4669 results about "Sieve" patented technology

The invention relates to the technical field of screening, in particular to a dynamic sorting method and system based on multistage screening and airflow compensation. The method comprises the steps that 1, space phase screening pretreatment is conducted, specifically, in a rotary type multidirectional screening channel, white rice is made to rotate through a flow guide structure, the included angle between the long axis direction of rice grains and the long edge of a screening hole is obtained in real time, and the rotating angular speed of a screen is dynamically adjusted according to the included angle; 2, mass-airflow coupling sorting is carried out; step 3, performing deformation feedback optical sorting; 4, energy field cooperative control; and 5, dynamic convergence optimization: collecting a screen mesh pore passing rate, a rice grain group distribution entropy value and system total energy consumption power, constructing a state space, and adjusting vibration frequency, airflow pressure and light intensity parameters by adopting a stability judgment algorithm. According to the method, the screening precision is improved, the energy consumption is reduced, the production efficiency is improved, and the method has remarkable practical application value for the grain processing industry.

The invention relates to the technical field of material mixing, and particularly discloses a glass lining conical mixer which comprises a mixing cylinder, a filter sieve and a driver are arranged in the mixing cylinder, a stirring mechanism is arranged in the mixing cylinder, and the stirring mechanism comprises a plurality of adjusting assemblies, a plurality of bases and stirring paddles rotationally installed on the bases around the horizontal axis. The multiple bases are evenly distributed around the axis of the mixing barrel, the multiple adjusting assemblies are used for driving the bottoms of the bases to be at different heights so that the stirring paddles can be spirally distributed in the vertical direction, elastic parts for applying force to the stirring paddles to enable the stirring paddles to rotate to be in an inclined state are arranged on the bases, and the driver drives the filter screen to ascend. The filter sieve pushes each stirring paddle to rotate to a horizontal state, meanwhile, each base ascends and extrudes the adjusting assembly, and the filter sieve and each stirring paddle extrude and crush agglomerated materials. According to the glass lining conical mixer, the situation that materials in the mixing cylinder are caked can be avoided, and the mixing effect of the materials is improved.

A color-sorting and impurity-removing device for the processing of selenium-enriched organic rice, which device belongs to the technical field of the processing of selenium-enriched organic rice. The color-sorting and impurity-removing device comprises an inclined pipe (100), wherein a dispersing cover (101) runs through and is connected to the top surface of the inclined pipe (100); a limiter (102) is fixed to the position on an inner side wall of the dispersing cover (101) that is close to the top; a tooth-shaped ring (103) is rotationally connected to the inside of the limiter (102); and three circumferentially distributed dispersing rods (104) are fixed to the position on a bottom surface of the tooth-shaped ring (103) that is close to an edge. By means of the provided dispersing rods (104), lumps in rice discharged from a centralizing cover can be broken apart, and by means of a first spring (203), a first half gear (305) and a first toothed plate (306) which are provided, a sieve mesh (200) can vibrate, such that the lumps in the rice can be broken apart, making it convenient for a color sorter to identify impurities, thereby improving the impurity removal effect of the device.

The present disclosure relates to a process for preparing an upcycled material from a dry raw material with a moisture content of 0-30% w / w comprising lignocellulose and derived from spent cereal and / or pseudocereal grain and / or food waste or lignocellulosic biomass or a mixture thereof, the process comprising: a) a pre-treatment comprising the steps of: i) grinding and / or pulverizing the raw material to obtain a powder capable of passing through a sieve having a mesh size of 10-1000 μm and ii) performing autohydrolysis, followed by b) enzymatic hydrolysis of the of powder obtained from step ii), wherein the enzymatic hydrolysis comprises adding an enzyme mixture comprising at least a glucanase and a xylanase, and c) a post-treatment comprising the step of grinding and / or pulverizing the enzymatically hydrolysed mixture obtained from step b) to obtain the upcycled material in the form of a flour-like product.

Weed seeds are destroyed in the chaff from a combine harvester by primary and secondary destructors where the primary feeds to the secondary. The secondary can use repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. The primary can also use an impact arrangement of a different and simplified structure or can use another destruction modality such as radiation. The primary is mounted at a transfer device including a transverse auger which carries the chaff and weed seeds from the rear of the sieve to the secondary.

The present invention discloses a self-propelled cyperus chinensis combine harvester, belonging to the field of agricultural machinery technology. The harvester comprises a vehicle body, the front end of which is connected to a digging platform; a conveyor plate chain is provided on the digging platform, the rear end of which is connected to an elevator chain mechanism fixedly connected to the vehicle body; the rear end of the elevator chain mechanism extends into the front portion of a screen drum; a rotatable shaft is provided at the center of the screen drum; a plurality of grass guide blades and a plurality of throw ropes are connected to the shaft; a reciprocating vibrating screen is connected to the vehicle body below the screen drum; the outlet end of the berry elevator is located above a storage bin fixedly connected to the vehicle body; and a plurality of small sieve holes are formed on the collecting plate, the chain belt of the conveyor plate chain, and the chain belt of the elevator chain mechanism. While the space of the self-propelled vehicle body is limited, the present invention includes a five-stage screening mechanism, which has a strong soil screening capacity and can effectively screen out clods of soil carried by cyperus chinensis roots, thereby improving the efficiency and quality of cyperus chinensis harvesting.

A sieve plate of an upper-layer sieve lattice of the specific gravity grading stoning machine is provided with a large-hole area, a small-hole area, a reverse blowing area and a stone falling area, the aperture of sieve holes of the large-hole area is far larger than the grain size of grains so that heavy grains can fall conveniently, accumulation of grain materials on the sieve plate is reduced, and the aperture of the sieve holes of the small-hole area is smaller than the grain size of the grains so that the grain materials can fall conveniently. And in the reverse blowing area, heavy grains ascending along with the stones are reversely blown back to the large hole area through reverse blowing, excessive heavy grains are prevented from entering the stone falling area, material accumulation in the stone falling area is avoided, stone falling holes in the stone falling area are oblong holes, falling of the stones is facilitated, and therefore the stone removing and grading effects are effectively improved. The partition plates are arranged in the air suction opening and the upper screen cavity of the specific gravity grading stoning machine, the partition plates divide the inner cavity of the air suction opening and the upper screen cavity into the two air suction channels, and the air force of the two air suction channels is adjusted through the air adjusting turning plates, so that the air suction amount is reasonably distributed on the screen surface of the upper-layer screen lattice, and the material grading and impurity removing effect is improved.

The invention relates to the field of thermal power generation, and particularly discloses a coal crushing and screening device for a thermal power plant, which comprises a crushing box, an arc-shaped screen plate arranged at the upper end of the inner side of the crushing box, a main shaft rotationally arranged at the upper end of the screen plate and a crushing ring hammer fixedly arranged on the main shaft, an anti-blocking mechanism used for preventing the blanking groove from being blocked is arranged on the sieve plate, the anti-blocking mechanism comprises a sliding strip connected to the bottom wall of the sieve plate in a sliding mode, and an anti-blocking block matched with the blanking groove in a sliding mode is arranged at the top of the sliding strip; and a linkage mechanism which is used for driving the sliding strips to slide along the bottom wall of the sieve plate and is linked with the rotation of the main shaft is arranged on the outer side of the crushing box. According to the coal crushing and screening device for the thermal power plant, through the arrangement of the anti-blocking mechanism and the main shaft, the discharging groove in the screening plate can be cleaned during crushing and screening, blocking is avoided, and coal particles clamped in the discharging groove can be pushed out in cooperation with reinforcing ribs in the discharging groove.

The utility model discloses a hammer crusher, which belongs to the technical field of material crushing and specifically comprises a shell, a hammer component and a sieve plate, the hammer component and the sieve plate are arranged in the shell, a dredging component is arranged below the sieve plate and comprises dredging rods and a driving mechanism, the number of the dredging rods corresponds to that of holes of the sieve plate, and the driving mechanism controls the dredging rods to be inserted into or separated from the holes of the sieve plate. The dredging assembly is arranged in the machine shell, when the holes of the sieve plate are blocked and in the shutdown state, the driving mechanism controls the dredging rod to eject broken stones in the holes of the sieve plate out, blockage in the holes of the sieve plate can be cleared away without taking out the sieve plate when the sieve plate is blocked, time and labor are saved, and the cleaning efficiency is improved. And the cleaning efficiency is effectively improved.

The utility model relates to the technical field of mushroom sorting, and discloses a mushroom sorting device which comprises a long supporting frame, a short supporting frame is arranged on one side of the long supporting frame, and a top plate is arranged on the upper side of the long supporting frame. The screening structure is arranged in the long supporting frame; the screening structure comprises a screening plate movably connected into the long supporting frame, a baffle fixed to the side face of the screening plate, a gate plate arranged on one side of the baffle, an air cylinder telescopic rod fixed to the gate plate, a feeding box arranged on the lower side of the screening plate, supporting legs fixed to the lower side of the feeding box and screening holes formed in the screening plate. Mushroom located on the sieve plate is screened in a classified mode by forming the sieve holes with different hole diameters, after screening of one stage is completed, the gate plate can be opened to enter the next stage to be screened, and therefore multi-stage screening is conducted on the mushroom so as to deal with screening of the mushroom of different sizes, the mushroom which is not screened cannot be directly pushed to the next screening area through transverse screening, and screening efficiency is greatly improved. And the screening correctness can be ensured.

The invention relates to a bimolecular modified straw adsorbent as well as a preparation method and application thereof. The preparation method comprises the following steps: cleaning, drying and grinding straws, and sieving by a 100-mesh sieve; adding a polyethylene diamine solution, and carrying out stirring reaction at normal temperature; adding L-cysteine, adjusting the pH value to 4.5-5.5, and continuously stirring to react for 6-10 hours; and filtering, washing and drying to obtain the product. The preparation method has the advantages of simple steps, easily available raw materials and low requirements on equipment; the prepared bimolecular modified straw adsorbent has good removal effect and selectivity on Sb (III) and Sb (V), and is wide in pH value adaptation range. And a new technical means is provided for high-value conversion of straws and removal of antimony in water.

The utility model discloses a stone screening device for a stone crusher, and relates to the technical field of stone crushers. The device comprises a rack, a screening box is arranged above the rack; the opposite side walls of the screening box are connected with the rack through springs correspondingly. A plurality of vibration motors are connected to the bottom of the screening box side by side. A pair of rotating shafts is rotationally connected between the opposite side walls of the screening box side by side. Sieve plates are radially fixed on the two rotating shafts; a plurality of sieve holes are formed in one surface of each sieve plate side by side; the two rotating shafts are connected through a rotating driving assembly; the rotary driving assembly is used for turning over the two sieve plates by driving the two rotary shafts to rotate. The sieve plate cleaning device is reasonable in structural design and convenient to use, and the cleaning efficiency of broken stones clamped on the sieve plate is effectively improved.

The invention discloses a composite heavy metal adsorbent synthesized through mineral conversion and a preparation method of the composite heavy metal adsorbent, and belongs to the technical field of deep processing of natural nonmetallic minerals and preparation of heavy metal adsorption functional materials, and the main preparation method comprises the following steps: S1, crushing and crushing natural clay minerals, and sieving with a 80-mesh sieve to obtain mineral powder; s2, mixing the obtained mineral powder with a calcium compound, and carrying out ball milling; s3, adding a boron compound, and continuing ball milling; s4, adding water into a solid material obtained by ball milling according to a solid-to-liquid ratio of (1: 5)-(1: 20), putting into a microwave hydrothermal reaction kettle, adding an organic auxiliary agent, carrying out gradient heating to 100-200 DEG C, reacting for 30-120 minutes, then naturally cooling to room temperature, separating, drying and crushing; according to the invention, natural clay raw ore is taken as a raw material, and the borate-silicate composite adsorption material is prepared in a preparation mode of combining solid-phase reaction and microwave hydrothermal treatment, so that high-concentration and low-concentration heavy metal ions are efficiently removed.

The invention discloses a transplanting device for landscaping, and relates to the technical field of landscaping. A digging shielding cylinder is fixedly arranged between two sides of an inner cavity of an outer support mounting frame through a support, and a middle annular base plate is arranged in the digging shielding cylinder. According to the transplanting device for landscaping, by arranging a re-crushing mechanism, a vibration screening mechanism and a neatening and shaping mechanism among a digging shielding cylinder, a middle annular base plate, an annular rotating sleeve, a conveying cylinder and a spiral shaft, the device can automatically dig planting pits through cooperation of the re-crushing mechanism, the vibration screening mechanism and the neatening and shaping mechanism, the digging efficiency is improved, and the device is convenient to use. And soil blocks generated during pit digging are further crushed and vibrated synchronously, so that follow-up soil covering and backfilling are facilitated, broken soil is neatened and fixed, the broken soil is conveniently collected to the periphery of the tunnel, and the broken soil is prevented from being thrown to the ground at will.

The invention relates to the technical field of turpentine processing, in particular to a turpentine continuous melting and clarifying processing device and method.The turpentine raw material is put into a feeding cylinder, piled in an inclined scattering cylinder, subjected to axial autorotation along with the feeding cylinder, discharged downwards and distributed in all areas in a dissolving tank, and after dissolving is completed, the turpentine raw material is poured into the feeding cylinder to be subjected to continuous melting and clarifying processing. When the telescopic part drives the sieve plate to move upwards until the bottom end of the movable cylinder abuts against the sieve plate, the sieve plate axially rotates along with the feeding cylinder and drives the movable cylinder to axially rotate, so that the material leakage port and the material scattering port are staggered, the movable cylinder rolls solid matters in the circumferential direction of the sieve plate, and the resin liquid is discharged into the clarifying tank along the liquid leakage pipe while slag is discharged from the slag outlet; after grease water in the clarification tank is layered, most of the water layer is discharged, the grease water is put into the feeding cylinder for circular treatment, and the steam injection system and the emptying pipe in the clarification tank are opened for distillation treatment, so that the continuous processing efficiency is further improved.

The invention relates to the technical field of aquatic product processing, and discloses a fishbone removing device used on a production line, the fishbone removing device comprises a conveyor, the bottom of the conveyor is fixedly connected with a first fixing plate, the side wall of the first fixing plate is fixedly connected with a motor, the side wall of the conveyor is fixedly connected with an inclined plate, and the inclined plate is fixedly connected with the bottom of the conveyor. A motor is started to drive a rotating disc to rotate, a first connecting rod rotates and rotates on the right side of a fixed frame, the first connecting rod can drive the fixed frame to move in a reciprocating mode, in the moving process, the fixed frame slides in a sliding frame through a first sliding frame, the fixed frame descends when moving towards a screen plate, and the screen plate moves towards the fixed frame through rotation of a rotating plate; the second sliding frame slides in the sliding frame, the sieve plate can ascend when moving towards the fixed frame till the fixed frame makes contact with the fish steaks, the fish steaks are rubbed, fish fibers are separated more sufficiently, fish is prevented from being attached to fish bones when squeezed, and fish residues on the fish bones are reduced.

The present invention provides a class of ultra-high molecular weight polyethylene microparticles having a small particle size and a low bulk density. Specifically, the present invention provides microparticles having the following characteristics: (a) a viscosity-average molecular weight in the range of 1 million to 5 million; (b) at least 90% by weight passing through a 100-mesh sieve; a particle median diameter (d50) of 40 μm < d50 < 80 μm; and (c) a powder bulk density of 0.25 to 0.33 g / cm 3 The ultra-high molecular weight polyethylene particles provided by the present invention are suitable for producing microporous filter materials.

The invention belongs to the technical field of separating screens, and particularly relates to a separating screen dredging device which comprises a base, a frame with an adjustable inclination angle is installed above the base, a screen frame is elastically connected to the upper portion of the frame, a screen plate is fixedly installed in the screen frame, and vibration motors are fixedly installed on the two sides of the screen frame. A plurality of sieve holes distributed in a matrix mode are formed in the sieve plate, a visual camera for conducting visual detection on the sieve holes in the sieve plate is installed on the base, and a shearing and reverse blowing assembly used for conducting shearing and reverse blowing dredging on sunflower seed materials blocked in the sieve holes is arranged above the sieve plate. According to the sunflower seed screening device, sunflower seed materials clamped in the screening holes can be sheared through cooperation of the rectangular plates and the edges of the screening holes, then the sunflower seed materials remaining in the screening holes are pressed down and reversely blown, and therefore dredging of the blocked screening holes can be completed.

The invention relates to the technical field of crushers, and particularly discloses a crusher which comprises a rack, a plurality of sieve plates and a crushing hammer, the sieve plates are distributed at the bottom of the rack in an arc shape, a sieve hole is formed between every two adjacent sieve plates, and a movable plate is elastically and slidably arranged on the left side wall of each sieve hole in the length direction of the crushing hammer; friction teeth are arranged on the opposite faces of the movable plates and the sieve plates so that materials can be crushed when the movable plates move towards the rotating center away from the crushing hammer, a pushing assembly is rotationally arranged on each sieve plate, a movable part is arranged on the front side of each pushing assembly in a front-back sliding mode, and reset pieces are installed between the movable parts and the sieve plates. A driving piece is mounted between the movable part and the rotating center of the breaking hammer, and a connecting piece is mounted between the movable plate and the movable part; materials in the screen holes fall off after being abraded through movement of the movable part, and the materials which do not fall off in the screen holes are removed by the pushing assembly.

The present application relates to the technical fields of animal feed preparation, and discloses a livestock feed preparation device, in order to solve the problem of clogging when the filter screen filters for a long time, the sieve cylinder is driven to rotate by the driving shaft, in this process, the relative movement between the driving wheel and the inside of the shell is utilized to force the driving wheel to move in the opposite direction between the driving sieve roller and the driven sieve roller by the transmission gear set. Since the filter part is located between the distance between the driving sieve roller and the driven sieve roller, the feed meeting the distance can be screened out, and the large stone or the granular particles are retained in the inside of the sieve cylinder. By the continuous rotation of the driving sieve roller and the driven sieve roller, the filter material clogged between the two is driven to have a tendency to move away from the filter part, thereby preventing the filter part from accumulating, and finally realizing the effect that the filter part is not easy to be clogged.

The invention discloses an extraction tower, which comprises a tower body, a main shaft, a reciprocating lifting member, an autorotation member, a motor and a movable sieve plate group, the main shaft is rotatably arranged in the tower body, the main shaft and the tower body are coaxially arranged, the reciprocating lifting member is fixedly installed on the top of the main shaft, the reciprocating lifting member is used for enabling the main shaft to do reciprocating lifting motion, and the autorotation member is used for rotating the main shaft. The top and the bottom of the rotation part are fixedly connected with the main shaft and the bottom inner wall of the tower body respectively, the rotation part is used for enabling the main shaft to rotate, and the multiple movable sieve plate sets are evenly distributed outside the main shaft. The device not only can oscillate and scatter a liquid material in the vertical direction, but also can stir and scatter the liquid material in the horizontal direction, double multi-stage dispersion operation is achieved, the solvent liquid material mixing and contacting effect is improved, and the solvent liquid material contacting degree is guaranteed.

The invention relates to a solid-liquid mixture particle screening, grading and applying device, and belongs to the technical field of soil treatment. The device comprises a screening box body with an inlet and an outlet, multiple stages of screening mechanisms are sequentially arranged in the box body, and each stage comprises an inclined screening plate and a driving assembly; the sieve plate is linked with the swing connecting rod through the eccentric wheel to achieve digging, transporting and throwing actions, the sizes of meshes are gradually reduced to separate particles with different particle sizes, and oversize materials are conveyed to the independent applying and scattering openings through the corresponding screw rod bins. In the working process of the device, small particles preferentially improve the soil through bottom layer screening, and large particles enhance the wind and sand resistance through the surface application layer, so that the soil fertility improvement and sand stabilization effects are synchronously achieved. Through the optimal design of the swing path of the sieve plate and the precise material conveying of the screw bin, the problem that a solid-liquid mixture is difficult to layer and cover in desertification control is solved, the sorting efficiency and the spreading uniformity are improved, and the device has the characteristics of being compact in structure, reliable in driving and high in applicability, and is suitable for large-scale control of desertification and saline-alkali soil.

A grain cleaning system for a combine harvester having a transmitter adapted to transmit a base signal at a known frequency and one or more spaced receivers for detecting signals of a different frequency as reflected from airborne grain and other materials within the duct of the grain cleaning system. An Electronic Control Unit modulates the base signal and the reflected signals to obtain Doppler signals or frequencies from which an average particle velocity is determined. The particle velocity is used as an input parameter for the generation of control signals for the adjustment of various working units of the combine harvester including, by way of example, the fan and sieves.

The invention discloses a low-resistance and easy-to-clean frame filter and a filtering method, and relates to the technical field of filtering equipment, the frame filter comprises a washing liquid storage tank, a gas-liquid mixing device, a rotary distribution head, a filter plate fixing device, filter cloth, a filter frame, a sieve plate, a washing pipe, a sieve plate supporting sleeve, a filtrate storage tank and a washing nozzle. According to the invention, a material flowing space is constructed between the sieve plates by using the sieve plate supporting sleeve, so that the filtrate flow of a traditional plate-and-frame filter is shortened, and the filtering resistance is obviously reduced; the gas-liquid mixing device is combined with high-pressure gas, so that the cleaning effect is effectively enhanced; after the filter plate fixing device is loosened, the filter cloth and the filter cake can be easily separated and fall off. According to the invention, a traditional plate frame type filter is transformed, so that the formed frame type filter can remarkably reduce the filtering pressure and energy consumption, greatly improve the filtering efficiency and the filter cake washing rate, reduce the maintenance cost and prolong the service life of equipment, and is suitable for various filtering scenes.

The invention provides an intelligent identification and efficient separation method for organic and inorganic materials in construction waste, and relates to the technical field of construction waste classification. The method comprises the following steps: firstly, screening the construction wastes into large interferents, materials in the screen and materials under the screen by using a primary screening machine; large interferents are crushed by the pickaxe machine and then are fed to the first-stage screening machine again; the materials in the screen are sorted by an intelligent sorting robot; the screen underflow is screened into a secondary oversize product, a secondary in-sieve product and a secondary screen underflow by a secondary screening machine; light substances are sorted out from the secondary oversize materials and the secondary in-sieve materials through a winnowing machine and conveyed to a combustible temporary storage area to be temporarily stored, and light substances in the sorted heavy substances are removed; and the purified heavy substances are crushed and then screened by an aggregate screening machine. By means of the method, intelligent fine efficient sorting of organic / inorganic materials can be achieved, the cleanliness and the recovery rate of recycled aggregate are improved, high-added-value utilization of construction waste end products is promoted, and optimization of environmental, social and economic benefits is achieved.

The efficient wetting production equipment comprises an elevator, an outlet of the elevator is communicated with a powder storage bin, the bottom of the powder storage bin is communicated with a powder supply dispersion component, the powder supply dispersion component is communicated with the top of a wetting tower body, the wetting tower body is matched with a water supply system, and a constant-pressure dust removal chamber is arranged at the bottom of the wetting tower body; the constant-pressure dust removal chamber is communicated with the dust remover, the dust remover is communicated with an air flow groove of the elevator, a first conveyor is installed at the bottom of the wetting tower body, the output end of the first conveyor is detachably connected with the drum screen device, a second conveyor is arranged at an output port of the drum screen device, and the output end of the second conveyor is communicated with the powder waking bin. And an output end arranged at the bottom of the powder waking bin is matched and connected with the fourth conveyor. By adjusting the number of the powder supply dispersion components, the water supply amount of the water supply system, the dust removal power of the dust remover and the diameter of the wetting tower body, a feasible scheme can be formulated for production lines with different powder production amount requirements under the condition that the good wetting powder production effect is guaranteed.

The utility model relates to the technical field of wheat bran finishing machine equipment, in particular to a wheat bran finishing machine for flour production, which comprises a screening mechanism for separating bran from flour, a support for supporting the screening mechanism is arranged on the outer side of the screening mechanism, and a feed hopper is fixed at one end of the screening mechanism. The anti-blocking mechanism is used for preventing bran from blocking the screening mechanism after bran finishing. The fixing plate and the bran finishing plate are driven to whip bran and flour through rotation of the rotating shaft, so that separation of the flour and the bran is accelerated, meanwhile, an adjusting screw can be rotated according to the size of the bran, and then the gap between the bran finishing plate and the screening barrel is adjusted; the two brushing and sweeping frames are driven by the two guide rods to move in a reciprocating mode through rotation of the concave-convex plate at the end of the rotating shaft, bran clamped in the screen holes is cleaned through the hard brushes on the brushing and sweeping frames, and the situation that the bran and flour block the screen holes, and consequently the flour is wasted is prevented.

The invention relates to the technical field of grain storage, and discloses a grain impurity treatment device of a static grain dryer, which comprises a dryer body, and the upper surface of the dryer body is fixedly connected with an E-shaped frame; the lower surface of the impurity removing box is fixedly connected with the upper surface of the E-shaped frame, the bottom of the impurity removing box is open, a feeding port is formed in the outer surface of the impurity removing box, a first partition plate and a second partition plate are fixedly connected to the inner wall of the impurity removing box, and the second partition plate is located on the side, away from the feeding port, of the first partition plate. A screen drum is rotationally connected between the first partition plate and the impurity removing box, and center shafts are fixedly connected to the two opposite sides in the impurity removing box. The grain impurity treatment device of the static grain dryer can effectively solve the problems that in the prior art, flowing large-particle impurities easily drive part of grain particles to be jointly discharged from the impurity discharging opening of the screen drum, so that actually available grains are reduced, and the grain yield and the overall income are reduced.

The present disclosure provides a pet toilet, wherein: when the roller rotates from the original position toward the defecation position, the pet sand can enter the third accommodation space through the sieve component, the excrement is limited out of the third accommodation space; the sealing door opens the second opening, the first opening rotates along with the roller to be aligned with the second opening, such that the excrement can be discharged by its own gravity into the second accommodation space through the first opening and the second opening; when the excrement is discharged into the second accommodation space of the fecal collection box, and the roller rotates from the defecation position toward the original position, the pet sand in the third accommodation can pass through the sieve component and falling back into the first accommodation space by its own gravity, and the sealing door closes the second opening.

The invention relates to the technical field of waste water circulation, in particular to a centrifugal waste water recycling device based on aluminum fluoride production, which comprises a shell, an impeller I and a screen drum, the impeller I is fixedly mounted in the screen drum, the screen drum is rotatably mounted in the shell, and a separation assembly is movably mounted in the shell. And the separation assembly comprises a discharging barrel and a rotating rod, the discharging barrel penetrates through the side wall of the shell and is fixedly connected with the shell, and a discharging conical barrel is fixedly installed below the screen drum. Precipitated particles are driven by a spiral plate to move towards a discharging opening, waste water is further screened, in the process that the particles are conveyed by the spiral plate, the particles are collected through a groove, the particles are prevented from being washed away by waste water, the groove abuts against a conical head, and a vibration rod drives a second scraping block and a first scraping block to knock and clean the inner wall of a discharging conical barrel. The particles are prevented from being attached to the interior of the discharging conical barrel, the screen barrel is cleaned through the spraying pipe from outside to inside, and screen holes of the screen barrel are prevented from being damaged.