1729 results about "Screw conveyor" patented technology

The invention provides a sandy stratum tunnel water burst risk prediction method. The method comprises the steps that a radar instantaneous energy spectrum in front of tunneling is obtained through a geological radar, a micro-seismic spectrum is obtained through a micro-seismic array, and a residual distance is obtained through laser ranging; aligning and coupling the two spectrums to obtain a water inrush risk index, inputting the water inrush risk index and the residual distance into a self-adaptive threshold comparator, and if the water inrush risk index and the residual distance exceed the limit, dynamically adjusting the rotating speed of a cutter head, propulsive force, the rotating speed of a screw conveyor and grouting pressure, and generating a risk avoidance path; and calling a water inrush risk model library constructed by LSTM-Attention, inputting a risk index sequence, a residual distance, cutterhead torque, a soil pressure gradient, a current change rate and other auxiliary variables, and outputting a future multi-step risk level. According to the method, accurate prediction and real-time avoidance of the water gushing risk of the sandy stratum tunnel can be realized, and the safety and efficiency of tunnel construction are improved.

The invention provides a lossless helical blade wear real-time monitoring system and detection method, and relates to the technical field of helical blade wear detection, and the lossless helical blade wear real-time monitoring system comprises at least one group of sensing assemblies and a processing terminal. Each sensing assembly comprises at least one sensing unit and is arranged on a barrel of the spiral conveyor, and each sensing unit is suitable for obtaining the magnetic induction intensity change in the process that a spiral blade is abraded in a detection range or rotates towards and away from the sensing unit and outputting a detection signal; the processing terminal is in communication connection with the sensing unit and is suitable for obtaining a detection curve representing the change of the relative position of the spiral blade and the sensing unit according to the detection signal and comparing the detection curve with a preset calibration data set so as to determine the abrasion loss of the spiral blade in the detection range according to the matching degree of the detection curve and the calibration data set.

The invention discloses digital intelligence powder type distribution-free variable viscosity fracturing fluid skid-mounted equipment and a control method thereof, and belongs to the technical field of oil and gas field development. The equipment comprises a stirring mechanism, a feeding mechanism, a water feeding mechanism and a discharging mechanism which are centrally controlled through a control box. The feeding mechanism adopts a first screw conveyor to convey solid materials to the stirring tank body; the water supply mechanism supplies water to the tank through a water supply pump and a water outlet pipe with an electromagnetic valve, and the water quantity is monitored by a water inlet flow sensor; the discharging mechanism outputs the mixed liquid through a discharging pump, and the viscosity of the fracturing fluid is detected in real time through a viscosity sensor. The control box is connected with all the sensors and execution components, and automatic adjustment and closed-loop control of the material proportion are achieved by collecting flow and viscosity data. According to the invention, accurate and automatic preparation of the fracturing fluid is realized, the problems of inaccurate traditional manual proportioning and poor stability are effectively solved, and the fluid preparation quality and the operation efficiency are remarkably improved.

The invention discloses compost turning and mixing equipment for organic fertilizer production, and relates to the technical field of organic fertilizer production, the compost turning and mixing equipment specifically comprises a chassis, a lifting conveyor is mounted at the front end of the chassis, and a screw conveyor, a storage assembly and a mixing bin are mounted at the rear end of the chassis; material receiving hoppers are mounted at the feeding ends of the two groups of spiral conveyors; the material storage assembly and the material mixing bin are both located between the two sets of spiral conveyors, and a material mixing mechanism is installed in the material mixing bin. Fertilizer turning and auxiliary material adding and mixing are integrated, the fertilizer does not need to be laterally thrown, the requirement for the site area is relatively low, the fertilizer can make full contact with air in the whole turning process, fertilizer aeration is sufficient, and therefore the compost quality is improved, and according to the actual requirement in the turning process, the fertilizer can be conveniently and rapidly turned. The materials for adjusting the carbon-nitrogen ratio and the moisture and the microbial agents for adjusting the microbial fermentation flora are added in an auxiliary mode, manual adding along with equipment is not needed, and the labor intensity of workers can be greatly reduced.

This invention discloses a continuous, high-efficiency, automatic dry-mixed mortar preparation equipment, relating to the field of mortar preparation technology. It includes a sand drying device and a feeding hopper. A sand particle screen is installed on one side of the sand drying device, and a screw conveyor connects the sand drying device and the sand particle screen. The dried sand enters the sand particle screen via the screw conveyor. Under the action of a first and second uniform material assembly, the mortar on the first conveyor belt consists of coarse sand, fine sand, cement, and filler laid out in sequence. Because the fine sand can fill the gaps in the coarse sand, reducing the relative movement space of the coarse sand and increasing internal friction, the cement and filler can be positioned on top of the coarse and fine sand. The dry-mixed mortar is stacked in a layered structure in a packaging bag using an anti-segregation telescopic tube, reducing stratification during bagging and transportation after mortar preparation, and reducing the mixing time between the mortar and water in the later stages.

The utility model discloses a mine paste filling powder batching device and method. The mine paste filling powder batching device comprises a silo, a silo top cover is arranged at the top of the silo, a dust remover and a safety valve are arranged on the silo top cover, a feeding port is formed in the upper portion of the silo and connected with a feeding pipe, and the bottom end of the silo is connected with an upper port of a silo cone. A lower port of the bin cone is connected with one end of a feeding pipe through a pneumatic butterfly valve A and a tubular flexible connector A, the other end of the feeding pipe is connected with a hopper top cover of a hopper barrel, the bottom end of the hopper barrel is connected with an upper port of a hopper cone, and a lower port of the hopper cone is connected with a feeding port of a spiral conveyor through a pneumatic butterfly valve B and a tubular flexible connector B; one end of the breathing pipe is connected with the side face of the feeding pipe, and the other end of the breathing pipe is connected with the hole opening of the hopper top cover; and a plurality of flow aiding devices are arranged on the cone wall of the bin cone and / or the cone wall of the hopper cone.

Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

The invention discloses a steel plant high-temperature flue gas waste heat recovery system and method, and relates to the technical field of waste heat recovery, the steel plant high-temperature flue gas waste heat recovery system comprises a spiral conveyor, a flue gas pipeline and a waste heat recovery furnace, a main flue on process equipment in a steel plant is connected into a flue gas inlet of the waste heat recovery furnace through the flue gas pipeline, and a plurality of snakelike heating pipes are evenly distributed in the waste heat recovery furnace; one end of the snakelike heating pipe is connected with a water inlet pipe, the other end of the snakelike heating pipe is connected with a water outlet pipe, a plurality of ash discharge hoppers are arranged at the bottom of the waste heat recovery furnace, spiral conveyors are arranged at the bottoms of the ash discharge hoppers, a cleaning mechanism is arranged in the waste heat recovery furnace, and a smoke outlet of the waste heat recovery furnace is connected to next process equipment through a smoke exhaust pipeline. According to the system, the surfaces of the two sides of the S-shaped heating pipe can be cleaned, meanwhile, the knocking head of the knocking assembly can knock the inner wall of the waste heat recovery furnace, soot attached to the inner wall falls into the ash discharging hopper, automatic and comprehensive cleaning of heat exchange equipment is achieved, and the cleanliness of the surfaces of the heat exchange equipment is guaranteed.

The invention relates to the technical field of garbage conveying, and discloses a spiral conveying device for garbage disposal, which comprises a spiral conveyor provided with a feeding pipe, the feeding pipe is provided with a feeding hopper, one side of the feeding hopper is provided with an L-shaped mounting frame, and the L-shaped mounting frame is rotatably connected with a rotating column; the lower portion of the rotating column extends into the feeding hopper and is coaxial with the feeding hopper, a driving cavity is formed in the lower portion of the rotating column, a plurality of pairs of driving shafts are arranged on the outer wall of the driving cavity at equal intervals, notches are formed in the outer walls of each pair of driving shafts, and fan-shaped pressing plates are fixedly connected into the notches. And the outer wall of one side of each pair of driving shafts is fixedly connected with a connecting column. Garbage is compressed through rotation of the fan-shaped pressing plate, volume reduction and exhaust are effectively achieved, the efficiency of the spiral conveyor is improved, and energy consumption is reduced; the synchronous tamping ball compaction and gathering mechanism ensures smooth feeding without blockage, and the stability and reliability of garbage treatment are remarkably enhanced.

An inlet hopper (3) for feeding powdered bulk material (P) into a screw conveyor (2) comprises a hopper wall (22) that defines an interior space (23). The inlet hopper (3) includes a stirring unit (30) with an agitator (31) that is arranged at least partially within the interior space (23) and is rotatable about a rotary axis (33) by means of a drive (32). The agitator (31) is frame-shaped to detach the bulk material (P) from the hopper wall (22) and to break up any bulk material bridges.

The invention belongs to equipment special for intelligent transportation of agricultural products, and provides feed transferring and conveying equipment which comprises a spiral conveyor, and the spiral conveyor is provided with a feeding port and a discharging port; the device further comprises a temporary storage bin, a quantitative overturning tray, an intermittent transmission mechanism and a main shaft leveraging driven component. The discharging port is fixedly connected with a temporary storage bin, a quantitative overturning material disc is rotatably arranged in the temporary storage bin, and a plurality of quantitative grooves are formed in the circumferential surface of the quantitative overturning material disc and distributed in the annular direction of the quantitative overturning material disc; the end part of a main shaft of the spiral conveyor is connected with a transmission part which is connected with an intermittent transmission mechanism, and the intermittent transmission mechanism is connected with a quantitative turnover tray; the intermittent transmission mechanism is used for driving the quantitative overturning tray to intermittently rotate, so that materials in the quantitative grooves are sequentially discharged; through the integrated design of spiral conveying, temporary storage quantification and intermittent transmission, full-automatic continuous operation of feeding, conveying, quantification and discharging is achieved.

The invention discloses a flour rotary type spiral conveyor, and relates to the technical field of grain processing equipment, the flour rotary type spiral conveyor comprises a conveying bin, an auger blade is rotatably connected in the conveying bin, a conveying motor is fixedly connected to the left end of the conveying bin, the flour rotary type spiral conveyor further comprises a separation mechanism, and the separation mechanism is arranged in the conveying bin; the separating mechanism comprises a plurality of fixed supporting plates fixedly connected to the inner wall of the conveying bin, a plurality of connecting rods are fixedly connected to the bottom end of the interior of the conveying bin, every two connecting rods form a group, the surfaces of the two connecting rods are slidably sleeved with connecting vertical plates, the top ends of the connecting vertical plates are fixedly connected with a movable supporting plate, and the movable supporting plate is fixedly connected with the bottom end of the conveying bin. A lifting plate is fixedly connected to the surface of the connecting vertical plate, two guide rods are fixedly connected to the inner wall of the conveying bin, and the surfaces of the two guide rods are slidably sleeved with a moving frame, so that the problem that due to the fact that gaps exist between auger blades and the inner wall of the bottom end of the conveying bin, flour can be deposited in the gaps in the conveying process is solved.

The utility model relates to the technical field of material conveying equipment, in particular to a shaftless spiral material conveying device which comprises a motor, a driving shaft, a synchronous plate, a conveying shell, shaftless spiral blades, a power transmission mechanism, an auxiliary conveying mechanism and a reinforcing mechanism. The driving shaft penetrates through and is connected into the conveying shell, the end of the shaftless spiral blade is fixedly connected to the synchronous plate, the axis of the driving shaft is parallel to the axis of the shaftless spiral blade, the conveying end of the auxiliary conveying mechanism and the shaftless spiral blade are arranged in a staggered mode, and the driving shaft and the reinforcing mechanism are located at the two ends of the conveying shell respectively. One end of the reinforcing mechanism is rotationally connected to the inner wall of the end, away from the driving shaft, of the conveying shell, the other end of the reinforcing mechanism is fixedly connected to the end, away from the motor, of the shaftless spiral blade, and the power transmission mechanism is connected between the reinforcing mechanism and the auxiliary conveying mechanism. The method has the advantage that the production safety is improved.

The utility model discloses a soybean pulping device at the front stage of soybean product processing. The soybean pulping device comprises a shelling and crushing mechanism and a crushed soybean and water adding mechanism, the shelling and crushing mechanism comprises a discharging mechanism, a first lifting conveyor is arranged at a discharging port of the discharging mechanism, a primary crusher is arranged at a discharging port of the first lifting conveyor, a spiral conveyor is arranged at a discharging port of the primary crusher, and a separating mechanism is arranged at a discharging port of the spiral conveyor. A second lifting conveyor is arranged at a discharge port of the separation mechanism, a secondary crusher is arranged at a discharge port of the second lifting conveyor, a crushed bean storage tank is arranged at a discharge port of the secondary crusher, the crushed bean storage tank is connected with a third lifting conveyor, and the third lifting conveyor is connected with a crushed bean water adding mechanism; by means of the design, the defect that soybeans can be ground only after being soaked in advance in an existing pulping process is overcome, and the technical problem that the product quality and the yield are affected by microorganisms generated in the soaking process is avoided.

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.

The utility model discloses an inclination angle screw conveyer for powdery materials, and relates to the technical field of screw conveyors, the inclination angle screw conveyer comprises a material conveying cylinder, two ends of the material conveying cylinder are respectively provided with a material inlet and a material outlet, the material inlet and the material outlet of the material conveying cylinder are fixedly connected with material conveying pipes, and the material conveying pipes are fixedly connected with connecting assemblies; the connecting assembly comprises two flanges, an elastic telescopic cover is connected between the two flanges, supporting columns are fixedly connected to the adjacent sides of the two flanges, and the ends, away from the flanges, of every two adjacent supporting columns are rotationally connected. The spiral conveyor for the inclination angle of the powdery materials can adapt to conveying of materials with different inclination angles, and meanwhile the supporting structure occupies a small space.

The automatic feeding and discharging equipment of the injection molding machine comprises a base, and a fixing frame is fixedly connected to the middle of the top end of the base. The driving mechanism drives the sliding seats on the two sides to move between the two sets of injection molding mechanisms, when one set of injection molding mechanisms is subjected to mold closing and injection molding, the other set of injection molding mechanisms is subjected to mold opening, the feeding and discharging equipment moves the set of injection molding mechanisms subjected to mold opening, and a mechanical arm conducts discharging through the discharging execution tail end; meanwhile, a spiral conveyor moves to a heating material barrel, raw materials are conveyed into a feeding hopper through a discharging pipe, feeding and discharging are carried out on one set of injection molding mechanisms for mold opening, then mold closing and injection molding are carried out, feeding and discharging equipment moves to the other set of injection molding mechanisms, and through the arrangement of the two sets of injection molding mechanisms and the feeding and discharging equipment arranged in a sliding mode, injection molding is carried out. The feeding and discharging equipment can feed and discharge materials for the two injection molding mechanisms at the same time, the number of the equipment is effectively reduced, the production cost is reduced, and meanwhile the working efficiency of the feeding and discharging equipment is effectively improved.

The utility model discloses a cut tobacco stem separating device which comprises a pressure equalizing chamber, an impurity discharging spiral conveyor, a star-shaped material throwing roller, an airflow material throwing mechanism, a winnowing box, a feeding hopper and a gathering cover. An air outlet is formed in the top of the pressure equalizing chamber; the winnowing box is positioned above the pressure equalizing chamber; the star-shaped material throwing roller is positioned at the air outlet; the airflow throwing mechanism and the feeding hopper are both communicated with a feeding port in the side face of the winnowing box. According to the tobacco shred and stem separating device, airflow is adopted for throwing materials, and light materials (such as tobacco shreds) and heavy materials (such as stem sticks) are thrown into the winnowing box at different throwing speeds and angles. Meanwhile, when the materials are thrown by the air flow, the material throwing direction is upward inclined material throwing, the horizontal moving speed of the materials in the cavity of the winnowing box is low, the horizontal moving distance of the materials in unit time is short, the utilization rate of the winnowing box can be effectively increased, the length of the box can be effectively reduced, and the occupied area of equipment can be reduced.

The invention provides intelligent casting sand mixing equipment based on dynamic compensation, and belongs to the technical field of casting equipment.The intelligent casting sand mixing equipment comprises a spiral conveyor, a stirring barrel, a rotating shaft and a sand mixing paddle, the outer side of a propelling section of the rotating shaft is sleeved with a sleeve, the outer side of the sleeve is connected with a spiral blade, and the propelling section of the rotating shaft is provided with a mounting groove; the spiral blade and the rotating shaft are arranged to be in a connectable state or a disconnectable state, when mixed sand needs to be conveyed into a mold, the spiral blade and the rotating shaft are connected through centrifugal force, at the moment, the sand mixing paddle and the spiral blade rotate synchronously, the sand is pushed, and meanwhile the sand mixing paddle and the spiral blade can rotate synchronously, so that the sand mixing efficiency is improved. The sand, the curing agent and the resin are mixed, the rotating speed of the rotating shaft is reduced when short-time shutdown does not need sand discharging, at the moment, the centrifugal force is small, the spiral blade is separated from the rotating shaft, the rotating shaft only drives the sand mixing paddle to rotate at a low speed, the sand is stirred, sand solidification is avoided, and the spiral blade does not rotate and does not push the sand.

The utility model discloses a highly-vacuum ultralow-temperature sludge drying system which comprises a first-stage airtight stock bin, a first spiral conveying device, a connecting bin, a second-stage airtight stock bin and a second spiral conveying device which are sequentially connected from top to bottom, the first spiral conveying device is provided with a first feeding port and a first discharging port, the first feeding port is communicated with the first-stage airtight bin, the first discharging port is communicated with the connecting bin, the top of the first-stage airtight bin is rotationally connected with a first airtight door, and the top of the second-stage airtight bin is rotationally connected with a second airtight door. And a second feeding hole and a second discharging hole are formed in the second spiral conveying device. According to the highly-vacuum ultralow-temperature sludge drying system disclosed by the utility model, a completely sealed design is adopted, a relatively high vacuum degree exists in the system through the vacuum pump, and an internal temperature field is established through reasonable arrangement. On the premise of ensuring the drying effect, the average drying temperature is greatly reduced, and the operation cost of a user is reduced.

The utility model relates to filtering equipment capable of automatically replacing and filling activated carbon and an extraction oil removal system, and relates to the field of filtering equipment. The filtering equipment comprises a feeding mechanism, a spiral conveying pipe, a filtering unit, a conveying belt and a waste barrel, the filtering unit comprises a filtering barrel, a top cover and a bottom cover, the top cover and the bottom cover are detachably connected with the filtering barrel, an activated carbon inlet and a liquid inlet are formed in the top cover, and a liquid outlet is formed in the bottom cover; the feeding mechanism is located above the filtering unit, the feeding mechanism is communicated with the spiral conveying pipe, and a discharging opening of the spiral conveying pipe is communicated with the activated carbon inlet; the conveying belt is arranged below the filtering unit, and the tail end of the conveying belt communicates with the waste barrel. The filtering equipment can be quickly disassembled and is convenient to maintain, filling and discharging of activated carbon do not need manual intervention, automatic replacement can be achieved, operators are effectively prevented from entering the tank body for operation, safety and efficiency are improved, labor intensity is reduced, and the filtering equipment is more efficient and more environmentally friendly.

The invention provides an anti-blocking control method and system for a spiral conveying device and the spiral conveying device, and belongs to the technical field of material conveying equipment. The method comprises the following steps: acquiring real-time current data of a spiral motor of the spiral conveying device; based on the quantitative relation between the preset filling rate and the current value of the spiral motor, the real-time filling rate of the materials in the spiral conveying device is determined according to the real-time current data; comparing the real-time filling rate with a preset anti-blocking threshold value; under the condition that the real-time filling rate is larger than or equal to a preset anti-blocking threshold value, it is judged that the blocking risk exists, speed increasing operation is executed, and the speed increasing operation comprises the step that an instruction is sent to the variable frequency driving module to increase the rotating speed of the spiral motor. And the active anti-blocking effect of the spiral conveying device is achieved, the risk of manual disassembly and blockage clearing is reduced, and a guarantee is provided for continuous operation of the whole system.

The utility model relates to a thermal desorption treatment device for high-concentration mercury polluted soil, which comprises a feeding device, the feeding device comprises a feeding hopper, the bottom of the feeding hopper is connected with the input end of a conveying belt, the output end of the conveying belt is provided with a spiral conveyer, and the output end of the spiral conveyer is provided with an indirect thermal desorption device; the indirect thermal desorption device comprises a material cavity, a combustion cavity is arranged below the material cavity, and a combustor is arranged below the combustion cavity; the tail part of the material cavity is provided with a gas phase treatment device, the gas phase treatment device comprises a high-temperature ceramic dust remover, the upper end of the high-temperature ceramic dust remover is communicated with the upper end of a first-stage condenser through a pipeline, the first-stage condenser is communicated with the upper end of a second-stage condenser through a pipeline, and the second-stage condenser is communicated with the tail part of the material cavity through a pipeline. The second-stage condenser is connected with the upper end of the freezer through a pipeline, the freezer is connected with the demister through a pipeline, and the demister is communicated with the upper ends of the first-stage adsorption tank and the second-stage adsorption tank through pipelines.

The automatic deslagging system comprises an ash chamber, ash cutters, a rotating shaft, a spiral conveying device, a cooling device and a first motor driving device, the rotating shaft is arranged in the center of the ash chamber, the multiple ash cutters are arranged on the rotating shaft and arranged at intervals in the length direction of the rotating shaft, and the spiral conveying device is arranged on the rotating shaft. The rotary shaft is in transmission connection with a first motor driving device arranged outside the ash chamber, the cooling device is a water cooling jacket arranged on the peripheral side of the ash chamber in a wrapping mode, and a feeding port of the spiral conveying device is connected with the bottom of the ash chamber. And not only is the operation safety of the gasification furnace guaranteed, but also the service life of equipment is greatly prolonged, and the deslagging efficiency is greatly improved.

The utility model relates to the technical field of shield tunnel engineering, in particular to an earth pressure balance shield muck in-situ solidification system. The system comprises a spiral conveyor, a belt conveyor, a spiral conveying device, a vertical conveying device and a curing agent storage tank, the spiral conveyor is arranged at the muck output end of the earth pressure balance shield machine; a belt conveyor is arranged at one end, far away from the earth pressure balance shield machine, of the spiral conveyor; a spiral conveying device is arranged at the end, away from the spiral conveyor, of the belt conveyor. A vertical conveying device is arranged at the end, away from the belt conveyor, of the spiral conveying device. A soil inlet butted with the spiral conveying device is formed in the lower end of the vertical conveying device, and a soil outlet butted with external transfer equipment is formed in the upper end of the vertical conveying device; the curing agent storage tank is connected with the spiral conveying device. According to the utility model, the problems of high investment cost, large occupied area and low muck treatment efficiency in the traditional muck solidification treatment mode can be solved, and the reutilization of muck resources is realized.

The invention discloses a lifting hook type shot blasting device, and relates to the technical field of shot blasting machines, the lifting hook type shot blasting device comprises a shot blasting chamber and further comprises a support fixed on the shot blasting chamber, the support is slidably connected with a lifting appliance through a rail, a plurality of shot blasting devices are fixed on the shot blasting chamber, a spiral conveyer is fixed on the shot blasting chamber, and the lifting appliance is connected with a lifting hook. A bucket elevator is arranged on one side of the spiral conveyor, and the discharging end of the spiral conveyor is located in the bucket elevator. The shot blasting device comprises a shot blasting chamber and a supporting frame fixed to the shot blasting chamber, a treatment box is fixed to the supporting frame, a screening mechanism is arranged on the treatment box, and the screening mechanism is used for screening impurities containing impurities in shots; the winnowing mechanism is arranged on the treatment box, and the winnowing mechanism is used for screening out fine impurities containing impurities in the shots; through the arrangement of the screening mechanism, large-particle-size impurities and broken shots can be more directly and effectively prevented from entering the shot blasting chamber again, and all parts in the shot blasting chamber can be well protected.

The invention belongs to the technical field of steelmaking wastewater treatment, and particularly relates to a device and a method for enabling a lime milk preparation system to operate stably, in the device, a radar level gage is installed in the middle of the top of a calcium hydroxide powder bin, and a high-resistance rotation level gage and a low-resistance rotation level gage are both installed outside the side wall of a cylinder of the calcium hydroxide powder bin; the low-frequency oscillators are symmetrically installed on the two sides of a cone of the calcium hydroxide powder bin, the lower portion of the cone is connected with the pipeline, the manual insertion plate door, the upper electric insertion plate door, the star-shaped feeder, the spiral conveyor and the lower electric insertion plate door are sequentially connected to the pipeline, and the lower electric insertion plate door is connected into the lime milk dissolving box through the pipeline. The method comprises the following steps of multi-stage material level redundancy detection, low-frequency oscillator-star feeder-screw conveyor three-stage collaborative blanking, star feeder frequency conversion and screw conveyor closed-loop metering, and safety isolation of an upper electric plug plate door and a lower electric plug plate door. According to the device and method, accurate discharging is achieved, calcium hydroxide hardening in the system is prevented, and the system operates safely and stably.

The utility model discloses a medical waste screw conveyor which comprises a conveying barrel, a conveying belt and a conveying belt. The feeding pipe is connected with the upper surface of the conveying cylinder; the discharging pipe is connected with the bottom surface of the conveying cylinder, and the discharging pipe and the feeding pipe are close to the two ends of the conveying cylinder in the length direction respectively; the conveying shaft is rotationally arranged in the conveying cylinder; the driving assembly is arranged at the end part of the conveying cylinder and is connected with the conveying shaft; the spiral blade is connected to the outer side of the conveying shaft; the plurality of wedge-shaped blocks are connected to the conveying surface of the spiral blade; the filtering holes penetrate through the inner wall of the lower half part of the conveying cylinder. According to the scheme, the multiple wedge-shaped blocks are arranged on the spiral blade, fibrous materials and heavy particles are scattered through the wedge-shaped blocks in the conveying process, the heavy particles are discharged through the multiple filtering holes under the gravity effect, separation and filtering of the fibrous materials and the heavy particles are achieved in the conveying process, the medical waste treatment efficiency can be improved, and the labor intensity of workers is relieved. The equipment cost is reduced.

The invention relates to the technical field of solid waste treatment, and discloses a coking solid waste treatment device, which comprises: a material mixing assembly, which comprises a double-screw conveyor and a coal bunker arranged at the top of the double-screw conveyor, and a discharge port of the double-screw conveyor is connected to a bucket elevator; the moving assembly comprises a sliding way, a sliding block arranged in the sliding way, a moving base arranged on the sliding block, a first motor arranged on the sliding way, a first transmission piece connected with the first motor and the sliding block and an overturning assembly. According to the coking solid waste treatment device, coking solid waste and coal are mixed and then directly conveyed to the coke oven for coking through the coking belt, stacking in a coal yard is avoided, and therefore the coking solid waste is prevented from polluting soil; the solid waste is prevented from being accumulated at one position to influence the mixing efficiency of the double-screw conveyor, and the coke quality and the solid waste treatment efficiency are improved.

The invention discloses a manufacturing method of a multifunctional toilet cleaning block. According to the method, continuous production of the toilet cleaning block of a multi-layer structure is achieved through an automatic process. The method comprises the specific steps that bottom materials are mixed through a funnel, then precisely put into the bottom of a mold cavity through a spiral conveyor and flattened; the core material is centrally arranged through a vibration disc or a suction disc device; the top material covers the surface of the core material in the same manner; one-time forming of multiple layers of materials is achieved through a pressurizing device with a pressure monitoring function; after demolding is completed through the demolding clamping mechanism, 180-degree overturning positioning is conducted through the vacuum suction cup device; and finally, sealing and packaging are completed through a blister packaging machine. According to the scheme, modular equipment is adopted for collaborative operation, the technical bottleneck of discontinuous production of the multi-effect toilet cleaning block is broken through, multi-effect collaboration of cleaning, sterilization and the like is achieved through the layered pressing technology, and meanwhile the production efficiency and the product percent of pass are improved. According to the method, full-process automatic production from feeding to packaging is realized.