88results about How to "Fall quickly" patented technology

The invention relates to a crushing device for petroleum coke, in particular to an efficient crushing device for petroleum coke and aims at achieving the technical purpose of providing the efficient crushing device for petroleum coke, wherein the efficient crushing device for petroleum coke is easy to operate, capable of saving time and labor, good in crushing effect and high in work efficiency. To achieve the above technical purpose, the efficient crushing device for petroleum coke is provided and comprises a bottom plate and the like. The top of the bottom plate is provided with a collecting frame and a support. The collecting frame and the support are connected with the top of the bottom plate in a bolt connection manner. The collecting frame is located on the left side of the support, the support is vertically arranged, and lower portion of the left side face of the support is connected with a transverse plate in a bolt connection manner. A discharging device is arranged on the left side of the transverse plate and provided with a first crushing device. According to the crushing device, a crushing plate and a crushing block are adopted for repeatedly crushing the petroleum coke, and the crushed petroleum coke can pass through discharging holes to fall into the collecting frame.

The invention relates to a solid coagulant feeding device which is used for sewage treatment and possesses crushing function. The solid coagulant feeding device is capable of crushing solid coagulant,reducing sewage treatment cost, increasing feeding efficiency, and increasing sewage treatment working efficiency. The solid coagulant feeding device comprises a trolley, a support, and the like; theright side of the top of the trolley is connected with the support; the upper part of the left side surface of the support is connected with a crushing box. According to the solid coagulant feeding device, a first crushing device, a second crushing device, a grinding device, and a feeding device are driven by a drive device to work, so that crushing of solid coagulant is realized, and sewage treatment working efficiency is increased.

The invention relates to bulb treatment equipment, in particular to waste and abandoned bulb treatment equipment, and aims at providing the waste and abandoned bulb treatment equipment with the advantages that the time and the labor are saved; the treatment efficiency can be improved; the use is convenient; the operation is simple. In order to solve the technical problems, the invention provides the waste and abandoned bulb treatment equipment, which comprises a base, support rods, a treatment box, a discharging hopper, a crushing device, a support plate and the like, wherein the top of the base is vertically connected with two support rods through screw bolts; the two support rods are symmetrical at the left side and the right side; a treatment box is connected between the top ends of thetwo support rods; the top of the treatment box is in an open opening type arrangement; the discharging hoper is arranged at the lower part of the left side surface of the treatment box; the crushingdevice is arranged in the treatment box. The crushing device can be driven by the driving device to perform crushing treatment on the waste and abandoned bulb, so that the effects that the time and the labor are saved; the treatment efficiency can be improved; the use is convenient; the operation is simple.

The invention relates to a toy, and in particular relates to an intelligence development toy for sand playing of children. The invention aims at providing the intelligence development toy for sand playing of children, which can realize scattering of sand, can improve the intelligence development effect, and is easy to use. To solve the technical problems, the following technical scheme is adopted: the intelligence development toy for sand playing of children comprises a bottom frame, a guide sleeve, a first rotation shaft, first blades, a vertical board, a flow guide pipe, a scattering barrel, and the like, wherein a guide hole is formed in the upper part of the left side of the bottom frame, the guide sleeve is connected to the top of the inner side of the bottom frame through bolts, the first rotation shaft is arranged in the guide sleeve, the left side of the first rotation shaft is positioned in the guide hole, and the plurality of first blades are connected to the first rotation shaft between the guide hole and the guide sleeve at uniform intervals through bolts. A rocking bar is shaken clockwise, the intelligence development toy then carries out intermittent blanking, the wet and caked sand can be scattered, the first blades can rotate, and a spray nozzle can spray water.

The invention relates to a water meter verification device and method. The device comprises a power driving mechanism (1), and a piston system (2) connected with the power driving mechanism (1) and capable of reciprocating under the driving of the power driving mechanism (1), wherein the water outlet of the piston system (2) is connected with a to-be-verified water meter (4) through a water outlet valve (3); and the outlet of the to-be-verified water meter (4) is connected with a water tank (5) connected with the piston system (2) through a water inlet valve (7). The device further comprises a reading device (8), and a control device (9) connected with the power driving mechanism (1), the water outlet valve (3) and the reading device (8). Compared with the prior art, the control device drives the piston system under the driving of the power driving mechanism, so that the piston system generates a standard water flow to flow through the to-be-verified water meter, and the water flow is an actively generated standard value; and additional water pump and pressure stabilizing equipment are not required, and the water pressure is table during the whole test process.

The invention relates to a dust remover provided with an electrostatic wheel. The dust remover provided with the electrostatic wheel comprises an electrostatic generator, a dust removal cavity, a purification cavity and a dust hopper, wherein a driving disk is fixedly mounted on one side wall of the dust removal cavity, and four electric conducting pieces are rotationally and symmetrically embedded in the disk surface of the driving disk and electrically connected with a positive pole, an earth wire, a negative pole and the earth wire of the electrostatic generator sequentially in the clockwise direction; the electrostatic wheel is also movably mounted in the dust removal cavity; an electric brush is welded at one end of a rotating shaft, electrically connected with the electrostatic wheel and contacted with the driving disk all the time when rotating with the rotating shaft; a discharger is mounted at an air inlet and electrically connected with phase changers; the phase changers are electrically connected with the electrostatic generator and mounted on the disk surface of the driving disk. The dust remover is unique in structure, can effectively prevent dust accumulation while removing dust efficiently, and can guarantee the dust removal effect for a longer time.

The invention relates to an extracting device for water bodies with different depths. The device comprises a support, a top plate, a telescopic rod, a first spring, an electric winding wheel, a guidering, a fixed pulley, a stay cord, a floating plate, a water collector, an electromagnet, an iron piston and the like, wherein the top plate is horizontally connected to the right side of the top of the support; a sliding chute is formed in the top plate. The extracting device disclosed by the invention achieves simple structure and convenience in operation, and can simultaneously sample differentdeep water segments at the same position, so that the result of water quality detection is more accurate and high precision is realized.

The invention relates to the technical field of foundation pit fences, in particular to a foundation pit safety fence for a bridge engineering construction site. A fence rod is movably embedded and connected in a base, a fence frame is movably connected to the outer surface of the fence rod, a wind direction rod is movably connected in the fence rod, and a wind direction wheel is fixedly connected to the top end of the wind direction rod. Threaded rods are fixedly connected to the bottom end of the wind direction rod and extends into the base, toothed plates are engaged to the two sides of the outer surface of the threaded rods, first connecting rods are movably connected to the outer surfaces of the toothed plates, second connecting rods are movably connected to the bottom ends of the first connecting rods, and pressing rods are movably connected to the bottom ends of the second connecting rods. Reinforcing plates are fixedly connected to the bottom ends of the pressing rods, the first connecting rods and the second connecting rods drive the pressing rods to downwards push the reinforcing plates to be attached to the ground, then the contact area between the base and the ground is increased, the effect of resisting wind blowing is achieved, and the fence is prevented from being blown down by strong wind.

The invention relates to a drop-out fuse. The fuse comprises an insulator, a fuse tube, an upper electrode, a lower electrode, an installation column, a side pushing device and a clamping device; theupper electrode and the lower electrode are arranged at the two ends of the insulator; the upper electrode comprises an upper electrode connecting plate, a static contact piece, a main pressure springand a rain cove; the installation column is fixedly installed on the upper electrode connecting plate, and the fuse tube is provided with a first step, a second step and fixing protrusions; the sidepushing device is mounted on the mounting column and the acting direction points to the fuse tube; a holding and clamping device is fixedly arranged on the mounting column and slides along the fuse tube; the holding and clamping device has a closed state and an open state through matching with the first step and the second step, and the holding and clamping device is buckled with the fixed bulge when being in the closed state and is separated from the fixed bulge when being in the open state, so a windproof function is achieved, and the fuse tube can conveniently and quickly fall off to quickly cut off a circuit.

The invention belongs to the technical field of agricultural big data, and particularly relates to a seed sorting device for agricultural big data breeding. The seed sorting device aims at achieving the technical aims that the seed sorting device for agricultural big data breeding is low in manufacturing cost, high in practicality, high in work efficiency and easy to operate and saves manpower and time. In order to achieve the technical aims, the seed sorting device for agricultural big data breeding comprises a bottom plate, a left side plate, a support, a fixed plate, an outer frame, a drainage pipe, a drainage valve, a filtering screen, an air cylinder, an inner frame, a push plate, a bearing pedestal, a rotary shaft, a gear and the like. The left side plate is vertically welded to the left side of the top of the bottom plate, and the support is vertically and symmetrically welded to the right side of the top of the bottom plate. The seed sorting device for agricultural big data breeding has the beneficial effects of being low in manufacturing cost, high in practicality, high in work efficiency and easy to operate and saving manpower and time.

The invention discloses auxiliary equipment for speaker assembly processing, and the auxiliary equipment comprises a finished product conveying and moving mechanism and a supporting installation bottom plate horizontally fixed at the bottom of the finished product conveying and moving mechanism; a finished product assembling mechanism is installed at the right side of the supporting installation bottom plate; the finished product conveying and moving mechanism comprises an installation bracket and a conveying and adjusting mechanism distributed at the top of the installation bracket; the center of the bottom of the conveying and adjusting mechanism is provided with a self-cleaning mechanism; the left and right ends of the bottom of the installation bracket are connected with lifting brackets through hinging seats, the bottoms of the lifting brackets are connected with support stands by lifting and adjusting mechanisms; the bottoms of the support stands are horizontally provided with support bases; and four internal thread adjusting and supporting cylinders in rectangular distribution are installed around the bottoms of the support bases. Through scientific and reasonable structuraldesign, the auxiliary equipment for the speaker assembly processing provided by the invention can quickly assemble the speaker finished product into a box, reduce the labor cost input, improve the assembly efficiency, ensure the stability during the assembly process, and have wide application range and good practical and popularization value.

The invention discloses an efficient and quick water-saving cleaning device for electronic elements. The cleaning device comprises a water tank; the left side of the water tank is fixedly connected with a left edge plate, and the right side of the water tank is fixedly connected with a right edge plate; vertical plates are welded on the upper surfaces of the left edge plate and the right edge plate separately; a top plate is welded between the top ends of the two vertical plates; an air separation pipe is mounted on the bottom surface of the top plate; and the two ends of the air separation pipe are both of closed structures. The efficient and quick water-saving cleaning device for the electronic elements uses a driving motor for driving a second disc to rotate, and then, uses a projectionon the second disc for pushing a cleaning cylinder to the left side of the driving motor; and when the projection is aligned to a groove, the cleaning cylinder moves to the right side under the elastic force effect of a return spring, and performs a reciprocating motion in the horizontal direction, so that the electric appliance elements placed in the cleaning cylinder are cleaned more thoroughly, the cleaning efficiency is improved, and the labor intensity of workers is relieved.

The invention relates to a vegetable skin cleaning apparatus, in particular to an agricultural efficient skin cleaning apparatus for tuberous vegetables. The technical problem to be solved herein is to provide an agricultural efficient skin cleaning apparatus for tuberous vegetables which is lower in manpower and time consumption and good in cleaning effect and requires low labor intensity. In order to solve the above technical problem, the invention provides such an agricultural efficient skin cleaning apparatus for tuberous vegetables, comprising a bottom plate, a support, a top plate, a side-to-side shifting device a cleaning device and the like; the support is vertically mounted at the left end of the top of the bottom plate through bolt connection, the top plate is horizontally mounted at the right top of the support through bolt connection, and the side-to-side shifting device is arranged at the bottom of the top plate. A brush is shifted side to side constantly in order to clean the skin of tuberous vegetables, so that the agricultural efficient skin cleaning apparatus for tuberous vegetables is lower in manpower and time consumption and good in cleaning effect and requires low labor intensity.

The invention relates to a grill, in particular to a grill with low carbon smoke pollution. The purpose is to provide a grill with low carbon smoke pollution, which is capable of filtering the smoke and and the charcoal ash in which can be conveniently cleaned. According to the technical scheme: the grill with low carbon smoke pollution comprises a rack, a water pipe, a valve, a water tank, a filter screen and the like; a smoke suction pipe is arranged at the concave part of the right side surface of the grill; the lower part of the smoke suction pipe is connected with the water tank; the bottom end of the smoke suction pipe is arranged in the water tank. The lower part of the left side surface of the water tank is connected with the water pipe, the valve is arranged on the water pipe, anair outlet pipe is arranged on the right side of the top of the water tank, and the filter screen is arranged in the air outlet pipe. Rotating blades can rotate continuously, can input the smoke generated during the barbecue into the water tank, and the water in the water tank can filter the smoke, so that the smoke dust can be prevented from being directly discharged into the air, the air pollution can be prevented, and the environment can be protected, a push plate moves to the left, so that the charcoal ash can quickly fall into a ash collecting box, therefore, the charcoal ash can be conveniently cleaned.

The invention relates to a conveying device for aluminum balls. The conveying device comprises a rack separation device, a detection device and a conveying device body, wherein the conveying device body comprises an input chute and an output chute; the input chute is provided with a bulge; the separation device comprises a cam mechanism, an oscillating rod and a fixing device; the fixing device is connected with one side of the bulge; the fixing device is internally connected with a pushing piece; the middle part of the oscillating rod is hinged to a rack; the two ends of the oscillating rod are connected with the cam mechanism and the oscillating rod respectively; a piston device is arranged on the other side of the bulge; the detection device comprises a detection barrel, a pneumatic pump, a diaphragm and a variable resistor; the pneumatic pump is connected with the detection barrel; a movable piece pin of the variable resistor is connected with the diaphragm; the lower part of the output chute is connected with a coil rotation device; and the variable resistor is connected to the coil rotation device. With the adoption of the conveying device, the problems in an existing ball sorting and conveying process, such as manual error, low efficiency and high equipment cost, can be solved.

The invention discloses a seed filtering device and belongs to the technical field of agricultural big data. The seed filtering device comprises a bottom plate, a left side plate, supports and a fixing plate. The left side plate is vertically welded to the left side of the top of the bottom plate. The supports are vertically and symmetrically welded to the right side of the top of the bottom plate. The fixing plate is horizontally welded to the middle of the right side face of the left side plate. A feeding hopper is welded to the upper portion of the left side of the left side plate. A primary filtering portion for filtering away granules and dust with the size larger than that of seeds is arranged on the fixing plate. The feeding hopper communicates with the primary filtering portion. The supports are provided with a separation portion. The primary filtering portion communicates with the separation portion. Seeds to be sorted enter the primary filtering portion through the feeding hopper and then enter the separation portion. An inner frame is arranged in the separation portion, a rotating shaft is fixed to the bottom of the inner frame, and the rotating shaft is connected with a motor. The seed filtering device achieves the effects that the manufacturing cost is low, practicability is high, labor is saved, time is saved, working efficiency is high and operation is easy.

The invention discloses a water-saving sand washer which comprises a first base. A sand washing box is installed at the top end of the first base, a center shaft is installed in the sand washing box, a spiral blade is mounted on the center shaft, a second base is installed at one end of the first base, symmetrical rectangular frames are installed at the top end of the second base, moving blocks are slidably clamped in the rectangular frames, a rotating cylinder is installed between the symmetrical moving blocks, a discharging channel is installed on the outer side of the rotating cylinder, a discharging channel is installed at one end of the discharging channel, a water flow channel is installed on the outer side of the discharging channel, a rotating shaft is installed in the center of the interior of the rotating cylinder, an eccentric block is installed at the middle end of the rotating shaft, the rotating cylinder rotates to drive the discharging channel to rotate, and the rotating shaft rotates to drive the eccentric block to do circular motion, so that the discharging channel vibrates, the discharging channel can continuously vibrate in the overturning process, and water in gravel can fully flow out and flow into the water flow channel for secondary utilization.

The invention discloses a falling-type fuse which comprises a fuse tube assembly and a conductive plate electrically connected with the fuse tube assembly. The end of an upper moving contact of the fuse tube assembly is provided with a spherical surface of a contact nut. Correspondingly, the conductive plate is provided with a ball socket surface and the ball socket surface is matched with the spherical surface. The middle part of the upper moving contact of the fuse tube assembly is provided with a conical surface which is connected with the spherical surface. A conductive rod made of a beryllium-bronze rod is fixed around the conical surface. An insulating tube of the fuse tube assembly is coated with a silicon rubber. The falling-type fuse can be widely applicable to the power systems with voltage levels of 10KV, 35KV, 66KV, and the like. The falling-type fuse is characterized by large current capacity, high wind resistance, good resistance to uncleanness, quick falling during overload, stable and reliable operation, long service life, low cost of maintenance, and the like.

The invention discloses a winnowing type precise thresher and belongs to the technical field of agricultural machinery. The thresher comprises a feed hopper, wherein a flow guide device is arranged in the feed hopper and comprises a first connecting plate, a flow guide plate and a second connecting plate, the flow guide plate is bent to form flow guide grooves, one end of the first connecting plate is connected with the flow guide plate, the other end is connected with a bottom plate of the feed hopper, one end of the second connecting plate is connected with the flow guide plate, the other end is connected with the bottom plate of the feed hopper, a fan is fixedly connected onto a rack, a blowing port of the fan is connected with an air guide pipe, a discharge bin consists of a grain discharge bin and a husk discharge bin which are parallel, a suction fan is connected onto the side wall of the husk discharge bin, a bottom plate of the husk discharge bin is connected with an arc baffle, the grain discharge bin is sleeved with a sieve frame, a dust outlet is formed in a top plate of the grain discharge bin, a vent hole is formed in the bottom plate, and a grid plate is embedded at the vent hole and connected with the air guide pipe. With the adoption of the thresher, corn can be threshed in batches, the threshing efficiency can be improved, and threshed corn grains are clean and free of impurities.

The invention discloses a pressure container with a contaminate discharge buffer device. The pressure container comprises a container body. A discharge pipe is arranged on the lower surface of the container body, a first electromagnetic valve is arranged on the side face of the discharge pipe, the lower end of the discharge pipe is movably connected with a feed pipe in a clamped manner, and the feed pipe is fixedly connected with the upper surface of an upper shell. A lower shell is arranged at the lower end of the upper shell, an annular groove is formed in the lower surface of the upper shell, threads are arranged on the inner side face of the annular groove and the upper end of the inner side face of the lower shell, the lower shell is in threaded connection with the annular groove, a limiting ring is arranged in the middle of the inner side face of the upper shell, and a positioning frame is arranged in the upper shell. The pressure container with the contaminate discharge buffer device is simple in structure, the positioning frame and the buffer collecting device can be detached, materials flowing out at high speed can be buffered, impurities in the materials can be filtered and collected, contamination of the impurities to the pure materials can be avoided, and the pressure container is easy to operate and convenient to use.

The invention discloses an acid liquor filtration and neutralization device for a yellow phosphorus tail gas boiler. The device comprises a device bottom, side plates and an air inlet, wherein the upper portion of the device bottom is provided with a bearing plate, the lower portion of a water outlet pipe is provided with a water pump, a gas guide pipe is arranged above the water outlet pipe, theouter side of an air outlet pipe is provided with a cover plate, the lower portion of a water inlet pipe is provided with a fixing block, the left side of a first gear is provided with a second gear,the side plates are respectively arranged at the two sides of the device bottom, the upper portion of a spring is provided with a supporting plate, the left side of the air outlet pipe is connected with a filtration plate, the outer side of the filtration plate is provided with a gas purifying bottle, the left side of the gas purifying bottle is provided with a handle, the lower portion of a supporting rod is connected with a baffle, and the air inlet is formed in the left side of the baffle. The acid liquor filtration and neutralization device for the yellow phosphorus tail gas boiler has theadvantages that the purification efficiency of the yellow phosphorus tail gas is significant, the yellow phosphorus tail gas can be fully neutralized, the material produced after neutralization can be cleaned up in time, and the waste of resources is avoided.

The invention relates to a cigarette seedling watering and fertilizing management device, aiming at providing a cigarette seedling watering and fertilizing management device capable of carrying out quantitative control on the water addition quantity of cigarette seedlings. The device comprises a watering container and a water suction pump, wherein a water inlet pipe is fixed on the outer side wall of the watering container; a water inlet end of the water inlet pipe is communicated with a water outlet of the water suction pump by a water pipe; the water inlet pipe is provided with a water inlet valve used for adjusting the inlet water quantity; the side wall of the watering container is provided with a water outlet pipe at the side far away from the water inlet pipe; the watering container is internally provided with a water storage cavity communicated with the water inlet pipe, and a watering cavity communicated with the water outlet pipe; the bottom of the water storage cavity is communicated with the watering cavity by a sliding valve; the end, close to the water inlet pipe, of the of the sliding valve is connected with the side wall of the watering container by a spring, and the other end of the sliding valve is connected with a gravity ball capable of horizontally moving.

The invention discloses an automatic receiver-transmitter cabinet for a material pneumatic conveyor system. The automatic receiver-transmitter cabinet comprises a cabinet body which is provided with a receiving-transmitting port, and the cabinet body is internally provided with a receiving bottle storage device and a receiving-transmitting piping device which are matched with each other; the receiving-transmitting piping device communicates with an external pneumatic conveying piping through the receiving-transmitting port for receiving sample bottles conveyed, and the receiving bottle storage device comprises a receiving bottle pushing assembly and a bottle storage box which is provided with a plurality of bottle storage positions; and the receiving bottle pushing assembly approaches to the receiving-transmitting piping device, and is used for conveying the sample bottles received into the bottle storage box for storage. The automatic receiver-transmitter cabinet disclosed by the invention has the advantages of simple and compact structure, high automation degree and intelligent degree, and high working efficiency.

The invention is suitable for the technical field of coal transportation equipment and provides an efficient coal charging mechanism. The efficient coal charging mechanism comprises a conveying belt and material collecting bins. The output end of the conveying belt is a Y-shaped discharging port, and the discharging port of the conveying belt is provided with a material distributing mechanism. Thematerial distributing mechanism comprises a material distributing plate and a hydraulic rod used for adjusting the angle of the material distributing plate. The material collecting bins include the first material collecting bin and the second material collecting bin, and stirring mechanisms are arranged in the material collecting bins. The output end of the conveying belt is connected with a feeding port of the first material collecting bin and a feeding port of the second material collecting bin. Discharging limiting mechanisms are arranged at the lower ends of the first material collectingbin and the second material collecting bin. Each discharging limiting mechanism comprises a limiting plate and a material guide plate. Thus, due to the arrangement of the material collecting bins andcontrol over feeding of the material collecting bins, the requirement for fixed-point loading of various kinds of coal is met.

The invention belongs to the technical field of cobblestone cleaning, and discloses a screw extrusion progressive type cobblestone cleaning device based on the Bernoulli's theorem. The screw extrusionprogressive type cobblestone cleaning device based on the Bernoulli's theorem comprises a shell, the lower surface of the shell is fixedly connected with supporting legs, an opening of the shell is located in the top end, the middle of the bottom wall of the shell communicates with the feeding end of a discharge pipe, the discharging end of the discharge pipe is in threaded connection with a pipeplug, the top end of the right side wall of the shell fixedly communicates with a water injection pipe, the bottom of the side wall of the shell fixedly communicates with feeding ends of three storage pipes, a cleaning mechanism is arranged at the position, close to the opening end, of the interior of the shell, and a material moving mechanism is arranged at the position, on the lower side of the cleaning mechanism, in the shell. According to the screw extrusion progressive type cobblestone cleaning device based on the Bernoulli's theorem, the cleaning mechanism is used, the cobblestone canbe evenly and comprehensively cleaned in order, acute collision appearing in the cobblestone cleaning process can be avoided, the possibility that the cobblestone is damaged in the cleaning process can be reduced, and the problems appearing in the prior art can be solved.

The invention discloses a portable agricultural collecting device based on electromechanical control. A handle is welded to one side of a cart, a storage battery is connected to the top of the cart, a collecting adjusting mechanism is arranged at one end of the cart, and when the collecting device moves in a field, a grass shoveling plate is made to be inclined downwards all the time through a torsional spring; a connecting rod is connected to the bottom end of a grass shoveling plate, and a guide wheel is connected to the bottom end of the connecting rod, so that the grass shoveling plate adaptively adjusts the inclination angle according to the terrain trend, hay can be conveniently cut and collected, power is provided through rotation of wheels, a cleaning roller is made to rotate, the surfaces of the wheels are cleaned, the wheels are kept clean, and soil is prevented from being accumulated on the wheels; the lifting hydraulic cylinder is used for driving the connecting frame to move and adjusting the position of the cutting electric saw, so that the hay harvesting position is conveniently adjusted, the collecting motor rotates to drive the collecting roller to rotate, the cut hay is wound, follow-up treatment of the hay is facilitated, cutting of the hay is facilitated, and the collecting efficiency of the hay is improved.

The invention relates to the field of dust removal in coal mines, in particular to a method and device for automatically isolating dust sources and generating sprays for dust control and suppression.The device comprises lifting cylinders and a dust blocking curtain, wherein a nozzle mounting frame is mounted on the top of the lifting cylinders; and the nozzle mounting frame is provided with a plurality of nozzles. In the device for automatically isolating the dust sources and generating the sprays for dust control and suppression, the position of the dust blocking curtain is changeable in theup and down direction rather than fixed or unchangeable. When the device is in use, the lifting cylinders are used for lifting the dust blocking curtain, and the lifting cylinders do not rise when acoal cutting machine moves, so that the view of a driver is not blocked. During coal cutting, the dust blocking curtain rises, and the height of the dust blocking curtain plus the height of a chute isolation belt can effectively prevent dust from overflowing. In addition, the sprays from the nozzles are used for dust suppression treatment, and the dust can quickly fall into a chute.

The invention discloses a circular disc positioning assembly. The circular disc positioning assembly comprises a fixed support, a pressing mechanism and a jacking mechanism, wherein the pressing mechanism is fixed on the fixed support; the jacking mechanism is arranged at the bottom of the pressing mechanism; the pressing mechanism comprises an air cylinder, a spring assembly, a central shaft and a positioning shaft; the positioning disc is provided with a pin hole; and a pin of the jacking part is in fit connection with the pin hole. Technical scheme disclosed by the invention is high in automation degree, and the positioning disc and the pin are positioned by a one-way bearing, so that the defects that the positioning is troublesome and the operation is complicated are quickly solved. Due to the design scheme, the working efficiency is improved, the automation degree is high, the production cost is reduced relatively, and the quality of the product is improved, so that a needle valve can be quickly fallen into a hole of the circular disc, and the situation of errors cannot be produced.

The invention discloses feed scattering and crushing equipment capable of avoiding feed caking in the technical field of feed processing. The feed scattering and crushing equipment comprises a processing cylinder, a first motor seat is arranged in the center of the top of the processing cylinder, a first speed reducer is arranged in an inner cavity of the first motor seat, a first rotating columnis connected with the bottom of the first speed reducer, and the first rotating column penetrates through the first motor seat and the processing cylinder and extends to an inner cavity of the processing cylinder; the periphery of the first rotating column is sleeved with a main gear, matched driven gears are arranged on the left side and the right side of the main gear correspondingly, and rotating rods are inserted and fixed into inner cavities of the two driven gears correspondingly; bearing seats are arranged at the positions, corresponding to the two rotating rods, of the top of an innercavity of the processing cylinder; and the top ends of the two rotating rods are inserted and fixed into inner cavities of the matched bearing seats, and scattering devices are arranged at the bottomsof the first rotating column and the two rotating rods in a sleeving mode. According to the feed scattering and crushing equipment, high-efficiency scattering and crushing treatment can be realized on the feed, a crushing cutter is convenient to disassemble and maintain, and screening treatment can be directly performed after scattering and crushing.