation performance is greatly improved.

The invention relates to the technical field of photocatalysts, in particular to a nonmetal plasmon heterojunction material, a preparation method and application thereof and a method for preparing p-aminophenol through reduction of p-nitrophenol. The nonmetal plasmon heterojunction material provided by the invention comprises a C3N4 nanosheet and a WO3-x nanoplate (x is 0.1 to 0.3) positioned on the surface of the C3N4 nanosheet. The WO3-x local surface plasmon characteristic can effectively expand the spectral response range of the non-metal plasmon heterojunction material in a visible region to a near-infrared region, and the light absorption efficiency of the non-metal plasmon heterojunction material is remarkably enhanced. The nonmetal plasmon heterojunction material provided by the invention can realize efficient reduction of p-nitrophenol based on the synergistic effect of an interface heterojunction, a built-in electric field and oxygen vacancies, is high in selectivity, has excellent photocatalytic activity for reduction of p-nitrophenol, and is excellent in photocatalytic activity stability.

The utility model relates to the technical field of spray cleaning, and specifically discloses an energy-saving high-pressure spray cleaning machine, which comprises a machine body shell, a pipeline interface arranged on the top of the machine body shell, a high-pressure spray port installed in the machine body shell, and a machine door arranged on the right side of the machine body shell; further comprising: a bearing frame installed at the lower end of the high-pressure spray port and provided with a guide plate on the outer side of the bearing frame. The energy-saving high-pressure spray cleaning machine integrates a load detection structure inside the device, so that the device can judge the load condition according to the weight of the parts placed inside, avoid unnecessary energy waste caused by empty load or light load, reduce the operation cost of the device, and set a material driving structure inside the device, so that the material inside the device can be more effectively contacted with the cleaning liquid sprayed down, thereby cleaning the possibility of dead angle, and having better use effect.

The utility model relates to wind power gear box lubrication technical field especially relates to a kind of lubricating mechanism in wind driven generator gear box, including gear box assembly, further including generator;The rear end of gear box assembly is provided with generator;Gear box assembly includes transmission input shaft, transmission output shaft, input shaft bearing, output shaft bearing, planetary gear set, electromagnetic oil injection valve, lubricating oil quantity sensor, transmission shaft protective cover.The utility model judges whether the lubricating oil in gear box assembly is short of oil by lubricating oil quantity sensor detecting the oil quantity of lubricating oil in gear box assembly, and under the condition of oil shortage, control electromagnetic oil injection valve to spray lubricating oil in the inside of gear box assembly, lubricating oil is driven by the meshing of planetary gear set and centrifugal effect, so that lubricating oil is fully contacted with transmission mechanism, thereby effectively improve lubricating effect, and reduce the mechanical transmission performance problem caused by lubricating oil excess or too low.

The present application relates to the technical field of tunnel construction, in particular to a small-angle roof coal uncovering tunnel vault small-section coal uncovering process, comprising S1, excavating a ladder-type drilling field; S2, drilling and pumping a drainage hole; S3, setting up an extraction system; S4, performing extraction operation. The ladder-type drilling field is excavated in a limited ladder form in accordance with the overall trend of the bedding, and the drainage hole is drilled in a manner perpendicular to the step drilling surface, which can realize uniform distribution of drilling holes in the target area through drilling hole channels with approximately the same length. Since the direction of the drilling hole channel is determined, the drilling angle and depth can be quickly determined, the distance to the bedding surface can be easily predicted, the drilling speed and pressure of the drilling machine can be dynamically adjusted in advance, the construction safety is improved, the construction engineering quantity is reduced, the construction efficiency is improved, the hole completion rate is improved, and at the same time, the drilling hole channel can form a small-angle intersection with the bedding surface, so that the drainage hole can effectively contact more gas-containing bedding fissures, improve the coverage of the bedding surface area, and be beneficial to improving the mining efficiency.

The utility model relates to the technical field of waste gas treatment, proposes a multilayer waste gas absorption tower, including tower body, is set up with the gas inlet and the gas outlet on the tower body, the tower body has the spraying mechanism in, the spraying mechanism below has the processing mechanism, the processing mechanism includes the fixed cylinder fixed on the tower body inner wall, vertical processing hole is set up on the fixed cylinder, the processing hole inside has the processing piece, the processing piece includes the vertical setting support column and the spiral winding support column fixed spiral plate, spiral channel is formed to the lateral wall of spiral plate and processing hole. The utility model has the advantages that: the spiral channel is formed between the spiral plate set and processing hole, forces waste gas to change linear motion path, carries out spiral slow ascending motion, increases the contact time of waste gas and absorption liquid, improves waste gas treatment effect.

This invention discloses a laser tube cutting machine with an adaptive end-wall slag removal mechanism, relating to the field of laser tube cutting technology. It includes a cutting frame, a storage rack, and a transmission frame. The storage rack is installed on one side of the cutting frame, and the transmission frame is installed on the other side. Through innovative design, this laser tube cutting machine effectively collects molten slag during the cutting process and uses friction blocks to adaptively grind and clean the inner wall of the tube after cutting. This significantly improves cutting quality and the cleanliness of the inner wall. In particular, the friction block grinding and cleaning mechanism of this invention can automatically adjust the friction intensity and position according to the actual condition of the inner wall of the tube, effectively removing residual molten slag and providing a good foundation for subsequent processing. Compared with existing technologies, the friction block grinding and cleaning mechanism of this invention has higher cleaning efficiency and better cleaning effect, significantly improving the overall performance of the laser tube cutting machine.

This utility model discloses a hair dryer nozzle and a hair dryer having the nozzle. The nozzle includes: an air outlet assembly (24) disposed at the end of the nozzle (20) and having an air outlet (241); a fluid channel (22) communicating with the air outlet (241); and at least one negative ion emitting needle (29) with its tip (291) extending into the fluid channel (22). The air outlet assembly (24) has a window (242) disposed independently of the air outlet (241) and corresponding to the positions of the tips (291) of the plurality of negative ion emitting needles (29) along the axial direction of the nozzle (20). The hair dryer according to this utility model can ensure that the blown air has a high negative ion content to improve the care effect.

The present application relates to sewage treatment technical field, disclose sewage treatment device and sewage treatment method, sewage treatment device includes container, diaphragm, light source and reflux pipe, the inside of container is accommodating cavity, diaphragm is arranged in the container, diaphragm separates accommodating cavity into first area and second area, diaphragm is suitable for small molecule and dissolved solid pass, light source is arranged at one side of second area, reflux pipe is connected with first area and second area, the present application adopts diaphragm and separates the container into two spaces, sludge can only react in first area, microalgae can only carry out photosynthesis in second area, after photosynthesis, microalgae is backflowed to first area by reflux pipe, can improve sludge activity, reduce sewage treatment aeration energy consumption, improve sewage treatment nitrogen and phosphorus removal effect, reduce CO2 emission in the process of sewage treatment, to realize the goal of coordinated efficiency of sewage treatment of pollution reduction and carbon reduction.

The utility model discloses a device of supplementary cleaning mixer, including walking mechanism and cleaning brush, walking mechanism can walk along the outer wall of the mixing tank of mixer ring, cleaning brush verticality is established, and its upper end is connected with walking mechanism, and the horizontal distance between walking mechanism and cleaning brush can adjust and lock. The device is directly installed on the mixing tank when using, and the outer wall of the mixing tank is the moving reference, drives the cleaning brush to move, guarantees that the cleaning brush can always be in contact with the inner wall of the mixing tank effectively, completes the cleaning of the whole inner wall of the mixing tank, and the cleaning is thorough, avoids the residual in the mixing tank to cause the pollution of the material of next stirring, and improves product quality. When cleaning, the staff can complete the cleaning of the inner wall of the mixing tank by operating outside the mixing tank, and the operation is more convenient and safe.

The utility model relates to the technical field of cloth product compression and packaging, in particular to a device for pushing a compressed mop head, which comprises a base station, a mold frame, a mold pressing mechanism and a material returning mechanism, the mold frame is fixedly arranged on the base station, and the mold pressing mechanism is arranged on the base station and used for being matched with the mold frame to compress the mop head and push the compressed mop head out of a pressing groove; the material returning mechanism comprises a control assembly, a supporting rod, a telescopic sleeve and a material pushing rod, the control assembly is used for controlling the supporting rod to swing, the telescopic sleeve sleeves one end of the supporting rod and is slidably connected with the supporting rod, and the end, away from the supporting rod, of the telescopic sleeve slidably abuts against the face, away from the base table, of the mold frame. One end of the pushing rod is fixedly connected to the end, away from the supporting rod, of the telescopic sleeve. According to the utility model, the distance between the material pushing rod and the bottom of the pressing plate can be kept unchanged during movement, so that the situation that the mop head cannot be effectively pushed by the material pushing rod due to the small thickness of the compressed mop head is avoided.

The utility model relates to the related technical field of welding platforms, and provides a slurry tank welding platform which comprises a platform body and a plurality of bases, the bases are fixed to the bottom face of the platform body, rectangular grooves are formed in the two ends of the surface of the platform body, supporting assemblies are arranged on the platform body, and rectangular openings are formed in the surface of the platform body. The rolling adjusting assembly is arranged at the bottom of the platform, the supporting assembly comprises a pair of first sliding rails which are arranged at the two ends of the surface of the platform, second sliding rails are located on the two sides of the rectangular groove, a pair of supporting bases are slidably connected to the first sliding rails, a driving lead screw is arranged in the rectangular groove, and the supporting bases are connected with the driving lead screw in a threaded fit mode. By means of the technical scheme, the technical problems that in the prior art, due to the fact that a mud tank is usually large in size and irregular in shape, a planar welding platform lacks an effective fixing device, and the mud tank is difficult to be stably fixed to a proper position are solved.

The utility model provides a novel anti-corrosion and anti-abnormal-sound automobile door limiter, which belongs to the technical field of automobile manufacturing and comprises a limiting arm, a metal limiting box, a metal stop pin, a nylon plastic-coated shell, a plastic cover cap and a water baffle. Wherein the metal limiting box is arranged on the limiting arm in a penetrating manner; the metal stop pin is arranged at one end of the limiting arm; the nylon plastic-coated shell is arranged on the metal stop pin and used for protecting the metal stop pin, and the nylon plastic-coated shell has the functions of shock absorption and noise reduction; the plastic cover covers the metal limiting box and is used for protecting the metal limiting box, and the plastic cover and the nylon plastic-coated shell isolate abnormal sound generated by direct contact and collision between the metal stop pin and the metal limiting box; and the water baffle is fixedly connected with the plastic cover cap and shields the top of the limiting arm. According to the limiter, direct contact and collision between the metal stop pin and the metal limiting box can be avoided, abnormal sound generated by direct collision of metal parts is eliminated, and the overall corrosion-resistant effect of the limiter is improved.

The utility model provides a kind of refrigerator mounting assembly (100) of superconducting magnet, it includes sleeve body (10) and support heat conducting part (20). Sleeve body (10) is used to install refrigerator (200) and contains the cold output unit (B) of refrigerator (200). Sleeve body (10) has heat conducting unit (A) for heat exchange.Support heat conducting part (20) includes mutually connected support shaft (21) and contact piece (23), support shaft (21) is sealingly worn in heat conducting unit (A), contact piece (23) can abut against cold output unit, to enable cold output unit (B) to be realized with heat conducting unit (A) by support heat conducting part (20) heat exchange.The refrigerator mounting assembly is conducive to guaranteeing the effective contact of the cold output unit of refrigerator and refrigerator mounting assembly.In addition, superconducting magnet and magnetic resonance imaging system are also provided.

The invention discloses a heavy scrubbing device for scrubbing the surface of a steel belt, and relates to the field of steel belt surface treatment.The heavy scrubbing device comprises a workbench, racks are welded to the upper surface of the workbench, a shell is arranged on the portion, located on one side of each brush roller, of the rack, and the two ends of each shell are fixed to the wall body of the rack through screws; the surface, facing the brush roller, of each shell is a cambered surface and is provided with an opening, a bristle cleaning assembly is arranged at the bottom in the opening of each shell, the bristle cleaning assemblies are used for being matched with rotation of the brush roller and transversely moving to clean oxide scales embedded between brushes, and a horizontal wire scraping plate is arranged in the opening of each shell and located above the bristle cleaning assemblies. According to the device, loose impurities on the surface of the brush and oxide scales embedded into the root of the brush can be efficiently stripped, the cleanliness and brushing activity of the brush are kept, strip steel surface scratches caused by impurity attachment are eradicated, and the steel strip surface brushing quality is improved.

The utility model discloses a needle injection medicine bottle neck cutting device relates to medicine bottle opening equipment technical field, solves the problem of poor adaptability of cutting device in prior art to different specifications or manufacturing error's bottle neck cutting. The utility model discloses a support, is provided with rotary drive unit on the support, and rotary drive unit is used for driving the rotation of opening and closing mechanism with opening and closing mechanism cooperation, and the opening and closing end of opening and closing mechanism is provided with floating support mechanism, and floating support mechanism is connected with cutting piece. Floating support mechanism can provide floating support basis for cutting piece, thereby can make cutting piece adaptively adhere to the outer wall of the bottle neck of different specifications or different manufacturing error conditions under the control of opening and closing mechanism, guarantee the effective contact and cutting of cutting piece and bottle neck, solve the problem of poor adaptability of the existing device, improve the versatility, can drive cutting piece and rotate cutting along the bottle neck through the setting rotary drive unit, thereby cutting out the scratch at the bottle neck.

This utility model discloses a four-axis, four-motor shredder, belonging to the field of material crushing. The four-axis, four-motor shredder includes a base, a fixed frame at the upper end of the base, a material drop frame at the upper end of the fixed frame, and sliding blocks with cavities on both sides of the lower end of the material drop frame. A threaded rod with threaded engagement is threaded through the interior of each cavity. This utility model solves the problem in existing thin material shredders where a large amount of material falling simultaneously during the shredding process can easily cause jamming at the shredding position of the shredding roller, affecting the service life of the equipment. This utility model restricts the sliding blocks through a transmission frame, and the rotation of the threaded rod outside the sliding blocks drives the sliding blocks to move laterally inside the transmission frame. This lateral movement of the transmission frame can adjust the position of the material drop frame, guiding the material falling from its internal flow.